Industrial silicon furnace deposited ash removing device

Abstract

The utility model provides an industrial silicon furnace deposited ash removing device, and relates to the technical field of industrial silicon furnace deposited ash removing. The accumulated ash removing device for the industrial silicon furnace comprises compressed air conveying main pipes arranged on the front side and the rear side of a boiler box body, and each compressed air conveying main pipe is provided with a side ash blowing branch pipe and a top ash blowing branch pipe. The side soot blowing branch pipes and the top soot blowing branch pipes located in the boiler box body are rotationally communicated with rotating pieces correspondingly, one ends of the rotating pieces are communicated with straight pipe parts, side soot blowing pipe openings and top soot blowing pipe openings are formed in the straight pipe parts correspondingly and rotationally communicated with air outlet nozzles, air outlet holes are formed in the air outlet nozzles, and the top soot blowing pipe openings are communicated with the top soot blowing branch pipes. Compressed air drives the rotating piece and the straight pipe part to rotate synchronously, so that dead angles of airflow sprayed out of the air outlet nozzle are reduced, the soot blowing efficiency is improved, meanwhile, the air outlet hole reduces the space where the airflow passes through, the flow speed of the airflow is increased, and the effect of removing accumulated soot in the boiler box body is further enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial silicon furnace soot removal, in particular to an industrial silicon furnace soot removal device. BACKGROUND

[0002] In the prior art, for example, a furnace top soot blowing structure of an industrial silicon boiler is disclosed in publication No. CN206037079U, a compressed air delivery main pipe is arranged on the front and rear sides of the boiler box body, the two compressed air delivery main pipes are respectively provided with a side soot blowing branch pipe and a top soot blowing branch pipe, the side soot blowing branch pipe extends along the transverse direction of the boiler box body, the side soot blowing branch pipe is provided with a side soot blowing nozzle, the side soot blowing nozzle extends into the boiler box body from the front or rear side wall of the boiler box body, the top soot blowing branch pipe extends along the longitudinal direction of the boiler box body, the top soot blowing branch pipe is provided with a top soot blowing nozzle, and the top soot blowing nozzle extends into the boiler box body from the top of the boiler box body.

[0003] In this scheme, the compressed air delivery main pipes are arranged on the front and rear sides of the boiler box body, and the side soot blowing branch pipe and the top soot blowing branch pipe are arranged from the compressed air delivery main pipes, the side soot blowing nozzle of the side soot blowing branch pipe and the top soot blowing nozzle of the top soot blowing branch pipe simultaneously blow soot from the front, rear and top of the boiler box body, thereby ensuring that the tube bundle at the top of the furnace does not accumulate soot.

[0004] In this scheme, although the front, rear and top soot blowing treatment is used in the boiler box, because the exhaust end pipe is fixed and the position of the soot blowing nozzle on the pipe cannot be changed, the direction of the air flow blown in the boiler box is actually fixed, so that the soot blowing action in the boiler box still has a dead angle, which leads to the fact that the soot removal efficiency in the furnace cannot achieve the expected effect. UTILITY MODEL CONTENTS

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides an industrial silicon furnace soot removal device, which aims to improve the problem that the soot blowing action in the boiler box of the prior art still has a dead angle, which leads to the fact that the soot removal efficiency in the furnace cannot achieve the expected effect.

[0006] The application provides an industrial silicon furnace soot removing device, which comprises a compressed air delivery main pipe arranged on the front and rear sides of a boiler box body, side blowing soot branch pipes and top blowing soot branch pipes arranged on the two compressed air delivery main pipes respectively, the side blowing soot branch pipes extend along the lateral direction of the boiler box body, a plurality of side blowing soot nozzles are uniformly arranged on the side walls of the side blowing soot branch pipes and extend into the boiler box body from the front or rear side walls of the boiler box body, the top blowing soot branch pipes extend along the longitudinal direction of the boiler box body, a plurality of top blowing soot nozzles are uniformly arranged on the side walls of the top blowing soot branch pipes and extend into the boiler box body from the top of the boiler box body.

[0007] The side blowing soot branch pipes and the top blowing soot branch pipes on the inner side of the boiler box body are rotationally connected with rotating members, a plurality of spiral strips are uniformly arranged on the inner walls of the rotating members in the circumferential direction, a rotating joint is rotationally connected between the rotating members and one end of the side blowing soot branch pipes and the top blowing soot branch pipes, a straight pipe part is fixedly connected to the end of the rotating member, away from the rotating joint, a plurality of side blowing soot nozzles and a plurality of top blowing soot nozzles are arranged on the straight pipe part, and a plurality of air outlets are rotationally connected to the side blowing soot nozzles and the top blowing soot nozzles.

[0008] According to the industrial silicon furnace soot removing device, the compressed air drives the rotating member and the straight pipe part to rotate synchronously when the compressed air passes through the rotating member, the plurality of air outlets on the straight pipe part rotate, the air flow sprayed by the air outlets can blow soot in the boiler box body in all directions, the existence of dead angles is reduced, the soot blowing efficiency is improved, the plurality of air outlets on the air outlets are used to reduce the space through by the air flow, the flow rate of the air flow is improved, and the soot removing effect in the boiler box body is further enhanced.

[0009] In addition, the industrial silicon furnace soot removing device has the following additional technical features.

[0010] In some specific embodiments of the application, the plurality of side blowing soot nozzles and the plurality of top blowing soot nozzles are spirally distributed on the corresponding straight pipe parts.

[0011] In some specific embodiments of the application, a straight hole is arranged at the center of the air outlet, the straight hole is arranged in a straight cylinder shape, and the straight hole is connected to the straight pipe part.

[0012] In some specific embodiments of the application, a plurality of end spiral holes are uniformly arranged on the end of the conical air outlet, away from the straight pipe part, and the end spiral holes are connected to the straight pipe part.

[0013] In some embodiments of the present application, the end helical holes are arranged in a helical manner, and a plurality of the end helical holes are uniformly arranged on the circumferential side of the straight hole.

[0014] In some embodiments of the present application, a plurality of side helical holes are uniformly arranged on the inclined surface of the taper of the air outlet nozzle, and the plurality of side helical holes are communicated with the straight pipe portion.

[0015] In some embodiments of the present application, the side helical holes are arranged in a helical manner.

[0016] In some embodiments of the present application, an outwardly protruding taper portion is arranged at one end of the air outlet nozzle towards the straight pipe portion, and the air outlet hole penetrates the taper portion. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is a partial schematic view of the internal structure of a boiler box body of an industrial silicon furnace soot removal device according to an embodiment of the present application;

[0019] Figure 2 is a schematic view of the internal structure of a rotating member according to an embodiment of the present application;

[0020] Figure 3 is a schematic view of the internal structure of an air outlet nozzle according to an embodiment of the present application;

[0021] Figure 4 is a schematic view of the entity structure of an air outlet hole according to an embodiment of the present application;

[0022] Figure 5 is a schematic view of the structure of one end of an air outlet nozzle towards a straight pipe portion according to an embodiment of the present application.

[0023] Figure legend: 1, rotating member; 11, helical strip; 12, rotating joint; 13, straight pipe portion; 2, air outlet nozzle; 21, air outlet hole; 211, straight hole; 212, end helical hole; 213, side helical hole; 22, taper portion. DETAILED DESCRIPTION

[0024] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0025] The industrial silicon boiler belongs to a kind of waste heat boiler, when high-temperature flue gas and working medium exchange heat, the dust in high-temperature flue gas will gradually adhere to the surface of the tube bundle in the industrial silicon boiler tank, when the slag and dust on the surface of the tube bundle are serious, it will cause the temperature of exhaust gas to rise, the heat loss of exhaust gas to increase, and the effect of waste heat utilization to decrease, in order to improve the utilization efficiency of high-temperature flue gas, it is necessary to regularly clean the dust on the boiler tank and the tube bundle inside.

[0026] According to the industrial silicon furnace dust removal device provided by the embodiment of the present application, one compressed air delivery main pipe is arranged on the front and rear sides of the boiler tank, the two compressed air delivery main pipes are respectively provided with a side dust blowing branch pipe and a top dust blowing branch pipe, the side dust blowing branch pipe extends along the transverse direction of the boiler tank, a plurality of side dust blowing pipe openings are uniformly arranged on the side wall of the side dust blowing branch pipe, the side dust blowing pipe openings extend into the boiler tank from the front side wall or the rear side wall of the boiler tank, the top dust blowing branch pipe extends along the longitudinal direction of the boiler tank, a plurality of top dust blowing pipe openings are uniformly arranged on the side wall of the top dust blowing branch pipe, and the top dust blowing pipe openings extend into the boiler tank from the top of the boiler tank (not shown in the figure).

[0027] Among them, the side dust blowing branch pipe and the top dust blowing branch pipe located inside the boiler tank are respectively rotatably connected with a rotating piece 1, a plurality of spiral strips 11 are circumferentially and uniformly arranged on the inner wall of the rotating piece 1, a rotating joint 12 is rotatably connected to one end of the rotating piece 1 and the side dust blowing branch pipe and the top dust blowing branch pipe, and a straight pipe portion 13 is fixedly connected to the end of the rotating piece 1 away from the rotating joint 12. Figure 1 and Figure 2 As shown in the drawings, when the compressed air passes through the rotating piece 1, the rotating piece 1 will generate rotational potential energy under the action of the spiral strips 11, and drive the rotating piece 1 to rotate, so that the rotating piece 1 and the straight pipe portion 13 will rotate synchronously, and then it can be understood that the side dust blowing branch pipe and the top dust blowing branch pipe located inside the boiler tank will rotate during the dust blowing process.

[0028] It should be noted that the plurality of side dust blowing pipe openings and the plurality of top dust blowing pipe openings are arranged on the straight pipe portion 13, that is, the side dust blowing branch pipe and the top dust blowing branch pipe located inside the boiler tank are the straight pipe portion 13.

[0029] Further need to explain is, a plurality of side blowing pipe orifice and a plurality of top blowing pipe orifice on the respective corresponding straight pipe 13 in spiral distribution, so it can be understood that, when the straight pipe 13 rotates, the soot in the boiler box and its tube bundle form no dead angle blowing action.

[0030] As Figure 1 shown, the side blowing pipe orifice and top blowing pipe orifice are respectively rotated and communicated with the air outlet nozzle 2, and the air outlet nozzle 2 is provided with a plurality of air outlet holes 21.

[0031] Specifically, as Figures 3-5 shown, the air outlet nozzle 2 is provided with a straight hole 211 at the axis, the straight hole 211 is provided in a straight cylinder shape, the straight hole 211 is communicated with the straight pipe 13, the air outlet nozzle 2 is provided with a plurality of end spiral holes 212 on the end away from the straight pipe 13, the end spiral hole 212 is communicated with the straight pipe 13, the end spiral hole 212 is provided in a spiral shape, and the plurality of end spiral holes 212 are uniformly arranged on the side of the straight hole 211; the air outlet nozzle 2 is provided with a plurality of side spiral holes 213 on the inclined surface of the taper, the plurality of side spiral holes 213 are communicated with the straight pipe 13, and the side spiral hole 213 is provided in a spiral shape.

[0032] Therefore, it can be understood that the compressed air passing through the end spiral hole 212 and the side spiral hole 213 will generate rotational potential energy to the air outlet nozzle 2 and drive the air outlet nozzle 2 to rotate, and because the side spiral hole 213 is located on the inclined surface of the taper of the air outlet nozzle 2, the side spiral hole 213 will spray the airflow in a radial shape, increase the coverage area of the airflow, and further reduce the existence of the dead angle of soot removal.

[0033] And the design of the air outlet hole 21 will make the space through which the compressed air passes smaller, forcing the flow rate of the airflow to increase, which will improve the effect of the airflow on the removal of soot.

[0034] As Figure 3 and Figure 5 shown, the air outlet nozzle 2 is provided with an outwardly protruding conical surface 22 at the end inside and towards the straight pipe 13, and the air outlet hole 21 penetrates the conical surface 22, so it can be understood that the design of the conical surface 22 further uniformly distributes the airflow, avoids the airflow in the straight hole 211 being too strong, and the airflow in the end spiral hole 212 and the side spiral hole 213 being too weak, avoids the phenomenon that the airflow ejected from the entire air outlet nozzle 2 is obviously different in local strength, and avoids affecting the effect of the airflow on the removal of soot.

[0035] The industrial silicon furnace soot cleaning device of the present application makes the straight pipe part 13 located in the boiler box body rotate, and the air outlet nozzle 2 on the straight pipe part 13 rotates while following the rotation of the straight pipe part 13, and the airflow sprayed from the air outlet nozzle 2 is in balanced radial form, so that the existence of soot cleaning dead angle is reduced as much as possible, and the cleaning efficiency and effect of soot are improved.

[0036] It should be noted that the specific model and specification of the rotary joint 12 need to be selected and determined according to the actual specification of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0037] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An industrial silicon furnace soot cleaning device, comprising a compressed air delivery main pipe arranged on the front and rear sides of a boiler body, respectively, the two compressed air delivery main pipes are respectively provided with a side soot blowing branch pipe and a top soot blowing branch pipe, the side soot blowing branch pipe extends along the transverse direction of the boiler body, the side wall of the side soot blowing branch pipe is uniformly provided with a plurality of side soot blowing nozzles, the side soot blowing nozzles extend into the boiler body from the front or rear side wall of the boiler body, the top soot blowing branch pipe extends along the longitudinal direction of the boiler body, the side wall of the top soot blowing branch pipe is uniformly provided with a plurality of top soot blowing nozzles, the top soot blowing nozzles extend into the boiler body from the top of the boiler body, characterized in that: The side soot blowing branch pipe and the top soot blowing branch pipe inside the boiler body are respectively rotatably connected with a rotating piece (1), the inner wall of the rotating piece (1) is circumferentially uniformly provided with a plurality of spiral strips (11), one end of the rotating piece (1) connected with the side soot blowing branch pipe and the top soot blowing branch pipe is rotatably connected with a rotating joint (12), the end of the rotating piece (1) away from the rotating joint (12) is fixedly connected with a straight pipe portion (13), a plurality of side soot blowing nozzles and a plurality of top soot blowing nozzles are respectively arranged on the straight pipe portion (13), the side soot blowing nozzles and the top soot blowing nozzles are respectively rotatably connected with an air outlet nozzle (2), the air outlet nozzle (2) is provided with a plurality of air outlet holes (21).

2. A device for removing deposits from an industrial silicon furnace as claimed in claim 1, characterized in that A plurality of side soot blowing nozzles and a plurality of top soot blowing nozzles are spirally distributed on the respective corresponding straight pipe portions (13).

3. A device for removing deposits from an industrial silicon furnace as claimed in claim 1, characterized in that A straight hole (211) is arranged through the center of the air outlet nozzle (2), the straight hole (211) is arranged in a straight cylinder shape, and the straight hole (211) is connected to the straight pipe portion (13).

4. A device for removing deposits from an industrial silicon furnace as claimed in claim 3, characterized in that The end of the air outlet nozzle (2) away from the straight pipe portion (13) is uniformly provided with a plurality of end spiral holes (212), and the end spiral holes (212) are connected to the straight pipe portion (13).

5. A device for removing deposits from an industrial silicon furnace as claimed in claim 4, characterized in that The end spiral holes (212) are arranged in a spiral shape, and a plurality of end spiral holes (212) are uniformly arranged on the side of the straight hole (211).

6. A device for removing deposits from an industrial silicon furnace as claimed in claim 1, characterized in that A plurality of side spiral holes (213) are uniformly arranged on the inclined surface of the tapered air outlet nozzle (2), and a plurality of side spiral holes (213) are connected to the straight pipe portion (13).

7. A device for removing deposits from an industrial silicon furnace as claimed in claim 6, characterized in that The side spiral holes (213) are arranged in a spiral shape.

8. A device for removing deposits from an industrial silicon furnace as claimed in claim 1, characterized in that An outwardly protruding conical surface portion (22) is arranged at the end of the air outlet nozzle (2) inside and towards the straight pipe portion (13), and the air outlet holes (21) pass through the conical surface portion (22).

Images