Lead melting smoke dust treatment device

Abstract

The utility model discloses a lead smelting smoke dust treatment device, which belongs to the technical field of dust removal equipment and comprises a lead smelting furnace, a dust collection cover is arranged above the lead smelting furnace and communicated with an induced draft fan, the induced draft fan is communicated with an absorption tank, the absorption tank is connected with a spraying assembly, the spraying assembly is communicated with a water circulation structure, and the spraying assembly comprises a spraying shell. The two sides of the spraying shell communicate with an air inlet pipe and an air outlet pipe correspondingly, spraying heads are evenly distributed on the top of the inner side of the spraying shell, and the spraying heads communicate with a high-pressure air pipe and a high-pressure water pipe. According to the lead melting smoke dust treatment device, the absorption pool and the spraying assembly are arranged, smoke dust can be treated, the dust removal efficiency is improved, the spraying head is communicated with the high-pressure air pipe, the spraying head can be cleaned, and the situation that the spraying dust removal effect is affected by water scale and sediment accumulation of the spraying head is prevented; the flow regulating valve is arranged, so that incomplete dust removal caused by insufficient water or resource waste caused by excessive water can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust removal equipment technical field especially is involved in a kind of lead melting smoke dust treatment device. BACKGROUND

[0002] At present, the main process of lead smelting plant to deal with lead smoke dust is: bag dust removal process and spray tower dust removal process, when adopting bag dust removal process to deal with lead smoke dust of anode lead melting pot, due to water vapor, silicofluoric acid and organic additives such as bone glue in smoke, the process is prone to cause bag hardening phenomenon after long-time operation, and the process has limited purification efficiency to lead smoke with particle size less than 1 micrometer, so spray tower dust removal process is more used, but general spray tower dust removal process is also difficult to deal with high-concentration explosive smoke generated in the process of anode plate processing of lead electrolysis plant, high-concentration explosive smoke is difficult to capture, and working environment in workshop still cannot be guaranteed, and circulating water can also accumulate silicofluoric acid to corrode equipment. SUMMARY

[0003] The utility model aims at providing a kind of lead melting smoke dust treatment device, set up absorption pool and spray subassembly can be handled to smoke dust, improve dust removal efficiency, spray head is communicated with high-pressure gas pipe, can clean spray head, prevent spray head from scale and sediment accumulation to influence the effect of spray dust removal, set up flow regulating valve can avoid that water quantity is not enough to cause incomplete dust removal or water quantity is too large to cause resource waste.

[0004] To achieve the above object, the utility model provides a kind of lead melting smoke dust treatment device, including lead melting furnace, lead melting furnace upper is equipped with dust collection cover, dust collection cover is communicated with induced draft fan, induced draft fan is communicated with absorption pool, absorption pool is connected with spray subassembly, spray subassembly is communicated with water circulation structure, spray subassembly includes spray shell, and the both sides of spray shell are respectively communicated with inlet pipe and outlet pipe, and the inside top of spray shell is uniformly distributed with spray head, and spray head is communicated with high-pressure gas pipe and high-pressure water pipe.

[0005] Preferably, water circulation structure includes collection water tank, collection water tank is communicated with circulating water tank, circulating water tank is equipped with high-pressure water pump and liquid level control system inside, circulating water tank is communicated with spray shell, one side of circulating water tank is provided with sewage collection tank, sewage collection tank is communicated with spray shell and water quality purification tank, and water quality purification tank is communicated with circulating water tank.

[0006] Preferably, valve is equipped between collection water tank and circulating water tank, between circulating water tank and water quality purification tank, between sewage collection tank and water quality purification tank and between sewage collection tank and spray shell.

[0007] Preferably, high-pressure gas pipe is communicated with high-pressure gas pump, high-pressure gas pump is communicated with gas storage tank, gas control valve is arranged between spray head and high-pressure gas pump, and flow control valve is arranged between spray head and high-pressure water pump.

[0008] Preferably, the spray head is a nickel-based alloy.

[0009] Preferably, a fire damper is arranged between the dust collecting hood and the induced draft fan absorption pool, the spray assembly is communicated with the electrostatic dust removal assembly, and the electrostatic dust removal assembly is provided with a discharge pipeline.

[0010] Preferably, the collection water tank is arranged outwardly expanded at the top and is provided with a mesh screen.

[0011] Therefore, the lead melting smoke dust treatment device is provided with the absorption pool and the spray assembly to treat the smoke dust, improve the dust removal efficiency, and clean the spray head by the high-pressure gas to prevent the spray head from affecting the spray dust removal effect due to scale and sediment accumulation.

[0012] The technical scheme of the present application will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a structural schematic view of a lead melting smoke dust treatment device of the present application;

[0014] Fig. 2 is a three-dimensional structural schematic view of a water circulation structure of a lead melting smoke dust treatment device of the present application;

[0015] Fig. 3 is a structural schematic view of a spray assembly of a lead melting smoke dust treatment device of the present application.

[0016] REFERENCE NUMERALS

[0017] 1, lead melting furnace; 2, dust collecting hood; 3, fire damper; 4, induced draft fan; 5, absorption pool; 6, spray assembly; 61, spray shell; 62, air inlet pipe; 63, air outlet pipe; 64, spray head; 65, high-pressure water pipe; 66, high-pressure gas pipe; 7, sewage collection tank; 8, water quality purification tank; 9, circulating water tank; 10, collection water tank; 101, mesh screen; 11, electrostatic dust removal assembly; 12, discharge pipeline. DETAILED DESCRIPTION

[0018] The technical scheme of the present application will be further described in detail below with reference to the drawings and embodiments.

[0019] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] Example 1

[0021] like Figs. 1 to 3 As shown, this utility model provides a lead smelting fume treatment device, including a lead smelting furnace 1. A dust collection hood 2 is installed above the lead smelting furnace 1 to capture the flue gas generated by the lead smelting furnace 1. The dust collection hood 2 is connected to an induced draft fan 4, which is connected to an absorption tank 5. The induced draft fan 4 can send the flue gas captured by the dust collection hood 2 into the absorption tank 5, which contains a reagent that can react with lead dust to form sediment. A flame arrester 3 is installed between the dust collection hood 2, the induced draft fan 4, and the absorption tank 5 to prevent open flames generated in the lead smelting furnace 1 from entering the pipeline. The absorption tank 5 is connected to a spray assembly 6. The flue gas after the dust has settled in the absorption tank 5 enters the spray assembly 6 for further dust removal treatment.

[0022] The spray assembly 6 includes a spray housing 61, with an inlet pipe 62 and an outlet pipe 63 connected to both sides of the spray housing 61. Flue gas enters the spray housing 61 through the inlet pipe 62, and the flue gas, after being treated by spray dust removal, exits the spray housing 61 through the outlet pipe 63. Spray heads 64 are evenly distributed on the top inner side of the spray housing 61. The spray heads 64 are made of nickel-based alloy, possessing good high-temperature resistance and corrosion resistance, and reducing the adhesion of scale and deposits.

[0023] Spray head 64 is connected to high-pressure air pipe 66 and high-pressure water pipe 65. High-pressure air pipe 66 is connected to high-pressure air pump, which is connected to air storage tank. The high-pressure air pump pressurizes the gas in the air storage tank and sends it to spray head 64 to clean any clogged spray holes and prevent it from affecting the dust removal effect. A gas control valve is installed between spray head 64 and high-pressure air pump to control the on / off state of high-pressure air pipe 66. A flow control valve is installed between spray head 64 and high-pressure water pump to control the flow rate, preventing insufficient water from causing incomplete dust removal or excessive water from wasting resources.

[0024] The spray assembly 6 is communicated with a water circulation structure, the water circulation structure comprises a collecting water tank 10, the collecting water tank 10 can collect rainwater, and water resource waste is reduced.The collecting water tank 10 is provided with external expansion at the top, the area can be increased, and more rainwater can be conveniently collected.The collecting water tank 10 is provided with a mesh 101, and the mesh 101 can filter impurities such as fallen leaves.The collecting water tank 10 is communicated with a circulating water tank 9, and the collected rainwater can enter the circulating water tank 9.The circulating water tank 9 is internally provided with a high-pressure water pump and a liquid level control system, the circulating water tank 9 is communicated with a spray shell 61, the high-pressure water pump can send water in the circulating water tank 9 into a spray head 64 through a high-pressure water pipe 65, and the liquid level control system can detect the water level in the circulating water tank 9, so that the spray effect is not affected by too little water in the circulating water tank 9.

[0025] A sewage collecting tank 7 is arranged at one side of the circulating water tank 9, the sewage collecting tank 7 is communicated with the spray shell 61 and a water quality purification tank 8, the water sprayed in the spray shell 61 flows into the sewage collecting tank 7 for collection, and the sewage in the sewage collecting tank 7 flows into the water quality purification tank 8 for treatment.The water quality purification tank 8 is communicated with the circulating water tank 9, and the water treated by the water quality purification tank 8 flows into the circulating water tank 9 for circulation.

[0026] Valves are arranged between the collecting water tank 10 and the circulating water tank 9, between the circulating water tank 9 and the water quality purification tank 8, between the sewage collecting tank 7 and the water quality purification tank 8 and between the sewage collecting tank 7 and the spray shell 61, and the valves can control the on-off of the collecting water tank 10 and the circulating water tank 9, the circulating water tank 9 and the water quality purification tank 8, the sewage collecting tank 7 and the water quality purification tank 8 and the sewage collecting tank 7 and the spray shell 61.

[0027] The induced draft fan 4 is communicated with the electrostatic dust removal assembly 11, and the electrostatic dust removal assembly 11 is provided with a discharge pipeline 12.The electrostatic dust removal assembly 11 can further remove dust from the flue gas treated by the condensation assembly, and the flue gas treated by the electrostatic dust removal assembly 11 is discharged through the discharge pipeline 12.

[0028] When the lead melting flue dust treatment device is used, the dust collecting hood 2 captures the flue gas generated by the lead melting furnace 1, the induced draft fan 4 sends the flue gas captured by the dust collecting hood 2 to the absorption tank 5 for preliminary dust removal, the flue gas treated by the absorption tank 5 enters the spray assembly 6 for further dust removal, the flue gas treated by the spray assembly 6 enters the electrostatic dust removal assembly 11 for final dust removal, and the flue gas after dust removal is discharged through the discharge pipeline 12.

[0029] Therefore, the utility model discloses a kind of lead fume treatment devices, setting absorption pool and spray component can be handled to smoke dust, improve dust removal efficiency, spray head is communicated with high-pressure gas pipe, can be cleaned to spray head, prevent spray head from scale and sediment accumulation and influence the effect of spray dust removal, set flow regulating valve can avoid the incomplete dust removal caused by insufficient water or resource waste caused by excessive water.

[0030] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model and not to limit them, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: its still can modify or equivalent replace the technical solutions of the utility model, and these modifications or equivalent replacements also cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the utility model.

Claims

1. A lead fume treatment device, characterised in that: The lead melting furnace is provided with a dust collecting hood above the lead melting furnace, the dust collecting hood is communicated with an air draught fan, the air draught fan is communicated with an absorption tank, the absorption tank is connected with a spraying assembly, the spraying assembly is communicated with a water circulation structure, the spraying assembly comprises a spraying shell, air inlet pipes and air outlet pipes are respectively communicated with both sides of the spraying shell, spraying heads are uniformly distributed on the inner top of the spraying shell, the spraying heads are communicated with high-pressure air pipes and high-pressure water pipes.

2. A lead fume treatment device according to claim 1, characterised in that: The water circulation structure comprises a collecting water tank, the collecting water tank is communicated with a circulating water tank, the circulating water tank is internally provided with a high-pressure water pump and a liquid level control system, the circulating water tank is communicated with the spraying shell, a sewage collecting tank is arranged on one side of the circulating water tank, the sewage collecting tank is communicated with the spraying shell and a water quality purification tank, the water quality purification tank is communicated with the circulating water tank.

3. A lead fumes treatment device according to claim 2, characterised in that: Valves are arranged between the collecting water tank and the circulating water tank, between the circulating water tank and the water quality purification tank, between the sewage collecting tank and the water quality purification tank, and between the sewage collecting tank and the spraying shell.

4. A lead fumes treatment device according to claim 2, characterised in that: The high-pressure air pipe is communicated with a high-pressure air pump, the high-pressure air pump is communicated with a gas storage tank, a gas control valve is arranged between the spraying head and the high-pressure air pump, and a flow control valve is arranged between the spraying head and the high-pressure water pump.

5. A lead fumes treatment device according to claim 1, characterised in that: The spraying head is made of nickel-based alloy.

6. A lead fumes treatment device according to claim 1, characterised in that: A fire arrester is arranged between the dust collecting hood and the absorption tank, the spraying assembly is communicated with an electrostatic dust removal assembly, and the electrostatic dust removal assembly is provided with a discharge pipeline.

7. A lead fumes treatment device according to claim 2, characterised in that: The collecting water tank is outwardly expanded at the top and is provided with a mesh screen.

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