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Aluminum industry solid waste recovery/petroleum coke high temperature desulfurization device and its use method

A solid waste and desulfurization device technology, applied in the field of metallurgy and environmental protection, to achieve the effects of reducing pollution, reducing power consumption, and improving yield

Inactive Publication Date: 2018-05-22
SHENYANG BEIYE METALLURGIGAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Aiming at the above-mentioned problems existing in the recycling and processing of solid waste in the aluminum industry and the high-temperature desulfurization of petroleum coke, the present invention provides a device for recycling solid waste in the aluminum industry / high-temperature desulfurization of petroleum coke and its use method. The fragments of waste cathode carbon blocks or petroleum coke are used as resistance heating elements, and the furnace is made of refractory materials. A high-melting point crystallization chamber is set above the furnace, and a low-melting point substance crystallization chamber and a liquid low-melting point substance collector are set outside the furnace shell. , the high-melting-point crystallization chamber and the low-melting-point material crystallization chamber are respectively connected to the vacuum system, and through high-temperature vacuum separation and recovery, the effect of efficient separation of solid waste in the aluminum industry, or the effect of efficient petroleum coke desulfurization

Method used

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  • Aluminum industry solid waste recovery/petroleum coke high temperature desulfurization device and its use method
  • Aluminum industry solid waste recovery/petroleum coke high temperature desulfurization device and its use method
  • Aluminum industry solid waste recovery/petroleum coke high temperature desulfurization device and its use method

Examples

Experimental program
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Effect test

Embodiment 1

[0065] Aluminum industry solid waste recycling / petroleum coke high temperature desulfurization plant structure as follows figure 1 As shown, the cross-sectional view of B-B plane is as follows figure 2 As shown, the cross-sectional view of C-C plane is shown as image 3 As shown, the cross-sectional view of D-D plane is shown as Figure 4 Shown, comprise furnace body, low-melting-point material crystallizer 23 and liquid low-melting-point material collector 30; Shell 1 is sealed and connected to the furnace cover 4. The furnace shell 1 is provided with an insulating material layer 2, and the insulating material layer 2 is provided with a trough-shaped refractory wall 3. The trough-shaped refractory wall 3 consists of four side wall panels and a Bottom wall panels; trough-shaped refractory wall 3 is provided with refractory concrete inner walls 7; refractory concrete inner walls 7 are composed of three inner wall panels perpendicular to the bottom wall panels, refractory con...

Embodiment 2

[0085] The structure of the device is as Figure 5 Shown, body of furnace and crystallizer of liquid low melting point material are the same as embodiment 1, and difference is:

[0086] The main material chamber is used to place raw coke;

[0087] The crystallizer 23 for low-melting-point material is a vertical structure consisting of an inclined section and a vertical section. The crystallizer 23 for low-melting-point material is composed of an inclined section and a vertical section. , the collection pipe communicates with the liquid low-melting point material collector 30 through a valve (discharging valve 31), and the top end of the vertical section is provided with an end cover 24 that is sealed and connected with the low-melting point material crystallizer 23;

[0088] Method is with embodiment 1, and difference is:

[0089] (1) Put raw coke in the main material chamber as a resistance heating element; the particle size of the raw coke is ≤8cm;

[0090] (2) No materia...

Embodiment 3

[0097] The structure of the device is the same as in Example 1, wherein the main material chamber is used to place calcined petroleum coke;

[0098] Method is with embodiment 2, and difference is:

[0099] (1) Put the calcined petroleum coke in the main material chamber as a resistance heating element; the particle size of the calcined petroleum coke is ≤8cm;

[0100] (2) Without opening the front-end vacuum exhaust pipe, the furnace body is evacuated to an air pressure of ≤80Pa through the rear-end vacuum exhaust pipe; the desulfurization rate of petroleum coke is 91.4%.

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Abstract

The invention discloses an aluminum industry solid waste recovery / petroleum coke high-temperature desulphurization device and a using method thereof, and belongs to the technical field of metallurgy environmental protection. The device comprises a furnace body, a low-melting-point matter crystallizer at the rear end of the furnace body, and a liquid low-melting-point matter collector below the low-melting-point matter crystallizer. A main material chamber in the furnace body is used for containing aluminum electrolysis cell waste cathode carbon broken blocks or petroleum coke used as a resistance heating body. A sleeve is arranged at the rear end of the furnace body to be communicated with the low-melting-point matter crystallizer. The bottom of the low-melting-point matter crystallizer is communicated with a liquid collector through a valve. The using method mainly comprises the steps that the resistance heating body is placed into the main material chamber, vacuumizing is carried out, cooling water is introduced, the resistance heating body is powered on and heated, vacuumizing and heating are stopped after vacuum high-temperature separation, argon is introduced, and materials coagulated by the low-melting-point matter crystallizer are heated to be molten to enter the liquid low-melting-point matter collector. According to the device and the method, operation is easy, energy is saved, and pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of metallurgy and environmental protection, and in particular relates to a solid waste recovery / petroleum coke high-temperature desulfurization device in the aluminum industry and a use method thereof. Background technique [0002] Metal aluminum is produced by cryolite-alumina molten salt electrolysis. During the entire production process from primary aluminum to primary aluminum purification and making metal ingots and alloy materials, the following types of waste are produced: [0003] 1. The following solid wastes are produced during the overhaul of the aluminum electrolytic cell: (1) waste cathode carbon blocks containing sodium and electrolytes; (2) waste refractories containing infiltrated electrolytes, metal sodium and refractory materials reacting to form sodium aluminosilicate Material lining; (3) waste cathode lining of silicon nitride combined with silicon carbide containing electrolyte; (4) Fe-A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B26/10C22B26/12C22B7/00C10C1/19C25C3/06
CPCC10C1/19C22B7/00C22B26/10C22B26/12C25C3/06Y02P10/20
Inventor 冯乃祥
Owner SHENYANG BEIYE METALLURGIGAL TECH CO LTD
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