CN218058517U - Desulfurization wastewater treatment device - Google Patents

Abstract

The utility model provides a desulfurization effluent treatment plant, including high temperature flue, atomizer and row's ash subassembly, the atomizer slope sets up the flue gas air inlet of high temperature flue for spout into desulfurization waste water the high temperature flue carries out evaporation treatment, arrange the ash subassembly set up in inside the high temperature flue, be used for the deposition discharge that produces after will evaporating. The utility model discloses a desulfurization effluent treatment plant aims at reinforcing gas-liquid contact for the evaporation rate of waste liquid droplet in high temperature flue, avoids the high temperature flue inner wall to form the scale deposit simultaneously and blocks up high temperature flue, increases the sectional area that the gas in the high temperature flue flows, improves evaporation efficiency.

Description

Desulfurization wastewater treatment device

Technical Field

The utility model relates to a sewage treatment technical field particularly, relates to a desulfurization effluent treatment plant.

Background

In recent years, with the improvement of environmental requirements, industrial desulfurization wastewater can be discharged or recycled after being treated generally, and the current mode for treating desulfurization wastewater is to arrange a sprayer in a high-temperature flue, wherein the sprayer sprays the desulfurization wastewater into the high-temperature flue so that the desulfurization wastewater is contacted with high-temperature flue gas and is evaporated under the action of the waste heat of the high-temperature flue gas. Calcium and magnesium ions in the desulfurization wastewater form deposited ash to be deposited on the inner wall of the high-temperature flue, so that the flow sectional area of the high-temperature flue gas is reduced, the flow velocity is increased, the contact time of the desulfurization wastewater and the high-temperature flue gas is shortened, and the evaporation efficiency of the desulfurization wastewater is reduced.

The existing sprayer sprays desulfurization wastewater along flue gas, and the arrangement mode accelerates the flow speed of wastewater fog drops in a flue, so that the fog drops cannot be completely evaporated in the flue and subsequent equipment is damaged.

In view of this, the utility model discloses it is special.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a desulfurization effluent treatment plant aims at reinforcing gas-liquid contact for the evaporation rate of waste liquid droplet in high temperature flue, avoids high temperature flue inner wall to form the scale deposit simultaneously and blocks up high temperature flue, increases the sectional area that the gas in the high temperature flue flows, improves evaporation efficiency.

The utility model provides a desulfurization effluent treatment plant, including high temperature flue, atomizer and row's ash subassembly, the atomizer slope sets up the flue gas air inlet of high temperature flue for spout into desulfurization waste water the high temperature flue carries out evaporation treatment, arrange the ash subassembly set up in inside the high temperature flue, be used for the deposition discharge that produces after will evaporating.

Through setting up the atomizer slope at the flue gas air inlet of high temperature flue, can be that the initial velocity direction of the waste liquid of atomizer spun is the waste liquid droplet of contrary miscut, will reverse flow a period, under the condition that need not increase high temperature flue length, the flow velocity of extension waste liquid droplet in high temperature flue makes the waste liquid droplet can evaporate completely and can not cause the liquid droplet to condense.

Through arranging the ash discharge assembly inside the high-temperature flue, the device for treating the desulfurization wastewater can prevent the accumulated ash from forming scale on the inner wall of the high-temperature flue to block the high-temperature flue when working for a long time, and can prevent the sectional area of the high-temperature flue from being reduced due to the existence of a large amount of scale, thereby ensuring the evaporation efficiency of the desulfurization wastewater.

Furthermore, the included angle between the inclination direction of the sprayer and the axial direction of the high-temperature flue is 20-60 degrees.

Further, above-mentioned atomizer includes L type inlet tube, air inlet switch, spouts chamber and nozzle, the nozzle with the one end in spouting the chamber is connected and is set up inside the high temperature flue, air inlet switch sets up on the L type inlet tube, L type inlet tube with spout the chamber other end and can dismantle the connection.

Furthermore, an anti-abrasion cover is wrapped on the periphery of the nozzle and connected with the inner wall of the high-temperature flue.

Specifically, the L-shaped water inlet pipe is connected with the spray cavity through a flange, and a gasket is arranged between the flanges.

Through at the peripheral abrasionproof cover of parcel of nozzle, can prevent that the solid particle in the flue gas from continuously erodeing the atomizer nozzle and causing the destruction, prolong the life of nozzle. The L-shaped water inlet pipe is flexibly connected, installed and disassembled through the flange, the connection tightness can be improved through the gasket, uneven positions on the sealing surface are filled, and the L-shaped water inlet pipe is tightly connected with the spray cavity without leakage.

Furthermore, the inner wall of the high-temperature flue is sequentially provided with a flue wallboard and a flue heat-insulating layer from inside to outside.

Furthermore, the sprayers are arranged on the flue wall plates on two sides of the high-temperature flue in a crossed mode, and the sprayers are connected with the flue wall plates through threads so as to be used for fully utilizing the space of the high-temperature flue and further improve the mixing degree of waste liquid fog drops and flue gas.

Through setting up a plurality of atomizers alternately in high temperature flue both sides, prevent that the overlapping of the waste liquid droplet that the atomizer sprays from appearing and condense, improve the degree of mixing of waste liquid droplet and flue gas.

Further, the sprayer is a two-fluid sprayer, and the atomization angle of the two-fluid sprayer is less than 30 degrees.

Furthermore, the ash discharge assembly comprises a support rod, a rotating shaft and a fixing support, a scraper used for removing scales on the inner wall of the high-temperature flue is arranged at the end of the support rod, the fixing support is fixedly arranged on the inner wall of the high-temperature flue and used for supporting the rotating shaft, and the support rod is welded on the rotating shaft in a staggered manner.

Specifically, the shape of the flight may be rectangular or spiral.

Furthermore, the high-temperature flue comprises an upper flue and a lower flue, the cross section of the upper flue is square, and the cross section of the lower flue is semicircular.

The cross section of the lower flue of the high-temperature flue is set to be semicircular, so that the scraper can be well attached to the inner wall of the flue, and scaling on the inner wall of the flue can be well removed.

Furthermore, the high-temperature flue is arranged at one end far away from the flue gas inlet in a downward inclined mode, and the included angle between the inclined plane and the horizontal plane is not more than 10 degrees.

The high-temperature flue is obliquely arranged, so that the deposited dust at the bottom in the high-temperature flue can automatically slide into a dust remover which is connected with the high-temperature flue in succession, and the phenomenon of blocking cannot be caused.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a desulfurization wastewater treatment device, through set up the atomizer in the high temperature flue slope, can make the initial speed direction of waste liquid that the atomizer sprays be the oblique fog drop of contrary, will flow one end time backward, lengthen the flow time of the waste liquid fog drop in the high temperature flue under the condition that does not need to increase the high temperature flue length, make the waste liquid fog drop evaporate completely; and does not cause the droplets to coagulate; and through set up the ash removal subassembly in high temperature flue inside, prevent that this desulfurization waste water treatment facilities from working for a long time, the deposition forms the scale deposit and blocks up high temperature flue at high temperature flue inner wall, prevents that high temperature flue from reducing owing to there is a large amount of scales deposits and the sectional area to guarantee desulfurization waste water's evaporation efficiency. In addition, the desulfurization wastewater purifying device has the advantages of small investment, simple operation, convenient installation and simple and convenient treatment.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic view of a desulfurization wastewater treatment apparatus provided in an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a high-temperature flue provided by an embodiment of the present invention;

fig. 3 is a schematic diagram of an arrangement of sprayers according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a sprayer provided by the embodiment of the present invention.

Reference numerals are as follows:

1-high temperature flue; 2, spraying a sprayer; 3-ash discharge assembly; 4-L type water inlet pipe; 5-air inlet switch; 6-spraying the cavity; 7-a nozzle; 8-an anti-abrasion cover; 101-flue side wall; 102-an insulating layer; 201-a flange; 202-a gasket; 301-support bars; 302-a rotation axis; 303-a fixed support; 304-a squeegee.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The utility model discloses desulfurization effluent treatment plant, refer to fig. 1 and show, set up between boiler and desulfurizing tower, including high temperature flue 1, atomizer 2 and row's ash subassembly 3, the slope of atomizer 2 sets up the flue gas air inlet at high temperature flue 1 for carry out evaporation treatment in spouting high temperature flue 1 with desulfurization waste water, row's ash subassembly 3 sets up inside high temperature flue 1, is used for the deposition that produces after will evaporating to discharge. Specifically, a plurality of atomizers 2 are arranged on two sides of the high-temperature flue 1 in a crossed manner, so that waste liquid fog drops sprayed by the atomizers 2 are prevented from being overlapped and condensed, and the mixing degree of the waste liquid fog drops and flue gas is improved. Through arranging ash discharge assembly 3 inside high temperature flue 1, prevent this desulfurization waste water treatment plant during long-term operation, the deposition forms the scale deposit at high temperature flue 1 inner wall and blocks up high temperature flue 1, prevents that high temperature flue 1 from reducing owing to there is a large amount of scales deposits and the sectional area to guarantee desulfurization waste water's evaporation efficiency.

The included angle between the inclined direction of the sprayer 2 and the axial direction of the high-temperature flue 1 is 20-60 degrees, the inclined direction of the sprayer 2 is set to be 20-60 degrees with the axial direction of the high-temperature flue 1, so that gas-liquid contact can be enhanced, the evaporation speed of waste liquid fog drops sprayed by the sprayer 2 is increased, and liquid drops cannot be condensed; the initial speed direction of the waste liquid sprayed by the sprayer 2 is reversely oblique fog drops, the waste liquid flows for a period of time in the reverse direction, and the flowing time of the waste liquid fog drops in the high-temperature flue 1 is prolonged under the condition that the length of the high-temperature flue 1 is not required to be increased, so that the waste liquid fog drops can be completely evaporated. The included angle between the inclination direction of the sprayer 2 and the axial direction of the high-temperature flue 1 can be 30 degrees, 45 degrees and the like.

Meanwhile, the sprayers 2 are arranged at the inlet of the high-temperature flue 1 along the axial direction of the flue, the sprayers 2 penetrate into the high-temperature flue 1 in different lengths, waste liquid fog drops sprayed by the sprayers 2 can be collected at all positions of the high-temperature flue 1 through the kettle cover, the fog drops sprayed by the sprayers 2 in the high-temperature flue 1 are prevented from being overlapped and condensed, the space of the high-temperature flue 1 can be fully utilized, and the mixing degree of the fog drops and flue gas is improved. The sprayers 2 arranged in the upper flue and the sprayers 2 arranged in the lower flue are arranged in a crossed mode, and overlapping condensation of fog drops sprayed by the sprayers 2 in the high-temperature flue 1 is prevented.

Specifically, atomizer 2 is the double-fluid sprayer, and the atomizing angle of double-fluid sprayer is less than 30, can avoid when the atomizing angle is too big, and the desulfurization waste water spouts the flue inner wall and causes the corruption, can also avoid adjacent atomizer spun desulfurization waste water coincidence, guarantees desulfurization waste water's atomization effect.

Above-mentioned atomizer 2 includes L type inlet tube 4, admit air switch 5, spout chamber 6 and nozzle 7, nozzle 7 is connected and sets up inside high temperature flue 1 with the one end that spouts chamber 6, admit air switch 5 sets up on L type inlet tube 4, L type inlet tube 4 can be dismantled with spouting chamber 6 and be connected, the peripheral parcel of nozzle 7 is provided with abrasionproof cover 8, abrasionproof cover 8 and 1 interior wall connection of high temperature flue, through at 7 peripheral parcel abrasionproof covers 8 of nozzle, can prevent that the solid particle in the flue gas from continuously erodeing 2 nozzles of atomizer and causing the destruction, extension nozzle 7's life. Specifically, the L-shaped water inlet pipe 4 is connected with the spraying cavity 5 through the flange 201, the gasket 202 is arranged between the flanges 201, the flanges 201 are connected, installed and disassembled flexibly, the sealing performance of connection can be improved through the gasket 201, unevenness on a sealing surface is filled, and the L-shaped water inlet pipe 4 is tightly connected with the spraying cavity 6 without leakage.

Above-mentioned high temperature flue 1 inner wall has set gradually flue wallboard 101 and flue heat preservation 102 from inside to outside and can strengthen the stability and the fastness that the part on the high temperature flue 1 lateral wall is connected through setting up flue wallboard 101, can maintain high temperature flue 1 internal temperature through setting up flue heat preservation 102, reduces the heat loss, has played energy-concerving and environment-protective effect. And, high temperature flue 1 includes upper flue and lower flue, and the cross-section of upper flue is square, and the cross-section of lower flue is semi-circular, and the radial dimension of this upper flue is the same with the radius of lower flue, and the upper flue of square cross-section is beaten than the lower flue sectional area of semi-circular cross-section to can further reduce the velocity of flow of high temperature flue gas under the prerequisite that does not increase evaporation flue radial dimension. Meanwhile, the upper flue with the square section is easier to realize reasonable arrangement compared with the semicircular section, and more importantly, the deposited dust can not deposit and scale on the inner wall of the upper flue with the square section. The scraper only needs to scrape off scales on the inner wall of the lower flue, and therefore, a gap is formed between the rectangular scraper and the spiral scraper and the inner wall of the lower flue.

The high-temperature flue 1 is arranged at one end far away from the flue gas inlet in a downward inclined mode, the included angle between the inclined plane and the horizontal plane is not more than 10 degrees, and the high-temperature flue 1 is arranged in an inclined mode, so that accumulated dust at the bottom in the high-temperature flue 1 can automatically slide into a dust remover connected subsequently, and the phenomenon of blocking can not be caused.

Above-mentioned ash discharge assembly 3 includes bracing piece 301, rotation axis 302 and fixed bolster 303, fixed bolster 303 sets up and supports rotation axis 302 on high temperature flue 1 inner wall, bracing piece 301 is welded on rotation axis 302 by mistake, the tip of bracing piece 301 is provided with the scraper blade 304 that is used for detaching high temperature flue 1 inner wall scale deposit, scraper blade 304 can dismantle with bracing piece 301 and be connected, specifically, bracing piece 301 can set up to the radius length of flue under high temperature flue 1 with scraper blade 304 longest, scraper blade 304 laminates with the lower flue inner wall of high temperature flue 1, and then strikes off whole scales.

The whole working flow of the desulfurization wastewater treatment device in practical application is as follows:

referring to fig. 1, the desulfurization waste water device of the present invention is arranged between a boiler and a desulfurization tower, and comprises a high temperature flue 1, an atomizer 2 and an ash discharge assembly 3, wherein the atomizer 2 is obliquely arranged at the flue gas inlet of the high temperature flue 1, as shown in fig. 2, the oblique direction of the atomizer 2 is set to be 20-60 degrees from the axial direction of the high temperature flue 1, specifically, the atomizer 2 is a two-fluid atomizer, and the atomization angle thereof is less than 30 degrees; the high-temperature flue 1 comprises an upper flue and a lower flue, the section of the upper flue is square, the section of the lower flue is semicircular, and a flue wall plate 101 and a flue insulating layer 102 are sequentially arranged on the inner wall of the high-temperature flue 1 from inside to outside; referring to fig. 3, a plurality of sprayers 2 are arranged on flue wall plates 101 at both sides of the high-temperature flue 1 in a crossed manner, and specifically, the sprayers 2 are connected with the flue wall plates 101 through threads.

Referring to fig. 4 and showing, atomizer 2 includes L type inlet tube 4, air inlet switch 5, spouts chamber 6 and nozzle 7, and nozzle 7 is connected and sets up inside high temperature flue 1 with the one end of spouting chamber 6, and air inlet switch 5 sets up on L type inlet tube 4, and L type inlet tube 4 can be dismantled with spouting chamber 6 and be connected, specifically, L type inlet tube 4 with spout chamber 6 and pass through flange 201 and be connected, be provided with gasket 202 between the flange 201 of two butts.

Specifically, the nozzle 7 of the sprayer 2 is arranged inside the high-temperature flue 1, the direction of the spray nozzle 2 for spraying the waste liquid and the fog drops is opposite to the gas inlet direction of the flue gas, the L-shaped water inlet pipe 4, the gas inlet switch 5 and the spray cavity 6 are arranged outside the high-temperature flue 1, and as shown in the figure 2, the periphery of the nozzle 7 is wrapped and provided with an anti-abrasion cover 8, the anti-abrasion cover 8 is connected with the inner wall of the high-temperature flue 1, and specifically, the anti-abrasion cover 8 can be welded on the side wall of the flue of the high-temperature flue 1.

Referring to fig. 1, the ash discharging assembly 3 includes a support rod 301, a rotation shaft 302 and a fixing bracket 303, the fixing bracket 303 is fixedly disposed on the inner wall of the high temperature flue 1 to support the rotation shaft 302, the support rod 301 is welded to the rotation shaft 302 in a staggered manner, specifically, the rotation shaft 302 is controlled by a driving motor, the support rod 301 is driven to rotate in the high temperature flue by the rotation shaft 302, and then ash is removed, the length of the support rod 301 can be set to different lengths, a scraper 304 for removing the scale on the inner wall of the high temperature flue 1 is disposed at the end of the support rod 301, the scraper 304 is detachably connected to the support rod 301, specifically, the total length of the scraper 304 and the support rod 301 is the longest length of the lower flue radius of the high temperature flue 1, the scraper 304 and the support rod 301 can be connected to the support rod 301 by a screw or a joint, the high temperature flue 1 is inclined downward at the end far away from the flue gas inlet, the included angle between the inclined plane and the horizontal plane is not more than 10, by disposing the ash discharging assembly 3 inside the high temperature flue 1, when the desulfurization wastewater treatment device is operated, the ash deposits on the inner wall of the high temperature flue 1 to form scale and block the high temperature flue 1, thereby preventing the high temperature flue from blocking phenomenon caused by the subsequent high temperature flue 1 from the subsequent dust collector, and preventing the flue from being blocked.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a desulfurization effluent treatment plant, its characterized in that, includes high temperature flue, atomizer and row's ash subassembly, the atomizer slope sets up the flue gas air inlet of high temperature flue for spout into desulfurization waste water the high temperature flue carries out evaporation treatment, arrange the ash subassembly set up in inside the high temperature flue, be used for the deposition discharge that produces after will evaporating.

2. The desulfurization wastewater treatment apparatus according to claim 1, wherein an angle between an inclined direction of the sprayer and an axial direction of the high-temperature flue is 20 ° to 60 °.

3. The desulfurization wastewater treatment device of claim 1, wherein the sprayer comprises an L-shaped water inlet pipe, an air inlet switch, a spray chamber and a nozzle, the nozzle is connected with one end of the spray chamber and arranged inside the high-temperature flue, the air inlet switch is arranged on the L-shaped water inlet pipe, and the L-shaped water inlet pipe is detachably connected with the other end of the spray chamber.

4. The desulfurization wastewater treatment device of claim 3, wherein the nozzle is wrapped with an anti-wear cover, and the anti-wear cover is connected with the inner wall of the high-temperature flue.

5. The desulfurization wastewater treatment device according to claim 1, wherein a flue wall plate and a flue heat-insulating layer are sequentially arranged on the inner wall of the high-temperature flue from inside to outside.

6. The desulfurization wastewater treatment apparatus according to claim 5, wherein a plurality of said sprayers are arranged crosswise on said flue wall plate on both sides of said high-temperature flue.

7. The desulfurization wastewater treatment apparatus of claim 1, wherein the atomizer is a two-fluid atomizer having an atomization angle of less than 30 °.

8. The desulfurization wastewater treatment device according to any one of claims 1 to 7, wherein the ash discharge assembly comprises a support rod, a rotating shaft and a fixed support, a scraper for removing scale on the inner wall of the high-temperature flue is arranged at the end of the support rod, the fixed support is fixedly arranged on the inner wall of the high-temperature flue to support the rotating shaft, and the support rod is welded on the rotating shaft in a staggered manner.

9. The desulfurization wastewater treatment apparatus according to any one of claims 1 to 7, wherein the high-temperature flue comprises an upper flue and a lower flue, the upper flue has a square cross section, and the lower flue has a semicircular cross section.

10. The desulfurization wastewater treatment device according to any one of claims 1 to 7, wherein the high temperature flue is arranged to be inclined downwards at an end far away from the flue gas inlet, and an included angle between the inclined surface and a horizontal plane is not more than 10 degrees.

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