Environment-friendly treatment device for low-temperature flue gas of glass kiln

The glass furnace exhaust gas treatment system uses a static precipitator with a gas flow distributor and subsequent desulfurization and denitrification units to enhance fine particle removal and convert harmful gases, addressing inefficiencies in existing systems and ensuring effective pollutant reduction and operational reliability.

CN223096464UActive Publication Date: 2025-07-15BEIJING JIYUAN ZINENG ENVIRONMENTAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421631391.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-11
Publication Date
2025-07-15
Estimated Expiration
2034-07-11

AI Technical Summary

Technical Problem

In the prior art, the cyclone dust collector has a low efficiency in removing fine particulate matter in the flue gas of the glass kiln, and lacks effective sulfur dioxide and nitrogen oxide treatment methods, resulting in high emissions of flue gas pollutants.

Method used

The electrostatic dust removal device is used to combine airflow distribution plates, combined with desulfurization and denitrification equipment. The electrostatic dust removal device is used to remove fine dust, the desulfurization equipment removes sulfur dioxide, the denitrification equipment converts nitrogen oxides into harmless substances, and collects dust through the dust collection device and cleaning mechanism, and the cleaning mechanism in the precipitation tank prevents dust from agglomeration.

Benefits of technology

It improves the dust removal efficiency of flue gas, effectively removes fine dust and harmful gases, reduces environmental and human body hazards, and ensures the long-term and stable operation of the device.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223096464U_ABST
    Figure CN223096464U_ABST
Patent Text Reader

Abstract

The utility model provides a glass kiln low-temperature flue gas environment-friendly treatment device which comprises a gas inlet pipe, one end of the gas inlet pipe is communicated with a gas inlet of an electrostatic dust collection bin, the inner wall of the electrostatic dust collection bin is fixedly connected with a gas flow uniform distribution plate, an electrostatic dust collection device is arranged in the electrostatic dust collection bin, and the gas flow uniform distribution plate is communicated with a gas outlet of the electrostatic dust collection bin. The electrostatic dust collection device is installed below the electrostatic dust collection bin, when flue gas of the glass kiln is treated, the electrostatic dust collection device is combined with the airflow uniform distribution plate, it can be guaranteed that the flue gas is evenly distributed in the electrostatic dust collection bin, and therefore the dust collection efficiency is improved, fine dust particles in the flue gas can be effectively removed through the electrostatic dust collection device, and the dust collection effect is good. The dust hopper is communicated with the bottom side of the electrostatic dust collection bin, dust particles captured in the electrostatic dust collection bin can be effectively collected, the cleaning mechanism used for cleaning the inner wall of the sedimentation tank is arranged in the sedimentation tank, the inner wall of the sedimentation tank is cleaned regularly, the dust particles can be prevented from being accumulated on the inner wall to form cakes, and the using effect and the service life of the sedimentation tank are guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment of glass furnaces, in particular to an environmental protection treatment device for low-temperature flue gas of glass furnaces. Background Art

[0002] A glass furnace is a melting device necessary for the glass manufacturing industry. In the float glass industry, heavy oil is generally used as fuel. The sulfur content of heavy oil and the mirabilite in the glass batch lead to a large amount of sulfur dioxide in the flue gas, causing air pollution. The treatment of flue gas from glass furnaces is an indispensable part of the glass production process. By taking appropriate treatment measures and technical means, the emission concentration of flue gas and the emission amount of pollutants can be effectively reduced, and the sustainable development of glass production can be achieved.

[0003] In the process of glass processing, high-temperature flue gas is generated by glass furnaces. The high-temperature flue gas generated by glass furnaces usually needs to be treated by a cooling device to reduce its temperature and facilitate subsequent flue gas treatment processes. Moreover, the flue gas often contains various harmful gases such as fine particles of metals and non-metals, sulfur dioxide, nitrogen oxides, and hydrocarbons. In the prior art, a cyclone dust collector is mostly used for the treatment of flue gas from glass furnaces. However, the cyclone dust collector can only remove a part of the dust, and its dust removal effect is limited. It mainly targets larger particle-size dust, and the removal efficiency for fine particles is relatively low.

[0004] Therefore, it is necessary to provide a new environmental protection treatment device for low-temperature flue gas of glass furnaces to solve the above technical problems. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an environmental protection treatment device for low-temperature flue gas of glass furnaces.

[0006] The environmental protection treatment device for low-temperature flue gas of glass furnaces provided by the utility model includes: an intake pipe, one end of the intake pipe is communicated with the air inlet of an electrostatic dust removal bin, an air flow distribution plate is fixedly connected to the inner wall of the electrostatic dust removal bin, an electrostatic dust removal device is arranged in the electrostatic dust removal bin, and a dust collection device is installed below the electrostatic dust removal bin. The air outlet of the electrostatic dust removal bin is communicated with the air inlet of a desulfurization device through a pipeline, the air outlet of the desulfurization device is connected to a denitration device through a pipeline, an exhaust pipe is arranged above the denitration device, and a solenoid valve is arranged at the exhaust pipe;

[0007] The dust collection device includes a hopper and a sedimentation tank. The upper side of the hopper is communicated with the bottom side of the electrostatic dust removal bin, the bottom end of the hopper is communicated with the sedimentation tank, a water inlet and a water outlet are respectively arranged on the side wall and the bottom side of the sedimentation tank, and a cleaning mechanism for cleaning the inner wall of the sedimentation tank is arranged in the sedimentation tank.

[0008] Preferably, the cleaning mechanism includes a scraper, a driving motor, a reciprocating lead screw and a fixed rod. The outer side wall of the scraper is attached to the inner side wall of the sedimentation tank. One end of the scraper is threadedly connected to the reciprocating lead screw. One end of the reciprocating lead screw is fixedly connected to the side wall of the sedimentation tank. The side wall of the driving motor is fixedly connected to the side wall of the sedimentation tank. The output end of the driving motor movably penetrates through the side wall of the sedimentation tank and is fixedly connected to the other end of the reciprocating lead screw. The other end of the scraper is movably connected to the fixed rod. Both ends of the fixed rod are respectively fixedly connected to both sides of the inner wall of the sedimentation tank.

[0009] Preferably, the desulfurization device includes a first water tank for containing sodium hydroxide solution. An air inlet and an air outlet are respectively provided on the side wall and the upper end of the first water tank.

[0010] Preferably, the denitration device includes a second water tank for containing an absorbent. A partition is fixedly arranged at the upper end of the inner wall of the second water tank. The bottom side of the partition is lower than the liquid level height of the absorbent.

[0011] Preferably, the electrostatic precipitator includes a cathode device and an anode device for electrostatic precipitation.

[0012] Preferably, cathode wire frames are respectively arranged at the upper and lower ends of the cathode device. The cathode device is composed of a metal wire and discharge sheets fixedly spaced on the metal wire. The metal wire is electrically connected to the cathode wire frame. The cathode wire frame is electrically connected to the negative pole of a constant current power supply. The anode device is a honeycomb structure composed of a plurality of cylindrical barrels. The cylindrical barrels communicate with each other up and down. The cathode device is arranged inside the cylindrical barrels. The anode device is made of stainless steel thin plate material. The anode device is connected to the ground.

[0013] Compared with the related art, the glass furnace low-temperature flue gas environmental protection treatment device provided by the present utility model has the following beneficial effects:

[0014] The utility model provides an environmental protection treatment device for low-temperature flue gas of a glass furnace. When treating the flue gas of the glass furnace, the electrostatic dust removal device combined with the air distribution plate can ensure the uniform distribution of the flue gas in the electrostatic dust removal bin, thereby improving the dust removal efficiency. Moreover, the electrostatic dust removal device can effectively remove fine dust particles in the flue gas. The desulfurization equipment can remove sulfur dioxide in the flue gas, and the denitration equipment can convert nitrogen oxides in the flue gas into harmless nitrogen and water, reducing the harm of harmful gases to the environment and human body. The ash hopper is connected to the bottom side of the electrostatic dust removal bin, which can effectively collect the dust particles captured in the electrostatic dust removal bin. The dust settles into the sedimentation tank, further promoting the precipitation and solidification of the dust. A cleaning mechanism for cleaning the inner wall is provided in the sedimentation tank. Regularly cleaning the inner wall of the sedimentation tank can prevent the accumulation of dust particles on the inner wall to form lumps, ensuring the use effect and service life of the sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the environmental protection treatment device for low-temperature flue gas of the glass furnace provided by the utility model;

[0016] Figure 2 is a schematic diagram of the structure of the dust collection device provided by the utility model;

[0017] Figure 3 is a schematic diagram of the partial structure of the dust collection device provided by the utility model;

[0018] Figure 4 is a schematic cross-sectional structure diagram of the electrostatic dust removal device provided by the utility model;

[0019] Figure 5 is a schematic cross-sectional structure diagram of the desulfurization equipment provided by the utility model;

[0020] Figure 6 is a schematic cross-sectional structure diagram of the denitration equipment provided by the utility model.

[0021] Reference numerals in the figures: 1, electrostatic dust removal bin; 2, air distribution plate; 3, solenoid valve; 4, ash hopper; 5, sedimentation tank; 6, scraper; 7, drive motor; 8, reciprocating lead screw; 9, fixed rod; 10, first water tank; 11, baffle; 12, second water tank; 13, partition; 14, metal wire; 15, discharge plate; 16, cathode wire frame; 17, anode device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the technical means, creative features, achieved objectives and functions realized by the present utility model easy to understand, the following will further elaborate on the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Please refer to Figures 1 - 6 , Figure 1 which is the overall structural schematic diagram of the flue gas environmental protection treatment device for low-temperature flue gas of a glass furnace provided by the present utility model; Figure 2 which is the structural schematic diagram of the dust collection device provided by the present utility model;

[0025] Figure 3 which is the partial structural schematic diagram of the dust collection device provided by the present utility model; Figure 4 which is the cross-sectional structural schematic diagram of the electrostatic precipitator provided by the present utility model; Figure 5 which is the cross-sectional structural schematic diagram of the desulfurization equipment provided by the present utility model; Figure 6 which is the cross-sectional structural schematic diagram of the denitration equipment provided by the present utility model.

[0026] In the specific implementation process, as Figures 1 - 6 shown, a flue gas environmental protection treatment device for low-temperature flue gas of a glass furnace includes an intake pipe, one end of the intake pipe is connected to the air inlet of the electrostatic precipitation chamber 1, an air flow distribution plate 2 is fixedly connected to the inner wall of the electrostatic precipitation chamber 1, an electrostatic precipitator is arranged in the electrostatic precipitation chamber 1, and a dust collection device is installed below the electrostatic precipitation chamber 1. The air outlet of the electrostatic precipitation chamber 1 is connected to the air inlet of the desulfurization equipment through a pipeline, the air outlet of the desulfurization equipment is connected to the denitration equipment through a pipeline, an exhaust pipe is arranged above the denitration equipment, a solenoid valve 3 is arranged at the exhaust pipe, the dust collection device includes a hopper 4 and a sedimentation tank 5. The upper side of the hopper 4 is connected to the bottom side of the electrostatic precipitation chamber 1, the bottom end of the hopper 4 is communicated with the sedimentation tank 5, a water inlet and a drain outlet are respectively arranged on the side wall and the bottom side of the sedimentation tank 5, and a cleaning mechanism for cleaning the inner wall of the sedimentation tank 5 is arranged in the sedimentation tank 5;

[0027] When the utility model is used to treat the flue gas of a glass furnace, the electrostatic dust removal device combined with the air distribution plate 2 can ensure the uniform distribution of the flue gas in the electrostatic dust removal bin 1, thereby improving the dust removal efficiency. Moreover, the electrostatic dust removal device can effectively remove the fine dust particles in the flue gas. The desulfurization equipment can remove sulfur dioxide in the flue gas, and the denitration equipment can convert nitrogen oxides in the flue gas into harmless nitrogen and water, reducing the harm of harmful gases to the environment and human body. The ash hopper 4 is connected to the bottom side of the electrostatic dust removal bin 1 and can effectively collect the dust particles captured in the electrostatic dust removal bin 1. The dust settles and falls into the sedimentation tank 5, further promoting the precipitation and solidification of the dust. A cleaning mechanism for cleaning the inner wall of the sedimentation tank 5 is provided in the sedimentation tank 5, and the inner wall of the sedimentation tank 5 can be cleaned regularly;

[0028] Specifically, the cleaning mechanism includes a scraper 6, a driving motor 7, a reciprocating screw rod 8, and a fixing rod 9. The outer side wall of the scraper 6 is attached to the inner side wall of the sedimentation tank 5. One end of the scraper 6 is threadedly connected to the reciprocating screw rod 8. One end of the reciprocating screw rod 8 is fixedly connected to the side wall of the sedimentation tank 5. The side wall of the driving motor 7 is fixedly connected to the side wall of the sedimentation tank 5. The output end of the driving motor 7 movably penetrates the side wall of the sedimentation tank 5 and is fixedly connected to the other end of the reciprocating screw rod 8. The other end of the scraper 6 is movably connected to the fixing rod 9. Both ends of the fixing rod are respectively fixedly connected to both sides of the inner wall of the sedimentation tank 5. It should be noted that the scraper 6 is closely attached to the inner side wall of the sedimentation tank 5 and can reciprocate along the inner wall of the sedimentation tank 5 under the drive of the driving motor 7 and the reciprocating screw rod 8 to clean the side wall of the sedimentation tank 5. By regularly cleaning the inner wall of the sedimentation tank 5, it is possible to prevent dust particles from accumulating and forming lumps on the inner wall, ensuring the use effect and service life of the sedimentation tank 5;

[0029] The desulfurization equipment includes a first water tank 10 for containing sodium hydroxide solution. An air inlet and an air outlet are respectively provided on the side wall and the upper end of the first water tank 10. A plurality of baffles 11 are arranged in a relatively staggered manner on the side wall of the first water tank 10. This structure can remove sulfur dioxide in the flue gas. The flue gas containing sulfur oxides passes through the sodium hydroxide solution to form sulfates or sulfuric acid, thereby removing sulfur oxides;

[0030] The denitration equipment includes a second water tank 12 for containing an absorbent. A partition 13 is fixedly arranged at the upper end of the inner wall of the second water tank 12. The bottom side of the partition 13 is lower than the liquid level of the absorbent. The flue gas containing nitrogen oxides is passed through the absorbent to cause the nitrogen oxides to react with the absorbent to form nitrates or ammonium salts, thereby removing nitrogen oxides;

[0031] The electrostatic dust removal device includes a cathode device and an anode device 17 for electrostatic dust removal. Cathode wire frames 16 are respectively arranged at the upper and lower ends of the cathode device. The cathode device consists of a metal wire 14 and discharge sheets 15 fixedly spaced on the metal wire 14. The metal wire 14 is electrically connected to the cathode wire frames 16, and the cathode wire frames 16 are electrically connected to the negative pole of a constant current power supply. The anode device 17 is a honeycomb structure composed of a plurality of cylindrical barrels. The cylindrical barrels communicate with each other up and down, and the cathode device is arranged inside the cylindrical barrels. The anode device 17 is made of stainless steel thin plate material and is connected to the ground. It should be noted that the cathode device is the negative part in the electrostatic dust removal process, responsible for generating an electric field and causing dust to become charged. The anode device 17 is the positive part in the electrostatic dust removal process, responsible for collecting the charged dust. When the constant current power supply is energized, the cathode device (the metal wire 14 and the discharge sheets 15) will generate an electric field. Under the action of the electric field, the dust particles will be negatively charged. The charged dust particles will move towards the positive pole under the action of the electric field and will finally be collected by the anode device 17 to achieve the purpose of flue gas purification. And after power-off, the dust particles will fall into the ash hopper 4 for subsequent treatment of the dust particles.

[0032] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated here.

[0033] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. An environmental protection treatment device for low-temperature flue gas of a glass furnace, characterized in that, Comprising: an intake pipe, one end of the intake pipe is connected to the air inlet of the electrostatic precipitator bin (1), an air flow distribution plate (2) is fixedly connected to the inner wall of the electrostatic precipitator bin (1), an electrostatic dust removal device is arranged in the electrostatic precipitator bin (1), and a dust collection device is installed below the electrostatic precipitator bin (1). The air outlet of the electrostatic precipitator bin (1) is connected to the air inlet of the desulfurization equipment through a pipeline. The air outlet of the desulfurization equipment is connected to the denitration equipment through a pipeline. An exhaust pipe is arranged on the upper side of the denitration equipment, and a solenoid valve (3) is arranged at the exhaust pipe; The dust collection device includes a dust hopper (4) and a sedimentation tank (5). The upper side of the dust hopper (4) is connected to the bottom side of the electrostatic precipitator bin (1). The bottom end of the dust hopper (4) is connected to the sedimentation tank (5). An inlet and a drain are respectively arranged on the side wall and the bottom side of the sedimentation tank (5). A cleaning mechanism for cleaning the inner wall thereof is arranged in the sedimentation tank (5).

2. The flue gas environmental protection treatment device for low-temperature flue gas of a glass furnace according to claim 1, wherein, The cleaning mechanism includes a scraper (6), a driving motor (7), a reciprocating lead screw (8) and a fixing rod (9). The outer side wall of the scraper (6) is attached to the inner side wall of the sedimentation tank (5). One end of the scraper (6) is threadedly connected to the reciprocating lead screw (8). One end of the reciprocating lead screw (8) is fixedly connected to the side wall of the sedimentation tank (5). The side wall of the driving motor (7) is fixedly connected to the side wall of the sedimentation tank (5). The output end of the driving motor (7) movably penetrates through the side wall of the sedimentation tank (5) and is fixedly connected to the other end of the reciprocating lead screw (8). The other end of the scraper (6) is movably connected to the fixing rod (9). Both ends of the fixing rod are respectively fixedly connected to both sides of the inner wall of the sedimentation tank (5).

3. The environmental protection treatment device for low-temperature flue gas of a glass furnace according to claim 2, wherein, The desulfurization equipment includes a first water tank (10) for containing sodium hydroxide solution. An air inlet and an air outlet are respectively arranged on the side wall and the upper end of the first water tank (10).

4. The flue gas environmental protection treatment device for low-temperature flue gas of a glass furnace according to claim 3, characterized in that The denitration equipment includes a second water tank (12) for containing an absorbent. A partition plate (13) is fixedly arranged at the upper end of the inner wall of the second water tank (12). The bottom side of the partition plate (13) is lower than the liquid level height of the absorbent.

5. The environmental protection treatment device for low-temperature flue gas of a glass furnace according to claim 4, characterized in that The electrostatic dust removal device includes a cathode device and an anode device (17) for electrostatic dust removal.

6. The flue gas environmental protection treatment device for low-temperature flue gas of a glass furnace according to claim 5, wherein The cathode device is respectively provided with cathode wire frames (16) at the upper and lower ends. The cathode device is composed of a metal wire (14) and discharge sheets (15) fixedly spaced on the metal wire (14). The metal wire (14) is electrically connected to the cathode wire frame (16). The cathode wire frame (16) is electrically connected to the negative pole of a constant current power supply. The anode device (17) is a honeycomb structure composed of a plurality of cylindrical barrels. The cylindrical barrels communicate up and down. The cathode device is arranged in the cylindrical barrels. The anode device (17) is made of stainless steel thin plate material and is connected to the ground.