Flue gas treatment device of reduction furnace
By using a combination of water mist spray and water tank in the flue gas treatment device of the reduction furnace, the environmental pollution problems caused by solid impurities and hydrogen emissions in the flue gas are solved, and the effects of smoke reduction and hydrogen cleaning combustion are achieved.
Patent Information
- Application Number
- CN202421128782.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The flue gas generated by existing reduction furnaces contains solid impurities and hydrogen. Direct emission will lead to environmental pollution, and the solid impurities are difficult to burn, resulting in smoke and dust still exists during combustion emissions.
Design a flue gas treatment device, including a spray pipe and a water tank, through which the flue gas sprays water mist, impurities and water flow into the water tank, hydrogen flows out through the transverse tube and burns in the exhaust pipe, the lower end of the exhaust pipe is closed and Fill water to prevent the impurities from re-generating smoke.
By spraying water mist, the generation of smoke and dust during combustion emissions is reduced, the clean combustion of hydrogen is ensured, and environmental pollution is reduced.
Smart Images
Figure CN222468486U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a reduction furnace for preparing metal powder, in particular to a fume treatment device of the reduction furnace. Background Art
[0002] When preparing metal powders such as iron-nickel powder, a reduction furnace is generally required for reduction reaction. During the high-temperature reduction reaction of the raw materials, flue gas will be generated. The flue gas contains solid impurities and hydrogen. If the flue gas is directly discharged through the flue, it will cause environmental pollution. At present, the general method is to burn the flue gas directly before discharging it, because in theory, the only product after hydrogen combustion is water. However, this method is difficult to burn solid impurities in the flue gas, resulting in smoke dust still existing during the combustion and emission process, causing environmental pollution. Utility Model Content
[0003] In view of the above technical problems, the utility model provides a fume treatment device for a reduction furnace which can reduce the generation of fume.
[0004] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a flue gas treatment device for a reduction furnace, including a flue of the reduction furnace, a vertically arranged spray pipe is connected to the lower side of the flue, and a water pool is connected to the lower side of the spray pipe. After the flue gas flowing out of the flue is sprayed with water injected by the spray pipe, impurities in the flue gas and the sprayed water flow into the water pool, and the gas in the flue gas flows out from a horizontal pipe horizontally connected to the middle part of the spray pipe.
[0005] Furthermore, a plurality of nozzles are axially arranged on the spray pipe, and the plurality of nozzles spray water toward the smoke flowing into the spray pipe.
[0006] Furthermore, the transverse pipe is connected to a vertically arranged exhaust pipe, and the gas flowing out of the transverse pipe flows into the exhaust pipe and is ignited by an igniter at an upper end outlet of the exhaust pipe and then burns.
[0007] Furthermore, the lower end of the exhaust pipe is closed, and the inner cavity of the lower end is filled with water.
[0008] Furthermore, a water outlet pipe is connected to the upper part of the water pool, and the water in the upper part of the water pool is pumped to several nozzles by the water outlet pipe.
[0009] Furthermore, the lower end of the exhaust pipe is connected to the water pool through a water pipe.
[0010] From the above technical scheme, it can be seen that the utility model first uses water mist spraying to remove impurities from the flue gas generated by the reduction furnace during the reduction process, so that heavier solid impurities flow directly into the water pool with water, while lighter hydrogen flows out from the horizontal pipe, ensuring that the outflowing hydrogen is relatively clean, so that the hydrogen can be directly burned or collected and used for other purposes, thereby reducing the generation of smoke during the combustion and emission process and reducing environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0012] Combine the following Figure 1 The present invention is described in detail. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.
[0013] like Figure 1 The utility model provides a flue gas treatment device for a reduction furnace, which comprises a flue 1 of the reduction furnace, a vertically arranged spray pipe 2 being connected to the lower side of the flue, a water pool 3 being connected to the lower side of the spray pipe, and the flue gas flowing out of the flue is sprayed with water sprayed from the spray pipe, and impurities in the flue gas and the sprayed water flow into the water pool, and the gas in the flue gas flows out from a horizontal pipe 4 horizontally connected to the middle part of the spray pipe, so that the hydrogen flowing out of the horizontal pipe is relatively clean, so as to reduce environmental pollution.
[0014] During the implementation process, the vertically arranged spray pipe can utilize the gravity of the solid impurities in the flue gas on the one hand, and on the other hand, the pressure of the sprayed water mist can make the solid impurities fall into the water pool faster, thereby improving the efficiency and effect of treating impurities. At the same time, the horizontally arranged transverse pipe of the utility model can not only ensure the smooth outflow of the lighter hydrogen, but also prevent the solid impurities from flowing out of the transverse pipe, further improving the cleanliness of the outflowing hydrogen.
[0015] Furthermore, a plurality of nozzles 5 are axially arranged on the spray pipe, and the nozzles spray water to the flue gas flowing into the spray pipe, so that water mist is formed in the spray pipe, thereby removing dust and impurities from the flue gas. In the utility model, the horizontal pipe is connected with the vertically arranged exhaust pipe 6, and after the gas flowing out of the horizontal pipe flows into the exhaust pipe, it is ignited by the igniter 7 at the upper end outlet of the exhaust pipe and then burns. Since the hydrogen flowing out is relatively clean, the product produced by its combustion is water, thereby reducing environmental pollution.
[0016] The lower end of the exhaust pipe of the utility model is closed, and the inner cavity of the lower end is filled with water. The exhaust pipe is also arranged vertically, and its function is similar to that of a spray pipe. If a small amount of solid impurities enter the exhaust pipe with the hydrogen, the heavier solid impurities will settle in the exhaust pipe under the action of gravity, further improving the cleanliness of the outflowing hydrogen, and the water contained in the inner cavity of the lower end of the exhaust pipe ensures that the settled solid impurities no longer generate smoke and dust. During the implementation process, the bottom of the exhaust pipe should be disassembled regularly to clean the settled impurities, and the water should be replaced to ensure the cleanliness of the water. The impurities precipitated in the water pool should be cleaned regularly, and the water should be replaced to further ensure the cleanliness of the water.
[0017] Furthermore, the upper part of the water pool is connected to a water outlet pipe 8, and the water in the upper part of the water pool is pumped to several nozzles by the water outlet pipe. Since solid impurities in the water pool will settle at the bottom of the water pool, and the water in the upper part of the water pool is relatively clean, it will not cause blockage when it is transported to the nozzle, thereby realizing the recycling of water. Preferably, the lower end of the exhaust pipe is connected to the water pool through a water pipe 9. The water pipe should be set at the upper part of the lower end of the exhaust pipe to ensure that the water in the water pipe is relatively clean, thereby further realizing the recycling of water and saving costs.
Claims
1. A flue gas treatment device for a reduction furnace, comprising a flue of a reduction furnace, characterized in that: A vertically arranged spray pipe is connected to the lower side of the flue, and a water pool is connected to the lower side of the spray pipe. After the flue gas flowing out of the flue is sprayed with water injected by the spray pipe, impurities in the flue gas and the sprayed water flow into the water pool, and the gas in the flue gas flows out from the horizontal pipe horizontally connected to the middle part of the spray pipe.
2. The flue gas treatment device of the reduction furnace according to claim 1, characterized in that: A plurality of nozzles are axially arranged on the spray pipe, and the nozzles spray water toward the smoke flowing into the spray pipe.
3. The flue gas treatment device of the reduction furnace according to claim 1 or 2, characterized in that: The transverse pipe is communicated with a vertically arranged exhaust pipe. After the gas flowing out of the transverse pipe flows into the exhaust pipe, it is ignited by an igniter at the upper end outlet of the exhaust pipe and then burns.
4. The flue gas treatment device of the reduction furnace according to claim 3, characterized in that: The lower end of the exhaust pipe is closed, and the inner cavity of the lower end is filled with water.
5. The flue gas treatment device of the reduction furnace according to claim 4, characterized in that: The upper part of the water pool is connected with a water outlet pipe, and the water in the upper part of the water pool is pumped to a plurality of nozzles by the water outlet pipe.
6. The flue gas treatment device of the reduction furnace according to claim 5, characterized in that: The lower end of the exhaust pipe is communicated with the water pool through a water pipe.