An electric gas hood on an electrowinning cell

Abstract

The utility model discloses an electric gas collecting cover on the electrowinning tank, include: the expandable and foldable gas collecting cover body, set up the upper portion of electrowinning tank, chlorine monitor, set up the outside of gas collecting cover body, and its detection end sets up in the gas collecting cover body, fan, set up one end of gas collecting cover body, and its air inlet sets up in the gas collecting cover body, and the exhaust port is connected with tail gas treatment system, wherein, the signal output end of chlorine monitor is connected with the start -stop control part of fan through controller. The utility model has realized the organized discharge of the overflow chlorine gas in the electrowinning tank production process, and simple operation, easy control can greatly improve the field operation environment and will not affect the rest production operation.

Description

Technical Field

[0001] This utility model relates to the field of hydrometallurgical equipment technology, and in particular to an electric gas collection hood on an electrodeposition cell. Background Technology

[0002] The electrowinning of nickel or cobalt using a chlorination system involves adding a nickel or cobalt chloride solution to an open electrowinning cell and applying electricity to produce electrowinning nickel or cobalt and chlorine gas. During the electrowinning process, chlorine gas leaks out into the work environment, creating a poor working environment where personnel must wear respirators. Therefore, it is urgent to address how to effectively manage the release of leaked chlorine gas and improve the working environment. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an electrically operated gas collection hood for an electrodeposition tank.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] An electrically operated gas collection hood on an electrodeposition cell, comprising:

[0006] An expandable and foldable gas collection hood body is installed on the upper part of the electrodeposition cell;

[0007] The chlorine gas monitor is installed outside the gas collection hood body, and its detection end is installed inside the gas collection hood body;

[0008] The fan is located at one end of the gas collection hood body, with its air inlet located inside the gas collection hood body and its exhaust outlet connected to the exhaust gas treatment system.

[0009] The signal output of the chlorine gas monitor is connected to the start / stop control section of the fan via a controller.

[0010] The gas collection hood body includes:

[0011] Several portal frames are arranged in sequence, and the portal frames are connected by a flexible material cover;

[0012] Two tracks are respectively set on the upper edges of the electrodeposition cell on both sides;

[0013] The bottom of each portal frame is mounted on a track via pulleys; a motor reducer assembly is mounted on the pulley of the frontmost portal frame, and the motor reducer assembly is connected to the electrical control cabinet.

[0014] The beneficial effects of this invention are as follows: This invention uses a gas collection hood to collect chlorine gas overflowing during the electrowinning process. A fan transports the chlorine-containing waste gas inside the gas collection hood to the tail gas treatment system. Simultaneously, a chlorine gas monitor is designed to monitor the chlorine concentration inside the gas collection hood in real time. When the concentration exceeds the standard, the fan operates, discharging the chlorine gas to the tail gas treatment system. After adopting this invention, the chlorine concentration in the on-site working environment is significantly reduced compared to before. This invention achieves a complete transformation from unorganized to organized chlorine emissions during the electrowinning process, resulting in a significant reduction in the chlorine concentration in the on-site working environment. The chlorine gas monitor in this invention monitors the chlorine concentration inside the gas collection hood in real time, and the fan and the chlorine gas monitor operate in an interlocking manner, thus ensuring a good on-site working environment. When electrowinning nickel or cobalt needs to be unloaded, the electrical control cabinet is designed to fold the gas collection hood to one side, thus not affecting the unloading operation of electrowinning nickel or cobalt. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] The components include: 1. Gas collection hood; 2. Fan; 3. Chlorine gas monitor; 4. Electrical control cabinet. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0018] like Figure 1 As shown, an electric gas collection hood for an electrodeposition cell includes: a deployable and foldable gas collection hood body 1, disposed on the upper part of the electrodeposition cell; a chlorine gas monitor 3, disposed outside the gas collection hood body 1, with its detection end disposed inside the gas collection hood body 1; and a fan 2, disposed at one end of the gas collection hood body 1, with its air inlet disposed inside the gas collection hood body 1 and its exhaust outlet connected to a tail gas treatment system; wherein the signal output end of the chlorine gas monitor 3 is connected to the start / stop control part of the fan 2 via a controller. The gas collection hood body 1 includes: several portal frames 13 arranged in sequence, the portal frames 13 being connected by flexible material covers 11; two tracks 12, respectively disposed on the upper edges of both sides of the electrodeposition cell; wherein the bottom of each portal frame 13 is mounted on the track 12 via pulleys; a motor reducer assembly 14 is fitted onto the pulley of the foremost portal frame 13, and the motor reducer assembly 14 is connected to an electrical control cabinet 4.

[0019] During electrowinning, the gas collection hood 1 collects the chlorine gas that overflows during the electrowinning process. A chlorine gas monitor 3 monitors the chlorine concentration inside the gas collection hood 1 in real time. When the concentration exceeds a preset value, the chlorine gas monitor 3 sends a signal to the controller, which then controls the fan 2 to transport the chlorine-containing waste gas inside the gas collection hood 1 to the exhaust gas treatment system. When the electrowinning cell stops production or when electrowinning nickel or cobalt plates are being unloaded, the fan 2 is turned off, and the motor reducer assembly 14 is controlled by the electrical control cabinet 4 to move the gantry frame 13 to one side, completely folding the gas collection hood 1 so as not to affect the unloading of electrowinning nickel or cobalt plates.

[0020] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An electrically operated gas collection hood on an electrodeposition tank, characterized in that, include: An expandable and foldable gas collection hood body (1) is set on the upper part of the electrodeposition cell; A chlorine gas monitor (3) is installed outside the gas collection hood body (1), and its detection end is installed inside the gas collection hood body (1); The fan (2) is located at one end of the gas collection hood body (1), with its air inlet located inside the gas collection hood body (1) and its exhaust outlet connected to the exhaust gas treatment system. The signal output terminal of the chlorine gas monitor (3) is connected to the start / stop control section of the fan (2) via a controller.

2. The electrically operated gas collection hood on an electrodeposition tank according to claim 1, characterized in that, The gas collection hood body (1) includes: Several portal frames (13) are arranged in sequence and connected to each other by a flexible cover (11); Two tracks (12) are respectively set on the upper edge of the electrodeposition cell on both sides; Among them, the bottom of the gantry frame (13) is installed on the track (12) by pulleys; the pulley of the frontmost gantry frame (13) is fitted with a motor reducer assembly (14), and the motor reducer assembly (14) is connected to the electrical control cabinet (4).

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