CN102553723A - Ash discharge control device of electric dust collector - Google Patents
Ash discharge control device of electric dust collector Download PDFInfo
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- CN102553723A CN102553723A CN2011104490256A CN201110449025A CN102553723A CN 102553723 A CN102553723 A CN 102553723A CN 2011104490256 A CN2011104490256 A CN 2011104490256A CN 201110449025 A CN201110449025 A CN 201110449025A CN 102553723 A CN102553723 A CN 102553723A
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- ash discharge
- control device
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Abstract
The invention discloses an ash discharge control device of an electric dust collector, and relates to an ash discharge control device for electric dust collection ash of furnace gas of a phosphorus preparation electric furnace. The ash discharge control device structurally comprises an ash discharge pipe, an upper ash level gauge, a lower ash level gauge and a spiral ash discharger, wherein the ash discharge pipe is a vertical through pipe which is connected with an ash outlet of an ash bucket of the electric dust collector; the upper ash level gauge is positioned on the upper part of the ash discharge pipe; the lower ash level gauge is positioned on the lower part of the ash discharge pipe; a feed port of the spiral ash discharger is connected with a lower port of the ash discharge pipe; the ash discharge control device is characterized by further structurally comprising an upper gate valve and a lower gate valve, wherein the upper gate valve is a gate valve of the ash discharge pipe, which is positioned on the upper part of the upper ash level gauge; and the lower gate valve is a gate valve of the ash discharge pipe, which is positioned on the upper part of the lower ash level gauge. According to the device, the sealing effect of the upper gate valve and the lower gate valve is fully utilized, and the safety performance of a dry ash discharge process and device for the electric dust collection ash of the furnace gas of the phosphorus preparation electric furnace and operation conditions of normal ash discharge can be guaranteed greatly.
Description
Technical field
A kind of ash discharge control device of electric cleaner relates to the ash discharge control device to system phosphorus electric furnace furnace gas electro-precipitating dust.
Technical background
Phosphorus production is all produced with electric furnace process both at home and abroad.Producing yellow Phosphorus by electric oven is about to rock phosphate in powder, silica, carbonaceous reducing agent compound and adds in the airtight three-phase furnace, and chemical reduction reaction is carried out in fusion under 1300～1500 ℃ of high temperature, generting element phosphorus (P
4), carbon monoxide gaseous state things such as (CO) and the dust of carrying under one's arms overflow, and claims the phosphorus furnace gas.Phosphorous furnace gas obtains finished product phosphorus through dedusting, condensation washing, the refining separation.Simultaneously, by-product ferrophosphorus and slag.
The phosphorus furnace gas that electric furnace legal system phosphorus produces is a mist, mainly is made up of phosphorus steam, CO, dust etc., is commonly called as the phosphorus furnace gas.Phosphorus steam in the phosphorus furnace gas is the gaseous state phase thing of this handicraft product yellow phosphorus, is the object of collecting.So must carry out dedusting to the phosphorus furnace gas.
At present, phosphorus furnace gas dust collection method can be divided into two kinds, and a kind of is wet dedusting, directly gets into condensing tower after promptly furnace gas is come out of the stove, and through condensing tower water spray washing, cooling, yellow phosphorus is condensed into drop, gets into most dust to receive to obtain thick phosphorus in the phosphorus groove.Thick phosphorus is used Steam Heating in refining kettle, rinsing gets product yellow phosphorus after making with extra care, clarify the removal dust.A kind of is electric precipitation, and promptly furnace gas directly gets into the electrostatic precipitator dedusting.Phosphorus gas after the udst separation gets into condensing tower and obtains thick phosphorus, again through filtering the refining product yellow phosphorus that obtains.At present in China, phosphorus furnace gas electric dust-removing process only in the Germany that is introduced, the former Soviet Union is large-scale in roasting phosphorus electric furnace, uses.And in the multi-electrode system phosphorus electric furnace that China extensively exists, all do not use electric dust-removing process with China's independent intellectual property right.
In the large-scale self-baking electrode system phosphorus electric furnace furnace gas electric dust-removing process, the collected dust ash method of electric cleaner is the wet type ash discharge.The machine of scratching in the ashes is installed in electric duster ash bucket, with the dedusting ash picker in the stock tank that has certain water level.During ash discharge, under the mixer effect in stock tank, the ash that will from electric duster ash bucket, discharge is processed pulpous state and is discharged then.The advantage one of this ash discharge method is to have made full use of the water sealing property in the stock tank, two avoided because of in the ash with phosphorus burning cause the abominable situation of ash discharge place surrounding air environment; Shortcoming is to be difficult to after the slurry processed of dry ash is discharged handle; Simultaneously; The dry ash of band high temperature forms a large amount of steam when slurrying, steam pours in down a chimney in entering electric cleaner and the ash releasing tube through ash releasing tube, causes causing easily electric cleaner inside to be condensed; Shortened the cleaning cycle of electric cleaner, condensing in the ash releasing tube also brings very big difficulty to the ash discharge operation.
Improvement through China associated production unit; Make the wet method ash discharge into the dry method ash discharge, be about to stock tank and remove, change into this spiral ash hoist is installed; And two level-sensing devices are installed in the grey column jecket of electric duster ash bucket to spiral ash hoist, following level-sensing device control gray columns Bock Altitude is as sealing function.When dedusting ash reaches the level-sensing device face, open spiral ash hoist ash discharge, the material level timing stopped ash discharge under grey column top arrived.The method has been avoided the shortcoming of wet method ash discharge, and the dry ash that is gone out is handled easily, and has kept the sealing requirements of ash discharge technology simultaneously.But because the characteristic of phosphorus furnace gas dust, the phenomenon reported by mistake often appears in two level-sensing devices in the control point of the method most critical, as the gray columns of sealing function often because ash discharge too much and insufficient height, the requirement that does not reach grey column sealing.When phosphorus stove furnace pressure is low, form negative pressure in the ash pipe easily, cause the extraneous air suck-back, not only make gray columns because condensation is condensed ash discharge difficult, the suck-back of air also brings very big potential safety hazard.
Summary of the invention
The object of the invention is exactly the deficiency that exists to above-mentioned prior art; Provide a kind of air of effectively avoiding to get into grey comb and electric cleaner; Prevent to produce the ash difficulty because of the air suck-back causes the grey condensation in the ash pipe; And the suck-back air gets into electric cleaner and brings explosion safety hidden danger, and when preventing the ash discharge operation because of the system phosphorus electric furnace material that takes place to collapse greatly forms the too high potential safety hazard of bringing of furnace pressure, ensure the ash discharge control device of electric cleaner of security and the operability of dry method ash discharge.
The objective of the invention is to realize through following technical scheme.
A kind of ash discharge control device of electric cleaner, its structure comprises:
Ash releasing tube-this ash releasing tube be one with the joining vertical siphunculus of electric duster ash bucket ash hole;
Last ash position meter-this ash position meter is positioned at ash releasing tube top;
Following ash position meter-this ash position meter is positioned at the ash releasing tube bottom;
The charging aperture of spiral ash hoist-this spiral ash hoist connects with the ash releasing tube lower port;
It is characterized in that its structure also comprises:
The gate valve of last gate valve-on this is one to be positioned at the gate valve of the ash releasing tube on meter top, ash position;
Following gate valve-this time gate valve is one to be positioned at the down gate valve of the ash releasing tube on ash position meter top.
The ash discharge control of a kind of electric cleaner of the present invention is characterized in that the described gate valve of going up is a cutter type gate valve with following gate valve.
The ash discharge control of a kind of electric cleaner of the present invention is characterized in that described upward gate valve, following gate valve connect with last ash position meter, following grey position meter signal feedback control.
The ash discharge control device of a kind of electric cleaner of the present invention, in electric duster ash bucket lower bank ash pipe, install one on gate valve, again spiral ash hoist top ash pipe in a following gate valve is installed.When last ash position meter sends the ash discharge signal, close the top gate valve, after open the bottom gate valve, open the spiral ash ejector then and carry out the ash discharge operation, ash position meter sends when stopping the ash discharge signal instantly, closes the bottom gate valve, stops the spiral ash ejector, opens the top gate valve then.
The ash discharge control device of a kind of electric cleaner of the present invention is established two gate valves on electric duster ash bucket bottom to spiral ash hoist section ash pipe.When last ash position meter sends ash discharge signal at stop top gate valve; Cut off the UNICOM of electric duster ash bucket and bottom ash column jecket; The safety control of a sealing function when this moment, the top gate valve was equivalent to ash manipulation; Even too much have air to get into ash pipe because of the inaccurate generation wrong report of following level-sensing device causes ash discharge, also can not get into electric cleaner because of the sealing function of top gate valve.In addition, even generation is collapsed material greatly and when forming big compression shock, also can be avoided the potential safety hazard of ash discharge operation because of the cut-out of last gate valve in the system phosphorus electric furnace.Instantly level-sensing device sends when stopping ash discharge signal at stop bottom gate valve; Cut off contacting of gray columns and extraneous air; This moment, the bottom gate valve was the safety convenience instrument of a sealing function; At this moment; Even it is low excessively that the inaccurate generation of following level-sensing device wrong report causes ash discharge too much to make as the reservation gray columns of sealing function, also prevent the suck-back of extraneous air because the sealing function of bottom gate valve is arranged, even and collapse material in the system phosphorus electric furnace and when forming furnace pressure impact greatly also because of there being following gate valve can not break through the reservation gray columns.This method can greatly ensure the security performance of dry method ash discharge technology and device; And can prevent effectively to produce the difficult problem generation of ash because of the air suck-back causes the grey condensation in ash pipe and the electric cleaner; Also can effectively prevent to expect to form the potential safety hazard that the high pressure impact brings because of system phosphorus electric furnace takes place to collapse greatly when ash discharge from operating, ensure the security and the operability of dry method ash discharge.
Description of drawings
Fig. 1 is a structural representation of the present invention.
1. ash buckets among the figure, 2. ash pipe is 3. gone up gate valve, 4. descends gate valve, 5. goes up ash position meter, 6. blanking ash position meter, 7. spiral ash ejector.
The specific embodiment
A kind of ash discharge control device of electric cleaner, its structure comprises: ash releasing tube 2-this ash releasing tube be one with the joining vertical siphunculus of electric duster ash bucket 1 ash hole; Last ash position meter 5-this ash position meter is positioned at ash releasing tube top; Following ash position meter 6-this ash position meter is positioned at the ash releasing tube bottom; The charging aperture of spiral ash hoist 7-this spiral ash hoist connects with the ash releasing tube lower port; Its structure also comprises: go up the gate valve of gate valve 3-this on and be one and be positioned at the gate valve that ash is counted the ash releasing tube on top; Following gate valve 4-this time gate valve is one to be positioned at the down gate valve of the ash releasing tube on ash position meter top.
The ash discharge control device of a kind of electric cleaner of the present invention, the described gate valve of going up is a cutter type gate valve with following gate valve; Described upward gate valve, following gate valve connect with last ash position meter, following grey position meter signal feedback control.
The ash discharge control device of a kind of electric cleaner of the present invention on existing dry method ash discharge technology and device basic, is established upper and lower two gate valves 3,4 between electric duster ash bucket bottom (going up meter top, ash position) and spiral ash hoist top (meter bottom, ash position down).The ash discharge method of operating is: when last ash position meter 5 sends the ash discharge signal, close top gate valve 3 to cut off the UNICOM of electric duster ash bucket 1 and bottom ash pipe 2, reach the purpose of sealing.Open bottom gate valve 4 then, open the 7 beginning ash discharges of spiral ash ejector again.Instantly ash position meter 6 sends when stopping the ash discharge signal, close bottom gate valve 4, has cut off contacting of gray columns 2 and extraneous air, stops the work of spiral ash ejector 7 then, opens top gate valve 3 at last.
This method is given full play to the sealing function of two gate valves; Even to cause ash discharge too much to keep gray columns low excessively because of the following wrong report of level-sensing device in the ash discharge process; Or generation is collapsed greatly when expecting in the system phosphorus electric furnace, and the seal request of grey column jecket and electric duster ash bucket also can be guaranteed.Thereby greatly ensure the security performance and normal ash discharge operating condition of dry method ash discharge technology and device.
Claims (3)
1. the ash discharge control device of an electric cleaner, its structure comprises:
Ash releasing tube-this ash releasing tube be one with the joining vertical siphunculus of electric duster ash bucket ash hole;
Last ash position meter-this ash position meter is positioned at ash releasing tube top;
Following ash position meter-this ash position meter is positioned at the ash releasing tube bottom;
The charging aperture of spiral ash hoist-this spiral ash hoist connects with the ash releasing tube lower port;
It is characterized in that its structure also comprises:
The gate valve of last gate valve-on this is one to be positioned at the gate valve of the ash releasing tube on meter top, ash position;
Following gate valve-this time gate valve is one to be positioned at the down gate valve of the ash releasing tube on ash position meter top.
2. the ash discharge control device of a kind of electric cleaner according to claim 1 is characterized in that the described gate valve of going up is a cutter type gate valve with following gate valve.
3. based on the ash discharge control device of the described a kind of electric cleaner of claim 1, it is characterized in that described upward gate valve, following gate valve connect with last ash position meter, following grey position meter signal feedback control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104490256A CN102553723A (en) | 2011-12-29 | 2011-12-29 | Ash discharge control device of electric dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104490256A CN102553723A (en) | 2011-12-29 | 2011-12-29 | Ash discharge control device of electric dust collector |
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| CN102553723A true CN102553723A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104490256A Pending CN102553723A (en) | 2011-12-29 | 2011-12-29 | Ash discharge control device of electric dust collector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289264A (en) * | 2015-10-08 | 2016-02-03 | 昆明理工大学 | Method for absorbing low-concentration SO2 (sulfur dioxide) by slurrying of yellow phosphorus electroprecipitating dust |
| CN105709938A (en) * | 2016-04-14 | 2016-06-29 | 南京佳旺安环境科技有限公司 | Dust remover dust collection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2230399Y (en) * | 1995-11-22 | 1996-07-03 | 哈尔滨圣洁股份合作公司 | Automatic dirt-excluding control device for boiler dust remover |
| CN1499130A (en) * | 2002-11-04 | 2004-05-26 | 中国科学院工程热物理研究所 | Ash ejector capable of controlling ash concentration in firebox of boiler in circulating fluid bed type |
| CN102233349A (en) * | 2010-04-28 | 2011-11-09 | 盐城豪瑞达实业有限公司 | Burning fly ash pretreatment technology and conveying apparatus |
-
2011
- 2011-12-29 CN CN2011104490256A patent/CN102553723A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2230399Y (en) * | 1995-11-22 | 1996-07-03 | 哈尔滨圣洁股份合作公司 | Automatic dirt-excluding control device for boiler dust remover |
| CN1499130A (en) * | 2002-11-04 | 2004-05-26 | 中国科学院工程热物理研究所 | Ash ejector capable of controlling ash concentration in firebox of boiler in circulating fluid bed type |
| CN102233349A (en) * | 2010-04-28 | 2011-11-09 | 盐城豪瑞达实业有限公司 | Burning fly ash pretreatment technology and conveying apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289264A (en) * | 2015-10-08 | 2016-02-03 | 昆明理工大学 | Method for absorbing low-concentration SO2 (sulfur dioxide) by slurrying of yellow phosphorus electroprecipitating dust |
| CN105709938A (en) * | 2016-04-14 | 2016-06-29 | 南京佳旺安环境科技有限公司 | Dust remover dust collection device |
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Application publication date: 20120711 |