Metallurgical high-temperature breast board external flash transformation type sintering pallet

Abstract

The utility model discloses a metallurgical high-temperature breast board external flash transformation type sintering trolley which comprises a sintering trolley set, the sintering trolley set moves forwards by means of a transmission device of a machine head part, and the transmission device is composed of a motor, a speed reducer and a transmission large gear. A material distribution bin and a material distributor are arranged on the upper horizontal section in the horizontal movement of the sintering trolley set, mixed materials sintered by the material distribution bin and the material distributor are received on the upper horizontal section in the horizontal movement of the sintering trolley set, and the sintering trolley set forms belt type sintering machine equipment through a trolley body comprising a plurality of sets of final assemblies. The sintering machine equipment is installed on a track to move and moves on the track, an outer flashing breast board is installed on the upper portion of the trolley body, ventilation grate bars which are horizontally and fully laid are sequentially arranged at the bottom of the trolley body, and an air bellow and a smoke conveying pipeline connected with the air bellow are installed below the sintering trolley body.

Description

Technical Field

[0001] The utility model relates to the technical field of steel metallurgy, in particular to a metallurgical high-temperature guardrail external flashing modified sintering trolley. Background Art

[0002] Currently, in steel and metallurgical production processes both domestically and internationally, the belt-type sintering machine used to produce clinker ore for ironmaking primarily consists of a sintering belt, consisting of a series of sintering trolleys mounted on a steel structure and continuously moving on the track. Sintering machines are primarily used in large and medium-sized sintering plants to sinter fine iron ore, providing iron-containing clinker for ironmaking. The sintering machine is the core equipment in the draft sintering process, agglomerating fine ore concentrates and rich ore of varying composition and particle size into agglomerates while partially removing harmful impurities such as sulfur and phosphorus from the ore. Sintering machines are available in various lengths and widths, depending on the sintering area. A larger sintering area increases output. A sintering machine consists of a rotating chain running between the head and tail wheels. The sintering machine is composed of multiple trolleys, the main operating components of the sintering machine. The trolley body and the internal profile of the sideboards of each trolley generally adopt a concave structure. Each individual trolley of the sintering machine mainly consists of the trolley body, sideboards, grates, bolts, nuts, axles, wheels, seals, and other devices. The upper and lower contact surfaces of the trolley body and sideboards are connected with bolts and nuts. The trolley body and sideboards are filled with sintering mixture. During the horizontal movement of the sintering machine, the upper horizontal section receives the sintering mixture from the distribution bin and distributor. After preheating, ignition, sintering, cooling, and turning, the mixture returns to the head wheel, completing the transmission cycle to achieve the purpose of sintering the sintering material. The sintering machine is the most important sintering equipment in the domestic and international steel industry, and its output accounts for 99% of the world's sintered ore.

[0003] Sintering machine specifications are based on the nominal effective sintering area (unit: m 2 ), effective area of sintering machine (unit: m 2 ) is the product of the width (inner) dimension of the trolley (exhaust surface) (unit: m) and the effective length of the sintering machine (unit: m). The utilization coefficient of the sintering machine (t / m 2 .h) = daily sintering output (t) / production time (h) / effective sintering area (m 2 ).

[0004] With the increase in ironmaking capacity and the rise in the clinker ratio of sintering furnaces, ironmaking has placed new demands on increasing sintering ore production capacity. Therefore, metallurgical enterprises urgently need to find effective and practical methods to utilize existing sintering equipment in sintering plants and transform them to maximize their production capacity, achieving the goals of low investment, short construction period, and rapid results.

[0005] At present, sintering machines at home and abroad usually adopt the method of replacing or modifying the sintering trolley body of more than 100 trolleys, railings and grates, bolts, nuts, axles, wheels, seals and other devices according to their equipment specifications. Although this solution can increase sintering capacity, it has high investment costs, long construction period, affects the production output of sintered clinker, and cannot meet the needs of the increasingly fierce competition in the steel market. Utility Model Content

[0006] The purpose of the utility model is to provide a metallurgical high-temperature sintering trolley with external flashing modification to solve the problems raised in the above background technology.

[0007] The purpose of the utility model is achieved through the following technical solutions: a metallurgical high-temperature railing flashing modified sintering trolley, including a sintering trolley group, the sintering trolley group moves forward with the help of a transmission device in the head part, the transmission device is composed of an electric motor, a reducer and a transmission gear, the sintering trolley group is provided with a distribution bin and a distributor in the upper horizontal section during the horizontal movement, the sintering trolley group receives the sintering mixed material from the distribution bin and the distributor in the upper horizontal section during the horizontal movement, the sintering trolley group is formed by a belt-type sintering machine device including a plurality of sets of assembled trolley bodies, the sintering machine device is installed on a track for movement, and the sintering machine device moves on the track;

[0008] An outward-flapping guardrail is installed above the trolley body, and horizontally fully-installed ventilation grates are sequentially arranged on the bottom of the trolley body. A bellows and a smoke conveying pipe connected to the bellows are installed under the sintering trolley body.

[0009] An ignition furnace is arranged along the running direction of the trolley body.

[0010] Furthermore, the trolley body and the outward-facing fence are connected in a detachable manner;

[0011] Transmission axles and wheels connected to the transmission axles are provided on both sides of the trolley body. Seals are provided on both sides of the trolley body, and the seals are spring-type seals.

[0012] Furthermore, the upper and lower contact surfaces between the outward-facing guardrail and the trolley body respectively have convex and concave sealing structures, and the upper and lower contact surfaces between the outward-facing guardrail and the trolley body are connected and fixed to each other by bolts / nuts.

[0013] Furthermore, the outward-facing guardrail is of an inverted eight type, and two or four guardrails on the upper part of each group of trolley bodies are used as the outward-facing guardrails, and the outward-facing guardrails are of an expanded and modified outward-facing guardrail structure.

[0014] Furthermore, the flashback width on each side of the flashback is ≥150mm, and the height of the flashback is ≥50mm higher than the height of the mixed material layer. The inner shape of the flashback is an inverted "eight" shape, and its inner wall is provided with a plurality of serrated shapes.

[0015] Furthermore, the trolley body and the outer flashing guardrail are made of heat-resistant QT material.

[0016] Furthermore, the trolley structure composed of the lower part of the trolley body and the outer flashing guardrail of the upper part has a concave structure, and the concave structure is filled with sintered mixed materials.

[0017] Furthermore, a main induced draft fan is provided between the sintering process fume conveying pipeline and the dust removal chimney connected to the outside.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The utility model is a transformation plan for sintering machine transformation in a sintering plant, which is simple, practical, requires little investment, has significant capacity expansion, is quick to take effect, and has a short construction period.

[0020] The utility model can increase the sintering capacity by ≥7%-10% under the existing sintering machine capacity conditions, and generate a profit of ≥2,000 yuan / m2 per month by increasing production and reducing consumption. 2 The investment recovery period is about ≥4 months, and the construction period is as short as about 2-3 days, which can meet the needs of replacing the sintering trolley railing.

[0021] The utility model realizes the purpose of expanding the sintering area and eliminating the sintering edge effect, has good economic and social benefits, and therefore has a very good promotion effect in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an overall schematic diagram of the sintering trolley equipment of the utility model;

[0023] Figure 2 This utility model Figure 1 A partial enlarged schematic diagram;

[0024] Figure 3 This is a schematic diagram of the connection between the trolley body and the outward flashing railing of the utility model;

[0025] Figure 4 This is a schematic plan view of the trolley body of the utility model;

[0026] Figure 5 This is a schematic top view of the trolley body of the utility model;

[0027] Figure 6 It is a plan view of the sintering trolley assembly, the bellows, and the smoke conveying pipeline of the utility model. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0030] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] like Figure 1-6 As shown, a metallurgical high-temperature railing flash-out modified sintering trolley includes a sintering trolley assembly 1. The sintering trolley assembly 1 moves forward with the help of a transmission device 9 in the head portion. The transmission device 9 is composed of an electric motor, a reducer, and a transmission gear. During the horizontal movement of the sintering trolley assembly 1, a distribution bin 10 and a distributor 11 are provided in the upper horizontal section. During the horizontal movement of the sintering trolley assembly 1, the distribution bin 10 and the distributor 11 are received in the upper horizontal section for sintering mixed materials. The sintering trolley assembly 1 is composed of a plurality of assembled trolley bodies 2 to form a belt-type sintering machine equipment. The sintering machine equipment is installed on a track 8 for movement. The sintering machine equipment moves on the track 8.

[0032] An outward-flapping guardrail 3 is installed above the trolley body 2, and horizontally fully-installed ventilation grates 4 are sequentially arranged on the trolley body 2. A wind box 12 and a smoke conveying pipe connected to the wind box 12 are installed under the sintering trolley body 2;

[0033] An ignition furnace 13 is provided along the running direction of the trolley body 2 .

[0034] In order to facilitate disassembly and replacement in use, the trolley body 2 and the outward dash panel 3 are connected in a detachable manner;

[0035] Transmission axles 5 and wheels 6 connected to the transmission axles 5 are provided on both sides of the trolley body 2 , and seals 7 are provided on both sides of the trolley body 2 , and the seals 7 are spring-type seals.

[0036] In order to ensure the sealing installation requirements of the sintered contact parts during use, the upper and lower contact surfaces of the outward flash guardrail 3 and the trolley body 2 have convex and concave sealing structures respectively, and the upper and lower contact surfaces of the outward flash guardrail 3 and the trolley body 2 are connected and fixed to each other with bolts / nuts.

[0037] In order to facilitate use, in order to achieve the purpose of expanding the sintering area and eliminating the sintering edge effect, the outward flashing guardrail 3 is an inverted eight type, and the two or four guardrails on the upper part of each group of trolley bodies 2 are the outward flashing guardrails 3, and the outward flashing guardrails 3 are an expanded and modified outward flashing guardrail structure.

[0038] The flashback width of each side of the flashback guardrail 3 is ≥150mm, and the height of the flashback guardrail 3 is ≥50mm higher than the height of the mixed material layer. The inner shape of the flashback guardrail 3 is an inverted "eight" shape, and the inner wall may be provided with a plurality of serrated shapes.

[0039] The utility model has a sealing device (water pipe seal or spring seal) between the trolley body 2 and the bellows 12 slide, which plays an important role in reducing air leakage and saving power consumption.

[0040] The trolley body 2 and the outer flashing guardrail 3 are made of heat-resistant QT material.

[0041] In order to facilitate the contact surface conditions for maximizing the recovery of waste heat from the hot sintered ore after the cooling air is exchanged with the hot sintered ore by the main exhaust fan during use, a main induced draft fan is provided between the flue gas conveying duct and the chimney connected to the outside world.

[0042] The utility model has good economic and social benefits in eliminating the sintering edge effect, improving the sintering capacity, reducing the sintering energy consumption, etc., and has a very good promotion effect in the market.

[0043] The utility model aims to increase the sintering area (≥12%) by modifying the sintering machine trolley guardrail, and the investment is extremely low, the construction period is short, the implementation is easy, the production capacity is increased, and the energy consumption is significantly reduced. There is no precedent at home and abroad. The utility model includes a trolley body, an external flashing guardrail and grates, bolts, nuts, axles, wheels, seals and other devices. The external flashing guardrail is installed above the trolley body. The trolley body and guardrail are made of heat-resistant QT material. The body and guardrail are connected by bolts and nuts. The body and guardrail are filled with sintering mixture. A series of multiple sets of assembly trolleys constitute a sintering belt sintering machine equipment. The sintering machine equipment is installed on a track for movement. The sintering machine equipment is driven by an electric device and moves on the track. After the mixture is placed on the trolley grate, it is ignited and sintered by the ignition furnace, exhausted by the main exhaust fan, then cooled, tilted and unloaded, and circulated.

[0044] This utility model features a low-cost, quick-acting, and effective modification of a slatted sintering trolley, contributing to reduced energy consumption and increased production capacity in sintering. It not only ensures the ventilation sintering of the iron-containing mixture within the trolley but also eliminates the edge effect of the sintering process. The modified trolley's cross-sectional shape, which is wider at the top (increased contact area with air) and narrower at the bottom, facilitates sintering ventilation and heat exchange, and improves sintering quality (drum strength of the sintered finished ore). The main exhaust fan exchanges heat between the cooling air and the hot sintered ore, creating a contact surface that maximizes the recovery of waste heat from the hot ore, also facilitating the sintering of thick layers.

[0045] The utility model is a metallurgical high-temperature transformation into a guardrail external flash type sintering trolley, which is used to increase the total plane cross-sectional area of the inner type of the guardrail on the sintering trolley by ≥12% (volume), the cross-sectional area is increased by ≥14% (of which the height cross-sectional area is increased by ≥7%), and the guardrail height is increased by ≥0-50mm, thereby achieving the goal of increasing the sintering output by ≥10%, and completely replacing the new solution of the overall belt sintering trolley transformation process of the steel metallurgical sintering plant.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A metallurgical high-temperature railing flash-out modified sintering trolley, comprising a sintering trolley group (1), wherein the sintering trolley group (1) moves forward with the aid of a transmission device (9) of a head portion, the transmission device (9) being composed of an electric motor, a reducer and a transmission gear. During the horizontal movement of the sintering trolley group (1), a material distribution bin (10) and a material distributor (11) are provided on the upper horizontal section. During the horizontal movement of the sintering trolley group (1), the material distribution bin (10) and the material distributor (11) are received in the upper horizontal section for sintering mixed materials. The invention is characterized in that: The sintering trolley assembly (1) is formed of a plurality of trolley bodies (2) that are assembled to form a belt-type sintering machine device, and the sintering machine device is installed on a track (8) for movement, and the sintering machine device moves on the track (8); An outward-flapping guardrail (3) is installed above the trolley body (2), horizontally fully-installed ventilation grates (4) are sequentially arranged on the trolley body (2), and a bellows (12) and a smoke conveying pipe connected to the bellows (12) are installed below the trolley body (2); An ignition furnace (13) is provided along the running direction of the trolley body (2).

2. The metallurgical high-temperature sintering trolley with external flashover modification according to claim 1 is characterized in that: The trolley body (2) and the outward-facing fence (3) are connected in a detachable manner; Transmission axles (5) and wheels (6) connected to the transmission axles (5) are provided on both sides of the trolley body (2). Seals (7) are provided on both sides of the trolley body (2), and the seals (7) are spring-type seals.

3. The metallurgical high-temperature sintering trolley with external flashover modification according to claim 2 is characterized in that: The upper and lower contact surfaces of the outward-flapping guardrail (3) and the trolley body (2) respectively have convex and concave sealing structures, and the upper and lower contact surfaces of the outward-flapping guardrail (3) and the trolley body (2) are connected and fixed to each other by bolts / nuts.

4. The metallurgical high-temperature sintering trolley with external flashover modification according to claim 3 is characterized in that: The outward-facing guardrail (3) is an inverted eight-shaped guardrail, and two or four guardrails on the upper part of each group of trolley bodies (2) are the outward-facing guardrail (3). The outward-facing guardrail (3) is an expanded and modified outward-facing guardrail structure.

5. The metallurgical high-temperature sintering trolley with external flashover modification according to claim 4 is characterized in that: The flash width on each side of the flash guardrail (3) is ≥150 mm, the height of the flash guardrail (3) is ≥50 mm higher than the height of the mixed material layer, and the inner shape of the flash guardrail (3) can be an inverted "eight" shape, and its inner wall is provided with a plurality of serrated shapes.

6. The metallurgical high-temperature sintering trolley with external flashover modification according to claim 5 is characterized in that: The trolley body (2) and the outer flashing guardrail (3) are made of heat-resistant QT material.

7. The metallurgical high-temperature sintering trolley with external flashover modification according to claim 6 is characterized in that: The trolley structure composed of the lower trolley body of the trolley body (2) and the outer flashing guardrail (3) of the upper part is a concave structure, and the concave structure contains sintered mixed materials.

8. The metallurgical high-temperature sintering trolley with external flashover modification according to claim 7 is characterized in that: A main induced draft fan is provided between the flue gas conveying pipeline and the dust collector chimney connected to the outside world.

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