Three-ring seam structure for wet dust removal of large converter

Abstract

The utility model relates to the field of wet dust removal of converters, and particularly discloses a three-ring seam structure for wet dust removal of a large converter, which comprises a tower body and a dewatering cylinder, a circular seam cylinder is arranged between the tower body and the dewatering cylinder, the outer side of the dewatering cylinder is connected with an exhaust pipe, and the bottom of the dewatering cylinder is provided with a guide rod. A driving mechanism is further mounted at the bottom of the guide rod; the number of the circular seam cylinders and the number of the guide rods are both three. According to the utility model, a large-scale circular seam is changed into three parallel circular seam cylinder structures, and the guide rod is matched with the hydraulic oil cylinder in a driving manner, so that the system can accurately control the opening and closing degree of the circular seam according to the actual smoke amount. According to the dynamic adjusting mechanism, a certain circular seam can be independently adjusted to cope with local load changes, the three-ring seam can be synchronously adjusted to achieve full-process efficient dust removal, the treatment capacity of the system on smoke dust of a large converter with 200 tons or above is remarkably improved, and the treatment limit of a traditional single-circular-seam structure is broken through.

Description

TECHNICAL FIELD

[0001] The utility model belongs to converter wet dust removal field, concretely is a kind of three-ring slit structure of large-scale converter wet dust removal. BACKGROUND

[0002] In the steel metallurgical industry, converter steelmaking is an important production link, and a large amount of high-temperature, dust-containing flue gas is generated in the converter steelmaking process. If these flue gases are directly discharged without effective treatment, not only will it cause serious environmental pollution, but also will lead to a large amount of heat energy loss and metal dust waste. Therefore, the converter dust capture and purification system is an indispensable key equipment in the converter steelmaking process, and its performance directly affects the environmental and economic benefits of steelmaking production.

[0003] At present, the converter dust capture system mainly adopts ring slit structure to realize the sealing and capture of dust. The traditional ring slit structure is usually designed as a large single ring slit, and its working principle is to control the flow path of flue gas by adjusting the opening and closing degree of the ring slit, thereby realizing the capture of dust. In the adjustment mode, a driving device such as hydraulic cylinder is usually used to push the related parts to change the size of the ring slit gap. Hydraulic drive has the advantages of large output force and stable movement, which can meet the driving force requirement of ring slit adjustment. At the same time, through reasonable hydraulic system design, the opening and closing degree of the ring slit can be accurately controlled.

[0004] However, the existing single ring slit structure has obvious defects in actual application. Because the amount of dust and the temperature distribution in different areas of the large converter are quite different during steelmaking, and the amount of dust changes dynamically as the steelmaking process advances. The single ring slit structure is difficult to adjust differentially according to the actual amount of dust in each area of the converter, and it is not capable of dealing with local load changes. For example, when the amount of dust on one side of the converter suddenly increases, the single ring slit can only adjust the opening and closing degree as a whole, and cannot make targeted adjustments to the ring slit corresponding to that area, resulting in either insufficient local dust capture or excessive overall ring slit opening degree affecting system sealing and dust removal efficiency. The limitations of this adjustment mode make it difficult for the traditional single ring slit structure to achieve efficient and stable dust removal when dealing with the dust of a large converter with a capacity of more than 200 tons, and it cannot meet the higher requirements of modern steelmaking production for environmental protection and energy saving. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a three-ring slit structure for large-scale converter wet dust removal, to solve the problem that the single ring slit structure in the prior art cannot adjust differentially according to the actual amount of dust in different areas of the converter, resulting in poor dust removal effect when dealing with the dust of a large converter with a capacity of more than 200 tons, and failing to meet the higher requirements of modern steelmaking production for environmental protection and energy saving.

[0006] The utility model provides a three-ring slit structure of large converter wet dust removal, including tower body and dehydration cylinder, the middle installation of tower body and dehydration cylinder has ring slit cylinder, the outside connection of dehydration cylinder has exhaust pipe, the bottom of dehydration cylinder is provided with guide rod, the bottom of guide rod still installs drive mechanism,

[0007] The number of ring slit cylinder and guide rod is three, and they are in correspondence and in equilateral triangle distribution, the upper end of guide rod is connected with ring slit cone body matched with ring slit cylinder.

[0008] Preferably, the inside of the dehydration cylinder is also fixedly installed with a cyclone air distribution plate.

[0009] Preferably, the drive mechanism is a hydraulic cylinder.

[0010] The hydraulic cylinder is used to drive the guide rod to move up and down.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By changing the large single ring slit into three parallel ring slit cylinder structures, and cooperating with the driving of guide rod and hydraulic cylinder, the system can accurately control the opening degree of the ring slit according to the actual smoke dust amount; this dynamic adjustment mechanism can not only adjust a ring slit to cope with local load changes, but also can synchronously adjust the three ring slits to realize efficient dust removal in the whole process, significantly improving the processing capacity of the system for smoke dust of large converters above 200 tons, and breaking through the processing limit of the traditional single ring slit structure.

[0013] When running, if any hydraulic cylinder has a problem, the remaining hydraulic cylinders can still work to drive the guide rod to rise and work.

[0014] By additionally arranging a cyclone air distribution plate in the dehydration cylinder, the smoke gas treated by the three ring slits forms a rotating vortex. This structure generates a centrifugal effect by forcibly rotating the air flow, promotes the full collision and combination of smoke dust particles and water mist, greatly improves the capture efficiency of small particles. At the same time, the air flow path in the dehydration cylinder is optimized, creating ideal conditions for subsequent deep dehydration, realizing the dual improvement of air flow balanced distribution and dust removal effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a sectional view of the dehydration cylinder of the utility model.

[0017] In the drawing: 1, tower body; 2, dehydration cylinder; 3, ring slit cylinder; 4, exhaust pipe; 5, guide rod; 6, cyclone air distribution plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0019] As shown in Figure 1 and Figure 2 :

[0020] Embodiment one: the utility model provides a large converter wet dust removal's three ring gap structure, including tower body 1 and dehydration cylinder 2, the middle installation of tower body 1 and dehydration cylinder 2 has ring gap cylinder 3, the outside connection of dehydration cylinder 2 has exhaust pipe 4, the bottom of dehydration cylinder 2 is provided with guide rod 5, and the bottom of guide rod 5 is also installed with drive mechanism.

[0021] The number of ring gap cylinder 3 and guide rod 5 is three, and they are corresponded up and down and are in equilateral triangle distribution, and the upper end of guide rod 5 is connected with the ring gap cone body matched with ring gap cylinder 3.

[0022] Specifically, the inside of dehydration cylinder 2 is also fixedly installed with cyclone air distribution plate 6.

[0023] Among them, the inside of dehydration cylinder 2 is fixedly installed with cyclone air distribution plate 6, which realizes the balanced distribution of flue gas after three ring gap dust removal, is beneficial to improve the fluidity and realizes further dust removal and dehydration effect.

[0024] Specifically, the drive mechanism is hydraulic oil cylinder.

[0025] The hydraulic oil cylinder is used to drive guide rod 5 to move up and down.

[0026] Among them, the drive mechanism adopts hydraulic oil cylinder, and by controlling different height positions of hydraulic oil cylinder, one, two or three ring gaps can be adjusted simultaneously, to meet the existing emission standard of environmental protection requirement.

[0027] From the above, in the large converter wet dust removal operation, tower body 1 and dehydration cylinder 2 cooperatively constitute the core processing space, ring gap cylinder 3 is arranged in the middle between the two to form three ring gap structure, and dynamic adjustment is realized through the driving cooperation of guide rod 5 and drive mechanism.

[0028] When the smoke dust enters the system, the drive mechanism adjusts the height of guide rod 5, so that the ring gap cone body moves up and down, and then accurately controls the opening degree of three ring gap cylinders 3, which can adjust a ring gap alone to adapt to the change of smoke dust amount, and can also adjust two ring gaps and three ring gaps simultaneously to realize efficient dust removal, and significantly improve the processing capacity of the system to large converter smoke dust.

[0029] The swirling air distribution plate 6, which is fixedly installed inside the dehydration cylinder 2, generates a rotating vortex as the flue gas flows, so that the flue gas treated by the three-ring seam achieves a balanced airflow distribution. The swirling air distribution plate 6 forms a centrifugal effect by forcing the airflow to rotate, which promotes the full collision and combination of dust particles and water mist, greatly improving the collection efficiency of small particles. At the same time, it optimizes the airflow path inside the dehydration cylinder 2, creating ideal conditions for subsequent deep dehydration.

[0030] The extended dehydration cylinder 2 and the swirl uniform air distribution plate 6 form a synergistic effect, significantly increasing the residence time of flue gas inside the cylinder. Combined with the multiple particle collisions generated by the swirl, the tiny dust particles aggregate into larger particles and then settle.

[0031] The embodiments of this utility model are given for the purpose of illustration and description. Although the embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Any changes, modifications, substitutions and variations made by those skilled in the art to the above embodiments within the scope of this utility model should be included within the protection scope of this utility model.

Claims

1. A three-ring joint structure for wet dust removal of a large converter, characterized by, Including tower body (1) and dehydration cylinder (2), the middle of tower body (1) and dehydration cylinder (2) is installed with ring slit cylinder (3), the outside of dehydration cylinder (2) is connected with exhaust pipe (4), the bottom of dehydration cylinder (2) is provided with guide rod (5), the bottom of guide rod (5) is also installed with driving mechanism; The number of ring slit cylinder (3) and guide rod (5) is three, and it is corresponding and is in equilateral triangle distribution, the upper end of guide rod (5) is connected with ring slit cone body that is matched with ring slit cylinder (3).

2. The three-ring joint structure for wet dust collection of a large converter according to claim 1, wherein The inside of dehydration cylinder (2) is also fixedly installed with cyclone air uniformizing plate (6).

3. The three-ring joint structure for wet dust collection of a large converter according to claim 1, wherein The driving mechanism is hydraulic oil cylinder; The hydraulic oil cylinder is used for driving guide rod (5) to move up and down.

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