CN2512511Y

CN2512511Y - Four mechanism duster

Info

Publication number: CN2512511Y
Application number: CN 01279954
Authority: CN
Inventors: 文良忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-25
Filing date: 2001-12-25
Publication date: 2002-09-25
Anticipated expiration: 2011-12-25

Abstract

The utility model relates to a four mechanism duster which consists of a base part, an electric field part, a gas filter part and a blower part. A wind inlet pipeline is formed by a distorted diffusing tornado dust collector which is arranged under the electric field in an inclined way, the structure of the electric field utilizes the combination of the dust polar boards with equal polar distances and equal areas and can be divided into 7 cases, 12 cases and 19 cases according to different requirements; the conducting and isolating device is used for conducting and isolating on the position which the dust catcher contains the highest dust concentration; the top of the electric field is provided with the gas filter. The utility model elevates the efficiency of the dust removing, simultaneously solves the problems that the poor globality, large secondary investment, skinny and small spec, low efficiency of dust collecting and the most crucial point is not discharge with the standard of the similar devices. The utility model is applicable to the flour dust governing of cements, chemical engineering, metallurgy and electric power industries.

Description

Four mechanism dedusters

Affiliated technical field

The utility model relates to a kind of dust arrester that implementation purifies and dust reclaims to dusty gas, does not especially have four mechanism dedusters of the strict qualified discharge of secondary fly-up energy.

Background technology

At present, the known airborne dust that production process produced that is used for industries such as cement, chemical industry, metallurgy, electric power is administered used deduster and mainly contained four big classes: being used for just, the deduster of end has expansion chamber and rotoclone collector two big classes; The deduster that is used for terminal has sack cleaner and electric cleaner two big classes, does simple a proposition with regard to the sack cleaner and the existing not enough problem of electric cleaner that are used for terminal now;

The version of sack cleaner has several, and its operation principle is to catch dust by filter cloth, therefore, its efficiency of dust collection not necessarily is version and is the quality of filter cloth, the quality of filter cloth is good, and dust-collecting efficiency can reach 99%, but 99% is not equal to and reaches the permission discharge standard; The sack cleaner existing questions, the one, volume and floor space are big, and the 2nd, the many costs of use of cloth bag are higher, and main is that in case a cloth bag breakage is arranged, dust-collecting efficiency can sharply descend and tend to be zero.

Electric cleaner is divided into two kinds of little pole span and wide polar distances by pole span, by attitude discrete and horizontal two kinds are installed, be divided into rectangle and two kinds of circles by the electric field cross sectional shape, dividing by method has two kinds of dry method and wet types again, its operation principle mainly is to realize the purification and the dust of dusty gas are reclaimed by Electrostatic Absorption and gravitational settling, the vertical electric cleaner of cylindrical shape wide polar distance that present all trades and professions are used morely just exists, the one, because the end of operation principle and design feature, specification is little and few, be difficult to satisfy the environment that produces various Dust Capacities improvement, though this deduster version is more, general electric field sectional area is all at 5m ²Below; The 2nd, because the globality of equipment is poor, all be that supporting power supply is located at the deduster head simultaneously, the second investment that brings to the user is big, and the image after installing is extremely unbecoming, will take platform, awning etc. when installing as concentric circles electrostatic precipitator (as shown in Figure 7); Because original factory building formalized,, also to expose half aloft even be installed in indoorly; The 3rd, the most basic problem is, some dry powder fine powders are because resistivity is high-leveled and difficult with by Electrostatic Absorption the time, when dust-collecting and vibrating, the generation secondary fly-up is serious, and the top dust concentration of electric field increases, and is difficult to qualified discharge, adopt wet method, as water spray, spray steam, it is difficult again to reclaim dust, and the secondary fly-up during dust-collecting and vibrating still exists.

Summary of the invention

Big in order to overcome existing sack cleaner volume and floor space, high and the vertical electrostatic precipitator of cylindrical shape wide polar distance of cost of use, can not qualified discharge and globality poor, the second investment is big, specification is little and few, can not satisfy the deficiency of actual needs, the utility model provides a kind of four mechanism dedusters, and it can not only strict qualified discharge, and can satisfy when producing different Dust Capacity environmental improvement, the convenient installation reduced the second investment and cost of use.

The technical scheme that its technical problem that solves the utility model adopts is: this four mechanism deduster partly is made up of base portion, electric field part, gas cleaner part and blower fan; Base portion comprises that the circular cone twin-stage flashes valve, isolates awl, ash bucket, conduction seal, supporting power supply, cylinder of the base, distortion diffusion type rotoclone collector; Electric field partly comprises the corona wire lower lift ring, electric field cylindrical shell, anode rapping apparatus, dust collecting pole plate, corona wire, corona wire upper lift ring, high pressure resistant insulation suspension rod, insulating sleeve, cathode rapping device; Gas cleaner partly comprises the gas cleaner cylindrical shell, filter core, dust-collecting and vibrating device, discharge pipe; Blower fan partly comprises the birotor centrifugal fan, pipeline and butterfly valve, fan house, top cover, chimney, it is characterized in that: electric field partly is installed in the top of base portion, gas cleaner is installed between the cathode rapping device of electric field and electric field part, ash bucket is equipped with in the bottom of the cylinder of the base of base portion, is equipped with in the ash bucket to isolate awl, and the bottom is equipped with the circular cone twin-stage and is flashed valve, one side is equipped with the conduction seal, and being connected with supporting power supply, distortion diffusion type rotoclone collector is equipped with at the junction surface of cylinder of the base and ash bucket, and an amount of hole enlargement is arranged herein; In the electric field cylindrical shell of electric field part corona wire upper lift ring and corona wire lower lift ring are housed, connect by corona wire between the power-on and power-off hachure suspension ring, keep equidistant with dust collecting pole plate, the anode rapping apparatus is located at the outside, the cathode rapping device is contained in the top of gas cleaner cylindrical shell, with the high pressure resistant insulation suspension rod corona wire upper lift ring is connected, the high pressure resistant insulation suspension rod is isolated with insulating sleeve, passes from the center of gas cleaner with the bottom plate connecting of cathode rapping device and forms obturator; Establish filter core in the gas cleaner cylindrical shell, the bottom is provided with the dust-collecting and vibrating device, and top is provided with discharge pipe; In the fan house of blower fan part the birotor centrifugal fan is housed, pipeline and butterfly valve connect discharge pipe and birotor centrifugal fan, and fan house binds with top cover, and chimney penetrates in the air.The circular cone twin-stage flashes two circular cone inner barrels is housed in the valve, and the turnover panel leverage is equipped with in the bottom of circular cone inner barrel, and a circular cone ash-unloading hopper is equipped with in the bottom.The conduction seal is that a high density does not have end Porcelain Jar, does not have Porcelain Jar middle part, the end in high density one high density porcelain plate is housed, and be evenly equipped with 8-10 aperture at its excircle, and a high pressure resistant insulation sleeve pipe is housed at the center of high density porcelain plate.Be provided with dust collecting pole plate in the electric field cylindrical shell and connect and pass the gusset that shakes, the structure of electric field is to utilize pole span homalographic combinations such as dust collecting pole plate, needs according to different size, the branch that 7 lattice, 12 lattice and 19 lattice are arranged, dust collecting pole plate radially is on the basis that guarantees the laying dust area, except that the connection of necessity passes the gusset that shakes, vertically stay spacing, straight cutting on earth.The gas cleaner inner barrel is equipped with filter core, and top board is equipped with on the top of filter core, with the filter core group, needs according to different size divide into groups, the bottom of filter core is a card, leaves the gap with cylindrical shell, seals with sealing ring, interior circle separates with insulating sleeve, use seal ring seal, filter core group's integral body hangs with pendulum spring, and card is provided with 3-4 dust-collecting and vibrating device, be that motor is stretched out outside the cylindrical shell, the top of cylindrical shell is provided with discharge pipe.

The beneficial effects of the utility model are

1, owing to is provided with gas cleaner, the strict qualified discharge of energy.Because all more than 97-98%, the efficient of only requiring gas cleaner now is 90-95% to the dust-collecting efficiency of general electrostatic precipitator, total efficiency of dust collection of releasing this deduster by mathematical logic is 99.7-99.9%; Even the filter core breakage is arranged, the efficient of this deduster can not resemble sack cleaner more than 97% yet, can sharply descend, and more can not tend to be zero.

2, the bag filter cost of use is low relatively.Though the filter core of gas cleaner also is the material of filter cloth and so on, lack 3-5 doubly, because the relation that the dustiness of gas and wind speed are inversely proportional to add the design innovation of dedusting and flapping device and the few easy workout part of electrostatic precipitation part, so cost of use is very low.

3, because of good whole is arranged, make things convenient for the I﹠M maintenance, reduce user's the second investment.A given basis is having under the situation of crane, and is several or tens hours, just can finish whole project 95% in the main body installing engineering, utilize the height of deduster itself to reduce chimney consumption and other ancillary works, user's the second investment is few, the maintenance point is concentrated, convenient management.

4, overcome the little and few defective of close product specification.Utilize pole span homalographic such as dust collection plate in conjunction with being 7,12,19 lattice, enlarged specification limit the electric field lattice.

5, intake stack is made distortion diffusion type rotoclone collector and install gas cleaner additional, made this deduster collection cyclonic separation, Electrostatic Absorption, filter cloth filters, and four kinds of mechanism of gravitational settling are one, under limited space structure situation, improved efficiency of dust collection to greatest extent.

6, adopt the heavy caliber ash hole to flash valve and cooperate, utilize the idle space of ash bucket, reduced the installation height of foundation of equipment with the circular cone twin-stage.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples

Fig. 1 is the structural representation of first embodiment of the utility model.

Fig. 2 is the structural representation of second embodiment of the utility model.

Fig. 3 is the bipolar valve arrangement schematic diagram that flashes of circular cone.

Fig. 4 is a conduction seal profile.

Fig. 5 is the A-A sectional view that electric field structure is divided into 7,12,19 lattice.

Fig. 6 is the gas cleaner generalized section.

Fig. 7 is the outside drawing after the concentric circles electrostatic precipitator is installed.

Among the figure 1, the circular cone twin-stage flashes valve, 1a, the circular cone inner barrel, 1b, the circular cone ash-unloading hopper, 1c, the turnover panel leverage, 2, isolate awl, 3, ash bucket, 4, the conduction seal, 4a, the high density porcelain plate, 4b, the high pressure resistant insulation sleeve pipe, 5, supporting power supply, 6, cylinder of the base, 7, distortion diffusion type rotoclone collector, 8, the corona wire lower lift ring, 9, the electric field cylindrical shell, 10, the anode rapping apparatus, 11, dust collecting pole plate, 11a, connect and pass the gusset that shakes, 12, corona wire, 13, the corona wire upper lift ring, 14, the high pressure resistant insulation suspension rod, 15, insulating sleeve, 16, the cathode rapping device, 17, the gas cleaner cylindrical shell, 18, filter core, 18a, top board, 18b, card, 18c, sealing ring, 18d, sealing ring, 18e, pendulum spring, 19, the dust-collecting and vibrating device, 20, discharge pipe, 21, the birotor centrifugal fan, 22, pipeline and butterfly valve, 23, fan house, 24, top cover, 25, chimney.

The specific embodiment:

This four mechanism deduster partly is made up of base portion, electric field part, gas cleaner part and blower fan; Base portion comprises that the circular cone twin-stage flashes valve (1), isolates and bore (2), ash bucket (3), conduction seal (4), supporting power supply (5), cylinder of the base (6), distortion diffusion type rotoclone collector (7) composition; Electric field partly comprises: corona wire lower lift ring (8), electric field cylindrical shell (9), anode rapping apparatus (10), dust collecting pole plate (11), corona wire (12), corona wire upper lift ring (13), high pressure resistant insulation suspension rod (14), insulating sleeve (15), cathode rapping device (16) are formed; Gas cleaner partly comprises gas cleaner cylindrical shell (17), filter core (18), dust-collecting and vibrating device (19), discharge pipe (20) composition; Blower fan partly comprises birotor centrifugal fan (21), pipeline and butterfly valve (22), fan house (23), top cover (24), chimney (25) composition; Base portion: distortion diffusion type rotoclone collector (7) the inclination 45 of being made up of vane type spiral device and circular cone pipeline is arranged in the junction surface of cylinder of the base (6) and ash bucket (3), an amount of hole enlargement is arranged herein, supporting power supply (5) is arranged in cylinder of the base (6) one sides, conduct electricity from the electric field bottom with conduction seal (4), the bottom of ash bucket (3) is provided with and isolates awl (2), and the bottom is provided with the circular cone twin-stage and flashes valve (1); The circular cone twin-stage flashes establishes circular cone inner barrel (1a) in the valve (1), circular cone ash-unloading hopper (1b) is established in the bottom, establish turnover panel leverage (1c) in the bottom of circular cone inner barrel (1a), it has utilized the idle space of ash bucket, has reduced the installation height of foundation of equipment effectively; The conduction seal is that a high density does not have end Porcelain Jar, and the centre is provided with high density porcelain plate (4a), and 8-10 aperture at its circumference uniform distribution, is provided with a high pressure resistant insulation sleeve pipe (4b) in the middle of high density porcelain plate (4a); The electric field part is formed skeleton by electric field cylindrical shell (9), utilize dust collecting pole plate (11), needs according to different size, it is 7 in conjunction with lattice that employing waits the pole span homalographic, 12,19 lattice, electric field 19 lattice are big specification four mechanism dedusters, transportation for convenience, it is split into two halves, to on-the-spot assembling, corona wire (12) adopts the stainless steel prickle tubular, with corona wire upper lift ring (13) and lower lift ring (8) corona wire is formed closed static discharge source, guarantees the current/voltage balance of its each point, corona wire lower lift ring (8) is opened a V-notch between two corona wires (12), with guarantee with the normalized distance of the conical tube of distortion diffusion type rotoclone collector (7) from; The integral body of corona wire (12) is connected with cathode rapping device (16) with high pressure resistant insulation suspension rod (14); High pressure resistant insulation suspension rod (14) is isolated with insulating sleeve (15), and cathode rapping device (16) adopts the Bowden cable vibrator, and motor is stretched out outside the cylindrical shell; Anode rapping apparatus (10) is installed in the main flange or the dark flange place of electric field cylindrical shell (9), interior subsides δ 6mm steel plate.Establish filter core (18) in the gas cleaner cylindrical shell (17), the top of filter core is provided with top board (18a), the group is divided into several groups with filter core (18), the bottom of filter core (18) is provided with card (18b) and leaves the gap with gas cleaner cylindrical shell (17), seal with sealing ring (18c), inner ring separates with the insulating sleeve (15) of electric field part, seal with inner seal ring (18d), the filter core group is whole to be hung with pendulum spring (18e), card (18b) is provided with several dust-collecting and vibrating devices (19), motor is stretched out outside the gas cleaner cylindrical shell (17), and the top of gas cleaner cylindrical shell (17) is provided with discharge pipe (20), and the filter cloth of filter core (18) is preferably special.The birotor centrifugal fan (21) of blower fan part is installed in the fan house (23), the discharge pipe (20) and the birotor centrifugal fan (21) that connect gas cleaner with pipeline and butterfly valve (22), fan house (23) is bound by top cover (24), and chimney (25) passes in the air.

In the embodiment shown in fig. 1, electric field partly is installed on the base portion, and gas cleaner partly is installed between the cathode rapping device (16) of electric field and electric field part, and blower fan partly is installed on the cathode rapping device (16) of electric field part.

In another embodiment shown in Figure 2, the cathode rapping device (16) of electric field part is bound by top cover (24), fan house (23) and birotor centrifugal fan (21) are established it in addition and are located, and with pipeline and butterfly valve (22) discharge pipe (20) are connected with birotor centrifugal fan (21).

Operation principle: dusty gas enters the distortion diffusion type rotoclone collector (7) that angle at 45 is arranged under the swabbing action of blower fan, rotation produces kinetic energy at a high speed under the effect of helical blade, dusty gas is rotated at a high speed downwards along the conical tube axis produce centrifugal force, thicker dust granules is separated, again under the effect of wind-force to the friction of tube wall and gravity, take pipeline out of, fall in the ash bucket (3); Separate the initial concentration that has reduced dusty gas effectively this first time; At a high speed the gas of rotation loses the supporting of tube wall at the conical tube road junction then, expands suddenly, make radially wind speed and axially wind speed sharply reduce, produce the zero-speed interface, in air-flow circles round steering procedure, further thicker dust separation is come out for the second time; Fall in the ash bucket (3); Reduced the gas of dust content by secondary separation, become certain camber line to rise at a slow speed in hole enlargement place and enter electric field, under the effect of high-pressure electrostatic, dust is attracted on corona wire (12) and the dust collecting pole plate (11), through dust-collecting and vibrating, dust falls into ash bucket (3), flashes valve (1) by the circular cone twin-stage and discharges; Being purified to the dust-laden total amount has only the gas of 1-3% to enter gas cleaner filter core (18), do not tackled at last, make filter core (18) make dust return to electric field do vertical vibration through dust-collecting and vibrating device (19) vibration card (18b) by the low amounts of dust of electric field adsorption cleaning.

In addition, supporting power supply (5) is arranged on the basic platform of deduster, apart from the about 1500mm of cylinder of the base (6) place, conduct electricity from the electric field bottom with conduction seal (4), lay the conduction seal (4) locate, in cylinder of the base (6), make depression φ 1000 * 300mm shape, make the dusty gas of rising and the dust of whereabouts be difficult for contacting with Porcelain Jar, utilize the condition of deduster negative-pressure operation simultaneously, from the uniform aperture of high density porcelain plate (4a) circumferencial direction of conduction seal (4), suck micro-clean air, cross with the dusty gas in the cylindrical shell, the Porcelain Jar inner chamber is kept clean, the good insulation performance condition is arranged to reach.

Claims

1, a kind of four mechanism dedusters partly are made up of base portion, electric field part, gas cleaner part and blower fan; Base portion comprises that the circular cone twin-stage flashes valve, isolates awl, ash bucket, conduction seal, supporting power supply, cylinder of the base, distortion diffusion type rotoclone collector; Electric field partly comprises the corona wire lower lift ring, electric field cylindrical shell, anode rapping apparatus, dust collecting pole plate, corona wire, corona wire upper lift ring, high pressure resistant insulation suspension rod, insulating sleeve, cathode rapping device; Gas cleaner partly comprises the gas cleaner cylindrical shell, filter core, dust-collecting and vibrating device, discharge pipe; Blower fan partly comprises the birotor centrifugal fan, pipeline and butterfly valve, fan house, top cover, chimney, it is characterized in that: electric field partly is installed in the top of base portion, gas cleaner is installed between the cathode rapping device of electric field and electric field part, ash bucket is equipped with in the bottom of the cylinder of the base of base portion, is equipped with in the ash bucket to isolate awl, and the bottom is equipped with the circular cone twin-stage and is flashed valve, one side is equipped with the conduction seal, and being connected with supporting power supply, distortion diffusion type rotoclone collector is equipped with at the junction surface of cylinder of the base and ash bucket, and an amount of hole enlargement is arranged herein; In the electric field cylindrical shell of electric field part corona wire upper lift ring and corona wire lower lift ring are housed, connect by corona wire between the power-on and power-off hachure suspension ring, keep equidistant with dust collecting pole plate, the anode rapping apparatus is located at the outside, the cathode rapping device is contained in the top of gas cleaner cylindrical shell, with the high pressure resistant insulation suspension rod corona wire upper lift ring is connected, the high pressure resistant insulation suspension rod is isolated with insulating sleeve, passes from the center of gas cleaner with the bottom plate connecting of cathode rapping device and forms obturator; Establish filter core in the gas cleaner cylindrical shell, the bottom is provided with the dust-collecting and vibrating device, and top is provided with discharge pipe; In the fan house of blower fan part the birotor centrifugal fan is housed, pipeline and butterfly valve connect discharge pipe and birotor centrifugal fan, and fan house binds with top cover, and chimney penetrates in the air.

2, four mechanism dedusters according to claim 1 is characterized in that: the circular cone twin-stage flashes two circular cone inner barrels is housed in the valve, and the turnover panel leverage is equipped with in the bottom of circular cone inner barrel, and a circular cone ash-unloading hopper is equipped with in the bottom.

3, four mechanism dedusters according to claim 1, it is characterized in that: the conduction seal is that a high density does not have end Porcelain Jar, do not have Porcelain Jar middle part, the end in high density one high density porcelain plate is housed, and be evenly equipped with 8-10 aperture at its excircle, a high pressure resistant insulation sleeve pipe is housed at the center of high density porcelain plate.

4, four mechanism dedusters according to claim 1, it is characterized in that: be provided with dust collecting pole plate in the electric field cylindrical shell and pass the gusset that shakes with connecting, the structure of electric field is to utilize pole span homalographic combinations such as dust collecting pole plate, according to the needs of different size, the branch of 7 lattice, 12 lattice and 19 lattice is arranged, radially dust collecting pole plate, be on the basis that guarantees the laying dust area, except that the connection of necessity passes the gusset that shakes, vertically stay spacing, straight cutting is on earth.

5, four mechanism dedusters according to claim 1, it is characterized in that: the gas cleaner inner barrel is equipped with filter core, and top board is equipped with on the top of filter core, with the filter core group, to divide into groups according to the needs of different size, the bottom of filter core is a card, leave the gap with cylindrical shell, with the sealing ring sealing, interior circle separates with insulating sleeve, uses seal ring seal, filter core group's integral body hangs with pendulum spring, card is provided with the dust-collecting and vibrating device, is motor is stretched out outside the cylindrical shell, and the top of cylindrical shell is provided with discharge pipe.