Dust removal and rapid ash conveying device for iron works

Abstract

The utility model relates to the field of dust removal of high-temperature flue gas, and discloses a dust removal and rapid ash conveying device for an iron-making plant, which comprises an iron-making plant dust removal box, a dust removal frame is arranged in the iron-making plant dust removal box, and a dust removal screen plate is fixedly arranged on the dust removal frame; the rapid ash conveying mechanism comprises a baffle, a sliding rod, a spring, a connecting pipe, a high-pressure air outlet head, a connecting column, a high-pressure air pipe and an ash conveying pipeline; the baffle is fixedly installed on the inner wall of a dust removal box of an iron making plant, the sliding rod is vertically installed on the baffle in a sliding mode, the bottom end of the sliding rod is fixedly connected with the dust removal frame, the spring is fixedly installed between the dust removal frame and the baffle, the connecting pipe is fixedly installed at the bottom of the dust removal frame, and the high-pressure air outlet head and the connecting column are both fixedly connected with the connecting pipe. Bottom grooves are formed in the bottom ends of the connecting columns, and the high-pressure air pipes make contact with the inner walls of the bottom grooves. The dust removal device has the advantages and effects that impurities adhered to the dust removal screen plate can be quickly removed.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature flue gas dust removal, in particular to a dust removal and rapid ash conveying device for an iron-making plant. Background Art

[0002] The sintering ring cooler in an iron-making plant generally has a waste heat recovery device to recover and utilize the waste heat of the high-temperature flue gas generated by the ring cooler, so as to reduce energy consumption. The high-temperature flue gas is led out from the main flue of the sintering machine, and after the waste heat of the flue gas is recovered, it returns to the main flue of the sintering machine. Since this high-temperature flue gas is not dust-removed, it contains a large amount of mineral dust. Due to the large amount of particulate metal powder in the flue gas, the heat exchanger and flue of the waste heat recovery device are often worn and blocked, resulting in damage to the waste heat recovery device and affecting the waste heat recovery effect.

[0003] Therefore, it is necessary to filter the impurities in the high-temperature flue gas before recovering the waste heat of the high-temperature flue gas. At present, a dust removal mesh plate is used to filter the impurities in the high-temperature flue gas. However, when a large amount of impurities adhere to the dust removal mesh plate, the impurities adhered to the dust removal mesh plate cannot be quickly cleaned and the ash is conveyed, which will affect the efficiency of the high-temperature flue gas treatment. Therefore, it is necessary to design a dust removal and rapid ash conveying device for an iron-making plant to solve the above problems.

[0004] The information disclosed in this background art section is only for enhancing the understanding of the overall background of the utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a dust removal and rapid ash conveying device for an iron-making plant to solve the above problems.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A dust removal and rapid ash conveying device for an iron-making plant, comprising:

[0007] A dust removal box for an iron-making plant, in which a dust removal frame is arranged, and a dust removal mesh plate is fixedly arranged on the dust removal frame;

[0008] A rapid ash conveying mechanism, which includes a baffle plate, a sliding rod, a spring, a connecting pipe, a high-pressure air outlet head, a connecting column, a high-pressure air pipe and an ash conveying pipe;

[0009] The baffle is fixedly installed on the inner wall of the dust removal box in the ironmaking plant. The sliding rod is vertically slidably installed on the baffle. The bottom end of the sliding rod is fixedly connected to the dust removal frame. The spring is fixedly installed between the dust removal frame and the baffle. The connecting pipe is fixedly installed at the bottom of the dust removal frame. The high-pressure air outlet head and the connecting column are both fixedly connected to the connecting pipe. A bottom groove is formed at the bottom end of the connecting column. The high-pressure air pipe is in contact with the inner wall of the bottom groove. A plurality of air outlet holes are formed on the inner wall of the bottom groove. The ash conveying pipeline is fixedly installed on the dust removal box in the ironmaking plant.

[0010] A further setting of the present utility model is that the high-pressure air pipe is fixedly installed on the dust removal box in the ironmaking plant.

[0011] A further setting of the present utility model is that a high-temperature flue gas pipe of the ironmaking plant is fixedly arranged on the dust removal box of the ironmaking plant.

[0012] By adopting the above technical solution, the high-temperature flue gas of the ironmaking plant is introduced into the dust removal box of the ironmaking plant.

[0013] A further setting of the present utility model is that a valve is installed on the ash conveying pipeline.

[0014] A further setting of the present utility model is that a limiting plate is fixedly arranged at the top end of the sliding rod, and the bottom of the limiting plate is in contact with the baffle.

[0015] By adopting the above technical solution, the sliding rod can be limited.

[0016] A further setting of the present utility model is that a sealing gasket is embedded on the outer side of the high-pressure air pipe, and the sealing gasket is in sealing contact with the bottom groove.

[0017] By adopting the above technical solution, the sealing performance between the high-pressure air pipe and the bottom groove is ensured.

[0018] A further setting of the present utility model is that the air outlet holes are communicated with the connecting pipe.

[0019] A further setting of the present utility model is that a sliding hole is formed at the top of the baffle, and the sliding rod is vertically slidably installed in the sliding hole.

[0020] The beneficial effect of the present utility model is:

[0021] 1. Through the rapid ash conveying mechanism provided by the present utility model, by intermittently conveying high-pressure air into the high-pressure air pipe, the dust removal mesh plate can be made to reciprocate vertically, and the impurities adhered to the dust removal mesh plate can be quickly removed;

[0022] 2. Through the rapid ash conveying mechanism provided by the present utility model, high-pressure air is intermittently conveyed into the high-pressure air pipe. The high-pressure air will enter the connecting pipe through the air outlet holes and blow onto the dust removal mesh plate through the high-pressure air outlet head, which can blow off the impurities on the dust removal mesh plate and quickly remove the impurities adhering to the dust removal mesh plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0024] Figure 1 and Figure 2 FIG. 1 is a schematic perspective view of a rapid dust removal and ash conveying device for an ironmaking plant proposed by the present utility model.

[0025] Figure 3 FIG. 2 is a schematic sectional view of a rapid dust removal and ash conveying device for an ironmaking plant proposed by the present utility model.

[0026] Figure 4 is Figure 3 a schematic view of the structure of part A in FIG.

[0027] Figure 5 is Figure 4 a schematic view of the structure of part B in FIG.

[0028] In the figures, 1 is the dust removal box of the ironmaking plant; 2 is the high-temperature flue gas pipe of the ironmaking plant; 3 is the baffle; 4 is the sliding rod; 5 is the dust removal frame; 6 is the dust removal mesh plate; 7 is the limiting plate; 8 is the spring; 9 is the connecting pipe; 10 is the high-pressure air outlet head; 11 is the connecting column; 12 is the high-pressure air pipe; 13 is the bottom groove; 14 is the air outlet hole; 15 is the ash conveying pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0031] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the present utility model provides a dust removal and rapid ash conveying device for an ironmaking plant, including:

[0032] The dust removal box 1 of the ironmaking plant, in which a dust removal frame 5 is provided. A dust removal mesh plate 6 is fixedly arranged on the dust removal frame 5. It should be noted that the dust removal mesh plate 6 filters impurities in the high-temperature flue gas of the ironmaking plant.

[0033] A rapid ash conveying mechanism, which includes a baffle 3, a sliding rod 4, a spring 8, a connecting pipe 9, a high-pressure air outlet head 10, a connecting column 11, a high-pressure air pipe 12 and an ash conveying pipe 15;

[0034] The baffle 3 is fixedly installed on the inner wall of the dust removal box 1 of the ironmaking plant. The sliding rod 4 is vertically slidably installed on the baffle 3. The bottom end of the sliding rod 4 is fixedly connected to the dust removal frame 5. The spring 8 is fixedly installed between the dust removal frame 5 and the baffle 3. The connecting pipe 9 is fixedly installed at the bottom of the dust removal frame 5. Both the high-pressure air outlet head 10 and the connecting column 11 are fixedly connected to the connecting pipe 9. A bottom groove 13 is opened at the bottom end of the connecting column 11. The high-pressure air pipe 12 is in contact with the inner wall of the bottom groove 13. It should be noted that the high-pressure air pipe 12 is connected to an external high-pressure air pump for conveying high-pressure air;

[0035] A plurality of air outlet holes 14 are opened on the inner wall of the bottom groove 13. The ash conveying pipe 15 is fixedly installed on the dust removal box 1 of the ironmaking plant.

[0036] Through the above-mentioned rapid ash removal mechanism, when it is necessary to clean the impurities adhered to the dust removal mesh plate 6, high-pressure air is introduced into the high-pressure air pipe 12. The high-pressure air will enter the bottom groove 13. As the air pressure in the bottom groove 13 increases, it will drive the connecting column 11 to move upward until the air outlet hole 14 moves above the high-pressure air pipe 12. At this time, the high-pressure air will enter the connecting pipe 9 through the air outlet hole 14 and blow on the dust removal mesh plate 6 through the high-pressure air outlet head 10, which can blow off the impurities on the dust removal mesh plate 6. Then, the delivery of high-pressure air is immediately stopped. At this time, the spring 8 drives the dust removal frame 5 to reset due to its own elastic force. Repeating this several times can make the dust removal mesh plate 6 shake in the vertical position, and with the blowing of high-pressure air, the impurities adhered to the dust removal mesh plate 6 can be quickly removed. The removed impurities fall to the lower position inside the ironmaking plant dust removal box 1 and are then discharged through the ash conveying pipeline 15.

[0037] Specifically, the high-pressure air pipe 12 is fixedly installed on the ironmaking plant dust removal box 1. The ironmaking plant high-temperature flue gas pipe 2 is fixedly arranged on the ironmaking plant dust removal box 1. It should be noted that the high-pressure air pipe 12 is connected to an external high-pressure air pump, and the ironmaking plant high-temperature flue gas pipe 2 is used to introduce the high-temperature flue gas of the ironmaking plant.

[0038] Specifically, a valve is installed on the ash conveying pipeline 15. It should be noted that the ash is discharged through the ash conveying pipeline 15.

[0039] Specifically, a limit plate 7 is fixedly arranged at the top of the sliding rod 4, and the bottom of the limit plate 7 is in contact with the baffle 3. It should be noted that the sliding rod 4 can be limited.

[0040] Specifically, a gasket is embedded on the outside of the high-pressure air pipe 12, and the gasket is in sealed contact with the bottom groove 13. It should be noted that the sealing performance between the high-pressure air pipe 12 and the bottom groove 13 can be ensured.

[0041] Specifically, the air outlet hole 14 is communicated with the connecting pipe 9. It should be noted that it is convenient for high-pressure air to enter the connecting pipe 9 through the air outlet hole 14.

[0042] Specifically, a sliding hole is opened at the top of the baffle 3, and the sliding rod 4 is vertically slidably installed in the sliding hole. It should be noted that it is convenient for the sliding rod 4 to move stably in the vertical direction.

[0043] Working principle:

[0044] S1: The dust removal mesh plate 6 filters the impurities in the high-temperature flue gas of the iron smelting plant. When it is necessary to clean the impurities adhered to the dust removal mesh plate 6, high-pressure air is introduced into the high-pressure air pipe 12. The high-pressure air will enter the bottom groove 13. As the air pressure in the bottom groove 13 increases, it will drive the connecting column 11 to move upward. The connecting column 11 drives the connecting pipe 9 to move upward, and the connecting pipe 9 drives the high-pressure air outlet head 10 and the dust removal frame 5 to move upward. The dust removal frame 5 will compress the spring 8 until the air outlet hole 14 moves above the high-pressure air pipe 12. At this time, the high-pressure air will enter the connecting pipe 9 through the air outlet hole 14 and be blown onto the dust removal mesh plate 6 through the high-pressure air outlet head 10, and the impurities on the dust removal mesh plate 6 can be blown off;

[0045] S2: Immediately stop the delivery of high-pressure air. At this time, the spring 8 drives the dust removal frame 5 to reset due to its own elastic force. Repeating this several times can make the dust removal mesh plate 6 shake in the vertical position. And with the blowing of the high-pressure air, the impurities adhered to the dust removal mesh plate 6 can be quickly removed. The removed impurities fall to the lower position inside the dust removal box 1 of the iron smelting plant and are then discharged through the ash conveying pipe 15.

[0046] The above has introduced in detail a dust removal and rapid ash conveying device for an iron smelting plant provided by the present utility model. Specific embodiments are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A dust removal and rapid ash conveying device for an ironmaking plant, characterized in that: include: An ironworks dust removal box (1), wherein the ironworks dust removal box (1) is provided with a dust removal frame (5), and a dust removal mesh plate (6) is fixedly provided on the dust removal frame (5); A rapid ash conveying mechanism, the rapid ash conveying mechanism comprising a baffle (3), a slide rod (4), a spring (8), a connecting pipe (9), a high-pressure air outlet head (10), a connecting column (11), a high-pressure air pipe (12) and an ash conveying pipeline (15); The baffle (3) is fixedly mounted on the inner wall of the dust removal box (1) of the ironmaking plant, the slide bar (4) is vertically slidably mounted on the baffle (3), the bottom end of the slide bar (4) is fixedly connected to the dust removal frame (5), the spring (8) is fixedly mounted between the dust removal frame (5) and the baffle (3), the connecting pipe (9) is fixedly mounted on the bottom of the dust removal frame (5), the high-pressure gas outlet head (10) and the connecting column (11) are both fixedly connected to the connecting pipe (9), a bottom groove (13) is provided at the bottom end of the connecting column (11), the high-pressure gas pipe (12) is in contact with the inner wall of the bottom groove (13), a plurality of gas outlet holes (14) are provided on the inner wall of the bottom groove (13), and the ash conveying pipe (15) is fixedly mounted on the dust removal box (1) of the ironmaking plant.

2. The dust removal and rapid ash conveying device for an ironmaking plant according to claim 1 is characterized in that: The high-pressure air pipe (12) is fixedly mounted on the dust removal box (1) of the ironmaking plant.

3. The dust removal and rapid ash conveying device for an ironmaking plant according to claim 1 is characterized in that: The ironmaking plant dust removal box (1) is fixedly provided with an ironmaking plant high-temperature flue gas pipe (2).

4. The dust removal and rapid ash conveying device for an ironmaking plant according to claim 1, characterized in that: A valve is installed on the ash conveying pipeline (15).

5. The dust removal and rapid ash conveying device for an ironmaking plant according to claim 1, characterized in that: A limiting plate (7) is fixedly arranged on the top of the sliding rod (4), and the bottom of the limiting plate (7) is in contact with the baffle (3).

6. The dust removal and rapid ash conveying device for an ironmaking plant according to claim 1, characterized in that: A sealing gasket is embedded on the outside of the high-pressure air pipe (12), and the sealing gasket is in sealing contact with the bottom groove (13).

7. The dust removal and rapid ash conveying device for an ironmaking plant according to claim 1, characterized in that: The air outlet hole (14) is communicated with the connecting pipe (9).

8. The dust removal and rapid ash conveying device for an ironmaking plant according to claim 1, characterized in that: The baffle (3) has a sliding hole at the top, and the sliding rod (4) is vertically slidably installed in the sliding hole.

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