CN212349137U

CN212349137U - Ammonia removal device for heavy alkali centrifuge field

Info

Publication number: CN212349137U
Application number: CN202020417160.7U
Authority: CN
Inventors: 李敬辉; 董洪达; 程成
Original assignee: Lianyungang Soda Ash Co ltd
Current assignee: Lianyungang Soda Ash Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2021-01-15
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses an on-site ammonia removal device for a heavy alkali centrifuge, which comprises a fan, a hydraulic jet air cyclone and an ammonia remover, wherein an air inlet pipe is arranged at the air inlet of the fan, an air outlet pipe is arranged at the air outlet of the fan, a feed inlet of the hydraulic jet air cyclone is communicated with a hood on a discharge conveyer belt of the heavy alkali centrifuge, a central exhaust pipe of the hydraulic jet air cyclone is communicated with the air inlet pipe, a recovery box is arranged at the bottom of the hydraulic jet air cyclone, a bottom discharge port of the hydraulic jet air cyclone is connected with a pipeline of the recovery box, and an adjusting valve is arranged on the pipeline; the ammonia remover comprises a tank body, and an active carbon layer, a drying agent layer and a packing layer which are arranged in the tank body from top to bottom, wherein an air outlet pipe extends to the inside of the tank body, a plurality of air outlet holes are formed in the bottom of the air outlet pipe positioned in the tank body, a liquid discharge pipe is arranged at the bottom of the tank body, and a vent pipe is arranged at the top of the tank body. The utility model discloses can effectual reduction scene ammonia concentration, improve operational environment's comfort level.

Description

Ammonia removal device for heavy alkali centrifuge field

Technical Field

The utility model relates to a heavy alkali centrifuge is on-spot with removing ammonia device belongs to heavy alkali centrifuge on-spot ammonia technical field that removes.

Background

The heavy alkali centrifuge is more and more widely applied to the soda production industry, can improve the bottleneck of energy consumption in the ammonia-soda process soda production process, improves the product yield and quality, and reduces the production cost. However, after the heavy alkali centrifuge finishes the dehydration of wet heavy alkali, the heavy alkali is finally discharged onto a belt of the centrifuge, the heavy alkali rotates and rolls in the centrifuge, a large amount of free ammonia in the heavy alkali is directly volatilized, the field ammonia smell of the belt of the centrifuge is large, the ammonia content in the air is seriously high in a certain period every year, the ammonia content is abnormally high in 5-9 months every year in general, the ammonia content is higher and higher along with the rise of the air temperature, and the heavy alkali is particularly heavy in 7-8 months (national standard: the ammonia content in the air is less than or equal to 30 mg/m)³) The ammonia smell is pungent on site, the production operation environment is worsened, and the adverse effect is caused to the physical and psychological health of workers; and the moisture in the heavy alkali and the volatilized free ammonia can be condensed into water in the branch pipe in the air draft process of the existing air pipe of the centrifugal fan, a large amount of alkali and condensed water can be accumulated in the air pipe, and the stable operation and the ammonia removal effect of the centrifugal fan can be influenced.

Disclosure of Invention

For solving the not enough of prior art, the utility model provides a heavy alkali centrifuge is on-the-spot with removing ammonia device has effectually reduced on-the-spot ammonia concentration, has improved operational environment's comfort level, and can retrieve moisture content and partial free ammonia.

The utility model discloses the technical scheme who adopts does:

a field ammonia removal device for a heavy alkali centrifuge comprises a fan, a hydraulic jet air cyclone and an ammonia remover, wherein an air inlet of the fan is provided with an air inlet pipe, an air outlet of the fan is provided with an air outlet pipe, a feed inlet of the hydraulic jet air cyclone is communicated with a hood on a discharge conveyer belt of the heavy alkali centrifuge, a central exhaust pipe of the hydraulic jet air cyclone is communicated with the air inlet pipe, the bottom of the hydraulic jet air cyclone is provided with a recovery box, a discharge outlet at the bottom of the hydraulic jet air cyclone is connected with a pipeline of the recovery box, and a regulating valve is arranged on the pipeline; the ammonia remover comprises a tank body, and an active carbon layer, a drying agent layer and a packing layer which are arranged in the tank body from top to bottom, wherein an air outlet pipe extends to the inside of the tank body, a plurality of air outlet holes are formed in the bottom of the air outlet pipe positioned in the tank body, a liquid discharge pipe is arranged at the bottom of the tank body, and an emptying pipe is arranged at the top of the tank body.

Preferably, a U-shaped pipe structure is formed downwards on the air inlet pipe, a connecting pipe communicated with the recovery box is further arranged at the bottom of the U-shaped pipe structure, and a valve is arranged on the connecting pipe.

Further preferably, the bottoms of the recovery box and the tank body are provided with a plurality of support legs.

Preferably, a baffle is arranged in the recovery box in an inclined manner towards the left lower portion, a channel is reserved between the top of the right side of the baffle and the side wall of the recovery box, a discharge port is formed in the bottom of the recovery box on the left side of the baffle, a liquid outlet is formed in the bottom of the side wall of the recovery box on the right side of the baffle, a water pump is connected to the tail end of the liquid outlet through a pipeline, an outlet of the water pump is communicated with a liquid inlet in the side wall of the hydraulic jet air cyclone, and a discharge pipe is further.

Further preferably, a gas flow meter is arranged on a pipeline between the central exhaust pipe of the hydraulic jet air cyclone and the U-shaped pipe structure on the air inlet pipe.

Further preferably, a flow rate control valve is further provided in the outlet pipe between the water pump and the discharge pipe.

Preferably, a plurality of baffle plates which are obliquely arranged downwards are arranged in the tank body between the air outlet pipe and the packing layer at intervals relatively.

The beneficial effects of the utility model reside in that:

discharging alkali and condensate water in the ammonia-containing gas from a bottom discharge outlet to a recovery tank for recovery by adopting a hydraulic jet air swirler, and further collecting and discharging moisture in the ammonia-containing gas into the recovery tank by adopting a U-shaped pipe; and finally, the ammonia in the ammonia-containing gas is absorbed by the ammonia remover to reduce the content of the ammonia in the discharged gas, so that the stable operation of the fan is ensured, and simultaneously the alkali and moisture in the gas are recovered and the emission content of the ammonia is reduced.

Drawings

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

the main reference numerals in the figures have the following meanings:

1. the device comprises a fan, 2, a hydraulic jet air cyclone, 3, an ammonia remover, 4, an air inlet pipe, 5, an air outlet pipe, 6, a recovery box, 7, a regulating valve, 8, a connecting pipe, 9, a valve, 10, a support leg, 11, a gas flowmeter, 12, a flow regulating valve, 21, a feed inlet, 22, a central exhaust pipe, 23, a bottom discharge outlet, 31, a tank body, 32, an activated carbon layer, 33, a drying agent layer, 34, a packing layer, 35, a liquid discharge pipe, 36, a vent pipe, 37, a baffle plate, 41, a U-shaped pipe structure, 51, an air outlet, 61, a partition plate, 62, a discharge outlet, 63, a liquid outlet, 64, a water pump, 65 and a discharge pipe.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1: the embodiment is a field ammonia removal device for a heavy alkali centrifuge, which comprises a fan 1, a hydraulic jet air cyclone 2 and an ammonia remover 3, wherein an air inlet pipe 4 is arranged at an air inlet of the fan 1, an air outlet pipe 5 is arranged at an air outlet of the fan 1, a feed inlet 21 of the hydraulic jet air cyclone 2 is communicated with a hood on a discharge conveyer belt of the heavy alkali centrifuge, a central exhaust pipe 22 of the hydraulic jet air cyclone 2 is communicated with the air inlet pipe 4, a recovery box 6 is arranged at the bottom of the hydraulic jet air cyclone 2, a bottom discharge outlet 23 of the hydraulic jet air cyclone 2 is connected with the recovery box 6 through a pipeline, and an adjusting valve 7 is arranged on the pipeline; the ammonia remover 3 comprises a tank 31, and an activated carbon layer 32, a drying agent layer 33 and a packing layer 34 which are arranged in the tank 31 from top to bottom, wherein an air outlet pipe 5 extends into the tank 31, a plurality of air outlet holes 51 are formed in the bottom of the air outlet pipe 5 positioned in the tank 31, a liquid discharge pipe 35 is arranged at the bottom of the tank 31, and an air release pipe 36 is arranged at the top of the tank 31.

A U-shaped pipe structure 41 is formed downwards on the air inlet pipe 4, a connecting pipe 8 communicated with the recovery tank 6 is further arranged at the bottom of the U-shaped pipe structure 41, and a valve 9 is arranged on the connecting pipe 8.

The bottom of the recovery box 6 and the tank body 31 are provided with a plurality of support legs 10.

A baffle 61 is arranged in the recovery tank 6 in an inward inclined manner in the left-bottom direction, a channel is reserved between the top of the right side of the baffle 61 and the side wall of the recovery tank 6, a discharge outlet 62 is arranged at the bottom of the recovery tank 6 on the left side of the baffle 61, a liquid outlet 63 is arranged at the bottom of the side wall of the recovery tank 6 on the right side of the baffle 61, a water pump 64 is connected to the tail end pipeline of the liquid outlet 63, the outlet of the water pump 64 is communicated with a liquid inlet on the side wall of the hydraulic jet air cyclone 2, and a discharge pipe 65.

A gas flow meter 11 is also arranged on the pipeline between the central exhaust pipe 22 of the hydraulic jet air cyclone 2 and the U-shaped pipe structure 41 on the air inlet pipe 4.

A flow rate control valve 12 is also provided in the outlet pipe between the water pump 64 and the discharge pipe 65.

A plurality of baffle plates 37 which are obliquely arranged downwards are also oppositely arranged at intervals in the tank body 31 between the air outlet pipe 5 and the packing layer 34.

When the utility model is used in practice, three fans 1 can be arranged and respectively communicated with the air inlet pipe 4, and then two fans are provided; during operation, the fan 1 is started, the fan 1 enables ammonia-containing gas to spin out condensed water and alkali through the hydraulic jet air cyclone 2 and discharge the condensed water and the alkali into the recovery tank 6 through the bottom discharge port 23, the ammonia-containing gas is discharged into the air inlet pipe 4 through the central exhaust pipe 22, and the water and the alkali condensed in the air inlet pipe 4 are gathered in the U-shaped pipe structure 41 and discharged into the recovery tank 6 on the left side of the partition plate 61 through the connecting pipe 8; the ammonia-containing airflow subjected to further water and alkali removal is sent into the ammonia remover 3 through the air outlet pipe 5, and sequentially passes through the packing layer 34, is dried through the drying agent layer 33 and is subjected to ammonia odor removal through the activated carbon layer 32, so that the ammonia content in the gas discharged through the vent pipe 36 is reduced, and the water condensed in the ammonia remover 3 is discharged and collected through the liquid discharge pipe 35; the baffle 61 that sets up in the collection box 6 for the aqueous alkali that falls into in the collection box 6 on the left of baffle 61 produces the layering, and will overflow to the collection box 6 on the right side of baffle 61 in through the baffle 61 top after the water accumulation, then start water pump 64 and take out water to the inlet on the lateral wall of water jet air swirler 2 and wash water jet air swirler 2 and accelerate the precipitation to moisture condensation and alkali in the ammonia-containing gas and bring into collection box 6 in, when actual use, still be provided with observation window or level gauge in collection box 6 both sides and be used for the observation to the liquid level when patrolling and examining, so that discharge the collection to the reclaimed materials.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an on-spot ammonia removal device that uses of heavy alkali centrifuge which characterized in that: the device comprises a fan (1), a hydraulic jet air cyclone (2) and an ammonia remover (3), wherein an air inlet pipe (4) is arranged at an air inlet of the fan (1), an air outlet pipe (5) is arranged at an air outlet of the fan (1), a feed inlet (21) of the hydraulic jet air cyclone (2) is communicated with a hood on a discharge conveyer belt of a heavy alkali centrifuge, a central exhaust pipe (22) of the hydraulic jet air cyclone (2) is communicated with the air inlet pipe (4), a recovery box (6) is arranged at the bottom of the hydraulic jet air cyclone (2), a bottom discharge outlet (23) of the hydraulic jet air cyclone (2) is in pipeline connection with the recovery box (6) and is provided with an adjusting valve (7); remove ammonia ware (3) including jar body (31) and from top to bottom set up activated carbon layer (32), drier layer (33) and packing layer (34) in jar body (31), go out tuber pipe (5) and extend to the inside of jar body (31), and seted up a plurality of exhaust vent (51) in the bottom of the inside tuber pipe (5) of jar body (31), the bottom of jar body (31) is provided with fluid-discharge tube (35), and the top of jar body (31) is provided with blow-down pipe (36).

2. The on-site ammonia removal device for the heavy alkali centrifuge as claimed in claim 1, wherein a U-shaped pipe structure (41) is formed downwards on the air inlet pipe (4), a connecting pipe (8) communicated with the recovery tank (6) is further arranged at the bottom of the U-shaped pipe structure (41), and a valve (9) is arranged on the connecting pipe (8).

3. The on-site ammonia removal device for the heavy alkali centrifuge as claimed in claim 1, wherein the bottom of the recovery tank (6) and the bottom of the tank body (31) are provided with a plurality of support legs (10).

4. The on-site ammonia removal device for the heavy alkali centrifuge as claimed in claim 1, wherein a partition plate (61) is arranged in the recovery tank (6) and inclines downwards to the left, a channel is reserved between the top of the right side of the partition plate (61) and the side wall of the recovery tank (6), a discharge outlet (62) is arranged at the bottom of the recovery tank (6) on the left side of the partition plate (61), a liquid outlet (63) is arranged at the bottom of the side wall of the recovery tank (6) on the right side of the partition plate (61), a water pump (64) is connected to the tail end pipeline of the liquid outlet (63), the outlet of the water pump (64) is communicated with a liquid inlet on the side wall of the hydraulic jet air cyclone (2), and a discharge pipe (65) is further arranged on the outlet pipeline of the.

5. The on-site ammonia removal device for the heavy alkali centrifuge as claimed in claim 2, wherein a gas flow meter (11) is further arranged on a pipeline between the central exhaust pipe (22) of the hydraulic jet air cyclone (2) and the U-shaped pipe structure (41) on the air inlet pipe (4).

6. The on-site ammonia removal device for the heavy alkali centrifuge as claimed in claim 4, wherein a flow control valve (12) is further provided on the outlet pipe between the water pump (64) and the discharge pipe (65).

7. The field ammonia removal device of the heavy alkali centrifuge as claimed in claim 1, wherein a plurality of baffles (37) which are obliquely arranged downwards are arranged in the tank body (31) between the air outlet pipe (5) and the packing layer (34) at intervals.