CN210543459U - Slag condensing device of hot blast stove - Google Patents
Slag condensing device of hot blast stove Download PDFInfo
- Publication number
- CN210543459U CN210543459U CN202020096722.2U CN202020096722U CN210543459U CN 210543459 U CN210543459 U CN 210543459U CN 202020096722 U CN202020096722 U CN 202020096722U CN 210543459 U CN210543459 U CN 210543459U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- condensing
- hot blast
- blast stove
- slag
- 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
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a slag condensing device of a hot blast stove, which relates to the technical field of industrial boilers. The utility model discloses a slag condensing device of hot blast stove, include: the shell is provided with a flue gas inlet and a flue gas outlet, a flue gas channel communicated with the flue gas inlet and the flue gas outlet is arranged in the shell, and the flue gas channel comprises a condensation section; the condensing pipe is arranged at the condensing section of the flue gas channel and used for cooling the flue gas flowing through the flue gas channel, and a condensing medium inlet end and a condensing medium outlet end of the condensing pipe respectively extend out of the shell; the problems that smoke ash blocks the heating surface and smoke escapes and the slag condensing effect is poor in the prior art are effectively solved, the slag condensing effect is good, and the continuous and stable operation of a drying system is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of industrial boiler, biomass fuel burning, especially, relate to a slag condensing device of hot-blast furnace.
Background
The environmental protection requirement of changing a coal-fired hot blast stove into a biomass hot blast stove is just started, and the existing changing technology has some defects. Most of the combustion-changing schemes are to slightly change the structure of the original coal-fired furnace. The phenomenon that the heating surface is blocked by flue gas ash exists in coal-fired furnaces adopting high-ash coal and hot blast furnaces which are changed to burn biomass, the service life is influenced, and the heat exchange efficiency of the heat exchange tube bundle is reduced.
Aiming at the problem that the heating surface is blocked by the flue gas ash slag, the ash in the flue gas can be removed by adopting an ash removing device. But the ash removal effect is not ideal, and the heat exchange efficiency, the subsequent use and the service life are still influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a slag condensing device of a hot blast stove, which mainly aims at solving the problem that the smoke ash blocks the heating surface and the slag condensing effect is relatively poor in the prior art.
In order to solve the technical problem, the utility model provides a slag condensing device of a hot blast stove, which comprises a shell, wherein a flue gas inlet and a flue gas outlet are arranged on the shell, a flue gas channel communicated with the flue gas inlet and the flue gas outlet is arranged in the shell, and the flue gas channel comprises a condensing section;
the condensing tube is arranged at the condensing section of the flue gas channel and used for cooling flue gas flowing through the flue gas channel, and a condensing medium inlet end and a condensing medium outlet end of the condensing tube respectively extend out of the shell.
As the preferred scheme of the utility model, the flue gas entry is located the top of condensation segment, the exhanst gas outlet is located the below of condensation segment.
As another preferred scheme of the utility model, the flue gas entry is provided with the first adapting unit that is used for connecting the exhanst gas outlet of hot-blast furnace, the exhanst gas outlet is provided with the second adapting unit that is used for connecting the heating device.
As another preferred scheme of the utility model, still including set up in the deposit room of shell bottom, the exhanst gas outlet set up in the deposit room top.
As another preferable scheme of the utility model, still include the setting in the blowing of settling chamber mouthful.
As another preferable scheme of the utility model, the outside of the purge port of shell is provided with compressed air pulse purge valve.
As another preferred scheme of the utility model, the pipe that condenses is the multirow setting and constitutes a plurality of heating surfaces that condense, the heating surfaces that condense are parallel to each other.
As another preferable aspect of the present invention, the axial direction of the condensation pipe is perpendicular to the axial direction of the inner cavity of the housing.
As another preferred scheme of the utility model, the shell is cylindrical, the settling chamber top connect in the shell bottom, the settling chamber bottom is the ash hole.
As another preferable aspect of the present invention, the axial cross section of the settling chamber is a trapezoid having a wide upper portion and a narrow lower portion.
As another preferable aspect of the present invention, the axial cross section of the settling chamber is a trapezoid having a wide upper portion and a narrow lower portion.
The utility model discloses following beneficial effect has been gained: the flue gas gets into must process in the condensation tube the chamber that condenses, the ash content that has the fusibility in making the flue gas from this condenses the outer surface of tube at the sediment device of congealing and condenses and appear, effectual flue gas lime-ash blockage heating surface, flue gas escape, the not good problem of sediment effect of congealing among the prior art of having solved, it is effectual to congeal the sediment, has ensured drying system steady operation in succession.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention unduly. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of a slag condensing device of a hot blast stove of the present invention.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
The invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.
The specific embodiment is as follows:
as shown in fig. 1, the slag condensing device of a hot blast stove according to an embodiment of the present invention is shown in a schematic structural diagram, and includes a housing 1, a flue gas inlet 3 and a flue gas outlet 4 are provided on the housing 1, a flue gas channel communicating the flue gas inlet 3 and the flue gas outlet 4 is provided in the housing 1, and the flue gas channel includes a condensation section 7;
Condensing medium can be cold wind, cold water etc. and condensing medium's change, the mode and the device of circulation can use air-cooler, the cold water circulating device who generally is suitable for among the prior art, communicate in each condensation pipe 2 through the hose, last effectual condensation ash content.
The condensation pipe 2 is preferably a corrosion resistant pipe.
In some embodiments of the utility model, flue gas inlet 3 is located the top of condensation segment 7, and exhanst gas outlet 4 is located the below of condensation segment 7.
In some embodiments of the present invention, the housing 71 is a sealed enclosure structure.
The utility model discloses an in some embodiments, flue gas entry 3 is provided with the first adapting unit that is used for connecting the exhanst gas outlet 4 of hot-blast furnace, and exhanst gas outlet 4 is provided with the second adapting unit that is used for connecting the heating device. Can be connected between the high-temperature flue gas outlet 4 of the traditional hot blast stove and the heated device, solves the technical problem that the prior art lacks an independent slag condensing device with wide application range, and is convenient to use.
The utility model discloses an in some embodiments, flue gas entry 73 is provided with the sealed flue of first section heat preservation that is used for connecting the exhanst gas outlet of hot-blast furnace, and exhanst gas outlet 74 is provided with the sealed flue of second section heat preservation that is used for connecting the tubular heating surface. Can be used for connecting heating devices of the traditional hot blast stove, and solves the problems of large heat dissipation capacity, serious air leakage and the like of the flue connecting part in the prior art.
The utility model discloses an in some embodiments, still including setting up in the deposit room 5 of shell 1 bottom, the exhanst gas outlet 4 sets up in deposit room 5 top. The ash content that condenses on the pipe 2 that condenses can be leading-in the deposit room 5, and the exhanst gas can lead to from the exhanst gas outlet 4 of deposit room 5 top, gets into heat receiver or heat transfer device, greatly reduced the melting ash content in the flue gas or other ash content that can condense, reduce clean work volume and heat receiver or heat transfer device's life, ensured drying system continuous steady operation.
In some embodiments of the present invention, the device further comprises a purging opening disposed in the settling chamber 5. And a compressed air pulse purging valve is arranged outside a purging port of the shell 1. The pulse valve is opened periodically to clean the accumulated ash in the tube bundle, so that the blockage of the heat exchange surface by the molten ash can be effectively avoided. The condensation pipes 2 are arranged in a plurality of rows, and the vertical positions of the condensation pipes 2 in two adjacent rows are mutually staggered. The flue gas can be condensed through the heat transfer of each row of condensing tubes 2 many times when passing through, fully separate out the ash content, and the effect is better.
In some embodiments of the present invention, the condensation tubes 2 are arranged in multiple rows to form multiple condensation heating surfaces, and the condensation tubes 2 in two adjacent rows are parallel to each other. When the flue gas is introduced from the flue gas inlet 3, the flue gas passes through a plurality of rows of condensation heating surfaces, namely a plurality of rows of staggered condensation pipes 2, so that the condensation efficiency is higher.
In other embodiments of the experimental novel concept, the condensing tubes 2 in two adjacent rows are staggered with each other in a direction perpendicular to the condensing heating surface. The heating surface of the solidified slag is composed of a plurality of rows of corrosion-resistant pipelines, the pipelines are arranged at large longitudinal intervals and large transverse intervals, and secondary air is used as a cold source to pass through the inside of the pipelines and exchange heat with flue gas outside the pipelines, so that the fused ash is separated out on the heating surface of the solidified slag. For example, the transverse spacing of the pipelines is 300mm, and the longitudinal spacing of the pipelines is 150mm, so that the smoke resistance is reduced, and the ash removal is facilitated.
In this embodiment, the axial direction of the coagulation tube 2 is perpendicular to the axial direction of the inner cavity of the housing 1.
In some embodiments of the present invention, the axial direction of the condensation pipe 2 is perpendicular to the axial direction of the inner cavity of the housing 1.
In some embodiments of the present invention, the housing 1 is cylindrical, the top of the settling chamber 5 is connected to the bottom of the housing 1, and the bottom of the settling chamber 5 is the ash outlet 6.
In some embodiments of the present invention, the axial cross section of the settling chamber 5 is trapezoidal with a wide upper part and a narrow lower part. Is not easy to accumulate dust and is convenient to use.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (10)
1. The utility model provides a slag condensing device of a hot blast stove, which is characterized by comprising:
the shell is provided with a flue gas inlet and a flue gas outlet, a flue gas channel communicated with the flue gas inlet and the flue gas outlet is arranged in the shell, and the flue gas channel comprises a condensation section;
the condensing tube is arranged at the condensing section of the flue gas channel and used for cooling flue gas flowing through the flue gas channel, and a condensing medium inlet end and a condensing medium outlet end of the condensing tube respectively extend out of the shell.
2. The hot blast stove slag condensing device according to claim 1, wherein said flue gas inlet is located above said condensing section and said flue gas outlet is located below said condensing section.
3. The hot blast stove slag condenser according to claim 1, wherein the flue gas inlet is provided with a first connecting part for connecting a flue gas outlet of the hot blast stove, and the flue gas outlet is provided with a second connecting part for connecting a heated device.
4. The hot blast stove slag condensing device according to claim 1, further comprising a settling chamber disposed at the bottom of the outer shell, wherein the flue gas outlet is disposed above the settling chamber.
5. The hot blast stove slag condensing device according to claim 4, further comprising a purging opening provided in the settling chamber.
6. The hot blast stove slag condensing device according to claim 5, characterized in that a compressed air pulse purge valve is arranged outside the purge port of the outer shell.
7. The hot blast stove slag condensing device according to claim 1, wherein the condensing pipes are arranged in a plurality of rows to form a plurality of condensing heating surfaces, and the condensing heating surfaces are parallel to each other.
8. The hot blast stove slag condensing device according to claim 1, wherein an axial direction of the condensing pipe is perpendicular to an axial direction of the inner cavity of the outer shell.
9. The hot blast stove slag condensing device according to claim 4, wherein said housing is cylindrical, said settling chamber top is connected to said housing bottom, and said settling chamber bottom is an ash outlet.
10. The hot blast stove slag condensing device according to claim 9, wherein the axial cross section of the settling chamber is a trapezoid with a wide upper part and a narrow lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020096722.2U CN210543459U (en) | 2020-01-16 | 2020-01-16 | Slag condensing device of hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020096722.2U CN210543459U (en) | 2020-01-16 | 2020-01-16 | Slag condensing device of hot blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210543459U true CN210543459U (en) | 2020-05-19 |
Family
ID=70665831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020096722.2U Active CN210543459U (en) | 2020-01-16 | 2020-01-16 | Slag condensing device of hot blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210543459U (en) |
-
2020
- 2020-01-16 CN CN202020096722.2U patent/CN210543459U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107860022B (en) | Variable flue section tubular air preheater | |
| CN106765009B (en) | Continuous heat accumulating and burning gas heat pipe steam generator and method for comprehensively recovering waste heat of flue gas | |
| CN109141042A (en) | Temperature wave ejector half electric heating fusion apparatus flue gas step recycling system | |
| CN108426458A (en) | A kind of glass furnace fume bypass system for desulfuration and denitration | |
| CN208587896U (en) | A kind of ultralow nitrogen vapor boiler | |
| CN104832934A (en) | Boiler flue gas dust removal and waste heat recovery energy-saving device | |
| CN207262407U (en) | One kind is exempted to use the low nitrogen condensed type combustion gas steam boiler of formality | |
| CN106123340A (en) | Equal-resistance flow-equalizing preheating backwater condensing heat exchanger | |
| CN106051800A (en) | Energy-saving and environment-friendly two-circuit parallel type smoke waste heat recycling device and method | |
| CN210543459U (en) | Slag condensing device of hot blast stove | |
| CN208606602U (en) | Electric heating fusion apparatus flue gas step recycling system | |
| CN111059553A (en) | Full-flow ash removal incineration system applied to high-ash-content working condition | |
| CN202928095U (en) | Heat exchanging structure with air pre-heater | |
| CN206508767U (en) | Flue gas disappears white equipment | |
| CN213778733U (en) | Heat pipe low-temperature economizer | |
| KR200284927Y1 (en) | High Efficiency Heat Recovery Apparatus | |
| CN205424990U (en) | Durable air heater | |
| CN104315872B (en) | Boiler flue gas waste heat recycling and energy-saving device with boiler flue gas dust removing effect | |
| CN209386313U (en) | Segmented water- to-water heat exchanger | |
| CN208887391U (en) | Temperature wave ejector half electric heating fusion apparatus waste heat recycling system | |
| CN107062613A (en) | A kind of method that wall-hung boiler is changed condensing by on-condensing | |
| CN208898929U (en) | A kind of blast-furnace hot-air kiln gas/coal gas/air double-preheating device | |
| CN210197707U (en) | Heat exchange device and combustion heat equipment with same | |
| CN207159151U (en) | A kind of pyrolkigneous liquid collecting device | |
| CN206274230U (en) | A kind of superconduction fluidised form heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |