Flue gas treatment equipment for sintering harmful substances

Abstract

The utility model relates to the technical field of comburent treatment, and discloses flue gas treatment equipment for sintering harmful substances, which comprises a gas inlet hole, a dust removal mechanism is fixedly connected to one side of the gas inlet hole, a cooling pipe is fixedly connected to the upper end of the dust removal mechanism, and a humidity monitor is fixedly connected to the lower end of the cooling pipe. The device comprises a humidity monitor, the lower end and one side of the humidity monitor are fixedly connected with electromagnetic valves, the lower ends of the two electromagnetic valves are fixedly connected with a dehumidification mechanism and a connecting box respectively, one side of the connecting box is fixedly connected with a filtering mechanism, one side of the filtering mechanism is fixedly connected with a spraying mechanism, and the upper end of the spraying mechanism is fixedly connected with a demister. And the upper end of the demister is fixedly connected with a chimney. According to the utility model, a perfect dehumidification process is adopted, the purification efficiency is improved, the better purification effect of flue gas is achieved, and meanwhile, a filtering mode of multiple layers of filter plates is adopted, so that the corrosion of waste liquid is reduced, the service life of equipment is prolonged, and the stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of combustion material treatment technology, and in particular to a flue gas treatment device for sintering harmful substances. Background Technology

[0002] The flue gas generated during the sintering of hazardous substances is a complex and harmful industrial waste gas. Its main components include particulate matter such as various dusts, soot, and unburned carbon particles, sulfur oxides (primarily sulfur dioxide), nitrogen oxides, heavy metals, and organic pollutants. In industrial production, the flue gas generated during the sintering of hazardous substances poses a significant threat to the environment and human health. Traditional flue gas treatment equipment has limitations in terms of treatment efficiency and versatility.

[0003] In the prior art, for example, an asphalt fume processor with the function of filtering harmful substances, as per CN218459088U, belongs to the field of asphalt fume processors. It includes a fume treatment component, a treatment tank comprising an internal box and a perforated plate on one side of the treatment tank, a soap water tank at the upper end of the treatment tank, a connecting pipe at the lower end of the soap water tank connected to the internal box, and an adsorption plate on one side of the treatment tank with an exhaust pipe on its surface. This invention solves the problem that asphalt fume processors are inconvenient to filter substances in the fume during use, easily causing them to be emitted into the environment through the exhaust port, thus polluting the environment. Through the soap water tank, connecting pipe, motor, mixing rod, exhaust pipe, first adsorption plate, second adsorption plate, and third adsorption plate, the fume can fully contact the soap water, removing organic components and adsorbing odors, reducing odor emissions. However, this design also has certain drawbacks; it lacks a reasonable dehumidification mechanism, which can easily lead to a decrease in purification effect.

[0004] Therefore, this application provides a flue gas treatment device for sintering hazardous substances to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flue gas treatment device for sintering harmful substances, which offers better purification effects and is easier to monitor.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A flue gas treatment device for sintering harmful substances includes an air inlet, characterized in that: a dust removal mechanism is fixedly connected to one side of the air inlet; a cooling pipe is fixedly connected to the upper end of the dust removal mechanism; a humidity monitor is fixedly connected to the lower end of the cooling pipe; a solenoid valve is fixedly connected to both the lower end and one side of the humidity monitor; a dehumidification mechanism and a connecting box are respectively fixedly connected to the lower ends of the two solenoid valves; a filter mechanism is fixedly connected to one side of the connecting box; a spray mechanism is fixedly connected to one side of the filter mechanism; a demister is fixedly connected to the upper end of the spray mechanism; and a chimney is fixedly connected to the upper end of the demister.

[0008] Furthermore, the dust removal mechanism includes a smoke storage box, a dust collection box is fixedly connected to the lower end of the smoke storage box, a power supply box is fixedly connected to one side of the smoke storage box, and a dust removal plate is fixedly connected to the inner wall of the smoke storage box.

[0009] Furthermore, the dehumidification mechanism includes a condenser tube, a condensate tank is fixedly connected to the outside of the condenser tube, and a liquid exchange port is provided on the outside of the condensate tank.

[0010] Furthermore, a water outlet is fixedly connected to the lower end of the condenser tube.

[0011] Furthermore, the filtration mechanism includes a filter box, and a first filter plate, a second filter plate, a third filter plate, a first baffle, and a second baffle are fixedly connected to the inner side of the filter box.

[0012] Furthermore, a one-way valve is fixedly connected to the lower end of one side of the first baffle and the upper end of one side of the second baffle.

[0013] Furthermore, the spraying mechanism includes a waste liquid tank, a spraying box is fixedly connected to the upper end of the waste liquid tank, a storage tank is fixedly connected to one side of the spraying box, a conduit is fixedly connected to one side of the storage tank, and a nozzle is fixedly connected to the lower end of the conduit.

[0014] This utility model has the following beneficial effects:

[0015] 1. The present invention proposes a flue gas treatment device for sintering harmful substances. This design adopts a perfect dehumidification process. Dehumidifying the flue gas facilitates its transportation and prevents the moisture in the flue gas from combining with acidic gases in the flue gas to form acidic liquids, which would corrode the equipment and shorten its service life. For the adsorption and catalytic device in the filter plate, excessive humidity will reduce its performance. After dehumidification, the purification efficiency of the flue gas is improved.

[0016] 2. The present invention proposes a flue gas treatment device for sintering harmful substances, which adopts multi-layer filter plate filtration and adsorption to reduce the generation of waste liquid and prevent corrosion. At the same time, the filter plates of different layers can perform graded filtration for different filtration requirements, avoiding the rapid failure of a single filter plate due to over-reaction, thereby extending the service life of the entire filtration system and each filter plate, reducing the replacement frequency and cost, ensuring the overall filtration effect of the system, and reducing the risk of flue gas emissions exceeding standards due to filter plate failure. Attached Figure Description

[0017] Figure 1 This is an axonometric schematic diagram of the flue gas treatment equipment for sintering hazardous substances according to this utility model.

[0018] Figure 2 This is a side view schematic diagram of the dust removal mechanism of the flue gas treatment equipment for sintering hazardous substances according to this utility model.

[0019] Figure 3 This is a side view schematic diagram of the dehumidification mechanism of the flue gas treatment equipment for sintering harmful substances according to this utility model.

[0020] Figure 4 This is a side view schematic diagram of the filter mechanism of the flue gas treatment equipment for sintering hazardous substances according to this utility model.

[0021] Figure 5 This is a side view schematic diagram of the spray mechanism of the flue gas treatment equipment for sintering harmful substances according to this utility model.

[0022] Legend:

[0023] 1. Air inlet; 2. Dust removal mechanism; 3. Cooling pipe; 4. Humidity monitor; 5. Solenoid valve; 6. Dehumidification mechanism; 7. Connection box; 8. Filtration mechanism; 9. Spraying mechanism; 10. Demister; 11. Chimney; 201. Smoke storage box; 202. Power supply box; 203. Dust removal plate; 204. Dust collection box; 601. Condensate pipe; 602. Condensate tank; 603. Water outlet; 604. Liquid exchange port; 801. Filter box; 802. First filter plate; 803. First baffle; 804. One-way valve; 805. Second filter plate; 806. Third filter plate; 807. Second baffle; 901. Waste liquid tank; 902. Spraying box; 903. Spray nozzle; 904. Conduit; 905. Storage tank. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 One embodiment provided by this utility model:

[0026] A flue gas treatment device for sintering hazardous substances includes an air inlet 1. A dust removal mechanism 2 is fixedly connected to one side of the air inlet 1. A cooling pipe 3 is fixedly connected to the upper end of the dust removal mechanism 2. A humidity monitor 4 is fixedly connected to the lower end of the cooling pipe 3. Solenoid valves 5 are fixedly connected to the lower end and one side of the humidity monitor 4. A dehumidification mechanism 6 and a connecting box 7 are fixedly connected to the lower ends of the two solenoid valves 5, respectively. A filter mechanism 8 is fixedly connected to one side of the connecting box 7. A spray mechanism 9 is fixedly connected to one side of the filter mechanism 8. A demister 10 is fixedly connected to the upper end of the spray mechanism 9. A chimney 11 is fixedly connected to the upper end of the demister 10.

[0027] Specifically, flue gas enters through inlet 1, dust is removed in dust removal mechanism 2, and then the flue gas is cooled through cooling pipe 3. Humidity monitor 4 controls the opening and closing of two solenoid valves 5. The two solenoid valves 5 are connected to dehumidification mechanism 6 and connecting box 7, connecting box 7 is connected to filter mechanism 8, and filter mechanism 8 is connected to spray mechanism 9 through pipelines. Demister 10 removes moisture from the flue gas, and finally it is discharged through chimney 11. A flue gas monitoring device is installed on chimney 11 to monitor the flue gas quality at all times. The humidity monitor 4 controls the opening and closing of the two solenoid valves 5 under different humidity levels. The demister 10 removes moisture, and the flue gas monitoring device monitors whether the purified flue gas meets the emission standards. This is a mature and publicly available technology. Therefore, its specific structure and working principle will not be described in detail in this article.

[0028] refer to Figure 2 The dust removal mechanism 2 includes a smoke storage box 201, a dust collection box 204 is fixedly connected to the lower end of the smoke storage box 201, a power supply box 202 is fixedly connected to one side of the smoke storage box 201, and a dust removal plate 203 is fixedly connected to the inner wall of the smoke storage box 201.

[0029] Specifically, the dust removal mechanism 2 mainly adopts electrostatic dust removal. When the power supply box 202 is powered on, the dust removal plate 203 carries a single charge, causing the dust to be firmly adsorbed onto the dust removal plate 203 due to static electricity. When it is necessary to collect the dust on the dust removal plate 203, the power supply box 202 is de-energized, causing the static electricity effect on the dust removal plate 203 to disappear, and the dust falls into the dust collection box 204 for cleaning. The power supply box 202 being powered on and off is a mature and publicly available technology, therefore, its specific structure and working principle will not be described in detail in this article.

[0030] refer to Figure 3 The dehumidification mechanism 6 includes a condenser tube 601, a condensate tank 602 is fixedly connected to the outside of the condenser tube 601, a liquid exchange port 604 is opened on the outside of the condensate tank 602, and a water outlet 603 is fixedly connected to the lower end of the condenser tube 601.

[0031] Specifically, the flue gas passes through the condenser pipe 601 and comes into contact with the condensate tank 602. The refrigerant in the condensate tank 602 can quickly condense the water vapor in the flue gas into water droplets, which are then discharged through the outlet 603. The condensate tank 602 has two liquid exchange ports 604 on its outer side, one at the top and one at the bottom. The liquid exchange ports 604 are connected to the refrigerant circulation device to make the dehumidification capacity more complete.

[0032] refer to Figure 4 The filtration mechanism 8 includes a filter box 801. A first filter plate 802, a second filter plate 805, a third filter plate 806, a first baffle 803, and a second baffle 807 are fixedly connected to the inside of the filter box 801. A one-way valve 804 is fixedly connected to the lower end of one side of the first baffle 803 and the upper end of one side of the second baffle 807.

[0033] Specifically, flue gas enters the filter box 801. The first filter plate 802 removes sulfur dioxide from the flue gas, the second filter plate 805 mainly removes nitrogen oxides from the flue gas, and the third filter plate 806 uses adsorbents such as activated carbon and activated alumina to adsorb harmful substances such as heavy metals and dioxins from the flue gas. All filters are adsorption filters to reduce waste liquid generation and prevent corrosion. The first baffle 803 and the second baffle 807 separate different filtration stages. Two one-way valves 804 prevent flue gas backflow. One valve is located slightly lower on one side of the first baffle 803, and the other is located slightly higher on one side of the second baffle 807 to slow down the gas flow rate and improve purification efficiency. A corresponding gas monitoring device is placed between each filter plate to monitor the filtration effect of the corresponding baffle for easy replacement. The gas monitoring device monitors the filtration effect of different filter plates, which is a mature and publicly available technology. Therefore, its specific structure and working principle will not be described in detail in this paper.

[0034] refer to Figure 5 The spraying mechanism 9 includes a waste liquid tank 901, a spraying box 902 is fixedly connected to the upper end of the waste liquid tank 901, a storage tank 905 is fixedly connected to one side of the spraying box 902, a conduit 904 is fixedly connected to one side of the storage tank 905, and a nozzle 903 is fixedly connected to the lower end of the conduit 904.

[0035] Specifically, the waste liquid tank 901 and the spray tank 902 are made of corrosion-resistant materials to prevent the spray mechanism 9 from being corroded by the liquid. By spraying alkaline solutions and other absorbents, acidic gases and some harmful substances in the flue gas are removed. The storage tank 905 stores enough alkaline solution, which is sprayed out through the conduit 904 and the nozzle 903. Multiple nozzles 903 are designed to make the liquid spraying more uniform.

[0036] Working principle: Flue gas enters the dust removal mechanism 2 through the air inlet 1. When passing through the dust removal plate 203, the dust in the flue gas is attracted to the dust removal plate 203 due to static electricity, achieving the dust removal effect. Then it enters the cooling pipe 3 for cooling. After that, it passes through the humidity monitor 4. If the humidity is normal, the solenoid valve 5 leading to the connecting box 7 is opened. If the humidity is too high, the solenoid valve 5 leading to the dehumidification mechanism 6 is opened. After entering the dehumidification mechanism 6, the flue gas passes through the condenser pipe 601. The condensed water is discharged through the water outlet 603. Finally, the flue gas enters the filtration mechanism 8 through the connecting box 7. First, it passes through the first filter plate 802 to remove sulfides. Then, it passes through the second filter plate 805 to remove nitrogen oxides. Finally, the third filter plate 806 adsorbs heavy metals, dioxins and other harmful substances in the flue gas. The filtered and adsorbed gas enters the spray mechanism 9. The spray nozzle 903 mixes the alkaline solution with the flue gas evenly, removing acidic gases and some harmful substances in the flue gas. Then it enters the demister 10 to remove the water in the solution. Finally, the purified flue gas is discharged through the chimney 11.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hazardous material sintering flue gas treatment apparatus comprising an air inlet hole (1), characterized in that: The air inlet hole (1) one side fixed connection has dust removal mechanism (2), dust removal mechanism (2) upper end fixed connection has cooling pipe (3), cooling pipe (3) lower end fixed connection has humidity monitor (4), humidity monitor (4) lower end and one side fixed connection has electromagnetic valve (5), two electromagnetic valve (5) lower end is fixedly connected with dehumidification mechanism (6) and connecting box (7) respectively, the connecting box (7) one side fixed connection has filtering mechanism (8), filtering mechanism (8) one side fixed connection has spray mechanism (9), spray mechanism (9) upper end fixed connection has demister (10), demister (10) upper end fixed connection has chimney (11).

2. A hazardous material incineration flue gas treatment apparatus according to claim 1, characterized by: The dust removal mechanism (2) comprises a smoke storage box (201), the smoke storage box (201) is fixedly connected with a dust collection box (204) at the lower end, the smoke storage box (201) is fixedly connected with a power box (202) on one side, and the inner wall of the smoke storage box (201) is fixedly connected with a dust removal plate (203).

3. A hazardous material incineration flue gas treatment apparatus according to claim 1, characterized by: The dehumidification mechanism (6) comprises a condensing pipe (601), the condensing pipe (601) is fixedly connected with a condensate tank (602) outside, and the condensate tank (602) is provided with a liquid exchange opening (604) outside.

4. A hazardous material incineration flue gas treatment apparatus according to claim 3, characterized by: The condensing pipe (601) is fixedly connected with a water outlet (603) at the lower end.

5. A hazardous material incineration flue gas treatment apparatus according to claim 1, characterized by: The filtering mechanism (8) comprises a filter box (801), and the inner side of the filter box (801) is fixedly connected with a first filter plate (802), a second filter plate (805), a third filter plate (806), a first baffle (803) and a second baffle (807) respectively.

6. A hazardous material incineration flue gas treatment apparatus according to claim 5, characterized by: The first baffle (803) and the second baffle (807) are fixedly connected with a one-way valve (804) at the lower end of one side and the upper end of one side respectively.

7. A hazardous material incineration flue gas treatment apparatus according to claim 1, characterized by: The spray mechanism (9) comprises a waste liquid tank (901), the waste liquid tank (901) is fixedly connected with a spray tank (902) at the upper end, the spray tank (902) is fixedly connected with a liquid storage tank (905) on one side, the liquid storage tank (905) is fixedly connected with a conduit (904) on one side, and the conduit (904) is fixedly connected with a spray head (903) at the lower end.

Images