CN105298341B - Protective cover for large access door - Google Patents
Protective cover for large access door Download PDFInfo
- Publication number
- CN105298341B CN105298341B CN201410294034.6A CN201410294034A CN105298341B CN 105298341 B CN105298341 B CN 105298341B CN 201410294034 A CN201410294034 A CN 201410294034A CN 105298341 B CN105298341 B CN 105298341B
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- China
- Prior art keywords
- protective cover
- maintenance door
- access door
- parts
- scale maintenance
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- 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.)
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a protective cover for a large access door. The protective cover is formed by assembling a left part and a right part connected via bolts and nuts. The outline of an overall frame fits that the peripheral outline of a flange of the large access door. The cross section of the protective cover is in a U-shaped channel form, having a channel opening facing a large access hole and capable of fully enclosing the periphery of the flange of the large access door; the bottom of the protective cover is open, used for discharging leaked material. The protective cover has the advantages that the bolt-nut connection ensures ease of demounting, each half of the protective cover is provided with a lug and a handle giving convenience for lifting and mounting equipment; the half-box structure of the protective cover can well cover the gap of the flange of the access door, and a fastening terrace at the bottom of the access door is effective in preventing liquid from spraying up and lifting up the protective cover; the open bottom of the protective cover allows the leaked material to be intensively discharged down.
Description
Technical field
The present invention relates to a kind of protective cover of large-scale maintenance door, more particularly, to a kind of alumina industry is with large-scale maintenance door
Protective cover.
Background technology
In aluminium oxide hydrometallurgy production process, the material after dissolution operation needs first to carry out pre-desiliconizing and seed
Some operations such as decompose, and pre-desilication tank and decomposer are more important equipment during this.Because grooved is larger, up to φ
The side wall of 14 × 37m, therefore cell body bottom will bear larger head of liquid.And the maintenance of large-sized groove body for convenience, greatly
It is provided with large-scale maintenance door, after multiple unlatching, the sealing of maintenance door can be subject to one on the bottom side wall of type groove body
Fixed impact, bottom cell body head of liquid larger nearby in addition, the material in cell body is easy to the flange gap from maintenance door
Leakage, the material containing high concentration alkali splashing and going out easily damages to operator, and also can corrode neighbouring equipment
Outer surface and pavement facilities.
Content of the invention
The leakage problem of the large-scale maintenance door being equipped with for higher cell body, the invention discloses a kind of large-scale maintenance door
Protective cover is it is therefore an objective to stop the material that sputters from the flange gap of large-scale maintenance door, and limits it and flow along specific direction
Go out, maintained equipment and production safety.
The present invention is achieved through the following technical solutions：
A kind of protective cover of large-scale maintenance door, protective cover, in the form of the splicing of left and right two parts, is connected using bolt and nut
Connect；The flange periphery profile of the general frame profile large-scale maintenance door of laminating, and protective cover cross section is U-type groove type, faced by notch
Large-scale manhole, can the large-scale maintenance door of envelope completely flange periphery；
The bottom of protective cover is open architecture, for discharging material leakage.
Described bolt and nut connects point upper and lower two parts, the both sides in front and back being connected in protective cover of upper part, bottom
The connection dividing is connected to the bottom of protective cover by two flat steel bars.
Described protective cover is welded using band steel.
The protective cover in described U-type groove section and the flange periphery of large-scale maintenance door leave certain gap.
Described protective cover each side arranges a vertical hanger, passes through protective cover by the plumb line of hanger left and right
The center of gravity of half part,
The bottom of described left and right two parts protective cover is provided with chuck, prevents protective cover from vertically starting upwards de-
Fall.
It is provided with seal box above described protective cover, seal box is welded with half steel bar for sealing.
It is each provided with a handle on described left and right two parts protective cover.
It is an advantage of the invention that：Connected it is easy to dismounting using bolt and nut, every demifacet of protective cover be both provided with hanger and
Handle, facilitates equipment lifting and installs.Half box structure of protective cover can be very good to coat the flange gap of maintenance door, maintenance
The chuck of the bottom rail of door can effectively prevent from starting protective cover because liquid sprays upwards.The opening of protective cover bottom can allow and let out
The material exposing is concentrated and is discharged downwards.
Brief description
The protective cover of the large-scale maintenance door of Fig. 1 and large-scale maintenance door assembling schematic diagram.
The left and right two parts fractionation structural representation of Fig. 2 large-scale maintenance door protective cover.
In figure：1st, left-half protective cover；2nd, right half part protective cover；3rd, bolt and nut；4th, vertical hanger；5th, handle；
6th, bottom connection flat steel bar；7th, upper left-hand seal box；8th, upper right seal box；9th, chuck；10th, seal flat steel bar；11、
Gap；12nd, large-scale maintenance door.
* the large-scale maintenance door 12 (profile drawn with double dot dash line) in accompanying drawing 1 is not in the scope of the present invention.
Specific embodiment
Combine accompanying drawing to embodiments of the present invention below to be described in detail, but protection scope of the present invention is not implemented
Example is limited.
As shown in Figures 1 and 2, a kind of protective cover of large-scale maintenance door of the present invention, including left-half protective cover 1,
Right half part protective cover 2, protective cover main body is welded using band steel, and the shape of cross section of main body frame is similar to U-type groove, notch
In the face of the flange periphery of large-scale maintenance door, monnolithic case is consistent with the flange outer margin contour of large-scale maintenance door, can be by flange periphery
Completely envelope wherein, but leave suitable gap, to ensure that material leakage can pass through, discharged by protective cover bottom；It is placed in anti-
Bolt and nut above and below guard shield general frame connects 3 and corresponding punching band steel plate, the connection of top divide preposition and after
Put two parts, in order to protective cover two parts to be connected firmly, the connecting through two bottom connection flat steel bars 6 and will protect of lower section
The bottom covering two half parts links together, and strengthens overall rigidity, prevents the protective cover leading to due to material leakage hypertonia
Deformation；The protective cover left and right sides is respectively arranged a vertical hanger 4, just passes through protective cover left side by the plumb line of hanger
Divide the center of gravity of (or right half part) it is ensured that when lifting by crane by vertical hanger, protective cover can keep balancing, will not be to both sides
Beat；One handle 5 is each provided with two parts protective cover of left and right, to facilitate the dismounting of protective cover；Protective cover top is provided with
Upper left-hand seal box 7 and upper right seal box 8, upper left-hand seal box 7 is welded with the sealing flat steel bar for sealing
10, to ensure that after two parts split of left and right, leakage will not be flowed out from gap；Protective cover bottom welding has chuck 9, when spraying upwards
Leakage pressure pulse very big when, can prevent protective cover from vertically being started by leakage and come off；Two parts about protective cover
Back bottom respectively leave a gap 11, in order to avoid large-scale maintenance door project base plate.
As shown in part A in Fig. 2, seal box arranges gap, to avoid the suspension gear of large-scale maintenance door.
Handling method and operation principle：Lifted by crane by the two-part hanger of protective cover 4, two parts merging in left and right clasps simultaneously
After large-scale maintenance door, set up the bolt for connecting, install；On the premise of guaranteeing to be vented inside cell body, pass through
Hanger 4 lifts by crane, after removing connecting bolt nut, pull handle 5, and protective cover two parts are taken apart, dismounting finishes.Protective cover is installed
After finishing, the material leaking out from large-scale maintenance door flange periphery is stopped by the U-type groove of protective cover, leakage is with downward along protective cover
Flowing, the place of opening of tailing edge bottom discharges.Protective cover all directions in addition to bottom all can stop material leakage, the card of lower section setting
Platform can prevent from material leakage pressure from crossing senior general's protective cover and vertically starting coming off.
Claims (8)
1. a kind of protective cover of large-scale maintenance door it is characterised in that：Described protective cover, in the form of the splicing of left and right two parts, is adopted
Connected with bolt and nut；The flange periphery profile of the general frame profile large-scale maintenance door of laminating, and protective cover cross section is U-type groove
Type, notch in the face of large-scale manhole, can the large-scale maintenance door of envelope completely flange periphery；The bottom of protective cover is open architecture,
For discharging material leakage.
2. protective cover according to claim 1 it is characterised in that：Described bolt and nut connects point upper and lower two parts, top
The both sides in front and back being connected in protective cover divided, the connection of lower part is connected to the bottom of protective cover by two flat steel bars.
3. protective cover according to claim 1 it is characterised in that：Described protective cover is welded using band steel.
4. protective cover according to claim 1 it is characterised in that：The protective cover in described U-type groove section and large-scale maintenance door
Flange periphery leave certain gap.
5. protective cover according to claim 1 it is characterised in that：Described protective cover each side arranges one and vertically hangs
Ear, passes through the center of gravity of the left and right half part of protective cover by the plumb line of hanger.
6. protective cover according to claim 1 it is characterised in that：The bottom of described left and right two parts protective cover is provided with
Chuck, prevents protective cover from vertically starting upwards and comes off.
7. protective cover according to claim 1 it is characterised in that：It is provided with seal box, seal box above described protective cover
On be welded with for sealing half steel bar.
8. protective cover according to claim 1 it is characterised in that：It is each provided with one on described left and right two parts protective cover
Individual handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410294034.6A CN105298341B (en) | 2014-06-26 | 2014-06-26 | Protective cover for large access door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410294034.6A CN105298341B (en) | 2014-06-26 | 2014-06-26 | Protective cover for large access door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105298341A CN105298341A (en) | 2016-02-03 |
| CN105298341B true CN105298341B (en) | 2017-02-15 |
Family
ID=55196070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410294034.6A Active CN105298341B (en) | 2014-06-26 | 2014-06-26 | Protective cover for large access door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105298341B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2639672B1 (en) * | 1988-11-25 | 1991-01-25 | Corbeau Charles | IMPROVEMENTS ON JOINERY OF BUILDING DOORS |
| US5085019A (en) * | 1989-11-16 | 1992-02-04 | Aiprokon Promotie & Ontwilleling B.V. | Door, window or panel section |
| US6598546B2 (en) * | 2000-02-11 | 2003-07-29 | Thomson Alexander | Access opening closure device |
| CN201906531U (en) * | 2010-08-25 | 2011-07-27 | 贵阳铝镁设计研究院 | Access door of ash bucket of dust collector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030172593A1 (en) * | 2002-03-15 | 2003-09-18 | Musser Kenneth D. | Replacement silo access closure assembly with recessed panel mounted access door and breaker bar |
-
2014
- 2014-06-26 CN CN201410294034.6A patent/CN105298341B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2639672B1 (en) * | 1988-11-25 | 1991-01-25 | Corbeau Charles | IMPROVEMENTS ON JOINERY OF BUILDING DOORS |
| US5085019A (en) * | 1989-11-16 | 1992-02-04 | Aiprokon Promotie & Ontwilleling B.V. | Door, window or panel section |
| US6598546B2 (en) * | 2000-02-11 | 2003-07-29 | Thomson Alexander | Access opening closure device |
| CN201906531U (en) * | 2010-08-25 | 2011-07-27 | 贵阳铝镁设计研究院 | Access door of ash bucket of dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105298341A (en) | 2016-02-03 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |