Gas guide device and melting furnace flue gas purification equipment

Abstract

The utility model discloses a gas guide device and melting furnace flue gas purification equipment, the gas guide device comprises a gas guide part and a gas outlet part, the gas guide part defines a gas guide channel, and the gas guide part is provided with a gas guide port communicated with the gas guide channel. In some embodiments, the air guide portion can communicate with an external air source. The air outlet part is connected to the air guide part and defines an air outlet channel, one end of the air outlet channel is an air outlet, the other end of the air outlet channel is communicated with the air guide port, and the air outlet faces the filter pipe assembly, so that the sweeping air is guided to the filter pipe assembly to achieve the effect of cleaning dust on the surface of the filter pipe assembly. The air outlet part is further provided with an air inlet, the air inlet is located between the air guide opening and the air outlet, and the air inlet is communicated with the air outlet channel. Gas on the peripheral side of the gas outlet part can enter the gas outlet channel through the gas inlet, and the purging effect is enhanced. It is ensured that external air can be supplemented into the air outlet channel in the blowing process, the blowing efficiency is improved, and the situation that the purification effect is affected due to dust accumulation on the surface of the filter pipe assembly is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to an air guide device and furnace flue gas purification equipment. Background Art

[0002] In the glass production process, the glass kiln is the core equipment, and its combustion process will inevitably produce a large amount of sulfur dioxide (SO2), nitrogen oxides (NOx) and dust particles. If these pollutants are directly discharged into the atmosphere without treatment, they will not only cause serious environmental problems such as acid rain and photochemical smog, but also pose a direct threat to air quality and human health. For this reason, ceramic filter tubes are usually used in related technologies to purify flue gas. However, since a large amount of dust will be adsorbed on the surface of the ceramic filter tube after long-term use, the low air pressure of the back-blowing device in the traditional technology has a poor cleaning effect on the ceramic filter tube, which seriously affects the purification effect of the ceramic filter tube on the flue gas. Utility Model Content

[0003] The main purpose of the utility model is to provide an air guide device and a melting furnace fume purification device, aiming to solve the technical problem of how to increase the air pressure of the gas ejected by the air guide device and enhance the fume purification effect of the melting furnace fume purification device on the fume.

[0004] To achieve the above-mentioned purpose, the utility model proposes an air guide device, which is suitable for a melting furnace fume purification device. The melting furnace fume purification device includes a filter tube assembly, and the air guide device includes:

[0005] An air guide portion defines an air guide channel, and the air guide portion is provided with an air guide port connected to the air guide channel;

[0006] An air outlet portion connected to the air guide portion, the air outlet portion defines an air outlet channel, one end of the air outlet channel is provided with an air outlet, the other end is connected to the air guide port, and the air outlet faces the filter tube assembly;

[0007] Among them, the air outlet part is also provided with an air inlet located between the air guide port and the air outlet, and the air inlet is connected to the air outlet channel, so that when the purge gas flows to the air outlet through the air outlet channel, the gas around the air outlet part can enter the air outlet channel through the air inlet.

[0008] In some embodiments, the air inlet is located at one end of the air outlet portion close to the air guide portion.

[0009] In some embodiments, the air outlet portion has a mounting end arranged opposite to the air outlet, the mounting end has an opening connected to the air outlet channel, and the air outlet portion has a plurality of air inlets arranged around the circumference of the mounting end, and the side of each air inlet facing away from the air outlet passes through the mounting end and is connected to the opening.

[0010] In some embodiments, the air guiding device includes a plurality of the air outlet parts. The air guiding part is configured as a hollow cylinder, and the air outlet part is configured as a hollow cylinder. Each of the air outlet parts is arranged at intervals along the extending direction of the air guiding part. The air inlet includes a first air hole and a second air hole. The first air hole is arranged along the extending direction of the air guiding part, and the second air hole is arranged adjacent to the first air hole. Along the extending direction of the air outlet part, the size of the first air hole is larger than that of the second air hole.

[0011] In some embodiments, the axis of the air inlet inclines towards the air guiding part relative to the axis of the air outlet channel.

[0012] The second aspect of the present utility model further provides a melting furnace flue gas purification device, including:

[0013] A box body configured to have an accommodating space;

[0014] A filter tube assembly including a plurality of ceramic filter tubes. Each of the ceramic filter tubes is arranged in an array in the accommodating space. The filter tube assembly is suitable for purifying the flue gas in the melting furnace; and

[0015] The air guiding device according to any one of the above embodiments. The air guiding device is connected to the box body, and at least part of the air outlet part and the air guiding part is located in the accommodating space;

[0016] Wherein, the air guiding device includes a plurality of the air guiding parts. Each of the air guiding parts corresponds to each column of the ceramic filter tubes one by one, and each of the air guiding parts is connected to a plurality of the air outlet parts. Each of the air outlet parts corresponds to each of the ceramic filter tubes one by one.

[0017] In some embodiments, the melting furnace flue gas purification device further includes a hopper detachably connected to the box body. The hopper has an ash collection space. Along the extending direction of the air outlet channel, the cross-sectional area of the ash collection space gradually decreases. The hopper is located below the filter tube assembly and the ash collection space communicates with the accommodating space.

[0018] In some embodiments, the air guiding device further includes an air storage mechanism. The air storage mechanism is connected to the air guiding part, and the air storage mechanism has an air storage cavity communicating with each of the air guiding channels.

[0019] In some embodiments, the air guiding device further includes a control valve. The control valve is installed on the air guiding part and is configured to be able to cut off or connect the air guiding channel with the air storage cavity.

[0020] In some embodiments, the air guiding device includes a plurality of the control valves and a controller. Each of the control valves is installed between each air guiding part and the air storage mechanism. The controller is electrically connected to each of the control valves, and the controller is configured to be able to control each of the control valves to work successively, so that each air guiding channel is successively communicated with or blocked from the air storage cavity.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] In the technical solution of the present utility model, the air guiding device includes an air guiding part and an air outlet part. The air outlet part is connected to the air guiding part. The air guiding part defines an air guiding channel, and the air guiding part has an air guiding port communicating with the air guiding channel. The air outlet part defines an air outlet channel. The air outlet part further has an air outlet. The air outlet communicates with the air guiding channel. The air outlet part is further provided with an air inlet located between the air guiding port and the air outlet. The air inlet communicates with the air outlet channel. When the purging gas flows from the air outlet channel to the air outlet, the air flow velocity in the air outlet channel is greater than the air flow velocity outside the air outlet part. Therefore, the pressure in the air outlet channel is lower than the pressure on the periphery of the air outlet part. The gas on the periphery of the air outlet part can enter the air outlet channel through the air inlet, thereby increasing the air flow rate ejected from the air outlet, further increasing the air pressure intensity acting on the filter tube assembly, further improving the dust cleaning effect of the air guiding device on the filter tube assembly, and furthermore, improving the purification effect of the melting furnace flue gas purification equipment with the air guiding device on the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0024] Figure 1 It is a schematic structural diagram of the melting furnace flue gas purification equipment from the first perspective in an embodiment of the present utility model;

[0025] Figure 2 It is a sectional view of the melting furnace flue gas purification equipment in an embodiment of the present utility model;

[0026] Figure 3 It is for the melting furnace flue gas purification equipment in an embodiment of the present utility model at Figure 2 the enlarged schematic view at A;

[0027] Figure 4 It is for the melting furnace flue gas purification equipment in an embodiment of the present utility model at Figure 3 the enlarged schematic view at B;

[0028] Figure 5 This is a schematic structural diagram of the air outlet part in an embodiment of the present utility model.

[0029] Explanation of the reference numerals in the drawings:

[0030] Melting furnace flue gas purification equipment 10;

[0031] Gas guiding device 100;

[0032] Gas guiding part 110;

[0033] Gas guiding channel 111; gas guiding port 112;

[0034] Air outlet part 120;

[0035] Air outlet channel 121; air outlet 122; air inlet 123; first air hole 1231; second air hole 1232;

[0036] Installation end 124; opening 1241;

[0037] Gas storage mechanism 130;

[0038] Control valve 140;

[0039] Box body 200; accommodating space 210;

[0040] Filter tube assembly 300; ceramic filter tube 310;

[0041] Ash hopper 400; ash collection space 410;

[0042] Purge gas 20;

[0043] Gain gas 30.

[0044] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0045] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0046] Traditional flue gas treatment methods mostly adopt a segmented treatment mode, that is, desulfurization, denitrification and dust removal devices are set up separately. This treatment method not only occupies a large area and has high investment costs, but also it is difficult to form a synergistic effect between each treatment unit, and the treatment efficiency is limited. In addition, traditional dust removal devices such as bag filters are prone to problems such as bag fouling and high operating resistance when facing dust particles with high viscosity and small particle size in the flue gas of glass furnaces, which affects the dust removal effect and the service life of the equipment.

[0047] In response to the above problems, in recent years, the sulfur-dust-nitrogen integration device has emerged as an integrated system for desulfurization, denitrification and dust removal of the flue gas of melting furnaces and has quickly become the mainstream facility for flue gas treatment of glass furnaces. By integrating desulfurization, denitrification and dust removal functions, this device realizes the coordinated treatment of various pollutants in the flue gas, not only improving the treatment efficiency, but also significantly reducing the floor area and investment costs.

[0048] In the sulfur-dust-nitrogen integrated treatment system, the reactor is the core equipment, and its performance directly determines the treatment effect of the entire system. And the ceramic filter tube, the core component of the reactor, is the key technology. The ceramic filter tube shows unique advantages in the field of flue gas purification due to its high temperature resistance, corrosion resistance, high mechanical strength and other advantages. However, the applicant has found that after long-term use, a large amount of dust is likely to accumulate on the surface of the ceramic filter tube, seriously affecting the purification effect. In related technologies, pulse backwashing of the ceramic filter tube is usually used to clean the dust on the surface of the ceramic filter tube. In the pulse backwashing technology, an air storage tank is usually provided. However, due to the large number of ceramic filter tubes in the sulfur-dust-nitrogen integrated treatment system and the large amount of gas required, during the dust cleaning process, the pressure of the air storage tank drops rapidly, the sprayed air pressure is small, the dust cleaning effect is poor, and it is easy to cause incomplete dust cleaning of the ceramic filter tube, affecting its purification effect on soot.

[0049] In view of this, please refer to Figures 1 to 5, the present utility model provides an air guiding device 100, which can be applied to a melting furnace flue gas purification device 10 or other devices that need to increase the pressure of the ejected gas. For the convenience of description, the following takes the air guiding device 100 being used in the melting furnace flue gas purification device 10 as an example for illustration. The melting furnace flue gas purification device 10 includes a filter tube assembly 300, which can purify the flue gas. The purification treatment includes, but is not limited to, desulfurization, denitrification, dust removal and other treatments of the flue gas. The air guiding device 100 includes an air guiding part 110 and an air outlet part 120. The air guiding part 110 defines an air guiding channel 111, and the air guiding part 110 is provided with an air guiding port 112 communicating with the air guiding channel 111. In some embodiments, the air guiding part 110 can communicate with an external gas source. The air outlet part 120 is connected to the air guiding part 110. The air outlet part 120 defines an air outlet channel 121. One end of the air outlet channel 121 is an air outlet 122, and the other end communicates with the air guiding port 112. The air outlet 122 faces the filter tube assembly 300, so that the purging gas 20 is guided to the filter tube assembly 300 to achieve the effect of cleaning the surface of the filter tube assembly 300. Among them, the air outlet part 120 is also provided with an air inlet 123, which is located between the air guiding port 112 and the air outlet 122, and the air inlet 123 communicates with the air outlet channel 121. When the purging gas 20 flows through the air outlet channel 121 towards the air outlet 122, the air flow velocity in the air outlet channel 121 is greater than the air flow velocity outside the air outlet part 120. Therefore, the pressure in the air outlet channel 121 is lower than the pressure on the periphery of the air outlet part 120. The gas on the periphery of the air outlet part 120 (for the convenience of description, the gas on the periphery of the air outlet part 120 is defined as the gain gas 30) can enter the air outlet channel 121 through the air inlet 123 to enhance the purging effect. This design ensures that during the purging process, external gas can be supplemented into the air outlet channel 121, that is, the gain gas 30 can enter the air outlet channel 121 through the air inlet 123 to mix with the purging gas 20 and flow out from the air outlet 122, improving the purging efficiency and preventing dust accumulation on the surface of the filter tube assembly 300 from affecting the purification effect.

[0050] It can be understood that in some embodiments, the materials of the air guiding part 110 and the air outlet part 120 can be selected as materials with high temperature resistance and good air tightness, including but not limited to metal alloys, high temperature engineering plastics (such as polyphenylene sulfide, polyether ether ketone, and polyimide), and high temperature rubbers (such as silicone rubber and fluororubber), to ensure stable operation in a high temperature environment. In some embodiments, the air outlet part 120 and the air guiding part 110 can be prepared by an integrally formed method, including but not limited to die forming. In some other embodiments, the air outlet part 120 and the air guiding part 110 can be prepared by a method of separately manufacturing and then connecting. Taking the air outlet part 120 and the air guiding part 110 both being made of metal materials as an example, the air outlet part 120 can be connected to the air guiding part 110 by welding. It should be noted that the air guiding part 110 can adopt a hollow cylindrical pipe or a polygonal pipe with a hollow interior. Similarly, the air outlet part 120 can adopt a hollow cylindrical pipe or a polygonal pipe with a hollow interior. For the convenience of description, the following takes the air guiding part 110 and the air outlet part 120 both adopting hollow cylindrical pipes as an example for illustration.

[0051] Please refer to Figure 4 , in some embodiments, the air inlet 123 is located at one end of the air outlet part 120 close to the air guiding part 110. Thus, the gain gas 30 can be quickly replenished to the air outlet channel 121, reducing the gas pressure loss and improving the purging efficiency. In addition, the air inlet 123 being arranged at one end opposite to the air outlet 122 can effectively prevent the gain gas 30 from interfering with the air flow at the air outlet 122 during the process of entering the air outlet channel 121 through the air inlet 123, thereby affecting the air flow intensity of the air ejected from the air outlet 122, and further ensuring the intensity of the gas ejected from the air outlet 122, thus improving the dust cleaning effect of the filter tube assembly 300.

[0052] Please refer to Figure 5 , in some embodiments, the air outlet part 120 has a mounting end 124 opposite to the air outlet 122. An opening 1241 is provided on the mounting end 124, and the opening 1241 communicates with the air outlet channel 121. A plurality of air inlets 123 are provided on the circumferential side of the mounting end 124. These air inlets 123 are distributed around the mounting end 124, enhancing the uniform distribution of the gas and improving the purging effect.

[0053] It can be understood that in some embodiments, the size and distribution of the air inlet 123 can be set according to the actual use situation of the air guiding device 100, ensuring that the gas on the circumferential side of the air outlet part 120 can form a uniform air flow with the purging gas 20 after entering the air outlet channel 121, improving the cleaning effect on the filter tube assembly 300, and reducing the risk of blockage of the filter tube assembly 300.

[0054] Please refer to Figure 1 and Figure 2, in some embodiments, the air guiding device 100 includes a plurality of air outlet parts 120. Both the air guiding part 110 and the air outlet parts 120 are hollow cylindrical. Each air outlet part 120 is arranged at intervals along the extending direction of the air guiding part 110. For the convenience of description, it is defined that the air inlet 123 includes a first air hole 1231 and a second air hole 1232. In some embodiments, the shapes of the first air hole 1231 and the second air hole 1232 may be the same. The shapes of the first air hole 1231 and the second air hole 1232 include but are not limited to circular and polygonal shapes, etc. For the convenience of description, taking the shapes of the first air hole 1231 and the second air hole 1232 as circular as an example, along the extending direction of the air outlet part 120, the size of the first air hole 1231 is larger than that of the second air hole 1232. It should be noted that since the outer shape of the air guiding part 110 is cylindrical, in order to improve the connection reliability between the air outlet part 120 and the air guiding part 110, along the extending direction of the air guiding part 110, the space occupied by the air outlet part 120 by the air guiding part 110 is larger than the space occupied by the air outlet part 120 in the direction perpendicular to the extending direction of the air guiding part 110. Correspondingly, along the extending direction of the air guiding part 110, the space occupied by the first air hole 1231 by the air guiding part 110 is larger than the space occupied by the air guiding part 110 for the second air hole 1232. Thus, in order to ensure the uniformity of the gain gas 30 flowing into the air outlet channel 121 through the air inlet 123, the size of the first air hole 1231 is larger than that of the second air hole 1232.

[0055] In some embodiments, the axis of the air inlet 123 is inclined relative to the axis of the air outlet channel 121, and the axis of the air inlet 123 is inclined towards the direction close to the air guiding part 110. Thus, when the gain gas 30 flows into the air outlet channel 121 through the air inlet 123, the flowing direction of the gain gas 30 can fit the flowing direction of the purging gas 20 in the air outlet channel 121 itself, avoiding the gain gas 30 entering the air outlet channel 121 through the air inlet 123 from interfering with the flowing direction of the purging gas 20 itself, reducing the resistance of the gas flow in the air outlet channel 121, and further improving the purging efficiency. In some other embodiments, the axis of the air inlet 123 may also be perpendicular to the axis of the air outlet channel 121. It can be understood that the inclination angle of the axis of the air inlet 123 can be adjusted according to the actual working conditions to ensure the smooth introduction of the gain gas 30 into the air outlet channel 121, while reducing the pressure fluctuation of the gas inside the air outlet channel 121 and maintaining the air flow stability.

[0056] Please refer to Figures 1 to 4, in the second aspect of the present utility model, a melting furnace flue gas purification device 10 is further provided. The melting furnace flue gas purification device 10 includes a box body 200, a filter tube assembly 300, and the air guiding device 100 described in any of the above embodiments. The box body 200 is configured with an accommodating space 210. The filter tube assembly 300 includes multiple columns of ceramic filter tubes 310, that is, the ceramic filter tubes 310 are arranged in an array in the accommodating space 210. The air guiding device 100 is connected to the box body 200, and at least part of the air guiding part 110 and the air outlet part 120 are located in the accommodating space 210 (specifically, the air outlet part 120 is all located in the accommodating space 210, the connecting part of the air guiding part 110 and the air outlet part 120 is located in the accommodating space 210, and the other part of the air guiding part 110 can be located in the accommodating space 210 or outside the box body 200, and the specific setting position depends on the actual situation). Each column of ceramic filter tubes 310 corresponds to an air guiding part 110, and each ceramic filter tube 310 corresponds to an air outlet part 120. This ensures that the purging gas 20 can be evenly distributed to each ceramic filter tube 310, so as to improve the dust cleaning effect of the ceramic filter tubes 310, and further improve the flue gas purification efficiency. In addition, the overall layout of the air guiding device 100 improves the space utilization rate and gas flow efficiency of the melting furnace flue gas purification device 10.

[0057] Please refer to Figure 1 and Figure 2 , in some embodiments, the melting furnace flue gas purification device 10 further includes an ash hopper 400. The ash hopper 400 is detachably connected to the box body 200 so as to be able to clean the ash hopper 400. The ash hopper 400 is located below the filter tube assembly 300, and the ash collection space 410 is communicated with the accommodating space 210 to facilitate dust collection. It can be understood that, in some embodiments, the ash collection space 410 of the ash hopper 400 is designed such that the cross-sectional area of the ash collection space 410 gradually decreases along the direction of the air outlet channel 121, which helps the dust to settle naturally, reduces the possibility of the dust being carried up again by the air flow, and improves the purification effect. The detachable design of the ash hopper 400 is convenient for regular cleaning and maintenance.

[0058] Please refer to Figure 1 and Figure 2 , in some embodiments, the air guiding device 100 is provided with a gas storage mechanism 130. The gas storage mechanism 130 is connected to the air guiding part 110. The gas storage mechanism 130 has a gas storage cavity for storing gas to ensure the gas supply during the purging process. It can be understood that, in some embodiments, the addition of the gas storage mechanism 130 improves the stability of the gas supply, and can ensure the purging effect even when the gas source is unstable. The design of the gas storage cavity improves the air pressure balance and reduces the impact of air pressure mutation on the filter tube assembly 300. The air inlet 123 provided on the air outlet part 120 can reduce the gas consumption in the gas storage cavity and further reduce the air pressure change in the gas storage cavity.

[0059] Please refer to Figures 1 to 3, in some embodiments, the air guiding device 100 is configured with a control valve 140, which is installed on the air guiding part 110 and can control the connection state between the air guiding channel 111 and the air storage cavity, so as to achieve precise regulation of the gas flow rate. It can be understood that, in some embodiments, the use of the control valve 140 improves the flexibility of gas management, and the gas flow rate can be adjusted according to actual needs, avoiding energy waste caused by excessive purging.

[0060] Please refer to Figures 1 to 3 , in some embodiments, the air guiding device 100 includes a plurality of control valves 140 and a controller. Each control valve 140 is installed between the air guiding part 110 and the air storage mechanism 130, and the controller is electrically connected to the control valve 140. The controller can control the control valve 140 to work successively to achieve independent control of each air guiding channel 111. It can be understood that, in some embodiments, the design of multiple control valves 140 and the controller makes the purging process more intelligent, can dynamically adjust the gas distribution according to the needs of different regions, and improves the automation level and efficiency of the melting furnace flue gas purification equipment 10. It should be noted that the control valve 140 can be a pulse solenoid valve or a gas cylinder valve or other valves that can control the on-off of the gas flow.

[0061] Specifically, in one implementation manner, each column of ceramic filter tubes 310 shares a pulse solenoid valve for purging and the air guiding part 110. An air outlet part 120 with the same number as the number of rows of the ceramic filter tubes 310 is welded on each air guiding part 110, ensuring that there is an air outlet part 120 directly above each ceramic filter tube 310 vertically. The air guiding device 100 can adopt two control methods of "timed ash cleaning" and "differential pressure ash cleaning", and adopts the priority control principle. When the preset ash cleaning time arrives, timed ash cleaning takes priority; when the pressure in the accommodation space 210 or the air storage cavity meets the preset differential pressure, differential pressure ash cleaning takes priority. It should be noted that for timed ash cleaning: when the working time of the melting furnace flue gas purification equipment 10 meets the preset ash cleaning time, the melting furnace flue gas purification equipment 10 will automatically clean the ash, that is, the air guiding device 100 works. After the ash cleaning is completed, the working time of the melting furnace flue gas purification equipment 10 is timed again; for constant pressure ash cleaning: when the pressure difference between the inlet and outlet of the melting furnace flue gas purification equipment 10 reaches the set value, the melting furnace flue gas purification equipment 10 will automatically clean the ash, and after the ash cleaning is completed, the timing starts again.

[0062] In some implementation manners, the purging process of the air guiding device 100 for the ceramic filter tubes 310 during the working process of the melting furnace flue gas purification equipment 10 is as follows (the melting furnace flue gas purification equipment 10 includes a total of N columns of ceramic filter tubes 310):

[0063] The air storage mechanism 130 is inflated;

[0064] The pulse solenoid valve corresponding to the first column of ceramic filter tubes 310 is opened to purge the first column of ceramic filter tubes 310;

[0065] The pulse solenoid valve corresponding to the first column of ceramic filter tubes 310 is closed, and the gas storage mechanism 130 is inflated;

[0066] The pulse solenoid valve corresponding to the second column of ceramic filter tubes 310 is opened to purge the second column of ceramic filter tubes 310;

[0067] The pulse solenoid valve corresponding to the second column of ceramic filter tubes 310 is closed, and the gas storage mechanism 130 is inflated;

[0068] The pulse solenoid valve corresponding to the third column of ceramic filter tubes 310 is opened to purge the third column of ceramic filter tubes 310;

[0069] ……

[0070] The pulse solenoid valve corresponding to the Nth column of ceramic filter tubes 310 is closed, and the gas storage mechanism 130 is inflated;

[0071] The pulse solenoid valve corresponding to the Nth column of ceramic filter tubes 310 is opened to purge the Nth column of ceramic filter tubes 310.

[0072] The inflation requirement pressure of the gas storage mechanism 130 can be 0.4 - 0.6 MPa, the opening time of the pulse solenoid valve is 0.2 - 0.3 s, the pressure of the gas storage mechanism 130 drops to 0.15 - 0.2 MPa after a single purge, and the inflation time of the gas storage mechanism 130 is 25 - 30 s.

[0073] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, then the directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture. If the specific posture changes, then the directional indications will also change accordingly.

[0074] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present invention, then the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or", "or / and", or "and / or" appear throughout the text, their meanings include three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0075] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. An air guiding device is applicable to a melting furnace flue gas purification device, and the melting furnace flue gas purification device includes a filter tube assembly, characterized in that, The air guide device comprises: An air guide portion defines an air guide channel, and the air guide portion is provided with an air guide port connected to the air guide channel; An air outlet portion connected to the air guide portion, the air outlet portion defines an air outlet channel, one end of the air outlet channel is provided with an air outlet, the other end is connected to the air guide port, and the air outlet faces the filter tube assembly; Among them, the air outlet part is also provided with an air inlet located between the air guide port and the air outlet, and the air inlet is connected to the air outlet channel, so that when the purge gas flows to the air outlet through the air outlet channel, the gas around the air outlet part can enter the air outlet channel through the air inlet.

2. The gas guide device according to claim 1, characterized in that: The air inlet is located at one end of the air outlet portion close to the air guide portion.

3. The gas guide device according to claim 1, characterized in that: The air outlet portion has a mounting end arranged opposite to the air outlet, the mounting end has an opening connected to the air outlet channel, and the air outlet portion has a plurality of air inlets arranged around the circumference of the mounting end, and a side of each air inlet away from the air outlet passes through the mounting end and is connected to the opening.

4. The gas guide device according to claim 3, characterized in that: The air guide device includes a plurality of air outlets, wherein the air guide is configured as a hollow cylindrical shape, and each of the air outlets is arranged at intervals along the extension direction of the air guide, and the air inlet includes a first air hole and a second air hole, wherein the first air hole is arranged along the extension direction of the air guide, and the second air hole is arranged adjacent to the first air hole, and along the extension direction of the air outlet, the size of the first air hole is larger than the size of the second air hole.

5. The gas guide device according to claim 1, characterized in that: The axis of the air inlet is inclined relative to the axis of the air outlet passage toward a direction close to the air guide portion.

6. A melting furnace flue gas purification device, characterized in that, include: A box body, configured to have a containing space; A filter tube assembly, comprising a plurality of ceramic filter tubes, each of which is arranged in an array in the accommodating space, and the filter tube assembly is suitable for purifying the flue gas in the melting furnace; as well as The air guide device according to any one of claims 1 to 5, wherein the air guide device is connected to the box body, and the air outlet portion and at least part of the air guide portion are located in the accommodating space; Wherein, the air guide device includes a plurality of the air guide parts, each of the air guide parts corresponds one-to-one to each column of the ceramic filter tubes, and each of the air guide parts is connected to a plurality of the air outlet parts, and each of the air outlet parts corresponds one-to-one to each of the ceramic filter tubes.

7. The furnace fume purification device according to claim 6, characterized in that: The melting furnace flue gas purification equipment also includes an ash hopper detachably connected to the box body, the ash hopper has an ash collecting space, and the cross-sectional area of the ash collecting space gradually decreases along the extension direction of the air outlet channel. The ash hopper is located below the filter tube assembly and the ash collecting space is connected to the accommodating space.

8. The furnace fume purification device according to claim 6, characterized in that: The air guiding device further includes a gas storage mechanism, the gas storage mechanism is connected to the air guiding part, and the gas storage mechanism has a gas storage cavity communicating with each of the air guiding channels.

9. The glass melting furnace flue gas purification equipment according to claim 8, characterized in that The air guiding device further includes a control valve, the control valve is installed on the air guiding part and configured to be able to cut off or connect the air guiding channel to the gas storage cavity.

10. The glass melting furnace flue gas purification equipment according to claim 9, characterized in that The air guiding device includes a plurality of the control valves and a controller, each of the control valves is installed between each of the air guiding parts and the gas storage mechanism, the controller is electrically connected to each of the control valves, and the controller is configured to be able to control each of the control valves to work successively, so that each of the air guiding channels is successively connected or cut off from the gas storage cavity.

Images