Water-saving purification tower for industrial smoke pollution treatment

Abstract

The utility model discloses a water-saving purification tower for industrial smoke dust pollution treatment, and belongs to the technical field of industrial smoke dust purification. Comprising a purification tower main body with a through hole in the center and a gas outlet in the bottom end, a smoke dust treatment module arranged in the purification tower main body, and a spraying box body arranged at the bottom end of the purification tower main body, when the device is used, industrial smoke passes through an S-shaped flowing path formed among the first through hole, the atomization cavity and the membrane separation cavity, so that the treatment time of the industrial smoke in the purification tower main body is greatly prolonged, and the industrial smoke has more time to be in full contact with a filter screen, atomized liquid drops in the atomization cavity and a separation membrane in the membrane separation cavity in the purification tower; the removal effect of various pollutants in the industrial smoke dust is improved, and it is ensured that the purified gas meets the stricter environmental protection standard.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial smoke purification technical field, concretely relates to a water -saving type purification tower for industrial smoke pollution treatment. BACKGROUND

[0002] With the acceleration of industrialization, the problem of industrial smoke pollution is increasingly serious, especially the smoke discharged by the steel, chemical industry, power industry contains a large amount of particulate matter, sulfur oxide, nitrogen oxide and other harmful substances, which has caused serious threat to the environment and human health, in order to deal with this problem, countries have introduced strict environmental regulations, and industrial enterprises must effectively control smoke to ensure that the emission meets the standards.

[0003] At present, the industrial smoke treatment technology mainly includes electrostatic precipitation, bag type dust removal, wet dust removal etc., wherein, wet dust removal technology is widely applied because of its high efficiency and wide application range, wet dust removal technology contacts with smoke by spraying water or other liquid, and removes gaseous pollutants by chemical reaction while capturing particulate matter in smoke by liquid droplets, however, the traditional wet dust removal technology has problems such as large water consumption and difficult waste liquid treatment, especially in the area where water resources are scarce, its application is limited.

[0004] In order to overcome the shortcomings of traditional wet dust removal technology, in recent years, water-saving smoke purification technology has gradually become a research hotspot, water-saving purification technology reduces water consumption and realizes the recycling of waste liquid by optimizing the spraying system and introducing membrane separation technology, however, the existing water-saving purification equipment still has problems such as low purification efficiency and complex maintenance, which is difficult to meet the increasingly strict environmental requirements.

[0005] Therefore, it is of important practical significance and application value to develop an efficient, water-saving and easy-to-maintain industrial smoke purification equipment. CONTENT OF THE UTILITY MODEL

[0006] In view of the above problems, the utility model discloses a water-saving type purification tower for industrial smoke pollution treatment.

[0007] The technical scheme of the utility model is: a water-saving type purification tower for industrial smoke pollution treatment, comprising a purification tower main body provided with a through hole at the center and an air outlet at the bottom end, a smoke treatment module arranged in the purification tower main body, and a spraying box body arranged at the bottom end of the purification tower main body.

[0008] The purification tower main body is internally provided with a first through cylinder which is buckled with the through hole at the upper end, and the bottom end of the purification tower main body is provided with a second through cylinder which is located at the periphery of the first through cylinder, and the upper end of the through hole is buckled with a containing cover which is communicated with the outside; the first through cylinder and the second through cylinder form an atomization cavity, the second through cylinder and the inner wall of the purification tower main body form a membrane separation cavity, and the bottom end of the atomization cavity is provided with a liquid discharge valve.

[0009] The smoke treatment module comprises a filter screen arranged in the first through cylinder, a plurality of spray pipes arranged on the inner wall of the atomization cavity, a plurality of atomizing nozzles arranged on each spray pipe, and a membrane separation plate arranged in the membrane separation cavity in the horizontal direction.

[0010] The spray box body is connected with each spray pipe through a connecting main pipe, and a liquid suction pump is arranged at the connection position.

[0011] Further, the connecting position of the containing cover and the through hole is buckled with a flow slowing net plate, the filter screen has a plurality of filter screens which are staggered and arranged at the bottom end of the flow slowing net plate, and the bottom end of the filter screen extends into the first through cylinder, and the upper end of the containing cover is provided with an inspection cover plate.

[0012] When the industrial smoke enters the containing cover, it enters the first through cylinder through the flow slowing net plate, and is filtered by the staggered filter screens, so that the particulate matters in the industrial smoke are removed, the removal efficiency of the particulate matters is improved, and the smoke purification effect is ensured.

[0013] Further, half of the plurality of spray pipes are distributed in the circumferential direction of the outer wall of the first through cylinder, and the other half are distributed in the circumferential direction of the inner wall of the second through cylinder, and the spray pipes on the outer wall of the first through cylinder and the spray pipes on the inner wall of the second through cylinder are staggered.

[0014] The spray pipes are divided into two parts, and the two parts of the spray pipes are staggered, so that the atomized medicament is sprayed from all directions, the mixing of the industrial smoke and the medicament is ensured, the local concentration is prevented from being too high or too low, the waste of the medicament is reduced, and the purification effect is enhanced.

[0015] Further, the membrane separation plate has three, three membrane separation plates are distributed from top to bottom along the inner wall of the membrane separation cavity, and the three membrane separation plates are respectively a flat membrane, a roll-type membrane and a hollow fiber membrane.

[0016] Description: After the spray treatment of industrial dust from top to bottom through the flat membrane, the membrane and the hollow fiber membrane treatment, through the flat membrane preliminary filtration, remove the larger particles and liquid drops, through the membrane to remove the medium particle size of particulate matter and part of the gaseous pollutants, through the hollow fiber membrane to remove the small particulate matter and difficult to handle gaseous pollutants, through the hierarchical processing, gradually improve the purification efficiency, ensure that the dust emission standard.

[0017] Further, the filter residue net is horizontally arranged in the spray box, and the inner wall of the spray box is provided with an ultraviolet sterilization lamp.

[0018] Description: The atomized waste liquid is discharged into the spray box through the discharge valve, at this time, the solid residues in the waste liquid are removed through the filter residue net, and the filtered waste liquid is sterilized through the ultraviolet sterilization lamp, so that the waste liquid is cleaned and reused, resource recycling is realized, and the operation cost is reduced.

[0019] The beneficial effects of the utility model are as follows:

[0020] When the water-saving purification tower for industrial dust pollution treatment is used, the industrial dust passes through the S-shaped flow path formed between the first through hole, the atomization cavity and the membrane separation cavity, so that the treatment time in the main body of the purification tower is greatly prolonged, the industrial dust has more time to fully contact the filter screen, the atomized liquid drops in the atomization cavity and the separation membrane in the membrane separation cavity, the removal effect of various pollutants in the industrial dust is improved, and the purified gas meets more stringent environmental protection standards; when the filter screen needs to be cleaned or replaced, the maintenance cover plate is opened, the slow flow net plate is taken out from the through hole, and the slow flow net plate and the filter screen are modularly designed and can be integrally removed, so that the filter screen is conveniently cleaned or replaced, and the structure realizes convenient maintenance, efficient filtration and modular operation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the internal structure schematic diagram of the utility model;

[0022] Figure 2 is the connection structure schematic diagram of the filter screen and the slow flow net plate of the utility model;

[0023] Figure 3 is the structure schematic diagram of the slow flow net plate of the utility model;

[0024] Figure 4 is the top view of the utility model.

[0025] Wherein, 1-purification tower main body, 10-through hole, 11-the first through cylinder, 12-the second through cylinder, 13-housing cover, 130-flow net board, 131-inspection cover plate, 14-atomization cavity, 15-membrane separation cavity, 16-drain valve, 2-smoke dust control module, 20-filter screen, 21-sprinkler pipe, 22-atomizing nozzle, 23-membrane separation plate, 3-sprinkling box, 30-connection main pipe, 31-pumping, 32-filtration residue screen, 33-UV sterilization lamp. DETAILED DESCRIPTION

[0026] Embodiment 1: as shown in Figure 1 , 4 , a water-saving purification tower for industrial smoke pollution control, comprising a purification tower main body 1 provided with a through hole 10 at the center and an air outlet at the bottom end, a smoke dust control module 2 arranged in the purification tower main body 1, and a sprinkling box 3 arranged at the bottom end of the purification tower main body 1.

[0027] The purification tower main body 1 is provided with a first through cylinder 11 connected with the through hole 10 at the upper end, and the bottom end of the purification tower main body 1 is provided with a second through cylinder 12 located at the periphery of the first through cylinder 11, and the upper end of the through hole 10 is connected with a housing cover 13 in communication with the outside; the first through cylinder 11 and the second through cylinder 12 form an atomization cavity 14, and the second through cylinder 12 and the inner wall of the purification tower main body 1 form a membrane separation cavity 15, and the bottom end of the atomization cavity 14 is provided with a drain valve 16, wherein the drain valve 16 adopts existing technology, for example, an 11-LD DSC stainless steel drain valve can be used;

[0028] The smoke dust control module 2 comprises a filter screen 20 arranged in the first through cylinder 11, 16 sprinkler pipes 21 arranged on the inner wall of the atomization cavity 14, 11 atomizing nozzles 22 arranged on each sprinkler pipe 21, and a membrane separation plate 23 arranged in the membrane separation cavity 15 in the horizontal direction, wherein the atomizing nozzle 22 adopts existing technology, for example, an A-type water mist nozzle can be used;

[0029] The membrane separation plate 23 has three, three membrane separation plates 23 are distributed from top to bottom along the inner wall of the membrane separation cavity 15, and the three membrane separation plates 23 are flat membrane, roll-type membrane and hollow fiber membrane respectively, and the industrial smoke after sprinkling treatment passes through the flat membrane, roll-type membrane and hollow fiber membrane from top to bottom for treatment, removes larger particles and liquid droplets through the flat membrane, removes medium-sized particles and part of gaseous pollutants through the roll-type membrane, and removes small particles and difficult-to-treat gaseous pollutants through the hollow fiber membrane, and through the hierarchical treatment, the purification efficiency is gradually improved to ensure that the smoke meets the emission standard;

[0030] The spray box 3 is connected with each spray pipe 21 through a connecting main pipe 30, and a liquid suction pump 31 is arranged at the connection position, wherein the medicament stored in the spray box 3 is ammonia water, and the liquid suction pump 31 is of an existing technology, for example, a liquid suction pump with a model of SB-2 can be used.

[0031] As shown in Figure 2 , 3 , the accommodating cover 13 is buckled with a flow slowing net plate 130 at the connection position of the through hole 10, the filter screen 20 has 14 filter screens 20, the 14 filter screens 20 are staggered and arranged at the bottom end of the flow slowing net plate, and the bottom end of the filter screen 20 extends into the first through cylinder 11, and the upper end of the accommodating cover 13 is provided with an inspection cover plate 131, when the industrial smoke enters the accommodating cover 13, it enters the first through cylinder 11 through the flow slowing net plate 130, and is filtered by the staggered filter screens 20, so that the particulate matters in the industrial smoke are removed, the removal efficiency of the particulate matters is improved, and the smoke purification effect is ensured, when the filter screen 20 needs to be cleaned or replaced, the inspection cover plate 131 is opened, and the flow slowing net plate 130 is pulled out from the through hole 10, the flow slowing net plate 130 and the filter screen 20 are designed in a modular manner, and can be removed as a whole, so that the cleaning or replacement is facilitated, and the convenient maintenance, efficient filtering and modular operation are realized.

[0032] Among the 16 spray pipes 21, half of them are distributed in the circumferential direction on the outer wall of the first through cylinder 11, and the other half are distributed in the circumferential direction on the inner wall of the second through cylinder 12, and the spray pipes 21 located on the outer wall of the first through cylinder 11 and the spray pipes 21 located on the inner wall of the second through cylinder 12 are staggered, so that the spray pipes 21 are divided into two parts, and the staggered distribution of the two parts of the spray pipes 21 is limited, so that the atomized medicament is sprayed from all directions, the mixing of the industrial smoke and the medicament is ensured, the local concentration is avoided to be too high or too low, the waste of the medicament is reduced, and the purification effect is enhanced.

[0033] The filter residue net 32 is arranged horizontally in the spray box 3, the ultraviolet sterilization lamp 33 is arranged on the inner wall of the spray box 3, the waste liquid after the atomization treatment is discharged to the spray box 3 through the liquid discharge valve 16, at this time, the solid residues in the waste liquid are removed through the filter residue net 32, and the filtered waste liquid is sterilized through the ultraviolet sterilization lamp 33, so that the waste liquid is cleaned and reused, the resource recycling is realized, and the operation cost is reduced, wherein the filter residue net 32 and the ultraviolet sterilization lamp 33 are of an existing technology, for example, the filter residue net 32 is of a model of FZ-Y180SFS, and the ultraviolet sterilization lamp 33 is of a model of UVCH4D15X135-G5.

[0034] The use method of the water-saving purification tower for industrial smoke pollution treatment in the embodiment comprises the following steps:

[0035] S1. After industrial dust enters the containment hood 13, it enters the first through cylinder 11 through the slow flow mesh plate 130, and undergoes multi-layer filtration through the staggered filter screen 20 to remove particulate matter from the industrial dust.

[0036] S2. The industrial dust treated in step S1 flows into the atomization chamber 14 from the bottom of the first through cylinder 11. At this time, the agent in the spray box 3 is pumped into each spray pipe 21 by the liquid pump 31 and sprayed out from each direction through each atomizing nozzle 22. It is then fully mixed with the industrial dust treated in step S1 to carry out desulfurization and denitrification treatment.

[0037] S3. The gas after step S2 flows into the membrane separation chamber 15 from the upper end of the second through-tube 12, and is processed sequentially through a flat sheet membrane, a spiral wound membrane and a hollow fiber membrane distributed from top to bottom. The flat sheet membrane is used for preliminary filtration to remove larger particles and droplets, the spiral wound membrane is used to remove medium-sized particles and some gaseous pollutants, and the hollow fiber membrane is used to remove small particles and difficult-to-treat gaseous pollutants.

[0038] S4. The purified gas after membrane separation is discharged through the outlet.

[0039] In steps S5 and S2, the waste liquid after atomization is discharged into the spray box 3 through the drain valve 16. At this time, the solid residue in the waste liquid is removed by the filter screen 32, and the filtered waste liquid is sterilized by the ultraviolet germicidal lamp 33, so that the waste liquid can be cleaned and reused.

Claims

1. A water-saving purification tower for industrial dust pollution control, characterized in that, It includes a purification tower body (1) with a through opening (10) at the center and an air outlet at the bottom, a dust control module (2) located inside the purification tower body (1), and a spray box (3) located at the bottom of the purification tower body (1). The purification tower body (1) is provided with a first through cylinder (11) whose upper end is fastened to the through port (10), and a second through cylinder (12) located around the first through cylinder (11) is provided at the bottom of the purification tower body (1). The upper end of the through port (10) is fastened with a receiving cover (13) that communicates with the outside. The first through cylinder (11) and the second through cylinder (12) form an atomization chamber (14), and the second through cylinder (12) and the inner wall of the purification tower body (1) form a membrane separation chamber (15). The bottom end of the atomization chamber (14) is provided with a drain valve (16). The dust control module (2) includes a filter screen (20) disposed in the first through cylinder (11), a plurality of spray pipes (21) disposed on the inner wall of the atomizing chamber (14), a plurality of atomizing nozzles (22) disposed on each of the spray pipes (21), and a membrane separation plate (23) disposed horizontally in the membrane separation chamber (15). The spray box (3) is connected to each spray pipe (21) via a connecting main pipe (30), and a liquid pump (31) is provided at the connection point.

2. The water-saving purification tower for industrial dust pollution control according to claim 1, characterized in that, A flow-slowing mesh plate (130) is fastened at the connection between the containment cover (13) and the through port (10). There are multiple filter screens (20), which are staggered and located at the bottom of the flow-slowing mesh plate. The bottom of the filter screens (20) extends into the interior of the first through cylinder (11). A maintenance cover plate (131) is provided at the upper end of the containment cover (13).

3. A water-saving purification tower for industrial dust pollution control according to claim 1, characterized in that, Of the plurality of spray pipes (21), half are distributed circumferentially on the outer wall of the first through-tube (11), and the other half are distributed circumferentially on the inner wall of the second through-tube (12).

4. A water-saving purification tower for industrial dust pollution control according to claim 1, characterized in that, There are three membrane separation plates (23), which are distributed from top to bottom along the inner wall of the membrane separation chamber (15), and the three membrane separation plates (23) are a flat sheet membrane, a spiral wound membrane, and a hollow fiber membrane, respectively.

5. A water-saving purification tower for industrial dust pollution control according to claim 1, characterized in that, The spray box (3) is equipped with a horizontally placed filter screen (32), and the inner wall of the spray box (3) is equipped with an ultraviolet germicidal lamp (33).

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