CN107376393B

CN107376393B - Liquid fog interception and recovery device

Info

Publication number: CN107376393B
Application number: CN201710561230.9A
Authority: CN
Inventors: 解传东; 吴洪郛; 赵亮亮
Original assignee: SHIJIAZHUANG BANKNOTE PRINTING CO Ltd
Current assignee: SHIJIAZHUANG BANKNOTE PRINTING CO Ltd
Priority date: 2017-07-11
Filing date: 2017-07-11
Publication date: 2023-02-03
Anticipated expiration: 2037-07-11
Also published as: CN107376393A

Abstract

The invention discloses a liquid mist intercepting and recycling device, which belongs to the field of waste gas recycling and treatment and comprises a cylindrical shell, wherein a spraying assembly is arranged at the upper end of the cylindrical shell, a lower cover plate with an air outlet arranged at the center is arranged at the lower end of the cylindrical shell, an air inlet is arranged on the side surface of the cylindrical shell, a spraying device and an annular circuitous blocking air duct are sequentially arranged in an annular closed area between the upper cover plate and the lower cover plate in the cylindrical shell from top to bottom, an inlet of the annular circuitous blocking air duct is opposite to the air inlet of the cylindrical shell, and an outlet of the annular circuitous blocking air duct is opposite to the center of the cylindrical shell and is communicated with the air outlet of the cylindrical shell. The invention has good liquid mist condensation effect and obviously improved recovery efficiency.

Description

Liquid fog interception and recovery device

Technical Field

The invention relates to a liquid mist intercepting and recycling device, and belongs to the field of treatment and recycling of waste gas containing mist drops.

Background

In the electroplating production process, when a large amount of gas generated on the electrode escapes, chromic acid particles are carried out, and chromic acid mist is formed. The generation of waste gas not only affects the working environment of a production workshop, but also pollutes the surrounding environment, and in the world, hexavalent chromium is listed as one of 8 chemical substances with the greatest harm to human bodies and is a well-known carcinogenic substance. In China, chromium-containing wastes are listed in the national records of dangerous wastes. Therefore, the generated exhaust gas needs to be treated. The chromium fog recoverer is the most commonly used chromium fog recoverer in the field of chromium fog recovery at present, the chromium fog recoverer usually adopts plastic grid balls filled or is provided with fog blocking strips to realize the recovery treatment of chromium fog, the areas of a chromium fog filling layer and the fog blocking strips are small, the movement route of chromium fog in the chromium fog recoverer is short, the chromium fog is not completely recovered, a considerable part of chromium fog is still discharged into the air, and the chromium fog recoverer can bring serious health problems to workers while polluting the environment.

Disclosure of Invention

The invention aims to solve the technical problem of providing a liquid mist intercepting and recycling device which has the advantages of large flux, pressure reduction, wide operation elasticity, difficulty in blockage, stable efficiency, easiness in maintenance, good intercepting and recycling effects and the like.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a liquid fog interception recovery unit, including the cylindricality shell, the shell upper end is sealed there is the upper cover plate, the shell lower extreme is provided with the lower apron that the center set up the gas outlet, the shell side is provided with the air inlet, by last circuitous separation wind channel of spray set and annular that has set gradually under to in the annular closed region between upper cover plate and the lower apron in the shell, the import in the circuitous separation wind channel of annular is relative with the shell air inlet, the export in the circuitous separation wind channel of annular is relative with the shell center and communicates with each other with the shell gas outlet.

The technical scheme of the invention is further improved as follows: the annular circuitous obstructing air duct comprises air duct groups which are arranged in two groups of symmetrical fan-shaped areas at the left and the right, the air duct group comprises an air duct I arranged along the inner edge of the fan-shaped area, an air duct II (8230) \ 8230 @ which is arranged along the inner edge of the air duct I, and an air duct N + I arranged along the inner edge of the air duct N.

The technical scheme of the invention is further improved as follows: the inlet and outlet directions of each air duct of the air duct group are consistent.

The technical scheme of the invention is further improved as follows: the width of each air duct of the air duct group is 2-12 mm.

The technical scheme of the invention is further improved as follows: each air channel in the air channel group is enclosed by two adjacent curved plates, a groove is formed in the lower cover plate, and the curved plates are inserted into the groove.

The technical scheme of the invention is further improved as follows: the upper part of the annular circuitous separation air duct is provided with a spraying device, the upper end of each curved plate is in close contact with the spraying device, and a water inlet of the spraying device is arranged on the upper cover plate.

The technical scheme of the invention is further improved as follows: and a water collecting water gap is arranged on the lower cover plate of the shell and is opposite to the outlet of the annular circuitous blocking air duct.

Due to the adoption of the technical scheme, the invention has the technical progress that:

the shell is internally provided with the annular roundabout blocking air duct, the inlet of the annular roundabout blocking air duct is opposite to the air inlet of the shell, the outlet of the annular roundabout blocking air duct is opposite to the center of the shell and is communicated with the air outlet of the shell, liquid mist is cooled and condensed in the annular roundabout blocking air duct, the liquid mist is condensed and liquefied, meanwhile, the spraying device is arranged above the annular roundabout blocking air duct, condensed water drops bonded on the annular roundabout blocking air duct are washed, and a large amount of liquid is guaranteed to be recovered.

The annular roundabout blocking air duct comprises air duct groups in left and right symmetrical fan-shaped areas, wherein the air duct groups comprise air ducts I arranged along inner edges of the fan-shaped areas, air ducts II \8230, air ducts N + I arranged along inner edges of the air ducts I, air ducts N + I arranged along inner edges of the air ducts N, the length of each air duct in the air duct groups is approximate to that of each air duct, it is guaranteed that gas entering the air duct groups from inlets of the annular roundabout blocking air ducts is always approximately the same distance and finally almost simultaneously comes out from outlets of the annular roundabout blocking air ducts, pressure difference is avoided, meanwhile, the total length of the air duct groups is guaranteed to be longest by the arrangement, the arrangement recycling effect is the best, and the condensation effect is the best. The wind channel is the curved surface structure, and chromium fog can not be straight when passing through in the wind channel along with wind pass the wind channel, but can collide repeatedly on the wind channel lateral wall, similar refraction's process repeatedly, and make the route of chromium fog in the wind channel prolonged once more, the width in every wind channel is 2 ~ 12mm simultaneously, the wind channel width neither can too big nor undersize, the liquid fog and the lateral wall at too big back center can't contact, too little can form the windage, influence the solidification effect.

The cross sectional area of the shell air inlet is consistent with the cross sectional area of the air outlet at the lower end of the shell, and the fog entering the shell almost simultaneously comes out of the shell, so that the width of the inlet and the width of the outlet are consistent, the gas is prevented from being blocked at the outlet, and the running stability and smoothness of the device are guaranteed.

The wind channel is enclosed city by two curved plates, is provided with the slot on the apron down, and the titanium board is inserted in the slot, guarantees that the installation is more convenient with the dismantlement, and it is more convenient to maintain.

The lower cover plate of the shell is provided with a water collecting water gap which is opposite to the outlet of the annular circuitous separation air duct, and the water collecting water gap is arranged to prevent the air from the air outlet from bringing the water drops condensed from the chromium fog into the next-stage device, so that the condensed water drops of the chromium fog can be ensured to fall into a collecting pool at the lower end of the device. Gather water mouth of a river upper end and lap connection down, the lower extreme is inside shrink, avoids gathering the water mouth of a river and goes up large tracts of land separately and drip, and the water droplet quality is easily disturbed by external factors such as wind lighter, influences the route of water droplet whereabouts, and the structure of lower extreme shrink can guarantee that the water droplet converges into rivers whereabouts, prevents to blow and spatters the phenomenon and takes place, ensures to retrieve smoothly.

Spray set includes the dispersion impeller, the dispersion impeller includes dispersion hanging wall and dispersion lower wall of laminating from top to bottom, set up ring channel and radial channel on the dispersion hanging wall, set up parallel channel on the dispersion lower wall, parallel channel is the trapezium structure that upper end width is less than the lower extreme width, set up trapezoidal stifled in parallel channel, trapezoidal stifled and be provided with the gap that supplies the shower water to pass through between two sides of parallel channel, rivers that get into by the upper cover plate water inlet carry out the homodisperse through the ring channel and the radial channel of dispersion hanging wall, the dispersed rivers are dispersed through the gap between the parallel channel of dispersion lower wall and trapezoidal stifled, realize rivers furthest is even and the most extensive distribution, guarantee that every wind channel can both be sprayed and cover in the wind channel crowd, guarantee the spray effect. The trapezoid plug is connected to the dispersion upper disc through the bolt, the size of a gap between the parallel channel and the trapezoid plug is changed through rotating the bolt to adjust the spraying water pressure and the water quantity, and the control is more flexible.

Drawings

FIG. 1 is a schematic view of the assembly of the housing and the annular circuitous blocking duct of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a bottom view of the present invention;

FIG. 4 is a schematic view of the structure of the air duct group in the sector area of the present invention;

FIG. 5 is a schematic view of the structure of the dispersion impeller of the present invention;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a bottom view of FIG. 5;

FIG. 8 is a schematic view of the structure of the parallel channel in the dispersion plate matching with the trapezoidal plug;

FIG. 9 is a schematic view of a water trap;

FIG. 10 is another schematic view of the water trap;

the device comprises a shell 1, a shell 2, an upper cover plate 3, a lower cover plate 4, an air outlet 5, an air inlet 6, a water inlet 7, a dispersion disc 7-1, a dispersion upper disc 7-2, a dispersion lower disc 7-3, a circular channel 7-4, a radial channel 7-5, a parallel channel 8, a water collecting water gap 9 and a trapezoidal plug.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

as shown in fig. 1 to 10, a mist collision condensing device comprises a cylindrical shell 1, an upper cover plate 2 is sealed at the upper end of the shell 1, a lower cover plate 3 is arranged at the lower end of the shell 1, a circular air outlet 4 is arranged at the center of the lower cover plate 3, a circular air inlet 5 is arranged on the side surface of the shell 1, and the cross-sectional area of the air inlet 5 is the same as that of the air outlet 4. A spraying device and an annular circuitous separation air duct are sequentially arranged in an annular closed area between an upper cover plate 2 and a lower cover plate 3 in a shell 1 from top to bottom. The inlet of the annular roundabout blocking air duct is opposite to the air inlet 5 of the shell 1, and the outlet of the annular roundabout blocking air duct is opposite to the center of the shell 1 and communicated with the air outlet 4 of the shell 1. The fog enters the condensing device of the invention and then is cooled and condensed in the annular circuitous blocking air duct, the fog can be condensed and liquefied, and meanwhile, the spraying device washes condensed water drops adhered on the annular circuitous blocking air duct, thereby ensuring the recovery of a large amount of liquid.

The 2 centers in upper cover plate are provided with water inlet 6, and water inlet 6 is used for being connected with the water source and supplies water for spray set, and spray set is including setting up dispersion impeller 7 between 2 and the circuitous separation wind channels of annular upper cover plate, 7 upper ends of dispersion impeller and upper cover plate in close contact with, lower extreme and wind channel crowd top in close contact with, every curved plate upper end and spray set in close contact with promptly. The dispersion disc 7 comprises an upper dispersion disc 7-1 and a lower dispersion disc 7-2, the upper dispersion disc 7-1 and the lower dispersion disc 7-2 are vertically attached, and the upper dispersion disc 7-1 is provided with a plurality of circular channels 7-3 penetrating through the thickness of the upper dispersion disc and a radial channel 7-4 penetrating through the thickness of the upper dispersion disc 7-1 and arranged along the radial direction of the upper dispersion disc 7-1; the center of the lower dispersing disc 7-2 is a solid disc, the size of the solid disc is consistent with that of the air outlet 4 of the lower cover plate 3, a plurality of parallel channels 7-5 which are arranged in parallel and penetrate through the thickness of the lower dispersing disc 7-2 are arranged on the periphery, and the parallel channels 7-5 are vertical to the radial channels 7-4. The parallel channel 7-5 is a trapezoidal structure with the upper end smaller than the lower end, a trapezoidal plug 9 is arranged in the parallel channel 7-5, the trapezoidal plug 9 is connected to the solid position on the upper dispersion disc 7-1 without the circular channel 7-3 and the radial channel 7-4 through a bolt, and a gap for passing through spraying water is arranged between the trapezoidal plug 9 and two side faces of the parallel channel. The concrete connection mode can be that a threaded hole is formed in the upper end of the trapezoidal plug, a through hole is formed in the position, corresponding to the parallel channel 7-5, of the upper dispersing disc 7-1, one end of a bolt is connected into the threaded hole of the trapezoidal plug 9, the other end of the bolt penetrates through the through hole in the upper dispersing disc 7-1, a nut is arranged at the upper end of the upper dispersing disc 7-1 to fix the bolt, and a plurality of bolts can be uniformly arranged. During spraying operation, water flow entering from the water inlet 6 of the upper cover plate 2 is quickly diffused into the annular channel 7-3 through the radial channel of the upper dispersion disc 7-1, and water flow of the annular channel 7-3 is sprayed through the gap between the parallel channel 7-5 of the lower dispersion disc 7-2 and the trapezoidal plug, so that the water flow is distributed uniformly and widely to the maximum extent, each air channel in the air channel group can be sprayed and covered, and the spraying effect is guaranteed. The spraying device can also be another kind of structure, the spraying device can include a cylinder device that includes the cavity, be provided with the entry with the cavity intercommunication in cylinder device upper end, the entry is relative with the water inlet 6 of the setting at upper cover plate 2 center, the cylinder device lower extreme is provided with a plurality of nozzles, during the operation of spraying, rivers that get into by the water inlet 6 of upper cover plate 2 get into the cavity of cylinder device through the entry in, after the water pressure reaches certain degree in the cavity with rivers through the nozzle downstream jet, realize that every wind channel in the wind channel crowd goes up can both to be sprayed and cover. Therefore, the spraying device can be various, and in practice, the spraying forms such as strip seams, nozzles, pinholes and the like are selected according to the density degree of the annular circuitous blocking air duct.

The annular circuitous separation air duct comprises air duct groups which are arranged at the left and right two groups of symmetry, and the air duct groups are arranged in fan-shaped areas of the left and right two groups of symmetry because the air outlet 4 is arranged at the center of the lower cover plate 3 and the air duct groups avoid the position of the air outlet 4. The air duct group comprises an air duct I arranged along the inner edge of the fan-shaped area, an air duct II (8230) \ 8230 @ which is arranged along the inner edge of the air duct I, and an air duct N + I arranged along the inner edge of the air duct N. The inlet and outlet directions of each air duct of the air duct group are consistent, the inlet of the air duct I is positioned at the most edge position of the inlet of the annular circuitous blocking air duct, the inlet of the air duct II is closer to the center of the inlet of the annular circuitous blocking air duct than the inlet of the air duct I, and the like. The arrangement ensures that the length of each air channel in the air channel group is approximate, ensures that the gas entering the air channel group from the inlet of the annular circuitous separation air channel is always nearly the same distance and finally almost simultaneously comes out from the outlet of the annular circuitous separation air channel, avoids generating pressure difference, and simultaneously ensures that the total length of the air channel group reaches the longest, and the arrangement has the best recovery effect and the best condensation effect. The wind channel is the curved surface structure, and chromium fog can not straight pass the wind channel when passing through in the wind channel along with wind, but can collide repeatedly on the wind channel lateral wall, similar refraction's process repeatedly, and make the route of chromium fog in the wind channel prolonged once more, the width in every wind channel is 2 ~ 12mm simultaneously, and the wind channel width neither can too big nor undersize, and the chromium fog at center and lateral wall can't contact after too big too little, can form the windage too little, influences the solidification effect. Every wind channel in the wind channel crowd is enclosed city by two adjacent curved plates, is provided with thickness and curved plate thickness assorted board groove on the apron 3 down, and the curved plate inserts in the board groove. Meanwhile, the material of the curved plate is adjusted according to the recycled liquid fog components. When the chromium fog is recycled, the curved plate can be made of various materials such as a titanium plate and a PVC plate, the preferred thickness is 0.3mm of a pure titanium plate, the titanium plate is lighter and thinner, the occupied space is reduced, more air channels are distributed to the greatest extent, and the condensation efficiency is higher. The curved plate can be preferably subjected to surface treatment such as corrosion prevention, sanding, wrinkling, raising and coating of an oleophilic and hydrophilic layer, so that the adsorption and interception capabilities are improved.

The lower cover plate 3 of the shell 1 is provided with a water collecting water gap 8, the water collecting water gap 8 is opposite to the outlet of the annular circuitous separation air duct, and the water collecting water gap 8 prevents the air from the air outlet 4 from bringing the water drops formed by the coagulation of the chromium fog into a next-stage device, so that the chromium fog coagulated water drops are ensured to fall into a collecting pool at the lower end of the device. Gather water mouth of a river 8 upper end and be connected with apron 3 down, the lower extreme can be made and can also be made the binding off structure of inside contraction with the sheet structure that the upper end is unanimous with the lower extreme, the inside contraction of lower extreme forms the mouth of a river promptly, the binding off structure avoids dripping separately by a large scale on the water mouth of a river 8, the water droplet quality is disturbed by external factors such as wind easily, influences the route that the water droplet falls, the structure of lower extreme shrink can guarantee that the water droplet converges into rivers whereabouts, prevent to blow and spatter the phenomenon and take place, ensures to retrieve smoothly.

Claims

1. The utility model provides a liquid fog interception recovery unit which characterized in that: the device comprises a cylindrical shell (1), wherein an upper cover plate (2) is sealed at the upper end of the shell (1), a lower cover plate (3) with an air outlet (4) at the center is arranged at the lower end of the shell (1), an air inlet (5) is arranged on the side surface of the shell (1), a spraying device and an annular roundabout blocking air duct are sequentially arranged in an annular sealing area between the upper cover plate (2) and the lower cover plate (3) in the shell (1) from top to bottom, an inlet of the annular roundabout blocking air duct is opposite to the air inlet (5) of the shell (1), and an outlet of the annular roundabout blocking air duct is opposite to the center of the shell (1) and is communicated with the air outlet (4) of the shell (1);

the annular roundabout blocking air duct comprises air duct groups arranged in left and right symmetrical fan-shaped areas, wherein the air duct groups comprise an air duct I arranged along the inner edge of the fan-shaped area, an air duct II \ 8230arranged along the inner edge of the air duct I, an air duct N + I arranged along the inner edge of the air duct N; and a water collecting water gap (8) is formed in the lower cover plate (3) of the shell (1), and the water collecting water gap (8) is opposite to the outlet of the annular circuitous blocking air duct.

2. The liquid mist intercepting and recycling device according to claim 1, wherein: the inlet and outlet directions of each air duct of the air duct group are consistent.

3. The liquid mist intercepting and recycling device of claim 1, wherein: the width of each air duct of the air duct group is 2-12 mm.

4. The liquid mist intercepting and recycling device of claim 1, wherein: each air channel in the air channel group is formed by enclosing two adjacent curved plates, a groove is formed in the lower cover plate (3), and the curved plates are inserted into the grooves.

5. The liquid mist intercepting and recycling device of claim 4, wherein: and a spraying device is arranged at the upper part of the annular circuitous separation air duct, the upper end of each curved plate is in close contact with the spraying device, and a water inlet (6) of the spraying device is arranged on the upper cover plate (2).