CN204737977U - Evaporative cooler and converter coal gas dry process dust pelletizing system - Google Patents
Evaporative cooler and converter coal gas dry process dust pelletizing system Download PDFInfo
- Publication number
- CN204737977U CN204737977U CN201520380673.4U CN201520380673U CN204737977U CN 204737977 U CN204737977 U CN 204737977U CN 201520380673 U CN201520380673 U CN 201520380673U CN 204737977 U CN204737977 U CN 204737977U
- Authority
- CN
- China
- Prior art keywords
- water
- evaporative cooler
- coal gas
- cooled tube
- gas
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to an evaporative cooler, including last barrel and lower barrel, upward be equipped with gas inlet on the barrel, be equipped with the coal gas export down on the barrel, it includes the barrel body that is used for with the coal gas heat transfer to go up the barrel, the barrel body includes an at least condenser tube, condenser tube is connected with water supply mechanism, lower barrel includes the grey storehouse of locating the bottom and locates the water spray mechanism that inside being used for is cooled down and is put out a fire coal gas. The utility model provides a converter coal gas dry process dust pelletizing system, its adoption as above evaporative cooler. The utility model provides a waste heat in the recoverable converter coal gas of evaporative cooler and converter coal gas dry process dust pelletizing system, it is energy -concerving and environment -protective, improve economic benefits.
Description
Technical field
The utility model relates to dry dedusting of converter technical field, is specifically related to a kind ofly can reclaim the evaporative cooler of afterheat of converter gas and have the converter gas dry-dedusting system of this evaporative cooler.
Background technology
At present, converter gas dry-dedusting system is the energy-recuperation system extensively adopted in metallurgical industry steel-making link.Converter gas dry-dedusting system mainly comprises gasification cooling flue system, evaporative cooler, thick, smart cleaning apparatus, induced draft fan, switching station etc.First gas temperature is reduced to about 850 DEG C by gasification cooling flue by coal gas of converter, again through about evaporative cooler spray cooling to 200 DEG C, then through electrostatic precipitator or sack cleaner dedusting, go switching station by induced draft fan again, determine to reclaim or diffuse according to the CO actual content in coal gas.
In existing dry-dedusting system, evaporative cooler adopts steel shell, ingress arranges multiple dual-medium nozzle, nozzle adopts medium generally to adopt water and steam (nitrogen), wherein steam (nitrogen) mainly plays a part to strengthen water droplet atomizing effect, and the water droplets spraying into flue gas mainly plays a part to reduce flue-gas temperature, dedusting and adjustment flue gas resistance.In this process, the water droplet of atomization mixes with coal gas of converter heat exchange, coal gas of converter temperature drops to about 200 DEG C from 850 DEG C, the while of turning, in flue gas, the dust of 20% ~ 30% is condensed into larger particles settling in ash bucket simultaneously, heat wherein between coal gas of converter 850 ~ 200 DEG C is all used for evaporating water droplets, and this part heat is not recovered utilization.
Therefore be necessary to design a kind of evaporative cooler and a kind of converter gas dry-dedusting system, to overcome the problems referred to above.
Utility model content
The purpose of this utility model is the defect overcoming prior art, and provide a kind of evaporative cooler and have the converter gas dry-dedusting system of this evaporative cooler, the waste heat in recyclable coal gas of converter, energy-conserving and environment-protective, increase economic efficiency.
The utility model is achieved in that
The utility model provides a kind of evaporative cooler, comprises upper shell and lower shell, and described upper shell is provided with gas inlet, and described lower shell is provided with gas exit; Described upper shell comprises for the cylindrical shell body with coal gas heat exchange, and described cylindrical shell body comprises at least one water-cooled tube, and described water-cooled tube is connected with water supply mechanism; Described lower shell comprises the ash silo of being located at bottom and is located at inner for the water spraying mechanism of lowering the temperature to coal gas and put out a fire.
Further, described cylindrical shell body comprises the many water-cooled tubes vertically arranged, many described water-cooled tubes connect and successively around the described cylindrical shell body of formation.
Further, each described water-cooled tube interval is arranged, and connected, and described sealing member closes the gap between adjacent two described water-cooled tubes between adjacent two described water-cooled tubes by sealing member.
Further, described cylindrical shell inner body wall is evenly laid with refractory masses.
Further, described water supply mechanism comprises inlet header and goes out to flow header, described inlet header is positioned at the below of described water-cooled tube, described in go out to flow the top that header is positioned at described water-cooled tube, each described water-cooled tube goes out to flow header with described inlet header be communicated with described respectively.
Further, the outlet going out to flow header described in is communicated with enterprise steam pipe system.
Further, described water-cooled tube is Welded Steel Pipe, weldless steel tube or fin steel pipe, and described sealing member is band steel.
Further, described water spraying mechanism comprises multiple cooling water nozzle, and multiple described cooling water nozzle is located in described upper shell.
Further, described gas inlet is positioned at described cylindrical shell bodies top, on the sidewall that described gas exit is located at described ash silo or be located between described ash silo and described water spraying mechanism.
A kind of converter gas dry-dedusting system, comprise gasification cooling flue, evaporative cooler, cleaning apparatus, induced draft fan and switching station, described evaporative cooler adopts evaporative cooler as above.
The utility model has following beneficial effect: coal gas of converter enters evaporative cooler, with the heat exchange of cylindrical shell body in upper shell, cooling water evaporation in water-cooled tube forms low-pressure saturated steam, this steam can be incorporated to workshop steam pipe system for enterprise customer, thus realizes the utilization of afterheat of converter gas.Can injection flow rate be reduced simultaneously, thus save cooling water amount.Refractory materials is laid in cylindrical shell inner body wall, refractory materials can accumulation of heat, when the low-temperature flue gas that converter stops oxygen blast and just having started to produce in oxygen blast process is by upper shell, store and have the refractory materials of heat to add heat smoke, prevent smoke condensation and flue dust attachment, ensure the normal operation of evaporative cooler and dry-dedusting system.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the evaporative cooler that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the sectional view of Fig. 1 along A-A;
Fig. 3 is the partial enlarged drawing of I part in Fig. 2;
Fig. 4 is the sectional view of Fig. 1 along B-B.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of the utility model protection.
As Fig. 1-Fig. 4, the utility model embodiment provides a kind of evaporative cooler, and comprise upper shell 3 and lower shell 6, upper shell 3 is coaxially connected with lower shell 6, and upper shell 3 is positioned at above lower shell 6.Described upper shell 3 is provided with gas inlet, and cylindrical shell bodies top is preferably located in this gas inlet, introduces coal gas of converter by gas conduit 1; Described upper shell 3 comprises for the cylindrical shell body with coal gas heat exchange, and described cylindrical shell body comprises at least one water-cooled tube 9, and described water-cooled tube 9 is connected with water supply mechanism.This cylindrical shell body only can comprise a water-cooled tube 9, and in the shape of a spiral and formation one cylindrical tube that spirals, the gap between tube wall is sealed by sealing member this water-cooled tube 9; Or comprise many annular cooling water pipes 9, the specification of annular conduit is identical and coaxially arrange, and many annular cooling water pipes 9 vertically stack gradually formation one cylindrical tube; Or comprise the many water-cooled tubes 9 vertically arranged, many described water-cooled tubes 9 connect and successively around forming described cylindrical shell body.The present embodiment preferably adopts the third structure: first, and the cylindrical shell of this kind of structure is easy to make, and adopt straight steel pipe, therefore cost is low, easy to maintenance; Secondly, water coolant enters from water-cooled tube 9 bottom, and become retrograde state with the coal gas traffic direction entered, therefore heat transfer effect is better; Again, the steam that cooling water evaporation produces is up along straight tube, and the discharge being convenient to steam utilizes.
As Fig. 2-Fig. 3, wherein, can close-packed arrays between the water-cooled tube 9 vertically arranged, reach sealing effectiveness by the contact seal between water-cooled tube 9, but this kind of mode is high for the making accuracy requirement of water-cooled tube 9, and coal gas is easy to leak; Therefore, each described water-cooled tube 9 interval is preferably set and arranges, connected by sealing member 10 between adjacent two described water-cooled tubes 9, and described sealing member 10 closes the gap between adjacent two described water-cooled tubes 9.The seal 10 both can play the effect of sealing, played a supporting role to adjacent water-cooled tube 9 simultaneously, and therefore, overall construction intensity and the stability of this evaporative cooler are better.The length of sealing member 10 is identical with the length of water-cooled tube 9; The cylindrical surface formed with the axis of each water-cooled tube 9 is for reference plane, and sealing member 10 can be positioned on this reference plane, or is positioned at the side of reference plane near the axis of cylindrical shell body, or is positioned at the side of reference plane away from the axis of cylindrical shell body; Be preferably a kind of mode after adopting, to increase the contact area of coal gas and water-cooled tube 9, thus improve heat transfer effect.Described water-cooled tube 9 is Welded Steel Pipe, weldless steel tube or fin steel pipe, and described sealing member 10 can be band steel.
As Fig. 3, as a kind of preferred structure of the present embodiment, described cylindrical shell inner body wall is evenly laid with refractory masses 11, this refractory masses 11 can the accumulation of heat when coal gas of converter temperature is higher, and when converter stops oxygen blast and when just having started oxygen blast process, the flue-gas temperature of generation is lower, when this low-temperature flue gas is by upper shell 3, store and have the refractory materials of heat to add heat smoke, prevent smoke condensation and flue dust attachment, ensure the normal operation of evaporative cooler and dry-dedusting system.
As Fig. 1, further, described water supply mechanism comprises inlet header 4 and goes out to flow header 2, described inlet header 4 is positioned at the below of described water-cooled tube 9, describedly go out to flow the top that header 2 is positioned at described water-cooled tube 9, each described water-cooled tube 9 goes out to flow header 2 with described inlet header 4 be communicated with described respectively; Water coolant enters each water-cooled tube 9 from inlet header 4, and carrying out being evaporated into as low-pressure saturated steam in the process of heat exchange with coal gas of converter, this low-pressure saturated steam enters out stream header 2 and is collected utilization.As Fig. 1, inlet header 4 with go out to flow header 2 and be annular, be conveniently connected with each water-cooled tube 9, header described in two can take mode of connection such as welding with each water-cooled tube 9; The media outlet of inlet header 4 and go out to flow the quantity of medium inlet of header 2 and decoration form should match with each water-cooled tube 9.The described low-pressure saturated steam going out to flow header 2 collection can be incorporated to enterprise's steam pipe system and utilize, or gets back to cooling water source by forming water of condensation after condenser, thus reusable edible, the heat discharged in condensation process can utilize, as generating etc.Certainly, this water supply mechanism also can take other structures, and as directly supplied water to each water-cooled tube 9 respectively by multiple water-supply pipe, but this mode exists various problems: pipeline is more, and facility investment is comparatively large, and maintenance of the equipment is inconvenient, the equipment layout that impact is on-the-spot; Water coolant in each water-cooled tube 9 certainly exists the problems such as water temperature is uneven, thermal deviation is large, causes evaporative cooler to be heated inequality, affects work-ing life and the heat-transfer effect of equipment.The mode of header is adopted then to there is not this problem.
As Fig. 1, described lower shell 6 comprises the ash silo 7 of being located at bottom and is located at inner for the water spraying mechanism of lowering the temperature to coal gas and put out a fire.Described water spraying mechanism comprises multiple cooling water nozzle 5, and multiple described cooling water nozzle 5 is located in described upper shell 3.Cooling water nozzle 5 can adopt dual-medium nozzle, medium then adopts water and steam (nitrogen), wherein steam (nitrogen) mainly plays a part to strengthen water droplet atomizing effect, the water droplets spraying into flue gas mainly plays a part to reduce flue-gas temperature, dedusting and adjustment flue gas resistance, can go out except the kindling material in coal gas of converter.In addition, described lower shell 6 is provided with gas exit 8, and described gas exit 8 can be located on the sidewall of described ash silo 7, or is located between described ash silo 7 and described water spraying mechanism, namely arranges near the top of ash silo 7.
The working process of the evaporative cooler that the present embodiment provides is as follows: enter upper shell 3 from gasification cooling flue coal gas of converter (temperature ~ 850 DEG C) out from gas inlet, in upper shell 3, carry out heat exchange with the water coolant in each water-cooled tube 9, coal gas of converter temperature drops to 350 DEG C; Then enter lower shell 6, the cooling water nozzle 5 being arranged on lower shell 6 top sprays into atomization cooling water to coal gas of converter, water droplets and coal gas of converter mixed heat transfer, and water droplets is evaporated, and coal gas of converter temperature drops to 200 DEG C.Low temperature coal gas of converter is discharged from gas exit 8, enters next technical process of dry method dust.And water coolant in each water-cooled tube 9 through with coal gas of converter heat exchange after, be vaporizated into the water vapor of 0.2 ~ 1.0MPa, this low pressure saturated vapor is discharged from going out to flow header 2, Entry Firm steam pipe system.Visible, this evaporative cooler effectively can utilize the physical sensible heat between 850 of coal gas of converter DEG C ~ 350 DEG C.
In addition, the present embodiment also provides a kind of converter gas dry-dedusting system, comprises gasification cooling flue, evaporative cooler, cleaning apparatus, induced draft fan and switching station, and described evaporative cooler adopts evaporative cooler as above.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. an evaporative cooler, is characterized in that: comprise upper shell and lower shell, and described upper shell is provided with gas inlet, and described lower shell is provided with gas exit; Described upper shell comprises for the cylindrical shell body with coal gas heat exchange, and described cylindrical shell body comprises at least one water-cooled tube, and described water-cooled tube is connected with water supply mechanism; Described lower shell comprises the ash silo of being located at bottom and is located at inner for the water spraying mechanism of lowering the temperature to coal gas and put out a fire.
2. evaporative cooler according to claim 1, is characterized in that: described cylindrical shell body comprises the many water-cooled tubes vertically arranged, many described water-cooled tubes connect and successively around the described cylindrical shell body of formation.
3. evaporative cooler according to claim 2, is characterized in that: each described water-cooled tube interval is arranged, and connected, and described sealing member closes the gap between adjacent two described water-cooled tubes between adjacent two described water-cooled tubes by sealing member.
4. the evaporative cooler according to Claims 2 or 3, is characterized in that: described cylindrical shell inner body wall is evenly laid with refractory masses.
5. the evaporative cooler according to Claims 2 or 3, it is characterized in that: described water supply mechanism comprises inlet header and goes out to flow header, described inlet header is positioned at the below of described water-cooled tube, describedly go out to flow the top that header is positioned at described water-cooled tube, each described water-cooled tube goes out to flow header with described inlet header be communicated with described respectively.
6. evaporative cooler according to claim 5, is characterized in that: described in go out to flow header outlet be communicated with enterprise steam pipe system.
7. evaporative cooler according to claim 3, is characterized in that: described water-cooled tube is Welded Steel Pipe, weldless steel tube or fin steel pipe, and described sealing member is band steel.
8. evaporative cooler according to claim 1, is characterized in that: described water spraying mechanism comprises multiple cooling water nozzle, and multiple described cooling water nozzle is located in described upper shell.
9. evaporative cooler according to any one of claim 1 to 3, is characterized in that: described gas inlet is positioned at described cylindrical shell bodies top, on the sidewall that described gas exit is located at described ash silo or be located between described ash silo and described water spraying mechanism.
10. a converter gas dry-dedusting system, comprises gasification cooling flue, evaporative cooler, cleaning apparatus, induced draft fan and switching station, it is characterized in that: described evaporative cooler adopts evaporative cooler as claimed in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520380673.4U CN204737977U (en) | 2015-06-05 | 2015-06-05 | Evaporative cooler and converter coal gas dry process dust pelletizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520380673.4U CN204737977U (en) | 2015-06-05 | 2015-06-05 | Evaporative cooler and converter coal gas dry process dust pelletizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204737977U true CN204737977U (en) | 2015-11-04 |
Family
ID=54419722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520380673.4U Active CN204737977U (en) | 2015-06-05 | 2015-06-05 | Evaporative cooler and converter coal gas dry process dust pelletizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204737977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115029500A (en) * | 2022-07-28 | 2022-09-09 | 南京华电节能环保股份有限公司 | Converter gas waste heat recovery device with water-cooled wall heat exchange plate |
-
2015
- 2015-06-05 CN CN201520380673.4U patent/CN204737977U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115029500A (en) * | 2022-07-28 | 2022-09-09 | 南京华电节能环保股份有限公司 | Converter gas waste heat recovery device with water-cooled wall heat exchange plate |
| CN115029500B (en) * | 2022-07-28 | 2023-11-17 | 南京华电节能环保股份有限公司 | Converter gas waste heat recovery device with water-cooled wall heat exchange energy plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100493669C (en) | Smoke gas purification dust removing device and the technique thereof | |
| CN109457070A (en) | A kind of blast furnace granulated slag process steam disappears bletilla heat reclaiming system | |
| CN100372605C (en) | Movable sulfurization active carbon heating regenerator and regeneration | |
| CN102559289B (en) | Biomass synthesis gas cooling and washing process and system | |
| CN201710990U (en) | Variable aperture dual-flow sieve-plate tower | |
| CN102580437A (en) | Converter primary flue gas dual-tower purification method and converter primary flue gas purification tower | |
| CN204352703U (en) | For the high efficiency cooling dust arrester of nano-powder industry | |
| CN206897161U (en) | A kind of flue gas waste heat recovery system and a kind of high-efficiency desulfurization Tower System | |
| CN204737977U (en) | Evaporative cooler and converter coal gas dry process dust pelletizing system | |
| CN209292376U (en) | A kind of blast furnace granulated slag process steam disappears bletilla heat reclaiming system | |
| CN211084113U (en) | Energy-saving and water-saving smoke white-eliminating system | |
| CN204752782U (en) | Evaporative cooler and converter coal gas dry process dust pelletizing system | |
| CN109439817B (en) | Energy-saving and white-eliminating equipment for granulating blast furnace slag | |
| CN110260679A (en) | A kind of spray column, exhaust system and boiler system | |
| CN206944111U (en) | It is substantially reduced oil burning boiler caused by nitrogen oxides | |
| CN104826471A (en) | Industrial boiler flow-guide-plate-type glass fiber reinforced plastic flue gas desulfuration column | |
| CN103834761B (en) | A kind of tower literary composition integral type converter coal gas purification tower | |
| CN211713030U (en) | Venturi cooling scrubber | |
| CN209322919U (en) | A kind of blast furnace cinder environmental protection disappears white processing and afterheat utilizing system | |
| CN102500220B (en) | Dust-removal and desulphurization device for negative pressure running boiler | |
| CN210613365U (en) | Waterproof evaporation system suitable for wet desulphurization | |
| CN209237634U (en) | A kind of funnel-cap type flue gas disappears White Tower | |
| CN203768393U (en) | Tower-venturi integrated converter gas purification tower | |
| CN202390403U (en) | Cooling and washing system for biomass synthesis gases | |
| CN202382598U (en) | Total heat type heat absorbing tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |