Full-process anti-adhesion flue

Abstract

Embodiments of the present invention disclose a full-process anti-adhesion flue, which includes a main body and a protective gas distributor. The main body includes a vertical part and a horizontal part. The vertical part has a chamber, and the chamber is communicated with a reaction device. The flue gas in the reaction device is discharged into the chamber. The protective gas distributor is arranged in the chamber. At least part of the protective gas distributor is connected to the inner wall surface of the vertical part. The protective gas distributor has a gas inlet and a gas outlet that are communicated with each other. The gas inlet is adapted to introduce external protective gas, and the gas outlet is communicated with the chamber so that the external protective gas is discharged into the chamber. At least two protective gas distributors are arranged at intervals, and the external protective gas discharged from the gas outlet forms a gas circulation between adjacent protective gas distributors. The full-process anti-adhesion flue of the embodiments of the present invention has the functions of inhibiting the flue gas from approaching the inner wall surface of the flue main body, inhibiting the continuous adhesion of the flue gas on the inner wall surface of the main body, and breaking the slag blocks adhered to the inner wall surface of the main body.

Description

Technical Field

[0001] The present invention relates to the field of flue ducts of reaction equipment, and specifically, to a full-process anti-bonding flue duct. Background Art

[0002] During the production process of reaction equipment, a large amount of flue gas is often generated. Taking a metallurgical furnace as an example, during the smelting process, the dust generated in the furnace flows upward and is discharged through the flue duct. Since the dust is sticky and the overall temperature of the flue duct is lower than the temperature inside the metallurgical furnace, the flue gas is likely to adhere to the inner wall surface of the flue duct and form slag blocks when it rises in the flue duct. As the thickness of the slag block adhesion layer increases, the flow area of the flue gas in the flue duct becomes smaller, resulting in an increase in the flow resistance of the flue gas in the flue duct, making the flow of the flue gas in the flue duct unsmooth. If the flue gas generated by the incoming furnace materials cannot be discharged in time, the pressure inside the furnace will increase, which not only changes the reaction conditions inside the furnace but also causes a change in the intake air volume of the subsequent boiler section. In necessary cases, production needs to be stopped for maintenance.

[0003] The prior art usually only considers the anti-bonding treatment in a certain period during the bonding formation, and cannot achieve full-process anti-bonding before, during, and after the bonding. For example, coating the inner wall surface of the flue duct to reduce bonding. This form can only reduce the adsorption effect during the contact between the flue gas and the inner wall surface of the flue duct, but cannot actively inhibit the approach of the flue gas to the flue duct wall surface (before bonding) and cannot actively break the bond after the bond is formed. Once the first layer of slag block is formed in the flue duct, the protective effect will be significantly invalidated. The subsequent flue gas has a strong adsorption force on the initial slag block, and then rapid aggregation will occur in a short time, resulting in large-area bonding. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to some extent. For this purpose, an embodiment of the present invention provides a full-process anti-bonding flue duct. The full process of this full-process anti-bonding flue duct includes the entire process before, during, and after the bonding. This full-process anti-bonding flue duct can inhibit the approach of the flue gas bonding source to the flue duct before bonding, reduce the continuity of the contact surface during bonding so that there are no conditions for large-area caking of the flue gas, and actively break the bonding layer by gas purging after the bond is formed.

[0005] The full-process anti-bonding flue duct according to the embodiment of the present invention includes a main body. The main body includes a vertical part and a horizontal part. The vertical part has a chamber, and the chamber is communicated with the reaction equipment. The flue gas in the reaction equipment is discharged into the chamber. The horizontal part is arranged in the chamber. At least part of the horizontal part is connected to the inner wall surface of the vertical part. There are multiple horizontal parts. The multiple horizontal parts are at least divided into a group. At least one group of the horizontal parts is arranged at intervals around the inner wall surface of the vertical part. Each group of the horizontal parts includes a plurality of the horizontal parts arranged at intervals in the up-down direction;

[0006] A protective gas distributor is provided in the chamber. The protective gas distributor extends in the up-down direction, and at least a part of the protective gas distributor is connected to the inner wall surface of the vertical portion. There are at least two protective gas distributors, and at least two protective gas distributors are alternately arranged and connected with at least one group of the horizontal portions. The protective gas distributor has a gas inlet and a gas outlet that communicate with each other. The gas inlet is adapted to introduce external protective gas. The inner wall surface of the vertical portion, and the adjacent two horizontal portions in each group enclose a receiving space. The receiving space communicates with the chamber, and the gas outlet communicates with the receiving space so that the external protective gas discharged from the gas outlet flows into the receiving space, and the external protective gas discharged from the gas outlet forms an alternating flow in the receiving space;

[0007] The pressure of the external protective gas introduced into the gas inlet is higher than the pressure of the flue gas discharged from the reaction equipment into the chamber;

[0008] The protective gas distributor is provided with a first channel and a second channel. Both the first channel and the second channel extend in the up-down direction. The first channel and the second channel are arranged at intervals in the direction from the side of the protective gas distributor adjacent to the inner wall surface of the vertical portion to the side of the protective gas distributor away from the inner wall surface of the vertical portion. The lower ends of the first channel and the second channel are connected, the upper end of the second channel is closed, and the upper end of the first channel is connected to the gas inlet.

[0009] In the whole-process anti-bonding flue of the embodiment of the present invention, the protective gas distributor is provided in the chamber. The protective gas distributor is provided with a gas inlet and a gas outlet that communicate with each other. The gas inlet is adapted to introduce external protective gas, and the gas outlet is adapted to discharge the external protective gas in the adjacent two protective gas distributors and form an alternating flow in the receiving space and the adjacent area, so that the flue gas in the chamber is not likely to approach the inner wall surface of the vertical portion, the horizontal portion and the protective gas distributor before bonding. The whole-process anti-bonding flue of the embodiment of the present invention reduces the continuity of the contact surface with the flue gas, so that it is not easy for the flue gas to form large-area agglomerates on the surfaces of the inner wall surface of the vertical portion, the horizontal portion and the protective gas distributor during the bonding process. Even if the flue gas forms partial bonding on the wall surfaces of the inner wall surface of the vertical portion and the horizontal portion, the alternately flowing gas can scour the bonded slag blocks to break them. Therefore, the whole-process anti-bonding flue of the embodiment of the present invention can inhibit the approach of the flue gas bonding source to the surface of the whole-process anti-bonding flue of the embodiment of the present invention before bonding, reduce the continuity of the contact surface with the flue gas during bonding so that there are no conditions for large-area agglomerates of the flue gas, and actively break the agglomerates by gas purging after the bonding is formed.

[0010] In some embodiments, the gas outlet includes a first opening and a second opening. The first opening is provided on the peripheral wall of the first channel and penetrates the peripheral wall of the first channel along the wall thickness direction of the first channel. The external protective gas in the first channel is discharged through the first opening. The second opening is provided on the peripheral wall of the second channel and penetrates the peripheral wall of the second channel along the wall thickness direction of the second channel. The external protective gas in the second channel is discharged through the second opening.

[0011] In some embodiments, the direction in which the external protective gas in the first channel is discharged from the first opening is opposite to the direction in which the external protective gas in the second channel is discharged from the second opening. The external protective gas in the first channel and the external protective gas in the second channel of the adjacent protective gas distributor form the alternating flow in the accommodation space.

[0012] In some embodiments, there are multiple first openings, and the multiple first openings are arranged at intervals in the up-down direction on the first channel. There are multiple second openings, and the multiple second openings are arranged at intervals in the up-down direction on the second channel. The multiple second openings correspond to the multiple first openings one by one.

[0013] In some embodiments, the protective gas distributor has a first side surface and a second side surface. The first side surface and the second side surface are oppositely arranged and both extend in the up-down direction. The first side surface is a convex arc surface facing the second side surface, and the second side surface is a convex arc surface facing the first side surface. The first opening penetrates the first side surface, and the second opening penetrates the second side surface. The gas alternating flow is formed between the first side surface and the second side surface of adjacent protective gas distributors.

[0014] In some embodiments, the multiple horizontal parts in each group of horizontal parts are staggered with the multiple first openings or the multiple second openings, and the gas circulation is located between adjacent horizontal parts.

[0015] In some embodiments, the whole-process anti-bonding flue further includes a connecting support member. The connecting support member is provided between adjacent protective gas distributors. The connecting support member is provided on the bottom surface of the horizontal part. One end of the connecting support member is connected to the first side surface, and the other end of the connecting support member extends in a first direction to the second side surface of the adjacent protective gas distributor and is connected to the second side surface. There are multiple connecting support members, and the multiple connecting support members are arranged at intervals in the up-down direction. The first direction is orthogonal to the up-down direction.

[0016] In some embodiments, a cooling element and a heater are further included. The cooling element is disposed in the horizontal portion, and the heater is disposed at the gas inlet. The heater is configured to heat the external protective gas introduced into the first channel from the gas inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a top view of the full-process anti-bonding flue of an embodiment of the present invention.

[0018] Figure 2 is a top view of the full-process anti-bonding flue of another embodiment of the present invention.

[0019] Figure 3 is Figure 1 a schematic cross-sectional view taken along line B-B in

[0020] Figure 4 is Figure 1 a schematic view in the direction of A in

[0021] Reference numerals: 1, body; 11, vertical portion; 111, chamber; 12, horizontal portion; 2, protective gas distributor; 21, gas inlet; 22, gas outlet; 221, first opening; 222, second opening; 23, first channel; 24, second channel; 25, first side; 26, second side; 3, accommodation space; 4, connecting support member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0023] As Figures 1-4 shown, the full-process anti-bonding flue of the embodiment of the present invention includes a body 1 and a protective gas distributor 2. The body 1 includes a vertical portion 11 and a horizontal portion 12. The vertical portion 11 has a chamber 111. The bottom of the chamber 111 is communicated with a reaction device (not shown). The flue gas in the reaction device is discharged into the chamber 111. The horizontal portion 12 is disposed in the chamber 111. At least a part of the horizontal portion 12 is connected to the inner wall surface of the vertical portion 11. There are a plurality of horizontal portions 12. The plurality of horizontal portions 12 are at least divided into a group. At least one group of horizontal portions 12 are arranged at intervals around the inner wall surface of the vertical portion 11. Each group of horizontal portions 12 includes a plurality of horizontal portions 12 arranged at intervals in the up-down direction.

[0024] Specifically, a steel plate (not shown) is provided on the outer wall surface of the vertical portion 11 to protect the whole of the anti-adhesion flue throughout the process of the embodiment of the present invention. The vertical portion 11 is made of refractory bricks or cast with refractory materials, and the horizontal portion 12 is also made of refractory bricks or cast with refractory materials. Thus, the vertical portion 11 and the horizontal portion 12 can be integrally built or cast, improving the integrity of the anti-adhesion flue throughout the process of the embodiment of the present invention.

[0025] The protective gas distributor 2 is arranged in the chamber 111. The protective gas distributor 2 extends in the up and down direction. At least part of the protective gas distributor 2 is connected to the inner wall surface of the vertical portion 11. There are at least two protective gas distributors 2. At least two protective gas distributors 2 are arranged alternately and connected with at least one group of horizontal portions 12. The protective gas distributor 2 has a gas inlet 21 and a gas outlet 22 that communicate with each other. The gas inlet 21 is adapted to introduce external protective gas. The adjacent two protective gas distributors 2, the inner wall surface of the vertical portion 11, and the adjacent two horizontal portions 12 in each group enclose a receiving space 3. The receiving space 3 communicates with the chamber 111. The gas outlet 22 communicates with the receiving space 3 so that the external protective gas discharged from the gas outlet 22 flows into the receiving space 3. The external protective gas discharged from the gas outlet 22 forms a gas circulation in the receiving space 3.

[0026] Specifically, bolt holes (not shown) are provided on the side surface of the protective gas distributor 2 adjacent to the vertical portion 11, and bolt holes (not shown) are also provided on the vertical portion 11. The bolt holes on the protective gas distributor 2 and the bolt holes on the vertical portion 11 correspond one by one. Bolts (not shown) are fastened in the bolt holes, so that the protective gas distributor 2 is firmly installed on the vertical portion 11. A steel plate (not shown) can be provided on the outside of the vertical portion 11. The steel plate protects and supports the body 1. The steel plate can also be provided with bolt holes corresponding to the protective gas distributor 2 and the vertical portion 11, so as to fix the steel plate, the vertical portion 11, and the protective gas distributor 2 together by bolts.

[0027] In the whole-process anti-bonding flue of the embodiment of the present invention, the protective gas distributor 2 is arranged in the chamber 111. The protective gas distributor 2 is provided with a gas inlet 21 and a gas outlet 22 that communicate with each other. The gas inlet 21 is adapted to introduce external protective gas, and the gas outlet 22 is adapted to discharge the external protective gas in the protective gas distributor 2 and form a gas circulation in the accommodation space 3, so that the flue gas in the chamber 111 is not likely to approach the inner wall surface of the vertical part, the horizontal part 12 and the protective gas distributor 2 before bonding. The whole-process anti-bonding flue of the embodiment of the present invention reduces the continuity of the contact surface with the flue gas. Due to the existence of multiple horizontal parts 12, it is not easy for the flue gas to form continuous lumps on the surfaces of the inner wall surface of the vertical part, the horizontal part 12 and the protective gas distributor 2 in the up and down directions during the bonding process. Even if the flue gas forms partial bonding on the inner wall surface of the vertical part 11 and the wall surface of the horizontal part 12, the gas circulation can scour and break the bonded slag blocks. Therefore, the whole-process anti-bonding flue of the embodiment of the present invention can inhibit the approach of the flue gas bonding source to the surface of the whole-process anti-bonding flue of the embodiment of the present invention before bonding, reduce the continuity of the contact surface with the flue gas during bonding so that the flue gas does not have conditions for large-area lumping, and actively break the lumps by gas circulation blowing after the bonding is formed.

[0028] Specifically, the protective gas distributor 2 can be made of metal or refractory materials.

[0029] In some embodiments, the pressure of the external protective gas introduced into the gas inlet 21 is higher than the pressure of the flue gas discharged from the reaction equipment into the chamber 111.

[0030] Specifically, the pressure of the external protective gas is higher than the average pressure of the flue gas. Due to the diversion and restriction of the adjacent sides of the adjacent two protective gas distributors 2 and the adjacent two layers of horizontal parts 12 located between the two adjacent protective gas distributors 2, a part of the external protective gas discharged from the gas outlets 22 of the above two adjacent protective gas distributors 2 can fill the accommodation space 3, and another part of the external protective gas can diffuse from the accommodation space 3 to the vicinity of the accommodation space 3 close to the chamber 111, so that the introduced external protective gas forms a positive pressure in the accommodation space 3 and the vicinity of the accommodation space 3 close to the chamber 111. The existence of the pressure difference can effectively prevent the flue gas in the chamber 111 from flowing into the accommodation space 3 or approaching the positive pressure area near the chamber 111, thereby not only forming an anti-sticking protection effect on the surfaces of the inner wall surface of the vertical part, the horizontal part 12 and the protective gas distributor 2 of the whole-process anti-bonding flue of the embodiment of the present invention, but also facilitating the discharge of the flue gas from the chamber 111.

[0031] Specifically, the external protective gas can be compressed air, nitrogen or a gas that does not have a great impact on the properties of the flue gas.

[0032] In some embodiments, a first channel 23 and a second channel 24 are provided on the protective gas distributor 2. Both the first channel 23 and the second channel 24 extend in the vertical direction. The first channel 23 and the second channel 24 are arranged at intervals in the direction from the side of the protective gas distributor 2 adjacent to the inner wall surface of the vertical portion 11 to the side of the protective gas distributor 2 away from the inner wall surface of the vertical portion 11. The lower ends of the first channel 23 and the second channel 24 are connected, the upper end of the second channel 24 is closed, and the upper end of the first channel 23 is connected to the gas inlet 21.

[0033] Specifically, as Figure 1 shown, from the inner wall surface of the vertical portion 11 to the center of the chamber 111 is inward, and from the inner wall surface of the vertical portion 11 to the outer wall surface of the vertical portion 11 is outward. A first channel 23 and a second channel 24 are provided on the protective gas distributor 2. The first channel 23 and the second channel 24 are arranged at intervals on the protective gas distributor 2 in the direction from outside to inside. The gas outlet 22 is connected to the first channel 23 or the second channel 24, so that the external protective gas entering the first channel 23 and the second channel 24 through the gas inlet 21 can be ejected through the gas outlet 22. Thus, the structure of the protective gas distributor 2 is simple, easy to manufacture and has a low cost.

[0034] Further, the upper end of the first channel 23 is connected to the gas inlet 21, and the external protective gas is introduced into the first channel 23 through the gas inlet 21. The upper end of the second channel 24 is closed, so that the external protective gas in the first channel 23 and the second channel 24 is discharged through the gas outlet 22, so that the external protective gas discharged from the gas outlets 22 on the adjacent protective gas distributors 2 can form a gas circulation between the adjacent protective gas distributors 2, so as to inhibit the contact between the flue gas in the chamber 111 and the inner wall surface of the vertical portion 11 and the wall surface of the horizontal portion 12, reduce the contact between the flue gas and the inner wall surface of the vertical portion 11 and the wall surface of the horizontal portion 12, and facilitate the discharge of the flue gas.

[0035] In some embodiments, the gas outlet 22 includes a first opening 221 and a second opening 222. The first opening 221 is provided on the peripheral wall of the first channel 23 and penetrates the peripheral wall of the first channel 23 in the thickness direction of the first channel 23. The external protective gas in the first channel 23 is discharged through the first opening 221. The second opening 222 is provided on the peripheral wall of the second channel 24 and penetrates the peripheral wall of the second channel 24 in the thickness direction of the second channel 24. The external protective gas in the second channel 24 is discharged through the second opening 222.

[0036] Specifically, as Figure 1 and Figure 2As shown, the external protective gas enters the first channel 23 and the second channel 24 from the gas inlet 21 on the first channel 23, and then is discharged through the first opening 221 on the first channel 23 and the second opening 222 on the second channel 24, so that the external protective gas fills the space between the adjacent protective gas distributors 2, making it difficult for the flue gas in the chamber 111 to contact the inner wall surface of the vertical part 11 and the wall surface of the horizontal part 12.

[0037] In some embodiments, the direction in which the external protective gas in the first channel 23 is discharged from the first opening 221 is opposite to the direction in which the external protective gas in the second channel 24 is discharged from the second opening 222. The external protective gas in the first channel 23 and the external protective gas in the second channel 24 of the adjacent protective gas distributor 2 form a gas circulation in the accommodation space 3.

[0038] Specifically, as Figure 1 shown, the direction in which the external protective gas is discharged from the first channel 23 through the first opening 221 is opposite to the direction in which the external protective gas is discharged from the second channel 24 through the second opening 222, so that the external protective gas discharged from the first opening 221 and the external protective gas discharged from the second opening 222 on the protective gas distributor 2 adjacent to the first opening 221 form a gas circulation between the adjacent two protective gas distributors 2, making it difficult for the flue gas in the chamber 111 to enter the space between the adjacent protective gas distributors 2. In addition, the gas circulation can also scour and break the slag blocks on the inner wall surface of the vertical part 11 and the wall surface of the horizontal part 12. Thus, it is possible to more effectively inhibit the adhesion of the flue gas to the inner wall surface of the vertical part 11 and the wall surface of the horizontal part 12, and also improve the efficiency of the whole-process anti-adhesion flue of the embodiment of the present invention to actively break the slag blocks that have adhered to the inner wall surface of the vertical part 11 and the wall surface of the horizontal part 12.

[0039] In some embodiments, there are multiple first openings 221, and the multiple first openings 221 are arranged at intervals in the vertical direction on the first channel 23. There are multiple second openings 222, and the multiple second openings 222 are arranged at intervals in the vertical direction on the second channel 24. The multiple second openings 222 correspond to the multiple first openings 221 one by one.

[0040] Specifically, as Figure 3As shown, a plurality of first openings 221 are arranged at intervals in the vertical direction on the first channel 23, and a plurality of second openings 222 are arranged at intervals in the vertical direction on the second channel 24. The plurality of first openings 221 and the plurality of second openings 222 are arranged in one-to-one correspondence, so that a plurality of gas circulations can be formed between adjacent protective gas distributors 2, further effectively preventing the flue gas in the chamber 111 from contacting the inner wall surface of the vertical part 11 and the wall surface of the horizontal part 12, and improving the efficiency of the circulating gas in breaking the slag blocks that have formed on the inner wall surface of the vertical part 11 and the wall surface of the horizontal part 12.

[0041] In some embodiments, the protective gas distributor 2 has a first side surface 25 and a second side surface 26. The first side surface 25 and the second side surface 26 are arranged opposite to each other, and both the first side surface 25 and the second side surface 26 extend in the vertical direction. The first side surface 25 is a convex arc surface facing the second side surface 26, and the second side surface 26 is a convex arc surface facing the first side surface 25. The first opening 221 penetrates through the first side surface 25, and the second opening 222 penetrates through the second side surface 26. The gas circulation is formed between the first side surface 25 and the second side surface 26 of adjacent protective gas distributors 2.

[0042] Specifically, as Figure 1 shown, the first side surface 25 is arranged as a convex arc surface facing the second side surface 26, and the second side surface 26 is arranged as a convex arc surface facing the first side surface 25. The first side surface 25, the second side surface 26 on the adjacent protective gas distributor 2 to it, and the two horizontal parts adjacent in the vertical direction enclose a receiving space 3. The presence of the arc surface causes the external protective gas to flow in a turning manner after contacting the arc surface. Since the first openings 221 of two adjacent gas distributors 2 are arranged staggeredly, the external protective gas discharged from the first openings 221 of two adjacent gas distributors 2 is easy to form an annular circulation loop, and further a gas circulation can be formed. The gas circulation makes the external protective gas stay in the receiving space 3 for a longer time and flow more stably, enables a relatively high gas pressure to be maintained in the receiving space 3, and prevents all the external protective gas from directly overflowing into the flue gas after flowing out of the receiving space 3, thereby reducing the unit flow rate of the external protective gas, further reducing the influence of the external protective gas on the flue gas flow rate, and also reducing the outflow of the circulating gas and preventing the flue gas from flowing into the receiving space 3.

[0043] In addition, if the wall surface of the horizontal part 12 facing the center of the flue forms an overall adhesion, resulting in the obstruction of the external protective gas flowing into the chamber 111, the gas circulation has an additional direction of disturbance to the bonded blocks compared with the unidirectionally flowing flue gas, thus having a better breaking effect.

[0044] In addition, the direction of the circulation surface of the circulating gas is perpendicular to the flow direction of the flue gas, so that neither the circulating gas in the receiving space 3 nor the circulating gas overflowing from the receiving space 3 will affect the flow rate of the flue gas in the vertical direction.

[0045] In some embodiments, as Figure 2 shown, if the cross-section of the full-process anti-adhesion flue of the embodiment of the present invention is circular, the shapes of the plurality of protective gas distributors 2 can be set to be the same. If the cross-section of the full-process anti-adhesion flue of the embodiment of the present invention is rectangular, the structures and shapes of the protective gas distributors 2 located at the four corners of the rectangle are different. Specifically, as Figure 1 shown, the first side surface 25 and the second side surface 26 of the protective gas distributor 2 located at the four corners of the rectangle are adjacent. The first side surface 25 is set as an arc surface protruding towards the inner wall surface of the chamber 111, and the second side surface 26 is set as an arc surface protruding towards the inner wall surface of the chamber 111. Moreover, the protruding direction of the arc surface of the first side surface 25 is orthogonal to the protruding direction of the arc surface of the second side surface 26. The first opening 221 is located on the side of the first side surface 25 close to the inner wall surface of the chamber 111, and the second opening 222 is located on the side of the second side surface 26 far from the inner wall surface of the chamber 111.

[0046] In some embodiments, the plurality of horizontal portions 12 in each group of horizontal portions 12 are staggered with the plurality of first openings 221 or the plurality of second openings 222, and the gas circulation is located between adjacent horizontal portions 12.

[0047] Specifically, the plurality of horizontal portions 12 in each group of horizontal portions 12 are arranged at intervals in the up-down direction on the inner wall surface of the vertical portion 11. At least part of the horizontal portion 12 is connected to the inner wall surface of the vertical portion 11. The side of the horizontal portion 12 far from the vertical portion 11 protrudes towards the middle of the chamber 111 in the direction from outside to inside, so that the plurality of horizontal portions 12 in each group of horizontal portions 12 are serrated in the up-down direction.

[0048] In some embodiments, the side surface of the horizontal portion 12 far from the vertical portion 11 is flush with the side surface of the protective gas distributor 2 far from the vertical portion 11, and / or the side surface of the horizontal portion 12 far from the vertical portion 11 protrudes inwards from the side surface of the protective gas distributor 2 far from the vertical portion 11.

[0049] Furthermore, an anchoring element (not shown) is provided on the surface of the protective gas distributor 2 close to the center of the chamber 111, and a castable is laid to protect and insulate this surface. Specifically, the castable is a granular and powdery material made by adding a certain amount of binder to refractory materials, and has high fluidity, and is an amorphous refractory material formed by casting.

[0050] Specifically, a plurality of horizontal portions 12 in the vertical direction are staggered with a plurality of first openings 221 or a plurality of second openings 222, so that the external protective gas discharged from the first openings 221 and the second openings 222 can form a gas circulation in the accommodation space 3, and the gas circulation is stable in the accommodation space 3, not easy to overflow from the accommodation space 3, and can effectively prevent the flue gas from flowing in. In addition, the plurality of horizontal portions 12 are serrated, so that the plurality of horizontal portions 12 do not form a large continuous plane, making it not easy for the flue gas to adhere to the horizontal portions 12. Even if the flue gas adheres to the wall surface of the accommodation space 3 and forms slag blocks or adheres to the surface of the horizontal portion facing the center of the chamber as a whole to block the accommodation space 3, the slag blocks are not easy to stay for a long time due to the real-time disturbance of the circulating gas. Thus, the full-process anti-adhesion flue of the embodiment of the present invention further suppresses the adhesion of the flue gas to the inner wall surface of the vertical portion 11 and the wall surface of the horizontal portion 12, and also improves the efficiency of actively breaking the slag blocks that have adhered to the inner wall surface of the vertical portion 11 and the wall surface of the horizontal portion 12.

[0051] In some embodiments, the full-process anti-adhesion flue further includes a connecting support member 4. The connecting support member 4 is arranged between adjacent protective gas distributors 2. Both ends of the connecting support member 4 can be welded to the outer shell of the adjacent protective gas distributors 2. The connecting support member 4 is arranged on the bottom surface of the horizontal portion. One end of the connecting support member 4 is connected to the first side surface 25, and the other end of the connecting support member 4 extends in the first direction to the second side surface 26 of the adjacent protective gas distributor 2 and is connected to the second side surface 26. A plurality of connecting support members 4 are provided, and the plurality of connecting support members 4 are arranged at intervals in the vertical direction. The first direction is orthogonal to the vertical direction.

[0052] Specifically, as Figure 3 shown, a plurality of connecting support members 4 are provided, and the plurality of connecting support members 4 are arranged at intervals in the vertical direction. One end of the connecting support member 4 is connected to the first side surface 25, and the other end of the connecting support member 4 is connected to the second side surface 26 to connect and limit the adjacent protective gas distributors 2, thereby stabilizing the position of the protective gas distributors 2 so that the protective gas distributors 2 are firm in the chamber 111. The connecting support member 4 is arranged on the bottom surface of the horizontal portion 12 to support the horizontal portion 12 in the vertical direction and bear the weight.

[0053] In some embodiments, the connecting support member 4 can be a steel plate, with a simple structure and low cost.

[0054] In some embodiments, the full-process anti-adhesion flue further includes a cooling element (not shown), and the cooling element is arranged in the body 1.

[0055] Specifically, arranging the cooling element inside can effectively prevent the body 1 from being damaged by the heat of the flue gas, thereby extending the service life of the body 1.

[0056] In some embodiments, the full-process anti-sticking flue further includes a heater (not shown), which is disposed at the gas inlet 21 and is used to heat the external protective gas passing through the gas inlet 21 into the first channel 23 .

[0057] Specifically, a gas heater (not shown) is provided at the gas inlet 21 to heat the external protective gas entering the first channel 23 through the gas inlet 21 to prevent the external protective gas from lowering the temperature of the main body 1 after being discharged through the gas outlet 22, causing the temperature of the main body 1 to be lower than the flue gas temperature, making it easy for the flue gas to adhere to the inner wall surface of the vertical portion 11 and the wall surface of the horizontal portion 12.

[0058] Furthermore, the gas heater can heat the protective gas temperature to a temperature higher than the flue gas temperature. After the protective gas flows out, it can heat and soften the bonded slag blocks, thereby reducing the viscosity of the slag blocks and thus reducing adhesion.

[0059] In some embodiments, the full-process anti-adhesion flue also includes a pressure measuring device (not shown) installed at the gas inlet. The pressure measuring device monitors the pressure of the external protective gas at the inlet. Extensive internal adhesion increases the pressure drop of the protective gas, leading to a relatively high back pressure. This changes the pressure measuring device reading, allowing both the presence of adhesion in various flue regions to be determined and the degree of adhesion in each region to be compared. If the pressure measuring device reading is abnormal, the pressure and flow rate of the protective gas can be appropriately increased to further disturb the adhesion within the flue and enhance the removal effect.

[0060] In some embodiments, the full-process anti-adhesion flue further includes a connecting element (not shown), which is provided between the main body 1 and the reaction device for connecting the main body 1 and the reaction device to ensure a stable connection between the reaction device and the main body 1 .

[0061] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0062] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0063] In the present invention, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0065] In the present invention, terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0066] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made by those of ordinary skill in the art to the above embodiments are within the protection scope of the present invention.

Claims

1. A full-process anti-adhesion flue, characterized in that, Comprising: A body (1), the body (1) comprising a vertical part (11) and a horizontal part (12), the vertical part (11) having a chamber (111), the chamber (111) communicating with a reaction device, flue gas in the reaction device being discharged into the chamber (111), the horizontal part (12) being disposed in the chamber (111), at least part of the horizontal part (12) being connected to the inner wall surface of the vertical part (11), there being a plurality of the horizontal parts (12), the plurality of the horizontal parts (12) being at least divided into one group, at least one group of the horizontal parts (12) being arranged at intervals around the inner wall surface of the vertical part (11), each group of the horizontal parts (12) including a plurality of the horizontal parts (12) arranged at intervals in the up-down direction; A protective gas distributor (2), the protective gas distributor (2) being disposed in the chamber (111), the protective gas distributor (2) extending in the up-down direction, at least part of the protective gas distributor (2) being connected to the inner wall surface of the vertical part (11), there being at least two of the protective gas distributors (2), at least two of the protective gas distributors (2) being alternately arranged and connected with at least one group of the horizontal parts (12), the protective gas distributor (2) having a gas inlet (21) and a gas outlet (22) communicating with each other, an external protective gas being adapted to be introduced into the gas inlet (21), an accommodation space (3) being formed by adjacent two of the protective gas distributors (2), the inner wall surface of the vertical part (11), and adjacent two of the horizontal parts (12) in each group, the accommodation space (3) communicating with the chamber (111), the gas outlet (22) communicating with the accommodation space (3) so that the external protective gas discharged from the gas outlet (22) flows into the accommodation space (3), and the external protective gas discharged from the gas outlets (22) of adjacent two of the protective gas distributors (2) forms an alternating flow in the accommodation space (3); The pressure of the external protective gas introduced into the gas inlet (21) is higher than the pressure of the flue gas discharged from the reaction device into the chamber (111); The protective gas distributor (2) is provided with a first channel (23) and a second channel (24), both the first channel (23) and the second channel (24) extending in the up-down direction, the first channel (23) and the second channel (24) being arranged at intervals in a direction from a side of the protective gas distributor (2) adjacent to the inner wall surface of the vertical part (11) to a side of the protective gas distributor (2) away from the inner wall surface of the vertical part (11), the lower end of the first channel (23) communicating with the lower end of the second channel (24), the upper end of the second channel (24) being closed, and the upper end of the first channel (23) communicating with the gas inlet (21).

2. The whole-process anti-adhesion flue according to claim 1, wherein The gas outlet (22) includes a first opening (221) and a second opening (222). The first opening (221) is provided on the peripheral wall of the first channel (23) and penetrates the peripheral wall of the first channel (23) along the wall thickness direction of the first channel (23). The external protective gas in the first channel (23) is discharged through the first opening (221). The second opening (222) is provided on the peripheral wall of the second channel (24) and penetrates the peripheral wall of the second channel (24) along the wall thickness direction of the second channel (24). The external protective gas in the second channel (24) is discharged through the second opening (222).

3. The whole-process anti-bonding flue according to claim 2, characterized in that, The discharging direction of the external protective gas in the first channel (23) from the first opening (221) is opposite to the discharging direction of the external protective gas in the second channel (24) from the second opening (222). The external protective gas in the first channel (23) and the external protective gas in the second channel (24) of the adjacent protective gas distributor (2) form the alternating flow in the accommodation space (3).

4. The whole-process anti-bonding flue according to claim 2, wherein The first opening (221) is plural. The plural first openings (221) are arranged at intervals in the up-down direction on the first channel (23). The second opening (222) is plural. The plural second openings (222) are arranged at intervals in the up-down direction on the second channel (24). The plural second openings (222) correspond to the plural first openings (221) one by one.

5. The whole-process anti-adhesion flue according to claim 2, characterized in that, The protective gas distributor (2) has a first side surface (25) and a second side surface (26). The first side surface (25) and the second side surface (26) are arranged oppositely. Both the first side surface (25) and the second side surface (26) extend in the up-down direction. The first side surface (25) includes a convex arc surface facing the second side surface (26). The second side surface (26) includes a convex arc surface facing the first side surface (25). The first opening (221) penetrates the first side surface (25). The second opening (222) penetrates the second side surface (26). The alternating flow is formed between the first side surface (25) and the second side surface (26) of the adjacent protective gas distributors (2).

6. The whole-process anti-adhesion flue according to claim 2, characterized in that, The plural horizontal parts (12) in each group of the horizontal parts (12) are arranged staggeredly with the plural first openings (221) or the plural second openings (222). The gas circulation is located between the adjacent horizontal parts (12).

7. The whole-process anti-adhesion flue according to claim 5, wherein Further included is a connecting support member (4), the connecting support member (4) is arranged between adjacent protection gas distributors (2), the connecting support member (4) is arranged on the bottom surface of the horizontal portion (12), one end of the connecting support member (4) is connected to the first side surface (25), the other end of the connecting support member (4) extends in a first direction to the second side surface (26) of the adjacent protection gas distributor (2) and is connected to the second side surface (26), there are a plurality of connecting support members (4), the plurality of connecting support members (4) are arranged at intervals in the up-and-down direction, and the first direction is orthogonal to the up-and-down direction.

8. The whole-process anti-bonding flue according to claim 1, characterized in that, Further included are a cooling element and a heater, the cooling element is arranged in the horizontal portion (12), the heater is arranged at the gas inlet (21), and the heater is used for heating the external protection gas introduced into the first channel (23) from the gas inlet (21).

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