CN119059113B - Coke powder receiving device, coke drum system and method for receiving and removing coke powder through coke drum system - Google Patents
Coke powder receiving device, coke drum system and method for receiving and removing coke powder through coke drum system Download PDFInfo
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- CN119059113B CN119059113B CN202411271099.9A CN202411271099A CN119059113B CN 119059113 B CN119059113 B CN 119059113B CN 202411271099 A CN202411271099 A CN 202411271099A CN 119059113 B CN119059113 B CN 119059113B
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- box body
- coke powder
- receiving device
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- 239000000571 coke Substances 0.000 title claims abstract description 134
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000003546 flue gas Substances 0.000 claims abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims description 25
- 238000004140 cleaning Methods 0.000 claims description 14
- 238000012423 maintenance Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims 3
- 238000004939 coking Methods 0.000 claims 2
- 239000000779 smoke Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 8
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- 238000005235 decoking Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000004230 steam cracking Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/02—Large containers rigid
- B65D88/022—Large containers rigid in multiple arrangement, e.g. stackable, nestable, connected or joined together side-by-side
- B65D88/025—Nestable containers or nestable container parts forming a receptacle when one part is inverted upon the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/004—Contents retaining means
- B65D90/0066—Partition walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/12—Supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/46—Arrangements for carrying off, or preventing the formation of electrostatic charges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
- C10G9/16—Preventing or removing incrustation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Coke Industry (AREA)
Abstract
本发明涉及一种焦粉接收设备、烧焦罐系统以及通过烧焦罐系统接收并清除焦粉的方法。焦粉接收设备包括：箱体和在箱体内可移动地设置在接焦口下方的接收容器；箱体设置有至少一个箱体门，在焦粉接收设备处于非焦粉清运期间，所述箱体门处于关闭状态，使得所述箱体能够以封闭状态通过所述接收容器接收来自烧焦罐的烧焦烟气中的焦粉；并且在所述箱体门处于打开状态时，所述接收容器能够从所述箱体内被移出，以清运所述接收容器中的焦粉。采用根据本发明的焦粉接收设备和烧焦罐系统，能够实现无水喷淋，有效防止水对容器内壁的腐蚀，消除因水蒸气弥散而导致的现场人员工作安全隐患，保护人员免于热焦炭暴露风险。
The present invention relates to a coke powder receiving device, a coke can system, and a method for receiving and removing coke powder through a coke can system. The coke powder receiving device comprises: a box body and a receiving container movably arranged below a coke receiving port in the box body; the box body is provided with at least one box body door, and when the coke powder receiving device is in a non-coke powder removal period, the box body door is in a closed state, so that the box body can receive coke powder in the coke flue gas from the coke can through the receiving container in a closed state; and when the box body door is in an open state, the receiving container can be moved out of the box body to remove the coke powder in the receiving container. By using the coke powder receiving device and the coke can system according to the present invention, waterless spraying can be achieved, effectively preventing water from corroding the inner wall of the container, eliminating the hidden safety hazards of on-site personnel caused by water vapor diffusion, and protecting personnel from the risk of exposure to hot coke.
Description
Technical Field
The invention relates to the technical field of cracking furnaces, in particular to a coke powder receiving device, a coke burning tank system and a method for receiving and removing coke powder through the coke burning tank system.
Background
Steam cracking furnaces form coke in radiant tubes during normal operation. To improve the performance of pyrolysis furnaces and extend the operating cycle, it is often necessary to periodically purge such coke through an operation known as steam air decoking. A large amount of burnt fume (including steam, small-particle-size coke powder, etc.) is generated in the decoking process. Most of the existing coke cleaning tanks of the cracking furnace adopt cyclone separation technology. The coke is sent into the coke burning tank from the radiant tube, heavy coke is discharged into the coke powder receiving equipment from the bottom of the coke burning tank through cyclone separation, and no coke powder is returned to the hearth from the top. Over time, coke breeze may accumulate in the coke breeze receiving apparatus, thus requiring periodic cleaning of the coke breeze in the coke breeze receiving apparatus. However, removal of the coke breeze from the coke breeze receiving apparatus is challenging because the hot coke needs to be properly managed to avoid injury to operators during the cleaning of the coke breeze and adverse environmental impact.
The traditional coke powder receiving equipment known in the prior art mostly adopts an open water spraying coke receiving mode or an underground water pit water seal coke receiving mode. However, the coke receiving mode of water spraying is easy to corrode the inner wall of the receiving container, so that leakage is caused, and the diffusion of water vapor also brings potential safety hazards to operators on site. Such open coke breeze receiving apparatus presents operators with a risk of hot coke exposure. In addition, although the coke receiving mode of the underground water pit water seal solves the problems of water vapor diffusion, inner wall corrosion and the like in the coke receiving mode of water spraying, the mode requires operators to enter a limited space for coke cleaning operation, and has great operation safety hidden trouble.
Disclosure of Invention
The present invention has been made in view of the above and/or other problems occurring in the prior art, and it is an object of the present invention to provide an improved coke breeze receiving apparatus and burn pot system.
According to a first aspect of the invention, the invention relates to a coke powder receiving device, comprising a box body, a coke receiving opening is arranged at the top of the box body, the coke receiving opening is used for communicating a coke pouring opening of a coke burning tank with the interior of the box body, and a receiving container movably arranged below the coke receiving opening in the box body, wherein the box body is provided with at least one box body door, the box body door is in a closed state during non-coke powder clearing of the coke powder receiving device, so that the box body can receive coke powder in the coke burning flue gas from the coke burning tank through the receiving container in a closed state, and the receiving container can be removed from the box body when the box body door is in an open state so as to clear coke powder in the receiving container.
As one embodiment, a filter cloth baffle is arranged in the box body around the connector Jiao Kou and the receiving container so as to provide a coke powder receiving space and a steam condensing space which are separated from each other, wherein the filter cloth baffle is configured so that coke powder in the coke burning flue gas can be intercepted in the coke powder receiving space by the filter cloth baffle and falls into the receiving container, and steam in the coke burning flue gas can enter into the steam condensing space through the filter cloth baffle to be condensed into condensed water and fall into the bottom of the box body.
As one embodiment, a clamping structure is arranged on the inner side wall of the top of the box body around the coke receiving opening and used for tightly clamping the filter cloth baffle curtain.
As an embodiment, the clamping structure comprises two opposite circumferential clamping portions spaced apart from each other to define an annular gap into which the filter cloth curtain is embedded and held stationary by a plurality of threaded fasteners.
As one embodiment, a drain is provided at the bottom of one side of the tank to facilitate drainage of condensed water accumulated at the bottom of the tank, and/or a purge is provided at the bottom of the other side of the tank to facilitate purging of residual debris within the tank.
As an embodiment, the bottom surface of the drain outlet and/or the bottom surface of the cleaning outlet is flush with the bottom surface of the tank.
As an embodiment, the bottom of the receiving container is provided with a plurality of support legs, the height of which is designed to be higher than the threshold height of the case.
As one implementation mode, a plurality of stepping steps which are spaced from each other along the vertical direction are arranged on at least one side of the box body, so that an operator can conveniently approach the coke receiving opening along the stepping steps, and a safety handrail which is used for being gripped by the operator during installation and maintenance is arranged on at least one side of the box body and/or the top of the box body.
As one embodiment, an electrostatic grounding plate is provided at the bottom of at least one side of the case.
According to a second aspect of the invention, it relates to a burn pot system comprising a burn pot and a coke powder receiving apparatus as described above.
As one embodiment, the coke pouring opening of the coke burning tank is fixedly connected with the coke receiving opening of the coke powder receiving device through a metal hose.
According to a third aspect of the present invention, it relates to a method of receiving and cleaning coke breeze by means of a coke drum system as described above, said method comprising the steps of:
fixedly connecting a coke receiving port of the coke powder receiving equipment with a coke pouring port of the coke burning tank;
during the steam air scorching, placing a receiving container in the box body below the coke receiving opening, and closing the box body door;
opening a valve above the coke pouring opening so that coke powder in the coke burning flue gas falls into the receiving container from the coke pouring opening through the coke receiving opening;
After the steam air is burnt, closing a valve above the coke pouring opening;
opening the door of the cabinet to remove the receiving container when the temperature of the cabinet is below a predetermined threshold, and
After the coke powder in the receiving container is processed, the receiving container is moved back to the box body, and the coke cleaning is finished.
As an embodiment, the method further comprises opening a valve of a drain during steam air burn so that condensed water formed by steam in the burned flue gas accumulated at the bottom of the tank can be discharged to a lagoon.
As an embodiment, the predetermined threshold is 40 ℃, the method further comprising measuring the temperature of the tank by means of a temperature sensing device.
The coke powder receiving equipment and the coke burning tank system can realize anhydrous spraying, effectively prevent the inner wall of the receiving container from being corroded by spray water, eliminate the potential safety hazard to site personnel caused by the dispersion of water vapor in air when the cracking furnace is in coke cleaning, and avoid the risk of exposing hot coke of operators because the whole coke powder receiving equipment is in a closed state during working (such as during the coke powder receiving), so the coke powder receiving equipment is safer and cleaner than the traditional open water injection coke receiving equipment.
Drawings
The above and other features and advantages of the present invention will become more readily appreciated from the following description with reference to the accompanying drawings, in which:
fig. 1 is a front view of a coke breeze receiving apparatus according to an embodiment of the present invention;
fig. 2 is a side view of a coke breeze receiving apparatus according to an embodiment of the present invention;
Fig. 3 is a top view of a coke breeze receiving apparatus according to an embodiment of the present invention, and
FIG. 4 is a flow chart of a method of receiving and removing coke breeze by a burn pot system according to an embodiment of the present invention.
All the figures are schematic and not necessarily to scale, and they show only those parts which are necessary in order to elucidate the invention, the other parts being omitted or merely mentioned. That is, the present invention may include other components in addition to those shown in the drawings.
Detailed Description
Embodiments of the present invention are described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding and enabling description of the invention to one skilled in the art. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. Furthermore, it should be understood that the invention is not limited to specific described embodiments. Rather, any combination of the features and elements described below is contemplated to implement the invention, whether or not they relate to different embodiments. Thus, the following aspects, features, embodiments and advantages are merely illustrative and should not be considered elements or limitations of the claims except where explicitly set out in a claim. The terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components other than the listed elements/components.
As mentioned in the background art, the water spray type coke powder receiving device is easy to corrode the inner wall of the receiving container due to the need of spraying water, so that leakage is caused, and due to the open structural design, operators are exposed to hot coke, while the underground water pit water seal type coke powder receiving device requires the operators to enter a limited space for decoking operation, and also has operation safety hazards. Therefore, the invention provides improved coke powder receiving equipment, so that the hot coke exposure risk of operators is reduced, and the field operation environment is effectively protected.
Fig. 1 to 3 illustrate a coke breeze receiving apparatus according to an exemplary embodiment of the present invention. Specifically, referring to fig. 1, the coke powder receiving apparatus 1 includes a housing 11 and a movable receiving container 12 (shown with a chain line in fig. 1) located inside the housing 11. At the top of the case 11, a coke receiving port 111 is provided, and a receiving container 12 is provided below the coke receiving port 111, the coke receiving port 111 being intended to be connected with a coke pouring port 2 of a coke oven (not shown in the drawings) by, for example, a metal hose such as a wire hose, so as to communicate the coke pouring port 2 of the coke oven with the inside of the case 11, thereby allowing receiving of coke powder from the coke pouring port 2 into the case 11. For example, the box 11 may be secured to the building by anchor bolts 13, while the receiving container 12 may be moved into or out of the box 11 by a carrying device such as a forklift. In order to strengthen the structural strength of the case 11, a reinforcing structure 16 such as a reinforcing angle iron (see fig. 2) may be further provided on the case 11.
Unlike the prior art open coke breeze receiving apparatus, the coke breeze receiving apparatus of the present invention is in a closed state throughout the entire housing 11 during non-breeze clearing (i.e., without the need for a time period for clearing coke breeze, such as including during steam air burn and receiving coke breeze and throughout the entire apparatus shutdown), thus preventing water vapor from being dispersed in the air, reducing the safety hazards for personnel, and protecting personnel from exposure to hot coke. Referring particularly to fig. 1, the housing 11 is provided with at least one, e.g., two, housing doors 112 that are rotatable about pivot axes 113 provided on the housing doors 112 relative to other stationary portions of the housing 11. With the bin door 112 in a closed position, the entire bin 11 is in a closed configuration, which facilitates the bin 11 to receive high temperature coke powder from the burn pot in a closed position, which greatly reduces the risk of hot coke exposure to personnel. When the coke powder in the receiving container 12 accumulates to a certain extent and needs to be cleared, the box door 112 may be opened in case a corresponding condition is satisfied (e.g., the temperature of the coke powder is lowered to a specific temperature threshold), and the receiving container 12 is removed from the box 11 by, for example, a forklift, thereby clearing the coke powder cooled to a lower temperature in the receiving container. It can be seen that the coke powder receiving apparatus of the present invention is safer and cleaner than conventional open-type coke powder receiving apparatus.
With continued reference to fig. 1, a filter cloth curtain 13 (which should be made of a flame retardant material resistant to high temperatures, such as 400 ℃ or more) may be further provided around the joint Jiao Kou 111 and the receiving container 12 within the tank 11, and may provide a coke powder receiving space and a steam condensing space that are separated from each other, the filter cloth curtain being configured such that the coke powder in the char-bearing flue gas flowing into the tank 11 from the joint 111 can be filtered and intercepted in the coke powder receiving space by the filter cloth curtain 13 and falls into the receiving container 12, and the steam in the char-bearing flue gas can enter into the steam condensing space through the filter cloth curtain 13 to be condensed into condensed water falling into the bottom of the tank 11, and these condensed water being held at the bottom of the tank by a threshold of the tank 11. Thus, the safe separation of the burnt fume in the burnt tank can be realized.
The bottom of the receiving container 12 is provided with a plurality of support legs 121, and the height of the plurality of support legs 121 is designed to be higher than the threshold height of the case 11. This high design of the support legs 121 is advantageous, because it allows on the one hand sufficient space to be provided between the bottom of the receiving container 12 and the threshold of the tank 11 to allow e.g. fork truck arms to extend into it for easy transport of the receiving container 12 by means of a fork truck or the like, and on the other hand also avoids that the bottom of the receiving container 12 is in contact with the condensation water accumulating at the bottom of the tank 11, while also avoiding that the receiving container 12 encroaches on the accumulation space of the condensation water.
In order to ensure that the filter cloth curtain 13 can provide effective interception of the focusing particles, the filter cloth curtain 13 needs to be tightly surrounded at the receiving opening of the receiving container 12 in the circumferential direction so as to provide a relatively airtight coke powder receiving space between the coke receiving opening 111 and the receiving opening of the receiving container 12, and any leakage gap is avoided. In the specific embodiment shown in fig. 1, a clamping structure 14 is provided on the inner side wall of the top of the case 11 around the coke receiving opening 111 for tightly clamping the filter cloth curtain 13. The clamping structure comprises two circumferential clamping portions (e.g. in the form of opposed clamping plates) spaced apart from each other to define an annular gap in which the filter cloth curtain 13 is clamped and held in place by a plurality of threaded fasteners, e.g. the filter cloth curtain 13 is held at circumferentially spaced apart intervals by one threaded fastener such that the filter cloth curtain 13 can be tightly lapped over the edges of the receiving opening of the receiving vessel 12, thereby providing a relatively closed coke powder receiving chamber 15 (see fig. 1) by the clamping structure 14 and the filter cloth curtain 13. The term "relatively closed" here is not intended to limit the absolute tightness of the receiving chamber, but rather to emphasize that as seamless overlap as possible is achieved with the filter cloth curtain 13 to obtain an effective separation of the char flue gases.
As mentioned before, the steam that has penetrated the filter cloth curtain 13 can condense to form condensed water, which will fall into the tank space outside the receiving container 12 and accumulate at the tank bottom. In order to facilitate drainage of condensed water accumulated at the bottom of the tank, a drain 114 may be provided at the bottom of one side of the tank 11 (left side as shown in fig. 1), in particular at an intermediate position (see fig. 2). The drain 114 may be connected with a valve and a dewatering hose. During the steam air scorching, the valve of the drain 114 may be in an open state, and condensed water can be discharged from the drain 114 to the sump via the dehydrating hose. More advantageously, a cleaning opening 115 may also be provided at the bottom of the other side of the tank 11 (as shown in fig. 2, at the rear side of the tank), in particular at a mid-position (see fig. 3), in order to clean any residual debris inside the tank 11. To facilitate cleaning of the residue at the drain 114/purge 115 to avoid any pipe blockage or the like, the bottom surface of the drain 114 and/or the bottom surface of the purge 115 is designed to be flush with the bottom surface of the tank 11.
According to the coke powder receiving apparatus of the invention, the housing 11 may alternatively be always in a stationary state, the coke receiving port 111 at the top of the housing 11 and the coke pouring port 2 of the coke drum being always connected (even during operation or burning of the cracking furnace), except that normal maintenance or inspection is required at the connection between the coke receiving port 111 and the coke pouring port 2 at a specific maintenance cycle. This makes it possible to avoid line stress due to frequent disassembly, effectively protecting the case and the connection line, and at the same time simplifying the operation flow of the coke powder receiving apparatus.
In order to facilitate the operator's connection of the coke receiving opening 111 to the coke pouring opening 2 and the routine maintenance of the connection therebetween, a plurality of tread steps 116 spaced apart from each other in the vertical direction (a plurality of tread steps at the opposite side not visible, i.e., the right side of the case, as shown with thin broken lines in fig. 2) may be provided at least one side of the case 11 to facilitate the operator to reach the top of the case 11 along the plurality of tread steps 116.
In order to ensure the safety of the operation of the operator, safety handrails 117 are provided on the case 11 near the stepping step 116 (for example, at the top of the case and at the position near the top on the right side, see fig. 1) for the operator to grasp when installing and maintaining. In addition, an electrostatic grounding plate 118 may be provided on the case 11 (as shown in fig. 3, in a lower right side of the case) for guiding out static electricity generated in use of the apparatus, and preventing danger such as explosion caused by accumulation of static electricity.
Next, an operation method of receiving and removing the coke powder using the coke drum system (which includes the coke drum and the coke powder receiving apparatus) according to the present invention will be described with reference to fig. 4. In this method, the following operation steps may be mainly included:
Fixedly connecting a coke receiving opening 111 of the coke powder receiving device 1 with a coke pouring opening 2 of the coke burning tank, for example, by using a metal hose (such as a steel wire hose);
during the steam-air scorching, the receiving vessel 12 is placed in the case 11 at a position corresponding to the scorching port 111 and the case door 112 is closed;
Opening a valve above the coke pouring opening 2 so that the coke powder falls from the coke pouring opening 2 into the receiving container 12 via the coke receiving opening 111;
Optionally, during the burning of the steam air, the valve of the drain 114 is opened so that the condensed water accumulated at the bottom of the tank 11 can be discharged to the sump;
after the steam air is burnt, closing a valve above the coke pouring opening 2;
After a period of natural cooling, the temperature of the tank 11 can be measured, for example by means of a temperature sensing device, such as a thermometer gun, and when the measured temperature of the tank 11 is below a predetermined threshold value, for example 40 ℃, the tank door 112 is opened, whereas the receiving container 12 is removed, for example by a forklift, and
After the coke powder in the receiving container 12 has been processed, the receiving container 12 can be moved back into the box 11, for example by a forklift, at which point the decoking is completed.
From the above, the coke powder receiving equipment provided by the invention adopts a fully-closed receiving system, so that anhydrous spraying can be realized, corrosion of spraying water to the inner wall of a container is effectively prevented, the potential safety hazard of work caused by water vapor dispersion in air during coke cleaning of a cracking furnace is eliminated, and meanwhile, the risk of hot coke exposure of operators is avoided, so that the coke powder receiving equipment is safer and cleaner than the traditional open water injection coke receiving equipment.
It should be noted that the above-described embodiments should be regarded as illustrative only, and the present invention is not limited to these embodiments. Many changes and modifications may be made by one skilled in the art without departing from the scope or spirit of the invention, by considering the contents of this specification. The true scope of the invention is defined by the following claims and their equivalents.
Claims (13)
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| JP4212169B2 (en) * | 1999-01-06 | 2009-01-21 | 三井金属鉱業株式会社 | Insulation / heating method for copper smelting flash furnace |
| JP4395935B2 (en) * | 1999-09-03 | 2010-01-13 | ダイキン工業株式会社 | Humidity control device |
| JP3899020B2 (en) * | 2002-12-26 | 2007-03-28 | 新日本製鐵株式会社 | Method for reducing sulfur compounds in gas in coke dry fire extinguishing equipment |
| KR100992358B1 (en) * | 2003-04-15 | 2010-11-04 | 주식회사 포스코 | Charge adjustment and dust collector of coke bin charging equipment |
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| KR101905760B1 (en) * | 2016-12-08 | 2018-12-05 | 주식회사 포스코 | Apparatus for condensing of coke dry quenching |
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| KR20130103155A (en) * | 2012-03-09 | 2013-09-23 | 김종민 | Apparatus for desalinating the seawater |
| CN220887403U (en) * | 2023-08-14 | 2024-05-03 | 内蒙古星光煤炭集团鄂托克旗华誉煤焦化有限公司 | A coke powder recovery mechanism for dry quenching coke quenching tower |
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