Anti-pasting and anti-blocking grid section of sintering machine

Abstract

The invention relates to the technical field of sintering grate bars, and discloses a sintering machine anti-pasting and anti-blocking grate bar which comprises a grate bar body and a material receiving plate, a cavity is formed in the middle of the upper side wall of the grate bar body, multiple sets of ventilation holes are formed in the front side wall and the rear side wall of the middle of the grate bar body respectively, multiple sets of second grooves are formed in the upper side of the material receiving plate, and air guide holes are formed in the bottoms of the second grooves. Compared with the prior art, the grid section has the advantages that the cavity is formed in the middle of the upper side wall of the grid section body, air is guided into the cavity through the ventilation holes, air is conveyed to the upper side of a material receiving plate through the air guide holes, the ventilation effect of mineral aggregates is improved, combustion of the mineral aggregates is accelerated, and the situation that groove-shaped spaces between the grid sections are blocked due to insufficient combustion is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of sintering grates, in particular to sintering machine anti-sticking and blocking grates. Background Art

[0002] Sintering is a crucial process for steel companies. It involves mixing various powdered iron-containing raw materials with appropriate amounts of fuel and flux, adding an appropriate amount of water, and then pelletizing them. The materials undergo physical and chemical reactions on a sintering machine, producing ore powder particles that bond together into agglomerates. The sintering machine is a crucial piece of sintering equipment, and grates are a key component of the sintering machine trolley. Multiple grates are arranged on the trolley's rails, forming a trough-shaped space between the grates to accommodate and carry the sintered ore. The ore to be sintered is placed above the grates, while the fuel is placed below to provide heat for the sintering of the raw materials.

[0003] In the existing technology, due to the presence of a trough-shaped space between the grate bars, the sintered ore can easily enter the trough-shaped space during the distribution process. As the sintering machine runs, the material undergoes physical and chemical reactions, and the material will clog the gaps in the trough-shaped space, resulting in poor ventilation performance of the sintering trolley. When the sintering permeability is poor, the vertical combustion speed of sintering will decrease, the distribution of materials will easily deviate, the sintering will not be thorough, and a large number of unburned particles will be produced. The strength of the sintered ore will decrease, the return of ore will increase, the energy consumption will increase, and the clogging phenomenon will be serious. At present, the trough-shaped space is manually cleaned to prevent clogging and improve ventilation performance. However, the cleaning efficiency is low, a large amount of manual cleaning is required, and labor costs are increased. Summary of the Invention

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the present invention is that the gaps in the slotted space are blocked by materials, resulting in poor ventilation performance of the sintering trolley, a reduction in the vertical combustion speed, incomplete sintering, and the generation of a large number of unburned particles.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is: a sintering machine anti-sticking grate, including a grate body and a receiving plate, a cavity is provided in the middle of the upper side wall of the grate body, and a plurality of groups of ventilation holes are respectively provided on the front and rear side walls in the middle of the grate body, a plurality of groups of grooves 2 are arranged on the upper side of the receiving plate, and an air guide hole is provided at the bottom of the grooves 2.

[0008] As an improvement, the inner wall of the cavity is provided with multiple groups of vertical reinforcing ribs.

[0009] As an improvement, a groove 1 is provided in the middle of the upper side wall of the grate body.

[0010] As an improvement, some of the air guide holes are communicated with the cavity.

[0011] As an improvement, a plurality of groups of air guide grooves are provided on the lower side of the receiving plate, and the air guide grooves are staggered with the grooves.

[0012] As an improvement, the cross-section of the upper side wall of the receiving plate and the part located on both sides of the second groove is an arc surface or a trapezoidal structure.

[0013] 3. Beneficial Effects

[0014] The advantages of the present invention over the prior art are that a cavity is provided in the middle of the upper side wall of the grate body, and ventilation holes guide air into the cavity, and the air is sent to the upper side of the receiving plate through the air guide holes, thereby improving the ventilation effect of the mineral material, accelerating the combustion of the mineral material, and preventing the groove space between the grate bars from being blocked due to incomplete combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the anti-sticking and blocking grate bars of the sintering machine of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the grate bar body of the sintering machine anti-sticking grate bar of the present invention.

[0017] Figure 3 It is a schematic structural diagram of the receiving plate of the anti-sticking and blocking grate bars of the sintering machine of the present invention.

[0018] Figure 4 It is a schematic diagram of the side structure of the receiving plate of the sintering machine anti-sticking and blocking grate bars of the present invention.

[0019] As shown in the figure: 1. Grate body; 101. Cavity; 102. Ventilation hole; 103. Groove 1; 104. Reinforcement rib; 2. Receiving plate; 201. Groove 2; 202. Air guide hole; 203. Air guide slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below 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.

[0021] Example 1

[0022] As attached Figure 1 - Attachment Figure 3As shown, the anti-sticking and blocking grate of the sintering machine includes a grate body 1 and a receiving plate 2. A cavity 101 is provided in the middle of the upper side wall of the grate body 1, and a plurality of ventilation holes 102 are respectively provided on the front and rear side walls in the middle of the grate body 1. A plurality of grooves 201 are arranged on the upper side of the receiving plate 2, and air guide holes 202 are provided at the bottom of the grooves 201. Some of the air guide holes 202 are communicated with the cavity 101.

[0023] Through the above structure, the mineral material is distributed on the upper side of the receiving plate 2, which can reduce the contact area between the receiving surface of the receiving part and the mineral material. The multiple groups of grooves 201 increase the contact area between the mineral material and the air. When the sintering machine is burning, the air is sent to the cavity 101 through the multiple groups of ventilation holes 102 and discharged to the upper side of the receiving plate 2 through the air guide holes 202, thereby improving the ventilation effect of the mineral material, accelerating the combustion of the mineral material, and preventing the groove-shaped space between the grate bars from being blocked due to insufficient combustion. The specific structure is as follows:

[0024] Combined with attachment Figure 2 As shown, a groove 103 is provided in the middle of the upper side wall of the grate body 1.

[0025] Through the above structure, the blockage of the air guide hole 202 by the upper side wall of the grate body 1 is reduced through the groove 103, and the air supply speed into the cavity 101 is accelerated through the groove 103, thereby improving the ventilation effect of the air guide hole 202 and the ventilation effect of the mineral material.

[0026] Combined with attachment Figure 2 As shown, the inner wall of the cavity 101 is provided with multiple groups of vertical reinforcing ribs 104 .

[0027] With the above structure, the support of the grate body 1 is ensured by the reinforcing ribs 104 , thereby preventing the grate body 1 from being bent and damaged in the cavity 101 .

[0028] Example 2

[0029] Based on the first embodiment, please refer to the attached Figure 4 A plurality of air guide grooves 203 are provided on the lower side of the receiving plate 2, and the air guide grooves 203 are staggered with the second groove 201. The cross-section of the upper side wall of the receiving plate 2 and the part located on both sides of the second groove 201 is an arc surface or a trapezoidal structure.

[0030] Through the above structure of embodiment 2, the air supply speed into the cavity 101 is accelerated through the air guide groove 203, and the contact area between the mineral material and the upper side wall of the receiving plate 2 is reduced by setting the upper side wall of the receiving plate 2 to an arc surface or a narrower trapezoidal structure.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

[0033] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A sintering machine anti-sticking grate, comprising a grate body (1) and a receiving plate (2), characterized in that: A cavity (101) is provided in the middle of the upper side wall of the grate bar body (1), and a plurality of ventilation holes (102) are respectively provided on the front and rear side walls of the middle part of the grate bar body (1). A plurality of grooves (201) are arranged on the upper side of the receiving plate (2), and air guide holes (202) are provided at the bottom of the grooves (201).

2. The anti-sticking grate bar for sintering machine according to claim 1, characterized in that: The inner wall of the cavity (101) is provided with multiple groups of vertical reinforcing ribs (104).

3. The anti-sticking grate bar for sintering machine according to claim 1, characterized in that: A groove (103) is provided in the middle of the upper side wall of the grate bar body (1).

4. The anti-sticking grate bar for sintering machine according to claim 1, characterized in that: Some of the air guide holes (202) are in communication with the cavity (101).

5. The anti-sticking and blocking grate bar for sintering machine according to claim 1, characterized in that: A plurality of groups of air guide grooves (203) are provided on the lower side of the receiving plate (2), and the air guide grooves (203) are arranged in a staggered manner with the second groove (201).

6. The anti-sticking grate bar for sintering machine according to claim 1, characterized in that: The cross-section of the upper side wall of the receiving plate (2) and the part located on both sides of the second groove (201) is an arc surface or a trapezoidal structure.

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