CN109666487B - Coke oven sealing and ventilating dust removal device and method - Google Patents
Coke oven sealing and ventilating dust removal device and method Download PDFInfo
- Publication number
- CN109666487B CN109666487B CN201811517867.9A CN201811517867A CN109666487B CN 109666487 B CN109666487 B CN 109666487B CN 201811517867 A CN201811517867 A CN 201811517867A CN 109666487 B CN109666487 B CN 109666487B
- Authority
- CN
- China
- Prior art keywords
- hanging wall
- exhaust hood
- coke
- coke oven
- closed
- 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
- C10B43/00—Preventing or removing incrustations
Abstract
The invention provides a coke oven sealing and ventilating dust removing device and a method, wherein the device comprises: the closed factory buildings comprise a hanging wall, a parallel string net rack, a pressure bar, a corner brace, a roof, a purline, a brace, a factory building column, an inter-column support and the like which are connected with each other; dust removal equipment such as an electric valve, a pneumatic valve, a coke side exhaust hood, a riser exhaust hood, a furnace top exhaust hood, a compensator, an induced draft fan, a pulse bag type dust remover, a chimney and the like; ventilation equipment such as a fresh air pipeline, a primary filter, a surface cooler, a refrigerating unit, a blower and the like; the method comprises the following steps: 1. sealing → 2, ventilation → 3, dust collection → 4, accident diffusion → 5, flue gas conveying pipeline → 6, flue gas treatment and discharge; the invention has the advantages that: the closed space can collect all coke oven smoke emitted above the coal loader, the ascending pipe and the coke quenching tank; the ventilation system and the accident handling system improve the labor environment of operators, reduce the negative environmental impact on the operators caused by environmental pollution, discharge the coke oven flue gas after dust removal treatment and reach the standard, and the discharge concentration is less than or equal to 10mg/Nm3。
Description
The technical field is as follows:
the invention relates to the technical field of coking auxiliary equipment and processes, in particular to a coke oven flue gas treatment device and a coke oven flue gas treatment method.
Background art:
in the prior art, flue gas overflows from a coke oven in the coal charging and coke discharging processes, flue gas is scattered in the ascending pipe cover opening operation process and the coke quenching tank traveling process, the oven door and the coal charging hole are not tightly sealed, and the flue gas also leaks, the concentration of particulate matters on the oven top and the factory boundary of the coke oven exceeds the standard due to the collection of the flue gas, the flue gas overflowing from the dust production point cannot be collected by the existing coal charging and coke discharging dust removal ground station of the coke oven, and the problem of unorganized emission of the dust production point of the coke oven is urgently needed to be solved in order to solve the problem of environmental pollution caused by the overflow of the flue gas of the coke. However, only one coking plant in China currently adds a scattered smoke dust collecting and processing device on a2 x 58-hole 6m coke oven, the device consists of a smoke dust collecting cover, a smoke dust collecting and processing facility and a windproof net, the smoke dust collecting cover is raised by hot smoke gas and then collected in a centralized manner, and the independent collection and automatic control of the smoke gas of each dust collecting point cannot be realized; and the two ends of the smoke dust collecting cover are respectively supported on the coke oven, so that the load of the coke oven is increased. Because the periphery of the coke oven is provided with the windproof net, the windproof net and the smoke dust collecting cover have a certain distance, the operation area is large, and the smoke dust collecting and processing facility collects a large amount of wild wind, thereby reducing the dust removal effect and still having the problem of smoke emission overflow.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provide a coke oven sealing, ventilating and dedusting method and a device thereof, which have the advantages of small closed space, high dedusting and ventilating efficiency, capability of solving the problem of scattered smoke overflow, independent collection and treatment of each smoke overflow point and discharge of the smoke overflow points, and improvement of the working environment of operators by means of refrigeration and air supply.
The technical scheme adopted by the invention for solving the problems is as follows: the coke oven sealing, ventilating and dedusting device comprises a coke oven, a coke pushing cart, a coke quenching tank, a coal loader and an ascending pipe, and is characterized in that: further comprising: the device comprises a riser smoke exhaust hood, a furnace top smoke exhaust hood, a manual butterfly valve, an electric valve a, a pneumatic butterfly valve, a closed workshop, a hanging wall a, a hanging wall b, a hanging wall c, a coke side smoke exhaust hood, an electric valve b, a compensator a, a pulse bag type dust remover a, an induced draft fan a, a silencer a, an electric valve c, an electric valve d, a compensator b, a pulse bag type dust remover b, an induced draft fan b, a silencer b, a chimney b, an accident exhaust fan, a fresh air pipeline, a primary filter, a surface cooler, a refrigerating unit, a blower, an air supply outlet, a hanging wall d, a hanging wall e, a pressure rod, a corner brace, a roof b, a purlin, a brace, a parallel chord net rack, a plant column, an intercolumnar support, a gutter, a downpipe and a column foot; one side of the coke oven is provided with a coke pushing cart, and the other side of the coke oven is provided with a coke quenching tank; a coal loader is arranged above the coke oven; one side of the coal loader is provided with an ascending pipe, and a ascending pipe exhaust hood is arranged above the ascending pipe; the ascending pipe exhaust hood is fixedly arranged below the roof of the closed workshop; a furnace top smoke exhaust hood is arranged above the coal loader and fixedly arranged below the roof of the closed workshop; a coke side smoke exhaust hood fixedly arranged below the roof of the closed workshop is arranged above the coke quenching tank; a hanging wall c fixedly arranged below the roof of the closed workshop is arranged at one side of the coal loader provided with the ascending pipe; the other side of the coal loader is provided with a hanging wall b fixedly arranged below the roof of the closed workshop; one side of the coke quenching tank, which is far away from the coke oven, is provided with a hanging wall a which is fixedly arranged below the roof of the closed workshop; two jacks of a hanging wall a, a hanging wall b and a hanging wall c which are longitudinally arranged are respectively and transversely provided with a hanging wall d and a hanging wall e; two rectangular closed spaces are formed above the coke quenching tank, the coal loader and the ascending pipe by a hanging wall a, a hanging wall b and a hanging wall c which are longitudinally installed and a hanging wall d and a hanging wall e which are transversely installed; an accident exhaust fan is fixedly arranged above the closed workshop; an air supply outlet is fixedly arranged below the hanging wall b; the air supply outlet is communicated with the air feeder through an air supply pipeline; the blower is communicated with the surface cooler through a blower pipeline; the surface cooler is communicated with the refrigerating unit in a bidirectional way; surface cooler and primary filter pipelineCommunicating; the primary filter is communicated with a fresh air pipeline; one end of the smoke outlet connecting pipeline of the ascending pipe smoke exhaust hood is connected with a manual butterfly valve and then is communicated with a pipeline at the rear end of an electric valve a connected with the smoke outlet connecting pipeline of the furnace top smoke exhaust hood; the other end of the valve is communicated with the atmosphere after passing through a pneumatic butterfly valve; the far end of a flue gas outlet connecting pipeline of the furnace top smoke exhaust hood is communicated with an electric valve b, a compensator a, a pulse bag type dust remover a, an induced draft fan a, a silencer a and a chimney a in sequence; the coke side fume exhaust hood flue gas outlet connecting pipeline is communicated with the electric valve c, the electric valve d, the compensator b, the pulse bag type dust collector b, the induced draft fan b, the silencer b and the chimney b in sequence. The device is characterized in that: the closed factory building consists of a parallel chord net rack, factory building columns, inter-column supports, a gutter, a downpipe, column feet, a pressure rod, a corner brace, a roof, purlins and a brace; the parallel chord net frame adopts a rigid bent frame structure; the lower parts of the parallel chord net racks above the coke quenching tank, the coal loader and the ascending pipe are fixedly provided with a roof by purlines and braces; a hanging wall a, a hanging wall b and a hanging wall c are longitudinally and fixedly connected and hung below the roof; hanging walls d and e are transversely and fixedly hung at two ends of the longitudinal hanging wall a, the longitudinal hanging wall b and the longitudinal hanging wall c respectively; 3, 5 vertical and 2 horizontal hanging walls form two closed areas for ventilation and dust removal of the coke oven, namely a coke side closed area is formed between the hanging wall a and the hanging wall b, and a furnace body closed area is formed between the hanging wall b and the hanging wall c; the hanging wall a and the hanging wall b are connected with the roof in an oblique reinforcing manner through angle braces; the hanging wall a is transversely connected with the factory building column in a reinforcing manner through a pressure lever; the roof is laid on the purline; the purline is fixedly connected with the parallel string net rack through a brace; the parallel chord net rack is fixedly connected with the column top of the plant room column in a hinged manner; the plant house column is fixedly connected with the foundation through a column base; the longitudinal wall direction of the plant room column is reinforced with an inter-column support; the drainage system of the closed factory building consists of a gutter and a downpipe; the gutter is arranged on the edge of the roof, and the downpipe is arranged on the support of the parallel chord net rack and the plant room column in the area above the coke pusher; the basic column spacing of the plant room columns is 6-12 m, and the local column spacing is 12-24 m. The ascending pipe exhaust hoods above the ascending pipes can be arranged in groups, and one ascending pipe exhaust hood is arranged above every 3-5 ascending pipes; the furnace top smoke exhaust hoods in furnace top dust removal are grouped according to coal charging holes of a coal charging machine, and one furnace top smoke exhaust hood is arranged in every 3-5 rows of coal charging holes. Refrigeration systemThe unit selects lithium bromide absorption refrigeration cooling or compression refrigeration cooling; the valve arranged on the upper diffusion pipe of the ascending pipe exhaust hood adopts a pneumatic control valve. The coke oven sealing and ventilating dust removing method is characterized by comprising the following steps: 1. sealing → 2, refrigeration → 3, ventilation and dust collection → 4, accident dissipation → 5, flue gas conveying pipeline → 6, flue gas treatment and discharge; 1. and (3) sealing: the closed factory building mainly comprises a longitudinal hanging wall consisting of a hanging wall a, a hanging wall b and a hanging wall c and two rectangular closed spaces consisting of transverse hanging walls consisting of a hanging wall d and a hanging wall e; 1 enclosed space of the furnace body can collect all coke oven smoke emitted above the coal loader and the ascending pipe; the other coke side closed space can collect all coke oven smoke emitted above the coke quenching tank; the 5-face hanging wall is mainly connected and supported by a parallel chord net rack, a factory building column, a support between columns, a roof, a purline, a brace, a corner brace, a pressure bar, a column foot, a gutter and a downpipe; the closed factory building is characterized in that: vent holes with different heights are reserved below the 5-face hanging wall, so that the coke oven smoke forms a ventilation mode of downward inlet and upward outlet; 2. refrigerating: the refrigerating system mainly comprises a fresh air pipeline, a primary filter, a surface cooler, a refrigerating unit, a blower and an air supply outlet; the refrigerating unit selects lithium bromide absorption type refrigeration cooling or compression type refrigeration cooling; the cold air system arranged in the coke oven top area conveys cold air to the coke oven top worker operation area, so that the labor environment of the coke oven top worker is improved, and the negative environmental influence of environmental pollution on the worker is reduced; 3. the ventilation and dust collection are that a coke side smoke exhaust hood, a furnace top smoke exhaust hood and a rising pipe smoke exhaust hood for collecting dust of the coke oven smoke are respectively arranged above the coke quenching tank, the coal loader and the rising pipe; the coke side smoke exhaust hood, the furnace top smoke exhaust hood and the ascending pipe smoke exhaust hood are respectively provided with a smoke outlet pipeline, and a manual valve, an electric valve a and an electric valve c which are communicated with the smoke outlet pipeline; 4. an accident diffusing step, namely arranging a diffusing pipe and a pneumatic valve for controlling the opening and closing of the diffusing pipe above a smoke exhaust hood of the ascending pipe, arranging an accident exhaust fan at the top of a closed workshop, opening the pneumatic valve when an accident happens, diffusing harmful smoke generated by the accident, and simultaneously starting the accident exhaust fan to rapidly evacuate harmful gas generated by the accident; 5. flue gas conveying, coke side smoke dischargingThe cover, the furnace top smoke exhaust cover and the ascending pipe smoke exhaust cover are used for conveying the collected coke oven smoke to the bag-type dust remover a and the bag-type dust remover b in two paths through the manual valve, the electric valve a, the electric valve c, the electric valve b, the compensator a, the electric valve d and the compensator b for smoke dust removal treatment and emission; 6. the coke oven smoke after being treated by the bag-type dust remover a and the bag-type dust remover b is divided into two paths to pass through an induced draft fan a, a silencer a, an induced draft fan b and a silencer b, and then is discharged to the atmosphere after passing through a chimney a and a chimney b, and the discharge concentration is less than or equal to 10mg/Nm3. The method is also characterized in that: and ventilation openings are reserved below the hanging wall a12, the hanging wall b13, the hanging wall c14, the hanging wall d36 and the hanging wall e37, so that the air forms a ventilation mode of downward entering and upward exiting. The discharge concentration of the flue gas after dust removal and purification by the pulse bag type dust collector a and the pulse bag type dust collector b is less than or equal to 10mg/Nm3. The air supply outlets are arranged at intervals of 5-15m, the height of the air supply outlet is 1-1.5m, the air supply volume is designed to be 2500 plus 5000m3/h, and the cold air temperature is about 10-15 ℃. The valve that the upper portion of rising pipe exhaust hood diffuses the pipe installation adopts pneumatic type control, and when the outage, pneumatic valve relies on the automatic opening of gasbag internal gas pressure, and harmful gas in the rising pipe area can be outside the factory building by diffusing the automatic discharge of pipe. The accident exhaust fan selects an explosion-proof double-speed roof fan, three power supplies of a double power supply and a diesel generator are adopted, raw coke oven gas is supplied under emergency states of explosion or poisoning caused by overflow, when the double power supply loses power, the diesel generator is adopted for supplying power, harmful gas is rapidly exhausted out of a factory building, and the designed ventilation frequency is more than 12 times.
The invention has the beneficial effects that: the coke oven sealing, ventilating and dedusting device adopts the grid structure and the hanging retaining wall for sealing, can independently collect and treat the smoke overflow points and then discharge the smoke overflow points, improves the ventilating and dedusting efficiency, avoids the unorganized discharge of the coke oven, meets the requirement of environmental protection and protection, improves the working environment of operators by means of refrigeration and air supply, and designs the accident exhaust fan and the ascending pipe diffusing system from the safety perspective to quickly exhaust harmful gas generated in an accident state out of a factory building. The device provided by the invention has the advantages of simple structure, convenience in operation, energy conservation and environmental protection, and solves the technical problems that smoke overflows from a coke oven in the coal charging and coke discharging processes, smoke is scattered in the opening operation process of the ascending pipe cover and the walking process of the coke quenching tank, smoke leaks from the oven door and the coal charging hole due to loose seal, the concentration of particles at the top of the coke oven and the factory boundary exceeds the standard due to the collection of the smoke, and the smoke overflowing from the dust producing point cannot be collected by the existing coal charging, coke discharging and dedusting ground station of the coke oven, which are always expected to be solved by people in the coke oven production. Provides a solution for the clean production of the coke oven.
Description of the drawings:
FIG. 1 is a process flow diagram in an embodiment of the invention;
FIG. 2 is a diagram of a cooling air system in an embodiment of the present invention;
FIG. 3 is a plan view of the coke oven closure of FIG. 1;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a cross-sectional view B-B of FIG. 3;
fig. 6 is a partial enlarged view of F1 of fig. 4;
fig. 7 is a partial enlarged view of F2 of fig. 4;
fig. 8 is a partial enlarged view of F3 of fig. 5;
fig. 9 is a partial enlarged view of F4 of fig. 5.
In the drawings: 1. a coke oven; 2. a coke pusher; 3. a coke quenching tank; 4. loading a coal machine; 5. a riser pipe; 6. a riser smoke exhaust hood; 7. a furnace top smoke exhaust hood; 8. a manual valve; 9. an electrically operated valve a; 10. a pneumatic valve; 11. sealing the plant; 12. a hanging wall a; 13. a hanging wall b; 14. hanging a wall c; 15. a coke side fume hood; 16. an electrically operated valve b; 17. a compensator a; 18. a pulse bag type dust collector a; 19. a draught fan a; 20. a silencer a; 21. a chimney a; 22. an electrically operated valve c; 23. an electrically operated valve d; 24. a compensator b; 25. a pulse bag type dust collector b; 26. b, a draught fan; 27. a silencer b; 28. a chimney b; 29. an accident exhaust fan; 30. a fresh air duct; 31. a primary filter; 32. a surface cooler; 33. a refrigeration unit; 34. a blower; 35. an air supply outlet; 36. hanging a wall d; 37. hanging a wall e; 38. a pressure lever; 39. a corner brace; 40. a roof b; 41. a purlin; 42. bracing; 43. a parallel chord net rack; 44. a plant house column; 45. supporting among the columns; 46. gutter; 47. a downpipe; 48. a column base.
The specific implementation mode is as follows:
example 1: below isEmbodiments of the invention are described in further detail with reference to the accompanying drawings: FIG. 1 is a process flow diagram of a coke oven sealing and ventilating dust removing device and method, wherein the device comprises: coke oven 1, coke pusher 2, coke quenching tank 3, coal loader 4, ascending pipe 5, ascending pipe exhaust hood 6, top exhaust hood 7, manual butterfly valve 8, electric valve a9, pneumatic butterfly valve 10, closed workshop 11, hanging wall a12, hanging wall b13, hanging wall c14, coke side exhaust hood 15, electric valve b16, compensator a17, pulse bag type dust remover a18, induced draft fan a19, silencer a20, chimney a21, electric valve c22, electric valve d23 and compensator b24, the device comprises a pulse bag type dust collector b25, an induced draft fan b26, a silencer b27, a chimney b28, an accident exhaust fan 29, a fresh air pipeline 30, a primary filter 31, a surface cooler 32, a refrigerating unit 33, a blower 34, an air supply outlet 35, a hanging wall d36, a hanging wall e37, a pressure rod 38, a corner brace 39, a roof b40, a purline 41, a brace 42, a parallel chord net rack 43, a plant column 44, an inter-column support 45, a gutter 46, a downpipe 47 and a column foot 48. A coke oven 1 is fixedly arranged on a foundation of a closed factory building 11, a coal loader 4 is fixedly arranged above the coke oven 1, and a coke pusher 2 and a coke quenching tank 3 which are fixedly arranged on the foundation are respectively arranged on the left side and the right side of the coke pusher 1; an ascending pipe 5 is fixedly arranged on one side of the coke oven 1 where the coal machine 4 is arranged, and an ascending pipe exhaust hood 6 fixedly hoisted at the top in the closed workshop 11 is arranged above the ascending pipe 5; the smoke exhaust pipeline of the ascending pipe smoke exhaust hood 6 penetrates through the top of the closed factory building 11 and then is communicated with two branch pipelines through a three-way pipe joint, one branch pipeline is communicated and installed on the smoke exhaust pipeline behind an electric valve a9 installed on the smoke exhaust pipeline of the furnace top smoke exhaust hood 7 after passing through a manual butterfly valve 8 installed on the branch pipeline, and the other branch pipeline is directly communicated with the atmosphere after passing through an air butterfly valve 10 installed on the branch pipeline; a smoke exhaust pipeline of a furnace top smoke exhaust hood 7 arranged above the coal loader 4 penetrates through the top of the closed workshop 11 and then is communicated with a chimney a21 pipeline through an electric valve a9, an electric valve b16, a compensator a17, a pulse bag type dust collector a18, an induced draft fan a19 and a silencer a 20; a coke side smoke exhaust hood 15 is arranged above the coke quenching tank 3, and a smoke exhaust pipeline of the coke side smoke exhaust hood 15 penetrates through the top of the closed workshop 11 and is communicated with a chimney b28 through an electric valve c22, an electric valve d23, a compensator b24, a pulse bag type dust collector b25, an induced draft fan b26 and a silencer b 27; sealing deviceAn accident exhaust fan 29 is fixedly arranged above the closed plant 11. FIG. 2 shows a cooling air system, in which an air supply outlet 35 is fixedly installed below a hanging wall b 13; the air supply outlet 35 is communicated with the air supply blower 34 through an air supply pipeline; the blower 34 communicates with the surface cooler 32 through a blower pipe; the surface cooler 32 is in bi-directional communication with a refrigeration unit 33; the surface cooler 32 is in pipe communication with the primary filter 31; the primary filter 31 is in pipeline communication with the fresh air pipeline 30. The refrigerating unit 33 is selected from lithium bromide absorption type refrigerating cooling or compression type refrigerating cooling. FIG. 3 shows a plan view of a coke oven closure: a hanging wall c14 fixedly arranged below the roof of the closed workshop 11 is arranged at one side of the coal loader 4 provided with the ascending pipe 5; the other side of the coal loader 4 is provided with a hanging wall b13 fixedly arranged below the roof of the closed workshop 11; one side of the coke quenching tank 3, which is far away from the coke oven 4, is provided with a hanging wall a12 which is fixedly arranged below the roof of the closed workshop 11; two top heads of the hanging wall a12, the hanging wall b13 and the hanging wall c14 which are longitudinally arranged are respectively and transversely provided with a hanging wall d36 and a hanging wall e 37; the hanging wall a12, the hanging wall b13 and the hanging wall c14 which are arranged longitudinally and the hanging wall d36 and the hanging wall e37 which are arranged transversely form two rectangular closed spaces above the coke quenching tank 3, the coal loader 4 and the ascending pipe 5. FIG. 4 shows a front view of a coke oven closure: the closed factory building 11 is composed of a parallel truss string frame 43, factory building columns 44, inter-column supports 45, a gutter 46, a downpipe 47, column feet 48, a pressure rod 38, a corner support 39, a roof 40, purlines 41 and a brace 42. The parallel chord net rack 43 adopts a rigid bent frame structure; the lower parts of the parallel chord net racks 43 above the coke quenching tank 3, the coal loader 4 and the ascending pipe 5 are fixedly provided with a roof 40 by purlines 41 and braces 42; a hanging wall a12, a hanging wall b13 and a hanging wall c14 are fixedly connected in the longitudinal direction below the roof 40; hanging walls d36 and e37 are transversely and fixedly hung at two ends of the longitudinal hanging wall a12, the hanging wall b13 and the hanging wall c14 respectively; 3, 5 vertical and 2 horizontal hanging walls form two closed areas for ventilation and dust removal of the coke oven, namely a coke side closed area is formed between the hanging wall a12 and the hanging wall b13, and a furnace body closed area is formed between the hanging wall b13 and the hanging wall c 14; hanging wall a12 and hanging wall b13 are connected with roof 40 through corner brace 39; the hanging wall a12 is transversely and fixedly connected with the factory building column 44 through a pressure lever 38; the roof 40 is laid on the purlines 41; the purline 41 is fixedly connected with a parallel chord net rack 43 through a brace 42; factory buildingThe column 44 is fixedly connected with the foundation through a column base 48; the drainage system of the closed factory building 11 consists of a gutter 46 and a downpipe 47; a gutter 46 is mounted on the edge of roof 40 and a downpipe 47 is mounted on the support of parallel chordal rack 43 and plant column 44 in the area above the coke pusher. FIG. 5 shows a side view of a coke oven closure: the parallel chord net rack 43 is fixedly connected with the column top of the plant column 44, and the column support 45 is reinforced in the longitudinal wall direction of the plant column 44. Fig. 6 shows an enlarged view of the hinge of the parallel chord net mount 43 to the top of the factory building column 44. FIG. 7 shows an enlarged view of the mounting relationship of the factory building column 44 to the pedestal 48. Fig. 8 is an enlarged view of the structure of the inter-column support 45. Fig. 9 is an enlarged view showing the connection structure of the plant-room column 44 and the inter-column support 45. The plant room columns 44 have a basic column pitch of 6m and a local column pitch of 12 m. The ascending pipe exhaust hood 6 above the ascending pipe 5 can be arranged in groups, and one ascending pipe exhaust hood 6 is arranged above each 3 ascending pipes; the furnace top smoke exhaust hood 7 in the furnace top dust removal is grouped according to the coal charging holes of the coal charging machine 4, and one furnace top smoke exhaust hood 7 is arranged in every 3 rows of coal charging holes. The valve 10 arranged on the upper diffusion pipe of the ascending pipe exhaust hood 6 adopts a pneumatic control valve. The method comprises the following steps: 1. sealing → 2, refrigeration → 3, ventilation and dust collection → 4, accident dissipation → 5, flue gas conveying pipeline → 6, flue gas treatment and discharge; 1. and (3) sealing: the closed factory building 11 mainly comprises a longitudinal hanging wall consisting of a hanging wall a12, a hanging wall b13 and a hanging wall c14 and two rectangular closed spaces consisting of a transverse hanging wall consisting of a hanging wall d36 and a hanging wall e 37; 1 furnace body closed space can collect all coke oven smoke emitted above the coal loader 4 and the ascending pipe 5; the other coke side closed space can collect all coke oven smoke emitted above the coke quenching tank 3; the 5-face hanging wall is mainly connected and supported through a parallel chord net rack 43, a factory building column 44, a support 45 between columns, a roof 40, a purline 41, a brace 42, a corner brace 39, a pressure bar 38, a column foot 48, a gutter 46 and a downpipe 47; the closed factory building is characterized in that: vent holes with different heights are reserved below the 5-face hanging wall, so that the coke oven smoke forms a ventilation mode of downward inlet and upward outlet; 2. refrigerating: the refrigerating system mainly comprises a fresh air pipeline 30, a primary filter 31, a surface cooler 32, a refrigerating unit 33, a blower 34 and an air supply outlet 35; the refrigerating unit 33 adopts lithium bromide absorption type refrigeration cooling or compression type refrigeration cooling; cooling system arranged in the area of the coke oven crownThe air system conveys cold air to the operation area of the coke oven top workers, so that the working environment of the coke oven top workers is improved, and the negative environmental influence of environmental pollution on the workers is reduced; 3. ventilating and collecting dust, namely arranging a coke side smoke exhaust hood 15, a furnace top smoke exhaust hood 7 and a riser smoke exhaust hood 6 for collecting dust of coke oven smoke above a coke quenching tank 3, a coal loader 4 and a riser 5 respectively; the coke side smoke exhaust hood 15, the furnace top smoke exhaust hood 7 and the ascending pipe smoke exhaust hood 6 are respectively provided with a smoke outlet pipeline, and a manual valve 8, an electric valve a9 and an electric valve c22 which are communicated with the smoke outlet pipeline; 4. an accident diffusing step, namely arranging a diffusing pipe and a pneumatic valve 10 for controlling the opening and closing of the diffusing pipe above a smoke exhaust hood 6 of the ascending pipe, arranging an accident exhaust fan 29 at the top of a closed workshop 11, opening the pneumatic valve 10 when an accident occurs, diffusing harmful smoke generated by the accident, and simultaneously starting the accident exhaust fan 29 to rapidly evacuate the harmful gas generated by the accident; 5. conveying the flue gas, namely conveying the collected coke oven flue gas to a bag-type dust remover a18 and a bag-type dust remover b25 for flue gas dust removal treatment and discharge through a manual valve 8, an electric valve a9, an electric valve c22, an electric valve b16, a compensator a17, an electric valve d23 and a compensator b24 in two paths by a coke side smoke exhaust hood 15, a furnace top smoke exhaust hood 7 and an ascending pipe smoke exhaust hood 6; 6. the flue gas treatment and discharge are that the coke oven flue gas treated by the bag-type dust remover a18 and the bag-type dust remover b25 is divided into two paths to pass through a draught fan a19, a silencer a20, a draught fan b26 and a silencer b27, passes through a chimney a21 and a chimney b28 and then is discharged to the atmosphere, the discharge concentration is less than or equal to 10mg/Nm3. And ventilation openings are reserved below the hanging wall a12, the hanging wall b13, the hanging wall c14, the hanging wall d36 and the hanging wall e37, so that the air forms a ventilation mode of downward entering and upward exiting. The discharge concentration of the flue gas after dust removal and purification by the pulse bag type dust collector a18 and the pulse bag type dust collector b25 is less than or equal to 10mg/Nm3. The air supply ports 35 are arranged every 5m, the height of the air supply ports is 1m, the air supply amount is 2500m3/h, and the cold air temperature is 10 ℃. The valve 10 installed on the upper diffusing pipe of the ascending pipe exhaust hood 6 is controlled in a pneumatic mode, when the power is off, the pneumatic valve is automatically opened by the air pressure in the air bag, and harmful gas in the ascending pipe area can be automatically discharged out of a factory building through the diffusing pipe. The accident exhaust fan 29 is an explosion-proof double-speed roof fan and adopts three paths of power supply of a double power supply and a diesel generator to supply powerWhen the coal gas overflows to produce explosion or poisoning and other emergency states and the double-circuit power supply loses power, the diesel generator is adopted to supply power, harmful gas is rapidly discharged out of a factory building, and the number of times of ventilation is designed to be more than 12.
Example 2: example 2 is otherwise the same as example 1, except as follows.
The plant room columns 44 have a basic column pitch of 12m and a local column pitch of 24 m.
The ascending pipe exhaust hood 6 above the ascending pipe 5 can be arranged in groups, and one ascending pipe exhaust hood 6 is arranged above each 5 ascending pipes; the furnace top smoke exhaust hood 7 in the furnace top dust removal is grouped according to the coal charging holes of the coal charging machine 4, and one furnace top smoke exhaust hood 7 is arranged in every 5 rows of coal charging holes.
The air supply ports 35 are arranged every 15m, the height of the air supply ports is 1.5m, the air supply volume is designed to be 5000m3/h, and the cold air temperature is 15 ℃.
Claims (10)
1. The utility model provides a coke oven seals and ventilation dust collector, includes coke oven (1), coke pusher (2), coke quenching jar (3), coal charger (4), tedge (5), characterized by: further comprising: the device comprises a rising pipe exhaust hood (6), a furnace top exhaust hood (7), a manual butterfly valve (8), an electric valve a (9), a pneumatic butterfly valve (10), a closed workshop (11), a hanging wall a (12), a hanging wall b (13), a hanging wall c (14), a coke side exhaust hood (15), an electric valve b (16), a compensator a (17), a pulse bag type dust remover a (18), an induced draft fan a (19), a silencer a (20), a chimney a (21), an electric valve c (22), an electric valve d (23), a compensator b (24), a pulse bag type dust remover b (25), an induced draft fan b (26), a silencer b (27), a chimney b (28), an accident exhaust fan (29), a fresh air pipeline (30), a primary effect filter (31), a surface cooler (32), a refrigerating unit (33), a blower (34), an air supply outlet (35), a hanging wall d (36), A hanging wall e (37), a pressure lever (38), a corner brace (39), a roof b (40), a purline (41), a brace (42), a parallel chord net rack (43), a factory building column (44), a support (45) between columns, a gutter (46), a downpipe (47) and a column foot (48); one side of the coke oven (1) is provided with a coke pushing trolley (2), and the other side is provided with a coke quenching tank (3); a coal loader (4) is arranged above the coke oven (1); an ascending pipe (5) is installed on one side of the coal loader (4), and an ascending pipe exhaust hood (6) is arranged above the ascending pipe (5); the ascending pipe exhaust hood (6) is fixedly arranged below the roof of the closed workshop (11); a furnace top smoke exhaust hood (7) is arranged above the coal loader (4), and the furnace top smoke exhaust hood (7) is fixedly arranged below the roof of the closed workshop (11); a coke side smoke exhaust hood (15) fixedly arranged below the roof of the closed workshop (11) is arranged above the coke quenching tank (3); a hanging wall c (14) fixedly arranged below the roof of the closed workshop (11) is arranged at one side of the coal loader (4) provided with the ascending pipe (5); the other side of the coal loader (4) is provided with a hanging wall b (13) fixedly arranged below the roof of the closed workshop (11); one side of the coke quenching tank (3) far away from the coke oven (4) is provided with a hanging wall a (12) fixedly arranged below the roof of the closed workshop (11); two top heads of a hanging wall a (12), a hanging wall b (13) and a hanging wall c (14) which are longitudinally arranged are respectively and transversely provided with a hanging wall d (36) and a hanging wall e (37); two rectangular closed spaces are formed above the coke quenching tank (3), the coal loader (4) and the ascending pipe (5) by a hanging wall a (12), a hanging wall b (13) and a hanging wall c (14) which are longitudinally installed and a hanging wall d (36) and a hanging wall e (37) which are transversely installed; an accident exhaust fan (29) is fixedly arranged above the closed workshop (11); an air supply outlet (35) is fixedly arranged below the hanging wall b (13); the air supply outlet (35) is communicated with the air feeder (34) through an air supply pipeline; the blower (34) is communicated with the surface cooler (32) through a blower pipeline; the surface cooler (32) is in bidirectional communication with the refrigeration unit (33); the surface cooler (32) is communicated with the primary filter (31) through a pipeline; the primary filter (31) is communicated with a fresh air pipeline (30) through a pipeline; one end of a smoke outlet connecting pipeline of the ascending pipe smoke exhaust hood (6) is connected with a manual butterfly valve (8) and then is communicated with a pipeline at the rear end of an electric valve a (9) connected with the smoke outlet connecting pipeline of the furnace top smoke exhaust hood (7); the other end of the valve is communicated with the atmosphere after passing through a pneumatic butterfly valve (10); the far end of a flue gas outlet connecting pipeline of a furnace top smoke exhaust hood (7) is communicated with an electric valve b (16), a compensator a (17), a pulse bag type dust collector a (18), an induced draft fan a (19), a silencer a (20) and a chimney a (21) in sequence; and a smoke outlet connecting pipeline of the coke side smoke exhaust hood (15) is communicated with an electric valve c (22), an electric valve d (23), a compensator b (24), a pulse bag type dust collector b (25), an induced draft fan b (26), a silencer b (27) and a chimney b (28) in sequence.
2. The coke oven closing and ventilating dust removing device as set forth in claim 1, wherein: the closed factory building (11) consists of a parallel chord net rack (43), factory building columns (44), inter-column supports (45), a gutter (46), a downpipe (47), column feet (48), pressure rods (38), corner supports (39), a roof (40), purlins (41) and braces (42); the parallel chord net rack (43) adopts a rigid bent frame structure; the lower parts of parallel chord net racks (43) above the coke quenching tank (3), the coal loader (4) and the ascending pipe (5) are fixedly provided with a roof (40) by purlines (41) and braces (42); a hanging wall a (12), a hanging wall b (13) and a hanging wall c (14) are longitudinally and fixedly connected below the roof (40); hanging walls d (36) and e (37) are transversely and fixedly hung at two ends of the longitudinal hanging wall a (12), the hanging wall b (13) and the hanging wall c (14) respectively; 3, 5 vertical and 2 horizontal hanging walls form two closed areas for ventilation and dust removal of the coke oven, namely a coke side closed area is formed between the hanging wall a (12) and the hanging wall b (13), and an oven body closed area is formed between the hanging wall b (13) and the hanging wall c (14); the hanging wall c (14) and the hanging wall b (13) are obliquely and fixedly connected with the roof (40) through a corner brace (39); the hanging wall a (12) is transversely and fixedly connected with a factory building column (44) through a pressure lever (38); the roof (40) is laid on the purlines (41); the purline (41) is fixedly connected with the parallel chord net rack (43) through a brace (42); the parallel chord net rack (43) is hinged and fixedly connected with the top of the factory building column (44); the plant room column (44) is fixedly connected with the foundation through a column base (48); a support (45) between columns is added in the longitudinal wall direction of the plant room column (44); the drainage system of the closed factory building (11) consists of a gutter (46) and a downpipe (47); the gutter (46) is arranged on the edge of the roof (40), and the downpipe (47) is arranged on the support of the parallel chord net rack (43) and the plant room column (44) in the area above the coke pusher; the basic column spacing of the plant room columns (44) is 6-12 m, and the local column spacing is 12-24 m.
3. The coke oven closing and ventilating dust removing device as set forth in claim 1, wherein: the ascending pipe exhaust hood (6) above the ascending pipe (5) can be arranged in groups, and an ascending pipe exhaust hood (6) is arranged above every 3-5 ascending pipes; the furnace top smoke exhaust hoods (7) in furnace top dust removal are grouped according to coal charging holes of the coal charging machine (4), and one furnace top smoke exhaust hood (7) is arranged in each 3-5 rows of coal charging holes.
4. The coke oven closing and ventilating dust removing device as set forth in claim 1, wherein: the refrigerating unit (33) adopts lithium bromide absorption type refrigeration cooling or compression type refrigeration cooling; a valve (10) arranged on a diffusing pipe at the upper part of the ascending pipe exhaust hood (6) adopts a pneumatic control valve.
5. A coke oven sealing and ventilating dust removing method is characterized in that: the method comprises the process flows of 1, sealing → 2, refrigerating → 3, ventilating and dust collecting → 4, accident diffusing → 5, flue gas conveying pipeline → 6, flue gas treatment and discharge; 1. and (3) sealing: the closed factory building (11) mainly comprises a longitudinal hanging wall consisting of a hanging wall a (12), a hanging wall b (13) and a hanging wall c (14) and two rectangular closed spaces consisting of transverse hanging walls consisting of a hanging wall d (36) and a hanging wall e (37); 1 furnace body closed space can collect all coke oven smoke emitted above the coal loader (4) and the ascending pipe (5); the other coke side closed space can collect all coke oven smoke emitted above the coke quenching tank (3); the 5-face hanging wall is mainly connected and supported through a parallel chord net rack (43), factory building columns (44), inter-column supports (45), a roof (40), purlines (41), braces (42), corner supports (39), pressure rods (38), column feet (48), a gutter (46) and a downpipe (47); the closed factory building is characterized in that: vent holes with different heights are reserved below the 5-face hanging wall, so that the coke oven smoke forms a ventilation mode of downward inlet and upward outlet; 2. refrigerating: the refrigerating system mainly comprises a fresh air pipeline (30), a primary filter (31), a surface cooler (32), a refrigerating unit (33), a blower (34) and an air supply outlet (35); the refrigerating unit (33) adopts lithium bromide absorption type refrigeration cooling or compression type refrigeration cooling; the cold air system arranged in the coke oven top area conveys cold air to the coke oven top worker operation area, so that the labor environment of the coke oven top worker is improved, and the negative environmental influence of environmental pollution on the worker is reduced; 3. a coke side smoke exhaust hood (15), a furnace top smoke exhaust hood (7) and a rising pipe smoke exhaust hood (6) for dust collection of the coke oven smoke are respectively arranged above the coke quenching tank (3), the coal loader (4) and the rising pipe (5); a coke side smoke exhaust hood (15), a furnace top smoke exhaust hood (7) and an ascending pipe smoke exhaust hood (6) are respectively provided with a smoke outlet pipeline, and a manual valve (8), an electric valve a (9) and an electric valve c (22) which are communicated with the smoke outlet pipeline; 4. accident diffusion, a diffusion pipe and a pneumatic valve (10) for controlling the opening and the closing of the diffusion pipe are arranged above the ascending pipe smoke exhaust hood (6), and the sealing is arrangedAn accident exhaust fan (29) is arranged at the top of the closed factory building (11), when an accident occurs, a pneumatic valve (10) is opened, harmful flue gas generated by the accident is dissipated, and meanwhile, the accident exhaust fan (29) is started to rapidly evacuate the harmful gas generated by the accident; 5. flue gas conveying, namely conveying the collected coke oven flue gas to a bag-type dust remover a (18) and a bag-type dust remover b (25) in two ways through a manual valve (8), an electric valve a (9), an electric valve c (22), an electric valve b (16), a compensator a (17), an electric valve d (23) and a compensator b (24) by a coke side smoke exhaust hood (15), a furnace top smoke exhaust hood (7) and an ascending pipe smoke exhaust hood (6) for flue gas dust removal treatment and discharge; 6. the flue gas treatment and discharge are that the coke oven flue gas treated by the bag-type dust remover a (18) and the bag-type dust remover b (25) is divided into two paths to pass through an induced draft fan a (19), a silencer a (20), an induced draft fan b (26) and a silencer b (27) and pass through a chimney a (21) and a chimney b (28) to reach the standard and then is discharged to the atmosphere, and the discharge concentration is less than or equal to 10mg/Nm3。
6. The coke oven closing and ventilating dust removing method as set forth in claim 5, wherein: and ventilation openings are reserved below the hanging wall a (12), the hanging wall b (13), the hanging wall c (14), the hanging wall d (36) and the hanging wall e (37), so that the air forms a ventilation mode of downward entering and upward exiting.
7. The coke oven closing and ventilating dust removing method as set forth in claim 5, wherein: the discharge concentration of the flue gas after dust removal and purification by the pulse bag type dust collector a (18) and the pulse bag type dust collector b (25) is less than or equal to 10mg/Nm3。
8. The coke oven closing and ventilating dust removing method as set forth in claim 5, wherein: the air supply outlets (35) are arranged at intervals of 5-15m, the height of the air supply outlets is 1-1.5m, the air supply volume is designed to be 2500-.
9. The coke oven closing and ventilating dust removing method as set forth in claim 5, wherein: the pneumatic type that valve (10) that the upper portion of rising pipe exhaust hood (6) diffuses the pipe installation adopts is controlled, and when the outage, pneumatic valve relies on the automatic opening of air pressure in the gas pocket, and harmful gas in the rising pipe region can be outside the factory building by diffusing the automatic discharge of pipe.
10. The coke oven closing and ventilating dust removing method as set forth in claim 5, wherein: the accident exhaust fan (29) selects an explosion-proof double-speed roof fan, three power supplies of a double power supply and a diesel generator are adopted, raw coke oven gas is supplied with power by the diesel generator in an emergency state of explosion or poisoning caused by overflow, when the double power supply loses power, harmful gas is rapidly exhausted out of a factory building, and the designed ventilation frequency is more than 12 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811517867.9A CN109666487B (en) | 2018-12-12 | 2018-12-12 | Coke oven sealing and ventilating dust removal device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811517867.9A CN109666487B (en) | 2018-12-12 | 2018-12-12 | Coke oven sealing and ventilating dust removal device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109666487A CN109666487A (en) | 2019-04-23 |
| CN109666487B true CN109666487B (en) | 2020-10-09 |
Family
ID=66144266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811517867.9A Active CN109666487B (en) | 2018-12-12 | 2018-12-12 | Coke oven sealing and ventilating dust removal device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109666487B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111589241A (en) * | 2020-04-16 | 2020-08-28 | 包头钢铁（集团）有限责任公司 | Converter triple dust removal clerestory and roof clerestory optimization transformation control method |
| CN112138475B (en) * | 2020-09-30 | 2024-01-30 | 中冶焦耐(大连)工程技术有限公司 | Coke oven dissipation smoke dust distributed dust removal system and working method thereof |
| CN112662408A (en) * | 2020-11-24 | 2021-04-16 | 山东省冶金设计院股份有限公司 | Continuous collection technology for unorganized discharge of coke side furnace door of coke oven machine |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3897313A (en) * | 1972-02-10 | 1975-07-29 | Sumikin Coke Co Ltd | Duct connecting device |
| US4276123A (en) * | 1980-09-22 | 1981-06-30 | Koppers Company, Inc. | Coke oven battery bench cleaning apparatus |
| US4372821A (en) * | 1981-08-31 | 1983-02-08 | United States Filter Corporation | Emission control apparatus |
| CN1613968A (en) * | 2003-11-07 | 2005-05-11 | 关西热化学株式会社 | Dust collector on cokery mouth |
| CN2828044Y (en) * | 2005-10-17 | 2006-10-18 | 李九林 | Coal charging, coke discharging smoke preventing and dust control device of movable coke oven |
| CN101085922A (en) * | 2006-06-08 | 2007-12-12 | 北京首钢中冶机电设备有限公司 | Tamping coke oven smoke treatment system and smoke treatment method thereof |
| CN101602950A (en) * | 2009-07-21 | 2009-12-16 | 大连重矿设备制造有限公司 | U type pipe is led the fume and dust car |
| CN203498316U (en) * | 2013-11-25 | 2014-03-26 | 金能科技股份有限公司 | Furnace surface dust removal device |
| KR101526916B1 (en) * | 2013-12-23 | 2015-06-09 | 주식회사 포스코 | Apparatus for drainage of duct of precipitation facilities |
| CN104826416A (en) * | 2015-05-08 | 2015-08-12 | 中冶焦耐工程技术有限公司 | Coke oven roof multi-source occasional smoke dust collecting and purifying complete equipment |
| CN107828430A (en) * | 2017-12-15 | 2018-03-23 | 芜湖新兴铸管有限责任公司 | A kind of dust excluding hood of coke oven |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8365478B2 (en) * | 2009-02-12 | 2013-02-05 | Red Leaf Resources, Inc. | Intermediate vapor collection within encapsulated control infrastructures |
-
2018
- 2018-12-12 CN CN201811517867.9A patent/CN109666487B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3897313A (en) * | 1972-02-10 | 1975-07-29 | Sumikin Coke Co Ltd | Duct connecting device |
| US4276123A (en) * | 1980-09-22 | 1981-06-30 | Koppers Company, Inc. | Coke oven battery bench cleaning apparatus |
| US4372821A (en) * | 1981-08-31 | 1983-02-08 | United States Filter Corporation | Emission control apparatus |
| CN1613968A (en) * | 2003-11-07 | 2005-05-11 | 关西热化学株式会社 | Dust collector on cokery mouth |
| CN2828044Y (en) * | 2005-10-17 | 2006-10-18 | 李九林 | Coal charging, coke discharging smoke preventing and dust control device of movable coke oven |
| CN101085922A (en) * | 2006-06-08 | 2007-12-12 | 北京首钢中冶机电设备有限公司 | Tamping coke oven smoke treatment system and smoke treatment method thereof |
| CN101602950A (en) * | 2009-07-21 | 2009-12-16 | 大连重矿设备制造有限公司 | U type pipe is led the fume and dust car |
| CN203498316U (en) * | 2013-11-25 | 2014-03-26 | 金能科技股份有限公司 | Furnace surface dust removal device |
| KR101526916B1 (en) * | 2013-12-23 | 2015-06-09 | 주식회사 포스코 | Apparatus for drainage of duct of precipitation facilities |
| CN104826416A (en) * | 2015-05-08 | 2015-08-12 | 中冶焦耐工程技术有限公司 | Coke oven roof multi-source occasional smoke dust collecting and purifying complete equipment |
| CN107828430A (en) * | 2017-12-15 | 2018-03-23 | 芜湖新兴铸管有限责任公司 | A kind of dust excluding hood of coke oven |
Non-Patent Citations (1)
| Title |
|---|
| 焦炉逸散烟尘集中治理对苯并[a]芘排放的环境影响分析;王璐璐等;《安全与环境工程》;20170925;第24卷(第5期);第90-93页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109666487A (en) | 2019-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109666487B (en) | Coke oven sealing and ventilating dust removal device and method | |
| CN205762870U (en) | A kind of tungsten powder or the device for recovering powder of tungsten carbide powder | |
| CN112807886A (en) | Air purification system of metallurgical intelligent factory building | |
| CN205295379U (en) | Converter roof cubic dust pelletizing system | |
| CN211771071U (en) | Coke oven seals high-efficient gas collection structure | |
| CN1888087A (en) | Converter shop dust collecting cover device | |
| CN109021988A (en) | The totally-enclosed coke oven smoke collection system of the collateral support of one kind and loss flue dust collecting method | |
| CN113941196A (en) | Movable electric furnace smelting secondary smoke dust collecting and purifying device for casting | |
| CN111154502A (en) | Integral covering closed dust removal device and process for coke side area of coke oven | |
| CN208980655U (en) | A kind of transverse direction supports totally-enclosed coke oven smoke collection system more | |
| CN209098712U (en) | A kind of blast furnace stops environmental protection displacement apparatus again | |
| CN208687747U (en) | A kind of three Room RTO devices administered for industrial organic exhaust gas | |
| CN202581368U (en) | Switching device for exhausting desulfurization flue gas | |
| CN101074848A (en) | System for treating kiln waste gas without external energy | |
| CN206731138U (en) | A kind of back-blowing dust removing device | |
| CN206008406U (en) | A kind of coal-burning power plant's minimum discharge device | |
| CN211638308U (en) | Low particulate matter discharges workshop structure | |
| CN206008405U (en) | A kind of coal-burning power plant's minimum discharge device with free-standing structure | |
| CN201318764Y (en) | Natural ventilating structure of multi-span factory | |
| CN206420308U (en) | SCR denitration drying and calcining all-in-one oven | |
| CN212051237U (en) | Flue gas diffusing guide device for riser of totally-closed or semi-closed coke oven | |
| CN208980650U (en) | A kind of collateral totally-enclosed coke oven smoke collection system of support | |
| CN211176847U (en) | Skid-mounted catalytic combustion device | |
| CN214991329U (en) | Delayed coking inorganization waste gas comprehensive treatment system | |
| CN211502847U (en) | Natural ventilation smoke tower device suitable for waste incineration power plant |
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 |