CN102350154A - Bypass of deduster - Google Patents
Bypass of deduster Download PDFInfo
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- CN102350154A CN102350154A CN2011102053404A CN201110205340A CN102350154A CN 102350154 A CN102350154 A CN 102350154A CN 2011102053404 A CN2011102053404 A CN 2011102053404A CN 201110205340 A CN201110205340 A CN 201110205340A CN 102350154 A CN102350154 A CN 102350154A
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- deduster
- bypass
- upper box
- opening
- passing
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Abstract
The invention discloses a bypass of a deduster. The bypass which is arranged on the outside of the deduster is arranged on the air outlet of the deduster is characterized in that: the bypass comprises, mutually connected, an upper casing and a lower casing, the upper casing is provided with bypass valves, a separation plate is arranged between the upper casing and the lower casing, the separation plate is provided with bypass ports, and valve covers of the bypass valves are used for opening or closing the bypass ports through cooperating with the bypass ports; one side of the lower casing is provided with an opening which is communicated with the air outlet of the deduster through an air out flue; and the lower casing has a bucket structure, and the lower end of the lower casing is communicated with ash buckets of the deduster. Compared with present inner bypasses, the bypass with above structure can guarantee that there is strictly clean in the upper casing whether a smoke goes through the bypass, so making precision requirements of an offline system of the upper casing can be reduced; and the bypass of the invention has the characteristics of simple structure, convenient installation, convenient maintenance, low cost and the like.
Description
Technical field
The present invention relates to smoke dust-removing equipment, be specifically related to a kind of bypass of deduster.
Background technology
The pulse bag type dust collector that uses in the modern industry; Form by several parts such as upper box, middle casing, ash bucket, ash discharging system, injection system and control systems; And air inlet divides cell structure under adopting; Ash-laden gas gets into ash bucket by lower box in the air inlet warp; Wherein the grit that part is bigger is because effects such as inertial collision, natural subsidence directly fall into ash bucket; Other grit rises with air-flow and gets into each bag chamber; After filter bag filters; Grit is delayed at the filter bag outside; Purified gas enters atmosphere through off-line valve, air outlet again by the inner upper box that gets into of filter bag.Be deposited in the ash bucket dust regularly or draw off by conveying worm and rigidity impeller discharger continuously.Along with constantly carrying out of filter process; The appended long-pending dust in the filter bag outside constantly increases; Cause the resistance of sack cleaner itself also to raise gradually; When resistance reaches preset value; The deashing controller sends signal; At first make the off-line valve of a bag chamber close; Cut off the overanxious air-flow of this chamber; Open electromagnetic impulse valve then; The compressed air order is through gas bag; Pulse valve; Nozzle on the winding-up pipe sprays to filter bag, and compressed air expands at a high speed in case, makes filter bag produce the dither distortion; Add the effect of inverted draft; The dirt cake distortion that the filter bag outside is adhered to comes off, and after the sedimentation time that has taken into full account dust, the off-line valve is opened; This bag chamber filter bag returns to the filtration state, and next bag chamber then gets into the deashing state.
Because filter bag is the critical elements in the pulse bag type dust collector, in the flue-gas temperature scope that is fit to the filter bag material capability, sack cleaner has very high efficiency of dust collection during the filter bag operate as normal.Flue-gas temperature raises suddenly to the use generation harmful effect of filter bag in the dust pelletizing system in order to avoid; Perhaps dust pelletizing system equipment is debugged for satisfying under the situation of breaks in production not; Usually need in the deduster system that handles high-temperature flue gas, by-pass collar be set, the by-pass collar of deduster has obtained using widely in many dust pelletizing systems at present.But existing many by-pass collars all are arranged on the inside of deduster; The problem of its existence is; Making required precision to the off-line system in the upper box is higher; The difficulty of making is big; Cost is high, is not easy to repair and maintenance, in case the poorly sealed reality of upper box off-line valve plate; Just have dust and get in the upper box bin and pollute, and be difficult for being cleared.
Summary of the invention
The objective of the invention is to overcome the defective that exists in the prior art, design whether by-passing state of a kind of no matter flue gas, all is bypass of the deduster of strict cleaning in the upper box.
For realizing above-mentioned purpose; Technical scheme of the present invention is the bypass of a kind of deduster of design; Said bypass is arranged on the outside of deduster; And be installed in the air outlet place of said deduster, it is characterized in that, said bypass comprises interconnective upper box and lower box; On said upper box, be provided with by-passing valve; Between said upper box and lower box, be provided with dividing plate, on said dividing plate, be provided with by-pass port, the valve gap of said by-passing valve cooperates with said by-pass port and is used for opening or closing by-pass port; Side at said lower box is provided with opening, and described opening is connected with the air outlet of said deduster through the air-out flue; Described lower box is bucket-shaped structure, and its lower end is communicated with the ash bucket of said deduster.
For the ease of the installation of bypass equipment, reduce the volume of bypass equipment, be that said air outlet is arranged on the top of the side of said deduster as optimized technical scheme.
In order to make emitting that flue gas can be quick and smooth; Further optimized technical scheme is; On said upper box, be provided with several by-passing valves, on said dividing plate, be provided with several by-pass ports, said several by-passing valves are corresponding one by one with the position of said several by-pass ports.
For simplified structure, be convenient to the installation and maintenance of by-passing valve, further optimized technical scheme is, and said by-passing valve is arranged on the upper end of said upper box, and said by-passing valve cooperates with said by-pass port through the valve gap of valve rod lower end.
Dust in flue gas gets into upper box; Further optimized technical scheme is; Said by-pass port is the passage that on said dividing plate, is provided with; On said passage, be provided with breather pipe; One end of said breather pipe is connected on the said dividing plate, and the other end of said breather pipe matches with said valve gap.
For the flue gas that remains in after by-passing valve cuts out in the upper box can be discharged from, further optimized technical scheme is, described air-out flue is by passing in the said upper box, be provided with on the walling of flue of said flue and said upper box between be provided with air vent.
Dust in the flue gas gets into the upper box of deduster, and further optimized technical scheme is, said opening is arranged on the middle part of said deduster side, and the lower end of said opening is equal to or higher than the lower end of the raising middle flask inner swash plate of said deduster.
Successfully fall into for the ease of dust in the ash bucket of deduster, further optimized technical scheme is that the angle of its inclined plane of described bucket-shaped structure and horizontal plane is more than or equal to 50 °.
In order to control the flow velocity of flue gas, optimized technical scheme also has, and the opening of said by-pass port is the fixed dimension structure, or the adjustable structure of openings of sizes.
In order to simplify the structure of bypass upper box, optimized technical scheme also has, and described upper box is the tubular structure of circle or rectangle.
Advantage of the present invention and beneficial effect are: this by-pass structure is compared with existing internal bypass, and it can guarantee no matter be that flue gas is denied the by-passing state, all is strict cleanings in the upper box, so just can reduce the making required precision to the upper box off-line system.And under the internal bypass structure, if the poorly sealed reality of upper box off-line valve plate has dust and gets into the phenomenon generation in the upper box bin.Characteristics such as this bypass has simple in structurely in addition, just installs, is convenient to maintenance, and cost is low.
Description of drawings
Fig. 1 is bypass master's TV structure sketch map of deduster of the present invention;
Fig. 2 is the bypass plan structure sketch map of deduster of the present invention;
Fig. 3 is the bypass-side TV structure sketch map of deduster of the present invention;
Fig. 4 is the by-passing part partial enlarged drawing of Fig. 1;
Fig. 5 is the by-passing part partial enlarged drawing of Fig. 2.
Among the figure: 1, deduster; 2, air outlet; 3, upper box; 4, lower box; 5, by-passing valve; 6, dividing plate; 7, by-pass port; 8, valve gap; 9, opening; 10, air-out flue; 11, ash bucket; 12, breather pipe; 13, air vent; 14, raising middle flask inner swash plate; 15, inclined plane; 16, the air inlet of deduster.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
Shown in accompanying drawing 1～5; The present invention is a kind of bypass of deduster; This bypass is arranged on the outside of deduster 1; And be installed in air outlet 2 places of said deduster; Said bypass comprises interconnective upper box 3 and lower box 4, on said upper box 3, is provided with by-passing valve 5, between said upper box 3 and lower box 4, is provided with dividing plate 6; On said dividing plate 6, be provided with by-pass port 7, the valve gap 8 of said by-passing valve 5 cooperates with said by-pass port 7 and is used for opening or closing by-pass port; Side at said lower box 4 is provided with opening 9, and described opening 9 is connected with the air outlet 2 of said deduster through air-out flue 10; Described lower box 4 is bucket-shaped structure, and its lower end is communicated with the ash bucket 11 of said deduster 1.
On the basis of the foregoing description, for the ease of the installation of bypass equipment, reduce the volume of bypass equipment, said air outlet 2 is arranged on the top of the side of said deduster 1.
On the basis of the foregoing description; In order to make emitting that flue gas can be quick and smooth; On said upper box 3, be provided with several by-passing valves 5, on said dividing plate 6, be provided with several by-pass ports 7, said several by-passing valves 5 are corresponding one by one with the position of said several by-pass ports 7.
On the basis of the foregoing description, for simplified structure, be convenient to the installation and maintenance of by-passing valve, said by-passing valve 5 is arranged on the upper end of said upper box 3, and said by-passing valve 5 cooperates with said by-pass port 7 through the valve gap 8 of valve rod lower end.
On the basis of the foregoing description; Dust in flue gas gets into upper box; Said by-pass port 7 is the passages that on said dividing plate 6, are provided with; On said passage, be provided with breather pipe 12; One end of said breather pipe 13 is connected on the said dividing plate 6, and the other end of said breather pipe matches with said valve gap 8.
On the basis of the foregoing description; For the flue gas that remains in after by-passing valve cuts out in the upper box can be discharged from; Described air-out flue 10 is by passing in the said upper box 3, be provided with on the walling of flue of said flue 10 and said upper box 3 between be provided with air vent 13.
On the basis of the foregoing description, the dust in the flue gas gets into the upper box of deduster, and said opening 9 is arranged on the middle part of said deduster 1 side, and the lower end of said opening is equal to or higher than the lower end of the raising middle flask inner swash plate 14 of said deduster 1.
On the basis of the foregoing description, successfully fall into for the ease of dust in the ash bucket of deduster, the angle of its inclined plane 15 of described bucket-shaped structure and horizontal plane is more than or equal to 50 °.
On the basis of the foregoing description, in order to control the flow velocity of flue gas, the opening of said by-pass port 7 is the fixed dimension structure, or the adjustable structure of openings of sizes.
On the basis of the foregoing description, in order to simplify the structure of bypass upper box 3, described upper box 3 is the tubular structure of circle or rectangle.
The operation principle of this bypass is: ash-laden gas gets into ash bucket 11 by lower box in air inlet 16 warps; Wherein the grit that part is bigger is because effects such as inertial collision, natural subsidence directly fall into ash bucket 11; Other grit rises with air-flow and gets into each bag chamber; After filter bag filters; Grit is delayed at the filter bag outside; Purified gas enters atmosphere through off-line valve, air outlet again by the inner upper box that gets into of filter bag.Flue-gas temperature raises suddenly to the use generation harmful effect of filter bag in dust pelletizing system; Perhaps for satisfying under the situation of breaks in production not when dust pelletizing system equipment debugged; Under the fan operation state; Open bypass system by-passing valve 5 earlier, again Close All deduster air-intake device volume damper and upper box off-line valve.At this moment, flue gas begins to get into the lower box 4 of bypass, enters atmosphere through by-pass port 7, by-passing valve 5 then.Dust in the flue gas is stopped by baffle plate, dividing plate etc. in through the lower box process of bypass and drops in the ash bucket.When ash-laden gas is discharged through the air-out flue 10 of deduster; By-passing valve 5 cuts out by-pass port 7; Owing between the upper box of air-out flue 10 and bypass, be provided with passage 13; Flue gas is in swiftly flowing process; Can make the upper box of bypass form negative pressure (siphonage), therefore remaining flue gas and the dust in the upper box can be excluded.Because bypass equipment is the smoke evacuation system of operation in the temporary transient short time; Just may produce harmful effect to the use of filter bag in the unexpected rising of flue-gas temperature; Perhaps be to use, therefore can not work the mischief atmospheric environment for satisfying under the situation of breaks in production not dust pelletizing system equipment debugged.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and retouching, these improvement and retouching also should be considered as protection scope of the present invention.
Claims (10)
1. the bypass of a deduster; Said bypass is arranged on the outside of deduster; And be installed in the air outlet place of said deduster; It is characterized in that; Said bypass comprises interconnective upper box and lower box, on said upper box, is provided with by-passing valve, between said upper box and lower box, is provided with dividing plate; On said dividing plate, be provided with by-pass port, the valve gap of said by-passing valve cooperates with said by-pass port and is used for opening or closing by-pass port; Side at said lower box is provided with opening, and described opening is connected with the air outlet of said deduster through the air-out flue; Described lower box is bucket-shaped structure, and its lower end is communicated with the ash bucket of said deduster.
2. the bypass of deduster as claimed in claim 1 is characterized in that, said air outlet is arranged on the top of the side of said deduster.
3. the bypass of deduster as claimed in claim 2 is characterized in that, on said upper box, is provided with several by-passing valves, on said dividing plate, is provided with several by-pass ports, and said several by-passing valves are corresponding one by one with the position of said several by-pass ports.
4. the bypass of deduster as claimed in claim 3 is characterized in that, said by-passing valve is arranged on the upper end of said upper box, and said by-passing valve cooperates with said by-pass port through the valve gap of valve rod lower end.
5. the bypass of deduster as claimed in claim 4; It is characterized in that said by-pass port is the passage that on said dividing plate, is provided with, and on said passage, is provided with breather pipe; One end of said breather pipe is connected on the said dividing plate, and the other end of said breather pipe matches with said valve gap.
6. the bypass of deduster as claimed in claim 5 is characterized in that, described air-out flue is by passing in the said upper box, be provided with on the walling of flue of said flue and said upper box between be provided with air vent.
7. the bypass of deduster as claimed in claim 6 is characterized in that, said opening is arranged on the middle part of said deduster side, and the lower end of said opening is equal to or higher than the lower end of the raising middle flask inner swash plate of said deduster.
8. like the bypass of any described deduster in the claim 1 to 7, it is characterized in that the angle of its inclined plane of described bucket-shaped structure and horizontal plane is more than or equal to 50 °.
9. the bypass of deduster as claimed in claim 1 is characterized in that, the opening of said by-pass port is the fixed dimension structure, or the adjustable structure of openings of sizes.
10. the bypass of deduster as claimed in claim 1 is characterized in that, described upper box is the tubular structure of circle or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102053404A CN102350154A (en) | 2011-07-22 | 2011-07-22 | Bypass of deduster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102053404A CN102350154A (en) | 2011-07-22 | 2011-07-22 | Bypass of deduster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102350154A true CN102350154A (en) | 2012-02-15 |
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ID=45573863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102053404A Pending CN102350154A (en) | 2011-07-22 | 2011-07-22 | Bypass of deduster |
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| Country | Link |
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| CN (1) | CN102350154A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672773A (en) * | 2005-02-21 | 2005-09-28 | 张彤 | Bag dust collector for coal burning boiler and furnace |
| US6960241B1 (en) * | 2003-07-24 | 2005-11-01 | Slenz Douglas S | Paper trap |
| CN201263945Y (en) * | 2008-11-10 | 2009-07-01 | 江苏亿金环保设备工程有限公司 | Bypass automatic protection structure in precipitator |
| CN201776038U (en) * | 2010-08-09 | 2011-03-30 | 江苏绿盛环境工程有限公司 | Novel bag type dust collector for industrial high-temperature flue gas dust removal |
| CN102120117A (en) * | 2010-03-15 | 2011-07-13 | 湘潭平安电气有限公司 | Gas seal type lifting bypass valve |
| CN202191806U (en) * | 2011-07-22 | 2012-04-18 | 江苏亿金环保科技股份有限公司 | Bypass of dust remover |
-
2011
- 2011-07-22 CN CN2011102053404A patent/CN102350154A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6960241B1 (en) * | 2003-07-24 | 2005-11-01 | Slenz Douglas S | Paper trap |
| CN1672773A (en) * | 2005-02-21 | 2005-09-28 | 张彤 | Bag dust collector for coal burning boiler and furnace |
| CN201263945Y (en) * | 2008-11-10 | 2009-07-01 | 江苏亿金环保设备工程有限公司 | Bypass automatic protection structure in precipitator |
| CN102120117A (en) * | 2010-03-15 | 2011-07-13 | 湘潭平安电气有限公司 | Gas seal type lifting bypass valve |
| CN201776038U (en) * | 2010-08-09 | 2011-03-30 | 江苏绿盛环境工程有限公司 | Novel bag type dust collector for industrial high-temperature flue gas dust removal |
| CN202191806U (en) * | 2011-07-22 | 2012-04-18 | 江苏亿金环保科技股份有限公司 | Bypass of dust remover |
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Application publication date: 20120215 |