CN115851294B - Dustproof pyrolysis oil gas outlet anti-blocking self-cleaning device - Google Patents
Dustproof pyrolysis oil gas outlet anti-blocking self-cleaning device Download PDFInfo
- Publication number
- CN115851294B CN115851294B CN202211658320.7A CN202211658320A CN115851294B CN 115851294 B CN115851294 B CN 115851294B CN 202211658320 A CN202211658320 A CN 202211658320A CN 115851294 B CN115851294 B CN 115851294B
- Authority
- CN
- China
- Prior art keywords
- oil gas
- shaftless
- self
- pyrolysis oil
- pyrolysis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses an anti-blocking self-cleaning device for a dust-containing pyrolysis oil gas outlet, which comprises the following components: the pyrolysis chamber, self-cleaning double-screw system and pyrolysis oil gas rapid cooling section; a pyrolysis gas outlet pipeline is arranged above the pyrolysis chamber; the self-cleaning double-screw system comprises a 8-shaped sleeve, a shaftless double-screw and a driving mechanism, wherein one end of the 8-shaped sleeve is fixedly communicated with the side wall of the pyrolysis gas outlet pipeline, and the shaftless double-screw is arranged in the 8-shaped sleeve; the fixed end of the shaftless double helix is connected with the driving mechanism, and the free end extends into the pyrolysis gas outlet pipeline; the shaftless double helix comprises two shaftless helices with two meshed root parts, and self-excitation stirring sheets matched with each other are respectively arranged on the two shaftless helices; the two shaftless screws collide the two self-vibration stirring sheets in the rotation process to generate high-frequency vibration, so that the coke blocks adhered to the shaftless screws are separated. By utilizing the invention, the furnace can be prevented from being stopped due to the blockage of the connecting pipe from the pyrolysis gas outlet to the condenser inlet, and the continuous operation time of pyrolysis equipment can be prolonged.
Description
Technical Field
The invention relates to the technical field of harmless and recycling of organic wastes, in particular to an anti-blocking self-cleaning device for a dust-containing pyrolysis oil gas outlet.
Background
The anaerobic pyrolysis is an important way for recycling the organic wastes, namely, the organic wastes are pyrolyzed into condensed oil, noncondensable gas and solid powder under inert atmosphere, and the existing pyrolysis device mainly comprises a rotary kiln, a spiral moving bed and the like.
The chinese patent document with publication number CN105972602a discloses a treatment device for solid organic waste, which comprises a pyrolysis gasifier, a gas purification system and a flue gas purification system, wherein the pyrolysis gasifier is a double-layer rotary kiln. The chinese patent publication No. CN107238081a discloses an organic solid waste anaerobic pyrolysis device, which comprises a first pyrolyzer, a first pyrolyzer slag extractor, a first dynamic and static sealing device, a settling tower, a feeder, a second dynamic and static sealing device, a second pyrolyzer, an ash discharge plate, an ash discharge device, a third dynamic and static sealing device, ash discharge equipment and a catalyst adding device.
The existing pyrolysis device has the problems that pyrolysis oil gas carries dust to deposit and coke in a pipeline connecting a pyrolysis oil gas outlet and a condenser inlet, and the pipeline is blocked, so that unsmooth gas outlet is caused, and long-time stable operation of equipment is affected.
Because pyrolysis device pyrolysis gas export to condenser import connecting pipe must exist, the mode of avoiding connecting pipe jam has in the current scheme: 1. the diameter of the connecting pipe is increased, the blocking time is prolonged, and the furnace is stopped for disassembly and dredging when the circulation of pyrolysis gas is influenced; 2. shortening a connecting pipe, arranging a precipitation tank at an outlet of the connecting pipe, and then leading the precipitating tank to a condenser; 3. a reciprocating dredging rod is arranged in the connecting pipe, and dredging is performed regularly. In the scheme 1, although the blocking time is prolonged, the cooling time of the furnace is long, the furnace can be disassembled for dredging after the gas in the furnace is replaced, the maintenance cost is high, and the furnace can not be shut down unexpectedly; the tar deposited in the settling tank arranged in the scheme 2 is difficult to clean, and the treatment cost of the tar is high; in scheme 3, coking can occur on the dredging rod, sealing is difficult, and reciprocating motion easily causes pressure fluctuation in the furnace on one hand, so that stable operation of equipment is affected, and on the other hand, coking on the pipe wall easily blocks when falling off, so that the quality of pyrolysis solids is reduced.
Disclosure of Invention
The invention provides an anti-blocking self-cleaning device for a dust-containing pyrolysis oil gas outlet, which can avoid furnace shutdown caused by blockage of a connecting pipe from a pyrolysis gas outlet to a condenser inlet and can improve the continuous operation time of pyrolysis equipment.
An anti-blocking self-cleaning device for a dust-containing pyrolysis oil gas outlet, comprising: the pyrolysis chamber, self-cleaning double-screw system and pyrolysis oil gas rapid cooling section;
the pyrolysis chamber is used for thermally decomposing the organic particulate matters into gaseous pyrolysis oil gas and solid powder; a pyrolysis gas outlet pipeline with a pyrolysis oil gas outlet pressure measuring point is arranged above the pyrolysis chamber, and an overhaul port is arranged at the top of the pyrolysis gas outlet pipeline;
the self-cleaning double-screw system comprises an 8-shaped sleeve, a shaftless double-screw and a driving mechanism, wherein one end of the 8-shaped sleeve is fixedly communicated with the side wall of a pyrolysis gas outlet pipeline, and the shaftless double-screw is arranged in the 8-shaped sleeve; the fixed end of the shaftless double helix is connected with the driving mechanism, and the free end extends into the pyrolysis gas outlet pipeline; the shaftless double helix comprises two shaftless helices with two meshed root parts, and self-excitation stirring sheets matched with each other are respectively arranged on the two shaftless helices; the two shaftless screws collide the two self-vibration stirring sheets to generate high-frequency vibration in the rotating process, so that the coke blocks adhered to the shaftless screws are separated;
the pyrolysis oil gas rapid cooling section is communicated and fixed with the lower wall surface of one end of the 8-shaped sleeve, which is far away from the pyrolysis chamber; the inside of pyrolysis oil gas rapid cooling section is equipped with the pyrolysis oil gas cooling chamber pressure measurement station that is used for testing the interior air current resistance of 8 font sleeve pipe, and the bottom of pyrolysis oil gas rapid cooling section is equipped with pyrolysis oil gas cooling back discharge port.
According to the self-excitation stirring piece, the self-cleaning dredging of the connecting pipe is realized by utilizing the double-screw coupling self-excitation stirring piece, and high-frequency vibration generated by the meshing friction of the shaftless double-screw part and the collision of the self-excitation stirring piece, so that pyrolysis oil gas is cooled rapidly in an auxiliary manner, a coking temperature window is avoided, and the continuous operation time of pyrolysis equipment is prolonged.
In order to enable the coke blocks adhered to the spiral sheets to fall off, preferably, the self-vibration stirring sheets are made of spring steel, the contact ratio of the two self-vibration stirring sheets is 2-3 mm when the two self-vibration stirring sheets collide, and the frequency of high-frequency vibration is 100-150 Hz. The collision of the self-excitation vibration pulling sheets on the two shaftless screws generates high-frequency vibration every turn, so that the coke blocks adhered on the shaftless screws are separated.
In order to produce a more pronounced high frequency vibration in the two shaftless spirals. Preferably, the length of each shaftless spiral is 1.5-2 m, each shaftless spiral is made of square steel, the side length of the cross section of the square steel is 15-25 mm, and the shaftless spiral has a certain deformation quantity, simultaneously reduces the weight of the shaftless spiral and avoids the sagging of the end. The self-vibration shifting sheet is arranged at a position which is close to the free end by 1/3 of the shaftless spiral.
In order to realize self-cleaning of the double-screw system, the meshing depth of the screw slices on the two shaftless screws is consistent with the width of the screw slices, and the axial distance between two adjacent screw slices is 10 mm-15 mm; the rotating speed of the two shaftless screws is 3 r/min-5 r/min.
In order to reduce the solid content of the condensed oil, preferably, the inner diameter of the 8-shaped sleeve pipe and the size of the shaftless double helix are matched with the pyrolysis oil gas amount of the pyrolysis gas outlet pipeline, so that the flow velocity of the pyrolysis oil gas in the 8-shaped sleeve pipe is 0.5-0.8 m/s, the pyrolysis oil gas is used for depositing solid powder in the pyrolysis oil gas, and the pyrolysis oil gas returns to the pyrolysis chamber under the reverse pushing of the double helix so as to reduce the dust content of the pyrolysis oil gas entering the cooling section.
In order to avoid condensation of pyrolysis oil gas in the 8-shaped sleeve, a heat preservation layer is preferably arranged outside the 8-shaped sleeve in the self-cleaning double-screw system, and further preferably a flue gas jacket is used for heat preservation.
The driving mechanism comprises a frame, a driving motor, a gear set and a bearing seat, wherein the driving motor, the gear set and the bearing seat are fixed on the frame; the frame is fixed with one end of the 8-shaped sleeve in a sealing way through the sealing component;
the gear set comprises a driving gear and a driven gear, and a driving rotating shaft connected with the driving motor sequentially passes through the bearing seat, the driving gear and the sealing assembly and is fixed with one shaftless screw; the driven gear is fixedly provided with a driven rotating shaft, one end of the driven rotating shaft penetrates through the sealing assembly and then is fixed with the other shaftless screw in the shaftless double screw, and the other end of the driven rotating shaft is fixed with the other bearing seat.
Preferably, the sealing assembly comprises a sealing base, and a graphite ring packing seal, a graphite copper sleeve support, a fluorine rubber sealing ring and a sealing gland which are sequentially overlapped and arranged in the sealing base, wherein an oil filling hole communicated with the graphite copper sleeve support is formed in the side wall of the sealing base; the sealing base is fixed on the bottom plate of the frame through bolts, and the bottom plate of the frame is fixed with the 8-shaped sleeve through bolts.
The high temperature resistant graphite ring is used for filling and sealing at the outlet temperature of pyrolysis oil gas of 400-450 ℃, particles in the pyrolysis oil gas are isolated, then a graphite copper sleeve is used for supporting, and the high temperature resistant fluorine rubber ring is used for sealing when the temperature is reduced to be lower than 150 ℃, so that the high temperature sealing of the rotating shaft is realized. And an oil filling hole is designed on the sealing base, high-temperature lubricating grease is filled, and the service life of the graphite copper sleeve is prolonged.
Because the self-cleaning double-screw system adopts shaftless screw, in order to improve the stability of the rotating shaft, preferably, the support of the driving rotating shaft and the driven rotating shaft in the self-cleaning double-screw system consists of a self-aligning bearing in a bearing seat and a graphite copper sleeve in a sealing assembly.
The pyrolysis oil gas quick cooling section comprises a cooling chamber, two nozzle mounting openings which incline downwards are arranged on the cooling chamber, a nozzle group which faces the cooling chamber is arranged on each nozzle mounting opening, a cooling medium interface is arranged at the tail part of each nozzle group, and an drift diameter ball valve is arranged in the middle of each nozzle group.
In order to avoid a coking temperature window, preferably, the cooling medium sprayed in the pyrolysis oil gas rapid cooling section is condensed pyrolysis oil or water with large vaporization latent heat, so that the pyrolysis oil gas is rapidly cooled. Further in order to promote the cooling of pyrolysis oil gas, the nozzle contralateral arrangement prevents to appear the oil gas corridor, makes pyrolysis oil gas and coolant fully heat transfer.
In the process of controlling the operation of the self-cleaning double-screw system, the air flow resistance of the self-cleaning double-screw system is judged according to the pressure difference between the pyrolysis oil gas outlet pressure measuring point and the pyrolysis oil gas cooling chamber pressure measuring point, and the start and stop or the rotating speed of the shaftless double-screw system are controlled. Specifically, the design value of the pressure difference is 100 Pa-150 Pa, and if the pressure difference is more than 300Pa, the method shows that powder is deposited in the self-cleaning double-screw system, and the rotation speed of the shaftless double-screw is improved to 5r/min.
Compared with the prior art, the invention has the following beneficial effects:
the invention utilizes the non-shaft double-screw part meshing friction and the self-vibration shifting piece collision to generate high-frequency vibration to promote the coking to fall off, can effectively prevent the connection pipe from being blocked from the pyrolysis gas outlet to the condenser inlet, and improves the continuous operation time of pyrolysis equipment.
Drawings
FIG. 1 is a schematic diagram of a dust-containing pyrolysis oil gas outlet anti-blocking self-cleaning device in an embodiment of the invention;
FIG. 2 is a top view of a dust-laden pyrolysis oil gas outlet anti-blocking self-cleaning device according to an embodiment of the invention;
FIG. 3 is a side view of a dust-laden pyrolysis oil gas outlet anti-blocking self-cleaning device in an embodiment of the invention;
FIG. 4 is a schematic diagram of a seal assembly of a device for anti-blocking and self-cleaning a dust-containing pyrolysis oil gas outlet in an embodiment of the invention.
Detailed Description
The invention will be described in further detail with reference to the drawings and examples, it being noted that the examples described below are intended to facilitate the understanding of the invention and are not intended to limit the invention in any way.
As shown in figure 1, the anti-blocking self-cleaning device for the dust-containing pyrolysis oil gas outlet comprises a pyrolysis chamber 1, a pyrolysis oil gas outlet pipeline 2, a pyrolysis oil gas outlet pressure measuring point 3, an overhaul port 4, a self-cleaning double-screw system 5, a pyrolysis oil gas rapid cooling section 6, a pyrolysis oil gas cooling chamber pressure measuring point 7 and a pyrolysis oil gas cooling rear discharge port 8.
Wherein the pyrolysis chamber 1 is used for thermally decomposing organic particles into gaseous pyrolysis oil gas and solid powder; the pyrolysis oil gas outlet pipeline 2 is arranged above the pyrolysis chamber 1 and is used for discharging pyrolysis oil gas; the pyrolysis oil gas outlet pressure measuring point 3 is arranged in the pyrolysis oil gas outlet pipeline 2 and is used for monitoring the pressure of the pyrolysis chamber 1.
The upper end of pyrolysis oil gas outlet pipe 2 is equipped with access hole 4, and access hole 4 specifically adopts the flange mouth, opens during the maintenance for overhaul clean pyrolysis oil gas export.
The self-cleaning double-screw system 5 comprises a 8-shaped sleeve 508, a shaftless double-screw 506 and a driving mechanism, wherein one end of the 8-shaped sleeve 508 is fixedly communicated with the side wall of the pyrolysis gas outlet pipeline 2, the shaftless double-screw 506 is arranged in the 8-shaped sleeve 508, and the driving mechanism is fixedly sealed with the other end of the 8-shaped sleeve 508. The fixed end of the shaftless double helix 506 is connected to the drive mechanism and the free end extends into the pyrolysis gas outlet duct 2.
As shown in fig. 2, the shaftless double helix 506 comprises two shaftless helices with two meshed root parts, one is a driving helix 5061 and the other is a driven helix 5062, and self-excitation vibration stirring sheets 507 matched with each other are respectively arranged on the two shaftless helices; the two shaftless screws collide the two self-vibration stirring sheets 507 to generate high-frequency vibration in the rotation process, so that the coke attached to the shaftless screws is separated.
The driving mechanism comprises a frame 503, a driving motor 501 fixed on the frame 503, a gear set 504 and a bearing seat 502; the housing 503 is sealingly secured to one end of a figure-8 sleeve 508 by a seal assembly 505.
The gear set 504 includes a driving gear 5041 and a driven gear 5042, and an output shaft of the driving motor 501 sequentially passes through the bearing seat 502, the driving gear 5041 and the sealing component 505 and then is fixed with the driving screw 5061; driven shaft 5042 is fixed to driven screw 5062 after passing through seal 505.
As shown in fig. 4, the seal assembly 505 includes a seal base 5055, a graphite ring packing seal 5051, a graphite copper sleeve support 5052, a fluorine rubber seal ring 5053 and a seal gland 5054 which are disposed in the seal base 5055 and are sequentially overlapped, and an oil filler hole 5056 which communicates with the graphite copper sleeve support 5052 is formed in a side wall of the seal base 5055. The seal base 5055 is bolted to the floor of the housing 503, and the floor of the housing 503 is bolted to the figure-8 sleeve 508.
Because the pyrolysis oil gas temperature is high, the high-temperature resistant graphite ring packing is firstly used for sealing 5051, particles in the pyrolysis oil gas are isolated, then a graphite copper sleeve is used for supporting 5052, and the high-temperature resistant fluorine rubber ring is used for sealing 5053 when the temperature is reduced to be lower than 150 ℃, so that the high-temperature sealing of the rotating shaft is realized. Oil filling holes 5056 are designed on the sealing base 5055, high-temperature lubricating grease is filled, and the service life of the graphite copper sleeve is prolonged.
As shown in fig. 1 and 3, the pyrolysis oil gas rapid cooling section 6 comprises a cooling chamber 601, two nozzle mounting openings 602 which incline downwards are arranged on the cooling chamber 601, a nozzle group 603 which faces the cooling chamber is arranged on each nozzle mounting opening 602, a cooling medium interface 605 is arranged at the tail part of the nozzle group 603, and an drift diameter ball valve 604 is arranged at the middle part of the cooling medium interface 605.
The upper end of the cooling chamber 601 is communicated and fixed with the lower wall surface of one end, far away from the pyrolysis chamber 1, of the 8-shaped sleeve 508; the inner wall surface of the cooling chamber 601 is provided with a pyrolysis oil gas cooling chamber pressure measuring point 7 for testing the airflow resistance in the 8-shaped sleeve, and the bottom of the cooling chamber 601 is provided with a pyrolysis oil gas cooling rear exhaust outlet 8. The discharge outlet 8 is used for collecting and discharging condensed oil gas and sprayed cooling medium after pyrolysis oil gas is cooled.
In the embodiment of the invention, in order to realize self-cleaning of the double-screw system, the shaftless double-screw part in the self-cleaning double-screw system is meshed and is divided into a driving screw 5061 and a driven screw 5062, and the driving gear 5041 and the driven gear 5042 in the gear set are used for driving, so that the two screws are opposite in steering direction, can mutually rub to prevent coking and blocking, and the rotating speed is 3r/min. The depth of engagement of the shaftless double helix is consistent with the width of the helical sheet, and the axial distance between the two shaftless helical sheets is 15mm.
In order to enable the coke blocks adhered to the spiral sheets to fall off, the self-vibration stirring sheets 507 in the self-cleaning double-spiral system are made of spring steel, and the self-vibration stirring sheets on two shaftless spirals collide to generate high-frequency vibration every turn so as to enable the coke blocks adhered to the shaftless spirals to fall off. The contact ratio of the self-excitation plectrum is 2mm when in collision, so that the blocking is prevented, and the frequency of high-frequency vibration is 100-150 Hz.
In order to achieve a better vibration decoking effect, in the embodiment, the length of each shaftless spiral is 1.5m, each shaftless spiral is made of square steel, the side length of the cross section of the square steel is 15mm, a certain deformation amount is achieved, and meanwhile, the weight of the shaftless spiral is reduced, and the end portion of the shaftless spiral is prevented from sagging. The self-excitation shifting sheet is arranged at a position which is 1/3 of the free end and is close to the free end on the shaftless spiral.
In order to reduce the solid content of the condensate oil, the flow rate of pyrolysis oil gas in the 8-shaped sleeve 508 in the self-cleaning double-screw system is 0.5m/s, so that solid powder in the pyrolysis oil gas is promoted to be deposited, and the pyrolysis oil gas enters the pyrolysis chamber 1 under the reverse pushing of the double screw to reduce the dust content of the pyrolysis oil gas entering the cooling section.
In order to avoid condensation of pyrolysis oil gas in the 8-shaped sleeve pipe 8, heat preservation is carried out outside the 8-shaped sleeve pipe 8 in the self-cleaning double-screw system, and the heat preservation material is aerogel and has a heat preservation thickness of 200mm.
Because the self-cleaning double-screw system adopts shaftless screw, in order to improve the stability of the rotating shaft, the support of the driving rotating shaft and the driven rotating shaft in the self-cleaning double-screw system consists of a self-aligning bearing in a bearing seat and a graphite copper sleeve in a sealing assembly.
In order to avoid a coking temperature window, the cooling medium sprayed in the pyrolysis oil gas rapid cooling section is condensed pyrolysis oil, so that the pyrolysis oil gas is rapidly cooled. Further in order to promote the cooling of pyrolysis oil gas, the nozzle contralateral arrangement prevents to appear the oil gas corridor, makes pyrolysis oil gas and coolant fully heat transfer.
In order to judge the running condition of the self-cleaning double-screw system, the airflow resistance of the self-cleaning double-screw system is judged according to the pressure difference between the pyrolysis oil gas outlet pressure measuring point 3 and the pyrolysis oil gas cooling chamber pressure measuring point 7, and the starting and stopping or the rotating speed of the rotating shaft is controlled. Specifically, the design value of the pressure difference is 100 Pa-150 Pa, and if the pressure difference is more than 300Pa, the method shows that powder is deposited in the self-cleaning double-screw system, and the rotation speed of the shaftless double-screw is improved to 5r/min.
The foregoing embodiments have described in detail the technical solution and the advantages of the present invention, it should be understood that the foregoing embodiments are merely illustrative of the present invention and are not intended to limit the invention, and any modifications, additions and equivalents made within the scope of the principles of the present invention should be included in the scope of the invention.
Claims (10)
1. The utility model provides a dust-containing pyrolysis oil gas export prevents stifled self-cleaning device which characterized in that includes: the pyrolysis chamber, self-cleaning double-screw system and pyrolysis oil gas rapid cooling section;
the pyrolysis chamber is used for thermally decomposing the organic particulate matters into gaseous pyrolysis oil gas and solid powder; a pyrolysis gas outlet pipeline with a pyrolysis oil gas outlet pressure measuring point is arranged above the pyrolysis chamber, and an overhaul port is arranged at the top of the pyrolysis gas outlet pipeline;
the self-cleaning double-screw system comprises an 8-shaped sleeve, a shaftless double-screw and a driving mechanism, wherein one end of the 8-shaped sleeve is fixedly communicated with the side wall of a pyrolysis gas outlet pipeline, and the shaftless double-screw is arranged in the 8-shaped sleeve; the fixed end of the shaftless double helix is connected with the driving mechanism, and the free end extends into the pyrolysis gas outlet pipeline; the shaftless double helix comprises two shaftless helices with two meshed root parts, and self-excitation stirring sheets matched with each other are respectively arranged on the two shaftless helices; the two shaftless screws collide the two self-vibration stirring sheets to generate high-frequency vibration in the rotating process, so that the coke blocks adhered to the shaftless screws are separated;
the pyrolysis oil gas rapid cooling section is communicated and fixed with the lower wall surface of one end of the 8-shaped sleeve, which is far away from the pyrolysis chamber; the inside of pyrolysis oil gas rapid cooling section is equipped with the pyrolysis oil gas cooling chamber pressure measurement station that is used for testing the interior air current resistance of 8 font sleeve pipe, and the bottom of pyrolysis oil gas rapid cooling section is equipped with pyrolysis oil gas cooling back discharge port.
2. The anti-blocking self-cleaning device for the dust-containing pyrolysis oil gas outlet according to claim 1, wherein the self-vibration stirring sheets are made of spring steel, the contact ratio of the two self-vibration stirring sheets is 2-3 mm when the two self-vibration stirring sheets collide, and the frequency of high-frequency vibration is 100-150 Hz.
3. The anti-blocking self-cleaning device for the dust-containing pyrolysis oil gas outlet according to claim 1, wherein the length of each shaftless spiral is 1.5-2 m, the shaftless spiral is made of square steel, the side length of the square steel is 15-25 mm, and the shaftless spiral has a certain deformation amount; the self-vibration shifting sheet is arranged at a position which is close to the free end by 1/3 of the shaftless spiral.
4. The anti-blocking self-cleaning device for the dust-containing pyrolysis oil gas outlet according to claim 1, wherein the meshing depth of the spiral slices on the two shaftless spirals is consistent with the width of the spiral slices, and the axial distance between two adjacent spiral slices is 10 mm-15 mm; the rotating speed of the two shaftless screws is 3 r/min-5 r/min.
5. The anti-blocking self-cleaning device for the dust-containing pyrolysis oil gas outlet according to claim 1, wherein the inner diameter of the 8-shaped sleeve pipe and the size of the shaftless double helix are matched with the pyrolysis oil gas amount of the pyrolysis gas outlet pipeline, so that the flow rate of the pyrolysis oil gas in the 8-shaped sleeve pipe is 0.5 m/s-0.8 m/s, the anti-blocking self-cleaning device is used for depositing solid powder in the pyrolysis oil gas, and the solid powder is returned to the pyrolysis chamber under the reverse pushing of the double helix so as to reduce the dust content of the pyrolysis oil gas entering the cooling section.
6. The anti-blocking self-cleaning device for the dust-containing pyrolysis oil gas outlet according to claim 1, wherein the driving mechanism comprises a frame, and a driving motor, a gear set and a bearing seat which are fixed on the frame; the frame is fixed with one end of the 8-shaped sleeve in a sealing way through the sealing component;
the gear set comprises a driving gear and a driven gear, and a driving rotating shaft connected with the driving motor sequentially passes through the bearing seat, the driving gear and the sealing assembly and is fixed with one shaftless screw; the driven gear is fixedly provided with a driven rotating shaft, one end of the driven rotating shaft penetrates through the sealing assembly and then is fixed with the other shaftless screw in the shaftless double screw, and the other end of the driven rotating shaft is fixed with the other bearing seat.
7. The anti-blocking self-cleaning device for the dust-containing pyrolysis oil gas outlet according to claim 6, wherein the sealing assembly comprises a sealing base, and a graphite ring packing seal, a graphite copper sleeve support, a fluorine rubber sealing ring and a sealing gland which are sequentially overlapped and arranged in the sealing base, and an oil filling hole communicated with the graphite copper sleeve support is formed in the side wall of the sealing base;
the sealing base is fixed on the bottom plate of the frame through bolts, and the bottom plate of the frame is fixed with the 8-shaped sleeve through bolts.
8. The anti-blocking self-cleaning device for the dust-containing pyrolysis oil gas outlet according to claim 1, wherein the pyrolysis oil gas rapid cooling section comprises a cooling chamber, two nozzle mounting openings which incline downwards are arranged on the cooling chamber, a nozzle group which faces the cooling chamber is arranged on each nozzle mounting opening, a cooling medium interface is arranged at the tail part of the nozzle group, and an drift diameter ball valve is arranged at the middle part of the nozzle group.
9. The anti-blocking self-cleaning device for the dust-containing pyrolysis oil gas outlet according to claim 1, wherein a heat preservation layer is arranged outside the 8-shaped sleeve.
10. The anti-blocking self-cleaning device for the dust-containing pyrolysis oil gas outlet, according to claim 1, is characterized in that the airflow resistance of a self-cleaning double-screw system is judged according to the pressure difference between a pyrolysis oil gas outlet pressure measuring point and a pyrolysis oil gas cooling chamber pressure measuring point, and the start and stop or the rotating speed of a shaftless double screw are controlled; specifically, the design value of the pressure difference is 100 Pa-150 Pa, and if the pressure difference is more than 300Pa, the method shows that powder is deposited in the self-cleaning double-screw system, and the rotation speed of the shaftless double-screw is improved to 5r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211658320.7A CN115851294B (en) | 2022-12-22 | 2022-12-22 | Dustproof pyrolysis oil gas outlet anti-blocking self-cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211658320.7A CN115851294B (en) | 2022-12-22 | 2022-12-22 | Dustproof pyrolysis oil gas outlet anti-blocking self-cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115851294A CN115851294A (en) | 2023-03-28 |
| CN115851294B true CN115851294B (en) | 2023-07-11 |
Family
ID=85653928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211658320.7A Active CN115851294B (en) | 2022-12-22 | 2022-12-22 | Dustproof pyrolysis oil gas outlet anti-blocking self-cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115851294B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1067171A2 (en) * | 1996-09-27 | 2001-01-10 | Alberta Oil Sands Technology, and Research Authority | Process for removing contaminants from oil |
| CN1740635A (en) * | 2005-09-22 | 2006-03-01 | 浙江大学 | Pulsating fluid-bed combustion apparatus |
| WO2014167141A1 (en) * | 2013-04-12 | 2014-10-16 | 1 Atr Engineering Oü | Screw conveyor reactor and use for pyrolysis or torrefaction of biomass |
| CN203960133U (en) * | 2014-06-09 | 2014-11-26 | 广西腾博再生能源有限公司 | Waste rubber cracking production line |
| CN104236471A (en) * | 2014-10-09 | 2014-12-24 | 中国石油化工股份有限公司 | Y-type double-FBG (fiber Bragg grating) optical fiber vibration sensor for online monitoring hydraulic decoking of coking tower |
| CN105802648A (en) * | 2016-05-26 | 2016-07-27 | 北京神雾环境能源科技集团股份有限公司 | Quick pyrolysis system for pulverized coal |
| CN107245345A (en) * | 2017-06-26 | 2017-10-13 | 北京神雾电力科技有限公司 | Pyrolytic reaction system and pyrolytic reaction method |
| CN206709108U (en) * | 2017-03-31 | 2017-12-05 | 浙江东都节能技术股份有限公司 | A kind of shaftless feed system of biomass boiler |
| CN109385310A (en) * | 2018-11-28 | 2019-02-26 | 陕西润中清洁能源有限公司 | A kind of gasification installation dragveyer pulp water vibration separate equipment |
| CN110027854A (en) * | 2019-05-13 | 2019-07-19 | 江苏三辉环保科技有限公司 | A kind of Shaftless screw conveyor |
| KR20210073179A (en) * | 2019-12-10 | 2021-06-18 | 주식회사 삼주공업 | Cracking furnace for waste synthetic resin emulsion device |
| CN114308988A (en) * | 2022-01-12 | 2022-04-12 | 南京工业大学 | Skid-mounted medical waste isothermal pyrolysis treatment system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4305350A1 (en) * | 2021-03-08 | 2024-01-17 | Extiel AP, LLC | Device for pyrolysis of carbonaceous materials and method |
-
2022
- 2022-12-22 CN CN202211658320.7A patent/CN115851294B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1067171A2 (en) * | 1996-09-27 | 2001-01-10 | Alberta Oil Sands Technology, and Research Authority | Process for removing contaminants from oil |
| CN1740635A (en) * | 2005-09-22 | 2006-03-01 | 浙江大学 | Pulsating fluid-bed combustion apparatus |
| WO2014167141A1 (en) * | 2013-04-12 | 2014-10-16 | 1 Atr Engineering Oü | Screw conveyor reactor and use for pyrolysis or torrefaction of biomass |
| CN203960133U (en) * | 2014-06-09 | 2014-11-26 | 广西腾博再生能源有限公司 | Waste rubber cracking production line |
| CN104236471A (en) * | 2014-10-09 | 2014-12-24 | 中国石油化工股份有限公司 | Y-type double-FBG (fiber Bragg grating) optical fiber vibration sensor for online monitoring hydraulic decoking of coking tower |
| CN105802648A (en) * | 2016-05-26 | 2016-07-27 | 北京神雾环境能源科技集团股份有限公司 | Quick pyrolysis system for pulverized coal |
| CN206709108U (en) * | 2017-03-31 | 2017-12-05 | 浙江东都节能技术股份有限公司 | A kind of shaftless feed system of biomass boiler |
| CN107245345A (en) * | 2017-06-26 | 2017-10-13 | 北京神雾电力科技有限公司 | Pyrolytic reaction system and pyrolytic reaction method |
| CN109385310A (en) * | 2018-11-28 | 2019-02-26 | 陕西润中清洁能源有限公司 | A kind of gasification installation dragveyer pulp water vibration separate equipment |
| CN110027854A (en) * | 2019-05-13 | 2019-07-19 | 江苏三辉环保科技有限公司 | A kind of Shaftless screw conveyor |
| KR20210073179A (en) * | 2019-12-10 | 2021-06-18 | 주식회사 삼주공업 | Cracking furnace for waste synthetic resin emulsion device |
| CN114308988A (en) * | 2022-01-12 | 2022-04-12 | 南京工业大学 | Skid-mounted medical waste isothermal pyrolysis treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115851294A (en) | 2023-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1131432A (en) | Rubbish conveyor | |
| CN115851294B (en) | Dustproof pyrolysis oil gas outlet anti-blocking self-cleaning device | |
| CN204779473U (en) | Prevent pyrolysis of coal of dust and carry matter rotary furnace | |
| CN107974302B (en) | Gasification reduction high-temperature oil gas dedusting cooling coke-reducing and refining separation device | |
| CN213387827U (en) | Raw material diversified active coke internal heating type rotary furnace | |
| CN113698964A (en) | Fluidized bed and biomass reaction furnace | |
| CN212404013U (en) | Slag discharging device with cylinder extrusion structure and pyrolysis system comprising same | |
| CN110360585B (en) | Circulating fluidized bed boiler combustion chamber assists deashing structure | |
| CN101538484B (en) | Internal combustion heating rotation conical biomass gasification furnace | |
| CN109082304B (en) | Automatic control household garbage pyrolysis gasifier | |
| CN111253955A (en) | Slag discharging device with cylinder extrusion structure and pyrolysis system comprising same | |
| CN109536188A (en) | A kind of anti-blocking gas operated device of automatically cleaning for pulverized coal pyrolysis rotary furnace | |
| CN208346107U (en) | A kind of cooling tar reduction of gasification reduction high-temperature oil gas dedusting and refining separator | |
| CN208266118U (en) | A kind of cracked residue continuous output device of scrap rubber or waste plastics | |
| CN216471098U (en) | Pyrolysis oil sludge unloading device | |
| CN213866063U (en) | Clean feeding of utilizing of coal ash handling equipment that gives vent to anger | |
| CN208313039U (en) | A kind of VN alloy ball sintering kiln | |
| CN108373929A (en) | The continuous output device of cracked residue and method of a kind of scrap rubber or waste plastics | |
| CN219243591U (en) | Ash discharging device of household garbage pyrolysis furnace | |
| CN111425860A (en) | Domestic waste handles pyrolysis gasifier dross removal mechanism | |
| CN201292340Y (en) | Coal-charging, coal-discharging three-in-one smoke collection purifier of coke burner | |
| CN107699259B (en) | Thermal cracking equipment for preparing biomass energy particles after domestic garbage sludge carbonization | |
| CN219342068U (en) | Device for cleaning small coke oven flue | |
| CN220766886U (en) | Harmless treatment system for waste rubber and waste plastic | |
| CN209508149U (en) | The anti-blocking gas operated device of automatically cleaning for pulverized coal pyrolysis rotary furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |