Novel sintering flue structure

Abstract

The utility model relates to the technical field of flue structures, in particular to a novel sintering flue structure which comprises a flue and a bulk material funnel located at the bottom of the flue, the bulk material funnel comprises two material receiving plates which are arranged in a relatively inclined mode, and the upper end of each material receiving plate is fixed to the bottom of the flue. The lower ends of the two material receiving plates intersect so that the lower end of the bulk material funnel can form a closing-up structure. The number of the discharging channels is multiple, and the multiple discharging channels are evenly distributed on the two material receiving plates. The lower ends of two existing material receiving plates are arranged in a spaced mode and are changed into the lower ends of the two existing material receiving plates which intersect with each other, a discharging channel formed between the two existing material receiving plates in a spaced mode is closed, and a plurality of discharging channels are arranged on the two material receiving plates, so that discharging is not affected, air mixing between a flue and outside air when the flue passes through a bulk material funnel can be reduced, and the discharging efficiency is improved. The negative pressure in the hopper is reduced, the phenomenon of material storage caused by incomplete discharging of the material receiving plate is avoided, and the technical problem that discharging of the bulk material hopper is not thorough is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue structures, and particularly relates to a novel sintering flue structure. Background Art

[0002] A sintering flue refers to a pipeline system through which the flue gas generated by a sintering machine passes, and is used for discharging and treating the waste gas generated during the sintering process. The working principle of the sintering flue is mainly to ensure the standard and quality of the waste gas discharge of the sintering machine by removing heat, mass, and energy.

[0003] For a common sintering flue, reference can be made to a sintering machine main extraction flue waste heat recovery external composite dust collector module disclosed in the utility model patent document with the authorization announcement number CN203704678U, which includes a horizontally extending flue and four hopper-shaped funnels located on the lower side of the flue. The function of the four funnels is to scatter materials, also known as material scattering funnels. During the air extraction process, some incompletely burned broken materials and dust leak down from the material scattering funnels to complete the waste collection.

[0004] The existing sintering flue can be referred to Figure 1 As shown, there is a material scattering funnel 2 below the flue 1. The material scattering funnel 2 is usually composed of two inclined material receiving plates 3. The entire area A is communicated with the flue 1. Since the area here is large, when the material scattering funnel 2 discharges ash and materials, the inside of the flue 1 is communicated with the outside air through the material scattering funnel 2. The inside of the large flue is in a negative pressure state, which will affect the material discharging degree to a certain extent, resulting in incomplete discharging. A part of the waste materials may be stored inside the material scattering funnel; at the same time, the falling waste materials repeatedly impact the inclined material receiving plates, and the material receiving plates lack protection and are easily worn, reducing the service life. Content of the Utility Model

[0005] The utility model provides a novel sintering flue structure to solve the technical problem of incomplete material discharging of the material scattering funnel in the prior art.

[0006] To solve the above problems, the novel sintering flue structure provided by the utility model adopts the following technical solutions:

[0007] A novel sintering flue structure includes a flue and a material scattering funnel located at the bottom of the flue. The material scattering funnel includes two relatively inclined material receiving plates, and the upper end of each material receiving plate is fixed at the bottom of the flue;

[0008] The lower ends of the two material receiving plates intersect to form a closed-end structure at the lower end of the material scattering funnel;

[0009] There are multiple material discharging channels, and the multiple material discharging channels are evenly distributed on the two material receiving plates.

[0010] The beneficial effects of the novel sintering flue duct structure provided by the present utility model are as follows: The lower ends of the existing two material receiving plates, which were originally arranged at intervals, are modified to intersect at the lower ends. In this way, the feeding channel formed by the interval between the original two material receiving plates is closed, and a plurality of feeding channels are arranged on the two material receiving plates. This not only does not affect the feeding, but also can reduce the air leakage between the flue duct and the outside air through the bulk material funnel, reduce the negative pressure inside the funnel, reduce the pressure when discharging waste materials, and at the same time, the waste materials can be discharged from multiple feeding channels simultaneously, avoiding the phenomenon of material storage on the material receiving plate due to incomplete feeding, making the feeding more sufficient, reducing manual participation, and effectively solving the technical problem of incomplete feeding of the bulk material funnel in the prior art.

[0011] Further, define the length direction of each material receiving plate as the front-back direction, and the feeding channels are a plurality of strip-shaped holes extending in the front-back direction and opened on the material receiving plate, and the plurality of strip-shaped holes are evenly distributed at intervals in the left-right direction.

[0012] Further, buffer plates extending in the front-back direction are arranged at positions between adjacent two strip-shaped holes on the material receiving plate to reduce the impact of the directly falling waste materials on the bulk material funnel.

[0013] Further, buffer plates extending in the front-back direction are also arranged at the intersection of the lower ends of the two material receiving plates.

[0014] Further, reinforcing ribs are arranged on the surface of each buffer plate and circumferentially along the contour of the material receiving plate to improve the strength of the entire bulk material funnel.

[0015] Further, the reinforcing ribs are angle steels. Angle steels have the advantages of wide sources and easy collection.

[0016] Further, a refractory lining is also arranged on the surface of each buffer plate to improve the fire resistance of the bulk material funnel. This effectively improves the service life of the bulk material funnel and provides a favorable guarantee for production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By referring to the accompanying drawings and reading the following detailed description, the above and other purposes, features and advantages of the exemplary embodiments of the present utility model will become easy to understand. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0018] Figure 1 is a schematic diagram of the existing sintering flue duct structure;

[0019] Figure 2 is a schematic diagram of the novel sintering flue duct structure provided by the present utility model;

[0020] Figure 3 is Figure 2 a top view of the bulk material funnel in

[0021] Description of the reference numerals:

[0022] 1. Flue; 2. Bulk material funnel; 3. Material receiving plate; 4. Strip-shaped hole; 5. Buffer plate; 6. Angle steel. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0024] It should be noted that the concept of the present invention is to arrange the lower ends of the existing two material receiving plates 3 at intervals and modify them to intersect at the lower ends, so as to close the feeding channel formed by the interval between the original two material receiving plates 3, and arrange a plurality of feeding channels on the two material receiving plates 3. In this way, it not only does not affect the feeding, but also can reduce the air leakage between the flue through the bulk material funnel 2 and the outside air, reduce the negative pressure inside the funnel, reduce the pressure when discharging waste materials, and at the same time, the waste materials can be discharged from multiple feeding channels at the same time, avoiding the phenomenon of material storage on the material receiving plate 3 due to incomplete feeding, making the feeding more sufficient, reducing manual participation, so as to solve the technical problem of incomplete feeding of the bulk material funnel 2 in the prior art.

[0025] After introducing the basic principle of the present invention, the various non-limiting implementation manners of the present invention will be specifically introduced below. The number of any element in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.

[0026] Next, with reference to several representative implementation manners of the present invention, the principle and spirit of the present invention will be elaborated in detail.

[0027] Embodiment 1 of the novel sintering flue structure provided by the present invention:

[0028] As Figure 2 and Figure 3 shown, the novel sintering flue structure includes a flue 1 and a bulk material funnel 2 located at the bottom of the flue 1. The bulk material funnel 2 includes two relatively inclined material receiving plates 3, and the upper end of each material receiving plate 3 is fixed to the bottom of the flue 1.

[0029] On this basis, the modification of the material receiving plate 3 compared with the existing design is that the lower ends of the two material receiving plates 3 intersect to form a closed structure at the lower end of the bulk material funnel 2; at the same time, the original blanking channel formed by the interval between the two material receiving plates 3 is closed, and a plurality of blanking channels are arranged on the two material receiving plates 3, and the number of blanking channels is multiple, and the multiple blanking channels are evenly distributed on the two material receiving plates 3.

[0030] In the existing design, blanking is carried out through the interval between the two material receiving plates 3, and the interval between the two material receiving plates 3 is often designed to be relatively large. In this structure, the blanking task is shared by the blanking channels on the two material receiving plates 3. The size of each blanking channel can be designed to be smaller than the width of the original interval between the two material receiving plates 3, which not only does not affect blanking, but also can reduce the air leakage between the flue 1 and the outside air through the bulk material funnel 2, reduce the negative pressure inside the funnel, reduce the pressure when discharging waste materials, and at the same time, the waste materials can be discharged from multiple blanking channels at the same time, avoiding the phenomenon of material storage on the material receiving plate 3 due to incomplete blanking.

[0031] First, the blanking channel is introduced. The length direction of each material receiving plate 3 is defined as the front-back direction, and the blanking channel is a plurality of strip-shaped holes 4 extending in the front-back direction opened on the material receiving plate 3, and the plurality of strip-shaped holes 4 are evenly spaced in the left-right direction.

[0032] This structure also has a buffer design. Buffer plates 5 extending in the front-back direction are arranged at the positions on the material receiving plate 3 between two adjacent strip-shaped holes 4 to reduce the impact of the directly falling waste materials on the bulk material funnel 2. Similarly, buffer plates 5 extending in the front-back direction are also arranged at the intersection of the lower ends of the two material receiving plates 3.

[0033] At the same time, the whole structure also has a strengthening design. Reinforcing ribs are arranged on the surface of each buffer plate 5 and the circumferential contour of the material receiving plate 3 to improve the strength of the whole bulk material funnel 2.

[0034] Specifically, the reinforcing rib is an angle steel 6. The reason for choosing the angle steel 6 is that the angle steel 6 is widely sourced, not only easy to collect, but also low in cost, and will not excessively increase the cost of the whole flue structure.

[0035] Finally, the whole structure also has a fire-resistant design. A fire-resistant lining (not shown in the figure) is also arranged on the surface of each buffer plate 5 to improve the fire resistance of the bulk material funnel 2. This effectively improves the service life of the bulk material funnel 2 and provides a favorable guarantee for production.

[0036] Through the buffer design, strengthening design and fire-resistant design, the whole flue structure greatly improves the durability of the bulk material funnel 2 from three aspects, effectively improves the service life of the bulk material funnel 2, and provides a favorable guarantee for production.

[0037] The working principle of the novel sintering flue structure provided by the present utility model is as follows: During the air extraction process, some incompletely burned scraps and dust fall from the bulk material hopper 2, and are discharged through multiple strip-shaped holes 4. The buffer plate 5 effectively avoids the impact on the material receiving plate 3 caused by the direct fall of the waste materials. In this way, it not only does not affect the material discharge, but also can reduce the air leakage between the flue 1 and the outside air through the bulk material hopper 2, reducing the negative pressure inside the hopper, reducing the pressure when discharging the waste materials, and at the same time, the waste materials can be discharged from multiple material discharge channels simultaneously, avoiding the phenomenon of material storage on the material receiving plate 3 due to incomplete material discharge, and making the material discharge more sufficient.

[0038] Embodiment 2 of the novel sintering flue structure provided by the present utility model:

[0039] The main difference between it and Embodiment 1 lies in:

[0040] In Embodiment 1, the reinforcing rib is an angle steel. The angle steel has the advantages of wide sources and easy collection.

[0041] In this embodiment, the reinforcing rib may not be an angle steel, but a steel bar.

[0042] Embodiment 3 of the novel sintering flue structure provided by the present utility model:

[0043] The main difference between it and Embodiment 1 lies in:

[0044] In Embodiment 1, the material discharge channel is multiple strip-shaped holes extending forward and backward on the material receiving plate, and the multiple strip-shaped holes are evenly distributed at intervals in the left-right direction.

[0045] In this embodiment, the material discharge channel may also be a round hole.

[0046] According to the above description in this specification, those skilled in the art can also understand the following terms used, such as the terms indicating the orientation or position relationship, such as "upper", "lower", "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or position relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of the present utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in the specific orientation. Therefore, the above orientation or position relationship terms cannot be understood or interpreted as a limitation to the solution of the present utility model.

[0047] In addition, in the description of this specification, the meaning of "multiple" is at least two, such as two, three or more, etc., unless otherwise specifically defined.

Claims

1. A novel sintering flue structure, comprising a flue and a bulk material hopper located at the bottom of the flue, wherein the bulk material hopper comprises two relatively inclined receiving plates, and the upper end of each receiving plate is fixed to the bottom of the flue, and is characterized in that: The lower ends of the two receiving plates intersect to form a closing structure at the lower end of the bulk material hopper; There are multiple material unloading channels, and the multiple material unloading channels are evenly distributed on the two material receiving plates.

2. The novel sintering flue structure according to claim 1 is characterized in that: The length direction of each receiving plate is defined as the front-to-back direction, and the material discharge channel is a plurality of strip holes extending front-to-back and opened on the receiving plate, and the plurality of strip holes are evenly spaced along the left-to-right direction.

3. The novel sintering flue structure according to claim 2 is characterized in that: A buffer plate extending forward and backward is arranged between two adjacent strip holes on the receiving plate to reduce the impact of directly falling waste on the bulk material hopper.

4. The novel sintering flue structure according to claim 3 is characterized in that: A buffer plate extending forward and backward is also arranged at the intersection of the lower ends of the two receiving plates.

5. The novel sintering flue structure according to claim 4 is characterized in that: Reinforcing ribs are arranged on the surface of each buffer plate and the circumference of the contour of the receiving plate to improve the strength of the entire bulk material hopper.

6. The novel sintering flue structure according to claim 5 is characterized in that: The reinforcing ribs are angle steels.

7. The novel sintering flue structure according to claim 5 or 6, characterized in that: The surface of each buffer plate is also arranged with a refractory lining to improve the fire resistance of the bulk material hopper.

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