CN217594208U - Washing device for compound fertilizer tail gas particles - Google Patents

Abstract

The utility model relates to a compound fertilizer tail gas treatment technical field, specifically say a washing device of compound fertilizer tail gas particulate matter, including the gravity settling chamber, one side of gravity settling chamber is equipped with the washing room, gravity settling chamber and washing room are through the pipeline intercommunication, the inner chamber bottom of gravity settling chamber is equipped with cyclone, cyclone communicates two feed inlets, two feed inlets all communicate the separation chamber through the pipeline, be equipped with the spliced pole in the separation chamber, the spliced pole twines the connection spiral pipe; the top of the separation cavity is provided with a discharge hole which is communicated with the separation cavity and the two gas conveying pipes, the bottom of the washing chamber is provided with a plurality of communicated pressurizing pipelines, the pressurizing pipelines are provided with a plurality of horizontal spray heads, and a circulating water tank is arranged below the pressurizing pipelines; the utility model discloses a reform transform into the gravity settling chamber and do wet two districts, provide a compound fertilizer tail gas processing apparatus that the effect is better.

Description

Washing device for compound fertilizer tail gas particles

Technical Field

The utility model relates to a compound fertilizer's tail gas treatment technical field specifically says a washing device of compound fertilizer's tail gas particulate matter.

Background

The compound fertilizer is a chemical fertilizer containing two or more nutrient elements and plays an important role in high and stable yield of crops, a spraying granulation technology is adopted in a compound fertilizer workshop in the process of producing the compound fertilizer, the tail gas components are complex and mainly contain floating dust, dust and fine particles, the main components of the gas are a large amount of toxic and pungent gas caused by fire coal and waste gas generated in the production process of the compound fertilizer, the main components of the gas are H2S, SO2, SO3, NO2, NH3, H2O (steam) and the like, and the tail gas is discharged into the atmosphere without being purified to cause environmental pollution and influence the body health of surrounding residents.

In compound fertilizer production, exhaust tail gas composition includes ammonia and sulfur dioxide etc, particulate matter in present granule method compound fertilizer apparatus for producing technology tail gas adopts cyclone separation usually, gravity subsides and cyclone tower washing mode that combines together handles, the tail gas evacuation afterwards, general cyclone tower washing is gaseous phase from bottom to top and liquid phase top-down, reverse washing, but because the velocity of wind is high in the cyclone tower, gas-liquid contact time is short and area of contact is little, the washing effect is not good, the liquid foam of part smuggleing secretly the particulate matter gets into the chimney along with tail gas, cause tail gas particulate matter to discharge not up to standard, tail gas after the deceleration in the chimney simultaneously, the liquid foam of part smuggleing secretly the particulate matter subsides and forms mud in the chimney, the mud clearance degree of difficulty is big, tail gas particulate matter discharges not up to standard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a washing device of compound fertilizer tail gas particulate matter to solve the problem that proposes in the above-mentioned background art.

The technical scheme of the utility model is that: a washing device for compound fertilizer tail gas particles comprises a gravity settling chamber, wherein feed inlets are respectively formed in the top and the side wall of the gravity settling chamber, a cyclone separator is arranged at the bottom of an inner cavity of the gravity settling chamber, two gas pipes are arranged at the top of the cyclone separator and are communicated with a washing chamber, two gas suction ports are formed in the top of the cyclone separator and are communicated with a separation cavity, a connecting column is arranged in the separation cavity and is wound and connected with a spiral pipe; the top of the separation cavity is provided with a discharge hole, the discharge hole is communicated with the separation cavity and the two gas pipes, one side of the gravity settling chamber is provided with a washing chamber, the bottom of the washing chamber is provided with a plurality of communicated pressure boost pipelines, a plurality of vertical upward adsorption columns penetrate through the pressure boost pipelines, a plurality of horizontally arranged spray heads are arranged on the pressure boost pipelines, the plurality of spray heads are fixedly connected with the pressure boost pipelines, and a circulating water tank is arranged below the pressure boost pipelines; and a filter screen plate is arranged at the top of the washing chamber, and an exhaust pipe is communicated above the filter screen plate.

Furthermore, a backflow prevention sealing ring is arranged at the communication position of the gas pipe between the gravity settling chamber and the washing chamber.

Further, the spray head adopts a vortex dispersion type spray head.

Furthermore, the inner walls of the gravity settling chamber and the washing chamber are both provided with anticorrosive coatings, and C30 concrete is poured on the ground.

Further, the filter screen plate is a multi-layer honeycomb activated carbon plate.

Furthermore, one side of the exhaust pipe is provided with a one-way valve, and the top of the exhaust pipe is provided with an adsorption cover.

The utility model discloses an improve and provide a washing device of compound fertilizer tail gas particulate matter here, compare with prior art, have following improvement and advantage:

one is as follows: the utility model discloses be divided into two whole devices, set up to dry district and wet district, dry district is the gravity settling chamber, and wet district is the washing chamber, and the fertile tail gas particulate matter of chemical combination settles through gravity and cyclone separation after, has got rid of most tail gas particulate matter, and remaining tail gas is managed once and is managed to the washing chamber gas-liquid washing once more, and the effect is got rid of to tail gas is better.

The second step is as follows: the utility model discloses the device inner wall uses specific material, and the inner wall of gravity settling chamber and washing room all adopts anticorrosive coating, and the C30 concrete is pour on ground, prevents the corruption of chemical residue in the chemical fertilizer tail gas particulate matter to the device, extension device life.

Drawings

The invention is further explained below with reference to the figures and examples:

fig. 1 is a schematic front structural view of the present invention;

FIG. 2 is a schematic perspective view of the pressurized pipeline of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 1;

fig. 4 is a schematic diagram of the material of the filter screen plate of the present invention.

Description of reference numerals: 1. a gravity settling chamber; 2. a washing chamber; 3. a cyclone separator; 4. a feed inlet; 5. a separation chamber; 6. connecting columns; 7. a spiral tube; 8. a discharge port; 9. a gas delivery pipe; 10. a booster duct; 11. an adsorption column; 12. a spray head; 13. a circulating water tank; 14. a filter screen plate; 15. an exhaust pipe; 16. an adsorption cover; 17. an air suction port; 18. a one-way valve.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings 1 to 4, which clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a washing device of compound fertilizer tail gas particulate matter through improving here, as shown in fig. 1-4, including gravity settling chamber 1, feed inlet 4 has been seted up respectively to the top and the lateral wall of gravity settling chamber 1, the inner chamber bottom of gravity settling chamber 1 is equipped with cyclone 3, cyclone 3's top is equipped with two gas-supply pipes 9, two gas-supply pipes 9 communicate washing chamber 2, cyclone 3's top is seted up two induction ports 17, two induction ports 17 all communicate separation chamber 5, be equipped with spliced pole 6 in the separation chamber 5, spliced pole 6 twines and connects spiral pipe 7; a discharge port 8 is formed in the top of the separation cavity 5, the discharge port 8 is communicated with the separation cavity 5 and two gas conveying pipes 9, a washing chamber 2 is arranged on one side of the gravity settling chamber 1, a plurality of communicated pressure boost pipelines 10 are arranged at the bottom of the washing chamber 2, a plurality of vertically upward adsorption columns 11 penetrate through the pressure boost pipelines 10, a plurality of horizontally arranged spray heads 12 are arranged on the pressure boost pipelines 10, the spray heads 12 are fixedly connected with the pressure boost pipelines 10, and a circulating water tank 13 is arranged below the pressure boost pipelines 10; a filter screen plate 14 is arranged at the top of the washing chamber 2, and an exhaust pipe 15 is communicated above the filter screen plate 14; the particulate matter tail gas reaches the gravity settling chamber 1 through the feed inlet 4, the particulate matter tail gas naturally settles under the action of self gravity, thus separate with the air current, the gravity settling can effectively remove larger particulate matter, meanwhile, the settled tail gas enters the cyclone separator 3 from the air suction port 17, the air current is in spiral motion in the separation cavity 5 under the guiding action of the spiral pipe 7, the particulate matter with high density, no matter liquid drop or dust particle, can be thrown to the periphery, lose inertia after touching the cylinder wall, then fall down along the cylinder wall under the action of gravity, and the clean gas without impurities can form vortex, and flows to the washing chamber 2 along the gas pipe 9 through the discharge port 8; several pressurizing showers and nozzles 12 are laid on the ground of the washing chamber 2, the washing circulating water in the circulating water tank 13 is pressurized by the pressurizing pipes and then sprayed from bottom to top by the nozzles 12 and dispersed in the washing area, the tail gas of the compound fertilizer particles and the water flow are in reverse contact with the gas and the liquid, the spraying liquid is sprayed from bottom to top to the back falling process and contacts with the tail gas again, thereby increasing the contact area, the pressurizing pipeline 10 is provided with a plurality of vertical upward adsorption columns 11 which can adsorb the falling tail gas in time, the liquid foam carrying the particles is directly settled in the washing chamber 2 and flows back to the circulating water tank 13 along with the washing liquid, and the washed tail gas is discharged from the exhaust pipe 15 through the filter screen plate 14.

Specifically, a backflow prevention sealing ring is arranged at the communication position of a gas pipe 9 between the gravity settling chamber 1 and the washing chamber 2 so as to prevent the phenomenon of backward flowing of tail gas and ensure that the treated tail gas is not polluted again.

Specifically, the nozzle 12 is a vortex dispersive nozzle 12, the vortex dispersive nozzle 12 is a nozzle 12, and the vortex dispersive nozzle 12 enables the upward spraying water column to have a wider spraying area and a larger upward impulsive force.

Specifically, the inner walls of the gravity settling chamber 1 and the washing chamber 2 are both provided with anticorrosive coatings, C30 concrete is poured on the ground, chemical residues in compound fertilizer tail gas particles are prevented from corroding the device, and the service life of the device is prolonged.

Specifically, the filter screen plate 14 is a multi-layer honeycomb activated carbon plate, and the filter screen plate 14 is a multi-layer honeycomb activated carbon plate, so that the residual tail gas can be further effectively adsorbed.

Specifically, one side of the exhaust pipe 15 is provided with a one-way valve 18, the top of the exhaust pipe 15 is provided with an adsorption cover 16, the one-way valve 18 can prevent the airflow from being directly exhausted from the adsorption cover 16 without being washed, and the adsorption cover 16 can adsorb odor of the exhausted airflow.

The working principle is as follows: the device is divided into a dry area and a wet area; the dry area is a gravity settling chamber 1, the wet area is a washing chamber 2, the particulate tail gas reaches the gravity settling chamber 1 through two feed inlets 4, the particulate tail gas naturally settles under the action of self gravity, so as to be separated from the gas flow, the gravity settling can effectively remove larger particulate matters, the gravity settling structure is simple, the price is low, the energy consumption is low, the gravity settling structure is suitable for purifying dust with large density and coarse particle size, the removal efficiency can reach 60% -80% for dust with 30-50 mu m, meanwhile, the settled tail gas flows into the cyclone separator 3 from the air suction port 17, the gas flow spirally moves in the separation cavity 5 under the guiding action of the spiral pipe 7, the particulate matters with large density, such as liquid drops and dust particles, are thrown to the periphery, the inertia is lost after contacting the cylinder wall, then the gas falls along the cylinder wall under the action of gravity, and the clean gas without impurities can form a vortex flow to the washing chamber 2 along the gas pipe 9 through the discharge port 8; a backflow prevention sealing ring is arranged at the communication position of a gas pipe 9 between a gravity settling chamber 1 and a washing chamber 2 to prevent tail gas backflow, a plurality of pressurizing spray pipes and spray nozzles 12 are laid on the ground of the washing chamber 2, washing circulating water in a circulating water tank 13 is pressurized by the pressurizing spray pipes and then is sprayed from bottom to top and dispersed in a washing area by the spray nozzles 12, compound fertilizer particle tail gas and water flow are in reverse contact, spray liquid is sprayed from bottom to top in the falling process and then contacts with the tail gas again, so that the contact area is increased, a plurality of vertical upward adsorption columns 11 are arranged on a pressurizing pipeline 10, the tail gas falling downwards can be adsorbed timely, meanwhile, as the flow area of the washing chamber 2 is large, the wind speed is low, the gas-liquid contact time is longer, the largest tail gas washing effect can be achieved, liquid foam carrying particulate matters directly settles in the washing chamber 2, flows back to the circulating water tank 13 along with the washing liquid, the washed tail gas passes through a top filter screen plate 14 of the washing chamber 2 to be discharged outwards, the filter screen plate 14 is a plurality of layers of honeycomb activated carbon plates, tail gas residues can be effectively adsorbed, one side of an exhaust pipe 15 is provided with a one-way, the one-way valve 18 can completely prevent the gas flow from being discharged from being completely, and an adsorption cover 16 is arranged on the top of the adsorption tank, and an adsorption cover 16, and a gas can prevent peculiar smell being discharged from being discharged to directly discharged from being arranged, and a gas flow cover 16.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.

Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. The utility model provides a washing device of compound fertilizer tail gas particulate matter which characterized in that: the device comprises a gravity settling chamber (1), wherein feed inlets (4) are respectively formed in the top and the side wall of the gravity settling chamber (1), a cyclone separator (3) is arranged at the bottom of an inner cavity of the gravity settling chamber (1), two gas pipes (9) are arranged at the top of the cyclone separator (3), the two gas pipes (9) are communicated with a washing chamber (2), two air suction ports (17) are formed in the top of the cyclone separator (3), the two air suction ports (17) are both communicated with a separation chamber (5), a connecting column (6) is arranged in the separation chamber (5), and the connecting column (6) is wound and connected with a spiral pipe (7); a discharge port (8) is formed in the top of the separation cavity (5), the discharge port (8) is communicated with the separation cavity (5) and the two gas conveying pipes (9), a washing chamber (2) is arranged on one side of the gravity settling chamber (1), a plurality of communicated pressurized pipelines (10) are arranged at the bottom of the washing chamber (2), a plurality of vertically upward adsorption columns (11) penetrate through the pressurized pipelines (10), a plurality of horizontally arranged spray heads (12) are arranged on the pressurized pipelines (10), the spray heads (12) are fixedly connected with the pressurized pipelines (10), and a circulating water tank (13) is arranged below the pressurized pipelines (10); the top of the washing chamber (2) is provided with a filter screen plate (14), and the upper part of the filter screen plate (14) is communicated with an exhaust pipe (15).

2. The device for washing compound fertilizer tail gas particles as claimed in claim 1, wherein: and a backflow prevention sealing ring is arranged at the communication part of the gas pipe (9) between the gravity settling chamber (1) and the washing chamber (2).

3. The device for washing compound fertilizer tail gas particles as claimed in claim 1, wherein: the spray head (12) adopts a vortex dispersion type spray head (12).

4. The device for washing compound fertilizer tail gas particles as claimed in claim 1, wherein: the inner walls of the gravity settling chamber (1) and the washing chamber (2) are both provided with anticorrosive coatings, and C30 concrete is poured on the ground.

5. The device for washing compound fertilizer tail gas particles as claimed in claim 1, wherein: the filter screen plate (14) is a multi-layer honeycomb activated carbon plate.

6. The device for washing compound fertilizer tail gas particles as claimed in claim 1, wherein: one side of the exhaust pipe (15) is provided with a one-way valve (18), and the top of the exhaust pipe (15) is provided with an adsorption cover (16).

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