Automatic feeding system for steamed selenium residues

Abstract

The utility model relates to an automatic feeding system for steamed selenium slag. The automatic feeding system comprises a steamed selenium roasting rotary kiln, an observation port, an operation port, a kiln tail electric gate valve, a 1 # z-shaped pipe chain conveyor, a steamed selenium slag bin, a weighing module, a bin wall vibrator, a star-shaped discharge valve, a 2 # z-shaped pipe chain conveyor, a weighing metering screw conveyor, a copper separation reaction tank and a discharge port. The automatic feeding system for the steamed selenium slag can realize quantitative and continuous feeding of the steamed selenium slag, is economical and practical, is tight in connection, can completely replace manual operation to carry out full-automatic operation, is low in labor cost, can prevent the steamed selenium slag from scattering, reduces feeding dust, effectively improves the recovery rate of rare and noble metals, avoids pollution of operation to the environment, and is suitable for popularization and application. The production safety is guaranteed, the production is easy to control, the copper separation efficiency is high, the production cost is low, the labor intensity is small, the production operation continuity and stability are good, and clean production can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of automatic feeding systems of selenium evaporation residue, specifically belongs to anode slime technical smelting field. BACKGROUND

[0002] Copper anode slime is a byproduct produced in copper electrolytic refining process, and is also one of important raw materials for recovering precious metals and other valuable metals. At present, there are many process flows for treating copper anode slime, and the mature and competitive ones that can be scaled up include wet process and top-blown converter smelting fire process. The main process flow of the wet process is copper anode slime-sulfation selenium evaporation roasting-wet treatment-gold and silver refining. The selenium evaporation residue is obtained by sulfation roasting and selenium evaporation of copper anode slime in a rotary kiln, and the copper in the selenium evaporation residue is recovered by acid leaching and copper separation, and other valuable metals are continuously recovered from the copper separation residue.

[0003] In the existing process, the selenium evaporation residue is mainly assisted by a crane, hoisted to a wet treatment area, and manually transported to a copper separation reaction tank for copper separation operation. Since the selenium evaporation residue hopper is an open hopper and the selenium evaporation residue is in powder form, the selenium evaporation residue is easy to scatter during manual transportation, and dust is easy to generate during feeding, which reduces the recovery rate of rare and precious metals and pollutes the production environment. Multiple people operate on the operation platform, and safety accidents such as falling and collision are easy to occur. At the same time, manual transportation cannot accurately control the material flow and continuously and uniformly feed the material, which increases the operation time and production cost, and the reaction degree fluctuates obviously, and the production is not easy to control. Therefore, it is necessary to develop a device that can solve the above technical problems. SUMMARY

[0004] In view of the above status, the utility model provides an automatic feeding system of selenium evaporation residue to realize quantitative and continuous feeding of selenium evaporation residue, improve the continuity and stability of production operation, and achieve the purpose of clean production.

[0005] The automatic feeding system of selenium evaporation residue of the utility model is composed of a selenium evaporation roasting rotary kiln (1), an observation port (2), an operation port (3), a kiln tail electric gate valve (4), a 1# pipe chain conveyor (5), a selenium evaporation residue bin (6), a weighing module (7), a bin wall rapping device (8), a star-shaped discharge valve (9), a 2# pipe chain conveyor (10), a weighing and metering screw conveyor (11), a copper separation reaction tank (12), and a discharge port (13).

[0006] The kiln tail of the selenium evaporation roasting rotary kiln (1) is sequentially provided from top to bottom with an observation port (2), an operation port (3) and an electric gate valve (4); the electric gate valve (4) is communicated with a 1# pipe chain conveyor (5) through a double-path pipeline, and then communicated with a selenium evaporation residue bin (6); the outer edge of the selenium evaporation residue bin (6) is provided with a weighing module (7), and the outer wall of the conical cylinder of the bin body is provided with a bin wall shaker (8); the discharge port of the selenium evaporation residue bin (6) is provided with a star-shaped discharge valve (9), and the star-shaped discharge valve (9) is communicated with a weighing and metering screw conveyor (11) through a double-path pipeline and a 2# pipe chain conveyor (10); the weighing and metering screw conveyor (11) is communicated with a copper separation reaction tank (12) through a pipeline; the bottom of the copper separation reaction tank (12) is provided with a discharge port (13), so as to form an automatic feeding system for selenium evaporation residue.

[0007] The bin wall shaker (8) is equally divided into three on the same horizontal plane outside the conical cylinder of the bin body of the selenium evaporation residue bin (6).

[0008] The pipe chain conveyor is a z-shaped pipe chain conveyor.

[0009] The automatic feeding system for selenium evaporation residue can realize quantitative and continuous feeding of selenium evaporation residue, is economical and practical, is closely connected, can completely replace manual operation to realize full-automatic operation, has low labor cost, can prevent selenium evaporation residue from scattering and reduce dust during feeding, effectively improves the recovery rate of rare and precious metals, avoids pollution to the environment during operation and control, ensures the safety of production, is easy to control, has high copper separation efficiency, has low production cost, has low labor intensity, has good continuity and stability of production operation, and can realize clean production. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 The automatic feeding system for selenium evaporation residue is shown in the figure.

[0011] Figure 2 The connection structure relationship of the selenium evaporation roasting rotary kiln, the selenium evaporation residue bin and the copper separation reaction tank in the automatic feeding system for selenium evaporation residue is shown in the figure.

[0012] In the figure: 1, selenium evaporation roasting rotary kiln; 2, observation port; 3, operation port; 4, kiln tail electric gate valve; 5, 1# pipe chain conveyor; 6, selenium evaporation residue bin; 7, weighing module; 8, bin wall shaker; 9, star-shaped discharge valve; 10, 2# pipe chain conveyor; 11, weighing and metering screw conveyor; 12, copper separation reaction tank; 13, discharge port. DETAILED DESCRIPTION

[0013] Embodiment 1

[0014] The utility model discloses a selenium residue automatic feeding system by selenium residue roasting rotary kiln (1), observation port (2), operating mouth (3), kiln tail electric gate valve (4), 1# pipe chain conveyor (5), selenium residue stock bin (6), weighing module (7), bin wall rapping ware (8), star -shaped discharge valve (9), 2# pipe chain conveyor (10), weighing metering screw conveyor (11), copper separation reaction tank (12) and discharge gate (13) constitute.

[0015] The kiln tail of the selenium residue roasting rotary kiln (1) is sequentially provided with the observation port (2), the operating mouth (3) and the electric gate valve (4) from top to bottom; the electric gate valve (4) is communicated with the 1# z-shaped pipe chain conveyor (5) through double-way pipelines, and then is communicated with the selenium residue stock bin (6); the outer edge of the selenium residue stock bin (6) is provided with the weighing module (7), and three bin wall rapping wares (8) are equally divided on the same horizontal plane outside the conical cylinder of the bin body; the discharge gate of the selenium residue stock bin (6) is provided with the star-shaped discharge valve (9), and is communicated with the weighing metering screw conveyor (11) through double-way pipelines and the 2# z-shaped pipe chain conveyor (10); the weighing metering screw conveyor (11) is communicated with the copper separation reaction tank (12) through pipelines; the bottom of the copper separation reaction tank (12) is provided with the discharge gate (13), so as to form the selenium residue automatic feeding system.

[0016] Example 2

[0017] In the selenium residue automatic feeding system, the kiln tail of the selenium residue roasting rotary kiln (1) is provided with the observation port (2) and the operating mouth (3), so as to facilitate observation and auxiliary operation of discharging; the electric gate valve (4) is arranged at the kiln tail outlet of the selenium residue roasting rotary kiln (1), so as to control the discharging amount of the selenium residue. After the copper anode slime is treated by the selenium residue roasting rotary kiln (1), the selenium residue is produced, the amount of the selenium residue flowing into the 1# pipe chain conveyor (5) is controlled through the kiln tail electric gate valve (4), and the selenium residue is conveyed to the selenium residue stock bin (6); the material in the selenium residue stock bin (6) is weighed in real time and recorded through the weighing module (7), and then is conveyed into the 2# pipe chain conveyor (10) through the star-shaped discharge valve (9) at the bottom of the bin and double-way pipelines; the bin body is continuously rapped through the bin wall rapping ware (8) during the discharging process, so as to prevent the phenomenon of blocking during the discharging process. The selenium residue is conveyed to the weighing metering screw conveyor (11) through the 2# pipe chain conveyor (10), and is continuously and quantitatively added into the copper separation reaction tank (12).

Claims

1. An automatic feeding system for selenium evaporation residue, characterized in that: The automatic feeding system of the selenium evaporation residue comprises a selenium evaporation roasting rotary kiln (1), an observation port (2), an operation port (3), a kiln tail electric gate valve (4), a 1# pipe chain conveyor (5), a selenium evaporation residue bin (6), a weighing module (7), a bin wall rapping device (8), a star-shaped discharge valve (9), a 2# pipe chain conveyor (10), a weighing and metering screw conveyor (11), a copper separation reaction tank (12) and a discharge port (13). The kiln tail of the selenium evaporation roasting rotary kiln (1) is sequentially provided from top to bottom with the observation port (2), the operation port (3) and the electric gate valve (4); the electric gate valve (4) is communicated with the 1# pipe chain conveyor (5) through a double-path pipeline, and then communicated with the selenium evaporation residue bin (6); the outer edge of the selenium evaporation residue bin (6) is provided with the weighing module (7), and the conical cylinder of the bin body is provided with the bin wall rapping device (8) outside; the discharge port of the selenium evaporation residue bin (6) is provided with the star-shaped discharge valve (9), and communicated with the weighing and metering screw conveyor (11) through a double-path pipeline, the 2# pipe chain conveyor (10); the weighing and metering screw conveyor (11) is communicated with the copper separation reaction tank (12) through a pipeline; the bottom of the copper separation reaction tank (12) is provided with the discharge port (13), thereby forming the automatic feeding system of the selenium evaporation residue.

2. The automatic selenium dregs feeding system according to claim 1, characterized in that: The bin wall rapping device (8) is equally divided into three on the same horizontal plane outside the conical cylinder of the bin body of the selenium evaporation residue bin (6).

3. The automatic selenium dregs feeding system according to claim 1, characterized in that: The pipe chain conveyor is a z-shaped pipe chain conveyor.

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