CN214075775U

CN214075775U - Demister and spray tower applying same

Info

Publication number: CN214075775U
Application number: CN202022678863.8U
Authority: CN
Inventors: 林建平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-08-31
Anticipated expiration: 2030-11-18

Abstract

The utility model relates to a spray column of defroster and applied defroster, including the tower body, the air outlet has been seted up at the tower body top, installs the air-supply line on the lateral wall of tower body, installs spray set and defroster in the tower body, and the defroster is in spray set's top, and the defroster top has piled up plastics packing ball, has seted up a plurality of drying channel on the defroster, and drying channel is the passageway of buckling. When gas containing water mist wants to go from one side of defogging body to the opposite side of defogging body, water mist needs to pass through drying channel, and because drying channel is the passageway of buckling, the effect of inertial force and centrifugal force is used for striking on drying channel inner wall in the liquid particle motion process in the gas, and tiny liquid particle forms the water droplet on drying channel. In addition, a small part of liquid drops which are not collected by the demister are collected by plastic packing balls filled in a chamber at the upper part of the demister to form liquid drops, and then the liquid drops and the liquid drops formed by the demister drip drop into a tower body below.

Description

Demister and spray tower applying same

Technical Field

The application relates to the field of waste gas treatment, in particular to a demister and a spray tower applying the demister.

Background

With the development of enterprises in various rows, the emission of industrial waste gas has great influence and harm on air pollution, how to treat the industrial waste gas becomes a necessary problem for pollution treatment, and a plurality of enterprises also feel vexation for waste gas treatment. The current more conventional approach is to use a spray tower to treat the exhaust gases.

At present, there is a spray tower, as shown in fig. 1, which includes a tower body 1, an air outlet 11 is opened at the top of the tower body 1, and an air inlet pipe 2 is installed on the side wall of the bottom of the tower body 1. The tower body 1 is also internally provided with a spray bracket 31 and a water absorption component, and the water absorption component is positioned above the spray bracket 31.

The waste gas to be treated enters the body through the air inlet pipe 2 and flows back upwards along the tower body 1. The spraying support 31 sprays water to contact with the waste gas, so that the waste gas is cooled, solid particles in the waste gas are cleaned, demisting treatment is carried out through the water absorption assembly, and the waste gas after being treated is qualified is discharged and then enters the atmosphere.

The subassembly that absorbs water generally adopts the plastic screen cloth to pile up and forms, and the plastic screen cloth has a plurality of meshs, and gas can continue rebound through the mesh, and liquid can be intercepted by the plastic screen cloth.

In view of the above related technologies, the inventor believes that after the plastic mesh fabrics are stacked layer by layer, the passage gap of the plastic mesh fabrics between the adjacent layers is small, and the plastic mesh fabrics are easily attached by small liquid particles in the exhaust gas, so that a water film is formed between the plastic mesh fabrics of the adjacent layers, which causes the exhaust gas to fail to normally pass through, and affects the normal exhaust of the exhaust gas.

SUMMERY OF THE UTILITY MODEL

In order to make waste gas can normally discharge, this application provides a spray column of defroster and applied defroster.

The application provides a defroster adopts following technical scheme:

the utility model provides a demister, includes the defogging body, a plurality of dry channels have been seted up on the defogging body, the both sides lateral wall of dry channel intercommunication defogging body, dry channel is the passageway of buckling.

Through adopting above-mentioned technical scheme, when the gas that contains water smoke wants to follow one side of defogging body to the opposite side of defogging body, water smoke need pass through drying channel, and because drying channel is for buckling the passageway, the flow direction of gas can take place to buckle, and liquid particle in the gas is on one side inner wall of drying channel is acted on the striking at the inertial force, and the liquid particle of buckling along with gas can produce centrifugal force and get rid of under the centrifugal force effect on the opposite side inner wall of drying channel in addition to play the interception effect to water smoke.

Optionally, the defroster includes two whirl boards, the whirl board includes butt joint platform and a plurality of blade, and a plurality of blades are around the circumference lateral wall evenly distributed of butt joint platform, and the relative butt joint platform's of blade surface slope setting forms half-channel between the adjacent blade, and two butt joint platforms stack together, and the blade slope opposite direction on two whirl boards, half-channel one-to-one on two whirl boards just makes up into dry channel jointly.

Through adopting above-mentioned technical scheme, the preparation of single whirl board is more convenient to can detect, wash or even change two whirl boards respectively when overhauing, can enough reduce the preparation degree of difficulty, also can maintain more conveniently.

The application still provides a spray column of using defroster, adopts following technical scheme:

the utility model provides a spray tower, includes the tower body, the air outlet has been seted up at the tower body top, install the air-supply line on the lateral wall of tower body, install spray assembly in the tower body, spray assembly is higher than the air-supply line setting, still install the defroster in the tower body, the defroster is in spray assembly's top, the defroster is with separating into upper plenum and lower plenum in the tower body, dry passage on the defroster communicates upper plenum and lower plenum.

Through adopting above-mentioned technical scheme, accomplish the back that sprays to waste gas when spraying the subassembly, moist waste gas enters into the drying channel of defroster, because drying channel is the passageway of buckling, moist waste gas can take place the contact with drying channel's inner wall, little liquid particle in the waste gas just adheres to on drying channel's inner wall easily, will flow along drying channel's inner wall after a certain amount when little liquid particle assembles, thereby fall into the cavity of resorption again, thereby play the effect of dry waste gas, and can not cause the blockking to passing through of waste gas, make waste gas can normally discharge.

Optionally, the upper chamber is filled with a plastic packing ball.

Through adopting above-mentioned technical scheme, after the processing of defroster, the liquid granule in the waste gas is all cleared up by dry passage basically, and plastics filler ball has that the gas velocity is high, and the blade is many, and the resistance is little characteristics, and waste gas is when passing plastics filler ball, and gas passes through more easily, and remains ground liquid granule can contact the blade of plastics filler ball more easily, and plastics filler ball can further dry waste gas, makes the emission of waste gas safer.

Optionally, the spray assembly comprises a spray bracket and a water pump, one end of the spray bracket extends out of the tower body and is connected with the water pump, a plurality of nozzles are installed on the spray bracket, and the plurality of nozzles are uniformly distributed according to the cross section of the tower body.

Through adopting above-mentioned technical scheme, supply water by the water pump, spray the same water that transports of support, make a plurality of nozzles can spout water together to evenly distributed's nozzle can increase the coverage that wholly sprays, increases the throughput to waste gas as far as possible.

Optionally, the spraying support has two, and two spraying supports are arranged along the direction of height of tower body in proper order.

Through adopting above-mentioned technical scheme, increase the contact chance of water and waste gas, further improve the clear away effect to solid particle and soluble substance in the waste gas, make the harmful substance lower in the waste gas that discharges.

Optionally, install the water storage box on the bottom lateral wall of tower body, vertical interception has the filter screen in the water storage box, and the filter screen separates into first cavity and second cavity in with the water storage box, be connected with the fluid-discharge tube that communicates with tower body lower chamber on the lateral wall of first cavity, the outlet pipe has been seted up on the lateral wall of second cavity, the water inlet end connection of water pump is on the outlet pipe.

Through adopting above-mentioned technical scheme, the completion assembles in tower body bottom and gets into first cavity through the fluid-discharge tube with the water of waste gas contact, after the prefilter of filter screen again, during comparatively clean water enters into the second cavity, the water pump is with this part of water pumpingly to send the support that sprays again, realizes the cyclic utilization of water, reduces exhaust-gas treatment's cost.

Optionally, a drain pipe is further arranged on the side wall of the bottom of the tower body and communicated with the lower cavity, and valves are respectively arranged on the drain pipe and the liquid discharge pipe.

Through adopting above-mentioned technical scheme, after carrying out hydrologic cycle many times, the content of aquatic impurity is too much, closes the fluid-discharge tube this moment to open the blow off pipe, the circulating water flows out the tower body from the blow off pipe, adds clean water in the water storage box again, in order to ensure exhaust-gas treatment's quality.

Optionally, the end portion of the air inlet pipe in the tower body extends along the length direction of the end portion and is close to the inner wall of the tower body, the side wall of the air inlet pipe in the tower body is provided with an air outlet, and the air outlet is located on one side, away from the air outlet, of the air inlet pipe.

Through adopting above-mentioned technical scheme, the tower body is deepened to the tip of air-supply line, and waste gas can follow the air outlet and escape the air-supply line for waste gas can enter into the tower body more evenly, reduces the waste gas and the unilateral circumstances that rises appear, makes spray assembly's setting can be used more fully, improves the exhaust-gas treatment effect.

Optionally, install a plurality of access holes on the lateral wall of tower body, a plurality of access holes distribute along vertical direction in proper order, and every access hole coats and is stamped the glass board.

Through adopting above-mentioned technical scheme, set up the access hole and can make things convenient for the staff to overhaul the equipment in the tower body to a plurality of access holes can correspond the equipment of different positions in the tower body respectively, make the staff can more have a pertinence to overhaul corresponding equipment.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the bent drying channel is arranged, so that gas-liquid separation is realized, the gas is ensured to meet the emission standard, and the passing speed of the gas in the demister can be ensured;

2. the filter screen is arranged in the water storage tank, so that impurities in water are reduced, water is recycled, and the cost of waste gas treatment is reduced;

3. through seting up the gas outlet on the intake stack, the scope that makes waste gas discharge into the tower body is bigger, can contact with water more fully, plays better exhaust-gas treatment effect.

Drawings

Fig. 1 is a schematic structural view of the related art.

FIG. 2 is a schematic view of an overall configuration of a mist eliminator according to an embodiment of the present application.

FIG. 3 is an exploded view of a demister according to an embodiment of the present application.

Fig. 4 is a schematic view of the overall structure of the spray tower according to the embodiment of the present application.

Fig. 5 is a cross-sectional view of a spray tower of an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a spray rack according to an embodiment of the present application.

Description of reference numerals: 1. a tower body; 11. an air outlet; 12. an upper chamber; 13. a lower chamber; 14. an access hole; 2. an air inlet pipe; 21. an air outlet; 3. a spray assembly; 31. spraying a bracket; 32. a water pump; 33. a nozzle; 34. a return pipe; 4. a swirl plate; 41. a butting table; 42. a blade; 43. a half channel; 44. a frame; 5. a plastic filler ball; 6. a water storage tank; 61. filtering with a screen; 62. a first cavity; 63. a second cavity; 7. a liquid discharge pipe; 8. a blow-off pipe; 9. and (5) discharging a water pipe.

Detailed Description

The present application is described in further detail below with reference to figures 2-6.

The embodiment of the application discloses a demister. Referring to fig. 2, fig. 3, the defroster includes the defogging body, and in this application embodiment, the defogging body is modular structure, and the defogging body includes two whirl boards 4, and whirl board 4 includes butt platform 41, a plurality of blade 42 and annular frame 44, and butt platform 41 is located in frame 44, and butt platform 41 and frame 44 set up with one heart. The two ends of the blade 42 are respectively connected to the circumferential side wall of the abutment table 41 and the inner side wall of the rim 44. The plurality of blades 42 are uniformly distributed around the circumferential side wall of the abutment table 41, the blades 42 are disposed to be inclined with respect to the table surface of the abutment table 41, and the longitudinal direction of the blades 42 is disposed to be inclined from the radial direction of the abutment table 41. Two whirl boards 4's blade size, the interval is the same, and the tip orientation of butt joint platform is opposite on two whirl boards 4 during the installation, when two butt joint platform 41 superposes together, blade 42 on two whirl boards 4 is just relative from top to bottom, the lower limb line of the blade 42 of department upper strata and the coincidence of the last limb line that is in the blade 42 of lower floor that corresponds, half passageway 43 one-to-one on two whirl boards 4 promptly and intercommunication together, the half passageway 43 of upper and lower two-layer correspondence forms dry passageway jointly, dry passageway is the bending channel that cross sectional shape is the V type.

The embodiment of the application also discloses a spray tower. Referring to fig. 4 and 5, the spray tower comprises a tower body 1, wherein the tower body 1 is in a hollow cylindrical shape, and the side wall of the top of the tower body 1 is reduced towards the center to form a conical top. An air outlet 11 is formed in the center of the top of the tower body 1, the demister is installed in the tower body 1 and is close to the top of the tower body 1, and the demister divides the inner cavity of the tower body 1 into an upper chamber 12 and a lower chamber 13. Wherein, the upper chamber 12 is located above the lower chamber 13, and the upper chamber 12 is communicated with the air outlet 11. The upper chamber 12 is filled with plastic packing balls 5. The bottom of the tower 1 is stored with clean water to form a reservoir.

There are a plurality of plastic packing balls 5 in the upper chamber 12, and the diameter of the plastic packing balls 5 is typically 50 mm. A plurality of plastic packing balls 5 are stacked directly on the demister so that the maximum distance between the inner walls of the drying channels on the demister cannot exceed the diameter of the plastic packing balls 5. The air outlet is provided with a flange plate, the opening of the flange plate is blocked by a grating plate or a plastic net, and the gap of the grating plate or the meshes of the plastic net are also required not to allow the plastic packing ball 5 to pass through.

Referring to fig. 4 and 5, an air inlet pipe 2 is installed on the side wall of the bottom of the tower body 1, and the air inlet pipe 2 is close to the inner bottom surface of the tower body 1 but above the water reservoir. One end of the air inlet pipe 2 is positioned outside the tower body 1, and the other end of the air inlet pipe 2 penetrates through the side wall of one side of the tower body 1 and is close to the inner wall of the other side of the tower body 1 along the horizontal direction. The side wall of the air inlet pipe 2 in the tower body 1 is provided with an air outlet 21, and the air outlet 21 is positioned at one side of the air inlet pipe 2 departing from the air outlet 11. The air inlet pipe 2 can be communicated with the lower chamber 13 through an end opening in the tower body 1, and can also be communicated with the lower chamber 13 through an air outlet 11. When the air inlet pipe 2 is responsible for transmitting waste gas, a part of the waste gas is still discharged from the end opening of the air inlet pipe 2 in the tower body 1, but more waste gas is diffused into the lower chamber 13 from the air outlet 11, and the air is discharged through the air outlet 11, so that the distribution of the waste gas in the tower body 1 is more uniform, and the condition that the air is discharged from one side in the tower body 1 is avoided.

Referring to fig. 4 and 5, a spray assembly 3 is further mounted on the tower body 1, the spray assembly 3 includes two spray brackets 31 and a water pump 32, and the two spray brackets 31 are mounted between the demister and the air inlet pipe 2 at intervals from top to bottom. The water pump 32 is arranged outside the tower body 1, one end of the spray bracket 31 extends out of the tower body 1 and is connected with the water pump 32, and the water pump 32 extracts water from a reservoir at the bottom of the tower body 1 and supplies water to the two spray brackets 31 through water pipes. Of course, if the exhaust gas contains acidic substances, the water pump 32 adds an alkaline neutralizing agent to the water supplied from the shower holder 31. Referring to fig. 4, the spray frame 31 is provided with 7 nozzles 33, wherein six nozzles 33 form a circle around the central axis of the tower 1, and the remaining nozzles 33 are arranged at the center of the six nozzles 33. The other nozzles 33 between the two spray brackets 31 except the nozzles at the central position are arranged in a staggered manner, so that the spray coverage is increased, and the treatment effect on waste gas is improved.

Referring to fig. 4, a water storage tank 6 is mounted on the outer side wall of the bottom of the tower body 1, a filter screen 61 is vertically intercepted in the water storage tank 6, the filter screen 61 divides the interior of the water storage tank 6 into a first cavity 62 and a second cavity 63, a water outlet pipe 9 is arranged on the side wall of the second cavity 63, the end part of the water pump 32 far away from the spray support 31 is connected to the water outlet pipe 9, a return pipe 34 is further connected to the side wall of the water pipe connected to the water pump 32 and the spray support 31, the end part of the return pipe 34 far away from the water pipe is located right above the second cavity 63, and the return pipe 34 plays a role in adjusting the water supply amount of the water pump 32 to the spray support 31. The blow off pipe 8 and the fluid-discharge tube 7 have been seted up on the tower body 1 bottom, and blow off pipe 8, fluid-discharge tube 7 all communicate with the cistern, and all install the valve on blow off pipe 8 and the fluid-discharge tube 7. The blow-off pipe 8 communicates with external sewage treatment equipment, while the end of the discharge pipe 7 remote from the tower 1 is located in the first cavity 62.

Referring to fig. 4 and 5, four access holes 14 are installed on the side wall of the tower body 1, the four access holes 14 are sequentially arranged from top to bottom, and each access hole 14 is covered with a glass plate. The access hole 14 at the highest position is positioned on the conical top of the tower body 1, so that the staff can conveniently overhaul the vortex plate 4. The lowest position access hole 14 is arranged at the bottom of the tower body 1, so that the air inlet pipe 2 and the inner bottom surface of the tower body 1 can be conveniently overhauled by workers. The remaining two access holes 14 are respectively close to the two spray brackets 31, so that the spray brackets 31 at the corresponding positions can be conveniently overhauled.

The implementation principle of a spray tower in the embodiment of the application is as follows: waste gas enters the tower body 1 from the air inlet pipe 2, flows into the lower chamber 13 through the air outlet 11 and the opening at the end part of the air inlet pipe 2, and the air outlet 11 can be externally provided with a fan to extract air in the tower body 1, so that the waste gas flows upwards. The water pump 32 pumps the water in the water storage tank 6 to the spraying bracket 31, the water is atomized and sprayed out through the nozzle 33, the water mist meets the waste gas in the lower chamber 13, the water mist adsorbs solid particles and soluble substances in the waste gas, and meanwhile, part of the water mist is mixed in the waste gas.

During the process of the exhaust gas mixed with water mist entering the upper chamber 12 from the lower chamber 13, the exhaust gas firstly enters the half channel 43 of the cyclone plate 4 at the lower layer, the flow direction of the exhaust gas changes from vertical upward to moving obliquely upward along the inner wall of the half channel 43 at the upper part, and partial liquid particles in the exhaust gas collide on the inner wall of the half channel 43 at the upper part under the action of inertia force. Then, the waste gas enters the semi-channel 43 of the upper-layer cyclone plate 4 from the lower-layer cyclone plate 4, the moving direction of the waste gas is bent, and the residual liquid particles in the waste gas can generate centrifugal force and are thrown onto the inner wall of the semi-channel 43 of the upper-layer cyclone plate 4 under the action of the centrifugal force. The liquid particles in the exhaust gas are greatly reduced, and the remaining liquid particles are further intercepted by the plastic filler balls 5 when the exhaust gas passes through the upper chamber 12, so that the exhaust gas finally discharged from the gas outlet 21 contains no or trace liquid particles, and the emission of the exhaust gas meets the standard. After the fine liquid particles are concentrated on the inner wall of the half channel 43 and form water drops, the water drops fall into the tower body 1 below the demister due to the action of gravity. In addition, the liquid particles trapped by the plastic filler balls 5 gradually form liquid drops, flow to the demister and finally drop into the tower body 1 below along the drying channel.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A demister, characterized by: including the defogging body, a plurality of dry passageways have been seted up on the defogging body, the both sides lateral wall of dry passageway intercommunication defogging body, dry passageway is the passageway of buckling.

2. A demister as set forth in claim 1 wherein: the defogging body includes two whirl boards (4), whirl board (4) are including butt joint platform (41) and a plurality of blade (42), a plurality of blade (42) are around the circumference lateral wall evenly distributed of butt joint platform (41), and the surface slope setting of blade (42) butt joint platform (41) relatively, form half passageway (43) between adjacent blade (42), two butt joint platforms (41) stack together, blade (42) slope opposite direction on two whirl boards (4), half passageway (43) one-to-one on two whirl boards (4) just makes up into dry passageway jointly.

3. The utility model provides a spray tower, includes tower body (1), air outlet (11) have been seted up at tower body (1) top, install air-supply line (2) on the lateral wall of tower body (1), install in tower body (1) and spray assembly (3), spray assembly (3) are higher than air-supply line (2) and set up its characterized in that: still install the defroster of claim 1 or 2 in tower body (1), the defroster is in the top that sprays subassembly (3), the defroster is divided into chamber (12) and lower chamber (13) in with tower body (1), chamber (12) and lower chamber (13) are gone up in the dry passage intercommunication on the defroster.

4. A spray tower according to claim 3, wherein: and the upper cavity (12) is filled with a plastic filler ball (5).

5. A spray tower according to claim 3, wherein: spray subassembly (3) including spraying support (31) and water pump (32), the one end that sprays support (31) extends to tower body (1) outside and is connected with water pump (32), spray and install a plurality of nozzles (33) on support (31), a plurality of nozzles (33) are according to the cross section evenly distributed of tower body (1).

6. A spray tower according to claim 5, wherein: the number of the spraying supports (31) is two, and the two spraying supports (31) are sequentially arranged along the height direction of the tower body (1).

7. A spray tower according to claim 5, wherein: install water storage tank (6) on the bottom lateral wall of tower body (1), vertical interception has filter screen (61) in water storage tank (6), and filter screen (61) divide into first cavity (62) and second cavity (63) in with water storage tank (6), be connected with on the lateral wall of first cavity (62) with tower body (1) down fluid-discharge tube (7) of cavity (13) intercommunication, outlet pipe (9) have been seted up on the lateral wall of second cavity (63), the end connection that intakes of water pump (32) is on outlet pipe (9).

8. A spray tower according to claim 7, wherein: the tower is characterized in that a drain pipe (8) is further arranged on the side wall of the bottom of the tower body (1), the drain pipe (8) is communicated with the lower cavity (13), and valves are respectively arranged on the drain pipe (8) and the liquid discharge pipe (7).

9. A spray tower according to claim 3, wherein: the end part of the air inlet pipe (2) in the tower body (1) extends along the length direction and is close to the inner wall of the tower body (1), the side wall of the air inlet pipe (2) in the tower body (1) is provided with an air outlet (21), and the air outlet (21) is positioned on one side of the air inlet pipe (2) deviating from the air outlet (11).

10. A spray tower according to claim 3, wherein: install a plurality of access holes (14) on the lateral wall of tower body (1), a plurality of access holes (14) distribute in proper order along vertical direction, and every access hole (14) coats and is stamped the glass board.