Feeding system for reducing dust and preventing steam escape and material throwing in ironmaking production

Abstract

The utility model discloses a feeding system for reducing dust and preventing steam escape and material throwing in ironmaking production, which comprises a first belt conveyor, a sintering machine mixing barrel which is a hollow cavity, is horizontally arranged and is provided with a feeding port and a discharging port, an anti-escape ring which is of an annular structure, and a second belt conveyor which is of an annular structure, the left side is welded with the sintering machine mixing barrel; the anti-escape cover is used for collecting dust generated during unloading of the first belt conveyor and low-temperature steam from raw materials; the collecting and conveying cover is used for receiving the dust and the steam from the anti-escape cover and conveying the dust and the steam to the dry dust remover; according to the utility model, scattered materials, volatilized steam and generated raised dust in the discharging process of the first belt conveyor at the inlet of the mixer can be all treated, so that the raised dust can be reduced, the steam can be prevented from escaping, and the materials can be prevented from being thrown.

Description

Technical Field

[0001] This utility model belongs to the technical field of sintering mixing machines, specifically relating to a feeding system for dust reduction and prevention of steam escape and material spillage in ironmaking production. Background Technology

[0002] Mixing is a crucial process in sinter production, and the main equipment involved is the mixer. The sintering raw materials, after being batched, are transported to the mixer via a belt conveyor. Inside the mixer's cylinder, the raw materials undergo water addition, mixing, and pelletizing before being supplied to the sintering machine with a mixture that meets the process requirements.

[0003] During the operation of the mixer, a certain proportion of quicklime is added to the sintering raw materials. The quicklime reacts exothermically with water during mixing, generating a large amount of steam. The belt conveyor also generates significant dust during unloading from the mixer drum, along with steam escape and material spillage. To prevent serious environmental pollution, a simple sealing cover is typically installed at the feed end of the mixer drum. A natural exhaust pipe is located at the top of the cover, through which steam and dust are directly discharged into the atmosphere. A bulk material discharge port is located at the bottom of the cover, through which spilled material falls directly to the ground during unloading. All of these factors contribute to significant environmental pollution.

[0004] With the continuous improvement of national environmental emission standards, existing technologies can no longer meet emission requirements, and corresponding measures must be taken. Although many dust collector manufacturers have begun to connect existing natural exhaust pipes to wet scrubbers to avoid direct emissions, problems such as pipe blockage and wastewater treatment have not been effectively solved, resulting in less than ideal operating performance. Utility Model Content

[0005] The purpose of this invention is to provide a feeding system for dust reduction and prevention of steam escape and material spillage in ironmaking production, so as to solve the problems of large amounts of dust, steam escape and material spillage that occur during the operation of the mixer.

[0006] This utility model adopts the following technical solution: a feeding system for dust reduction and prevention of steam escape and material spillage in ironmaking production, comprising:

[0007] The first belt conveyor was used to transport raw materials for ironmaking.

[0008] The sintering machine mixing cylinder is a hollow cavity, horizontally arranged, with an inlet and an outlet. Its outlet is located above the second belt conveyor, and is used to mix the raw materials from the first belt conveyor evenly inside it before conveying them to the second belt conveyor. The discharge end of the first belt conveyor is used to extend into the inlet of the sintering machine mixing cylinder for discharge.

[0009] The escape prevention ring is a ring structure, and its left side is welded to the mixing cylinder of the sintering machine;

[0010] The escape shield is a hollow shell with openings at both its left and right ends. The left opening is fitted into the escape ring. The escape shield is used to collect dust and low-temperature vapor from the raw materials generated during the unloading of the first belt conveyor.

[0011] The collecting and conveying hood is a hood with openings at the top, bottom, and left side. Its top is connected to the dry dust collector via a pipe, its bottom is located near the first belt conveyor, and its left opening is located near the right passage of the escape hood. It is used to receive dust and vapor from the escape hood and convey them to the dry dust collector.

[0012] Furthermore, the anti-escape ring is composed of a left ring plate, a middle ring cylinder, and a right ring plate that are coaxially connected as a single unit. The left ring plate is vertically positioned and its left side is welded to the discharge port of the sintering machine mixing cylinder. The axis of the middle ring cylinder coincides with the axis of the sintering machine mixing cylinder and its left side is integrally connected to the left ring plate. The left side of the right ring plate is integrally connected to the right end of the middle ring cylinder. The left ring plate, the middle ring cylinder, and the right ring plate cooperate to form an outward-facing receiving groove. The receiving groove is used for the left passage of the anti-escape hood to extend into, thereby ensuring the seal between the feed port of the sintering machine mixing cylinder and the anti-escape hood during the rotation of the sintering machine mixing cylinder, preventing dust and steam from escaping from the feed port of the sintering machine mixing cylinder and the anti-escape hood.

[0013] Furthermore, a material receiving port is provided at the bottom of the escape shield, and a bulk material tank is fixedly connected to the material receiving port. The bulk material tank is used to receive materials that fall freely inside the escape shield.

[0014] The beneficial effects of this utility model are:

[0015] This utility model can handle all the materials scattered, the vapors volatile, and the dust generated during the unloading process of the first belt conveyor at the mixer inlet. It can reduce dust, prevent vapor escape, and prevent material spillage.

[0016] This invention, by setting an anti-escape ring, can not only ensure the normal rotation of the mixing cylinder of the sintering machine, but also control the distance between the mixing cylinder and the anti-escape hood, thereby significantly reducing dust and steam escape. This ensures that all the volatilized steam and generated dust are collected inside the anti-escape hood and transported to the dry dust collector. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3This is a partial detail drawing of the anti-escape ring of this utility model;

[0020] Figure 4 This is a right view of the structure of the anti-escape ring of this utility model.

[0021] Among them, 10, first belt conveyor; 11, sintering machine mixing cylinder; 12, anti-escape ring; 13, anti-escape cover; 14, collection and conveying cover; 15, left ring plate; 16, middle ring cylinder; 17, right ring plate; 18, receiving tank; 19, bulk material tank. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for ease of description and simplification of this utility model only, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0024] This utility model provides a feeding system for dust reduction and prevention of steam escape and material spillage in ironmaking production, such as... Figure 1 and Figure 2 As shown, it includes: a first belt conveyor 10, a sintering machine mixing cylinder 11, an anti-escape ring 12, an anti-escape cover 13, and a collection and conveying cover 14.

[0025] The first belt conveyor 10 is used to transport raw materials for ironmaking.

[0026] The sintering machine mixing cylinder 11 is a hollow cavity. The sintering machine mixing cylinder 11 is horizontally arranged and has an inlet and an outlet. The outlet of the sintering machine mixing cylinder 11 is located above the second belt conveyor. The sintering machine mixing cylinder 11 is used to mix the raw materials from the first belt conveyor 10 evenly in it and then convey them to the second belt conveyor. The discharge end of the first belt conveyor 10 is used to extend into the inlet of the sintering machine mixing cylinder 11 for discharge.

[0027] A rotating shaft is installed inside the sintering machine mixing cylinder 11. The rotating shaft is coaxial with the sintering machine mixing cylinder 11 and is used to transport materials during the rotation of the sintering machine mixing cylinder 11. Thus, the materials that enter the sintering machine mixing cylinder 11 through the feed port are unloaded from the discharge port of the sintering machine mixing cylinder 11 under the drive of the rotating shaft and enter the second belt conveyor.

[0028] like Figure 3 and 4 As shown, the anti-escape ring 12 has a ring-shaped structure, and the left side of the anti-escape ring 12 is welded to the mixing cylinder 11 of the sintering machine.

[0029] The escape shield 13 is a hollow shell with openings at both the left and right ends. The left opening of the escape shield 13 is locked inside the escape ring 12. The escape shield 13 is used to collect dust and low-temperature steam from the raw materials generated when the first belt conveyor 10 is unloaded.

[0030] The collecting and conveying hood 14 is a hood with openings at the top, bottom, and left side. The top of the collecting and conveying hood 14 is connected to the dry dust collector via a pipeline. The bottom of the collecting and conveying hood 14 is located near the first belt conveyor 10. The left side opening of the collecting and conveying hood 14 is located near the right passage of the escape hood 13. The collecting and conveying hood 14 is used to receive dust and steam from the escape hood 13 and convey them to the dry dust collector.

[0031] The anti-escape ring 12 is composed of a left ring plate 15, a middle ring cylinder 16, and a right ring plate 17, which are coaxially arranged and integrally connected. The left ring plate 15 is vertically arranged and its left side is welded to the discharge port of the sintering machine mixing cylinder 11. The axis of the middle ring cylinder 16 coincides with the axis of the sintering machine mixing cylinder 11, and its left side is integrally connected to the left ring plate 15. The left side of the right ring plate 17 is integrally connected to the right end of the middle ring cylinder 16. The left ring plate 15, the middle ring cylinder 16, and the right ring plate 17 cooperate to form an outward-facing receiving groove 18. The receiving groove 18 is used for the left passage of the anti-escape cover 13 to extend into, thereby ensuring the seal between the feed port of the sintering machine mixing cylinder 11 and the anti-escape cover 13 during the rotation of the sintering machine mixing cylinder 11, and preventing dust and steam from escaping from the feed port of the sintering machine mixing cylinder 11 and the anti-escape cover 13.

[0032] The bottom of the escape shield 13 is provided with a material receiving port, and a bulk material tank 19 is fixedly connected to the material receiving port. The bulk material tank 19 is used to receive materials that fall freely inside the escape shield 13.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A feeding system for dust suppression and prevention of steam escape and material spillage in ironmaking production, characterized in that, include: The first belt conveyor (10) is used to transport the raw materials for ironmaking; The sintering machine mixing cylinder (11) is a hollow cavity, horizontally arranged, with an inlet and an outlet. Its outlet is located above the second belt conveyor and is used to mix the raw materials from the first belt conveyor (10) evenly inside and then convey them to the second belt conveyor. The discharge end of the first belt conveyor (10) is used to extend into the inlet of the sintering machine mixing cylinder (11) for discharge. The escape prevention ring (12) is a ring structure, and its left side is welded to the mixing cylinder (11) of the sintering machine; The escape shield (13) is a hollow shell with openings at its left and right ends, and its left opening is fitted into the escape ring (12); the escape shield (13) is used to collect dust and low-temperature steam from the raw materials generated when the first belt conveyor (10) is unloaded. The collecting conveying hood (14) is a hood with openings at the top, bottom, and left side. Its top is connected to the dry dust collector through a pipe, its bottom is located near the first belt conveyor (10), and its left side opening is located near the right passage of the escape hood (13). It is used to receive dust and steam from the escape hood (13) and transport them to the dry dust collector.

2. The feeding system for dust reduction and prevention of steam escape and material spillage in ironmaking production according to claim 1, characterized in that, The escape prevention ring (12) is composed of a left ring plate (15), a middle ring cylinder (16), and a right ring plate (17) that are coaxially arranged and integrally connected. The left ring plate (15) is vertically arranged and its left side is welded to the discharge port of the sintering machine mixing cylinder (11). The axis of the middle ring cylinder (16) coincides with the axis of the sintering machine mixing cylinder (11) and its left side is integrally connected to the left ring plate (15). The left side of the right ring plate (17) is integrally connected to the right end of the middle ring cylinder (16). The left ring plate (15), the middle ring cylinder (16) and the right ring plate (17) cooperate to form an outward-facing receiving groove (18). The receiving groove (18) is used to extend into the left passage of the escape hood (13), thereby ensuring the seal between the feed inlet of the sintering machine mixing cylinder (11) and the escape hood (13) during the rotation of the sintering machine mixing cylinder (11), and preventing dust and steam from escaping between the feed inlet of the sintering machine mixing cylinder (11) and the escape hood (13).

3. The feeding system for dust reduction and prevention of steam escape and material spillage in ironmaking production according to claim 1, characterized in that, The bottom of the escape shield (13) is provided with a material receiving port, and a bulk material tank (19) is fixedly connected to the material receiving port. The bulk material tank (19) is used to receive materials that fall freely inside the escape shield (13).

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