Shallow inclined plate sedimentation device

Abstract

The invention relates to a shallow inclined plate sedimentation device which comprises a plurality of sets of sedimentation layers arranged at intervals from top to bottom, each set of sedimentation layer comprises a plurality of sedimentation units, each sedimentation unit comprises an inclined plate and a supporting connecting piece, the plate surface of the inclined plate is arranged in a downward inclined mode from the first end to the second end of the inclined plate, and a notch is formed in the first end of the inclined plate; the supporting rods are vertically arranged, the supporting rods can be inserted into the notches of the corresponding inclined plates in each set of settling layers, and the front ends and the rear ends of the supporting connecting pieces can be connected with the corresponding inclined plates and the supporting rods respectively. The problems that in an existing inclined plate supporting mode, the inclined plates need to be replaced in groups, the supporting occupied space is large, and cracks are likely to be generated due to the fact that part of the positions of the inclined plates are naturally expanded or contracted under the alternate cooling and heating environment can be effectively solved.

Description

Technical Field

[0001] The invention relates to the field of smelting, and in particular to a shallow inclined plate settling device. Background Art

[0002] During the normal smelting production stage of the converter, the flue gas temperature is high, the flue gas volume is large, and the dust content is high. In order to prevent the large particles of high-temperature fire from igniting the flue gas and causing an explosion, it is necessary to complete the separation of high-temperature large particles, especially large particles of micrometer size (particles with an average particle size of not less than 50μm) before the waste heat recovery to ensure that there is no explosion during the full waste heat recovery stage. During the converter preparation stage, the flue gas temperature is lowered, the flue gas volume is small, the dust content is also reduced, the pipeline flue gas flow rate is low, and the CO content is between the upper and lower explosion limits. If there are large particles of fire with sufficient energy at the same time, it is likely to cause an explosion, so the capture of large particles at this stage is equally important.

[0003] A shallow inclined plate settling device is designed according to the shallow settling theory and the inclined plate settling principle. This device is arranged between the smoke inlet and the smoke outlet of the smoke channel, and is used to circulate the smoke and settle and capture particles in the smoke after deceleration. After the dust-laden smoke enters the shallow inclined plate settling device at a lower flow rate, the particles settle on the inclined plate to achieve smoke and dust particle separation. The shallow settling technology is adopted to ensure the settling effect while facilitating the installation, maintenance, and cleaning of each shallow settling unit to prevent accidental blockage; it is convenient to reasonably adjust the number of inclined plate layers and the distance between two adjacent inclined plates according to actual production needs.

[0004] The prior art patent with publication number CN115779563A provides a method for supporting a settlement assembly of a shallow inclined plate settlement device, wherein the shallow settlement unit comprises an inclined plate support, an upper inclined plate, and a bottom inclined plate, wherein the inclined plate support is connected to the inclined plate group and the support rod structure. The support rod structure is divided into a front support rod structure and a rear support rod structure, and the structure comprises a rod body and a connection unit. Connection units are arranged at intervals on the rod body, and each connection unit is fixedly connected to the inclined plate support to support the shallow settlement unit.

[0005] However, this solution adopts a support method of multi-point supported inclined plates. Due to the large particles of flue gas and soot scouring the inclined plates during the production process, the inclined plates are extremely prone to wear, and the inclined plate settlement unit needs to be replaced. The multi-point support method makes it difficult to replace a single inclined plate, and it is necessary to replace them in groups, which greatly increases the workload and maintenance time. The multi-point support method fixes the inclined plates on the front and rear groups of support rod columns through inclined plate support members, and the space occupied by the support is large. When the vertical distance between the inclined plates is large, the settlement layer group is too high in height, making it inconvenient to carry out work such as installation, maintenance, and ash cleaning, and it is extremely prone to accidental blockage, affecting normal production. When the multi-point support method is applied to working environments with repeated cold and heat alternation such as converter flue gas, the thermal expansion and contraction conditions of different positions of the inclined plates are different. When the inclined plates at the positions restricted by the support rods cannot expand or contract freely, cracks are particularly likely to occur, affecting the service life of the inclined plates. Summary of the Invention

[0006] The purpose of the present invention is to provide a shallow inclined plate settlement device, which can effectively improve the problems in the existing inclined plate support method, such as the inclined plates need to be replaced in groups, the support occupies a large space, and the natural expansion or contraction of some positions of the inclined plates is restricted in the cold and heat alternating environment, which is prone to cracks.

[0007] The purpose of the present invention is achieved as follows. A shallow inclined plate settlement device is used to be arranged between the flue gas inlet and the flue gas outlet of the flue gas passage. The shallow inclined plate settlement device includes:

[0008] Multiple groups of settlement layers arranged at intervals from top to bottom. Each group of settlement layers includes multiple settlement units. Each settlement unit includes an inclined plate and a support connecting member. The plate surface of the inclined plate is arranged to incline downward from its first end to its second end, and a notch is opened at the first end of the inclined plate;

[0009] Multiple vertically arranged support rods, the support rods can be inserted into the notches of the corresponding inclined plates in each group of settlement layers, and the front end and the rear end of the support connecting member can be respectively connected to the corresponding inclined plate and the support rod.

[0010] In a preferred embodiment of the present invention, the support connecting member includes a support structure near its front end. An installation hole is opened at a position on the inclined plate near the notch. A slot is opened on the support structure. The inclined plate can be inserted into the slot and fastened to the support structure through a fastener passing through the installation hole.

[0011] In a preferred embodiment of the present invention, the support connecting member includes a support structure near its front end. A fixing hole is opened at a position on the inclined plate near the notch. The support structure includes a support block with a support inclined surface, a fixing column arranged on the support inclined surface, and a fixing member with a retaining cap. The inclined plate can be abutted against the support inclined surface. The fixing column can pass through the fixing hole. The fixing member can be fastened to the fixing column, and the retaining cap can be blocked on the plate surface of the inclined plate facing away from the support inclined surface.

[0012] In a preferred embodiment of the present invention, the support connecting member further includes a connecting structure near the rear end. The connecting structure includes two arc-shaped side plates arranged symmetrically. The two arc-shaped side plates can be symmetrically arranged on both sides of the axis of the corresponding support rod and are welded to the support rod by spot welding.

[0013] In a preferred embodiment of the present invention, the support connecting member further includes a connecting structure near the rear end. A card slot with a socket is formed in the connecting structure. The support rod can extend into the socket and be clamped and fixed in the card slot.

[0014] In a preferred embodiment of the present invention, the support connecting member further includes a connecting structure near its rear end. The connecting structure includes two arc-shaped clamping plates arranged symmetrically. The middle parts of the two arc-shaped clamping plates can be clamped on both sides of the support rod, and the rear ends of the two arc-shaped clamping plates can be abutted against each other and connected and fastened by fasteners.

[0015] In a preferred embodiment of the present invention, the angle between the inclined plate and the horizontal plane is 30 - 89°.

[0016] In a preferred embodiment of the present invention, the support rod is a water-cooled pipe.

[0017] In a preferred embodiment of the present invention, the flue gas passage is a vertically axial cylindrical flue. A plurality of sedimentation units in each sedimentation layer are arranged at intervals along the circumferential direction of the cylindrical flue, and a plurality of support rods are arranged at intervals along the circumferential direction of the cylindrical flue.

[0018] In a preferred embodiment of the present invention, the inclined plate is an isosceles trapezoidal plate body.

[0019] As described above, the shallow inclined plate sedimentation device of the present invention can achieve the sedimentation of particles in the flue gas, and each sedimentation unit is fixedly connected to the support rod through a single support connecting member by a single-point support method. The single-point support method is convenient for replacing a single worn sedimentation unit, reduces the construction difficulty and maintenance time, and also ensures that the inclined plate can expand and contract freely in more dimensions when working in an environment of alternating heat and cold, thereby improving the service life of the inclined plate. This support method occupies a small space, saves the number of support rods, increases the number of sedimentation layers in the shallow inclined plate sedimentation device, and in combination with the single-point support method, it is also convenient to make the flue gas flow more uniform by adjusting the distance between adjacent two layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings are only intended to illustrate and explain the present invention schematically and do not limit the scope of the present invention.

[0021] Wherein:

[0022] Figure 1 is a schematic structural diagram of the shallow inclined plate sedimentation device provided by the present invention.

[0023] Figure 2 is Figure 1 The sectional view along A-A in

[0024] Figure 3 It is the structural schematic diagram of the inclined plate provided by the present invention.

[0025] Figure 4 is Figure 3 The exploded view of the cooperation between the inclined plate and the support connecting member in Figure 4 The support connecting member in adopts the support structure of the first method and the connection structure of the first method.

[0026] Figure 5 is Figure 4 The schematic diagram after the inclined plate and the support connecting member in are connected.

[0027] Figure 6 It is another structural schematic diagram of the inclined plate provided by the present invention.

[0028] Figure 7 It is another structural schematic diagram of the support connecting member provided by the present invention, Figure 7 The support connecting member in adopts the support structure of the second method and the connection structure of the first method.

[0029] Figure 8 is Figure 7 The side view after the support connecting member in is connected with Figure 6 the inclined plate and the support rod in

[0030] Figure 9 is Figure 8 The sectional view of

[0031] Figure 10 It is the schematic diagram after the support connecting member with another structure provided by the present invention is connected with Figure 6 the inclined plate and the support rod in Figure 10 The support connecting member in adopts the support structure of the second method and the connection structure of the third method.

[0032] Figure 11 is Figure 10 The sectional view of

[0033] Explanation of the reference numerals in the drawings:

[0034] 100, sedimentation unit;

[0035] 1, inclined plate; 11, notch; 12, mounting hole; 13, fixing hole;

[0036] 2. Support connecting member; 21. Support structure; 211. Slot; 212. Support block; 213. Fixed column; 214. Retaining cap; 22. Connection structure; 221. Arc-shaped side plate; 222. Arc-shaped clamping plate;

[0037] 3. Support rod. Detailed implementation manners

[0038] For a clearer understanding of the technical features, objectives, and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0039] As Figures 1 to 11 shown, this embodiment provides a shallow inclined plate sedimentation device for being arranged between the flue gas inlet and the flue gas outlet of a flue gas passage. The shallow inclined plate sedimentation device includes:

[0040] Multiple groups of sedimentation layers arranged at intervals from top to bottom. Each group of sedimentation layers includes a plurality of sedimentation units 100. Each sedimentation unit 100 includes an inclined plate 1 and a support connecting member 2. The plate surface of the inclined plate 1 is arranged to incline downward from its first end to its second end, and a notch 11 is provided at the first end of the inclined plate 1;

[0041] A plurality of vertically arranged support rods 3. The support rods 3 can be inserted into the notches 11 of the corresponding inclined plates 1 in each group of sedimentation layers, and the front end and the rear end of the support connecting member 2 can be respectively connected to the corresponding inclined plate 1 and the support rod 3.

[0042] It can be understood that each sedimentation unit 100 includes an inclined plate 1 and a support connecting member 2. The number of sedimentation units 100 included in each group of sedimentation layers is the same as the number of support rods 3, and the plurality of sedimentation units 100 in each group of sedimentation layers are arranged directly opposite to the plurality of sedimentation units 100 in other groups of sedimentation layers up and down. The plurality of inclined plates 1 arranged directly opposite to each other up and down in multiple groups of sedimentation layers are arranged at parallel intervals along the axial direction of the support rods 3 and are connected to the support rods 3 through their respective support connecting members 2. A flue gas inlet, a flue gas outlet, and an ash discharge port are provided on the flue gas passage. The area in the flue gas passage for arranging the shallow inclined plate sedimentation device constitutes an inclined plate sedimentation area. The support rod 3 structure penetrates the inclined plate sedimentation area from top to bottom. The area between the two inclined plates 1 of the two sedimentation units 100 that are directly opposite to each other up and down in adjacent two layers of sedimentation layers constitutes a flue gas sedimentation passage. The second end and the first end of the inclined plate 1 are respectively arranged close to the inlet and the outlet of the flue gas sedimentation passage. The direction from the second end to the first end of the inclined plate 1 is arranged along the gas flow direction of the corresponding flue gas sedimentation passage. The entire shallow inclined plate sedimentation device is used for flowing flue gas and capturing particles in the flue gas.

[0043] The connection position of the specific support connecting member 2 and the corresponding inclined plate 1 should be determined according to the center of gravity position of the inclined plate 1, so as to ensure that after the inclined plate 1 is supported by only one support connecting member 2, the inclined plate 1 can maintain a preset inclination angle and a stable position; the front end and the rear end of the support connecting member 2 are respectively close to the second end and the first end of the inclined plate 1. During use, after the dusty flue gas enters the flue gas passage through the flue gas inlet, it enters the shallow inclined plate sedimentation device. The dusty flue gas flows from the inlet of the corresponding flue gas sedimentation passage to the outlet. The particles in the dusty flue gas can settle on the inclined plate 1, and the captured particles flow downward and flow to the ash outlet, thereby realizing the separation of soot particles.

[0044] Thus, the shallow inclined plate sedimentation device in this embodiment can realize the sedimentation of particles in the flue gas, and each sedimentation unit 100 is fixedly connected to the support rod 3 only through one support connecting member 2 in a single-point support manner. The single-point support method is convenient for replacing a single worn sedimentation unit 100, reduces the construction difficulty and maintenance time, and also ensures that the inclined plate 1 can expand and contract freely in more dimensions when working in a hot and cold alternating environment, thereby increasing the service life of the inclined plate 1. This support method occupies a small space, saves the number of support rods 3, increases the number of sedimentation layers in the shallow inclined plate sedimentation device, and in combination with the single-point support method, it is also convenient to make the flue gas flow more uniform by adjusting the distance between adjacent layers.

[0045] In a specific implementation manner, the support connecting member 2 includes a support structure 21 near its front end and a connecting structure 22 near its rear end. The connecting structure 22 and the support structure 21 can be an integrally formed structure or a split structure and welded into a whole.

[0046] In order to facilitate the connection and fixation of the support structure 21 of the support connecting member 2 and the inclined plate 1, for example, the following two methods can be adopted:

[0047] The first method: Refer to Figures 3 to 5 , an installation hole 12 is opened at a position on the inclined plate 1 close to the notch 11, a slot 211 is opened on the support structure 21, and the inclined plate 1 can be inserted into the slot 211 and fastened to the support structure 21 through a fastener passing through the installation hole 12.

[0048] In this method, corresponding connection holes also start to appear on the support structure 21. The support structure 21 includes an upper support plate and a lower support plate arranged at intervals up and down, and a side support plate connected to the rear ends of the upper support plate and the lower support plate. The intervals between the three support plates enclose the above-mentioned slot 211. The upper support plate and the lower support plate are provided with the same number of corresponding connection holes, and the number is the same as that of the mounting holes 12 on the inclined plate 1. The number of connection holes is the same as the number of mounting holes 12 and the fasteners. In this embodiment, it is more preferably that the number of mounting holes 12 is two and they are symmetrically arranged with respect to the center line of the notch 11 (the center line of this notch 11 is arranged along the length direction of the inclined plate 1 from the first end to the second end), so as to make the structure more stable.

[0049] In this embodiment, the outer edge contour of the notch 11 near the second end of the inclined plate 1 is an arc contour, and the side support plate is also designed as an arc plate, which can fit well with this arc contour. Of course, other matching shapes can also be adopted according to needs.

[0050] The second method: Refer to Figures 6 to 11 , a fixing hole 13 is provided on the inclined plate 1 near the notch 11. The support structure 21 includes a support block 212 with a support inclined surface, a fixing column 213 arranged on the support inclined surface, and a fixing member with a retaining cap 214. The inclined plate 1 can lean against the support inclined surface, the fixing column 213 can pass through the fixing hole 13, the fixing member can be fastened to the fixing column 213, and the retaining cap 214 can be blocked on the plate surface of the inclined plate 1 facing away from the support inclined surface.

[0051] In this method, the size of the support inclined surface can be adjusted according to the size of the inclined plate 1 and the fixing situation. The number of fixing holes 13 is one and is determined according to the center of gravity position of the inclined plate 1. The fixing member can be fixed to the fixing column 213 by means of threaded connection or clamping. The diameter of the retaining cap 214 is larger than the aperture of the fixing hole 13. A gasket can also be provided between the retaining cap 214 and the plate surface of the inclined plate 1. After the fixing member is connected to the fixing column 213, the retaining cap 214 abuts against the corresponding plate surface (or the corresponding gasket) of the inclined plate 1 to fix the inclined plate 1 between the retaining cap 214 and the support inclined surface. The inclination angle of the support inclined surface is also the inclination angle of the inclined plate 1.

[0052] In order to facilitate the connection and fixation of the connection structure 22 and the support rod 3, for example, the following three methods can be adopted:

[0053] The first method: Refer to Figures 3 to 9 , the connection structure 22 includes two arc-shaped side plates 221 arranged symmetrically. The two arc-shaped side plates 221 can be symmetrically arranged on both sides of the axis of the corresponding support rod 3 and are welded to the support rod 3 by spot welding.

[0054] The second mode: a slot with a socket is formed in the connection structure 22, and the support rod 3 can extend through the socket and be fixed in the slot.

[0055] The third method: reference Figure 10 and Figure 11 The connection structure 22 includes two symmetrically arranged arc-shaped clamping plates 222, the middle parts of the two arc-shaped clamping plates 222 can be clamped on both sides of the support rod 3, and the rear ends of the two arc-shaped clamping plates 222 can be abutted against each other and connected and fastened by fasteners.

[0056] In this manner, the connecting structure 22 constitutes a pipe clamp structure, and the middle portion of the arc-shaped clamping plate 222 is a semicircular structure so as to be abutted against the outer wall of the support rod 3. The arc-shaped clamping plate 222 is provided with a corresponding through hole at the end away from the supporting structure 21 (i.e., its rear end) to facilitate the connection of fasteners (such as bolts).

[0057] The connection structure 22 is connected and fixed to the support rod 3 by single-point welding, clamping or fastener connection. In the method of single-point welding and fixing to the support rod 3, the arc-shaped side plates 221 on both sides surround the support rod 3, close to the outer wall of the support rod 3 or leaving a 1mm gap, and the inner side of the arc-shaped side plate 221 is welded to the contact point of the support rod 3 to achieve a fixing effect. When the clamping method is adopted, the groove width of the clamping groove is small, which can clamp the support rod 3 to ensure that each sedimentation unit 100 does not slip. In the method of fastener connection, the two arc-shaped clamps 222 constitute a pipe clamp that can embrace the support rod 3, and the rear end of the pipe clamp can be tightened by bolts.

[0058] Compared with the prior art, the above three methods are used to fix the connection structure 22 to the support rod 3, which can conveniently adjust the distance between the inclined plates 1 of two adjacent sedimentation layers, and facilitate the control of the height of the sedimentation layer group. By adopting the single-point welding fixing method, only a single welding point needs to be released to adjust the distance between the inclined plates 1 along the axial direction of the support rod 3. Compared with the prior art mentioned in the background technology, which requires the release of four welding points for adjustment, the construction difficulty and maintenance time are greatly reduced. When the clamping method is adopted, it is only necessary to remove the plug-in connection structure 22 from the support rod 3 to adjust the distance between the inclined plates 1 along the axial direction of the support rod 3; when the pipe clamp structure fixing method connected by fasteners is adopted, the distance between the inclined plates 1 can be adjusted along the axial direction of the support rod 3 by adjusting the tightness of the bolts at the rear end of the pipe clamp, and installation, maintenance, and adjustment are more convenient.

[0059] Of course, the forms of the above-mentioned supporting structure 21 and the connecting structure 22 are not limited to the above-mentioned methods, and other forms can also be adopted as needed, as long as the inclined plate 1 and the supporting rod 3 can be connected and fixed in the vertical direction to ensure that each sedimentation unit 100 will not slip (a small amount of shaking in the horizontal direction is allowed and will not affect the use). This embodiment is only for illustration.

[0060] Furthermore, the angle between the inclined plate 1 and the horizontal plane is 30 - 89°, which is more conducive to the downward flow of the flue gas particles to be captured.

[0061] The specific inclination angle of the inclined plate 1 is determined according to the actual situation. If it is necessary to adjust the angle between the inclined plate 1 and the horizontal plane according to the actual production situation, if the support connecting member 2 is connected to the inclined plate 1 according to the Figure 4 and Figure 5 shown support structure 21 in, the inclination angle when the connecting structure 22 is connected to the support rod 3 can be adjusted by adding gaskets, etc., or by replacing the support connecting member 2 of other specifications with the support structure 21 and the connecting structure 22 at other angles to adjust the inclination angle of the inclined plate 1; if the support connecting member 2 is connected to the inclined plate 1 according to the Figures 6 to 11 shown support structure 21 in, the inclination angle of the inclined plate 1 can be finely adjusted by adding gaskets between the support inclined plane and the inclined plate 1, or by replacing the support connecting member 2 of other specifications with a support inclined plane of other inclination angles to adjust the inclination angle of the inclined plate 1.

[0062] The above-mentioned support rod 3 can be a water-cooled pipe, for example.

[0063] In some embodiments, the flue gas passage is an axially vertical cylindrical flue, and multiple sedimentation units 100 in each sedimentation layer are arranged at intervals along the circumferential direction of the cylindrical flue, and multiple support rods 3 are arranged at intervals along the circumferential direction of the cylindrical flue.

[0064] The cylindrical flue can be a cylindrical flue, a rectangular flue, a square flue, or other non-circular cylindrical flues in the form of a combination of a rectangle and a circle, etc., that is, the cross-section of the cylindrical flue can be circular, rectangular, square, or other non-circular shapes in the form of a combination of a rectangle and a circle, etc., and the specific cross-sectional shape of the cylindrical flue can be determined according to actual needs.

[0065] Taking the flue gas passage as a cylindrical flue as an example, multiple sedimentation units 100 in each sedimentation layer are evenly arranged at intervals along the circumferential direction of the cylindrical flue, and multiple support rods 3 are evenly arranged at intervals along the circumferential direction of the cylindrical flue. The specifications of each sedimentation unit 100 are the same. The inclined plate 1 is an isosceles trapezoidal steel plate with a narrow front and a wide rear. The width of the front of the isosceles trapezoidal steel plate is 240 mm, the width of the rear is 275 mm, and the length is 500 mm. When treating high-temperature flue gas, the steel plate material used needs to be a steel plate that can withstand the corresponding temperature. The inclined plate 1 is an isosceles trapezoidal plate body to better adapt to the shape of the cylindrical flue.

[0066] Specifically, the entire cylindrical flue has the same structure as the cylindrical flue in the prior art mentioned in the background art, including a vertically arranged inner cylinder, an ash hopper, and an outer cylinder. The ash hopper is provided at the lower end of the inner cylinder, and the inner diameter of the top end of the ash hopper is greater than the outer diameter of the inner cylinder. The ash hopper has a tapered structure with a gradually decreasing diameter downward, and the bottom outlet of the ash hopper forms an ash outlet. The upper port of the inner cylinder is an open end and forms a flue gas inlet. The lower end of the inner cylinder can be closed or have a filter ash layer with small through holes (the flue gas will not directly flow into the ash hopper from this filter ash layer). The outer cylinder is a cylinder with open upper and lower ends, and the outer cylinder is sleeved outside the inner cylinder and the ash hopper at a radial interval. The annular area between the inner cylinder and the outer cylinder forms the above-mentioned inclined plate sedimentation area; the annular opening between the lower port of the outer cylinder and the ash hopper forms a flue gas outlet. A circulation structure that can communicate with the inclined plate sedimentation area is provided on the side wall of the inner cylinder. After the flue gas flows into the inner cylinder through the flue gas inlet, it enters the annular inclined plate sedimentation area through this circulation structure. The dust-containing flue gas flows from the inlet to the outlet of the corresponding flue gas sedimentation channel. The particles in the dust-containing flue gas can settle on the inclined plate 1, and the captured particles flow downward and flow towards the ash outlet. The separated flue gas is discharged through the flue gas outlet.

[0067] For other cylindrical flues with non-circular cross-sections, the arrangement of the sedimentation device is similar to that in the cylindrical flue, and it is arranged circumferentially after being offset inward parallel to the outer wall of the flue by a certain distance.

[0068] In summary, the shallow inclined plate sedimentation device in this embodiment has the following advantages:

[0069] According to the center of gravity position of the inclined plate 1, a single-point support method for the inclined plate 1 is adopted. This method can improve the disadvantages in the existing multi-point support method for the inclined plate 1, such as the inclined plate 1 needs to be replaced in groups, the support of the sedimentation component occupies a large space, and in the hot and cold alternating environment, the natural expansion or contraction of some positions is limited and cracks are easily generated. In this embodiment, the single-point support method for the inclined plate 1 is adopted, which is more convenient for single-board replacement of the worn sedimentation unit 100, reduces the construction difficulty and maintenance time, and can also save the number of support columns, occupying less space. The reduction of the number of support columns is beneficial to more uniform flue gas flow; at the same time, it is convenient to adjust the spacing between adjacent layers of the inclined plate 1 and control the height of the sedimentation layer group; so as to adjust the spacing between the inclined plates 1 according to the actual production situation and in combination with the simulation calculation results of the flue gas flow field, further optimize the uneven flue gas flow situation, and improve the stability of the shallow inclined plate sedimentation device to separate dust particles. When the single-point support method is applied to working environments with repeated cold and heat alternation such as converter flue gas, there is an interval between adjacent inclined plates 1, and the inclined plate 1 can freely expand or contract in all directions, and cracks are not easily generated, extending the service life of the inclined plate 1.

[0070] The above are only illustrative specific embodiments of the present invention and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A shallow inclined plate settling device, used to be arranged between the smoke inlet and the smoke outlet of the smoke channel, characterized in that: The shallow inclined plate settlement device comprises: A plurality of groups of sedimentation layers are arranged at intervals from top to bottom, each group of the sedimentation layers comprises a plurality of sedimentation units, each of the sedimentation units comprises an inclined plate and a supporting connection member, the plate surface of the inclined plate is arranged to be inclined downward from the first end to the second end thereof, and a notch is provided at the first end of the inclined plate; A plurality of vertically arranged support rods can be inserted into the notches of the corresponding inclined plates in each set of sedimentation layers, and the front and rear ends of the support connectors can be connected to the corresponding inclined plates and support rods, respectively.

2. The shallow inclined plate settling device according to claim 1, characterized in that: The supporting connector includes a supporting structure near its front end, a mounting hole is provided on the inclined plate near the notch, a slot is provided on the supporting structure, the inclined plate can be inserted into the slot and fastened to the supporting structure by a fastener passing through the mounting hole.

3. The shallow inclined plate settling device according to claim 1, characterized in that: The supporting connecting member includes a supporting structure near its front end, a fixing hole is opened on the inclined plate near the notch, the supporting structure includes a supporting block with a supporting inclined surface, a fixing column arranged on the supporting inclined surface and a fixing member with a blocking cap, the inclined plate can be abutted against the supporting inclined surface, the fixing column can be inserted into the fixing hole, the fixing member can be fastened to the fixing column, and the blocking cap can be blocked on the plate surface of the inclined plate facing away from the supporting inclined surface.

4. The shallow inclined plate settling device according to claim 1, characterized in that: The supporting connector also includes a connecting structure near the rear end, and the connecting structure includes two symmetrically arranged arc-shaped side plates. The two arc-shaped side plates can be symmetrically arranged on both sides of the axis of the corresponding support rod and are welded to the support rod by single-point welding.

5. The shallow inclined plate settling device according to claim 1, characterized in that: The supporting connecting member also includes a connecting structure near the rear end, in which a slot with a socket is formed, and the supporting rod can extend from the socket and be fixed in the slot.

6. The shallow inclined plate settling device according to claim 1, characterized in that: The supporting connector also includes a connecting structure near its rear end, which includes two symmetrically arranged arc-shaped clamping plates, the middle parts of the two arc-shaped clamping plates can be clamped on both sides of the supporting rod, and the rear ends of the two arc-shaped clamping plates can be abutted against each other and fastened by fasteners.

7. The shallow inclined plate settling device according to claim 1, characterized in that: The angle between the inclined plate and the horizontal plane is 30-89°.

8. The shallow inclined plate settling device according to claim 1, characterized in that: The support rod is a water cooling pipe.

9. The shallow inclined plate settling device according to claim 1, characterized in that: The smoke channel is an axially vertical cylindrical flue, a plurality of sedimentation units in each group of the sedimentation layers are arranged at intervals along the circumference of the cylindrical flue, and a plurality of the support rods are arranged at intervals along the circumference of the cylindrical flue.

10. The shallow inclined plate settling device according to claim 9, characterized in that: The inclined plate is an isosceles trapezoidal plate.

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