CN2103090U

CN2103090U - Wet dust remover

Info

Publication number: CN2103090U
Application number: CN 90219127
Authority: CN
Inventors: 张延民
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-04
Filing date: 1990-10-04
Publication date: 1992-04-29

Abstract

The utility model discloses a wet dust remover. A switching device contained with dust exhaust gas is formed by a butterfly valve and the gap of a chimney, a spray dust-removing device contained with dust exhaust gas is formed by a dust removal box body and a spray head, and a trapping and collecting device contained with dust liquid drop is formed by louver panels, an upper supporting seat, a lower supporting seat, a wash tub pipe and a clean water valve. The three devices comprise two-stage division, the dust removal efficiency reaches to 97 per cent, and the dust content of the discharging exhaust gas is 200 mg/cubic meter. The wet dust remover is suitable for removing the exhaust gas whose dust concentration below 20 grams/cubic meter and big grain diameter of the powder dust; the utility model can remove the flue gas in vertical cement kilns, etc.

Description

Wet dust remover

The non-resistance hydrofilter is a kind of equipment that is used to purify dust-laden exhaust gas.

In existing wet dedusting technology, contrary spray, wrong spray are arranged, say that the argumentation of shutter board dewater unit is also arranged, " dust-precipitator " book (Chinese architecture publishing house of writing of Ji Jing literary composition for example along spray, in April, 1981 publication) in introduction is just arranged, but never have non-resistance deduster simple in structure.In existing deduster, the resistance of gas all surpasses tens of millimeters of water, must use blower fan and pipeline in whole dust-removal system, and its structure is all complicated, thereby investment is big, the engineering time is long, floor space is big.The application number of submitting on November 19th, 1988 is 88109701, name is called the application of " the flue gas of vertical cement kiln wet method is filtered the technology of gathering dust along the spray adverse current ", this technology dust removal efficiency can reach 92-96%, in containing the waste water of solid particle, and annual recyclable tens0000 yuan cement raw material.But because of the acquisition means of pouncing on of the switching device shifter that do not design dusty gas and dust-laden drop, dusty gas can not switch fully during maintenance, and water reclaims fully during use, and carries a spot of particulate secretly enter atmosphere under spray pattern.

The purpose of this utility model is that the equipment in former " the flue gas of vertical cement kiln wet method is filtered the technology of gathering dust along the spray adverse current " is improved, and for the ease of using, keeping in repair, has designed the switching device shifter of the dusty gas of forming with butterfly valve, slide valve.Because of dusty gas behind spray chamber, also have the dust-laden drop of minute quantity to be the vaporific atmosphere that enters, be the yield that further improves water, particulate material reduces the dustiness of discharging waste gas, has designed the acquisition means of pouncing on based on shutter board.

The non-resistance hydrofilter is made up of three parts, i.e. the switching device shifter of dust-laden exhaust gas, spraying dedusting device and dust-laden drop pounce on acquisition means.

Description of drawings:

Fig. 1: Fig. 1 is the switching device shifter of dust-laden exhaust gas, and spraying dedusting device, drop are pounced on the installation site and the process chart of acquisition means.The title of sequence number is among the figure: 1, water fender, 2, the valve of talking endlessly, 3, chimney, 4, delivery port, 5, flexible pipe, 6, crank, 7, rotating cylinder, 8, flashboard, 9, steel wire rope, 10, pulley, 11, shower nozzle, 12, dust-removing box, 13, shutter board, 14, wash tub pipe, 22, bar-shaped trough, 30, wash tub pipe gripper shoe, hypotenuse at the bottom of A boss, the B casing, hypotenuse on the D casing.

Fig. 2: Fig. 2 pounces on acquisition means arrangement figure, and the title of sequence number is among the figure: 12, dust-removing box.13, shutter board.14, wash tub pipe.15, purge valve.18, undersetting, angle bar 21.27,29, upper bracket, 30 wash tub pipe gripper shoes.Because of can't clearly reacting the detailed structure of pouncing on acquisition means to Fig. 2, in order clearly to express concrete structure, this figure has made the view of three directions, i.e. B-B cutaway view (see figure 3) C-C cutaway view (see figure 4) and A vertical view (see figure 5).

Fig. 3: Fig. 3 is the cutaway view of Fig. 2 B-B direction, and the title of sequence number is among the figure: 13 shutter boards, 16 π shape cards, 17V shape card, 18 undersettings, 28V shape card, 31 π shape cards.

Fig. 4: Fig. 4 is the cutaway view of Fig. 2 C-C direction, and the title of sequence number is among the figure: 13 shutter boards, 14 wash tub pipes, 16 π shape cards, 17V shape card, 18 undersettings, 19 band irons.20, L shaped card.21, angle bar.23, L shaped card.24, π shape card.25, V-arrangement card.26, π shape card.27, angle bar.28, V-arrangement card.29, upper bracket.30, wash tub pipe gripper shoe.31, π shape card.The C1 open slot.

Fig. 5: Fig. 5 be Fig. 2 A to vertical view, the numbering of sequence number is among the figure: 13, shutter board.14, wash tub pipe.15, purge valve.23, L shaped card.29, upper bracket.30, wash tub pipe gripper shoe, because of shutter board 13 is packed into through stamping out rectangular groove from upper bracket 29, the shape after the rectangular groove after the punching press can't be expressed punching press fully, this figure has made D-D broken section (see figure 6).

Fig. 6: Fig. 6 is the partial sectional view of Fig. 5 D-D, and the title of sequence number is among the figure: 13 shutter boards, and 23 is two L shaped cards, 29, upper bracket.

Fig. 7: Fig. 7 is among Fig. 4 above the angle bar 27, π shape card welding position, welding direction figure, and the title of sequence number is among the figure: 24, π shape card.27, angle bar.The K1 connecting hole.

Fig. 8: Fig. 8 be Fig. 7 G to view, the same Fig. 7 of the title of sequence number.

Fig. 9: Fig. 9 is angle bar 21 top π shape card welding positions, welding direction figure among Fig. 4, and the title of sequence number is among the figure: 21, angle bar.26, π shape card.The K2 connecting hole.

Figure 10: Figure 10 be Fig. 9 D to view, the same Fig. 9 of the title of sequence number.

Figure 11: Figure 11 is L shaped card 20, V card 25 welding position, the soldering angle detail drawing on band iron 19 among Fig. 4, in order to express clearly, has drawn the vertical view of Figure 11, i.e. Figure 12.The title of sequence number is among the figure: 20L shape card, and 25V shape card, 19 band irons, K3 are connecting hole.

Structure according to dust collecting process and parts thereof is described below below: first is the switching device shifter of dust-laden exhaust gas, by butterfly valve 2, chimney 3, crank 6, rotating cylinder 7, slide valve 8, steel wire rope 9, pulley 10, form.At first the side with former chimney 3 upper ends excavates (or reserving) breach F, breach is square, its size should be identical with the section of the junction of dust-removing box 12, butterfly valve 2 is installed in the former flue, dust-removing box 12 is processing a bar-shaped trough 22 as the passway of putting into slide valve 8 near the upper side with the junction of chimney, for the ease of opening and closing gate valve 8, design has pulley 10, steel wire rope 9, rotating cylinder 7, crank 6.Rotate crank 6 during use,, affect slide valve 8 that valve 8 is opened and closed by steel wire rope 9, pulley 10.During dedusting, when mentioning slide valve, also should close butterfly valve 2, make dust-laden exhaust gas carry out spraying and dedusting by the inner chamber (spraying and dedusting chamber) that breach F enters dust-removing box 12.The dust arrester that second portion is made up of water fender 1, flexible pipe 5, shower nozzle 11, dust-removing box 12.Water fender 1(sees figure one) be welded on dust-removing box 12 around.Purpose is that dust-laden waste water is retained down, and prevents that dust-laden waste water from flowing into chimney along the interior inclined-plane of dust-removing box.Flexible pipe 5 select for use plastic tube or rubber tube all can, selecting the flexible pipe purpose of connecting for use is to be easy for installation and maintenance.Shower nozzle 11(sees figure one) be the critical piece of deduster, the size of injection diameter directly influences dust removing effects, and the excessive fogging degree in aperture is poor, and drop can not fully contact with the dust-laden particle.Though the too small atomizing effect in aperture is good, stops up spray orifice easily, suitable aperture is the 3-8 millimeter.Dust-removing box 12 is installed on the breach of chimney 3 sides (seeing figure one).The groove 22(that the upper side of casing 12 processes a strip sees figure one), be advisable can put into flashboard 8.The bottom side of casing 12 processes a Sewage outlet 4.The end hypotenuse B of casing 12 should exceed end hypotenuse B(at the boss A by chimney and see figure one), prevent that dust-laden waste water from flowing into flue.The square trapezium structure of dust-removing box 12 for being tilted to, begin to increase (seeing figure one) gradually from chimney breach F to shutter board 13 sectional areas, the increase gradually of sectional area in the dust-removing box, the angle of inclination of depending on dust-removing box ramp and following hypotenuse, be advisable at 30-35 ° in the angle of inclination of last hypotenuse (D limit), be advisable at 25-30 ° in the angle of inclination of end hypotenuse (B limit), make the flow velocity of dust-laden exhaust gas in casing drop to the 2-3 meter per second, gradient is big more, sectional area also increases gradually, and its local resistance loss is also more little.Third part is by shutter board 13 wash tub pipes 14 lower end π shape cards 16.31, V-arrangement card 17.28; Middle part π shape card 24.26, V-arrangement card 25, L shaped card 20; The L shaped card 23 in upper end, undersetting 18, angle bar 21.27, band iron 19, upper bracket 29, wash tub pipe gripper shoe 30 constitutes the acquisition means of pouncing on of dust-laden drop.Do to describe in detail below in conjunction with accompanying drawing: Fig. 2 is an installation diagram of pouncing on acquisition means, and the title of sequence number is respectively among the figure, 12 dust-removing boxs, 13 shutter boards, 14 cleaning hoses, 15 purge valves, 18 undersettings, 21.27 angle bar, 29 upper brackets, 30 gripper shoes.For the structure and the installation site of clearly expressing each parts, Fig. 2 has made the cutaway view of both direction, promptly the B-B cutaway view (see Fig. 2, Fig. 3), the C-C cutaway view (see Fig. 2, Fig. 4) and A to vertical view (seeing Fig. 2 Fig. 5).B-B cutaway view (see figure 3), it has clearly represented pounces on each position component of acquisition means lower end.The lower end design of pouncing on acquisition means has a metallic plate to make undersetting 18, is welded with π shape card 16.31 on the plate face of undersetting, V-arrangement card 17.28.Each piece shutter board is undertaken the lower end of shutter board 13 spacing by a π shape card and a V-arrangement card.Each group shutter board all should oblique arrangement, and the incline direction of shutter board on the same group should be consistent, and the shutter board of adjacent set should be arranged (see figure 3) with opposite direction.For clear the expression pounced on acquisition means middle part and each position component of top, structure, drawn C-C cutaway view (see figure 4), the title of sequence number is among the figure: 13 shutter boards, 14 cleaning hoses, 16 π shape cards, 17V shape card, 18 undersettings, 19 band irons, 20L shape card, 21 angle bar, 24 π shape cards, 25V shape card, 26V shape card, 27 angle bar, 28V shape card, 29 upper brackets, 30 water pipe gripper shoes, 31 π shape cards.In order to increase the intensity of shutter board, prevent from use to be out of shape, π shape card 24.26, V-arrangement card 25, the middle part reinforcing mechanisms that L shaped card 20 and band iron 19 are formed are arranged by angle bar 21.27 in the design of the middle part of shutter board.π shape card 24 openings are welded on the hand hay cutter face of angle bar 27 at a slant to the upper right side, and the design of the two ends of angle bar 27 has connecting hole K1(to see Fig. 7 Fig. 8), Fig. 8 is that Fig. 7 G is to view; V-arrangement card 25, L shaped card 20 are welded on two sides of band iron 19, i.e. a face down bonding V-arrangement card, the L shaped card of another face down bonding, the two ends design of band iron has connecting hole K3(to see Figure 11, Figure 12), Figure 11 is that the front view behind the L shaped card, Figure 12 are the vertical views of Figure 11 through welding V-arrangement card; π shape card 26 openings are welded on the side of angle bar 21 at a slant to the upper left side, and the two ends of angle bar 21 designs has connecting hole K2(to see Fig. 9 Figure 10), Figure 10 is that the D of Fig. 9 is to view.In order to express the superstructure of pouncing on acquisition means, wash tub pipe 14, shutter board 13, the installation site of wash tub pipe gripper shoe 30, the A that has drawn Fig. 2 is to view Fig. 5, and the title of sequence number is among Fig. 5: 13 shutter boards, 14 wash tub pipes, 15 purge valves, 23L shape card, 29 upper brackets, 30 wash tub pipe gripper shoes.Cleaning hose 14 is drilled with hole for water spraying in the one side of the direction that faces toward shutter board 13.Upper bracket is the square metallic plate of a block length, spacing card (the π shape card of corresponding undersetting 18 shutter boards 13 in the centre position of plate face, the V-arrangement card) position (see figure 3) stamps out the rectangular groove (seeing Fig. 5 Fig. 6) that can put into shutter board 13 downwards by the section configuration (see figure 5) of shutter board 13, and the symmetrical L shaped card 23(of formation that two of collapses down limits and metallic plate connect together after the punching press sees Fig. 6).The two ends design of upper bracket 29 has the metal profile 30 of two wash tub pipes 14, in order to put into cleaning hose 14, the open slot C1(that gripper shoe 30 designs have one group of opening to make progress sees Fig. 4), gripper shoe 30 is vertically welded in the two ends of upper bracket 29, is combined into one with upper bracket 29.

Technological requirement, dust removal process and effect: the dust-laden exhaust gas in the chimney is through butterfly valve, and slide valve enters the dust-removing box spray chamber after switching, and the kinetic energy that sprays liquid with shower nozzle puts on gas, offset the gas local resistance that deduster produced of flowing through, accomplish the non-resistance dedusting.It is little that the coefficient of partial resistance of deduster will be tried one's best, with gas flow rate 2-3 meter per second, the liquid spouting velocity is advisable greater than 4 meter per seconds, and total coefficient of partial resistance is being good less than 5, WGR should be determined shower nozzle quantity and water pump according to actual conditions between 0.3-0.6 liter/cubic meter.The installed inside of the corner of dust-removing box by by shutter board be main form pounce on acquisition means, be used for pouncing on once more that liquid collecting is dripped and dust, wash tub pipe is equipped with at top at shutter board, make the shutter board surface form water membrane, help pouncing on collection dust drop, simultaneously the flushable dust that sticks on the shutter board.Dust-laden exhaust gas is through spray, and after shutter board was pounced on the dedusting of collection two-stage, dust emission concentration can drop to 200 millimeters/cubic metre, and dust removal efficiency reaches 97%, reaches the discharge standard in national two class areas.The non-resistance hydrofilter is simple in structure, makes easily, and general factory can oneself make, and easy construction, small investment, instant effect.This deduster is applicable to that dust content is lower than 20 gram/cubic meters, and the waste gas dedusting that dust size is big is as dedusting of flue gas of vertical cement kiln etc.

Claims

1, a kind of non-resistance hydrofilter, it is made of the switching device shifter of dust-laden exhaust gas chimney (3), butterfly valve (8), crank (6), rotating cylinder (7), steel wire rope (9), pulley (10), chimney breach F; By dust-removing box (12), Sewage outlet (4), strip groove (22), shelves water plate (1), flexible pipe (5), shower nozzle (11) is formed the spraying dedusting device of dust-laden exhaust gas; By shutter board (13), upper bracket (29), undersetting (18), wash tub pipe (14), wash tub pipe gripper shoe (30), angle bar (21), angle bar (27), band iron (19), π shape card (16), π shape card (24), π shape card (26), π shape card (31), V-arrangement card (17), V-arrangement card (25), V-arrangement card (28), L shaped card (20), the dust-laden drop that L shaped card (23) is formed pounce on acquisition means, it is characterized in that designing in the chimney butterfly valve (2) that changeable dust-laden exhaust gas is arranged, the upper side of dust-removing box (12), junction near chimney processes a bar-shaped trough (22), put into the slide valve (8) of changeable dust-laden exhaust gas in the bar-shaped trough, pouncing on the acquisition means design has undersetting (18), upper bracket (29), the middle part design of shutter board (13) has strengthening part angle bar (21), angle bar (27), band iron (19).

2, slide valve according to claim 1 (8) is characterized in that the mechanism for opening/closing that slide valve (8) also designs the slide valve of being made up of crank (6), rotating cylinder (7), steel wire rope (9) (8).

3, its feature of undersetting according to claim 1 (18) is that also undersetting (18) is welded with the spacing π shape card and the V-arrangement card of shutter board (13).

4, the design of the middle part of shutter board according to claim 1 (13) has strengthening part angle bar (21), angle bar (27), band iron (19), its feature is that also the side of angle bar (21) is welded with the π shape spacing card (26) of opening to the shutter board (13) of the inclination on upper left side, and the two ends of angle bar (21) are drilled with connecting hole K2; The side of angle bar (27) is welded with the π shape spacing card (24) of opening to the shutter board (13) of the inclination in upper right side; The two ends of angle bar (27) are drilled with connecting hole K1; The two sides of band iron (19) are welded with the spacing card of V-arrangement (25), the L shaped spacing card (20) of shutter board (13) respectively, and the two ends of band iron (19) are drilled with connecting hole K3.

5, its feature of upper bracket according to claim 1 (29) is that also the two ends of upper bracket (29) are welded with the metal profile (30) of one group of wash tub pipe put into that opening makes progress (14).

6, according to claim 1 and the described upper bracket of claim 5, its feature is that also bearing (29) also designs the section configuration that has by shutter board (13) and stamps out the rectangular groove that can put into shutter board (13) downwards, two limits under subsiding after the punching press and metallic plate connect together, symmetrical L shaped spacing card (23).