CN2207228Y - Duster - Google Patents
Duster Download PDFInfo
- Publication number
- CN2207228Y CN2207228Y CN 94241276 CN94241276U CN2207228Y CN 2207228 Y CN2207228 Y CN 2207228Y CN 94241276 CN94241276 CN 94241276 CN 94241276 U CN94241276 U CN 94241276U CN 2207228 Y CN2207228 Y CN 2207228Y
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- dust
- deduster according
- dust removing
- electrostatic precipitator
- discharge electrode
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Abstract
The utility model provides a duster which comprises an electrostatic dust remover, a dust cleaning device, a dust storing device and a granule conveying device. The utility model is characterized in that the center of the electrostatic dust remover is a dusty gas channel. A metal net and a net-shaped discharge electrode which are mutually parallel are ranged winding around the channel, and a dust removing unit which is composed of fluxible granules is positioned between the net and the net-shaped discharge electrode. The upper part of the dust removing unit is connected with a sealing hopper, and the lower part is connected with a balancing hopper. A dusty gas side channel is positioned between the dust removing units which are adjacent. The utility model has the advantage of small working resistance, high dust removing efficiency, small size, low cost and reliable operation.
Description
The utility model relates to a kind of industrial waste gas dust collect plant, exactly be a kind of be the electrostatic precipitator of dust collecting electrode with the circulating granular layer, belong to environmental technology field.
Be used to capture the deduster of industrial dust at present, mainly contain cyclone dust, wet scrubber, sack cleaner and gravel bed filter etc.Above dust collector efficiency has nothing in common with each other, and is that resistance is big but a common shortcoming is arranged, the energy resource consumption height.Though electrostatic precipitator has the efficient height, the advantage that resistance is little, but disposable input cost height again because volume is big, are unfavorable for that the improvement of long-established enterprise is promoted.
In recent years, development along with industrial technology, the novel dust removing device constantly occurs, as number of patent application is 93112195.7 patents of invention that are called " static reinforcing type granular-layer duster ", utilize the absorption principle of electrically charged particle layer under the electrostatic field, solved the contradiction of efficiency of dust collection and SR effectively.But this patent in force, and in view of realizing highfield and the needs that reduce SR between two parallel poles, stratum granulosum thickness can not be too big, under the acting in conjunction of electric field force and mechanical resistance, the stratum granulosum circulation rate is inhomogeneous, causes local cavity, influences efficiency of dust collection.In addition, when handling the high concentrate dust air-flow, in order to reduce SR, must strengthen the particulate material circulation rate, its result one has reduced the particulate material efficiency of dust collection, has also strengthened the wear extent of particulate material on the other hand, and make conveying device too complicated, influence the system works reliability.
It is little that the purpose of this utility model provides a kind of resistance, the efficient height, and entrance concentration is big, and cost is low, and floor space is little, and is reliable, is applicable to the dust arrester of various high temperature, special occasions such as inflammable and explosive simultaneously.
The deduster that the utility model provides comprises electrostatic precipitator, deashing device, dust storage device and particulate material conveying device, it is characterized in that: the center of electrostatic precipitator is the dusty gas passage, arranging the dust removing units of forming in the flowable particulate material between the two by the wire netting that is parallel to each other and netted discharge electrode and boundary around this passage, the top of each dust removing units joins with the envelope hopper, and the bottom joins with equal hopper.It between the adjacent dust removing units dusty gas wing passage.
Diffusion improves efficiency of dust collection with producing again in the particulate material shuttling movement in order to prevent to capture dust, and netted discharge electrode is arranged on the exhaust outlet place of electrostatic precipitator in the utility model.
Uniform long 10-16mm on netted discharge electrode and the wire netting, the mesh of wide 1-1.6mm, the long axis of this mesh and the horizontal plane of electrostatic precipitator are by the circle centre position of electrostatic precipitator 15 ° of-25 ° of angles that are inclined upwardly.
The dusty gas wing passage that is positioned at the electrostatic precipitator middle part can be formed by the blast pipe of the uniform equal discharge orifice of outer surface, is built-in with the worm-gear type rotational flow generator at blast pipe.
In order to increase the eddy flow effect, the vertical plane of the relative blast pipe of blade major axis of rotational flow generator is tilted 25 °-35 °.
In order to increase the current-sharing effect, can make the equal discharge orifice long axis on the blast pipe vertical with the blade long axis of rotational flow generator.
Deashing device is to finish one of key of the present utility model, and its structure is the shell that a sealing is arranged, and has the dust mouth above shell, and there is the ash storage chamber of a band sealing bin gate below, is the cone screen cloth that rotates between the charging aperture of deashing device and discharging opening.
The particulate material conveying device comprises the regenerated granule elevator that cooperates with deashing device, at the aft mounted material level stabilising arrangement of being made up of flash pipe and material-storing box of elevator.The material-storing box bottom is through the feeding inlet of transmission hinge dragon with deashing device.In the material-storing box flashboard can be set, this flashboard drives solenoid-driven by monitoring material position photoelectric tube, the single-chip microcomputer that envelope hopper place is provided with.
The utility model has been compared following characteristics with existing dust arrester:
The one, efficiency of dust collection can capture fine dust and aerosol more than 0.1 micron up to more than 99.99%;
The 2nd, SR is little, and stiction is less than 100Pa, and dynamically highest resistance is less than 300Pa, every processing 10,000 m
3The comprehensive power consumption of air-flow is less than 3KWh;
The 3rd, air flow inlet concentration is big, is used for mineral dust such as building materials and reclaims and can reach 100g/nm
3Being used for weaving waits the fibre dust recovery can reach 12g/nm
3
The 4th, can be applicable to the hot environment below 400 °.Because electric-field intensity only needs 4000-6000v/cm, can not influence the variation of high-tension current because of variation of temperature, select suitable particulate material and existing regenerating unit for use, can also absorb flammable, toxic gas, wide accommodation;
The 5th, because particulate material is as dust collecting electrode, big thousands of times of the board-like dust collecting electrode effective area of the conventional electrostatic precipitator of its surface area ratio, thereby machine volume dwindles greatly, investment reduces, and only is equivalent to about 10% of performance electrostatic precipitator;
The 6th, be in operation and upgrade filtrate automatically, mix sensor and can do down unmanned with microcomputer program control.
Below in conjunction with Figure of description in detail embodiment of the present utility model is described in detail.
Accompanying drawing one complete machine structure schematic diagram of the present utility model;
Accompanying drawing two is schematic diagrames of the utility model electrostatic precipitator;
Accompanying drawing three is schematic top plan view of accompanying drawing two;
Accompanying drawing four is netted discharge electrode of the utility model and wire netting schematic diagram;
Accompanying drawing five is that the utility model blast pipe launches schematic diagram;
Accompanying drawing six is that schematic diagram is looked in the left side of accompanying drawing five;
In above-mentioned accompanying drawing, 1-blast pipe, 2-electrostatic precipitator, 3-current-sharing hopper, 4-choke valve, 5-transmission hinge dragon, the 6-deashing device, 7-dust storage device, 8-pipeline, 9-micronic dust recovery channel, 10-elevator, 11-measurer, the 12-material storing box, 13-flash pipe, 14-blower fan, the 15-choke valve that links, the netted discharge electrode of 16-, 17-wire netting, the 18-particulate material, 19-dusty gas wing passage, 20-dust removing units, 21-seals hopper, 22-blade, 23-rotational flow generator, the 24-mesh, the equal discharge orifice of 25-, 26-dust mouth, the 27-shell, 28-cone screen cloth, the outlet of 29-regenerated granule, the 30-ashpit, 31-dust-laden particle inlet, 32-filter bag, the 33-dust removing door, the 34-flashboard.
As shown in the figure, the utility model comprises blast pipe 1, electrostatic precipitator 2, deashing device 6, dust storage facility 7, material storing box 12, and particulate material conveying device and high voltage electrostatic device.Wherein, blast pipe 1 is positioned at the center of electrostatic precipitator 2, uniform dust removing units 20 around it.The rotational flow generator 23 that is provided with in blast pipe 1, the vertical plane of the relative blast pipe 1 of the major axis of its blade 22 tilts 25 °-35 °.Have the equal discharge orifice 25 of gas on the tube wall of air inlet pipe 1, equal perforated areas of discharge orifice 25 should account for the 30-40% of tube wall effective area.All the opening shape of discharge orifice (25) can have difference, and the utility model is used semicircle venetian blind type structure on a selective basis, and makes long axis vertical with blade 22 long axis of rotational flow generator 23.
Electrostatic precipitator 2 is dust-contained airflow main channel (unenclosed construction of blast pipe is not for example established in the main channel that certainly yet can adopt other version) with blast pipe 1, and uniform dust removing units 20 is to select " V " shape structure for well around it.It between the adjacent dust removing units dusty gas wing passage 19 of sealing.Dust removing units 20 is made up of in the flowable particulate material 18 between the two wire netting 17 that is parallel to each other and netted discharge electrode 16 and boundary.Wire netting 17 and netted discharge electrode 16 adopt the punching of the steel plate of different size to form.Wherein, wire netting 17 is generally got thickness 2-3mm by the overall construction intensity design, and netted discharge electrode is pressed the design of electric field force type varying stress, generally gets thickness 0.8-1.5mm.The width of the mesh 24 of wire netting 17 and 16 punching out of netted discharge electrode should be the 50-60% in particulate material footpath, but general value 1-1.6mm, and length is 10-16mm, percent opening 〉=40%.The horizontal plane of the long axis of mesh 24 and electrostatic precipitator 2 is by the center of electrostatic precipitator 2 15 ° of-25 ° of angles that are inclined upwardly.The surface area of netted discharge electrode 16 is determined by power system capacity, generally by wearing net wind speed 0.5-0.8m/s conversion.Be one group of envelope hopper 21 that the sealing air-flow is used above dust removing units 20, the below of dust removing units 20 and conical equal hopper 3 join.Particulate material 18 is selected for use and the close material of dust physical characteristic of handling as far as possible, for example, handles flue gas of vertical cement kiln and is advisable to select clinker for use, and particle diameter is between 2-3mm, than resistance 10
15Ω mm/m.
The electrostatic precipitator of said structure is the dust collecting electrode of electrostatic precipitation with the particle bed of material, dust-contained airflow is removed big dust particle after dusty gas wing passage 19 through blast pipe 1, enter the particulate material 18 from the mesh 24 of wire netting 17, under suitable wind speed, greater than 10 microns dust at comprehensive coalescence mechanism and gravity, spread, hold back under the effect and captured by stratum granulosum, subparticle near vertical netted discharge electrode 16 time under the comprehensive function of electric coalescence and electric field force, be attracted on the surface of charged stratum granulosum, finish capture dust.Subsequently, by the circulation deashing of particulate material, realize that coefficient moves continuously.The mesh that air-flow after the dust removal process passes netted discharge electrode 16 enters atmosphere by exhaust outlet.
This kind dust collecting structure has following two characteristics: the one, and exhaust outlet places the electric-field intensity highest point, can prevent to have captured the again diffusion of dust with the particulate material shuttling movement, helps raising the efficiency; The 2nd, under the effect of electric field force, the stratum granulosum that flows has a with different levels graded on speed.Be in the particulate material of dust concentration eminence, be subjected to electric field force little, circulation rate is fast, helps reducing resistance, improves dust inlet concentration; The particulate material that is in the exhaust outlet place is subjected to electric field force big, and decrease speed is slow, helps raising the efficiency.
The particulate material circulation is to realize the recirculation of particulate material with the task of proportioner, adopts the conveying mechanism of a closed loop.Handling non-poisonously, during non-flammable explosive gas, adopting rotary strainer formula deashing device 6 shown in Figure 1.The blast pipe of dust mouth 26 and dust storage device 7 joins with metallic conduit 8 and does antistatic and handle above the shell 27 of its sealing.At outer casing underpart one ashpit 30 that seals is arranged, upper left dust-laden particle inlet 31 joins with material-storing box 12 and the flow divider 4 that is positioned at current-sharing hopper 3 bottoms by the transmission hinge dragon 5 of level; Right-hand is that a regeneration particle outlet 29 matches with the elevator 10 of vertical effect.Between dust-laden particle inlet 31 and regenerated granule inlet 29, be a cone screen cloth 28(or a cylinder screen cloth that rotates).Cone screen cloth 28 is the 2-3mm punching of the steel plate with thickness usually, and mesh adopts long 8-10mm, the strip hole of wide 0.8-1mm, and its long axis is parallel with the axis of cone screen cloth.The rotating speed of cone screen cloth 28 is got 180-250rpm.In the work, the larger-diameter dust and the ground grains material that is in operation are by under the mesh screen, regularly remove from ashpit 30, fine dust then passes screen cloth with air-flow and is sent in the dust storage device 7 by dust mouth 26 under suction function, regenerated granule after deashing is handled is then sent in the envelope hopper 21 through measurer 11 by elevator 10, makes the envelope hopper be in stable material level all the time.The acquisition of stablizing material level also can utilize and be placed in photoelectric tube and the single-chip microcomputer of envelope on the hopper 21 and cooperate the control magnetic valve to open or close the flashboard 34 that is installed in the material-storing box 12 to finish.
Dust storage device 7 adopts the small-sized sack cleaner of establishing overhead filter bag 32 in the shell of sealing.Be the Dust Storage Room of band sealing dust removing door 33 below its air intake pipe orifice, filter the air outlet of the residual dust in back by the shell top through filter bag 32 and under blower fan 14 acts on, in micronic dust recovery channel 9 sends back to the blast pipe 1 of system, handle again.Dust storage device 7 collocation forms are two alternations in the work, by 15 controls of two interlock choke valves, make it finish control of dust, dust fall work.Blower fan 14 is negative pressure sources of deashing device 6, requires total head 1500-1800Pa, and air quantity is got the 5-8% that system always handles air quantity.
When handling poisonous and flammable explosive gas, particulate material should select that this gas is had adsorbing material with high specific resistance, and its regenerating unit also should utilize known technology to adjust accordingly.
High voltage power supply device should satisfy following requirement: 0-35KV is adjustable continuously for (1) specified DC pulse crest voltage.(2) rated current should guarantee every m by netted discharge electrode 16 gross areas apolegamy
2〉=3mA.(3) have current-limiting apparatus and guarantee system, high-tension current excess load not during short circuit.(4) have acousto-optic and protect alert and duty Displaying Meter.(5) negative polarity output, plus earth.
Implementing other technologies of the present utility model, to be those of ordinary skill of the same trade known, do not give unnecessary details.
Claims (9)
1, a kind of deduster, comprise electrostatic precipitator (2), deashing device (6), dust storage facility (7) and particulate material conveying device, it is characterized in that: the center of electrostatic precipitator (2) is the dusty gas passage, arranging the dust removing units of forming in the flowable particulate material (18) between the two by the wire netting that is parallel to each other (17) and netted discharge electrode (16) and boundary (20) around this passage, the top of dust removing units (20) joins with envelope hopper (21), the bottom joins with equal hopper (3), is dusty gas wing passage (19) between the adjacent dust removing units (20).
2, deduster according to claim 1 is characterized in that: netted discharge electrode (16) is arranged on the exhaust outlet place.
3, deduster according to claim 1 and 2, it is characterized in that: netted discharge electrode (16) and wire netting (17) are gone up uniform long 10-16mm, the mesh of wide 1-1.6mm (24), the horizontal plane of long axis of this mesh (24) and electrostatic precipitator (2) is by the circle centre position of electrostatic precipitator (2) 15 ° of-25 ° of angles that are inclined upwardly.
4, deduster according to claim 1 is characterized in that: described dusty gas wing passage is the blast pipe (1) of the uniform equal discharge orifice of outer surface (25), and worm-gear type rotational flow generator (23) is arranged in the blast pipe (1).
5, deduster according to claim 4 is characterized in that: the vertical plane of the relative blast pipe of major axis (1) of rotational flow generator (23) tilts 25 °-35 °.
6, deduster according to claim 4 is characterized in that: all discharge orifice (25) long axis is vertical with blade (22) long axis of rotational flow generator (23).
7, deduster according to claim 1, it is characterized in that: deashing device (6) has the shell (27) of a sealing, have dust mouth (26) in shell (27) top, there is the ash storage chamber of a band sealing bin gate (30) below, is the cone screen cloth (28) that rotates between the charging aperture of deashing device and discharging opening.
8, deduster according to claim 1, it is characterized in that: the particulate material conveying device comprises the regenerated granule elevator (10) that cooperates with deashing device, at the aft mounted material level stabilising arrangement of being made up of flash pipe (13) and material-storing box (12) of elevator (10), material-storing box (12) bottom is through the feeding inlet of transmission hinge dragon (5) with deashing device (6).
9, deduster according to claim 8 is characterized in that: a flashboard (34) is arranged in the material-storing box (12), and the monitoring material position photoelectric tube that flashboard (34) is located to be provided with by envelope hopper (21), single-chip microcomputer drive solenoid-driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94241276 CN2207228Y (en) | 1994-09-03 | 1994-09-03 | Duster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94241276 CN2207228Y (en) | 1994-09-03 | 1994-09-03 | Duster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207228Y true CN2207228Y (en) | 1995-09-13 |
Family
ID=33848083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94241276 Expired - Fee Related CN2207228Y (en) | 1994-09-03 | 1994-09-03 | Duster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207228Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923405A (en) * | 2015-07-02 | 2015-09-23 | 浙江天地环保工程有限公司 | Wet type electrostatic dust and fog removing device |
| CN105194934A (en) * | 2015-10-27 | 2015-12-30 | 浙江天地环保工程有限公司 | Demisting and dedusting device for wet chimney of coal-fired power plant |
| CN105642444A (en) * | 2016-01-08 | 2016-06-08 | 王富强 | Tubular electrostatic precipitator |
-
1994
- 1994-09-03 CN CN 94241276 patent/CN2207228Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923405A (en) * | 2015-07-02 | 2015-09-23 | 浙江天地环保工程有限公司 | Wet type electrostatic dust and fog removing device |
| CN105194934A (en) * | 2015-10-27 | 2015-12-30 | 浙江天地环保工程有限公司 | Demisting and dedusting device for wet chimney of coal-fired power plant |
| CN105642444A (en) * | 2016-01-08 | 2016-06-08 | 王富强 | Tubular electrostatic precipitator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |