CN109321278A - Lurgi gasifier gear collet backplate - Google Patents
Lurgi gasifier gear collet backplate Download PDFInfo
- Publication number
- CN109321278A CN109321278A CN201811269740.XA CN201811269740A CN109321278A CN 109321278 A CN109321278 A CN 109321278A CN 201811269740 A CN201811269740 A CN 201811269740A CN 109321278 A CN109321278 A CN 109321278A
- Authority
- CN
- China
- Prior art keywords
- backplate
- doughnut
- steel plate
- shaped steel
- gear
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/34—Grates; Mechanical ash-removing devices
- C10J3/40—Movable grates
- C10J3/42—Rotary grates
Abstract
The invention discloses Lurgi gasifier gear collet backplate, it is related to a kind of protective device of fire grate gear in gasification furnace；Solve the problems, such as that tradition dispersion backplate is easy to fall off；The backplate is a doughnut-shaped steel plate, the height of the doughnut-shaped steel plate is 40-50cm, multiple stress holes are evenly arranged on the doughnut-shaped steel plate, the spacing in the adjacent stress hole is 30-40cm, the upper end of the doughnut-shaped steel plate is provided with the securing plate of annular, and the angle of the securing plate inner wall and doughnut-shaped steel plate inner wall is 120-150 °；The present invention reduces the workloads overhauled to Lurgi gasifier grate section, extend the service life of fire grate gear, and it avoids the parking accident caused by former backplate is fallen and eliminates since backplate falls the risk blocked when ash locks valve overhaul plan, and manufacture craft is simple, and it is convenient to overhaul；Economic benefit is improved indirectly.
Description
Technical field
The present invention relates to a kind of protective devices of fire grate gear in gasification furnace, and in particular to Lurgi gasifier gear collet shield
Plate.
Background technique
A kind of mobile bed coal gasification apparatus of pressurization of Lurgi gasifier, coal and gasifying agent counter current contacting.Lurgi gasifier
Grate system is the core component of gasification furnace, plays a part of broken grey ash discharge adjustment grieshoch, as shown in Figure 1, former design gear wheel 1
12 pieces of backplates 2 of small collet top installation, protect gear collet, and mounting means is top mounting, and lower section weldering carries out
Installation, but in the case of a high temperature by actual motion discovery, lower part weld seam is easy cracking, is squeezed during ash discharge by ash
Pressure, so that backplate is fallen off, cause fire grate block can not rotate or fall to ash lock blocked at valve upper valve close it is not in place, ash lock can not
Pressure release causes gasification furnace to be forced to stop, and once falls, and needs all to remove fire grate and overhaul, the repair time is about
15 days or so, seriously affect production run.
Summary of the invention
The present invention overcomes the shortcomings of the prior art, provides Lurgi gasifier gear collet backplate.Solves tradition point
The problem of scattered backplate is easy to fall off.The present invention is achieved through the following technical solutions.
Lurgi gasifier gear collet backplate, the backplate are a doughnut-shaped steel plate, and the height of the doughnut-shaped steel plate is
40-50cm, multiple stress holes are evenly arranged on the doughnut-shaped steel plate, and the spacing in the adjacent stress hole is 30-40cm, institute
The upper end for the doughnut-shaped steel plate stated is provided with the securing plate of annular, and the angle of the securing plate inner wall and doughnut-shaped steel plate inner wall is 120-
150°。
Further, the stress hole is bellmouth.
Further, the aperture in the stress hole is 3.5-4cm.
Further, the middle part of doughnut-shaped steel plate is arranged in the stress hole.
Further, the internal diameter of the doughnut-shaped steel plate is 200-220cm.
Further, the securing plate and the connection type of doughnut-shaped steel plate are welding.
Further, the vertical height of the securing plate is 10-15cm.
Backplate of the present invention matches with the size of gear collet, and the maximum difference with existing backplate is that backplate of the present invention is
One overall structure, the stress hole of setting keep installation more firm, and eliminate thermal expansion stress influence, and securing plate further improves
The stability of backplate, the angle of formation can guarantee more to be bonded with fire grate gear and consolidate.
The present invention is generated compared with the existing technology to be had the beneficial effect that.
Present invention substantially reduces the workloads overhauled to Lurgi gasifier grate section, extend the use of fire grate gear
Service life, and avoid due to former backplate fall caused by parking accident and eliminate due to backplate fall block ash lock valve maintenance
Risk when processing, and manufacture craft is simple, it is convenient to overhaul.
Backplate of the invention extends the service life of fire grate gear apparatus, ensure that long-term operation, is production run
Provide advantageous guarantee.It from spare part expense and reduces on maintenance workload, single furnace is estimated to save 150,000 or so.And it is kept away after being transformed
Exempt from parking resulting from or systematic influence and security standpoint are considered, improves economic benefit indirectly.
Detailed description of the invention
Fig. 1 is existing Lurgi gasifier gear collet guard board structure schematic diagram.
Fig. 2 is Lurgi gasifier gear collet guard board structure schematic diagram of the present invention.
Fig. 3 is the sectional view of backplate of the present invention.
Wherein 1 is gear wheel, and 2 be backplate, and 3 be doughnut-shaped steel plate, and 4 be stress hole, and 5 be securing plate.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, in conjunction with reality
Example and attached drawing are applied, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to
It explains the present invention, is not intended to limit the present invention.Below with reference to the examples and drawings technical solution that the present invention will be described in detail, but
The scope of protection is not limited by this.
As Figure 2-3, Lurgi gasifier gear collet backplate, backplate are a doughnut-shaped steel plate 3, the height of doughnut-shaped steel plate 3
For 46.5cm, multiple stress holes 4 are evenly arranged on the doughnut-shaped steel plate 3, the spacing in adjacent stress hole 4 is 30cm, along ring
The upper end of shape steel plate 3 is welded with the securing plate 5 of annular, and the angle of 5 inner wall of securing plate and 3 inner wall of doughnut-shaped steel plate is 140 °.
Stress hole 4 is bellmouth, and the outer wall of doughnut-shaped steel plate 3 is arranged in epicone bottom, and the inner wall of doughnut-shaped steel plate 3 is arranged in lower cone bottom.It answers
The aperture in power hole 4 is 3.5cm.The middle part of doughnut-shaped steel plate 3 is arranged in stress hole 4.The internal diameter of doughnut-shaped steel plate 3 is 218cm.Securing plate
5 vertical height is 10cm.
During use, whole backplate can be welded according to gear wheel collet size, original dispersion
Each backplate is to be poured by 35C,rMo,104 II, and integrated backplate is using common anti abrasive Q345 steel plate as former at present
Material need to only be rolled up to welding, and made the more convenient grinding tool that is not necessarily to and cast.Integrated backplate meets shield to reach i.e. protection collet again
Plate installation requirement avoids backplate from falling off, so that parking accident be avoided to occur, makes production being capable of stable operation.
Described the above content is the further descriptions for combining specific preferred embodiment to be the present invention, no
It can assert that a specific embodiment of the invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs,
Under the premise of not departing from the present invention, several simple deduction or replace can also be made, all shall be regarded as belonging to the present invention by
The claims submitted determine scope of patent protection.
Claims (7)
1. Lurgi gasifier gear collet backplate, which is characterized in that the backplate is a doughnut-shaped steel plate (3), the annular
The height of steel plate (3) is 40-50cm, is evenly arranged with multiple stress holes (4), the phase side-by-side on the doughnut-shaped steel plate (3)
The spacing in power hole (4) is 30-40cm, and the upper end of the doughnut-shaped steel plate (3) is provided with the securing plate (5) of annular, the reinforcing
The angle of plate (5) inner wall and doughnut-shaped steel plate (3) inner wall is 120-150 °.
2. Lurgi gasifier gear collet backplate according to claim 1, which is characterized in that the stress hole (4) is
Bellmouth.
3. Lurgi gasifier gear collet backplate according to claim 1, which is characterized in that the stress hole (4)
Aperture is 3.5-4cm.
4. Lurgi gasifier gear collet backplate according to claim 1, which is characterized in that the stress hole (4) is set
Set the middle part in doughnut-shaped steel plate (3).
5. Lurgi gasifier gear collet backplate according to claim 1, which is characterized in that the doughnut-shaped steel plate (3)
Internal diameter be 200-220cm.
6. Lurgi gasifier gear collet backplate according to claim 1, which is characterized in that the securing plate (5) with
The connection type of doughnut-shaped steel plate (3) is welding.
7. Lurgi gasifier gear collet backplate according to claim 1, which is characterized in that the securing plate (5)
Vertical height is 10-15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811269740.XA CN109321278A (en) | 2018-10-29 | 2018-10-29 | Lurgi gasifier gear collet backplate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811269740.XA CN109321278A (en) | 2018-10-29 | 2018-10-29 | Lurgi gasifier gear collet backplate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109321278A true CN109321278A (en) | 2019-02-12 |
Family
ID=65260484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811269740.XA Pending CN109321278A (en) | 2018-10-29 | 2018-10-29 | Lurgi gasifier gear collet backplate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109321278A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215076A (en) * | 2012-01-24 | 2013-07-24 | 沙索技术有限公司 | Gasifier |
| CN209210733U (en) * | 2018-10-29 | 2019-08-06 | 山西潞安煤基合成油有限公司 | A kind of Lurgi gasifier gear collet backplate |
-
2018
- 2018-10-29 CN CN201811269740.XA patent/CN109321278A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215076A (en) * | 2012-01-24 | 2013-07-24 | 沙索技术有限公司 | Gasifier |
| CN209210733U (en) * | 2018-10-29 | 2019-08-06 | 山西潞安煤基合成油有限公司 | A kind of Lurgi gasifier gear collet backplate |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |