CN202700615U - Sealing dedusting box at position of slag discharge hole of coal mill - Google Patents
Sealing dedusting box at position of slag discharge hole of coal mill Download PDFInfo
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- CN202700615U CN202700615U CN 201220328532 CN201220328532U CN202700615U CN 202700615 U CN202700615 U CN 202700615U CN 201220328532 CN201220328532 CN 201220328532 CN 201220328532 U CN201220328532 U CN 201220328532U CN 202700615 U CN202700615 U CN 202700615U
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- sealing
- seal box
- cleaning case
- dust
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Abstract
The utility model discloses a sealing dedusting box at a position of a slag discharge hole of a coal mill. The sealing dedusting box comprises a sealing box, the top of the sealing box is provided with a slag receiving opening which is connected with the slag discharge hole of the coal mill through a flange, a side face of the sealing box is provided with a sealing door which can be opened and closed, and a slag receiving box with a top end opening is arranged in the sealing box. The sealing dedusting box uses a closed type dedusting box to receive slags, enables smoke dust generated when the slags are dumped to be sealed in the sealing dedusting box, avoids circumfusion of the smoke dust, and at the same time uses a spray device and a dust exhaust apparatus to carry out treatment of the smoke dust, and accelerates velocity of removal of the smoke dust. The sealing dedusting box enables all slags to be removed and carried away by a fork lift truck at a time through the slag receiving box arranged in the sealing box, and reduces generation of the smoke dust due to the fact that transit shipment is not need during the removal of the slags.
Description
Technical field
The utility model relates to mechanical field, is specifically related to a kind of sealing dust cleaning case with eliminating or reduce steam power plant's coal pulverizer slag-drip opening flue dust.
Background technology
What the boiler of existing steam power plant used all is coal dust, and coal dust is more thin more easily to burn and burn complete, and heat loss is also little, if but too tiny then can fly upward, cause unnecessary loss, the granularity of most coal dusts is controlled at 20～50mm in reality.Disobey and transport the raw coal size of coming, so after raw coal will being pulverized by coal pulverizer first, just advance the stove burning.
Coal pulverizer of the prior art mainly is divided into following three kinds by speed:
1, low-speed coal mill: be mainly the drum-type low speed coal mill, generally be called for short Ball Mill or ball mill, it is that the cylindrical or two ends of a rotation are the cylinder of taper, and steel ball is housed in the cylinder, and the rotating speed of cylinder is 15～25 rev/mins.Steel ball during work in the cylinder constantly clashes into and pushes coal cinder, coal cinder is ground into coal dust, then sent with the coal oven dry and with coal dust by the hot blast that passes in the cylinder, after separator separated, the coal dust of certain particle size was admitted to Pulverized Coal Bin or directly sends into coal burner.The Ball Mill heaviness is huge, power consumption is high, noise is large; But to the wide accommodation of coal, reliable, be particularly suitable for grinding the hard anthracite.
2, medium-speed pulverizer: rotating speed is 50～300 rev/mins, and kind is more, common are square position mill, bowl shaped mill, E type mill and roller mill, and their common feature is that the parts of milling are made of the milling body of two groups of relative motions.Coal cinder is squeezed, mills and pulverized between these two groups of milling body surfaces, and simultaneously, the hot blast that passes into coal pulverizer is dried coal, and coal dust is delivered in the vane chamber on the top, district of milling, after separating, the coal dust of certain particle size is taken out of outside the mill with air-flow, and coarse grained coal dust returns the district that mills and refaces.In this process, be thrown to simultaneously the foreign material such as a small amount of stone that also having of vane chamber carry secretly in the raw coal and ironware, they fall into residue receiving box most, are regularly discharged.Medium-speed pulverizer has facility compact, it is little to take up an area, power consumption is economized the remarkable advantages such as (be about low speed coal mill 50～75%), noise are little, the lighter sensitivity of operation control ratio; But structure and manufacturing are complicated, and maintenance cost is larger, and is not suitable for grinding harder coal.Bowl formula medium-speed pulverizer is used morely in considerable coal-fired boiler.
3, high speed coal mill: rotating speed is 500～1500 rev/mins, mainly formed by high speed rotor and mill shell, common are fan mill and hammer swing sledge mill etc., the high speed impact that coal cinder is subject to high speed rotor in fan mill and the collision of mill shell, and mutual bump and being ground between the coal cinder.This coal pulverizer and coal dust classifier form a whole, and be simple in structure, compactness, and initial cost is economized, and is specially adapted to grind the high-moisture brown coal and volatile matter is high, the bituminous coal that easily grinds.Fan mill is because wearing and tearing are large, and continuous operating time is all short than other coal pulverizers, is unsuitable for grinding the hard coal.
The most medium-speed pulverizers that use of existing steam power plant, for medium-speed pulverizer, its deslagging mode all is to adopt the box dreg removing system of buffering basically, manually clear after being discharged on the spot the deslagging dolly, around barotropic gas during deslagging in the residue receiving box carries that a large amount of dust are loose and arrives, severe contamination surrounding environment.
The utility model content
Flue dust spreads everywhere when solving in the prior art coal pulverizer deslagging, causes the problem of contaminated environment, the utility model provide a kind of closed connect the slag device and simultaneously the flue dust when toppling over process, reach the purpose of cleaning ambient health.Concrete scheme is as follows: the sealing dust cleaning case at a kind of coal pulverizer slag-drip opening place, it is characterized in that, comprise a seal box, the top of described seal box is provided with and connects cinder notch, the described cinder notch that connects is connected with the slag-drip opening of coal pulverizer by flange, but described seal box side is provided with the closing door of folding, is provided with the uncovered residue receiving box in top in the seal box.
In order to reduce flue dust: be provided with in the described seal box for dust exhaust apparatus and the spray equipment of eliminating flue dust.
Be faster and better elimination flue dust: described spray equipment comprises 4～8 shower nozzles that are separately positioned on the seal box inner top, and each shower nozzle connects by the water-supply-pipe that is arranged in the seal box, and water-supply-pipe is connected with the water inlet pipe of seal box outside.
For accelerating the processing speed of flue dust: described dust exhaust apparatus comprises the inlet scoop that is arranged on seal box inside, and the inlet scoop is connected with outside blower fan by exhaust duct.
For avoiding flue dust to be dispersed into the external world: place, described inlet scoop is provided with the screen pack that filters dust.
Be convenient carrying waste residue: described residue receiving box bottom is provided with the fork fortune groove for carrying fork truck.
Topple over situation for understanding at any time waste residue: described seal box top is provided with the transparent windows of observing the seal box internal state.
The utility model utilizes closed dust cleaning case to receive waste residue, the flue dust that produces when waste residue is toppled over all is enclosed in the dust cleaning case, avoided scattering of flue dust, utilize simultaneously spray equipment and dust exhaust apparatus that flue dust is processed, accelerate to eliminate the speed of flue dust, the filter screen that arranges at the place, inlet scoop simultaneously can reduce flue dust and be diffused into the outside, and the waste residue behind the spray is loaded in bulk in the later stage and sent simultaneously, also dust raising phenomenon can not occur again.By being arranged on the residue receiving box of dust cleaning case inside, can utilize that fork truck is disposable clears away all waste residues, the centre does not need to pass on again, has reduced the generation of flue dust.Utilization is arranged on the accumulation situation that the inspection box at seal box top can conveniently be watched inner waste residue.
Description of drawings
Fig. 1 closed dust-collecting case of the present utility model internal structure schematic diagram.
Fig. 2 plan structure schematic diagram of the present utility model.
Attached number in the figure explanation: 1-seal box, 101-connect cinder notch, 102-flange, 103-inlet scoop, 104 screen packs, 105-shower nozzle, 106-closing door, 2-residue receiving box, 201-fork fortune groove, 3-transparent windows, 4-water inlet pipe, 401-control valve, 5-blower fan, 501-exhaust duct.
The specific embodiment
Such as Fig. 1, shown in 2, sealing dust cleaning case of the present utility model, the seal box 1 that comprises a sealing, corresponding with a coal pulverizer slag-drip opening cinder notch 101 that connects is set at the top of seal box 1, connecing cinder notch 101 is connected with slag-drip opening by flange 102, but seal box 1 side arranges the closing door 106 of a folding, the seal box 1 interior residue receiving box 2 that a top end opening is set, residue receiving box 2 is can put into seal box as standard, the top of residue receiving box 2 can reserve installation and the working space of dust arrester, dust arrester wherein comprises for the dust exhaust apparatus of absorption flue dust and the spray equipment of spraying water to waste residue, spray equipment comprises 4～8 shower nozzles 105 that are separately positioned on seal box 1 inner top, each shower nozzle 105 links together by the water-supply-pipe that is arranged in the seal box 1, shower nozzle 105 is to residue receiving box 2 intermediate, inclined, water-supply-pipe is connected with the water inlet pipe 4 of seal box 1 outside, is the spray of convenient control shower nozzle 105, at water inlet pipe 4 control valve 401 is installed.Dust exhaust apparatus comprises the inlet scoop 103 that is arranged on sealing dust cleaning case inside, and inlet scoop 103 is connected with outside blower fan 5 by exhaust duct 501, is discharged by inlet scoop 103 for preventing flue dust, and 103 places arrange the screen pack 104 that filters dust in the inlet scoop.Produce flue dust when again sending, the fork fortune groove 201 of getting for the fork truck fork is set in residue receiving box 2 bottoms.In order conveniently to check the collection degree of residue receiving box 2 interior waste residues, the transparent windows 3 of observing residue receiving box 2 internal states is set on the top of seal box 1.
The utility model is when work, at first close the closing door of sealing dust cleaning case, open again the slag-drip opening of coal pulverizer, in the waste residue toppling process, dust exhaust apparatus and spray equipment be can open, the flue dust that toppling process produces, the situation of toppling over that can check waste residue by transparent windows are used for eliminating, if residue receiving box is filled, then can suspend the discharging of waste residue.In the situation that residue receiving box is filled and flue dust is eliminated by cleaner, open closing door and utilize fork truck to pitch into the fork-join groove residue receiving box is transported, to slag stone topple over complete after, put into again the sealing dust cleaning case and carry out next time the slag work that connects.
Residue receiving box 2 also can adopt the mode that roller is installed in the bottom to transport.
The above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, anyly be familiar with the technical staff of this patent within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned prompting is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of the utility model scheme.
Claims (7)
1. the sealing dust cleaning case at a coal pulverizer slag-drip opening place, it is characterized in that, comprise a seal box (1), the top of described seal box (1) is provided with and connects cinder notch (101), the described cinder notch (101) that connects is connected with the slag-drip opening of coal pulverizer by flange (102), described seal box (1) but the side is provided with the closing door (106) of folding, be provided with the uncovered residue receiving box in top (2) in the seal box (1).
2. sealing dust cleaning case as claimed in claim 1 is characterized in that, is provided with in the described seal box (1) for dust exhaust apparatus and the spray equipment of eliminating flue dust.
3. sealing dust cleaning case as claimed in claim 2, it is characterized in that, described spray equipment comprises 4～8 shower nozzles (105) that are separately positioned on seal box (1) inner top, each shower nozzle (105) connects by the water-supply-pipe that is arranged in the seal box (1), and water-supply-pipe is connected with the water inlet pipe (4) of seal box (1) outside.
4. sealing dust cleaning case as claimed in claim 2 is characterized in that, described dust exhaust apparatus comprises the inlet scoop (103) that is arranged on seal box (1) inside, and inlet scoop (103) are connected with outside blower fan (5) by exhaust duct (501).
5. sealing dust cleaning case as claimed in claim 4 is characterized in that, described inlet scoop (103) locate to be provided with the screen pack (104) that filters dust.
6. sealing dust cleaning case as claimed in claim 1 is characterized in that, described residue receiving box (2) bottom is provided with the fork fortune groove (201) for carrying fork truck.
7. sealing dust cleaning case as claimed in claim 1 is characterized in that, described seal box (1) top is provided with the transparent windows (3) of observing the seal box internal state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220328532 CN202700615U (en) | 2012-07-09 | 2012-07-09 | Sealing dedusting box at position of slag discharge hole of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220328532 CN202700615U (en) | 2012-07-09 | 2012-07-09 | Sealing dedusting box at position of slag discharge hole of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202700615U true CN202700615U (en) | 2013-01-30 |
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ID=47580955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220328532 Expired - Fee Related CN202700615U (en) | 2012-07-09 | 2012-07-09 | Sealing dedusting box at position of slag discharge hole of coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202700615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109237164A (en) * | 2018-11-21 | 2019-01-18 | 泰州华然不锈钢制品有限公司 | A kind of Ifold flange with dedusting function |
| CN109550766A (en) * | 2017-09-25 | 2019-04-02 | 高淳县龙宁精密铸造有限公司 | Dedusting mechanism |
-
2012
- 2012-07-09 CN CN 201220328532 patent/CN202700615U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550766A (en) * | 2017-09-25 | 2019-04-02 | 高淳县龙宁精密铸造有限公司 | Dedusting mechanism |
| CN109237164A (en) * | 2018-11-21 | 2019-01-18 | 泰州华然不锈钢制品有限公司 | A kind of Ifold flange with dedusting function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20190709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |