Water film dust remover and dust removal equipment

Abstract

The utility model provides a water film dust remover and dust removal equipment, and the water film dust remover comprises a tower body and a spraying part, the tower body is provided with a dust removal cavity, a gas inlet is formed in the bottom of the dust removal cavity, and a gas outlet is formed in the top; the spraying component comprises a first spraying assembly and a second spraying assembly which are sequentially arranged in the dust removal cavity from bottom to top. The high-pressure spraying of the first spraying assembly of the water film dust remover covers the connecting gap between the first conical seat and the first mounting seat to form a continuous sealing water film and eliminate a dust escape path, and the low-pressure spraying of the second spraying assembly expands the water film coverage range to avoid a local dry area; meanwhile, the first spraying unit realizes inertial collision trapping on large-particle dust under high pressure; the second spraying unit generates fine water mist at low pressure to adsorb dust and reduce the liquid drop entrainment rate, and dust-containing gas sequentially passes through the high-pressure area and the low-pressure area to form stepped purification when rising through the gas inlet, so that the dust removal efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of dust removal equipment, specifically, relates to a water film dust collector and dust removal equipment. BACKGROUND

[0002] As the core equipment of industrial flue gas purification, the performance of the water film dust collector directly affects the dust capture efficiency and operation cost.

[0003] The conventional spraying system adopts vertical spraying or single conical structure, which is prone to cause local "dry area" due to uneven water distribution, especially at the connection between the conical surface and the mounting seat, which is prone to form a gap, and dust is easy to escape or accumulate, reducing the dust removal efficiency. At the same time, the single spraying pressure cannot meet the capture requirements of dust of different particle sizes, and although high-pressure spraying can enhance the adhesion of the water film, it may cause liquid droplet entrainment due to excessive atomization, increasing the demisting burden, and low-pressure spraying is difficult to cover large particles of dust, resulting in poor dust removal effect. SUMMARY

[0004] Therefore, in order to solve the problem of uneven water film coverage and poor spraying pressure adaptability of the existing water film dust collector, which leads to poor dust removal effect, the utility model provides a water film dust collector and dust removal equipment, and the specific technical scheme is as follows:

[0005] On the one hand, a water film dust collector, comprising a tower body and a spraying component; the tower body is provided with a dust removal cavity, the bottom of the dust removal cavity is provided with an air inlet, and the top is provided with an air outlet; the spraying component comprises a first spraying assembly and a second spraying assembly which are sequentially arranged in the dust removal cavity from bottom to top; the first spraying assembly comprises a first spraying unit, a first mounting seat, and a first conical seat mounted on the first mounting seat; the first mounting seat is provided with a first air hole; the first spraying unit sprays onto the conical surface of the first conical seat, so that the water forms a water film covering the gap between the first conical seat and the first mounting seat; the second spraying assembly comprises a second spraying unit, a second mounting seat, and a second conical seat mounted on the second mounting seat; the second mounting seat is provided with a second air hole; the spraying pressure of the first spraying unit is greater than that of the second spraying unit.

[0006] The above-mentioned water film dust collector, the high-pressure spraying of the first spraying assembly covers the gap between the first conical seat and the first mounting seat, forming a continuous sealing water film, eliminating the dust escape path, and the low-pressure spraying of the second spraying assembly expands the coverage range of the water film, avoiding local dry area; at the same time, the first spraying unit realizes inertial collision capture for large particle dust at high pressure; the second spraying unit generates fine water mist to adsorb fine dust at low pressure, reducing the liquid droplet entrainment rate; when the dust-containing gas rises through the air inlet, it passes through the high-pressure area and the low-pressure area in turn, forming a step-by-step purification, thereby improving the dust removal efficiency.

[0007] Further, the taper angle of the first conical seat is greater than the taper angle of the second conical seat.

[0008] Further, the first mounting seat and the second mounting seat are both mounted on the tower body through a flange connection structure.

[0009] Further, a demisting component is arranged at the air outlet.

[0010] Further, the demisting component is a multi-layer filter screen structure, and the filter screen structure is formed by a plurality of parallel spiral springs.

[0011] Further, the tower body is provided with an inclined surface and a sewage collection outlet matched with the lowest part of the inclined surface.

[0012] Further, the first conical seat is provided with a spiral groove, and an ultrasonic vibration piece is embedded in the spiral groove.

[0013] On the other hand, a dust removal device comprises a water circulation system and a water film dust remover; the water circulation system provides spray water for the spray component and recovers mixed water gathered at the bottom of the tower body.

[0014] Further, the water circulation system comprises a transfer water tank, a liquid distribution component and a compression component; the transfer water tank is provided with a first water inlet communicated with the sewage collection outlet at the bottom of the tower body and a first water outlet communicated with the liquid distribution component; the liquid distribution component is provided with a second water outlet communicated with the compression component and a third water outlet communicated with the spray component.

[0015] Further, the side of the tower body away from the water circulation system is provided with a plurality of maintenance windows. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application can be further understood from the following description in conjunction with the drawings. The components in the drawings are not necessarily drawn to scale, but emphasis is instead placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0017] Figure 1 is a structure diagram of the water film dust remover according to an embodiment of the present application Figure One ;

[0018] Figure 2 is a structure diagram of the water film dust remover according to an embodiment of the present application Figure Two ;

[0019] Figure 3 is a structure diagram of the dust removal device according to an embodiment of the present application Figure One ;

[0020] Figure 4is a structural schematic of the dust removal equipment of one embodiment of the utility model Figure Two .

[0021] Mark explanation:

[0022] 1, tower body; 2, spray component; 3, flange connection structure; 4, demisting component; 5, water circulation system; 6, water film dust collector;

[0023] 101, dust removal cavity; 102, gas inlet; 103, gas outlet;

[0024] 11, inclined surface; 12, pollution collection outlet; 13, maintenance window;

[0025] 21, first spray assembly; 22, second spray assembly;

[0026] 211, first spray unit; 212, first mounting seat; 213, first conical seat;

[0027] 221, second spray unit; 222, second mounting seat; 223, second conical seat;

[0028] 51, transfer water tank; 52, liquid separation component; 53, compression component. DETAILED DESCRIPTION

[0029] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with its embodiment, and the utility model is further detailed.The specific embodiment described here is only used to explain the utility model, and does not limit the protection scope of the utility model.

[0030] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on another element or there can be a middle element.When an element is referred to as "connected to" another element, it can be directly connected to another element or there can be a middle element.The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs.Any term used herein in the specification of the utility model is only for the purpose of describing specific embodiments and is not intended to limit the utility model.The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] The "first" and "second" in the utility model do not represent the specific quantity and order, and are only used for distinguishing the names.

[0033] On the one hand, as Figure 1 And Figure 2 As shown in the utility model one embodiment of a water film dust collector, including tower body 1, and spray components 2, the tower body 1 is equipped with dust removal cavity 101, and the dust removal cavity 101 bottom is equipped with air inlet 102, and the top is equipped with air outlet 103, the spray components 2 include that first spray assembly 21 and second spray assembly 22 are sequentially arranged in the dust removal cavity 101 from bottom to top, the first spray assembly 21 includes first spray unit 211, first mounting seat 212 and first conical seat 213 installed on first mounting seat 212, the first mounting seat 212 is equipped with first air hole, the first spray unit 211 sprays to the conical surface of the first conical seat 213, so that the water liquid forms the water film covering the connecting gap of the first conical seat 213 and the first mounting seat 212, the second spray assembly 22 includes second spray unit 221, second mounting seat 222 and second conical seat 223 installed on second mounting seat 222, and the second mounting seat 222 is equipped with second air hole, and the spray pressure of the first spray unit 211 is greater than the spray pressure of the second spray unit 221.

[0034] The above-mentioned water film dust collector, the high-pressure spray of the first spray assembly 21 covers the connecting gap of the first conical seat 213 and the first mounting seat 212, forms continuous sealing water film, eliminates dust escape path, the low-pressure spray of the second spray assembly 22 expands the coverage range of water film, avoids local dry area, and simultaneously, the high pressure (such as 0.5MPa-1.0MPa) of the first spray unit 211 realizes inertial collision capture for large particle dust, and the low pressure (such as 0.2MPa-0.5MPa) of the second spray unit 221 generates fine water mist to adsorb dust, reduces droplet entrainment rate, and when dust-containing gas rises through the air inlet 102, sequentially passes through the high-pressure area and the low-pressure area, forms ladder type purification, thereby improving the dust removal efficiency.

[0035] In one embodiment, the conical surface slope of the first conical seat 213 is greater than the conical surface slope of the second conical seat 223, so that the greater slope (such as 60°-75°) of the first conical seat 213 can accelerate the water flow to downwash along the conical surface, form high-speed water film, produce stronger inertial collision capture effect on large particle dust, realize the effect of hierarchical capture optimization, and the smaller slope (such as 30°-45°) of the second conical seat 223 prolongs the water film residence time, enhances the wetting adsorption effect on fine dust, and the difference between the two slopes forms complementation, thereby expanding the coverage range.

[0036] In one embodiment, both the first mounting base 212 and the second mounting base 222 are installed onto the tower body 1 via a flange connection structure 3. Thus, the flange connection structure 3 secures the spray assembly to the tower body 1 with bolts, eliminating the need for welding or overall disassembly, shortening the replacement time for a single spray assembly, and achieving rapid assembly and disassembly. Simultaneously, by quickly replacing conical seats of different specifications, it adapts to various dust treatment scenarios.

[0037] In one embodiment, a demisting component 4 is also included at the air outlet 103. Thus, the demisting component 4 intercepts droplets entrained in the airflow, preventing water mist from being discharged and polluting the environment.

[0038] In one embodiment, the demisting component 4 is a multi-layer filter structure, which is composed of multiple helical springs arranged side by side. Thus, the elastic structure of the helical springs generates micro-vibrations under the impact of airflow, automatically shaking off adhering droplets and preventing filter clogging.

[0039] In one embodiment, the helical spring is made of 316L stainless steel, which has better corrosion resistance than traditional baffles and helps to extend its service life.

[0040] In one embodiment, the bottom of the tower body 1 is provided with an inclined surface 11 and a sludge collection outlet 12 adapted to the lowest point of the inclined surface 11. In this way, by setting the inclined surface 11 with an inclination angle greater than 5°, the dusty sewage is guided to quickly collect to the sludge collection outlet 12, avoiding blockage or corrosion caused by the accumulation of mud at the bottom; at the same time, the sludge collection outlet 12 is equipped with an automatic valve, which can control the discharge of sewage at regular intervals or remotely, reducing the amount of manual cleaning work.

[0041] In one embodiment, the first conical seat 213 is provided with a spiral groove, in which an ultrasonic vibrating plate is embedded. Thus, the ultrasonic vibrating plate periodically removes the sticky dust deposited in the groove at a frequency of 20kHz to 40kHz, preventing spray failure and extending the maintenance cycle.

[0042] Specifically, the spiral groove is set on the upper surface of the first conical seat 213 to guide the water flow to diffuse along a preset path, eliminating water film breaks or splashes on the conical surface.

[0043] On the other hand, such as Figure 3 and Figure 4 As shown, a dust removal device in one embodiment of this utility model includes a water circulation system 5 and a water film dust collector 6. The water circulation system 5 provides spray water to the spraying component 2 and recovers the mixed water that collects at the bottom of the tower body 1. In this way, the wastewater at the bottom of the tower body 1 of the water film dust collector 6 is recovered by the water circulation system 5, and after sedimentation and filtration, it is reused for spraying, saving water; at the same time, it achieves "zero discharge" of wastewater, meeting environmental protection regulations.

[0044] In one of the embodiments, the water circulation system 5 comprises a transfer tank 51, a distribution component 52 and a compression component 53; the transfer tank 51 is communicated with the first water inlet of the sewage collecting outlet 12 at the bottom of the tower body 1 and the first water outlet communicated with the distribution component 52; the distribution component 52 is provided with the second water outlet communicated with the compression component 53 and the third water outlet communicated with the spraying component 2. In this way, the transfer tank 51 deposits large particle sludge, the distribution component 52 pressurizes the clean water to supply the spraying system, the compression component 53 processes high-concentration sewage, the division of labor is clear, the system stability is improved; at the same time, the distribution component 52 controls the spraying water pressure through the proportional valve to match the dust removal demand in real time.

[0045] In one of the embodiments, the tower body 1 is provided with a plurality of maintenance windows 13 away from the side of the water circulation system 5. In this way, the maintenance window 13 is located at the dry side of the tower body (away from the water circulation system 5), avoiding contacting sewage or corrosive medium during maintenance, improving the operation safety and improving the maintenance convenience; at the same time, the key modules such as the spraying component 2 and the demisting component 4 can be directly maintained through the maintenance window 13, shortening the single maintenance time and not needing to stop for local maintenance.

[0046] In one embodiment, the maintenance window 13 adopts a quick-release double-layer sealing cover (embedded acid and alkali-resistant rubber ring), optimizing the sealing and protection effect; at the same time, the maintenance window 13 is distributed and arranged according to the height of the tower body 1 or the layered structure of each layer, supporting different maintenance scene requirements (such as upper demister maintenance or lower conical seat cleaning).

[0047] The technical features of the above-mentioned embodiments can be combined arbitrarily, in order to make the description simple, not all possible combinations of the technical features in the above-mentioned embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the description.

[0048] The above-mentioned embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the application patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the application patent should be subject to the appended claims.

Claims

1. A water film dust collector, characterized in that, Includes the tower body (1) and the spraying components (2); The tower body (1) is provided with a dust removal chamber (101), and the dust removal chamber (101) is provided with an air inlet (102) at the bottom and an air outlet (103) at the top; The spray component (2) includes a first spray assembly (21) and a second spray assembly (22) arranged sequentially from bottom to top in the dust removal chamber (101). The first spray assembly (21) includes a first spray unit (211), a first mounting base (212), and a first conical seat (213) mounted on the first mounting base (212). The first mounting base (212) is provided with a first vent hole. The first spray unit (211) sprays water onto the conical surface of the first conical seat (213) to form a water film covering the connection gap between the first conical seat (213) and the first mounting base (212). The second spray assembly (22) includes a second spray unit (221), a second mounting base (222), and a second conical seat (223) mounted on the second mounting base (222). The second mounting base (222) is provided with a second vent hole. The spray pressure of the first spray unit (211) is greater than the spray pressure of the second spray unit (221).

2. The water film dust collector according to claim 1, characterized in that, The slope of the first conical seat (213) is greater than the slope of the second conical seat (223).

3. The water film dust collector according to claim 1, characterized in that, Both the first mounting base (212) and the second mounting base (222) are installed onto the tower body (1) via a flange connection structure (3).

4. The water film dust collector according to claim 1, characterized in that, It also includes a demisting component (4) installed at the air outlet (103).

5. A water film dust collector according to claim 4, characterized in that, The demisting component (4) is a multi-layer filter structure, which is composed of multiple helical springs arranged in parallel.

6. A water film dust collector according to claim 1, characterized in that, The bottom of the tower body (1) is provided with an inclined surface (11) and a sewage collection outlet (12) adapted to the lowest point of the inclined surface (11).

7. A water film dust collector according to claim 1, characterized in that, The first conical seat (213) is provided with a spiral groove, and an ultrasonic vibrating plate is embedded in the spiral groove.

8. A dust removal device, characterized in that, Includes a water circulation system (5) and a water film dust collector (6) as described in any one of claims 1 to 7; The water circulation system (5) provides spray water to the spray component (2) and recovers the mixed water that gathers at the bottom of the tower body (1).

9. A dust removal device according to claim 8, characterized in that, The water circulation system (5) includes a transfer water tank (51), a liquid distribution component (52), and a compression component (53); The transfer tank (51) is connected to the first inlet of the sludge collection outlet (12) at the bottom of the tower body (1) and the first outlet of the liquid distribution component; The liquid separation component (52) is provided with a second water outlet connected to the compression component (53) and a third water outlet connected to the spray component (2).

10. A dust removal device according to claim 8, characterized in that, The tower body (1) has several maintenance windows (13) on the side away from the water circulation system (5).

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