CN106433698B - Dry quenching furnace primary dust removal system and screen hanging device thereof - Google Patents
Dry quenching furnace primary dust removal system and screen hanging device thereof Download PDFInfo
- Publication number
- CN106433698B CN106433698B CN201610851416.3A CN201610851416A CN106433698B CN 106433698 B CN106433698 B CN 106433698B CN 201610851416 A CN201610851416 A CN 201610851416A CN 106433698 B CN106433698 B CN 106433698B
- Authority
- CN
- China
- Prior art keywords
- hanging
- screen
- dry quenching
- quenching furnace
- primary dust
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
- C10B43/02—Removing incrustations
- C10B43/04—Removing incrustations by mechanical means
Abstract
The invention provides a primary dust removal system of a dry quenching furnace and a screen hanging device thereof, belongs to the technical field of primary dust removal of the dry quenching furnace, and can solve the problem that a retaining wall in a primary dust remover of the conventional dry quenching furnace is easy to fall bricks and collapse. The invention relates to a screen hanging device for a primary dust removal system of a coke dry quenching furnace, which comprises: the hanging screen is made of metal materials, a cooling water channel is arranged in the hanging screen, and a water inlet and a water outlet are respectively arranged at two ends of the cooling water channel; the hanging unit is used for hanging the hanging screen and at least enabling the lower part of the hanging screen to be positioned in a settling chamber of the primary dust removal system of the coke dry quenching furnace; and the water supply unit is communicated with the water inlet and the water outlet of the hanging screen and is used for supplying cooling water to the hanging screen.
Description
Technical Field
The invention belongs to the technical field of primary dust removal of a dry quenching furnace, and particularly relates to primary dust removal and screen hanging device of the dry quenching furnace.
Background
The dry quenching furnace utilizes inert gas (such as nitrogen) as circulating gas to exchange heat with the incandescent coke produced by the coke furnace, and reduces the temperature of the coke to quench the coke. Obviously, a large amount of coke powder can be carried in the circulating gas after coke quenching is finished, and the coke powder can be used for coke quenching again after passing through a primary dust remover, a waste heat boiler, a secondary dust remover, a circulating fan, a heat pipe exchanger and the like.
The primary dust remover of the dry quenching furnace mainly comprises a retaining wall built by A-grade mullite, circulating gas for completing coke quenching is blocked by the retaining wall, and carried coke powder collides with the retaining wall due to inertia and falls into an ash hopper below the retaining wall to complete dust removal.
Obviously, the temperature of the circulating gas for completing coke quenching is very high, so that the temperature of the retaining wall is also very high when the coke dry quenching furnace works; however, during the inspection and maintenance of the dry quenching furnace, the retaining wall is also lowered to room temperature, and the repeated change of the temperature can cause the retaining wall to crack. Meanwhile, the dry quenching furnace can cause air pressure fluctuation during coke charging and coke discharging each time, so that the pressure borne by the retaining wall is periodically changed, and the retaining wall is cracked. The cracking of the retaining wall can cause brick dropping, so that the ash discharge of a primary dust remover is not smooth and even blocked, and the production is influenced; when cracking is serious, the retaining wall even can be wholly collapsed, the dust removal effect is lost, a large amount of coke powder enters the waste heat boiler along with the circulating gas, the windward side of the boiler superheater is seriously abraded, and serious accidents such as pipe explosion and the like are generated.
Disclosure of Invention
The invention solves the problem that a retaining wall in a primary dust remover of the conventional dry quenching furnace is easy to fall bricks and collapse, and provides a primary dust removing system of the dry quenching furnace and a screen hanging device thereof without the problems of brick falling and collapse.
The technical scheme adopted for solving the technical problem of the invention is a screen hanging device for a primary dust removal system of a dry quenching furnace, which comprises the following components:
the hanging screen is made of metal materials, a cooling water channel is arranged in the hanging screen, and a water inlet and a water outlet are respectively arranged at two ends of the cooling water channel;
the hanging unit is used for hanging the hanging screen and at least enabling the lower part of the hanging screen to be positioned in a settling chamber of the primary dust removal system of the coke dry quenching furnace;
and the water supply unit is communicated with the water inlet and the water outlet of the hanging screen and is used for supplying cooling water to the hanging screen.
Preferably, the hanging screen is provided with a plurality of hanging screens, and the hanging screens are hung in the same plane side by side.
Further preferably, the hanging screen comprises a long hanging screen and a short hanging screen, and the size of the long hanging screen is larger than that of the short hanging screen in the gravity direction.
It is further preferred that, of any two adjacent hanging screens, one is a long hanging screen and the other is a short hanging screen.
Further preferably, in the gravity direction, the ratio of the size of the short hanging screen to the size of the long hanging screen is 0.5-0.8: 1.
Preferably, the screen is made of steel.
Further preferably, the hanging screen comprises a plurality of seamless steel pipes which are arranged side by side and communicated through elbows or bent pipes, and the seamless steel pipes and the elbows form a cooling water channel; and the seamless steel pipes and the elbows or the bent pipes are connected through fin welding.
Preferably, the water supply unit comprises a distribution header, a water inlet pipe and a water outlet pipe, and the distribution header is respectively communicated with the water inlet and the water outlet of the hanging screen through the water inlet pipe and the water outlet pipe.
It is further preferred that the water inlet pipe and the water outlet pipe have a bent portion for absorbing deformation.
Preferably, the screen hanging device further includes: and one end of each sealing cover is connected with the hanging screen, and the other end of each sealing cover is connected with the top wall of a settling chamber of the primary dust remover of the dry quenching furnace.
Further preferably, the sealing cap has a bent portion for absorbing deformation.
The technical scheme adopted for solving the technical problem of the invention is a primary dust removal system of a dry quenching furnace, which comprises the following steps:
a settling chamber having an air inlet;
in the screen hanging device, the air inlet is opposite to the screen hanging.
Preferably, the hanging unit and the water supply unit are both arranged on the outer side of the top wall of the settling chamber, and the lower part of the hanging screen extends into the settling chamber through an opening in the top wall of the settling chamber.
It is further preferred that the screen hanging device has a sealed enclosure; the sealing cover is positioned outside the settling chamber, one end of the sealing cover is connected with the hanging screen, and the other end of the sealing cover is connected with the outer side of the top wall of the settling chamber.
The hanging screen device can play a role of dust removal similar to a retaining wall, and because the hanging screen is made of metal, the hanging screen device can only deform but not crack when meeting temperature change, pressure change and the like, so that the phenomena of brick falling, collapse and the like are avoided, and the running stability of the dry quenching furnace is ensured; and the hanging screen is hung on the hanging unit instead of being directly built, so that when the hanging screen is damaged, the damaged hanging screen is only needed to be detached and replaced by a new hanging screen, and the primary dust removal system of the coke dry quenching furnace can be continuously and normally used.
Drawings
Fig. 1 is a schematic front view of a hanging screen in a hanging screen device according to an embodiment of the present invention;
fig. 2 is a schematic front view of a screen hanging device according to an embodiment of the present invention;
fig. 3 is a partial cross-sectional structural schematic view of a screen suspension apparatus at the top wall of a settling chamber according to an embodiment of the present invention;
wherein the reference numerals are: 1. hanging a screen; 11. seamless steel pipes; 12. bending the pipe; 13. a fin; 18. a long hanging screen; 19. short hanging screen; 2. a distribution header; 31. a water inlet pipe; 32. a water outlet pipe; 4. a sealing cover; 41. a bending section; 9. a top wall; 91. and (4) opening.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1 to 3, the present embodiment provides a hanging screen device for a primary dust removal system of a dry quenching furnace, which includes:
the hanging screen 1 is made of metal materials, a cooling water channel is arranged in the hanging screen 1, and a water inlet and a water outlet are respectively arranged at two ends of the cooling water channel;
the hanging unit is used for hanging the hanging screen 1, and at least the lower part of the hanging screen 1 is positioned in a settling chamber of the primary dust removal system of the coke dry quenching furnace;
and the water supply unit is communicated with the water inlet and the water outlet of the hanging screen 1 and is used for supplying cooling water to the hanging screen 1.
The above hanging screen device is used in a dry quenching furnace primary dust removal system, as shown in fig. 1 and 2, and comprises a hanging screen 1 similar to a screen or a baffle, wherein the hanging screen 1 is hung on a hanging unit (which can be in the form of a hook and the like, and is not described in detail herein as long as the hanging screen 1 can be hung up), and at least the lower part of the hanging screen 1 is positioned in a settling chamber of the dry quenching furnace primary dust removal system. When the circulating gas after quenching enters the settling chamber from the gas inlet, the flow velocity is reduced due to the sudden expansion of the flow area (the flow area in the settling chamber is obviously larger than that of the gas inlet), so that part of coke powder is settled; meanwhile, most of the circulating gas is blocked by the hanging screen 1 and flows through the lower part of the hanging screen 1, and the coke powder carried in the circulating gas is collided with the hanging screen 1 under the action of inertia to settle and fall into an ash bucket, so that dust removal is completed. Meanwhile, a cooling water channel for introducing cooling water is arranged in the hanging screen 1, and a water inlet and a water outlet of the cooling water channel are respectively connected with a water supply unit; the cooling water can reduce the temperature of the hanging screen 1, and ensure that the hanging screen can be used in a high-temperature settling chamber for a long time.
Because the hanging screen 1 is made of metal, the hanging screen only deforms when meeting temperature change, pressure change and the like, but does not crack, thereby avoiding the phenomena of brick falling, collapse and the like and ensuring the running stability of the dry quenching furnace; moreover, the hanging screen 1 is hung on the hanging unit instead of being directly built, so when the hanging screen 1 is damaged, the coke dry quenching furnace once dust removal system can be continuously and normally used as long as the damaged hanging screen 1 is detached and replaced by a new hanging screen 1.
Preferably, the hanging screen 1 is provided in a plurality and is hung in the same plane side by side.
That is, it is preferable to arrange a plurality of hanging panels 1 side by side in the lateral direction (parallel to the hanging panel 1 and perpendicular to the direction of gravity) on the hanging unit, so that each hanging panel 1 has a small size and weight, and is convenient to manufacture, install and replace. Of course, when installing, the side parts of the adjacent hanging screens 1 can be welded together, so that a plurality of hanging screens 1 can be connected.
Preferably, the hanging screen comprises a long hanging screen 18 and a short hanging screen 19, and the size of the long hanging screen is larger than that of the short hanging screen in the gravity direction. More preferably, in any two adjacent hanging screens 1, one is a long hanging screen 18, and the other is a short hanging screen 19; further preferably, the ratio of the size of the short hanging screen 19 to the size of the long hanging screen 18 is 0.5-0.8: 1 in the gravity direction.
As shown in fig. 2, the screens 1 are preferably divided into different long screens 18 and short screens 19 according to their length in the longitudinal direction (i.e. in the direction of gravity), and the lower sides of the screens 1 are in a "saw-toothed" configuration as a whole due to their different lengths. Thus, part of the circulating gas inevitably flows through the space below the short hanging screen 19 (i.e. the gap between the two long hanging screens 18), thereby destroying the vortex generation after the hanging screen 1 and avoiding the settled coke powder from being stirred up by the vortex and flowing out along with the circulating gas. Among them, in order to achieve a better vortex breaking effect, the long hanging screen 18 and the short hanging screen 19 are preferably arranged in an "alternating arrangement" in the horizontal direction, so that a large amount of gas flows through the gap between the two long hanging screens 18. According to research, if the size of the long hanging screen 18 is 1, the effect that the size of the short hanging screen 19 is 0.5-0.8 is better in the gravity direction.
Preferably, the screen 1 is made of steel.
That is, steel (such as carbon steel) can be used as the material of the screen 1, and the steel has good comprehensive performance, multiple selectable types and relatively low cost. Of course, it is also possible if other alloys are used as the material of the screen 1.
More preferably, the hanging screen 1 comprises a plurality of seamless steel pipes 11 which are arranged side by side and communicated through elbows 12 or bent pipes, and the seamless steel pipes 11 and the elbows 12 form a cooling water channel; the seamless steel pipes 11 and the elbow 12 or the bent pipe are welded and connected by the fin 13.
As shown in fig. 1, each panel 1 may include a plurality of seamless steel tubes 11 connected together by fins 13, and the seamless steel tubes are connected by bends 12 (e.g., 180 degree bends) (the bends 12 or bends may also be connected by welding via the fins 13) to form cooling water passages. All the seamless steel pipes 11 in each hanging screen 1 can be communicated through the elbows 13 in sequence, so that a cooling water channel is formed; or, the seamless steel pipes 11 in one hanging screen 1 can also be divided into several groups, and the seamless steel pipes 11 in each group are communicated through the elbows 13, so that a plurality of cooling water channels are formed; or, the seamless steel pipes 11 between the adjacent hanging screens 1 can also be communicated through the elbows 13, so that the cooling water channels in the hanging screens 1 are connected together (namely, the water outlet of one cooling water channel of one hanging screen 1 is connected with the water inlet of the cooling water channel of the other hanging screen 1) to form one cooling water channel; the cooling water channels can be designed specifically according to the cooling requirements and are not described in detail here.
Preferably, the water supply unit comprises a distribution header 2, a water inlet pipe 31 and a water outlet pipe 32, and the distribution header 2 is respectively communicated with the water inlet and the water outlet of the hanging screen 1 through the water inlet pipe 31 and the water outlet pipe 32. More preferably, the inlet pipe 31 and the outlet pipe 32 have bent portions for absorbing deformation.
That is, the distribution header 2 can be used to supply the hanging panel 1 with cooling water, wherein the cooling water fed to the distribution header 2 can be boiler feed water, so that the cooling water can participate in the steam cycle of the waste heat boiler. Of course, the cooling water may be oxygen-removed feed water or the like, and will not be described in detail.
The hanging screen 1 is suspended, and the water inlet and the water outlet of the hanging screen 1 are difficult to be directly connected with the distribution header 2, so that the hanging screen 1 and the distribution header 2 can be communicated through the water inlet pipe 31 and the water outlet pipe 32. Since the panel 1 is subjected to a large temperature difference between in use and in maintenance, expansion deformation occurs, and the panel 1 is subjected to a small vibration due to the impact of the circulating gas, the pipe directions of the inlet pipe 31 and the outlet pipe 32 are preferably designed to absorb the above deformation or vibration, i.e., to have a bent portion (e.g., in the form of a 180-degree bent pipe as shown in fig. 3) for absorbing the deformation.
The deformation and vibration can be absorbed to a certain extent, and the damage of devices is avoided.
Preferably, the screen hanging device further comprises: two sealing covers 4 are respectively arranged at two sides of the hanging screen 1, one end of each sealing cover 4 is connected with the hanging screen 1, and the other end is used for being connected with a top wall 9 of a settling chamber of a primary dust remover of the dry quenching furnace. More preferably, the sealing cap 4 has a bent portion 41 for absorbing deformation.
As shown in fig. 2 and 3, the sealing covers 4 can be arranged on two sides of the hanging screen 1, and the sealing covers 4 are connected between the hanging screen 1 and the top of the settling chamber, so that a relatively closed space is formed, and the circulating gas in the settling chamber is prevented from leaking out of the settling chamber from a gap between the hanging screen 1 and the top wall 9 of the settling chamber. The sealing cover 4 preferably also has a bent portion 41 therein, and the bent portion 41 can absorb deformation and vibration of the hanging screen 1 to avoid damage of the device, similar to the above bent portion.
The embodiment also provides a dry quenching furnace primary dust removal system, which comprises:
a settling chamber having an air inlet;
in the screen hanging device, the air inlet is arranged right opposite to the screen hanging 1.
The primary dust removal system of the dry quenching furnace is used for primary dust removal of the dry quenching furnace, and replaces a primary dust remover of the conventional dry quenching furnace and an expansion joint between the primary dust remover and a waste heat boiler. The gas inlet of the settling chamber is used for introducing circulating gas for quenching coke, and the flow velocity is reduced due to the sudden expansion of the flow area after the circulating gas enters (the flow area in the settling chamber is obviously larger than that of the gas inlet), so that part of coke powder is settled; meanwhile, most of the circulating gas is blocked by the hanging screen 1 and flows through the lower part of the hanging screen 1, and the coke powder carried in the circulating gas collides with the hanging screen 1 due to the inertia effect, is settled and falls into the ash bucket, and the dust removal is completed.
Of course, the settling chamber can also be provided with other structures such as an ash bucket, an air outlet and the like; the ash bucket can be arranged below the settling chamber, the gas outlet can be connected with a waste heat boiler, and the circulating gas subjected to primary dust removal enters the boiler, then sequentially enters a secondary dust remover, a circulating fan, a heat pipe heat exchanger and the like, and then is used for quenching coke again; wherein boiler feed water can also be fed into the distribution header 2 as cooling water for use in the hanging panel 1, so that the cooling water participates in the steam circulation of the waste heat boiler.
Preferably, the above hanging unit and the water supply unit are both arranged outside the top wall 9 of the settling chamber, and the lower part of the hanging screen 1 extends into the settling chamber through an opening 91 on the top wall 9 of the settling chamber.
That is, it is possible to arrange the suspension unit, the water supply unit (distribution header 2, inlet pipe 31, outlet pipe 32, etc.) outside the settling chamber, and to provide an opening 91 in the top wall 9 of the settling chamber, as shown in fig. 2 and 3, so that only the lower part of the hanging panel 1 protrudes into the settling chamber through the above opening 91. In this way, the water supply unit and the like are located outside the settling chamber, and their damage due to the harsh environment inside the settling chamber can be avoided.
Preferably, for the hanging screen 1 with the sealing cover 4, the sealing cover 4 is positioned outside the settling chamber, one end of the sealing cover is connected with the hanging screen 1, and the other end of the sealing cover is connected with the outer side of the top wall 9 of the settling chamber.
That is, as shown in fig. 2 and 3, the containment cap 4 is preferably also provided outside the settling chamber, so as to reduce the possibility of damage thereto.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A screen hanging device for a primary dust removal system of a coke dry quenching furnace is characterized by comprising:
the hanging screen is made of metal materials, a cooling water channel is arranged in the hanging screen, and a water inlet and a water outlet are respectively arranged at two ends of the cooling water channel;
the hanging unit is used for hanging the hanging screen and at least enabling the lower part of the hanging screen to be positioned in a settling chamber of the primary dust removal system of the coke dry quenching furnace;
the water supply unit is communicated with the water inlet and the water outlet of the hanging screen and is used for supplying cooling water to the hanging screen;
the plurality of hanging screens are hung in the same plane side by side; the hanging screen comprises a long hanging screen and a short hanging screen, and the ratio of the size of the short hanging screen to the size of the long hanging screen is 0.5-0.8: 1 in the gravity direction; one of any two adjacent hanging screens is a long hanging screen, and the other is a short hanging screen.
2. The screen hanging device of claim 1,
the hanging screen is made of steel.
3. The screen hanging device of claim 2,
the hanging screen comprises a plurality of seamless steel pipes which are arranged side by side and communicated through elbows or bent pipes, and the seamless steel pipes and the elbows form a cooling water channel;
and the seamless steel pipes and the elbows or the bent pipes are connected through fin welding.
4. The screen hanging device of claim 1,
the water supply unit comprises a distribution header, a water inlet pipe and a water outlet pipe, wherein the distribution header is respectively communicated with the water inlet and the water outlet of the hanging screen through the water inlet pipe and the water outlet pipe.
5. The screen hanging device of claim 4,
the inlet and outlet pipes have curved portions for absorbing deformation.
6. The screen hanging device according to claim 1, further comprising:
and one end of each sealing cover is connected with the hanging screen, and the other end of each sealing cover is connected with the top wall of a settling chamber of the primary dust remover of the dry quenching furnace.
7. The screen hanging device of claim 6,
the sealing cap has a fold for absorbing deformation.
8. A coke dry quenching furnace primary dust removal system is characterized by comprising:
a settling chamber having an air inlet;
the screen hanging apparatus of any one of claims 1 to 7 wherein the air inlet is directly opposite the screen hanging apparatus.
9. The dry quenching furnace primary dust removal system as claimed in claim 8,
the hanging unit and the water supply unit are arranged on the outer side of the top wall of the settling chamber, and the lower portion of the hanging screen extends into the settling chamber through an opening in the top wall of the settling chamber.
10. The dry quenching furnace primary dust removal system as claimed in claim 9,
the screen hanging device is the screen hanging device of claim 6 or 7;
the sealing cover is positioned outside the settling chamber, one end of the sealing cover is connected with the hanging screen, and the other end of the sealing cover is connected with the outer side of the top wall of the settling chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610851416.3A CN106433698B (en) | 2016-09-26 | 2016-09-26 | Dry quenching furnace primary dust removal system and screen hanging device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610851416.3A CN106433698B (en) | 2016-09-26 | 2016-09-26 | Dry quenching furnace primary dust removal system and screen hanging device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106433698A CN106433698A (en) | 2017-02-22 |
| CN106433698B true CN106433698B (en) | 2021-12-24 |
Family
ID=58171182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610851416.3A Active CN106433698B (en) | 2016-09-26 | 2016-09-26 | Dry quenching furnace primary dust removal system and screen hanging device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106433698B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201971784U (en) * | 2010-12-17 | 2011-09-14 | 攀钢集团钢铁钒钛股份有限公司 | Primary dust remover |
| CN206157091U (en) * | 2016-09-26 | 2017-05-10 | 北京华泰焦化工程技术有限公司 | Dust pelletizing system of dry quenching furnace and hanging panel device thereof |
-
2016
- 2016-09-26 CN CN201610851416.3A patent/CN106433698B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106433698A (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203572289U (en) | Coupled mode needle plate heat transfer augmentation component and special-shaped tube panel type water tube heat exchanger | |
| CN103615923B (en) | Novel needle plate coupled mode heat conduction reinforced element and special-shaped tube panel formula water pipe heat exchanger | |
| CN107860022B (en) | Variable flue section tubular air preheater | |
| CN204986938U (en) | Energy -conserving dust removal troilite exhaust -heat boiler | |
| CN107062956A (en) | A kind of spiral finned tube heat-exchanger rig utilized for Large Copacity fume afterheat | |
| CN106433698B (en) | Dry quenching furnace primary dust removal system and screen hanging device thereof | |
| CN111578744A (en) | Silver ore deposit dust removal heat transfer integration equipment | |
| CN206157091U (en) | Dust pelletizing system of dry quenching furnace and hanging panel device thereof | |
| CN206787349U (en) | A kind of spiral finned tube heat-exchanger rig utilized for Large Copacity fume afterheat | |
| CN113769487B (en) | Put out stove dust removal structure futilely | |
| CN203010587U (en) | Boiler returning device | |
| CN209415770U (en) | A kind of integrated room combustion hot-water boiler of horizontal condensation | |
| CN207438540U (en) | A kind of waste heat boiler | |
| CN218566201U (en) | Nested formula ash discharge structure in high temperature dust collecting equipment | |
| CN207922267U (en) | A kind of list boiler pressure-bearing type traveling-grate stoker spray denitration corner tube boiler | |
| CN109186093A (en) | Fire hot-water boiler in a kind of vertical condensation one room | |
| CN102419110B (en) | Recovery device for sensible heat of powdery solid | |
| CN202322723U (en) | 125t/h dry quenching barricade-free one-time dust removing device | |
| CN218910417U (en) | Internal cooling ash discharging structure of high-temperature dust removing equipment | |
| CN214619468U (en) | Waste heat boiler for electric furnace | |
| CN213120175U (en) | Medium temperature dust removal heat transfer integration equipment | |
| JP2014025601A (en) | Exhaust gas recovery system | |
| CN107654984A (en) | A kind of waste heat boiler | |
| CN110715557A (en) | Furnace flue gas waste heat recovery heat exchanger | |
| CN217230614U (en) | Coke powder cooling device of primary dry quenching dust remover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Section thirteen economic and Technological Development Zone of Beijing City 31 street 100176 No. two School District No. 15 Building 5 layer 501 Applicant after: HUATAI YONGCHUANG (BEIJING) TECHNOLOGY Co.,Ltd. Address before: 101318, building 14, Rong Hui Garden, B District, Shunyi District Airport Industrial Park, Beijing Applicant before: BEIJING HUATAI COKING ENGINEERING CONSULTING Corp. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |