CN-121974063-A - Electrolytic anode waste heat recycling storage process and device

CN121974063ACN 121974063 ACN121974063 ACN 121974063ACN-121974063-A

Abstract

The invention belongs to the technical field of anode storage and transportation in an electrolysis workshop, in particular to an electrolytic anode waste heat recycling storage process and device, comprising the following steps of conveying a new anode into a storage room through a new anode inlet and storing the new anode on a new anode preheating platform through a new anode conveying device; the method comprises the steps of preheating a new anode by utilizing waste heat released by an anode of a discharge tank arranged on a residual anode waste heat recovery platform of the new anode, transferring the preheated new anode to a tank inlet position of an electrolytic tank when the anode is replaced by the electrolytic tank, transferring the replaced anode of the discharge tank to the residual anode waste heat recovery platform, recovering waste heat and flue gas of the anode of the discharge tank by a flue gas waste heat comprehensive utilization device, using the recovered waste heat for preheating the new anode, and then conveying the cooled residual anode to a crushing procedure. The invention has the advantages of improving the utilization rate of waste heat, reducing the transportation energy consumption, reducing the unorganized emission of smoke and realizing the closed-loop utilization of heat energy.

Inventors

ZHANG XINGTAO
WANG HAITAO
WANG SHIJUN

Assignees

邹平县汇盛新材料科技有限公司
山东宏拓实业有限公司

Dates

Publication Date: 20260505
Application Date: 20251216

Claims (10)

1. The electrolytic anode waste heat recovery and recycling storage process is characterized by comprising the following steps of: s1, conveying a new anode into a storage room through a new anode inlet, and storing the new anode on a new anode preheating platform through a new anode conveying device; s2, preheating the new anode by utilizing the waste heat released by the anode of the groove outlet adjacently arranged on the residual anode waste heat recovery platform of the new anode preheating platform; s3, when the anode is replaced by the electrolytic cell, transferring the preheated new anode to a slot inlet position of the electrolytic cell, and transferring the replaced anode out of the electrolytic cell to a residual anode waste heat recovery platform; s4, recovering the residual heat and the flue gas of the tank anode through a flue gas residual heat comprehensive utilization device, using the recovered residual heat for preheating the new anode, and then conveying the cooled residual anode to a crushing process.
2. The electrolytic anode waste heat recovery and reuse storage process according to claim 1, wherein, In step S1, the new electrode conveying device includes a new electrode conveying belt disposed at the new electrode inlet, a new electrode lifter received on the new electrode conveying belt, and an anode feeding conveying belt engaged with the new electrode lifter, where the anode feeding conveying belt is used to convey the new anode to a new electrode preheating platform.
3. The electrolytic anode waste heat recovery and reuse storage process according to claim 1, wherein, The new pole preheating platform and the residual pole waste heat recovery platform are provided with a plurality of anode storage positions and are alternately arranged along the same direction; In step S1, the new anode conveying device automatically plans and executes the storage sequence and the position of the new anode according to the replacement number of the anode scrap and the number of the anodes in place on the new anode preheating platform.
4. The electrolytic anode waste heat recovery and reuse storage process according to claim 1, wherein, In step S3, the system automatically judges that the anode leaving the groove is transported to a specific position on the anode leaving residual heat recovery platform according to the required number of new anodes, the number of actually replaced anode leaving residual and the temperature state of the anode leaving the groove.
5. The electrolytic anode waste heat recovery and reuse storage process according to claim 1, wherein, In step S4, the flue gas waste heat comprehensive utilization device is connected to the anode scrap waste heat recovery platform through a flue gas recovery pipe network and a waste heat recovery pipe network, and the user recovers waste heat and flue gas; The flue gas waste heat comprehensive utilization device is connected to the new-electrode preheating platform through a preheating pipe network and is used for conveying heat to preheat a new anode.
6. The electrolytic anode waste heat recovery and reuse storage process according to claim 1, wherein, The new anode is transported to the new anode inlet through a delivery truck, and the preheated new anode is transported to a slot inlet position of the electrolytic cell through the delivery truck; The anode of the discharge tank generated by the replacement operation is transported to the residual anode waste heat recovery platform through the transport vehicle, and the residual anode after waste heat recovery and cooling is transported to the crushing treatment process through the delivery vehicle.
7. The electrolytic anode waste heat recovery and reuse storage process according to claim 1, wherein, In the step S4, the cooled anode scrap is conveyed to an anode scrap outlet through an anode scrap conveying device; The anode scrap conveying device comprises an anode scrap discharging conveyor belt connected with the anode scrap waste heat recovery platform, an anode scrap lifter connected with the anode scrap discharging conveyor belt, and an anode scrap conveyor belt connected with the anode scrap lifter, wherein the anode scrap conveyor belt is connected to the anode scrap outlet.
8. An electrolytic anode waste heat recovery and reuse device is characterized by comprising: the storage room is arranged adjacent to the electrolysis plant and is provided with a new electrode inlet and a residual electrode outlet; The new pole preheating platform and the residual pole waste heat recovery platform are arranged in the warehouse side by side, the new pole preheating platform and the residual pole waste heat recovery platform are alternately arranged, and the new pole inlet and the residual pole outlet are positioned on the same side of the new pole preheating platform and the residual pole waste heat recovery platform; the flue gas waste heat comprehensive utilization device is connected with the residual anode waste heat recovery platform through a flue gas recovery pipe network and a waste heat recovery pipe network and is connected with the new anode preheating platform through a preheating pipe network.
9. The electrolytic anode waste heat recycling device according to claim 8, wherein the new electrode inlet is connected with the new electrode preheating platform through a new electrode conveying device; The new electrode conveying device comprises a new electrode conveying belt arranged at the new electrode inlet, a new electrode lifter connected with the new electrode conveying belt and an anode feeding conveying belt connected with the new electrode lifter, and the anode feeding conveying belt is used for conveying a new anode to a new electrode preheating platform; The new electrode lifter is located on one side of the new electrode preheating platform away from the new electrode inlet.
10. The electrolytic anode waste heat recycling device according to claim 8, wherein the anode scrap waste heat recycling platform is connected with the anode scrap outlet through an anode scrap conveying device; The anode scrap conveying device comprises an anode scrap discharging conveyor belt connected with the anode scrap waste heat recovery platform, an anode scrap lifter connected with the anode scrap discharging conveyor belt and an anode scrap conveyor belt connected with the anode scrap lifter, wherein the anode scrap conveyor belt is connected to the anode scrap outlet; The anode scrap lifter is located at one side of the anode scrap waste heat recovery platform, which is close to the anode scrap outlet.

Description

Electrolytic anode waste heat recycling storage process and device Technical Field The invention belongs to the technical field of anode storage and transportation in an electrolysis workshop, and particularly relates to a storage process and a storage device for recycling waste heat of an electrolysis anode. Background In the electrolysis workshop, the storage and transportation of the anode is an important link in the production process. At present, most enterprises adopt transport vehicles to transport new anodes to workshops, and then transport the new anodes to target electrolytic tanks or temporary storage points by using forklift trucks, and the new anodes are often required to be secondarily transported during use. The process not only increases the use cost of the fuel vehicle, but also brings potential safety hazards to frequent material transfer in workshops. The temperature of the anode scrap after replacement is about 400 ℃, and the anode scrap is usually placed on an anode scrap tray and transported by a carrier. In the process, the anode scrap continuously emits smoke, the problem of unorganized emission exists, and a large amount of heat carried by the anode scrap is dissipated to the surrounding environment through convection, so that energy waste is caused. Although some enterprises are equipped with flue gas recovery devices, continuous and airtight cooperation between the anode scrap carrier and the recovery devices is difficult to realize, so that the recovery efficiency is low. On the other hand, anode preheating is critical for the stability and energy saving of the electrolysis process. The preheated anode can quickly enter the working state after entering the electrolytic tank, and the heating time in the tank is reduced, so that the heat loss in the electrolytic process is reduced. Although the comprehensive value of residual anode waste heat recycling and anode preheating is generally accepted in the industry, a mature process and an integrated device which are completely matched with the comprehensive value and can realize heat energy closed-loop utilization are not developed at present. Therefore, development of a process and a matched device capable of systematically integrating residual anode waste heat recovery and utilizing the waste heat to efficiently preheat a new anode is urgently needed, so that cascade utilization of energy sources is realized, stability of an electrolysis process is improved, and comprehensive economic benefit is enhanced. Disclosure of Invention In order to solve the problems in the background art, the invention provides a storage process and a storage device for recycling the waste heat of an electrolytic anode, which have the advantages of improving the utilization rate of the waste heat, reducing the transportation energy consumption, reducing the smoke unstructured emission and realizing the closed-loop utilization of heat energy The invention adopts the following technical scheme: the electrolytic anode waste heat recovery and reuse storage process comprises the following steps: s1, conveying a new anode into a storage room through a new anode inlet, and storing the new anode on a new anode preheating platform through a new anode conveying device; s2, preheating the new anode by utilizing the waste heat released by the anode of the groove outlet adjacently arranged on the residual anode waste heat recovery platform of the new anode preheating platform; s3, when the anode is replaced by the electrolytic cell, transferring the preheated new anode to a slot inlet position of the electrolytic cell, and transferring the replaced anode out of the electrolytic cell to a residual anode waste heat recovery platform; s4, recovering the residual heat and the flue gas of the tank anode through a flue gas residual heat comprehensive utilization device, using the recovered residual heat for preheating the new anode, and then conveying the cooled residual anode to a crushing process. Further, in step S1, the new electrode conveying device includes a new electrode conveying belt disposed at the new electrode inlet, a new electrode lifter received on the new electrode conveying belt, and an anode feeding conveyor engaged with the new electrode lifter, where the anode feeding conveyor is configured to convey the new anode onto a new electrode preheating platform. Furthermore, the new pole preheating platform and the residual pole waste heat recovery platform are provided with a plurality of anode storage positions and are alternately arranged along the same direction; In step S1, the new anode conveying device automatically plans and executes the storage sequence and the position of the new anode according to the replacement number of the anode scrap and the number of the anodes in place on the new anode preheating platform. Further, in step S3, the system automatically determines that the anode leaving the slot is transferred to a specific position on the anode