Aluminum electrolysis cell aluminum oxide crust breaking and feeding device and crust breaking and feeding method
A technology of aluminum electrolytic cell and feeding device, which is applied in the field of electrolytic aluminum production in pre-cultivated aluminum electrolytic cell, which can solve the blockage of the fire hole of the feeding port, waste the power consumption of the shelling cylinder, and increase the heat loss of the electrolytic cell at the fire hole of the feeding port Fluorine-containing gas and other problems can be achieved to prevent precipitation, improve dissolution rate and current efficiency
Pending Publication Date: 2021-04-23
新疆生产建设兵团第八师天山铝业有限公司
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Problems solved by technology
This will not only reduce the success rate of the shelling hammer to construct the fire hole of the discharge port, but also cause the blockage of the fire hole of the discharge port
If the discharge hole, that is, the alumina feeding channel is blocked, the alumina powder discharged from the constant volume feeder will not be able to pass through the discharge hole and be added to the electrolyte, thereby affecting the material balance in the aluminum electrolytic cell , affecting the current efficiency of the aluminum electrolytic cell
[0009] (2) Once the shelling hammer forms a long bag of bonded electrolyte, it will not only increase the weight of the shelling hammer moving up and down, increase the energy consumption of the cylinder, waste the power consumption of the shelling cylinder, and the discharge port The fire hole will be an irregular trumpet-shaped hole with a large top and a bottom. Not only when receiving the alumina powder leaked from the discharge guide pipe, it is easy to form material accumulation on the edge of the bell mouth of the discharge port, resulting in alumina powder Outward diffusion and accumulation loss, so that the alumina powder cannot be completely added to the electrolyte liquid layer according to the set technical requirements, and will increase the heat loss in the electrolytic cell at the fire hole of the feeding port and the disorderly discharge of fluorine-containing gases
Increase the energy consumption of the reactive drive drive of the shelling cylinder
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[0041] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the application according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. . In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0043] Such as figure 1 and Figure 4As shown, on the one hand, an embodiment of the present invention provides an alumina shelling and charging device for an aluminum electrolytic cell, which includes: a height adjustment pa...
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The invention discloses an aluminum electrolysis cell aluminum oxide crust breaking and feeding device and a crust breaking and feeding method, relates to the technical field of pre-cultured aluminum electrolysis cell aluminum electrolysis production, and mainly aims to improve the feeding efficiency of aluminum oxide powder. According to the main technical scheme, the aluminum electrolysis cell aluminum oxide crust breaking and feeding device comprises a height adjusting part and a crust breaking part, wherein the height adjusting part comprises a track frame, a screw rod and a sliding block, the track frame is fixedly arranged above an electrolysis cell, the two ends of the screw rod are rotationally connected to the track frame, the sliding block is connected to the track frame in a sliding mode, and the screw rod is in threaded connection with the sliding block and is used for driving the sliding block to move up and down along the track frame; and the crust breaking part comprises an air cylinder mechanism and a crust breaking hammer head, the air cylinder mechanism comprises an air cylinder body and a piston rod which slides in the air cylinder body in a reciprocating mode, the air cylinder body is fixedly connected to the sliding block, the lower end of the piston rod is connected to the crust breaking hammer head, and the crust breaking hammer head is in a cylinder shape.
Description
technical field [0001] The invention relates to the technical field of electrolytic aluminum production in a pre-cultivated aluminum electrolytic cell, in particular to an alumina shelling and feeding device and a shelling and feeding method for an aluminum electrolytic cell. Background technique [0002] The process of producing electrolytic aluminum in the prebaked aluminum electrolytic cell is a continuous and stable process of adding alumina powder into the electrolyte solution according to the set technical parameters, and performing thermoelectrochemical reactions in the electrolyte solution to generate and replace it with metal aluminum liquid. In the production process of electrolytic aluminum, the control of the concentration of alumina in the electrolyte solution in the molten pool of the aluminum electrolytic cell, that is, the control of the material supply balance process of the mutual transformation of aluminum oxide into metal and aluminum liquid, is the core t...
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IPC IPC(8): C25C3/14
CPCC25C3/14
Inventor 曾超林刘君鹏刘永红谭震军杜聪刘云凤高德金
Owner 新疆生产建设兵团第八师天山铝业有限公司