CN112662430B - Combined furnace body - Google Patents
Combined furnace body Download PDFInfo
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- CN112662430B CN112662430B CN201910984117.0A CN201910984117A CN112662430B CN 112662430 B CN112662430 B CN 112662430B CN 201910984117 A CN201910984117 A CN 201910984117A CN 112662430 B CN112662430 B CN 112662430B
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- furnace
- furnace body
- interlayer
- guide plate
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- 239000011229 interlayer Substances 0.000 claims abstract description 45
- 239000003245 coal Substances 0.000 claims description 20
- 239000002893 slag Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 2
- 238000002309 gasification Methods 0.000 description 11
- 239000002826 coolant Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a combined furnace body. The combined furnace body comprises at least two furnace body units, wherein interlayer channels are arranged in the walls of the at least two furnace body units; the at least two furnace body units are assembled into a furnace body along the axial direction, interlayer channels of adjacent furnace body units are communicated through balance pipes, and the adjacent furnace body units are fixedly connected through connecting pieces; the interlayer channels of the furnace units and the balance pipes form a furnace interlayer channel, and the interlayer channel of the furnace is provided with an interlayer channel inlet and an interlayer channel outlet. The combined furnace body is convenient to install and maintain.
Description
Technical Field
The invention relates to a combined furnace body structure, which is particularly suitable for the fields of metallurgy, coal gasification, chemical industry and the like.
Background
The existing gasification furnace body is of an integrated structure, such as a pressurized fixed bed slag gasification furnace disclosed in CN 103436296B. In actual production, the furnace has the following problems:
(1) The integrated gasifier is suitable for one-step design forming, fixed model, convenient and reliable mounting of internal parts, and does not need frequent maintenance of the internal parts and cleaning of the form of the gasifier for storing coal in the gasifier;
(2) And the stacking height of the coal beds in the fixed bed slag gasifier is high, once the phenomenon that a slag discharge port is blocked or the slag discharge is not smooth occurs, the furnace must be stopped, operators enter the furnace, all the coal beds and slag layers stacked above the slag pool are completely emptied, the slag pool and the slag discharge port are exposed, and the damaged slag discharge port is replaced or the slag discharge port is dredged, so that the coal can be re-fed and started. The whole process is time-consuming and labor-consuming, and has certain danger;
(3) In the existing fixed bed slag gasifier, internal parts can only be installed into the gasifier through upper and lower flanges of the gasifier, slag pool parts with the size larger than that of an upper flange opening can only be split into a plurality of small parts, one block of slag pool parts passes through the upper flange opening of the hoisting equipment and is sent into the gasifier, and then the slag pool parts are assembled in the gasifier, so that the installation process is inconvenient, and meanwhile, the slag pool part structure is complex;
(4) The integral gasification furnace has the defects that besides being inconvenient for the installation and maintenance of internal parts and the cleaning and the coal digging of the integral gasification furnace, if the volume of a single furnace body is too large, the integral gasification furnace is inconvenient to transport and cannot be reformed in the later period.
Disclosure of Invention
Aiming at the defects or shortcomings in the prior art, the invention provides a combined furnace body.
The combined furnace body provided by the invention comprises at least two furnace body units, wherein interlayer channels are arranged in the walls of the at least two furnace body units;
The at least two furnace body units are assembled into a furnace body along the axial direction, interlayer channels of adjacent furnace body units are communicated through balance pipes, and the adjacent furnace body units are fixedly connected through connecting pieces;
The interlayer channels of the furnace body units and the balance pipes form a furnace body interlayer channel, and the furnace body interlayer channel is provided with an interlayer channel inlet and an interlayer channel outlet.
In some embodiments, each furnace unit of the invention comprises an outer cylinder body and an inner cylinder body, wherein the inner cylinder body is positioned in the outer cylinder body, and a gap is reserved between the inner cylinder body and the outer cylinder body to form an interlayer channel.
In a preferred scheme, at least two balance pipes connected with the same furnace body unit are arranged and uniformly distributed along the circumferential direction of the furnace body.
Preferably, the balance tube structure of the present invention is of the "[" or "]" type.
Preferably, the balance pipe on the furnace unit of the present invention has its inlet close to the connector.
In some embodiments, the connecting piece of the invention comprises two flange joints, wherein the two flange joints are used for fixedly connecting two furnace body units, a groove is arranged on each flange joint, and after the flange joints are assembled with the furnace body units, the groove is an axial extension structure of an interlayer channel on the corresponding furnace body unit.
Preferably, a guide plate matched with the furnace body structure is arranged in a sandwich channel of the furnace body unit close to the flange joint, and the guide plate extends to a groove of the flange joint.
Preferably, the baffle of the present invention is mounted at one end near the balance pipe joint and at the other end extends to the end of the furnace unit through or across the balance pipe joint.
More preferably, the end of the deflector close to the flange joint or the groove is provided with a plurality of protrusions at intervals.
Further preferably, a plurality of protrusions are provided on one or both side walls of the baffle plate of the present invention.
Specifically, the trend of the materials in the interlayer channel of the furnace body is opposite to that of the materials in the furnace body.
The invention also provides a coal gasifier, the furnace body structure of the coal gasifier is the combined furnace body structure, wherein the furnace body unit at the upper part is provided with a raw material coal inlet, and the furnace body unit at the lower part is provided with a slag discharge port.
The invention has the advantages that:
(1) The furnace body structure of the invention ensures that the size of the internal parts is not limited by the sizes of the upper flange and the lower flange of the gasifier, the internal parts can be directly assembled and then put into the gasifier from the middle flange, and then the upper part of the furnace body is folded, thereby being convenient to install.
(2) The gasifier is designed into two sections in the structure of the gasifier, and the middle is connected through the flange which is specially designed, so that different coal types, different gas taking modes, different fuels, even solid waste and biomass combustion gasification in the future are facilitated, the transformation efficiency of the gasifier is improved, and equipment such as a coal distributor, a tar ejector and the like are conveniently increased.
(3) When the furnace body structure is used for maintaining furnace body internals or digging a furnace, the upper part of the furnace body can be removed, so that the construction of the lower part of the furnace body is facilitated, meanwhile, the coal and slag layers in the furnace are conveniently emptied, operators do not need to enter a closed space, and the safety is improved; further, if the later process is adjusted or modified, the height of the gasifier needs to be changed, the number of sections of the gasifier can be correspondingly increased or decreased, and the possibility is provided for the later modification of the gasifier.
Drawings
FIG. 1 is a reference schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the balance tube and connector according to the present invention;
FIG. 3 is a schematic flow diagram of coolant in a sandwich channel at a balance tube and connector according to the present invention;
FIG. 4 is a reference schematic view of a flanged joint according to the invention;
fig. 5 shows a coal gasification furnace structure according to an embodiment of the invention.
Detailed Description
Unless otherwise limited by the specific circumstances, the following definitions apply to the terms used in this specification.
In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In case of conflict, the present specification, including definitions, will control.
For the purposes of the present application, some terms used in the present document have the following meanings:
As used herein, the azimuthal and directional terms "axial," "radial," "upper," "lower," and "upper" are used in accordance with the specific directions on the page of the drawing figures of the specification.
Example 1:
Referring to fig. 1 and 2, the combined furnace body of the invention comprises at least two furnace body units 1, wherein an interlayer channel is arranged in the wall of each furnace body unit, the at least two furnace body units are assembled into a furnace body, the interlayer channels of two adjacent furnace body units are communicated through a balance pipe 2, and the two adjacent furnace body units are fixedly connected by adopting a connecting piece; the sandwich channels and balance pipes of all furnace units form an integral communication sandwich channel of the furnace, and the sandwich channel is provided with an inlet and an outlet. During operation, the relative positions of the inlet and the outlet can be designed according to the trend of the materials, for the coal gasification furnace, the interlayer channel is used for passing the coolant, and the trend of the coolant in the interlayer channel is opposite to the trend of the cooled object in the furnace, so that the materials to be cooled in the furnace are sufficiently cooled.
The structure of each furnace unit in the at least two furnace units can be the same or different except the above-defined structure, mainly the corresponding structure is selected and designed or not according to the working requirement of the whole furnace, in a specific scheme, it can be presumed that the upper furnace unit and the lower furnace unit are provided with (including installing) the structure or the component required by the working according to the working requirement, the upper furnace unit is provided with a raw material inlet, and the lower furnace unit is provided with an outlet.
The balance pipe plays a role in conveying materials in the interlayer channels of adjacent furnace body units, the structure of the balance pipe can be designed into a reasonable structural form according to the overall structure and the space arrangement condition of the furnace body, a specific structural diagram is shown in 1 and 2, the balance pipe is in a 'or' shape ', the balance pipe also comprises a shape similar to or similar to a' or 'shape', and the bent ends at the two ends of the balance pipe are communicated with the interlayer channels of the corresponding furnace body units. In order to ensure uniformity of materials in the interlayer channel, a plurality of balance pipes are designed, the inner diameters of the plurality of balance pipes are the same, and the balance pipes are uniformly distributed along the circumferential direction of the furnace body. In a preferred embodiment, the connecting opening of the balance tube and the furnace unit is close to the connecting piece.
On the basis of the scheme, the adjacent furnace units can be connected by adopting a conventional connection scheme in the art, such as threaded connection, flange connection and the like, and a preferable flange connector structure is that two adjacent furnace units are connected by two flange joints 3, and is different from the conventional flange structure, as shown in fig. 4, a groove 6 is formed on one side surface of each flange joint, which is directly connected with the furnace unit, in particular an annular groove is formed on the annular flange joint, and after the flange joint and the furnace units are assembled together, the groove is in particular an extending structure of an interlayer channel on the furnace unit, that is, the groove forms a part of the interlayer channel structure, so that the coolant is ensured to be distributed outside the furnace as far as possible, and the effect of comprehensive and balanced cooling is achieved. In order to ensure the sealing effect, after the through holes of the lug parts are assembled and fixed between the two flange joints, a sealing layer is arranged outside.
In order to ensure that no dead zones exist in the sandwich channel, in particular that the cooling medium can reach all areas in the channel, a deflector 4 is arranged in the sandwich channel after the furnace body unit and the flange joint are assembled, the deflector can be designed into a joint matched with the furnace body structure, such as a cylindrical structure, and is positioned at or near the end part provided with the flange joint, and meanwhile, the deflector extends into a groove in the flange joint. A specific baffle mounting structure is that the longitudinal section of the baffle wall is L-shaped, and also comprises a part similar to or approximate to the L-shaped part, wherein the bent part at the bottom of the L-shaped part is mounted on the side wall in the interlayer channel, the mounting position is close to the balance pipe through opening, and the other end of the baffle extends into the groove through or across the balance pipe through opening, so that the axial length of the baffle depends on the mounting position of the balance pipe, as shown in figure 2, the upper baffle is longer than the lower baffle, and the mounting structure can ensure that materials are particularly in a cold area and uniformly distributed in the interlayer channel, particularly at the position of the balance pipe through opening, and the flow trend of the materials in the interlayer channel under the structure is shown by an arrow in figure 3.
In a more preferred scheme, the side walls at two sides of the groove are respectively butted with the inner cylinder body and the outer cylinder body of the furnace body unit, and for the convenience of positioning, the axial dimension of the outer side wall 7 of the groove is larger than that of the outer side part 8, as shown in fig. 4.
In a still more preferred embodiment, as shown in fig. 3, a plurality of spaced projections or support posts (not shown) are disposed on the baffle near the bottom end or top 12 of the flange joint or recess to prevent the baffle from dying from the flange and to provide room for fluid flow. Further, a plurality of protrusions or supporting columns (not shown in the figure) can be arranged on one side or two side walls of the guide plate, so that the guide plate and the inner wall of the sleeve are prevented from being attached to each other to block the flowing space, and further, when the guide plate is a cylindrical guide plate, a plurality of protrusions or supporting columns are arranged on the inner wall and the outer wall of the cylindrical guide plate. In a further scheme, a jacket drain outlet (not shown in the figure) is arranged at the lower part of the furnace body unit positioned at the bottommost part of the furnace body and is used for periodically discharging sundries in the jacket.
The combined furnace body structure is suitable for blast furnace structures such as coal gasification, chemical industry, metallurgy and the like. Specifically, for example, in a fixed bed pressurized coal gasifier, the interlayer channel arranged in the wall of the furnace body unit is mainly used for introducing coolant, and the interlayer channel can be assembled by an outer cylinder body and an inner cylinder body, and can also be realized by adopting other conventional structural forms in the field.
The combined gasifier can be split and modularized, and furnace body units can be added according to the requirements, and jacket balance pipes and guide plates are correspondingly arranged.
Example 2:
The combination shown in fig. 5 is a coal gasification furnace structure, comprising a top furnace unit 10, a bottom furnace unit 10, a slag discharging port 11, a balance pipe 2 and a flange joint 3, wherein the furnace unit positioned at the bottom of the furnace is provided with an interlayer channel inlet (not shown in the figure); an interlayer channel outlet 5 (shown in figure 2) is arranged on the furnace body unit positioned at the top of the furnace body, and is close to the bottom of the furnace body unit, and cooling water in the interlayer channel enters the jacket from the bottom of the furnace body until the jacket at the lower part of the furnace body is filled up, and then enters the jacket at the upper part of the furnace body through a balance pipeline. The jacket water inlet is arranged below the balance pipe, the jacket water outlet is arranged above the balance pipe, as shown in fig. 2, the guide plate is used for enabling cooling water to forcedly flow through the area I and the area II, so that no water flows through the two areas to form a dead zone, and the jacket cooling water from the bottom is forcedly bypassed through the area above the pipe orifice by using the area I as an example and then enters the balance pipeline.
Claims (9)
1. The combined furnace body is characterized by comprising at least two furnace body units, wherein interlayer channels are arranged in the walls of the at least two furnace body units;
The at least two furnace body units are assembled into a furnace body along the axial direction, interlayer channels of adjacent furnace body units are communicated through balance pipes, and the adjacent furnace body units are fixedly connected through connecting pieces;
the interlayer channels of the furnace body units and the balance pipes form a furnace body interlayer channel, and an interlayer channel inlet and an interlayer channel outlet are arranged on the furnace body interlayer channel;
the connecting piece comprises two flange joints, the two flange joints are used for fixedly connecting the two furnace body units, a groove is formed in each flange joint, and after the flange joints are assembled with the furnace body units, the groove is an axial extension structure of an interlayer channel on the corresponding furnace body unit;
a guide plate matched with the furnace body structure is arranged in an interlayer channel of the furnace body unit, which is close to the flange joint, and the guide plate extends to a groove of the flange joint;
one end of the guide plate is arranged near the balance pipe joint, and the other end of the guide plate extends to the end part of the furnace body unit through or across the balance pipe joint;
The guide plate is of a cylindrical structure, the longitudinal section of the guide plate wall is L-shaped, the bent part of the bottom of the L-shaped guide plate wall is arranged on the side wall in the interlayer channel, the installation position of the guide plate is close to the balance pipe through hole, and the other end of the guide plate passes through or spans the balance pipe through hole and extends into the groove.
2. The combination furnace of claim 1 wherein each furnace unit comprises an outer cylinder and an inner cylinder, the inner cylinder being positioned within the outer cylinder with a gap therebetween forming a sandwich channel.
3. The combination furnace as claimed in claim 1, wherein there are at least two balance pipes for connecting the same group of furnace units, and the balance pipes are uniformly distributed along the circumferential direction of the furnace.
4. The combination furnace of claim 1 or 2, wherein the balance tube is "[" or "]".
5. The combination furnace of claim 1 or 2, wherein the balance tube on the furnace unit has a port located adjacent to the connector.
6. The combination furnace of claim 1, wherein the end of the deflector adjacent to the flange joint or the groove is provided with a plurality of protrusions at intervals.
7. The combination furnace of claim 1, wherein a plurality of protrusions are provided on one or both side walls of the deflector.
8. The combination furnace of claim 1 wherein the material in the furnace body interlayer channel has an opposite orientation to the material in the furnace body.
9. A coal gasifier, characterized in that the furnace structure of the coal gasifier is the furnace structure of any one of claims 1-8, wherein the upper furnace unit is provided with or equipped with a raw coal inlet, and the lower furnace unit is provided with or equipped with a slag discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984117.0A CN112662430B (en) | 2019-10-16 | 2019-10-16 | Combined furnace body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910984117.0A CN112662430B (en) | 2019-10-16 | 2019-10-16 | Combined furnace body |
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| Publication Number | Publication Date |
|---|---|
| CN112662430A CN112662430A (en) | 2021-04-16 |
| CN112662430B true CN112662430B (en) | 2024-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910984117.0A Active CN112662430B (en) | 2019-10-16 | 2019-10-16 | Combined furnace body |
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| Country | Link |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232859A (en) * | 2013-05-16 | 2013-08-07 | 厦门大学 | Multistage downdraft biomass gasifier |
| CN212222879U (en) * | 2019-10-16 | 2020-12-25 | 西安航天源动力工程有限公司 | A combined furnace body and coal gasifier |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB913029A (en) * | 1960-05-21 | 1962-12-12 | Asea Ab | Low frequency induction furnace of the melting channel type |
| CN102559275B (en) * | 2012-03-13 | 2013-08-07 | 天津辰创环境工程科技有限责任公司 | Water-cooling gasification furnace |
| DE102015212179A1 (en) * | 2015-06-30 | 2017-01-05 | Siemens Aktiengesellschaft | Multi-pass slag outlet body for fuel carburetor |
| CN206328345U (en) * | 2016-11-17 | 2017-07-14 | 天津市天佑环保设备有限公司 | A kind of water gas generator for being easy to slag dumping |
| CN107083249A (en) * | 2017-05-05 | 2017-08-22 | 华东理工大学 | A kind of fine coal prepares air flow bed pyrolysis oven, the system and method vented one's spleen rich in methane thermal |
-
2019
- 2019-10-16 CN CN201910984117.0A patent/CN112662430B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232859A (en) * | 2013-05-16 | 2013-08-07 | 厦门大学 | Multistage downdraft biomass gasifier |
| CN212222879U (en) * | 2019-10-16 | 2020-12-25 | 西安航天源动力工程有限公司 | A combined furnace body and coal gasifier |
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| CN112662430A (en) | 2021-04-16 |
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