Flue gas waste heat utilization device for aluminum electrolysis cell

Abstract

The utility model relates to the technical field of aluminum electrolysis equipment, in particular to a flue gas waste heat utilization device for an aluminum electrolysis cell, which is characterized in that an inlet of a dust removal device is arranged on a high-temperature flue gas pipeline of the electrolysis cell; the air inducing device is communicated with the dust removal device through a flue gas utilization pipeline; the supporting rod comprises a connecting part, a flow guide part and a supporting part; the connecting part is of a vertically-arranged plate-shaped structure. The flow guide part is of a groove structure with an upward opening; the upper end of one side of the diversion part is connected with the connecting part; the supporting part is of a plate-shaped structure which is horizontally arranged; the supporting part is arranged at the upper end of the other side of the flow guide part; the plurality of supporting rods are mutually spliced to form a plurality of rectangular accommodating spaces which are distributed at intervals; the plurality of flow guide plates and the plurality of heat dissipation devices are alternately distributed in the plurality of rectangular accommodating spaces; the plurality of heat dissipation devices are connected in series through a communicating pipeline; the heat dissipation device is communicated with the air inducing device through a pipeline; and the heat dissipation device is communicated with a high-temperature flue gas pipeline of the electrolytic According to the utility model, the accumulated snow on the roof can be eliminated by electrolyzing flue gas waste heat.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum electrolysis equipment technical field especially relates to a kind of aluminum electrolytic cell flue gas waste heat utilization device. BACKGROUND

[0002] High-temperature flue gas with temperature up to 130℃-150℃ is generated in the process of aluminum electrolysis production, and direct discharge not only causes heat energy waste, but also aggravates environmental burden. At the same time, in cold regions such as Xinjiang, the snowfall is large in winter, and the snow thickness on the roof of electrolytic plant can reach more than 200mm, which brings multiple safety hazards.

[0003] 1. In the snow melting season, a large amount of snow melts, and snow water is easy to flow into the electrolytic workshop from the roof joint, causing the roof of aluminum electrolytic plant to "leak rain". If the "leak rain" accidentally enters the aluminum electrolytic cell, it will instantly vaporize when meeting the high-temperature molten material above 900℃ in the cell, thereby causing an explosion accident. High-temperature molten metal explosion accident is not uncommon in the industry. 2. If the "leak rain" of the roof of aluminum electrolytic plant accidentally enters the tank control system, it will cause short circuit of the electrical control system, which is easy to cause a series of power failure accidents; 3. The electrolytic plant is about 25m high, and using traditional manual snow removal is high-altitude work. The roof is steep and accompanied by ice and snow, which is easy to cause high-altitude falling accidents. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model provides an aluminum electrolytic cell flue gas waste heat utilization device, mainly aiming at eliminating roof snow by using electrolysis flue gas waste heat and eliminating safety hazards caused by snow.

[0005] To achieve the above purpose, the utility model mainly provides the following technical scheme:

[0006] The embodiment of the utility model provides an aluminum electrolytic cell flue gas waste heat utilization device, which comprises a dust removal device, a flue gas utilization pipeline, an air induction device, a support, a flow guide plate and a heat dissipation device.

[0007] The inlet of the dust removal device is arranged on the electrolytic cell high-temperature flue gas pipeline and communicates with the electrolytic cell high-temperature flue gas pipeline.

[0008] The inlet of the flue gas utilization pipeline communicates with the outlet of the dust removal device.

[0009] A flue gas control valve is arranged on the flue gas utilization pipeline.

[0010] The inlet of the air induction device communicates with the dust removal device through the flue gas utilization pipeline.

[0011] The support comprises a support rod, and the support rod comprises a connecting part, a flow guide part and a support part.

[0012] The connecting part is a vertically arranged plate-shaped structure.

[0013] The flow guide part is a groove structure with an upward opening; one side upper end of the flow guide part is connected with the connecting part;

[0014] The support part is horizontally arranged in a plate structure; the support part is fixedly arranged at the other side upper end of the flow guide part;

[0015] The connecting part, the flow guide part and the support part are integrally formed; the support rod is an aluminum alloy profile;

[0016] The support rod is a plurality of; the plurality of support rods are spliced into a plurality of rectangular accommodation spaces distributed at intervals; in a single rectangular accommodation space, the support part is inside the connecting part;

[0017] Ends of the flow guide parts on the plurality of support rods are flush with each other and are in communication;

[0018] The flow guide plate is fixedly arranged on the support part of the rectangular accommodation space, and is used for guiding the liquid in the rectangular accommodation space to the flow guide part;

[0019] The heat dissipation device is fixedly arranged on the support part of the rectangular accommodation space; the coverage area of the heat dissipation device is not less than the surface area surrounded by the support part of the rectangular accommodation space, so that the upper part of the heat dissipation device can play a guiding role;

[0020] The plurality of flow guide plates and the plurality of heat dissipation devices are alternately distributed in the plurality of rectangular accommodation spaces formed by the support rods;

[0021] The plurality of heat dissipation devices are connected in series through the communication pipeline;

[0022] The inlet of the heat dissipation device is in communication with the outlet of the air guiding device through the pipeline;

[0023] The outlet of the heat dissipation device is in communication with the high-temperature flue gas pipeline of the electrolytic cell.

[0024] Further, the communication pipeline is a flat rectangular pipe.

[0025] Further, the communication pipeline is a metal pipe.

[0026] Further, the upper side and the lower side of the heat dissipation device have heat dissipation blades.

[0027] Further, the flow guide plate is an aluminum plate.

[0028] By means of the above technical scheme, the aluminum electrolytic cell flue gas waste heat utilization device has at least the following advantages:

[0029] The electrolysis flue gas waste heat is used to remove the roof snow, and the safety hidden danger caused by the snow is removed.

[0030] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail below. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The arrangement schematic view of the aluminum electrolysis cell flue gas waste heat utilization device on the roof is provided for the embodiments of the utility model;

[0032] Figure 2 The connection schematic view of the aluminum electrolysis cell flue gas waste heat utilization device is provided for the embodiments of the utility model;

[0033] Figure 3 The arrangement schematic view of the flow guide plate and the heat dissipation device in the aluminum electrolysis cell flue gas waste heat utilization device is provided for the embodiments of the utility model;

[0034] Figure 4 The combination schematic view of the support rod in the aluminum electrolysis cell flue gas waste heat utilization device is provided for the embodiments of the utility model;

[0035] Figure 5 The schematic view of the support rod in the aluminum electrolysis cell flue gas waste heat utilization device is provided for the embodiments of the utility model.

[0036] The drawings show that:

[0037] 1 is a dust removal device, 2 is a flue gas control valve, 3 is an induced draft device, 4 is a support, 5 is a heat dissipation device, 6 is an electrolytic tank high-temperature flue gas pipeline, 7 is a support rod, 7-1 is a connecting part, 7-2 is a flow guide part, 7-3 is a supporting part, and 8 is a flow guide plate. DETAILED DESCRIPTION

[0038] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model application are described in detail below by combining with the drawings and preferred embodiments. In the following description, different 'an embodiment' or 'embodiments' do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0039] As Figures 1 to 5As shown, an embodiment of the utility model discloses an aluminum electrolytic cell flue gas waste heat utilization device, include: dust collector 1, flue gas utilization pipeline, air induction device 3, support 4, deflector 8 and heat abstractor 5, the entrance of dust collector 1 is set up on electrolytic cell high temperature flue gas pipeline 6, with electrolytic cell high temperature flue gas pipeline 6 intercommunication, is used for filtering flue gas, the entrance of flue gas utilization pipeline is communicated with the outlet of dust collector 1, is provided with flue gas control valve 2 on flue gas utilization pipeline, is used for controlling flue gas flow, the entrance of air induction device 3 is communicated with dust collector 1 through flue gas utilization pipeline, is used for sucking the high temperature flue gas in electrolytic cell high temperature flue gas pipeline 6.

[0040] Support 4 includes: support rod 7, support rod 7 includes: connecting portion 7-1, flow guide portion 7-2 and support portion 7-3, connecting portion 7-1 is vertically arranged plate structure, flow guide portion 7-2 is the groove structure of opening upward, one side upper end of flow guide portion 7-2 is connected with connecting portion 7-1, support portion 7-3 is horizontally arranged in plate structure, support portion 7-3 is fixedly arranged at the other side upper end of flow guide portion 7-2, connecting portion 7-1, flow guide portion 7-2 and support portion 7-3 are integrally formed, support rod 7 is aluminum alloy section bar, support rod 7 is multiple, multiple support rods 7 are spliced into multiple rectangular accommodating spaces distributed with interval, in single rectangular accommodating space, support portion 7-3 is inside connecting portion 7-1, the end of flow guide portion 7-2 on multiple support rods 7 is flush with each other and is conducted, so that the water after snow melting can flow out through flow guide portion 7-2.

[0041] The guide plate 8 is fixedly arranged on the support part 7-3 of the rectangular accommodating space, and is used for guiding the liquid in the range of the rectangular accommodating space to the guide part 7-2; preferably, the guide plate 8 is an aluminum plate, and has good heat conduction performance. The snow on the guide plate 8 can be guided to the guide part 7-2 by the heat dissipation device 5, and then is guided out of the roof through the guide part 7-2. The heat dissipation device 5 is fixedly arranged on the support part 7-3 of the rectangular accommodating space; the covering area of the heat dissipation device 5 is not less than the surface area surrounded by the support part 7-3 of the rectangular accommodating space, so that the upper part of the heat dissipation device 5 can play a guiding role; the snow on the heat dissipation device 5 can also flow into the guide part 7-2. The plurality of guide plates 8 and the plurality of heat dissipation devices 5 are alternately arranged in the plurality of rectangular accommodating spaces formed by the support rod 7, so that the heat dissipation device 5 can uniformly dissipate heat; the heat dissipation device 5 is arranged on the support rod 7, and can play a heat conduction role, so that the heat on the heat dissipation device 5 can be transmitted to the support rod 7 and the guide plate 8. The plurality of heat dissipation devices 5 are connected in series through the communication pipeline; preferably, the communication pipeline is a flat rectangular pipe, so that the heat dissipation and snow melting can be better. Further preferably, the communication pipeline is a metal pipe. The inlet of the heat dissipation device 5 is communicated with the outlet of the air guiding device 3 through the pipeline; preferably, the upper side and the lower side of the heat dissipation device 5 are provided with heat dissipation blades. The outlet of the heat dissipation device 5 is communicated with the electrolytic cell high-temperature flue gas pipeline 6, so that the flue gas is returned to the electrolytic cell high-temperature flue gas pipeline 6.

[0042] An aluminum electrolytic cell flue gas waste heat utilization device is provided in an embodiment of the utility model, which utilizes electrolytic flue gas waste heat to eliminate roof snow, and eliminates the safety hazard caused by the snow.

[0043] In the description of the utility model, unless another definite provision and limitation, the term "installation", "connection", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can indirectly connect through the intermediate medium, can be two elements inside the communication or two element's interaction relationship. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0044] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, and the mechanical parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0045] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Any simple modification, equivalent change and modification made according to the technical essence of the present application are still within the scope of the technical scheme of the present application.

Claims

1. An aluminum electrolysis cell flue gas waste heat utilization device, characterized in that, The utility model relates to a dust removal device, flue gas utilization pipeline, air induction device, support, deflector and heat dissipation device. The inlet of the dust removal device is arranged on the high-temperature flue gas pipeline of the electrolytic cell and communicates with the high-temperature flue gas pipeline of the electrolytic cell. The inlet of the flue gas utilization pipeline communicates with the outlet of the dust removal device. The flue gas utilization pipeline is provided with a flue gas control valve. The inlet of the air induction device communicates with the dust removal device through the flue gas utilization pipeline. The support includes a support rod, which comprises a connecting part, a flow guide part and a support part. The connecting part is a vertically arranged plate structure. The flow guide part is a groove structure with an upward opening. The flow guide part is connected to the connecting part at one side of the upper end. The support part is horizontally arranged on the plate structure. The support part is fixedly arranged at the other side of the upper end of the flow guide part. The connecting part, the flow guide part and the support part are integrally formed. The support rod is made of aluminum alloy profile. The support rod is a plurality of support rods. The plurality of support rods are spliced into a plurality of rectangular accommodation spaces. In a single rectangular accommodation space, the support part is inside the connecting part. The ends of the flow guide parts of the plurality of support rods are flush with each other and are in communication. The deflector is fixedly arranged on the support part of the rectangular accommodation space and is used to guide the liquid in the rectangular accommodation space to the flow guide part.

2. The fume waste heat utilization device of the aluminum electrolytic cell according to claim 1, characterized in that, The heat dissipation device is fixedly arranged on the support part of the rectangular accommodation space.

3. The aluminum reduction cell flue gas waste heat utilization device according to claim 2, characterized by, The heat dissipation device has a coverage area not less than the surface area enclosed by the support part of the rectangular accommodation space, so that the upper part of the heat dissipation device can play a guiding role.

4. The aluminum reduction cell flue gas waste heat utilization device according to claim 1, characterized by, The plurality of deflectors and the plurality of heat dissipation devices are alternately distributed in the plurality of rectangular accommodation spaces formed by the support rods.

5. The aluminum electrolysis cell flue gas waste heat utilization device according to claim 1, characterized by, The plurality of heat dissipation devices are connected in series through the communication pipeline. The inlet of the heat dissipation device communicates with the outlet of the air induction device through the pipeline. The outlet of the heat dissipation device communicates with the high-temperature flue gas pipeline of the electrolytic cell. The communication pipeline is a flat rectangular tube. The communication pipeline is a metal tube. The upper side and the lower side of the heat dissipation device have heat dissipation blades. The deflector is made of aluminum plate.

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