High-temperature-resistant flue gas dust removal device for rotary anode furnace for copper smelting
By combining the inlet and outlet boxes made of high-temperature resistant materials with the principle of gravity settling, the problems of dust settling and pipe burnout in the flue gas of the rotary anode furnace for copper smelting have been solved, achieving stable operation and efficient dust removal of the device.
Patent Information
- Application Number
- CN202421047295.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-14
AI Technical Summary
High moisture content in the flue gas from rotary anode furnaces in copper smelting increases dust adhesion, leading to clogging of bag filters and dust accumulation in fans. Furthermore, the low flue gas temperature can easily cause pipe burnout, affecting system operating efficiency.
The air inlet and outlet boxes are made of high-temperature resistant materials. Combined with gravity, large dust particles settle in the device, preventing the bag filter from clogging and the fan from accumulating dust. The high-temperature resistant layer also prevents the pipes from burning out.
It effectively solves the problem of large dust particles settling in flue gas, avoids clogging of bag filters and dust accumulation in fans, and improves the stability and high-temperature resistance of the system.
Smart Images
Figure CN222342395U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nonferrous metal smelting, in particular to a high-temperature resistant copper smelting rotary anode furnace flue gas dust removal device. Background Art
[0002] At present, the copper smelting rotary anode furnace is the core equipment in the refining process, which has the characteristics of low cost and easy operation. During the production process, the anode furnace will produce flue gas at about 800℃, which will be cooled to about 300℃ by the spray cooler and then enter the plate flue gas cooler for further cooling. The flue gas temperature drops from 300℃ to below 150℃ and enters the bag dust collector for purification, and finally enters the desulfurization system.
[0003] However, since the anode furnace uses natural gas as fuel and reducing agent, the moisture content of the flue gas is much higher than that of the flue gas produced by other processes. After being cooled by the spray cooler, the moisture content of the flue gas further increases, resulting in an increased possibility of acid condensation and increased dust adhesion in the flue gas. Under the traction of the fan, the dust enters the bag collector and the fan along with the flue gas, causing the bag collector to become stuck and the fan to accumulate dust seriously, necessitating frequent shutdown for treatment.
[0004] On the other hand, in order to avoid acid condensation on the bag surface due to low temperature, the temperature of the flue gas entering the bag dust collector needs to be increased. Therefore, the temperature of the flue gas duct needs to be maintained above 200°C, which can easily cause duct burns and require shutdown, affecting the system operation rate. Utility Model Content
[0005] The utility model aims to provide a high temperature resistant copper smelting rotary anode furnace flue gas dust removal device to solve the problems raised in the above background technology.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A high temperature resistant copper smelting rotary anode furnace flue gas dust removal device comprises an air inlet box and an air outlet box which are fixedly connected together, wherein the bottom ends of the air inlet box and the air outlet box are provided with square funnels.
[0008] An air inlet pipe opening is arranged on the upper part of the side wall of the air inlet box away from the air outlet box.
[0009] An air outlet is provided on the upper portion of the side wall of the air outlet box away from the air inlet box.
[0010] The inner side walls of the air inlet box and the air outlet box are both provided with a high temperature resistant layer.
[0011] The inner side walls of the air inlet box and the air outlet box are both provided with a plurality of gripping nails embedded in the high temperature resistant layer.
[0012] The side wall between the air inlet box and the air outlet box is located directly above the outlet at the bottom end of the square funnel.
[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0014] The utility model has the advantages of reasonable structure, strong high temperature resistance and simple manufacture. According to the principle of gravity, large particles of dust are fully settled in the dust removal device, which effectively solves the problems of smoke generated after the anode furnace flue gas is cooled and entering the bag collector, causing blockage of the bag dust collector and dust accumulation in the fan. At the same time, since high temperature resistant materials are cast inside the box, it is not easy to burn, which provides a solid foundation for the long-term and stable operation of the anode furnace. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] In the figure: air inlet box 1, air outlet box 2, air inlet pipe opening 3, air outlet pipe opening 4, square funnel 5. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0019] like Figure 1 As shown, the utility model provides a high-temperature resistant copper smelting rotary anode furnace flue gas dust removal device, comprising an air inlet box 1 and an air outlet box 2 fixedly connected together, an air inlet pipe opening 3 is arranged on the upper part of the side wall of the air inlet box 1 away from the air outlet box 2, an air outlet pipe opening 4 is arranged on the upper part of the side wall of the air outlet box 2 away from the air inlet box 1, square funnels 5 are arranged at the bottom ends of the air inlet box 1 and the air outlet box 2, and the side wall between the air inlet box 1 and the air outlet box 2 is located directly above the bottom outlet of the square funnel 5.
[0020] High temperature resistant materials are cast on all four sides of the inner walls of the air inlet box 1 and the air outlet box 2, and grab nails are welded on the four sides of the inner walls of the air inlet box 1 and the air outlet box 2 to assist in the casting and shaping of the high temperature resistant materials. The high temperature resistant materials are made by adding a certain density of 3cm fine steel wire to ordinary refractory castables.
[0021] The working principle of the utility model is as follows: when in use, due to the traction of the fan, the smoke containing smoke and dust enters the air inlet box 1 from the air inlet pipe port 3, the smoke containing smoke and dust is mixed with many solid particles, and falls into the square funnel 5 due to the effect of gravity, and the smoke enters the air outlet box 2 from the bottom of the side wall between the air inlet box 1 and the air outlet box 2, and enters the next process through the air outlet pipe port 4.
Claims
1. A high temperature resistant copper smelting rotary anode furnace flue gas dust removal device, characterized in that: It comprises an air inlet box (1) and an air outlet box (2) which are fixedly connected together, wherein the bottom ends of the air inlet box (1) and the air outlet box (2) are provided with a square funnel (5); The inner side walls of the air inlet box (1) and the air outlet box (2) are both provided with a high temperature resistant layer.
2. The high temperature resistant copper smelting rotary anode furnace flue gas dust removal device according to claim 1, characterized in that: An air inlet pipe opening (3) is provided on the upper portion of the side wall of the air inlet box (1) away from the air outlet box (2).
3. The high temperature resistant copper smelting rotary anode furnace flue gas dust removal device according to claim 1, characterized in that: An air outlet pipe opening (4) is provided on the upper portion of the side wall of the air outlet box (2) away from the air inlet box (1).
4. The high temperature resistant copper smelting rotary anode furnace flue gas dust removal device according to claim 1, characterized in that: The inner side walls of the air inlet box (1) and the air outlet box (2) are both provided with a plurality of gripping nails embedded in the high temperature resistant layer.
5. The high temperature resistant copper smelting rotary anode furnace flue gas dust removal device according to claim 1, characterized in that: The side wall between the air inlet box (1) and the air outlet box (2) is located directly above the bottom outlet of the square funnel (5).