CN102120110A - Slag discharge device in dust removal and desulfurization system - Google Patents
Slag discharge device in dust removal and desulfurization system Download PDFInfo
- Publication number
- CN102120110A CN102120110A CN2011100273359A CN201110027335A CN102120110A CN 102120110 A CN102120110 A CN 102120110A CN 2011100273359 A CN2011100273359 A CN 2011100273359A CN 201110027335 A CN201110027335 A CN 201110027335A CN 102120110 A CN102120110 A CN 102120110A
- Authority
- CN
- China
- Prior art keywords
- slag
- sedimentation basin
- scum pipe
- air inlet
- inlet pipeline
- 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
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention belongs to a slag discharge device in a dust removal and desulfurization system. The slag discharge device is characterized in that a slag-liquid storage area is arranged in a sedimentation basin; the upper part of the sedimentation basin is provided with a liquid storage area for separating the slag and liquid in a dust removal and desulfurization slurry, a container composed of the sedimentation basin, and a delivery channel of the dust removal and desulfurization slurry; the delivery channel is positioned at the upper part of the sedimentation basin and is formed by a slurry inlet and a purified liquid outlet corresponding to the slurry inlet; the bottom of the sedimentation basin is a slag storage area; a stripper is arranged in the sedimentation basin; the output port of the inlet pipe of the stripper is communicated with the lower part of a slag discharge pipe; an adsorption area formed at the lower end of the slag discharge pipe is arranged in the slag storage area; and a discharge delivery channel for the waste slag in the dust removal and desulfurization slurry is formed by the inlet pipe of the stripper and the slag discharge pipe. According to the technical scheme provided by the invention, a pneumatic lifting method is adopted, the slag and slurry produced by the dust removal and desulfurization system can be automatically cleared and discharged, and the oxidation process of the desulfurized slag and slurry is further completed. Meanwhile, the slag discharge device has the advantages of simple overall structure, small investment, good corrosion and wear resistance and low maintenance cost, is flexible and convenient to use and can meet the requirements of different users.
Description
Technical field
The invention belongs to the slag-draining device in a kind of dusting and desulfuring system.
Background technology
The method that is used for dust-removal and desulfurizing at present mainly contains four classes, be that lime method, limestone-based process, two alkaline process also have magnesium oxide method, for above-mentioned four kinds of dust-collecting sulfur-removing methods, all produce the desulfurizing byproduct that is insoluble in water in a large number, this accessory substance with after the collection of sedimentation basin precipitation, needs to discharge timely to handle in the dust-removal and desulfurizing process.For dedusting, the volume of smoke of collection also needs to drain timely simultaneously.Therefore, for desulfurization dust-removing technique, deslagging is an important link, and a good Slagoff method is very important, if can not timely and effectively waste residue be drained, will influence carrying out smoothly of whole desulfurization dust-removing technique.The method that is used for deslagging at present mainly contains four kinds, and first grab bucket method, this method are to lay track around sedimentation basin, and grab claw comes and goes operation in orbit, utilizes the grab bucket of grab claw that the deposit in the sedimentation basin is proposed the slag cleaning.This kind method extract decorating film for cleaning or powder more suitable, and when extracting the more liquid desulfurization slag of congee shape for cleaning, the cleaning extraction effect is not good.When particularly clearing up the desulfurization slag of extracting in the sedimentation basin, very easily produce the dead angle, and it is not thorough to cause cleaning to extract.This kind method needs operating personnel regularly to handle grab bucket to carry slag, and can not realize the automation of operation that removes the gred in the dust-removal and desulfurizing process simultaneously.Grab claw belongs to special equipment, and not only investment is big, and formality is also loaded down with trivial details.It two is slag stock pump methods, and this method is to utilize the extract function of slag stock pump, realizes the desulfurization slag in the sedimentation basin is cleared up.Though this kind method promptly is applicable to the flyash of dedusting, also be applicable to the desulfurization slag that the congee shape is more liquid.But such equipment cost height, this kind equipment long-time running serious wear simultaneously, the fault rate height, power consumption is big, and the operating cost height has had a strong impact on the application at dust-removal and desulfurizing and environmental protection industry (epi).It three is slag remover methods, because slag remover has equipment component to be immersed in the sedimentation basin, so the slurries of dust-removal and desulfurizing have stronger corrosivity to the equipment that soaks, and have caused reduce the service life of equipment.Also there is the long-time running serious wear in this kind equipment simultaneously, the fault rate height, and power consumption is big, the high deficiency of operating cost.And this kind equipment also exists when sedimentation basin is big, and equipment is huge, baroque defective.When particularly this kind equipment extracted the more liquid desulfurization slag of congee shape for cleaning, the cleaning extraction effect was not good.It four is labor cleaning's methods, utilizes artificial the realization that the desulfurization slag in the sedimentation basin is cleared up.This kind method wastes time and energy, inefficiency, and affected by environment big, condition of work is abominable.The supernatant liquid that must shut down when particularly removing the gred in operation or the emptying sedimentation basin just can be cleared up slagging-off, has had a strong impact on the effect of dust-removal and desulfurizing.
In sum, the common essential defect that exists of Slagoff method that is used for dusting and desulfuring system at present is can not realize the desulfurization slag in the sedimentation basin is cleared up deslagging automatically.And equipment investment is big, the operation cost height, and efficient is low, the not good deficiency that waits of desulfurization slag cleaning effect.
Summary of the invention
The object of the present invention is to provide a kind of slag-draining device that can realize automatic cleaning to the desulfurization slag mixture of various forms in the sedimentation basin in the dusting and desulfuring system.
The object of the present invention is achieved like this: the slag-draining device in this dusting and desulfuring system is to be provided with slag, liquid storage stream zone in sedimentation basin, the top of its sedimentation basin is the liquid state storage stream district of slag, liquid in the separation dust-removal and desulfurizing slurries, and the container that sedimentation basin constitutes reaches the transfer passage that the purified liquor outlet corresponding with it forms the dust-removal and desulfurizing slurries with the slurry inlet of being located at sedimentation basin top; The bottom of sedimentation basin is slag attitude storage stream district, gas is installed in sedimentation basin carries device, the delivery outlet that gas is carried the device air inlet pipeline is communicated with the bottom of scum pipe, the adsorption zone that the scum pipe bottom forms places in the slag attitude storage stream district, carries the air inlet pipeline of device and scum pipe by gas and has formed discharging transfer passage to waste residue in the dust-removal and desulfurizing slurries.
The gas that the effective quantity of many groups is installed that can walk abreast in the above-mentioned said sedimentation basin is carried device.Said gas is carried device and is made of air inlet pipeline and control valve and scum pipe, air inlet pipeline is communicated with pneumatic supply through control valve, the delivery outlet of air inlet pipeline is connected to the bottom of scum pipe, form adsorption zone in the lower port of air inlet pipeline delivery outlet with the scum pipe of lower part, the deslagging pipeline is provided with control valve, carries the air inlet pipeline of device and control valve and scum pipe by gas and has formed discharging transfer passage to waste residue in the dust-removal and desulfurizing slurries.
The air inlet pipeline delivery outlet that above-mentioned said gas is carried device and the connected mode of scum pipe are for tangential, vertical or between tangentially and one of the connected mode between vertical.The slag suction mouth of its scum pipe is a bell mouth shape.The bottom of above-mentioned said sedimentation basin is a pair of " V " word shape structure.
The technological progress that the present invention obtains is: the present invention mainly is a kind of improvement to slag-draining device in the existing dusting and desulfuring system.This technical scheme adopts airlift method that dusting and desulfuring system is resulted from slag in the sedimentation basin, slurry is cleared up automatically and is discharged, gas promptly is installed in sedimentation basin carries device, the adsorption zone that gas is carried the scum pipe bottom of device places in the slag attitude storage stream district of sedimentation basin, effect by external gases at high pressure, carry the bottom of device scum pipe because the inside and outside density contrast of pipe has formed a lifting force that makes progress along scum pipe at gas, promptly formed a binding domain in the bottom that gas is carried the device scum pipe, under the effect of adsorption zone, to the slag in the slag attitude storage stream district, slurry promotes cleaning and discharging automatically.Owing to being mixed with air in certain amount in the slag that is raised, the slurry, therefore, also can further finish oxidizing process (sulfite oxidation is become sulfate) simultaneously to desulfurization slag, slurry in that slag, slurry are promoted in cleaning and the discharging process automatically.By setting suitable gas slag ratio, can substitute desulfurization slag oxidation link traditional in the desulfurization dust-removal system, thereby reach the oxidation integrated effect of deslagging.Its integrated process has been simplified the mode of conventional oxidation process net formula stringing, makes the structure compact and reasonable more of dusting and desulfuring system, and it is simple and convenient to construct, little to original environment layout influence.The present invention simultaneously also has following characteristics: 1, can realize the desulfurization slag in the sedimentation basin is cleared up deslagging automatically.By the valve of being located in air inlet pipeline and the deslagging pipeline is controlled, not only can conveniently realize the desulfurization slag in the sedimentation basin, liquid are cleared up deslagging automatically, also can realize blowing function to deslagging pipeline and air inlet pipeline, avoided the clogging that takes place behind the dreg removing system long-play, thus guaranteed effectively dusting and desulfuring system continuously, stable, operation reliably.2, dust-removal and desulfurizing slag, liquid cleaning discharging are thoroughly.The many groups of parallel installation gas are carried device in sedimentation basin, and the slag suction mouth of scum pipe bell mouth shape all places respectively in the groove of sedimentation basin bottom " V " word shape structure, and dust-removal and desulfurizing slag, the liquid of assembling in the sedimentation basin bottom groove are totally cleared up completely and discharged.Simultaneously gas is carried the air inlet pipeline delivery outlet of device be designed to tangentially with type of attachment between scum pipe, vertical and between tangential and vertical between, can adjust and change the lifting flow velocity and the eddy flow effect that are discharged slag, liquid effectively.3, this invention also has simple, the small investment of overall structure, and anticorrosion antiwear is good, and maintenance cost is low, and applying flexible is convenient, can satisfy the needs of various different users.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
Fig. 2 carries the structural representation of device for gas.
Fig. 3 be the air inlet pipeline delivery outlet with scum pipe between the structural representation that tangentially is connected.
Fig. 4 be the air inlet pipeline delivery outlet with scum pipe between the structural representation that is connected of vertical direction.
Fig. 5 be the air inlet pipeline delivery outlet with scum pipe between between structural representation tangential and vertical connected mode.
The specific embodiment
Be that the present invention is further described for embodiment below with the accompanying drawing: as shown in Figure 1, this slag-draining device is to be provided with slag, liquid storage stream zone in sedimentation basin, the top of its sedimentation basin is the liquid state storage stream district 6 of slag, liquid in the separation dust-removal and desulfurizing slurries, and the container that sedimentation basin constitutes reaches the transfer passage that the stillness of night outlet 9 corresponding with it forms the dust-removal and desulfurizing slurries with the slurry inlet of being located at sedimentation basin top 8; The bottom of sedimentation basin is slag attitude storage stream district 5, gas is installed in sedimentation basin carries device, gas is carried device and is made of air inlet pipeline 2 and control valve and scum pipe 4, as shown in Figure 2, air inlet pipeline 2 is communicated with pneumatic supply through control valve 1, the delivery outlet of air inlet pipeline 2 is connected to the bottom of scum pipe 4, air inlet pipeline 2 delivery outlets place in the slag attitude storage stream district 5 with the adsorption zone of the lower port formation of the scum pipe 4 of lower part, deslagging pipeline 4 is provided with control valve 3, carries the air inlet pipeline 2 of device and control valve 1,3 and scum pipe 4 by gas and has formed discharging transfer passage to waste residue in the dust-removal and desulfurizing slurries.
In order to adapt to application to various different structure dusting and desulfuring systems, and the waste residue in the dust-removal and desulfurizing slurries, liquid can be carried out thoroughly clean cleaning discharging, the present invention can carry device according to demand parallel gas that varying number is installed in sedimentation basin of dusting and desulfuring system, present embodiment has only provided two groups of parallel stripper configuration schematic diagrames of installing, is used to illustrate its operation principle.Simultaneously in order effectively the slag, the liquid that give off in the dusting and desulfuring system in the slurries to be assembled collection, the present invention is " V " word shape structure with the bottom design of sedimentation basin, this structure can be separated slag, the liquid that gives off in the dusting and desulfuring system automatically, and the heavier slag body of its weight is assembled in the groove of bottom " V " the word shape structure that is collected in sedimentation basin automatically.The bottom of scum pipe 4 is an adsorption zone, and the slag suction mouth of scum pipe 4 is a bell mouth shape, and the adsorption zone of scum pipe 4 bottoms places in the groove of sedimentation basin bottom " V " word shape structure.Thereby further guaranteed automatically slag, the liquid that gives off in the dusting and desulfuring system to be carried out thoroughly clean cleaning and discharging effectively.
For oxidation and the realization fast lifting effect that improves desulfurization slag liquid.Air inlet pipeline 2 delivery outlets that present embodiment is carried gas device are designed to tangentially with the connected mode of 4 of scum pipes, vertical and between tangential and vertical between.Present embodiment has provided three kinds of embodiments, shown in Fig. 3-5, Fig. 3 is air inlet pipeline 2 delivery outlets and the scum pipe 4 tangential frame modes that are connected, this mode is with the tangential manner air inlet, can realize the eddy flow of slurries, prolong in the lifting process that the gas-liquid mixed time is long, strengthen the gas-liquid mixed degree, help the oxidation of desulfurization slag.Fig. 4 is air inlet pipeline 2 delivery outlets and 4 frame modes connected vertically of scum pipe, and this mode can increase the flow that promotes desulfurization slag with the vertical mode air inlet, realizes the fast lifting of desulfurization slag, can reduce the wearing and tearing of desulfurization slag to tube wall simultaneously.Fig. 5 be 4 of air inlet pipeline 2 delivery outlets and scum pipes between frame mode tangential and connected vertically, its effect no longer repeats between above-mentioned two kinds of embodiments.
When the present invention used, the slurries of dust-removal and desulfurizing 8 entered into sedimentation basin through entering the mouth, and in the groove of the slag of post precipitation dust-removal and desulfurizing, " V " word shape structure that slurry is collected in the sedimentation basin bottom automatically, the groove of " V " word shape structure constitutes slag attitude storage stream district 5.Open valve 1 and valve 3, valve 1 and valve 3 can be manually-operated gate or electrically operated valve, connect pneumatic supply (compressed-air actuated source is the roots blower that is used to carry out the desulfurization slag oxidation in the desulfurization dust-removal system), external compressed air is delivered to gas through valve 1 and carries device, gas is carried device and is placed in the sedimentation basin, the adsorption zone of scum pipe 4 bottoms places in the slag attitude storage stream district 5 of sedimentation basin bottom, compressed air enters into scum pipe 4 through air inlet pipeline 2, under compressed-air actuated effect, make scum pipe 4 inside and outside liquid produce density contrast, thereby formed a binding domain that makes progress along scum pipe 4 in the bottom of scum pipe 4, under the effect of adsorption zone, to the slag in the slag attitude storage stream district 5, slurry promotes cleaning, slag automatically through slag suction mouth 11, slurry is discharged in the collection slag bath 10 through scum pipe 4 and slag-drip opening 7.By adjusting the size that valve 1 and valve 3 are opened, can adjust the size of nearly tolerance of compressed air and bed drain purge easily, valve 1 and valve 3 are selected autocontrol valve for use, can realize the automatic control that slag, liquid are cleared up automatically, discharged in the automatic adjusting control of bed drain purge and the dusting and desulfuring system.The clear liquid that is stored in liquid storage stream district, sedimentation basin top 6 simultaneously is through exporting 9 next technology that enters into dusting and desulfuring system.
Blocked in order to prevent slag suction mouth 11, can carry out the blowback operation to slag suction mouth 11, promptly open valve 1, valve-off 3, compressed air enters into the sedimentation basin bottom through air inlet pipeline 2, discharge through slag suction mouth 11, form the bubble that seethes, thereby avoided slag suction mouth 11 effectively by the generation of bits plugging fault.
Claims (6)
1. the slag-draining device in the dusting and desulfuring system, slag, liquid storage stream zone are arranged in sedimentation basin, the top of sedimentation basin is the liquid state storage stream district of slag, liquid in the separation dust-removal and desulfurizing slurries, and the container that sedimentation basin constitutes reaches the transfer passage that the purified liquor outlet corresponding with it forms the dust-removal and desulfurizing slurries with the slurry inlet of being located at sedimentation basin top; The bottom of sedimentation basin is slag attitude storage stream district, it is characterized in that being equipped with in the sedimentation basin gas and carry device, the delivery outlet that gas is carried the device air inlet pipeline is communicated with the bottom of scum pipe, the adsorption zone that the scum pipe bottom forms places in the slag attitude storage stream district, carries the air inlet pipeline of device and scum pipe by gas and has formed discharging transfer passage to waste residue in the dust-removal and desulfurizing slurries.
2. according to the slag-draining device in the described dusting and desulfuring system of claim 1, the gas that the effective quantity of many groups is installed that it is characterized in that can walking abreast in the said sedimentation basin is carried device.
3. according to the slag-draining device in claim 1 or the 2 described dusting and desulfuring systems, it is characterized in that said gas carries device and be made of air inlet pipeline and control valve and scum pipe, air inlet pipeline is communicated with pneumatic supply through control valve, the delivery outlet of air inlet pipeline is connected to the bottom of scum pipe, form adsorption zone in the lower port of air inlet pipeline delivery outlet with the scum pipe of lower part, the deslagging pipeline is provided with control valve, carries the air inlet pipeline of device and control valve and scum pipe by gas and has formed discharging transfer passage to waste residue in the dust-removal and desulfurizing slurries.
4. according to the slag-draining device in the described dusting and desulfuring system of claim 3, it is characterized in that said gas puies forward connected mode between delivery outlet and the scum pipe of air inlet pipeline of device for tangential, vertical or between tangentially and one of the connected mode between vertical.
5. according to the slag-draining device in the described dusting and desulfuring system of claim 4, the slag suction mouth that it is characterized in that said scum pipe is a bell mouth shape.
6. according to the slag-draining device in the described dusting and desulfuring system of claim 5, the bottom that it is characterized in that said sedimentation basin is one " V " word shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100273359A CN102120110A (en) | 2011-01-26 | 2011-01-26 | Slag discharge device in dust removal and desulfurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100273359A CN102120110A (en) | 2011-01-26 | 2011-01-26 | Slag discharge device in dust removal and desulfurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102120110A true CN102120110A (en) | 2011-07-13 |
Family
ID=44248832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100273359A Pending CN102120110A (en) | 2011-01-26 | 2011-01-26 | Slag discharge device in dust removal and desulfurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102120110A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201543281U (en) * | 2009-04-08 | 2010-08-11 | 新纹股份有限公司 | Air-lift sludge discharging device for sludge in sedimentation tank |
| CN201625443U (en) * | 2009-12-17 | 2010-11-10 | 江苏振宇环保科技有限公司 | Sediment air-lifting device |
| CN201921562U (en) * | 2011-01-26 | 2011-08-10 | 保定市润利节能环保有限公司 | Slagging device in dust removal desulphurization system |
-
2011
- 2011-01-26 CN CN2011100273359A patent/CN102120110A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201543281U (en) * | 2009-04-08 | 2010-08-11 | 新纹股份有限公司 | Air-lift sludge discharging device for sludge in sedimentation tank |
| CN201625443U (en) * | 2009-12-17 | 2010-11-10 | 江苏振宇环保科技有限公司 | Sediment air-lifting device |
| CN201921562U (en) * | 2011-01-26 | 2011-08-10 | 保定市润利节能环保有限公司 | Slagging device in dust removal desulphurization system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102716639B (en) | High-efficiency wet-type electric dust removal and desulfuration system and process | |
| CN102764584B (en) | Efficient wet type electrostatic-precipitation desulfurization process | |
| CN202700306U (en) | Efficient wet type venturi pipe combined dedusting desulfurizer | |
| CN201921562U (en) | Slagging device in dust removal desulphurization system | |
| CN102586523B (en) | Blast furnace gas purification plant | |
| CN204429083U (en) | Smoke sweetening dust-controller for boiler | |
| CN112774320A (en) | Device and method for preventing secondary carrying and dedusting and demisting of rotational flow plate | |
| CN202683013U (en) | High-efficiency wet electric precipitation and desulfurization system | |
| CN210206306U (en) | Water bath dust removal device of lime digester for steelmaking | |
| CN201949805U (en) | Independent water distribution type dedusting desulfurizer | |
| CN202700363U (en) | Efficient wet type electric dedusting and desulfurizing system | |
| CN102120110A (en) | Slag discharge device in dust removal and desulfurization system | |
| CN209093116U (en) | A kind of Multifunction water-saving stone desulphurization water dust scrubber | |
| CN211963411U (en) | Novel bag type dust collector | |
| CN208546662U (en) | Wet type gas main dust collector and dedusting gas main | |
| CN2505710Y (en) | Double-tube cyclone wet flue gas cleaner | |
| CN2695089Y (en) | Sproy cyclone desulfur dust separator | |
| CN206350991U (en) | A kind of desulphurization plant of novel energy-conserving | |
| CN201006397Y (en) | Novel compound highly effective desulfuration dust cleaner | |
| CN200991632Y (en) | Smoke-return type sprinkling dust-control apparatus | |
| CN219187268U (en) | Light drift removing device in slag | |
| CN214680568U (en) | Prevent whirl board dust removal defogging device that secondary carried | |
| CN210159395U (en) | Environment-friendly impact type dust remover | |
| CN211987813U (en) | Kiln gas purification device is used in nanometer calcium carbonate production | |
| CN201801533U (en) | Blast furnace gas dust removing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110713 |