CN108277024A

CN108277024A - A kind of online coke cleaning apparatus of tedge and its coke cleaning and intensified heat transfer method

Info

Publication number: CN108277024A
Application number: CN201710005891.3A
Authority: CN
Inventors: 葛霖
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-01-05
Filing date: 2017-01-05
Publication date: 2018-07-13

Abstract

The present invention gives a kind of online coke cleaning apparatus of tedge and its coke cleaning and intensified heat transfer method in coke oven production operational process, the device can remove the calculus ink for rising tube wall in production process at any time, the coking bulky grain that graphite is commonly called as is set to fall into coke oven, little particle is taken away with raw coke oven gas stream, realizes the online coke cleaning of coke oven coke oven uprising tube production process；When being equipped with waste-heat recovery device in tedge, online coke cleaning can effectively reduce the thermal resistance of waste-heat recovery device and raw coke oven gas in tedge in tedge, realize augmentation of heat transfer, burnt device gusset online with it, which will be scraped, is set as flow spoiler simultaneously, scrape rotation of the burnt device in tedge, raw coke oven gas fluid turbulence degree can be increased, heat transfer power is improved, realize augmentation of heat transfer.

Description

A kind of online coke cleaning apparatus of tedge and its coke cleaning and intensified heat transfer method

Technical field

It is to be used for coking of coal stove the present invention relates to a kind of online coke cleaning apparatus of tedge and its coke cleaning and intensified heat transfer method The online coke cleaning of tedge and waste heat recovery process augmentation of heat transfer, belong to coke oven production technique and its field of energy-saving technology.

Background technology

Currently, coke oven coke oven uprising tube coke cleaning is to open tedge lid in tedge not production process, carry out artificial coke cleaning, Coke cleaning is purged using high-pressure blast or mechanical removal method, and working environment is severe, labor intensity is high, coke cleaning is easy to injure in tedge Wall.

The high temperature raw coke oven gas that coke oven destructive distillation goes out, into tedge after by three-way pipe enter bridge tube, spray and follow at bridge tube Ring ammonium hydroxide is in direct contact with raw coke oven gas, and cyclic ammonia water largely vaporizes, and gas collection is entered after so that raw coke oven gas is drastically cooled to about 80 DEG C Pipe.Raw coke oven gas has coking phenomenon in tedge, and coking influences normal production, increases operative employee's labor intensity, deteriorates operation Work work situation reduces heat transfer efficiency if there is waste heat recovery then influences raw coke oven gas waste heat recovery heat transfer coefficient and heat transfer power. The heat that the raw coke oven gas that coke oven destructive distillation goes out is taken out of is equivalent to 33 ﹪ of gross energy or so of coking by coke oven consumption, and raw coke oven gas is certainly The power that 700~850 DEG C of rapid coolings also consume a large amount of ammonium hydroxide and cyclic ammonia water to 80 DEG C.So raw coke oven gas waste heat Using the emerging field as current energy-saving and emission-reduction, the patented technology Fang Xing of waste heat recovery is currently carried out in coke oven coke oven uprising tube It does not end.Patent（CN201510391848.6）A kind of coke oven coke oven uprising tube and the method using its recycling raw coke oven gas heat, give By introducing the method that disturbing flow device carries out turbulent flow reinforced heat exchange in fluid forces tedge outside tedge, by more outside tedge Point drainage body enter blown in tedge be suspended from tedge top comprising hanging stick fixed frame, select bar and be fixed on the hanging stick At least one spoiler, that is to say, that it needs to drive by outside fluid if choosing about the set of system at the top of tedge, Available outside fluid is raw coke oven gas or ammonium hydroxide on existing apparatus, and the system is driven to have clearly a need for higher pressure air-flow, raw coke oven gas Pressurization problem is relatively difficult to resolve certainly, is risen the drastically decline that can cause raw gas temperature in tedge using ammonium hydroxide injection, is brought very high Coking risk.In fact, the critical issue for influencing tedge waste heat recovery is heat transfer coefficient, rises inside pipe wall calculus ink and be commonly called as Coking, the raw coke oven gas that coke oven destructive distillation goes out carry ash content, and ash content can also hang over rising inside pipe wall, can especially hang over the calculus ink of inner wall On layer, this can aggravate the development of raw coke oven gas coking tendency, make to extend in the upward riser of coking, that coking extends the result is that being easier Dust leads to vicious circle, causes the narrow of raw coke oven gas circulation passage, influences normally to produce raw coke oven gas outflow, gives the life of coke oven Production brings security risk, the coke cleaning work for bringing a large amount of operating environments severe and very difficult to the maintenance of normal increase in production pipe Make, the recuperation of heat if tedge is had a surplus can then bring bigger thermal resistance to waste heat recovery, seriously affect the recycling of waste heat.

That is, coking is to influence the root problem of tedge waste heat recovery.

Invention content

The present invention is exactly the coking problem to solve in tedge production process, it is proposed that online coke cleaning in production process The effective ways of device and its coke cleaning and enhanced heat exchange.Its concrete scheme is a kind of online coke cleaning apparatus of tedge, including is risen Pipe（1）, scrape burnt device（2）, link gusset（3）, hold-down support（4）, fixing bracket（5）, power steering gear（6）, central shaft （7）, transmission shaft（8）, sealing device（9）, motor（10）, gusset（11）, ascending pipe support（12）, heat insulation layer（13）And cunning Dynamic support device（14）；The tedge（1）It is characterized in that branch pipe deviation three-way pipe, riser tube socket is connected under long end flanges, Tube socket is inserted into coal oven dithio-gas outlet, and branch pipe flanged joint bridge tube connects riser lid, is equipped in tedge thereon in end flanges Heat insulation layer（13）；It is described to scrape burnt device（2）It is characterized in that scraping burnt device by linking gusset（3）It is fixed on central shaft（7）On, in Mandrel（7）Engagement type embedded power steering gear（6）It is interior and hang on power steering gear（6）Below, and stretch into tedge In inclined threeway pipe range end pipe, scrapes burnt device and cooperatively form kinematic pair with tedge inner wall inner surface clearance-type；The fixing bracket（5） It is characterized in that equipped with the bearing rib on two or more tedge radiuses, the bearing rib on two or more tedge radiuses At center and power steering gear（6）It is fixed, fixing bracket（5）Coordinate and snap-in is fixed on corresponding hold-down support（4）It is interior, Gu Fixed rack（5）It can be at any time from hold-down support（4）Interior extraction, two or more hold-down supports（4）It is fixed on tedge（1）Outer wall It is interior；The transmission shaft（8）It is characterized in that being stretched into tedge and engagement type embedded power steering gear across tube wall is risen（6） It is interior, it is being equipped with sealing device at rising tube wall（9）, sealing device（9）And transmission shaft（8）Can from across rising tube wall Extract detachable, transmission shaft out in place（8）Outside connects motor（10）；The tedge（1）It is characterized in that the heat preservation set in tedge Thermal insulation layer（13）Equipped with waste-heat recovery device, waste-heat recovery device is placed in tedge（1）Long end pipe in；It is described to scrape burnt device（2）、 Link gusset（3）It is characterized in that two schemes：Scheme one is to scrape burnt device（2）With link gusset（3）It is combined into one and is set as a spiral shell Rotating plate is fixed on central shaft（7）On；Scheme is second is that link gusset（3）It is designed as multiple fluid impellers, external scrape connects in burnt device Mandrel（7）；The central shaft 7 is it is characterized in that its lower end is equipped with sliding support（14）.

This programme additionally provides a kind of online coke cleaning of tedge and strengthened heat exchange method method, is equipped in tedge and scrapes burnt device dress It sets, the motor rotation being set to outside tedge, power steering gear imparts power to central shaft, and central shaft drive is scraped burnt device and turned It is dynamic, the graphite coke just generated on inside pipe wall will be risen in production process and scraped, the graphite coke bulky grain scraped falls into coke oven, is small Particle is then taken away by raw coke oven gas, realizes the online coke cleaning of tedge；It is inclined by increasing if being equipped with waste-heat recovery device in tedge Position threeway tedge effective length, increases effective waste heat recovery area, then augmentation of heat transfer can be achieved；Scraping burnt device is integrally One spiral plate rotated scrapes burnt device connecting rib as impeller, scrapes burnt device operation rotation, scrapes the rotation of burnt device in the same of coke cleaning When can destroy raw coke oven gas and flow out the boundary layer that moves along inside pipe wall is risen, improve high raw coke oven gas along tedge and filled with waste heat recovery The heat transfer coefficient set, while impeller or spiral plate scrape burnt device rotary motion and central high temperature fluid can be pushed to be flowed to outer rim, Increase the turbulence level of raw coke oven gas in tedge pipe, improves tedge pipe inward flange fluid temperature (F.T.), it is remaining in tedge to improve The heat transfer power of heat reclamation device and raw coke oven gas in pipe, realizes augmentation of heat transfer.

Remarkable advantage

Online coke cleaning reduces tedge and safeguards intensity, extends the non-maintaining time, raise labour productivity；

Online coke cleaning destroys fluid heat transferring boundary layer and improves heat transfer coefficient, increase raw coke oven gas fluid turbulence degree, improves heat transfer Power improves utilization rate of waste heat；

The security risk of operation is eliminated, coke oven device operating cost is reduced.

Description of the drawings

1, tedge in figure, 2, scrape burnt device, 3, link gusset, 4, hold-down support, 5, fixing bracket, 6, power steering apparatus It sets, 7, central shaft, 8, transmission shaft, 9, sealing device, 10, motor, 11, gusset, 12, ascending pipe support, 13, heat insulation layer, 14, sliding support.

Specific implementation

As shown in Figure 1, a kind of online coke cleaning apparatus of tedge, including tedge（1）, scrape burnt device（2）, link gusset（3）, it is fixed Bearing（4）, fixing bracket（5）, power steering gear（6）, central shaft（7）, transmission shaft（8）, sealing device（9）, motor（10）、 Gusset（11）, ascending pipe support（12）, heat insulation layer（13）With sliding support device（14）, tedge is interior to be equipped with heat insulation layer （13）, be externally provided with gusset（11）Strengthen tee branch intensity to realize, tedge is externally provided with ascending pipe support（12）It is used to support Tedge.

As shown in Figure 1, the tedge of the technical program design（1）It is branch pipe deviation three-way pipe, is connected under long end flanges Riser tube socket, tube socket are inserted into coal oven dithio-gas outlet, and branch pipe flanged joint bridge tube connects riser lid thereon in end flanges, on Heat insulation layer is equipped in riser（13）, it is thus the structure for eliminating conventional tedge and in addition adding threeway, increases tedge （1）The length of branch pipe deviation three-way pipe long tube, increases effective waste heat recovery area, reduce the threeway of tedge installation process with The process of tedge assembly saves labor intensity, saves a pair of of flange and its sealing surface, eliminates the security risk of leakage, such as Heat reclamation device of having a surplus in tedge is increased effectively by increasing effective heat exchange length of tedge deviation three-way pipe long tube Waste heat recovery area, realize augmentation of heat transfer；Tedge（1）Burnt device is scraped in interior setting（2）, scrape burnt device and pass through link more than two Gusset（3）It is fixed on central shaft（7）On, central shaft（7）Engagement type embedded power steering gear（6）And hang extend downwardly into it is supreme It in the inclined threeway pipe range end pipe of riser, scrapes burnt device and tedge inner wall inner surface clearance-type and cooperatively forms kinematic pair, when operation scrapes coke Device is cooperatively formed along tedge inner wall inner surface clearance-type and is moved；Fixing bracket（5）Equipped on two or more tedge radiuses Bearing rib, at the bearing rib center on two or more tedge radiuses and power steering gear（6）It is fixed, fixed branch Frame（5）It is fixed on corresponding hold-down support using inverted trapezoidal structure cooperation is snap-in（4）Interior, inverted trapezoidal structure can be with automatic centering With self-tightening, fixing bracket（5）It can be at any time from hold-down support（4）Interior extraction, entirely to scrape burnt device and its support device extraction Tedge is safeguarded and is repaired, two or more hold-down supports（4）It is fixed on tedge（1）In outer wall, this fixation is preferred It is welded and fixed；Transmission shaft（8）Modular is stretched into tedge across rising tube wall and engagement type embedded power steering gear（6） It is interior, it is being equipped with sealing device at rising tube wall（9）, sealing device（9）And transmission shaft（8）Can from across rising tube wall Place's extraction, sealing device（9）And tedge（1）Outer wall static-sealing type fix, transmission shaft（8）Outside connects motor（10）It obtains Power.

Currently, coke oven is energy-saving has become inevitable choice, and the power save mode of tedge is the heat preservation in tedge Thermal insulation layer（13）Equipped with waste-heat recovery device, waste-heat recovery device is completely placed in tedge（1）Long end pipe in；Scrape burnt device（2）With Link gusset（3）Design two schemes may be used：Scheme one is to scrape burnt device（2）With link gusset（3）It is combined into one and is set as One spiral plate is fixed on central shaft（7）On, it is equivalent to the interpolation enhanced heat exchange part of heat exchanger；Scheme is second is that link gusset（3） Multiple fluid impellers are designed as, external scrape in burnt device connects central shaft（7）, impeller rotation then can be by central part fluid in pipe not It is disconnected to push at outer diameter.It is equipped in the tedge and scrapes burnt device device motor（10）Rotation, power steering gear（6）Power is passed Pass central shaft（7）, central shaft, which drives, scrapes burnt device rotation, can will rise the graphite coke that inside pipe wall has just generated and scrape, and scrape Graphite coke bulky grain is fallen into coke oven, little particle is then taken away by raw coke oven gas air-flow, realizes the online coke cleaning of tedge；To prevent from greatly enhancing Degree fixes the central shaft by scraping burnt device（7）Amount of deflection is too big, causes to scrape or injure to take thermal, and sliding branch is equipped in its lower end Support arrangement（14）.

This programme additionally provides a kind of online coke cleaning of tedge and strengthened heat exchange method method, is equipped in tedge and scrapes burnt device Device, the motor rotation being set to outside tedge, power steering gear impart power to central shaft, and burnt device is scraped in central shaft drive Rotation is scraped the graphite coke that inside pipe wall has just generated is risen in production process, and the graphite coke bulky grain scraped falls into coke oven, is small Particle is then taken away by raw coke oven gas air-flow, realizes the online coke cleaning of tedge；If being equipped with waste-heat recovery device in tedge, pass through increasing In addition the length of riser deviation three-way pipe long tube, increases effective waste heat recovery area, realizes augmentation of heat transfer；Tedge exists Line coke cleaning removes the coking layer for rising pipe internal surface, reduces thermoresistance layer, realize augmentation of heat transfer at any time；It is whole to scrape burnt device It is the spiral plate of rotation or to scrape burnt device connecting rib be impeller, scrapes the operation rotation of burnt device, scrape the rotation of burnt device in coke cleaning Raw coke oven gas can be destroyed simultaneously and flows out the boundary layer moved along tedge, improve raw coke oven gas and waste-heat recovery device in tedge Heat transfer coefficient, while impeller or spiral plate scrape burnt device rotary motion can push central high temperature fluid to outer rim flow, increase In addition in riser pipe raw coke oven gas turbulence level, improve tedge pipe inward flange fluid temperature (F.T.), to improve waste heat in tedge The heat transfer power of retracting device and raw coke oven gas in pipe, also achieves augmentation of heat transfer.

Claims

1. a kind of online coke cleaning apparatus of tedge, including tedge 1, scrape burnt device 2, link gusset 3, hold-down support 4, fixing bracket 5, power steering gear 6, central shaft 7, transmission shaft 8, sealing device 9, motor 10, gusset 11, bearing 12, heat insulation layer 13 With；The tedge 1 connects riser tube socket, it is waste that tube socket is inserted into coke oven it is characterized in that branch pipe deviation three-way pipe under long end flanges Gas exit, branch pipe flanged joint bridge tube connect riser lid, 13 He of heat insulation layer are equipped in tedge thereon in end flanges Sliding support 14；It is described scrape burnt device 2 it is characterized in that scrape burnt device by link gusset 3 be fixed on central shaft 7, central shaft 7 It in engagement type embedded power steering gear 6 and hangs below power steering gear 6, stretches into the inclined threeway pipe range end pipe of tedge It is interior, it scrapes burnt device and cooperatively forms kinematic pair with tedge inner wall inner surface clearance-type；The fixing bracket 5 it is characterized in that setting there are two Or the bearing rib on multiple tedge radiuses, at the bearing rib center on two or more tedge radiuses and electronic-controlled power steering Device 6 fix, fixing bracket 5 coordinate it is snap-in be fixed in corresponding hold-down support 4, fixing bracket 5 can be at any time from fixation It is extracted in bearing 4, two or more hold-down supports 4 are fixed in 1 outer wall of tedge；The transmission shaft 8 is it is characterized in that across upper Riser wall stretches into tedge and in engagement type embedded power steering gear 6, and sealing device 9 is being equipped at rising tube wall, Sealing device 9 and transmission shaft 8 can from across rising tube wall from extraction it is detachable, 8 outside of transmission shaft connects motor 10.

2. such as a kind of online coke cleaning apparatus of tedge of claim 1, the tedge 1 is it is characterized in that insulation in tedge In layer 13, it is equipped with waste-heat recovery device, waste-heat recovery device is completely placed in the long end pipe of tedge 1.

3. such as a kind of online coke cleaning apparatus of tedge of claim 1, burnt device 2, the link gusset 3 scraped is it is characterized in that two sides Case：Scheme one is to scrape burnt device 2 and link gusset 3 is combined into one and is set as a spiral plate and is fixed on central shaft 7；Scheme is second is that chain It connects gusset 3 and is designed as multiple fluid impellers, external scrape connects central shaft 7 in burnt device.

4. such as a kind of online coke cleaning apparatus of tedge of claim 1, the central shaft 7 is it is characterized in that its lower end is equipped with sliding support Device 14.

5. a kind of online coke cleaning of tedge and intensified heat transfer method, the online coke cleaning method is to be equipped with to scrape burnt device dress in tedge It sets, the motor rotation being set to outside tedge, power steering gear imparts power to central shaft, scrapes burnt device and rises inside pipe wall Internal surface gaps formula cooperatively forms kinematic pair, and burnt device rotation is scraped in central shaft drive, can will rise the stone just generated on inside pipe wall Black coke scrapes, and the graphite coke bulky grain scraped is fallen into coke oven, little particle is then taken away by raw coke oven gas, realizes that tedge is clear online It is burnt；One of the online coke cleaning of tedge and intensified heat transfer method are, if being equipped with waste-heat recovery device, tedge in tedge Online coke cleaning can then reduce the coking layer for rising pipe internal surface, reduce thermoresistance layer, realize augmentation of heat transfer；The tedge Online coke cleaning and intensified heat transfer method second is that, if being equipped with waste-heat recovery device in tedge, burnt device generally one is scraped in design The spiral plate of a rotation scrapes burnt device connecting rib as impeller, scrapes burnt device operation rotation, scrapes the rotation of burnt device while coke cleaning Raw coke oven gas can be destroyed and flow out the boundary layer moved along tedge, improve the biography of raw coke oven gas and waste-heat recovery device in tedge Hot coefficient, while impeller or spiral plate scrape burnt device rotary motion and central high temperature fluid can be pushed to be flowed to outer rim, in increase The turbulence level of raw coke oven gas in riser pipe improves tedge pipe inward flange fluid temperature (F.T.), that is, improves waste heat recovery in tedge The heat transfer power of device and raw coke oven gas in pipe, realizes augmentation of heat transfer.