CN2163692Y

CN2163692Y - Anti-dewing dust remover

Info

Publication number: CN2163692Y
Application number: CN 93220552
Authority: CN
Inventors: 李长富; 李震亚
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-06
Filing date: 1993-08-06
Publication date: 1994-05-04
Anticipated expiration: 2003-08-06

Abstract

The utility model relates to an anti-dewing dust remover, which is mainly composed of a standpipe, a jacket tube, a dust hopper, a coronal line, an electric heating element, an ash cleaner and a high-pressure power supply system. The anti-dewing dust remover is characterized in that an anode dust removing brush, a cathode dust removing brush and an anode dust removing shovel are arranged at the ring shelf of the ash cleaner, which cleans the anode and the cathode in working status. A brush discharge electrode is arranged in the ash bucket for repressing secondary blowing dust. The utility model has the advantages of large inlet dust concentration, large filtered air flow, convenient cleaning, compact structure, low cost, convenient maintenance, small ground occupation, no moisture condensation and high dust removing effect.

Description

Anti-dewing dust remover

The utility model relates to environment protection equipment; promptly be to utilize machinery, electrostatic precipitation mechanism and the resistive connection that designs reveals multimachine reason deduster, it mainly is made of sleeve pipe, ash bucket, corona wire, electric heating element, deashing device and the high voltage power supply that standpipe, bottom have a reverse taper.

At present, the kind of deduster is a lot, but all has certain problem.As cyclone dust collectors are the centrifugal force that utilizes swirling eddy to produce is separated dust from gas devices.Be generally used for the grit of particle separation diameter greater than 10 μ m, general efficient is about 85%.For the superfine dirt that floats is unable.Because in tornadotron, the motion of solid particle is a continuous turbulent flow admixture, when the turbulent flow eddy flow reverses in cone space forms, the dust of having separated, the swirling eddy that might be made progress is taken away from escape pipe.Simultaneously, the dust of having separated in the ash bucket might be taken away from ash bucket once more by the secondary gas flow in the boundary layer, so its normal and other duster parallels use.Electrostatic precipitator is by the sparking electrode that produces corona current and form the solid particle of negative electrical charge or the collector electrode of flue dust is formed.Rely on dc high voltage electric field to capture the dust that is suspended in air-flow.It is a kind of cleaner preferably.Can isolate the grit that particle diameter is 0-10 μ m, efficiency of dust collection depends primarily on the flow velocity of gas, the factors such as intensity, electrode situation and dust performance of electric field, and efficiency of dust collection can reach more than 99%.But, can make dust charged insufficient because gas flow rate is too fast in the electrostatic precipitator.The dust content height can make the hurried decline of corona current, also may level off to zero when serious.These phenomenons all will influence efficiency of dust collection.Therefore, people are seeking the more rational cleaner of structure.The notification number that China's patent is announced is the cyclone electrostatic deduster of CN2119964 and the repeatedly rotation electrostatic precipitator that notification number is CN2097689, and than simple cyclone dust collectors or electrostatic precipitator, performance has had very big improvement, and efficient improves greatly.It is big that but these two kinds of dedusters all exist volume, complex structure, maintenance difficult, the easy dewfall of under the big state of gas humidity, working, vibration dust-cleaning mechanism is at the top, rapping power is little, and the dust difficult drop-off influences the dust migration velocity and is easy to generate prickle hypertrophy and the creepage electrical breakdown accident that causes of insulator dust stratification; Rapping power is strong, easily produces the broken and corona wire broken string of insulator.

The purpose of this utility model is to overcome above all weak points, and provides a kind of inlet dust concentration big, and it is big to handle air quantity, and field gas velocity is fast, and deashing is convenient and reliable, efficiency of dust collection height, the high-efficiency dust remover of the multimachine reason that resistive connection reveals.

The utility model adopts following scheme to solve.It mainly is made up of a standpipe and sleeve pipe, ash bucket, corona wire, dust-blocking cover, electric heating element, ash bucket discharging electrode, deashing device, air valve, high voltage power supply of being enclosed within outside it.It is characterized in that:

Corona wire adopts coating steel pipe to make, and is welded with n row prickle around it, and there is one grade of dust hood on top near the insulator place, and there is the ash bucket discharging electrode that stops Returning flow to roll the effect of dust again the lower end.Ash bucket discharging electrode is a bullet, and prickle is arranged at the bottom.

Deashing device is by ring stand, and the anode deashing shovels, anode deashing brush, cathode ash-clearing brush, pulley, steel wire rope, reel, stepless speed-regulating motor, decelerator, lead, V-arrangement guide plate, limit switch, compositions such as high voltage insulator.Anode deashing brush is installed on the ring stand of deashing device, the cathode ash-clearing brush, anode deashing shovels etc. have high voltage insulator to isolate between cathode ash-clearing brush and the ring stand, make the deashing device can be under the deduster duty, opposition inside pipe wall and corona wire and on the prickle deashing.Ring stand is lifted in the standpipe with steel wire rope, and with the tightening up and loosen and rise in standpipe or descend of steel wire rope, the speed that ring stand rises in standpipe or descends is controlled by stepless speed-regulating motor.

Have two ring stand leads in the standpipe at least, keep ring stand normally operation up and down in standpipe, and the very big inclination of unlikely generation.Even under steel wire rope broken string state, the phenomenon of the short circuit that ring stand contacts with corona wire can not take place yet.The top of standpipe is equipped with the push rod with cathode ash-clearing brush equal number.The upper and lower of standpipe is equipped with limit switch respectively.

Electric heating element to the insulator heating, keeps the insulator drying around the corona wire insulator, avoids dewfall.

The outside of standpipe is with under one and has reverse taper, and the sleeve pipe of tangent air inlet is arranged at top.

In view of above feature, the utility model has following advantage:

1, the inlet dust concentration is big, and 2, air velocity is fast in the electric field, 3, to handle air quantity big, 4, deashing is convenient and reliable, 5, the compact conformation cost is low, and 6, be adapted to purify high specific resistance and strong sticky dust, 7, easy to maintenance, floor space is minimum, and 8, resistive connection reveals, 9, the efficiency of dust collection height.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is an another kind of structural representation of the present utility model.

Fig. 3 is the ring stand and the anode deashing brush of deashing device, the assembling schematic diagram of anode deashing shovel and cathode ash-clearing brush

Embodiment 1:

From Fig. 1, Fig. 3, as can be seen, there is an air outlet (22) on the top of standpipe (1) near the side of high-tension insulator bottom, making it like this is the anode tube of electrostatic precipitation, is again the escape pipe of cyclone dust collectors.The outside of standpipe (1) is with a sleeve pipe (3).The bottom of sleeve pipe (3) is the diffusion type reverse taper, and the upper side of sleeve pipe (3) has a tangential air inlet (9).Sleeve pipe (3) is the whirlwind tube of cyclone dust collectors, is again the muff of electrostatic precipitator.Suspention has corona wire (2) in the middle of standpipe (1), the top of corona wire (2) is connected with high voltage source (21), the upper end of corona wire (2) is fixed on the cover plate (19) by high-tension insulator (15), inboard in cover plate (19), an electric heating element (16) is arranged around high-tension insulator, give high-tension insulator (15) heating, to prevent high-tension insulator (15) dewfall.Corona wire (2) is made with coating steel pipe, is welded with n row prickle around it, and there is the ash bucket discharging electrode (8) that stops Returning flow to roll the dust effect again the lower end, the tapered body of ash bucket discharging electrode (8), and there is aciculiform discharge prickle on the base.Ash bucket discharging electrode (8) is the weight of corona wire (2), is again the radiation shield of cyclone dust collectors.The reverse taper of ash bucket (6) top and sleeve pipe (3) bottom joins, and ash bucket (6) bottom and air valve (7) join.The ring stand of deashing device (10) by steel wire rope (12) by the pulley (18) on the ring stand (10) with the pulley (13) on the cover plate (19) is unsettled is lifted in the standpipe (1), rotation with reel (14), tightening up and loosen of steel wire rope (12), and in standpipe (1), rise or descend, the speed that rises or descend is controlled by stepless speed-regulating motor (11).The n identical with the prickle columns cathode ash-clearing brush (23) also is installed on the ring stand (10), and be evenly distributed on the ring stand (10), between cathode ash-clearing brush (23) and the ring stand (10) connector (28) is arranged, high voltage insulator (27) is being arranged between connector (28) and the ring stand (10) or between connector (28) and cathode ash-clearing brush (23), High-Voltage Insulation bar (27) is being arranged ' (not drawing among the figure).Anode deashing brush (24) is filled on around ring stand (10) top, anode deashing shovel (26) is filled on around ring stand (10) bottom, when ring stand (10) when moving up and down, make deduster in working order down, can be simultaneously to the inwall and corona wire (2) deashing of standpipe (1).N the push rod (17) of brushing (23) equal number with cathode ash-clearing is housed on cover plate (19), and push rod (17) can make cathode ash-clearing brush (23) displacement, makes it be in level or downward-sloping, or upwards shrinks placement.That is to say that when ring stand (10) is descending cathode ash-clearing brush (23) cantilever is the level of state, and cleans the dust on the corona wire (2) with water; When ring stand (10) was up to the upper limit position of standpipe (1), cathode ash-clearing brush (23) was under the effect of push rod (17), with the structural change of connector (28) and cathode ash-clearing brush (23) cantilever or downward-sloping or shrink and make progress.In the inside of standpipe (1) at least two leads (4) are installed, guiding V shaped slab (29) on the ring stand (10), ring stand (10) will be moved up and down along lead (4), be unlikely in standpipe (1), to touch and take place very big inclination, even steel wire rope (12) is disconnected, can not take place yet ring stand (10) with corona wire (2) thus contact the accident of being short-circuited.Top and bottom in standpipe (1) are equipped with the extreme position that a limit switch (25) (not drawing among the figure) and (5) move up and down with restriction ring stand (10) respectively.Stepless time adjustment motor (11), reel (14), pulley (13) be contained in cover plate (19) above.

Embodiment 2:

As shown in Figure 2, sleeve pipe of the present utility model (3) is than short one section of standpipe (1), and standpipe (1) is a siphunculus, and upper side does not have gas outlet (22), and cleaned air passes is directly discharged to sky from the top of standpipe (1).The high-tension insulator (15) of corona wire (2) upper end is installed on the support (31) on standpipe (19) top, and rainhat (30) is arranged above the support (31), and other structure is identical with embodiment 1.

Claims

1, a kind of resistive connection reveals multimachine reason deduster, by standpipe (1), and sleeve pipe (3), ash bucket (6), corona wire (2), dust-blocking cover (20), electric heating element (16), ash bucket discharging electrode (8), air valve (7), high voltage power supply (21) and deashing device are formed, and it is characterized in that:

(1) anode deashing brush (24) is installed on the ring stand of deashing device (10), cathode ash-clearing brush (23), anode deashing shovel (26),

(2) ring stand (10) is lifted in the standpipe (1) by pulley (18) and (13) with steel wire rope (12), by reel (14) and stepless speed-regulating motor (11) control lifting and speed,

(3) have at least two to keep the normal up and down lead (4) that moves of ring stand (10) within it in the standpipe (1),

(4) there is high voltage insulator (27) to isolate between cathode ash-clearing brush (23) and the ring stand (10),

(5) top of standpipe (1) is equipped with the push rod (17) of brushing (23) equal number with cathode ash-clearing,

(6) the tapered body of ash bucket discharging electrode (8), prickle is arranged at the bottom, is connected the lower end of corona wire (2),

(7) corona wire (2) adopts coating steel pipe to make, and is welded with n row prickle around it.

2, resistive connection according to claim 1 reveals multimachine reason deduster, it is characterized in that the quantity of cathode ash-clearing brush (23) is identical with the columns of corona wire (2) prickle, is all n, and is evenly distributed on the inside of ring stand (10).

3, resistive connection according to claim 1 reveals multimachine reason deduster, it is characterized in that on the border, top of ring stand (10) anode deashing brush (24) being installed all.

4, resistive connection according to claim 1 reveals multimachine reason deduster, it is characterized in that on the border, bottom of ring stand (10) anode deashing shovel (26) being installed all.

5, resistive connection according to claim 1 reveals multimachine reason deduster, and the bottom that it is characterized in that sleeve pipe (3) is the diffusion type reverse taper, and upper side has a tangential air inlet (9).