Dustproof structure of coke charging furnace mouth for dry quenching

Abstract

The utility model discloses a kind of dustproof structures for coke oven mouth of dry quenching, including hopper, it is characterized by: the hopper is fixedly connected adapter by bolt, adapter is fixedly connected in water tank inner ring by bolt, and water tank is slidably connected sealing cover;The beneficial effect of the utility model is reflected in: lower hopper installs sealing water tank, lower flange is independent structure, and can be disassembled and replaced;Water tank and flange are filled with refractory ceramic fiber blanket, insulate water tank from high-temperature roasting temperature of coke oven mouth, heat conduction to water tank, reduce the stress concentration caused by water tank from cold water in tank and high temperature outside tank, cause the risk of weld cracking;Water tank and sliding sealing cover form water seal simultaneously, effectively prevent dust overflow.

Description

Technical Field

[0001] This utility model relates to the field of dry quenching technology, specifically to a dustproof structure for the furnace opening of a dry quenching coke loading machine. Background Technology

[0002] Due to the unique production process of dry quenching coke, loading red-hot coke requires lifting a full hopper to the top of the dry quenching furnace, opening the furnace lid, and allowing the coke to fall freely into the furnace under gravity. This process generates flammable flue gas: During the coke loading process, when the furnace lid is opened, the high temperature of approximately 1000°C inside the furnace generates thermal buoyancy. Pressure fluctuations within the system during the process of opening the furnace lid to begin loading and closing the loading device after loading cause flue gas to escape. This portion of the dry quenching flue gas is not only high in temperature but also has a large volume, causing environmental pollution.

[0003] The existing dustproof structure consists of a heat-resistant ceramic fiber cloth with one end fixed to the lower hopper body and the other end connected to a sliding sealing cover, serving as a dustproof sealing structure for the furnace mouth during the dry quenching and coking process. However, the heat-resistant ceramic fiber cloth in this structure has a short service life, requires frequent replacement, and has an unsatisfactory dustproof effect.

[0004] The second method involves directly welding a water trough to the lower part of the hopper, with a sealing ring welded inside the sliding sealing cover. During operation, the sliding sealing ring is inserted into the water trough of the lower hopper for sealing. This structure involves directly welding the water trough onto the lower hopper. Due to the high external temperature and low internal temperature of the water trough in the operating environment, welding stress concentration occurs, which can easily cause weld cracking and leakage, reducing service life and presenting problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, this utility model provides a solution to the existing problems.

[0006] This utility model is achieved through the following technical solution: a dustproof structure for the furnace mouth of a dry quenching coke oven, including a hopper, characterized in that: the hopper is fixedly connected to an adapter by bolts, the adapter is fixedly connected to the inner ring of a water tank by bolts, and a sealing cover is slidably connected inside the water tank; the water tank is fixedly connected to a flange by bolts, and a heat-resistant ceramic fiber blanket is fixedly clamped between the water tank and the flange.

[0007] Preferably, the inner ring of the sealing cover is fixedly connected to the first sealing ring, the outer ring of the sealing cover is fixedly connected to the second sealing ring, and the first sealing ring is slidably connected inside the water tank.

[0008] Preferably, the sealing cover is located between the hopper and the water tank.

[0009] The beneficial effects of this utility model are as follows: the lower hopper is equipped with a sealing water tank and the lower flange are both independent structures that can be disassembled and replaced; the water tank and the flange are filled with a refractory ceramic fiber blanket to isolate the water tank from the high temperature rise caused by the furnace opening, and to conduct heat to the water tank, thereby reducing the risk of weld cracking caused by stress concentration caused by cold water inside the tank and high temperature outside the tank; at the same time, the water tank and the sliding sealing cover form a water seal, which effectively prevents dust from overflowing. Attached Figure Description

[0010] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0012] In the attached diagram, 1 is the hopper, 2 is the adapter, 3 is the first sealing ring, 4 is the second sealing ring, 5 is the water tank, 6 is the flange, 7 is the heat-resistant ceramic fiber blanket, and 8 is the sealing cover. Detailed Implementation

[0013] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0014] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0015] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” may be used herein to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific implementation of this utility model will be described in detail below with reference to specific embodiments: such as Figures 1-2 The present invention is achieved through the following technical solution: a dustproof structure for the furnace mouth of a dry quenching coke oven, comprising a hopper 1, characterized in that: the hopper 1 is fixedly connected to a connector 2 by bolts, the connector 2 is fixedly connected to the inner ring of a water tank 5 by bolts, the water tank 5 is fixedly connected to a flange 6 by bolts, a heat-resistant ceramic fiber blanket 7 is fixedly clamped between the water tank 5 and the flange 6, and a sealing cover 8 is slidably connected inside the water tank 5, a first sealing ring 3 is fixedly connected to the inner ring of the sealing cover 8, a second sealing ring 4 is fixedly connected to the outer ring of the sealing cover 8, the first sealing ring 3 is slidably connected inside the water tank 5, and the sealing cover 8 is located between the hopper 1 and the water tank 5.

[0018] The installation and use are divided into two parts: hopper 1, adapter 2, water tank 5, flange 6, and heat-resistant ceramic fiber blanket 7 are connected by bolts and installed as a whole, namely the lower hopper; the first sealing ring 3, the second sealing ring 4, and the sealing cover 8 are welded together to form a sliding sealing cover. During operation, the lower hopper moves to the position of the dry quenching furnace opening and then stops. The sliding sealing cover moves up and down, and the first sealing ring 3 is inserted into the water tank 5 filled with water to prevent dust from overflowing.

[0019] The lower hopper 1 is equipped with a sealing water tank 5 and a flange 6, both of which are independent structures and can be disassembled and replaced. The space between the water tank 5 and the flange 6 is filled with a refractory ceramic fiber blanket 8 to isolate the flange 6 from the high temperature of the furnace opening and to transfer the heat to the water tank 5. This reduces the risk of stress concentration caused by the cold water inside the tank and the high temperature outside the tank, which could lead to weld cracking.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A dustproof structure for the furnace opening of a dry quenching coke oven, comprising a hopper (1), characterized in that: The hopper (1) is fixedly connected to the adapter (2) by bolts. The adapter (2) is fixedly connected to the inner ring of the water tank (5) by bolts. The sealing cover (8) is slidably connected inside the water tank (5). The water tank (5) is fixedly connected to the flange (6) by bolts. The heat-resistant ceramic fiber blanket (7) is fixedly clamped between the water tank (5) and the flange (6).

2. The dustproof structure for the furnace mouth of a dry quenching coke charging plant according to claim 1, characterized in that: The inner ring of the sealing cover (8) is fixedly connected to the first sealing ring (3), and the outer ring of the sealing cover (8) is fixedly connected to the second sealing ring (4). The first sealing ring (3) is slidably connected in the water tank (5).

3. The dustproof structure for the furnace mouth of a dry quenching coke charging plant according to claim 1, characterized in that: The sealing cover (8) is located between the hopper (1) and the water tank (5).

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