阅读说明：本技术 一种双级分区喷淋脱硫塔 (Double-stage partition spraying desulfurization tower ) 是由 汪兴杰 关杨 于 2021-08-30 设计创作，主要内容包括：本发明涉及烟气脱硫技术领域,尤其是涉及一种双级分区喷淋脱硫塔,包括脱硫塔主体,所述脱硫塔主体的右侧外表面靠近中间的位置贯穿设置有进烟管,所述脱硫塔主体的左侧外表面靠近上端的位置贯穿设置有回流管,所述回流管一端延伸至脱硫塔主体的内部中心位置并向上弯折,该装置结构不仅能够使循环液喷洒得更加均匀,面积更加广泛,使得脱硫效果大大提升,还能够自动地对储水池内壁进行清理收集,便于工作人员处理,且能自动的控制储水池内液面的高度,使循环液始终保持一个最佳的液面高度,既有利于离心泵的抽水,防止气蚀现象发生,又能使得储水池内的反应更加充足,整体结构简单,操作方便,大大的提高了工作效率。(The invention relates to the technical field of flue gas desulfurization, in particular to a two-stage partitioned spray desulfurization tower which comprises a desulfurization tower main body, wherein a smoke inlet pipe penetrates through the position, close to the middle, of the outer surface of the right side of the desulfurization tower main body, a return pipe penetrates through the position, close to the upper end, of the outer surface of the left side of the desulfurization tower main body, one end of the return pipe extends to the central position inside the desulfurization tower main body and is bent upwards, the structure of the device not only can enable circulating liquid to be sprayed more uniformly and the area to be wider, so that the desulfurization effect is greatly improved, but also can automatically clean and collect the inner wall of a water storage pool, is convenient for a worker to handle, can automatically control the height of the liquid level in the water storage pool, enables the circulating liquid to always keep an optimal liquid level height, is beneficial to pumping of a centrifugal pump, prevents cavitation phenomenon, and can enable the reaction in the water storage pool to be more sufficient, overall structure is simple, convenient operation, great improvement work efficiency.)

1. The utility model provides a doublestage subregion sprays desulfurizing tower, includes desulfurizing tower main part (1), its characterized in that: the desulfurization tower is characterized in that a smoke inlet pipe (2) is arranged at a position, close to the middle, of the outer surface of the right side of the desulfurization tower main body (1) in a penetrating manner, a backflow pipe (3) is arranged at a position, close to the upper end, of the outer surface of the left side of the desulfurization tower main body (1) in a penetrating manner, one end of the backflow pipe (3) extends to the inner center of the desulfurization tower main body (1) and is bent upwards, the other end of the backflow pipe extends to the outer portion of the desulfurization tower main body (1) and is bent downwards, a water storage tank (7) is fixedly connected to the outer surface of the lower end of the desulfurization tower main body (1), a suction pipe (5) is arranged at a position, close to the lower end, of the outer surface of the left side of the water storage tank (7) in a penetrating manner, a centrifugal pump (4) is fixedly connected to the lower end of the backflow pipe (3), the lower end of the centrifugal pump (4) is fixedly connected with the suction pipe (5), and a spraying mechanism (6) is movably connected to the outer surface of the top ring of the backflow pipe (3), the position that the right side surface of tank (7) is close to the upper end runs through and is provided with inlet tube (8), inlet tube (8) are located tank (7) inner wall left side position fixedly connected with accuse liquid subassembly (9), spout (10) have been seted up to the annular internal surface of tank (7), the quantity of spout (10) is four groups, four groups spout (10) use the center pin of tank (7) as central circumference equidistance and distribute, a set of spout (10) correspond each other with the position of inlet tube (8), the internal surface sliding connection of spout (10) has slider (11), slider (11) are close to tank (7) center one side surface fixedly connected with clearance subassembly (12), activity hole (15) have been seted up to the bottom internal surface of tank (7), the internal surface swing joint of activity hole (15) has end cover (16), the end cover (16) is fixedly connected with the water storage tank (7) through bolts, a rubber gasket is arranged at the joint of the end cover and the water storage tank, and a liquid discharge pipe (17) penetrates through the position, close to the lower end, of the outer surface of the right end of the water storage tank (7);

the spraying mechanism (6) comprises a universal joint (61), a central platform (62), a slide valve (63), a first pressure spring (64), a connecting rod (65), a helical blade (66), a first spray pipe (67), a spray hole (68), a support frame (69) and a toothed nail (610), wherein the annular outer surface of the top end of the return pipe (3) is movably connected with the universal joint (61), the top end of the universal joint (61) is fixedly connected with the central platform (62), the universal joint (61) and the return pipe (3) are communicated with each other, the slide valve (63) is movably connected inside the central platform (62), the top end of the inner surface of the central platform (62) is fixedly connected with the first pressure spring (64), the other end of the first pressure spring (64) is fixedly connected with the slide valve (63), and the position, close to the lower end, of the annular outer surface of the central platform (62) is fixedly connected with the first spray pipe (67), the utility model discloses a shower nozzle, including shower pipe one (67) and center platform (62), a plurality of groups have been seted up to the lower extreme surface equidistance of shower pipe one (67) and have been sprayed hole (68), lower extreme fixedly connected with support frame (69) are close to with the corresponding position of shower pipe one (67), the lower extreme surface of support frame (69) and the equal fixedly connected with in the corresponding position of spraying hole (68) dentate peg (610).

2. The dual stage zoned spray desulfurization tower of claim 1, wherein: the quantity of the first spray pipes (67) is twelve groups, twelve groups of the first spray pipes (67) are equidistantly distributed by taking the central shaft of the central platform (62) as the central circumference, and the first spray pipes (67) and the support frame (69) are mutually parallel and fixed in an inclined angle.

3. The dual stage zoned spray desulfurization tower of claim 1, wherein: the position that the lower extreme surface of shower one (67) is close to central platform (62) fixedly connected with shower two (13), shower two (13) and shower one (67) communicate each other, and shower two (13) keep away from central platform (62) one side surface and bottom surface and seted up a plurality of groups orifice (14).

4. The dual stage zoned spray desulfurization tower of claim 1, wherein: clearance subassembly (12) are including buoyancy ring (121), last scraper blade (122), lower scraper blade (123), disclose piece (124), filter screen (125), the upper end external surface fixedly connected with of buoyancy ring (121) goes up scraper blade (122), the lower extreme external surface fixedly connected with of buoyancy ring (121) scrapes down scraper blade (123), piece (124) are disclosed with the corresponding position fixedly connected with of through-hole (92) to the upper end surface of going up scraper blade (122), the diameter size of disclosing piece (124) is less than the diameter of through-hole (92), the annular internal surface threaded connection of buoyancy ring (121) has filter screen (125), filter screen (125) are the arc structural design.

5. The dual stage zoned spray desulfurization tower of claim 4, wherein: buoyancy ring (121) are ring type structural design, and it matches each other with tank (7), spout (10) are T type structural design and sliding connection with slider (11), the cross section of going up scraper blade (122) and lower scraper blade (123) is triangle-shaped structural design, and both use the center of buoyancy ring (121) to distribute as the mid point symmetry, go up scraper blade (122), lower scraper blade (123) and spout (10) corresponding position and all extend into the inside of spout (10) and match each other with spout (10).

6. The dual stage zoned spray desulfurization tower of claim 1, wherein: accuse liquid subassembly (9) is including solid fixed cylinder (91), through-hole (92), case (93), discharge orifice (94), pressure spring two (95), through-hole (92) have been seted up to the bottom surface of solid fixed cylinder (91), the inside swing joint of solid fixed cylinder (91) has case (93), case (93) run through with inlet tube (8) corresponding both sides surface and have seted up discharge orifice (94), the internal surface top fixedly connected with pressure spring two (95) of solid fixed cylinder (91), the other end and case (93) fixed connection of pressure spring two (95), the equal fixedly connected with rubber packing ring of upper and lower both ends surface of case (93).

Technical Field

The invention relates to the technical field of flue gas desulfurization, in particular to a two-stage partitioned spray desulfurization tower.

Background

The desulfurization tower is tower equipment for performing desulfurization treatment on industrial waste gas. The desulfurizing tower was originally built with granite as the most widely used, which utilized the principles of water film desulfurization and dust removal, also known as a granite water film desulfurization dust remover, or a granite water film desulfurization dust remover.

The advantages are easy maintenance, and can achieve the effects of dust removal and desulfurization (denitrification) by preparing different dust-removing agents. With the development of the glass fiber reinforced plastic technology, the desulfurization tower is gradually changed to be made of glass fiber reinforced plastic. Compared with a granite desulfurizing tower, the glass fiber reinforced plastic desulfurizing tower has the advantages of low cost, easy processing, no corrosion and light weight, thereby becoming the development trend of the desulfurizing tower in the future. In addition, 316L stainless steel has three advantages of corrosion resistance, high temperature resistance and wear resistance, and is one of important trends in the development of desulfurizing towers. Through years of improvement, various types of desulfurizing towers such as a Venturi type desulfurizing tower, a rotational flow plate type desulfurizing tower, a rotational flow column type desulfurizing tower, a floating ball type desulfurizing tower, a sieve plate type desulfurizing tower, a pneumatic emulsification desulfurizing tower and the like are developed, the equipment technology is mature day by day, and the equipment has advantages and defects, and enterprises can select different types according to self requirements;

the anti-blocking device for the spray header in the desulfurizing tower comprises a desulfurizing tower body, wherein a support frame is fixedly connected to the inner wall of the middle of the desulfurizing tower body, a support seat is fixedly mounted on one side, close to the center of the desulfurizing tower body, of the support frame, a support seat mounting cover is fixedly mounted at the top of the support seat, a spray pipe mounting seat is movably mounted in the support seat through a bearing, and a water pipe channel is fixedly mounted in the spray pipe mounting seat. The water pipe intakes, and the water pipe says and gets into the shower through flowing through, and inside getting into the shower head shell at last, flowing water impacted the impact plate, made it push down, compressed second spring pushes down the thimble, clears up the apopore of shower head, and the incrustation scale to shower nozzle water outlet department that can be quick is cleared up in the design of thimble, is favorable to using, has played the automatic clearance shower head, prevents the advantage of jam, has solved the problem that the shower head blockked up.

1. In the above-mentioned comparison patent, through providing a blockage prevention device for spray headers in a desulfurizing tower, which has the advantages of automatically cleaning the spray headers and preventing blockage, the problem of spray header blockage is solved, but the device is additionally provided with a motor to drive a spray mechanism to rotate, which increases the energy waste, and the structure in the spray headers is complex, which easily deposits a large amount of dust impurities to influence the normal operation of the cleaning mechanism, and meanwhile, the water pressure at the spray headers is difficult to control, which is easy to operate, which brings bad influence to the whole desulfurizing process, and in the process of the motor driving the spray headers to rotate, due to the effect of centrifugal force, the sprayed circulating liquid can be concentrated around, and the middle area is not sprayed with the circulating liquid, which greatly reduces the desulfurizing effect, easily causes a large amount of flue gas with sulfur dioxide to flow into the atmosphere to pollute the environment, and the whole is to be improved, and the desulfurizing tower is at the during operation, and the dust granule that has in the flue gas can be brought into the tank by the circulating liquid that sprays, is brought into spray mechanism by the centrifugal pump and causes the shower nozzle to block up easily, because the reaction of sulfur dioxide and circulating liquid, along with time increases, a lot of crystals can be long-pending to the tank inner wall, and the clearance gets up and its is troublesome, does not clear up totally will produce the corruption to the tank, influences the life of desulfurizing tower.

Therefore, a two-stage partition spray desulfurization tower is provided.

Disclosure of Invention

The invention aims to provide a two-stage partitioned spray desulfurization tower to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a two-stage partition spray desulfurization tower comprises a desulfurization tower main body, wherein a smoke inlet pipe is arranged at a position, close to the middle, of the outer surface of the right side of the desulfurization tower main body in a penetrating manner, a backflow pipe is arranged at a position, close to the upper end, of the outer surface of the left side of the desulfurization tower main body in a penetrating manner, one end of the backflow pipe extends to the inner central position of the desulfurization tower main body and is bent upwards, the other end of the backflow pipe extends to the outer part of the desulfurization tower main body and is bent downwards, a water storage tank is fixedly connected to the outer surface of the lower end of the desulfurization tower main body, a suction pipe is arranged at a position, close to the lower end, of the outer surface of the left side of the water storage tank in a penetrating manner, a centrifugal pump is fixedly connected to the lower end of the backflow pipe, a spraying mechanism is movably connected to the annular outer surface of the top end of the backflow pipe, a water inlet pipe is arranged at a position, close to the upper end, of the outer surface of the right side of the water storage tank in a penetrating manner, the inlet tube is located tank inner wall left side position fixedly connected with accuse liquid subassembly, the spout has been seted up to the annular internal surface of tank, the quantity of spout is four groups, four groups the spout uses the center pin of tank to distribute as central circumference equidistance, a set of the spout corresponds with the position of inlet tube each other, the internal surface sliding connection of spout has the slider, the slider is close to tank center one side external surface fixedly connected with clearance subassembly, the movable hole has been seted up to the bottom internal surface of tank, the internal surface swing joint in movable hole has the end cover, the end cover passes through bolt and tank fixed connection, and its both junctions are provided with the rubber packing ring, the right-hand member surface of tank runs through near the position of lower extreme and is provided with the fluid-discharge tube.

The spraying mechanism comprises a universal joint, a center platform, a slide valve, a first pressure spring, a connecting rod, a helical blade, a first spraying pipe, spraying holes, a support frame and a toothed nail, wherein the annular outer surface at the top end of the return pipe is movably connected with the universal joint, the top end of the universal joint is fixedly connected with the center platform, the universal joint and the return pipe are mutually communicated, the slide valve is movably connected inside the center platform, the top end of the inner surface of the center platform is fixedly connected with the first pressure spring, the other end of the first pressure spring is fixedly connected with the slide valve, the position of the annular outer surface of the center platform, which is close to the lower end, is fixedly connected with the first spraying pipe, the first spraying pipe and the center platform are mutually communicated, a plurality of groups of spraying holes are equidistantly formed in the outer surface at the lower end of the first spraying pipe, the position of the slide valve, which corresponds to the first spraying pipe, is close to the support frame, the outer surface of the lower end of the support frame is fixedly connected with a tooth nail at a position corresponding to the spraying hole.

Preferably, the first spray pipes are twelve groups in number, the first spray pipes are equidistantly distributed by taking the central shaft of the central platform as the central circumference, and the first spray pipes are parallel to the support frame and are fixed in an inclined angle.

Preferably, the outer surface of the lower end of the first spray pipe is fixedly connected with a second spray pipe close to the central platform, the second spray pipe is communicated with the first spray pipe, and a plurality of groups of spray holes are formed in the outer surface of one side, far away from the central platform, of the second spray pipe and the outer surface of the bottom end of the second spray pipe.

Preferably, the clearance subassembly includes buoyancy ring, last scraper blade, lower scraper blade, disclose piece, filter screen, the upper end fixed surface of buoyancy ring is connected with the upper scraper blade, the lower extreme fixed surface of buoyancy ring is connected with lower scraper blade, the piece is disclosed with the corresponding position fixed connection of through-hole to the upper end surface of last scraper blade, the diameter size of disclosing the piece is less than the diameter of through-hole, the annular internal surface threaded connection of buoyancy ring has the filter screen, the filter screen is arc structural design.

Preferably, the buoyancy ring is ring type structural design, and it matches each other with the tank, the spout is T type structural design and sliding connection with the slider, the cross section of going up the scraper blade and lower scraper blade is triangle-shaped structural design, and its both use the center of buoyancy ring as mid point symmetric distribution, go up the inside that the corresponding position of scraper blade, lower scraper blade and spout all extends into the spout and matches each other with the spout.

Preferably, the liquid control assembly comprises a fixed cylinder, a through hole, a valve core, a through hole and a pressure spring II, the through hole is formed in the outer surface of the bottom end of the fixed cylinder, the valve core is movably connected to the inside of the fixed cylinder, the through hole is formed in the outer surfaces of the two sides of the valve core corresponding to the water inlet pipe in a penetrating mode, the pressure spring II is fixedly connected to the top end of the inner surface of the fixed cylinder, the other end of the pressure spring II is fixedly connected with the valve core, and rubber gaskets are fixedly connected to the outer surfaces of the upper end and the lower end of the valve core.

Compared with the prior art, the invention has the beneficial effects that:

1. by adding the spraying mechanism in the device, the device can drive the spraying mechanism to rotate at a constant speed by utilizing water flow, so that circulating liquid can be sprayed more uniformly, the spraying area is wider, the desulfurization effect is greatly improved, the pollution to the atmosphere is reduced, automatic cleaning of the spraying holes can be realized before and after work, the smoothness of the spraying holes is effectively ensured, and the normal operation of the spraying mechanism is ensured;

2. by adding the cleaning assembly into the device, the cleaning assembly can be driven to automatically clean crystals and impurities on the inner wall of the water storage tank by utilizing the lifting of the liquid level of the circulating liquid, and the crystals and the impurities are concentrated at the bottom of the water storage tank and in the filter screen, so that the crystals and the impurities are convenient for workers to handle, the cleanness of the inner wall of the water storage tank is effectively ensured, the labor intensity of the workers is reduced, and the blockage of dust impurities entering a spraying mechanism to spraying holes is effectively reduced;

3. through adding accuse liquid subassembly in the device, mutually support with the clearance subassembly, can guarantee that the pond inner loop liquid of storing water is in an optimum liquid level all the time, existing normal the drawing of water that is favorable to the centrifugal pump, prevent to arouse the cavitation phenomenon because the liquid level is low excessively, be favorable to circulating liquid and sulfur dioxide's abundant reaction again, improved desulfurization effect greatly, avoided artifical frequent supervisory control, reduced staff's working strength, great improvement work efficiency.