Collecting system for escaping smoke dust in copper smelting

Abstract

The utility model discloses a system for collecting escaping smoke dust in copper smelting, which relates to the technical field of smoke dust collection and is characterized in that a dust collecting tank for receiving smoke dust is arranged at each smoke dust open circuit discharge pipe, a closed compartment is arranged at each dust collecting tank in a surrounding manner, and a dust collecting pipeline is arranged in each closed compartment; the end, located outside the closed compartment, of the dust collection pipeline is connected with the dust collection pipeline. And dust collection is performed on each smoke open-circuit discharge area, so that environmental pollution is eliminated, and the field environment is improved.

Description

Technical Field

[0001] This utility model relates to the field of dust collection technology, specifically a dust collection system for copper smelting. Background Technology

[0002] When performing large-scale cleaning of the flash furnace boiler, exhausting ash from the radiating section due to dust malfunction, exhausting ash from the settling chamber and electrostatic precipitator due to dust pump failure, or when the dust bin at the furnace top is full and needs to be emptied, it is essential to ensure that the flash furnace's loading capacity is not affected. If the scraper conveyor is shut down for an extended period and the ash is not discharged through an open channel, the scraper conveyor may become jammed, forcing the flash furnace to shut down. Therefore, when it is necessary to discharge ash through an open channel, the open discharge port leads to severe ash dispersion, easily causing on-site environmental pollution, posing a significant environmental risk, and impacting production. Utility Model Content

[0003] The purpose of this utility model is to provide a copper smelting fume collection system that collects dust from various open-path fume discharge areas, thereby eliminating environmental pollution and improving the on-site environment.

[0004] This utility model can be achieved through the following technical solution: a copper smelting fume collection system, wherein each open-circuit exhaust pipe is equipped with a dust collection tank for receiving fume, each dust collection tank is surrounded by a sealed compartment, and a dust suction pipe is arranged in each sealed compartment, with one end of the dust suction pipe located outside the sealed compartment connected to the dust collection pipe.

[0005] Compared with the prior art, the present invention has the following beneficial effects:

[0006] By using a sealed compartment to collect the soot escaping from the open exhaust pipe, the soot is prevented from spreading to other locations. The soot is then collected by absorbing it from inside the sealed compartment through a dust extraction pipe. This reduces the risk of soot pollution and improves the working environment on site. Furthermore, all valuable metals in the collected soot are effectively recovered, preventing economic losses caused by the loss of valuable metals. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0008] Figure 2 A schematic diagram of the structure in the area where soot is discharged. Detailed Implementation

[0009] Please see Figure 1-2As shown, a copper smelting fume collection system includes a dust collection tank A at each open-circuit exhaust pipe for receiving fumes. Each dust collection tank A is surrounded by a sealed compartment 10, and a suction pipe 20 is arranged within each sealed compartment 10. One end of the suction pipe 20, located outside the sealed compartment 10, connects to a dust collection pipe 30. In this scheme, the sealed compartments 10 at each open-circuit exhaust pipe collect the fumes escaping from the exhaust pipes, preventing free escape of the fumes. The suction pipe 20 within the sealed compartment 10 collects the fumes inside the sealed compartment 10. Dust is collected and sent to the dust removal device via the dust collection pipe 30 for dust removal; the dust escaping from each open exhaust pipe is collected, which reduces the risk of dust pollution to the environment and improves the working environment on site. On the other hand, all valuable metals in the collected dust are effectively recovered, avoiding economic losses caused by the loss of valuable metals. Moreover, since only each sealed compartment 10 is dusted, the power requirement for the negative pressure equipment is not very high, thus avoiding the problem of huge power consumption caused by continuous operation of high-power negative pressure equipment.

[0010] Specifically, in this application, a dust collection pipe 20 is arranged in the upper middle part of the sealed compartment 10, and the dust collection pipe 20 is U-shaped. Each pipe section is arranged near the wall, and the dust collection pipe 30 is connected to the negative pressure equipment.

[0011] All the dust collection pipes 20 are interconnected and connected to the bag filter 40 via the dust collection pipe 30. The bag filter 40 is used to separate dust and gas. The bag filter 40 is equipped with a collection tank for receiving dust. The dust falling from the filter bag is collected by the collection tank. After the collection tank is full, it is returned to the concentrate silo for batching, so as to realize the recovery of valuable metals in the dust.

[0012] The sealed compartment 10 is equipped with a fume hood 11 for covering the top opening of the dust collection tank A. The fume hood 11 is driven by a drive mechanism to move closer to or further away from the dust collection tank A. After the dust collection tank A is moved into place by a forklift, the drive mechanism drives the fume hood 11 to fall down and cover the dust collection tank A. Part of the dust falling from the fume hood 11 enters the dust collection tank A, and the other part escapes into the sealed compartment 10.

[0013] The suction pipe 20 is equipped with a suction port 21 on the pipe section located in the sealed compartment 10; the dust collection pipe 30 is equipped with a valve 22 on the pipe section connected to the suction pipe 20; the working status of the suction pipe 20 in each sealed compartment 10 is controlled by the corresponding valve 22, that is, the suction pipe 20 at each open exhaust pipe of soot can be turned on or off according to the actual emission situation, which helps to reduce the loss of negative pressure and prevent insufficient negative pressure.

[0014] In addition, this application also proposes adding ground spray dust suppression devices along the dust collection area. Addressing the issue of dust emission from smelting fumes and dust spillage from vehicle transport areas, the existing initial smelting rainwater collection pond and drainage system can be utilized to add ground spraying in easily polluted areas such as the steam drying plaza, smelting fumes, and smelting boilers. This reduces environmental pollution caused by regional dust emission. The rinsed water is returned to the smelting rainwater pond for reuse. When the liquid level is low, the rinsing can be done by supplementing with recycled production water. This modification allows copper-containing fumes to be directly recovered and sent to water quenching for reuse, preventing the loss of valuable metals. Furthermore, manual ground cleaning is no longer required, reducing labor costs. Supplementing with recycled production water when the liquid level is low also significantly alleviates the company's water balance pressure.

Claims

1. A copper smelting fume collection system, wherein each open-circuit exhaust pipe is equipped with a dust collection tank (A) for receiving fume, characterized in that: Each dust collection tank (A) is surrounded by a sealed compartment (10). A dust collection pipe (20) is arranged in each sealed compartment (10). The end of the dust collection pipe (20) located outside the sealed compartment (10) is connected to the dust collection pipe (30). The dust collection pipe (20) is arranged in the upper middle part of the sealed compartment (10) and the dust collection pipe (20) is U-shaped. Each pipe section is arranged close to the wall. A fume hood (11) is provided in the sealed compartment (10) to cover the top opening of the dust collection tank (A). The fume hood (11) is driven by a drive mechanism to be close to or away from the dust collection tank (A). A suction port (21) is provided on the pipe section of the dust collection pipe (20) located in the sealed compartment (10).

2. The copper smelting fume collection system according to claim 1, characterized in that: All the suction pipes (20) are interconnected and connected to the bag filter (40) via the dust collection pipe (30).

3. The copper smelting fume collection system according to claim 1 or 2, characterized in that: A valve (22) is installed on the pipe section connecting the dust collection pipe (30) and the dust suction pipe (20).

Images