CN217775096U

CN217775096U - Aluminum water smelting tail gas treatment system

Info

Publication number: CN217775096U
Application number: CN202221887448.6U
Authority: CN
Inventors: 陈安兴; 谢志强; 梁清梅; 梁翔
Original assignee: Guangxi Pinglu Technology Development Co ltd
Current assignee: Guangxi Pinglu Technology Development Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-11-11
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses an aluminum water smelting tail gas treatment system, which comprises a smelting furnace, an oil tank, a smoke collecting chamber, a smoke collecting pipe, a tail gas treatment device and a waste heat utilization system; the smelting furnaces are arranged side by side at intervals; the smoke collecting chamber is arranged at the top of the smelting furnace, and the bottom of the smoke collecting chamber is communicated with the top of the smelting furnace; the smoke collecting pipe is horizontally arranged above the smoke collecting chamber and is respectively connected with the smoke collecting chamber through a connecting pipe; the tail gas treatment device is connected with the smoke collecting pipe and is used for emptying the collected tail gas after treatment; the waste heat utilization system is respectively connected with the smelting furnace, the oil tank and the smoke collection chamber, and the fuel oil in the oil tank is heated by using the waste heat of the tail gas. The utility model discloses can concentrate the tail gas of recovery processing whole smelting plant to can recycle tail gas waste heat heating fuel, reduce the energy consumption, energy-concerving and environment-protective.

Description

Aluminum water smelting tail gas treatment system

Technical Field

The utility model relates to an aluminum product production and processing technology field specifically is an aluminium water smelting tail gas processing system.

Background

In a traditional smelting furnace, a smoke collecting pipe is directly connected with a smoke collecting chamber through a draught fan, the smoke collecting chamber is connected with a chimney, high-heat smoke is directly discharged to the sky along with the chimney, heat is wasted, fuels such as coke are consumed, and smelting cost is high; a large amount of sulfide and other harmful gases are generated to destroy the environment; a large amount of carbon dioxide is generated, and the greenhouse effect on the surface of the earth is aggravated; and the smoke dust in the smelting workshop is large, thus harming the health of operators.

SUMMERY OF THE UTILITY MODEL

The utility model provides an aluminium water smelting tail gas processing system can concentrate the tail gas of the whole workshop of smelting of recovery processing to can recycle tail gas waste heat heating fuel, reduce the energy consumption, energy-concerving and environment-protective.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an aluminum water smelting tail gas treatment system comprises a smelting furnace, an oil tank, a smoke collection chamber, a smoke collection pipe, a tail gas treatment device and a waste heat utilization system; the smelting furnaces are arranged side by side at intervals; the smoke collecting chamber is arranged at the top of the smelting furnace, and the bottom of the smoke collecting chamber is communicated with the top of the smelting furnace; the smoke collecting pipe is horizontally arranged above the smoke collecting chamber and is respectively connected with the smoke collecting chamber through a connecting pipe; the tail gas treatment device is connected with the smoke collecting pipe and is used for treating and emptying the collected tail gas; the waste heat utilization system is respectively connected with the smelting furnace, the oil tank and the smoke collection chamber, and the fuel oil in the oil tank is heated by the waste heat of the tail gas of the smelting furnace and then returns to the smoke collection chamber.

Further, the waste heat utilization system comprises a heat storage chamber I, a heat storage chamber II, a blower, an oil tank, an air pipe I, an air pipe II, a circulating pipe and a tail gas pipe; the heat storage chamber I and the heat storage chamber II are respectively arranged on the side wall of the smelting furnace 1 and are communicated with the smelting furnace; the air blower is connected with the heat storage chamber I and the heat storage chamber II through an air pipe I and an air pipe II respectively; the circulating pipe is respectively connected with the blower, the air pipe I and the air pipe II; one end of the tail gas pipe is connected with the circulating pipe, and the other end of the tail gas pipe penetrates through the oil tank and then is connected with the smoke collection chamber.

The reversing control system comprises an electromagnetic reversing valve I, an electromagnetic reversing valve II, an electromagnetic reversing valve III and an electromagnetic reversing valve IV; the electromagnetic reversing valve I, the electromagnetic reversing valve II, the electromagnetic reversing valve III and the electromagnetic reversing valve IV are arranged on a circulating pipe, and the electromagnetic reversing valve I is arranged between the air blower and the air pipe I; the electromagnetic reversing valve II is arranged between the air pipe I and the tail gas pipe; the electromagnetic reversing valve III is arranged between the air pipe II and the tail gas pipe; and the electromagnetic directional valve IV is arranged between the air blower and the air pipe II.

Further, the tail gas treatment device comprises a filter, an exhaust fan, a solid waste outlet and a purification absorption tower; the left side of the filter is connected with the smoke collecting pipe, and the right side of the filter is connected with the exhaust fan through an air pipe III; the solid waste outlet is distributed at the bottom of the filter; the bottom of the purification absorption tower is connected with an exhaust fan.

Further, the filter is a conventional dust filter; and a desulfurization and denitrification device and a carbon dioxide absorption device are arranged in the purification absorption tower.

Further, the device also comprises a solid waste collecting device, wherein the solid waste collecting device comprises a fixing hook, a bottom plate and a solid waste recycling bag; the fixed hooks are distributed at four corners of the solid waste outlet; the bottom plate is arranged right below the solid waste outlet; the solid waste recovery bag is arranged on the bottom plate, the opening of the solid waste recovery bag is upward, and the four corners of the solid waste recovery bag are respectively hung on the fixed hooks and cover the solid waste outlet.

Furthermore, the bottom of the bottom plate is provided with universal wheels.

The utility model discloses a working process does:

along with the temperature rise of the smelting furnace, the heat storage chambers I and II start to store heat; closing the electromagnetic reversing valve II and the electromagnetic reversing valve III, opening the electromagnetic reversing valve I and the electromagnetic reversing valve IV, starting the air blower, and supplementing combustion-supporting gas to the heat storage chamber I and the heat storage chamber II through the air pipe I and the air pipe II; preheating the combustion-supporting gas by the heat storage chamber I and the heat storage chamber II, and then feeding the preheated combustion-supporting gas into a smelting furnace; when the pressure in the smelting furnace reaches a certain value, closing the electromagnetic directional valve I or the electromagnetic directional valve IV, and only keeping one gas supply channel unblocked; opening the electromagnetic reversing valve II or the electromagnetic reversing valve III, keeping an exhaust passage smooth, and discharging tail gas out of the smelting furnace; the discharged tail gas returns to the circulating pipe through the air pipe I or the air pipe II and then enters the smoke collection chamber through the tail gas pipe; the tail gas pipe penetrates through the oil tank, and the waste heat of the tail gas heats the fuel oil in the oil tank, so that the waste heat of the tail gas is recycled; under the action of an exhaust fan, after collecting tail gas of a smelting furnace and a tail gas pipe, a smoke collecting chamber sequentially enters a filter through a connecting pipe and a smoke collecting pipe for filtering, filtered solid waste enters a solid waste recycling bag from a solid waste outlet, and gas enters a purification absorption tower for absorption and purification and then is emptied; after the solid waste recovery bag is full, the bag opening is opened from the fixed hook, and the solid waste recovery bag is transferred to a solid waste storage place through the bottom plate.

The beneficial effects of the utility model are that:

1. the smoke dust generated by each smelting furnace can be collected through the smoke collecting chamber; through setting up the collection tobacco pipe, connect the collection smoke chamber in whole smelting plant, can concentrate and retrieve the smoke and dust, carry the smoke and dust to tail gas processing apparatus department in unison and carry out purification treatment.

2. By arranging the circulating pipeline and the electromagnetic reversing valve, the tail gas can be discharged in time, and the pressure relief effect is realized; the design that the tail gas pipe penetrates through the oil tank can fully utilize the waste heat of the tail gas to heat the fuel oil, and is energy-saving and environment-friendly; the tail gas after pressure relief returns to the smoke collecting chamber for centralized recovery processing, and the pipeline design is scientific and reasonable, safe and reliable, energy-saving and environment-friendly.

3. Adopt the mode of cover bag to retrieve solid useless, on the one hand easy to assemble and dismantlement, on the other hand conveniently packs and transports.

Drawings

FIG. 1 is a schematic view of the present invention;

the numbers and names in the figure are as follows:

1-smelting a furnace; 2-a smoke collection chamber; 3-heat storage chamber I; 4-heat storage chamber II; 5, a blower; 6-an oil tank; 7-a filter; 8-an exhaust fan; 9-a solid waste outlet; 10-a purification absorption tower; 11-a fixed hook; 12-a base plate; 13-solid waste recovery bag; 14-a universal wheel;

a-a smoke collecting pipe; b-a connecting tube; c-an air duct I; d-air duct II; e-a circulation pipe; f-tail gas pipe; g-air duct III;

k1, an electromagnetic directional valve I; k2-an electromagnetic directional valve II; k3-electromagnetic directional valve III; k4-electromagnetic directional valve IV.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings 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 efforts all belong to the protection scope of the present invention.

Example 1

An aluminum water smelting tail gas treatment system is shown in figure 1 and comprises a smelting furnace 1, an oil tank 6, a smoke collection chamber 2, a smoke collection pipe a, a tail gas treatment device and a waste heat utilization system; the smelting furnaces 1 are arranged side by side at intervals; the smoke collecting chamber 2 is arranged at the top of the smelting furnace 1, and the bottom of the smoke collecting chamber is communicated with the top of the smelting furnace 1; the smoke collecting pipe a is horizontally arranged above the smoke collecting chamber 2 and is respectively connected with the smoke collecting chamber 2 through a connecting pipe 3; the tail gas treatment device is connected with the smoke collecting pipe a, and is used for emptying the collected tail gas after treatment; the waste heat utilization system is respectively connected with the smelting furnace 1, the oil tank 6 and the smoke collection chamber 2, and the fuel oil in the oil tank 6 is heated by the waste heat of the tail gas of the smelting furnace 1 and then returns to the smoke collection chamber.

The waste heat utilization system comprises a heat storage chamber I3, a heat storage chamber II 4, a blower 5, an oil tank 6, an air pipe ic, an air pipe IId, a circulating pipe e and a tail gas pipe f; the heat storage chamber I2 and the heat storage chamber II 2 are respectively arranged on the side wall of the smelting furnace 1 and are communicated with the smelting furnace 1; the air blower 5 is connected with the heat storage chamber I3 and the heat storage chamber II 4 through an air pipe ic and an air pipe IId respectively; the circulating pipe e is respectively connected with the blower 6, the air pipe ic and the air pipe IId; one end of the tail gas pipe e is connected with the circulating pipe e, and the other end of the tail gas pipe e is connected with the smoke collection chamber 2 after penetrating through the oil tank 6.

The reversing control system comprises an electromagnetic reversing valve I K1, an electromagnetic reversing valve II K2, an electromagnetic reversing valve III K3 and an electromagnetic reversing valve IV K4; the electromagnetic directional valve I K1, the electromagnetic directional valve II K2, the electromagnetic directional valve III K3 and the electromagnetic directional valve IV K4 are all arranged on the circulating pipe e, and the electromagnetic directional valve I K1 is arranged between the air blower 5 and the air pipe ic; the electromagnetic directional valve II K2 is arranged between the air pipe ic and the tail gas pipe f; the electromagnetic reversing valve III K3 is arranged between the air pipe IId and the tail gas pipe f; and the electromagnetic reversing valve IV K4 is arranged between the air blower 5 and the air pipe IId.

The tail gas treatment device comprises a filter 7, an exhaust fan 8, a solid waste outlet 9 and a purification absorption tower 10; the left side of the filter 7 is connected with a smoke collecting pipe a, and the right side of the filter is connected with an exhaust fan 8 through an air pipe IIIg; the solid waste outlet 9 is distributed at the bottom of the filter 7; the bottom of the purification absorption tower 10 is connected with an exhaust fan 8.

The solid waste collection device comprises a fixing hook 11, a bottom plate 12 and a solid waste recovery bag 13; the fixed hooks 11 are distributed at four corners of the solid waste outlet 9; the bottom plate 12 is arranged right below the solid waste outlet 9; the solid waste recycling bag 13 is arranged on the bottom plate 12, the opening of the solid waste recycling bag is upward, and the four corners of the solid waste recycling bag are respectively hung on the fixed hooks 11 and cover the solid waste outlet 9.

The bottom of the bottom plate 12 is provided with universal wheels 14.

The utility model discloses a working process does:

along with the temperature rise of the smelting furnace 1, the heat storage chamber I3 and the heat storage chamber II 4 start to store heat; closing the electromagnetic directional valve II K2 and the electromagnetic directional valve III K2, opening the electromagnetic directional valve I K1 and the electromagnetic directional valve IV K3, starting the air blower 5, and supplementing combustion-supporting gas to the heat storage chamber I3 and the heat storage chamber II 4 through the air pipe ic and the air pipe IId; the combustion-supporting gas is preheated in the heat storage chamber I3 and the heat storage chamber II 4 and then is fed into the smelting furnace 1; when the pressure in the smelting furnace 1 reaches a certain value, closing the electromagnetic directional valve I K1 or the electromagnetic directional valve IV K3, and only keeping one gas supply channel smooth; opening an electromagnetic directional valve II K2 or an electromagnetic directional valve III K2, keeping an exhaust passage smooth, and discharging tail gas out of the smelting furnace 1; the exhausted tail gas returns to the circulating pipe e through the air pipe ic or the air pipe IId and then enters the smoke collection chamber 2 through the tail gas pipe f; the tail gas pipe f penetrates through the oil tank 6, and the waste heat of the tail gas heats the fuel oil in the oil tank 6, so that the waste heat of the tail gas is recycled; under the action of an exhaust fan 8, after collecting tail gas of a smelting furnace 1 and a tail gas pipe f, a smoke collecting chamber 2 sequentially enters a filter 7 through a connecting pipe b and a smoke collecting pipe a for filtering, filtered solid waste enters a solid waste recycling bag 13 from a solid waste outlet 9, and gas enters a purifying and absorbing tower 10 through an air pipe III g for absorbing and purifying and then is emptied; after the solid waste recycling bag 13 is filled, the bag opening is opened from the fixed hook 11, and the solid waste recycling bag 13 is transported to a solid waste storage place through the bottom plate 12.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an aluminium water smelting tail gas processing system which characterized in that: comprises a smelting furnace (1), an oil tank (6), a smoke collecting chamber (2), a smoke collecting pipe (a), a tail gas treatment device and a waste heat utilization system; the smelting furnaces (1) are arranged side by side at intervals; the smoke collecting chamber (2) is arranged at the top of the smelting furnace (1), and the bottom of the smoke collecting chamber is communicated with the top of the smelting furnace (1); the smoke collecting pipe (a) is horizontally arranged above the smoke collecting chamber (2) and is respectively connected with the smoke collecting chamber (2) through a connecting pipe (b); the tail gas treatment device is connected with the smoke collecting pipe (a) and is used for emptying the collected tail gas after treatment; the waste heat utilization system is respectively connected with the smelting furnace (1), the oil tank (6) and the smoke collection chamber (2), and the fuel oil in the oil tank (6) is heated by the waste heat of the tail gas of the smelting furnace (1) and then returns to the smoke collection chamber (2).

2. The molten aluminum smelting tail gas treatment system according to claim 1, characterized in that: the waste heat utilization system comprises a heat storage chamber I (3), a heat storage chamber II (4), a blower (5), an air pipe I (c), an air pipe II (d), a circulating pipe (e) and a tail gas pipe (f); the heat storage chamber I (3) and the heat storage chamber II (4) are respectively arranged on the side wall of the smelting furnace (1) and are communicated with the smelting furnace (1); the blower (5) is connected with the heat storage chamber I (3) and the heat storage chamber II (4) through an air pipe I (c) and an air pipe II (d) respectively; the circulating pipe (e) is respectively connected with the air blower (5), the air pipe I (c) and the air pipe II (d); one end of the tail gas pipe (f) is connected with the circulating pipe (e), and the other end of the tail gas pipe (f) penetrates through the oil tank (6) and then is connected with the smoke collection chamber (2).

3. The molten aluminum smelting tail gas treatment system according to claim 1, characterized in that: the reversing control system comprises an electromagnetic reversing valve I (K1), an electromagnetic reversing valve II (K2), an electromagnetic reversing valve III (K3) and an electromagnetic reversing valve IV (K4); the electromagnetic directional valve I (K1), the electromagnetic directional valve II (K2), the electromagnetic directional valve III (K3) and the electromagnetic directional valve IV (K4) are all arranged on the circulating pipe (e), and the electromagnetic directional valve I (K1) is arranged between the air blower (5) and the air pipe I (c); the electromagnetic directional valve II (K2) is arranged between the air pipe I (c) and the tail gas pipe (f); the electromagnetic directional valve III (K3) is arranged between the air pipe II (d) and the tail gas pipe (f); and the electromagnetic directional valve IV (K4) is arranged between the air blower (5) and the air pipe II (d).

4. The molten aluminum smelting tail gas treatment system of claim 1, wherein: the tail gas treatment device comprises a filter (7), an exhaust fan (8), a solid waste outlet (9), a purification absorption tower (10) and an air pipe III (g); the left side of the filter (7) is connected with the smoke collecting pipe (a), and the right side of the filter is connected with the exhaust fan (8) through an air pipe III (g); the solid waste outlets (9) are distributed at the bottom of the filter (7); the bottom of the purification absorption tower (10) is connected with an exhaust fan (8).

5. The molten aluminum smelting tail gas treatment system of claim 4, wherein: the solid waste collection device comprises a fixing hook (11), a bottom plate (12) and a solid waste recovery bag (13); the fixed hooks (11) are distributed at four corners of the solid waste outlet (9); the bottom plate (12) is arranged right below the solid waste outlet (9); the solid waste recycling bag (13) is arranged on the bottom plate (12), the opening of the solid waste recycling bag is upward, and the four corners of the solid waste recycling bag are respectively hung on the fixed hooks (11) and cover the solid waste outlet (9).

6. The molten aluminum smelting tail gas treatment system of claim 5, wherein: the bottom of the bottom plate (12) is provided with universal wheels (14).