Sintering pallet capable of restraining fringe effect

Abstract

The utility model relates to the technical field of metallurgical sintering, in particular to a sintering pallet capable of restraining the fringe effect, an inclined plane I is arranged on the inner side of each upper fence plate, an inclined plane II is arranged on the upper portion of the inner side of each lower fence plate, and a plurality of semicircular protrusions I and a plurality of semicircular grooves I which are sequentially and alternately connected to form a wave shape are arranged on the inclined planes I; a plurality of semicircular protrusions II and a plurality of semicircular grooves II which are sequentially and alternately connected to form a wave shape are formed in the inclined face II, a blocking structure is formed in a gap formed by sintering materials and the breast board, and the effect of blocking air from flowing through in the gap is achieved; the groove and the boss are connected to form a seam allowance or the conical hole and the conical column are connected to form a closed curve at the joint of the parts, so that air leakage at the joint of the parts is avoided, the edge effect is inhibited, and the productivity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy sintering, in particular to a sintering trolley capable of curbing edge effects. Background Art

[0002] During the metal sintering process, various iron-containing materials, flux, and fuel are mixed according to predetermined proportions. After mixing, wetting, and pelletizing, they are evenly distributed onto the sintering trolley for ignition and draft sintering. Because the sintering material is granular, it shrinks during the sintering process. This shrinkage creates a shrinkage gap between the sintering plate and the sintering material. This shrinkage gap allows a large amount of air to enter through the shrinkage gap, reducing the amount of air entering the sintering material layer and accelerating the sintering rate at the edges of the sintering plate. By the time the trolley reaches the rear of the sintering machine, sintering at the edges of the sintering plate is prematurely completed, often leaving a layer of sintering material below the center of the trolley that is not fully sintered. This phenomenon, known as the edge effect, is a major factor contributing to reduced sintering yield, quality, and increased costs. Furthermore, the shrinkage gap between the sintering plate and the material causes air leakage in the sintering machine, increasing energy consumption. With the increasing awareness of energy conservation and consumption reduction in the steel industry, mitigating the edge effect of sintering trolleys has become increasingly important.

[0003] The sintering trolley in the existing technology mainly includes a trolley body, end grates, an upper guardrail, a lower guardrail and a middle grate. After assembly, a sintering cavity is formed. The sintering cavity is filled with sintering material. After the air is exhausted by the fan, it enters from above the material and starts to sinter layer by layer from top to bottom. The material shrinks during the sintering process, and a gap appears between the guardrail and the sintered material. The wind resistance at the gap is reduced, causing air to flow into the gap preferentially, resulting in edge effect and air leakage. At the same time, the upper guardrail is generally three pieces, and there is a gap of about 2mm between every two upper guardrails, resulting in air leakage. At the same time, the inner side of the upper guardrail is designed to be flat, and the inner side of the lower guardrail is designed to be a straight surface; the briquetting pin is cylindrical and a circular hole gap is used between the briquetting pin. There is a 2mm gap, resulting in air leakage. The above reasons cause large air leakage at the edge of the trolley guardrail, resulting in serious edge effect and increased energy consumption. Utility Model Content

[0004] The purpose of the utility model is to provide a sintering trolley capable of curbing edge effects, so as to solve the technical problem in the prior art that air leakage occurs due to gaps in the sintering trolley, resulting in edge effects and increased energy consumption.

[0005] In order to solve the above technical problems, the utility model provides a sintering trolley for curbing edge effects, which includes a sintering trolley, the sintering trolley includes a trolley body, a grate, an upper grate assembly, a lower grate and a briquetting pin, two lower grate plates are provided, the two lower grate plates are symmetrical, the two lower grate plates are fixedly connected to the top surface of the trolley body, the two lower grate plates are respectively connected to the left and right sides of the trolley body, two upper grate assemblies are provided, the two upper grate assemblies are symmetrical, the two upper grate assemblies are respectively fixedly connected to the top surfaces of the two lower grate plates, a plurality of grate plates are provided, a plurality of grate plates are connected to the top surface of the trolley body, and a plurality of grate plates are connected to the trolley body and are provided on the two lower grate plates. In between, the pressure block pin is fixedly connected to the lower railing, each lower railing is connected with a plurality of pressure block pins, and the plurality of pressure block pins are pressed on the top surface of the grating, and each upper railing assembly includes two upper railings, the two upper railings are linearly arranged along the length direction of the lower railing, the two upper railing side walls are fixedly connected, and an inclined surface I is provided on the inner side of the upper railing, and the inclined surfaces I of the upper railings of the two upper railing assemblies are opposite to each other, and the upper ends of the inclined surfaces I of the upper railings of the two upper railing assemblies are far away from each other, and an inclined surface II is provided on the upper inner side of each lower railing, and a vertical surface is provided on the lower inner side of each lower railing, and the inclined surfaces II of the two lower railings have the same inclination as the inclined surface I at the top end of the lower railing.

[0006] Furthermore, the inclined surface I is provided with a plurality of semicircular protrusions I and a plurality of semicircular grooves I, the radius of the semicircular protrusion I is the same as the radius of the semicircular groove I, and along the height direction of the inclined surface I, the plurality of semicircular protrusions I and the plurality of semicircular grooves I are alternately connected in sequence to form a wave shape; the inclined surface II is provided with a plurality of semicircular protrusions II and a plurality of semicircular grooves II, the radius of the semicircular protrusion II is the same as the radius of the semicircular groove II, and along the height direction of the inclined surface II, the plurality of semicircular protrusions II and the plurality of semicircular grooves II are alternately connected in sequence to form a wave shape.

[0007] Furthermore, each lower railing is provided with a vertical surface at the lower inner portion, with a plurality of conical holes on the vertical surface, and the plurality of conical holes are linearly evenly distributed along the length direction of the lower railing, and the inner diameter of the conical hole close to the inner side of the lower railing is larger than the inner diameter close to the outer side of the lower railing, and the pressure block pin includes a pressure block part, a conical column and a stud part, the conical column is fixedly connected to the side wall of the pressure block part, the stud part is fixedly connected to one end of the sub-conical column away from the pressure block part, the outer diameter of the connecting end of the conical column and the pressure block part is larger than the outer diameter of the connecting end of the conical column and the stud part, the conical column is inserted in the conical hole, the pressure block part is arranged on the inner side of the lower railing, the stud part is arranged on the outer side of the lower railing, the pressure block part is crimped on the top surface of the grating, and the stud part is connected with a fastener.

[0008] Furthermore, a through hole I is provided on the side wall where the two upper railings of each group of upper railing assemblies are connected to each other. The through holes I of the two upper railings are connected by fasteners. There are multiple through holes I along the height direction of the upper railings. Fasteners are connected to the multiple through holes I. A stop groove I and a stop boss I are provided on the side wall where the two upper railings of each group of upper railing assemblies are connected to each other. The stop grooves I and the stop boss I of the two upper railings are staggered with each other. The stop boss I of one upper railing is connected to the stop groove I of the other upper railing.

[0009] Furthermore, each upper railing is provided with a boss II at the bottom, boss II is provided on the inner side of the upper railing, a windshield is provided on the inner side of boss II, the height of the windshield protruding from the inclined surface I is greater than the height of the semicircular boss I protruding from the inclined surface I, and the windshield and inclined surface I are smoothly transitioned, and each lower railing is provided with a stop groove II on the top surface, stop groove II is provided on the inner side of the lower railing, and boss II is connected to the stop groove II; each upper railing is provided with a through hole II on the bottom wall, and each lower railing is provided with a through hole III on the top wall, through hole II and through hole III are connected by fasteners, multiple through holes II are provided along the length direction of the upper railing, and multiple through holes III are provided along the length direction of the lower railing, and the sum of the multiple through holes II of each group of upper railing components is the same as the number of the multiple through holes III of the lower railing and they are connected one by one by fasteners.

[0010] Furthermore, each lower railing is provided with a stop groove III on the bottom surface, and the stop groove III is provided on the outside of the lower railing. The left and right sides of the top surface of the trolley body are provided with bosses I, and the stop groove III is connected to the boss I. Each lower railing is provided with a plurality of through holes IV on the bottom wall, and the plurality of through holes IV are linearly evenly distributed along the length direction of the lower railing. The plurality of through holes IV are connected to the trolley body through fasteners, and the trolley body is provided with holes for bolts to pass through.

[0011] Furthermore, the grate bars include end grate bars and middle grate bars, the width of the end grate bars is a, the width of the middle grate bars is b, a=2b, there are two groups of end grate bars, each group of end grate bars has two end grate bars linearly evenly distributed, there are multiple middle grate bars, multiple middle grate bars are linearly evenly distributed between the two groups of end grate bars, the two groups of end grate bars are respectively arranged on the inner sides of the two lower railings, and the pressing block part is crimped on the end grate bars.

[0012] Preferably, the spacing between the multiple semicircular protrusions I is d, and the size of d is 20mm-40mm; the spacing between the high point of the semicircular protrusion I and the low point of the semicircular groove I is h, and the size of h is 5mm-15mm.

[0013] Preferably, the angle between the inclined surface I and the vertical surface is ≤7°; the angle between the inclined surface II and the vertical surface is ≤7°.

[0014] Preferably, the taper of the tapered hole is 1:10; the taper of the tapered column is 1:10.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model provides an upper guardrail with an inclined surface I, and a plurality of semicircular protrusions I and a plurality of semicircular grooves I are provided on the inclined surface I, which are alternately connected in sequence to form a wave shape; a lower guardrail with an inclined surface II, and a plurality of semicircular protrusions II and a plurality of semicircular grooves II are provided on the inclined surface II, which are alternately connected in sequence to form a wave shape, and a wind shield is provided at the bottom of the upper guardrail. The wave shape formed by the plurality of semicircular protrusions I and the plurality of semicircular grooves I, the wave shape formed by the plurality of semicircular protrusions II and the plurality of semicircular grooves II, and the wind shield jointly block air from the gap formed between the upper and lower guardrails and the sintered material, thereby curbing the edge effect;

[0017] 2. In the present invention, the two upper railings are connected to each other through the stop groove I and the stop boss I; the upper railing and the lower railing are connected to each other through the boss II and the stop groove II; the lower railing and the trolley body are connected to each other through the stop groove III and the boss I; thereby preventing air from flowing out of the above-mentioned joint surfaces, further curbing the edge effect;

[0018] 3. The pin of the middle pressure block of the utility model is connected to the lower guardrail through a tapered column and a tapered hole. The tapered hole and the tapered surface of the tapered column cooperate to form a closed curve at this point, thereby preventing air leakage at this point.

[0019] 4. The width of the end grates of the present invention is twice the width of the middle grates and each group of end grates includes two end grates, thereby reducing the number of gaps between the grates and avoiding air leakage through the gaps between the grates.

[0020] 5. The utility model forms a blocking structure at the gap between the sintered material and the guardrail, which has the effect of blocking the flow of air in the gap. The connection between the components adopts grooves and bosses to form a stop or tapered holes and tapered columns to form a closed curve, avoiding air leakage at the connection between the components, thereby suppressing the edge effect and improving production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 For this utility model Figure 1 A-direction view;

[0023] Figure 3 For this utility model Figure 2 A magnified view of the Figure I ;

[0024] Figure 4 This is a schematic cross-sectional structural diagram of the upper railing of the utility model;

[0025] Figure 5 FIG is a schematic diagram of the partial structure of the connection between the two upper railings of each upper railing assembly of the present invention;

[0026] Figure 6 This is a schematic structural diagram of the lower railing of the utility model;

[0027] Figure 7 For this utility model Figure 6 BB cross-sectional structure diagram;

[0028] Figure 8 This is a schematic diagram of the local structure of the connection between the upper and lower guardrails of the present invention;

[0029] Figure 9 This is a schematic diagram of the local structure of the connection between the pressing block pin and the tapered hole of the utility model.

[0030] In the figure: 1. sintering trolley, 11. trolley body, 1101. boss I; 12. end grates, 13. middle grates; 14. upper railing assembly; 15. upper railing; 1501. stop groove I; 1502. stop boss I; 1503. boss II; 1504. wind shield; 1505. inclined surface I; 1506. semicircular protrusion I; 1507. semicircular groove I; 1508. through hole I; 150 9. Through hole II; 16. Lower railing; 1601. Stop groove II; 1602. Stop groove III; 1603. Tapered hole; 1604. Inclined surface II; 1605. Semicircular protrusion II; 1606. Semicircular groove II; 1607. Through hole III; 1608. Through hole IV; 17. Block pin; 1701. Block portion; 1702. Conical column; 1703. Stud portion; 18. Sintering cavity; 2. Sintering cavity. DETAILED DESCRIPTION

[0031] like Figures 1-9As shown, the utility model is a sintering trolley for curbing edge effects, which includes a sintering trolley 1. The sintering trolley 1 includes a trolley body 11, a grate, an upper grate assembly 14, a lower grate 16 and a briquetting pin 17. There are two lower grate plates 16, which are symmetrical. The two lower grate plates 16 are fixedly connected to the top surface of the trolley body 11, and the two lower grate plates 16 are respectively connected to the left and right sides of the trolley body 11. There are two upper grate assemblies 14, which are symmetrical. The two upper grate assemblies 14 are respectively fixedly connected to the top surfaces of the two lower grate plates 16. There are multiple grate bars, and multiple grate bars are connected to the top surface of the trolley body 11. The trolley body 11 is arranged between the two lower fences 16, and the briquetting pin 17 is fixedly connected to the lower fence 16. Each lower fence 16 is connected with a plurality of briquetting pins 17, and the plurality of briquetting pins 17 are pressed on the top surface of the grating. Each upper fence assembly 14 includes two upper fences 15, and the two upper fences 15 are linearly arranged along the length direction of the lower fence 16. The side walls of the two upper fences 15 are fixedly connected, and an inclined surface Ⅰ1505 is provided on the inner side of the upper fence 15. The angle between the inclined surface Ⅰ1505 and the vertical plane is ≤7°. The inclined surfaces Ⅰ1505 of the upper fences 15 of the two upper fence assemblies 14 are opposite, and the inclined surfaces Ⅰ11 of the upper fences 15 of the two upper fence assemblies 14 are opposite. The upper ends of 505 are far away from each other, and each lower railing 16 is provided with an inclined surface II 1604 on the inner upper part, and each lower railing 16 is provided with a vertical surface on the inner lower part. The inclined surfaces II 1604 of the two lower railings 16 are respectively the same as the inclined surface I 1505 at the top of the lower railing 16, and the angle between the inclined surface II 1604 and the vertical surface is ≤ 7°; the inclined surface I 1505 is provided with a plurality of semicircular protrusions I 1506 and a plurality of semicircular grooves I 1507, the radius of the semicircular protrusion I 1506 is the same as the radius of the semicircular groove I 1507, and along the height direction of the inclined surface I 1505, the plurality of semicircular protrusions I 1506 and the plurality of semicircular grooves I 1507 are They are connected alternately in sequence to form a wave shape; the inclined surface II1604 is provided with a plurality of semicircular protrusions II1605 and a plurality of semicircular grooves II1606, the radius of the semicircular protrusion II1605 is the same as the radius of the semicircular groove II1606, along the height direction of the inclined surface II1604, the plurality of semicircular protrusions II1605 and the plurality of semicircular grooves II1606 are alternately connected in sequence to form a wave shape; the spacing between the plurality of semicircular protrusions I1506 is d, and the size of d is 20mm-40mm; the spacing between the high point of the semicircular protrusion I1506 and the low point of the semicircular groove I1507 is h, and the size of h is 5mm-15mm.

[0032] Each lower railing 16 is provided with a vertical surface at the lower inner portion, and a plurality of tapered holes 1603 are provided on the vertical surface. The taper of the tapered holes 1603 is 1:10. The plurality of tapered holes 1603 are linearly evenly distributed along the length direction of the lower railing 16. The inner diameter of the tapered holes 1603 close to the inner side of the lower railing 16 is larger than the inner diameter close to the outer side of the lower railing 16. The pressing block pin 17 includes a pressing block portion 1701, a tapered column 1702 and a stud portion 1703. The taper of the tapered column 1702 is 1:10. The tapered column 1702 is fixedly connected to the pressing block. On the side wall of the block part 1701, the stud part 1703 fixes the end of the sub-cone column 1702 away from the pressure block part 1701, the outer diameter of the connection end of the cone column 1702 and the pressure block part 1701 is larger than the outer diameter of the connection end of the cone column 1702 and the stud part 1703, the cone column 1702 is inserted into the conical hole 1603, the pressure block part 1701 is arranged on the inner side of the lower railing 16, the stud part 1703 is arranged on the outer side of the lower railing 16, the pressure block part 1701 is crimped on the top surface of the grate, and the stud part 1703 is connected with a fastener.

[0033] A through hole Ⅰ1508 is provided on the side wall of the two upper railings 15 of each group of upper railing assemblies 14, and the through holes Ⅰ1508 of the two upper railings 15 are connected by fasteners. There are multiple through holes Ⅰ1508 along the height direction of the upper railings 15, and fasteners are connected in the multiple through holes Ⅰ1508. A stop groove Ⅰ1501 and a stop boss Ⅰ1502 are provided on the side wall of the two upper railings 15 of each group of upper railing assemblies 14, and the stop grooves Ⅰ1501 and the stop boss Ⅰ1502 of the two upper railings 15 are staggered with each other. The stop boss Ⅰ1502 of one upper railing 15 is connected to the stop groove Ⅰ1501 of the other upper railing 15.

[0034] Each upper railing 15 is provided with a boss II 1503 at the bottom, and the boss II 1503 is provided on the inner side of the upper railing 15. A windshield 1504 is provided on the inner side of the boss II 1503. The height of the protruding slope Ⅰ 1505 of the windshield 1504 is greater than the height of the protruding slope Ⅰ 1505 of the semicircular boss I 1506. The windshield 1504 and the slope Ⅰ 1505 are smoothly transitioned. The top surface of each lower railing 16 is provided with a stop groove II 1601. The stop groove II 1601 is provided on the inner side of the lower railing 16. The boss II 1503 is connected to the lower railing 16. In the stop groove Ⅱ1601; each upper railing 15 is provided with a through hole Ⅱ1509 on the bottom wall, and each lower railing 16 is provided with a through hole Ⅲ1607 on the top wall. The through holes Ⅱ1509 and Ⅲ1607 are connected by fasteners. There are multiple through holes Ⅱ1509 along the length direction of the upper railing 15, and there are multiple through holes Ⅲ1607 along the length direction of the lower railing 16. The sum of the multiple through holes Ⅱ1509 in each group of upper railing assemblies 14 is the same as the number of the multiple through holes Ⅲ1607 in the lower railing 16 and they are connected one by one by fasteners.

[0035] A stop groove III1602 is provided on the bottom surface of each lower railing 16, and the stop groove III1602 is provided on the outside of the lower railing 16. Bosses I1101 are provided on the left and right sides of the top surface of the trolley body 11, and the stop groove III1602 is connected to the boss I1101. A plurality of through holes IV1608 are provided on the bottom wall of each lower railing 16, and the plurality of through holes IV1608 are linearly evenly distributed along the length direction of the lower railing 16. The plurality of through holes IV1608 are all connected to the trolley body 11 through fasteners, and the trolley body 11 is provided with holes for bolts to pass through.

[0036] The grate bars include end grate bars 12 and middle grate bars 13. The width of the end grate bars 12 is a, and the width of the middle grate bars 13 is b, a=2b. There are two groups of end grate bars 12, and each group of end grate bars 12 has two end grate bars 12 linearly and evenly distributed. There are multiple middle grate bars 13, and multiple middle grate bars 13 are linearly and evenly distributed between the two groups of end grate bars 12. The two groups of end grate bars 12 are respectively arranged on the inner sides of the two lower railings 16, and the pressing block part 1701 is pressed onto the end grate bar 12.

[0037] The sintering trolley 1 of the prior art includes a trolley body 11, a grate, an upper grate assembly 14, a lower grate 16 and a briquetting pin 17. There are two lower grate 16, and the two lower grate 16 are symmetrical. The two lower grate 16 are fixedly connected to the top surface of the trolley body 11, and the two lower grate 16 are respectively connected to the left and right sides of the trolley body 11. There are two upper grate assemblies 14, and the two upper grate assemblies 14 are symmetrical. The two upper grate assemblies 14 are respectively fixedly connected to the top surfaces of the two lower grate 16. There are multiple grate bars, multiple grate bars are connected to the top surface of the trolley body 11, and multiple grate bars connected to the trolley body 11 are all arranged between the two lower grate plates 16. The briquetting pin 17 is fixedly connected to the lower grate 16, and each lower grate 16 is connected to a plurality of briquetting pins 17. The plurality of briquetting pins 17 are all press-connected to the top surface of the grate bars. Each group of upper grate assemblies 14 generally includes three upper grate plates 15. The inner side surfaces of the upper and lower railings 15 and 16 are both vertical planes, the briquetting pins 17 and the lower railings 16 are connected to each other through straight holes and the cylinder, and the multiple grating bars are of the same size; a П-shaped sintering cavity 2 is formed between the upper and lower railings 14, the lower railings 16 and the grating bars. During sintering, the sintering cavity 2 is filled with sintering material, and air enters from above the material after being exhausted by the fan and begins to sinter layer by layer from top to bottom. The sintering material shrinks during the sintering process, and gaps will appear between the upper and lower railings 15 and 16 and the sintering material. The wind resistance at the gaps is reduced, causing the air to flow into the gaps here first, resulting in edge effects and air leakage. At the same time, there are gaps between the three upper railings 15, and the gaps here will also cause air leakage. There will also be gaps at the connection between the straight holes of the briquetting pins 17 and the lower railings 16 and the cylinder, and the gaps here will also cause air leakage.

[0038] In the present invention, the slopes of inclined surface Ⅰ1505 and inclined surface Ⅱ1604 are the same, both ≤7°, and a semicircular protrusion Ⅰ1506 and a semicircular groove Ⅰ1507 are provided on inclined surface Ⅰ1505, and a semicircular protrusion Ⅱ1605 and a semicircular groove Ⅱ1606 are provided on inclined surface Ⅱ1604. The semicircular protrusion Ⅰ1506 and the semicircular groove Ⅰ1507 and the semicircular protrusion Ⅱ1605 and the semicircular groove Ⅱ1606 form a barrier at the gap between the upper railing 15 and the lower railing 16 and the sintering material, so that air flows in from above the sintering material, ensuring that the combustion speed of the materials in the middle and on both sides of the sintering trolley is consistent; in addition, the setting of the windshield 1504 also plays a role in blocking the air in the gap.

[0039] In each group of upper railing assemblies 14, three upper railings 15 are changed into two upper railings 15, which reduces the connection seam. The two upper railings 15 are connected by fasteners, and the two upper railings 15 are interconnected by the stop groove Ⅰ1501 and the stop boss Ⅰ1502 to reduce the air leakage rate.

[0040] The upper railing 15 and the lower railing 16 are connected by fasteners. Since the boss II 1503 and the stop groove II 1601 are connected to each other, the air leakage rate at the connection between the upper railing 15 and the lower railing 16 is reduced.

[0041] The lower railing 16 is connected to the trolley body 11 by fasteners, and the air leakage rate here is reduced due to the mutual connection between the boss I 1101 and the stop groove III 1602.

[0042] The taper of the conical hole 1603 is 1:10, and the taper of the conical column 1702 is 1:10. The conical column 1702 is inserted into the conical hole 1603. The cooperation of the conical hole 1603 and the conical surface of the conical column 1702 forms a closed curve here to avoid air leakage.

[0043] The utility model changes the multiple grates of the same size in the prior art into end grates 12 and middle grates 13. Since the width of the end grates 12 is twice the width of the middle grates 13, the gap at the end grates 12 can generally be controlled within 60 mm. This arrangement enables the sintering trolley 1 to avoid the generation of edge effects. If the gap here is greater than 60 mm and less than 120 mm, there is only one gap between the two end grates 12, which will also greatly curb the edge effects.

Claims

1. A sintering trolley for curbing edge effects, comprising a sintering trolley (1), the sintering trolley (1) comprising a trolley body (11), grates, an upper fence assembly (14), a lower fence (16) and a briquetting pin (17), two lower fences (16) are provided, the two lower fences (16) are symmetrical, the two lower fences (16) are fixedly connected to the top surface of the trolley body (11), the two lower fences (16) are respectively connected to the left and right sides of the trolley body (11), the upper fence assembly (14) is provided with two ... fixedly connected to the left and right sides of the trolley body (11), the upper fence assembly (14) is provided with two, the two lower fences (16) are symmetrical, the two lower fences (16) are fixedly connected to the left and right sides of the trolley body (11), the upper fence assembly (14) is provided with two, the two lower fences (16) are symmetrical, the two lower fences (16) are fixedly connected to The upper fence assembly (14) is symmetrical, and the two upper fence assemblies (14) are respectively fixedly connected to the top surfaces of the two lower fences (16). A plurality of grating bars are provided, and the plurality of grating bars are connected to the top surface of the trolley body (11). The plurality of grating bars connected to the trolley body (11) are all provided between the two lower fences (16). The pressing pin (17) is fixedly connected to the lower fence (16), and each lower fence (16) is connected to a plurality of pressing pins (17). The plurality of pressing pins (17) are all pressed on the top surface of the grating bars. The invention is characterized in that: Each upper railing assembly (14) includes two upper railings (15), the two upper railings (15) are linearly arranged along the length direction of the lower railing (16), the side walls of the two upper railings (15) are fixedly connected, and an inclined surface I (1505) is provided on the inner side of the upper railings (15), the inclined surfaces I (1505) of the upper railings (15) of the two upper railing assemblies (14) are opposite, and the upper ends of the inclined surfaces I (1505) of the upper railings (15) of the two upper railing assemblies (14) are far away from each other, and an inclined surface II (1604) is provided on the upper inner side of each lower railing (16), and a vertical surface is provided on the lower inner side of each lower railing (16), and the inclined surfaces II (1604) of the two lower railings (16) have the same inclination as the inclined surface I (1505) at the top end of the lower railing (16).

2. The sintering trolley for suppressing edge effect according to claim 1, characterized in that: The inclined surface I (1505) is provided with a plurality of semicircular protrusions I (1506) and a plurality of semicircular grooves I (1507), the radius of the semicircular protrusion I (1506) is the same as the radius of the semicircular groove I (1507), and along the height direction of the inclined surface I (1505), the plurality of semicircular protrusions I (1506) and the plurality of semicircular grooves I (1507) are alternately connected in sequence to form a wave shape; the inclined surface II (1604) is provided with a plurality of semicircular protrusions II (1605) and a plurality of semicircular grooves II (1606), the radius of the semicircular protrusion II (1605) is the same as the radius of the semicircular groove II (1606), and along the height direction of the inclined surface II (1604), the plurality of semicircular protrusions II (1605) and the plurality of semicircular grooves II (1606) are alternately connected in sequence to form a wave shape.

3. The sintering trolley for suppressing edge effect according to claim 2, characterized in that: Each lower railing (16) is provided with a vertical surface at the lower inner portion, and a plurality of tapered holes (1603) are arranged on the vertical surface. The plurality of tapered holes (1603) are linearly and evenly distributed along the length direction of the lower railing (16). The inner diameter of the tapered hole (1603) close to the inner side of the lower railing (16) is larger than the inner diameter close to the outer side of the lower railing (16). The pressing block pin (17) includes a pressing block portion (1701), a tapered column (1702) and a stud portion (1703). The tapered column (1702) is fixedly connected to the side wall of the pressing block portion (1701). The stud portion (1703) is fixedly connected to the side wall of the pressing block portion (1701). 03) The sub-cone column (1702) is fixedly connected to one end away from the pressing block portion (1701), the outer diameter of the connection end between the cone column (1702) and the pressing block portion (1701) is larger than the outer diameter of the connection end between the cone column (1702) and the stud portion (1703), the cone column (1702) is inserted into the conical hole (1603), the pressing block portion (1701) is arranged on the inner side of the lower railing (16), the stud portion (1703) is arranged on the outer side of the lower railing (16), the pressing block portion (1701) is pressed onto the top surface of the grating bar, and a fastener is connected to the stud portion (1703).

4. The sintering trolley for suppressing edge effect according to claim 3, characterized in that: The two upper railings (15) of each group of upper railing assemblies (14) are connected to each other on the side walls with a through hole I (1508), the through holes I (1508) of the two upper railings (15) are connected by fasteners, a plurality of through holes I (1508) are provided along the height direction of the upper railings (15), and a fastener is connected in each of the plurality of through holes I (1508), the two upper railings (15) of each group of upper railing assemblies (14) are connected to each other on the side walls with a stop groove I (1501) and a stop boss I (1502), the stop grooves I (1501) and the stop boss I (1502) of the two upper railings (15) are staggered with each other, and the stop boss I (1502) of one upper railing (15) is connected to the stop groove I (1501) of the other upper railing (15).

5. The sintering trolley for suppressing edge effect according to claim 4, characterized in that: Each upper railing (15) is provided with a boss II (1503) at the bottom, the boss II (1503) is provided on the inner side of the upper railing (15), and a windshield (1504) is provided on the inner side of the boss II (1503). The height of the protruding inclined surface I (1505) of the windshield (1504) is greater than the height of the protruding inclined surface I (1505) of the semicircular protrusion I (1506). The windshield (1504) and the inclined surface I (1505) are smoothly transitioned. The top surface of each lower railing (16) is provided with a stop groove II (1601), the stop groove II (1601) is provided on the inner side of the lower railing (16), and the boss II (150 3) connected in the stop groove II (1601); each upper railing (15) is provided with a through hole II (1509) on the bottom wall, and each lower railing (16) is provided with a through hole III (1607) on the top wall, and the through hole II (1509) and the through hole III (1607) are connected by fasteners. There are multiple through holes II (1509) along the length direction of the upper railing (15), and there are multiple through holes III (1607) along the length direction of the lower railing (16). The sum of the multiple through holes II (1509) of each group of upper railing components (14) is the same as the number of the multiple through holes III (1607) of the lower railing (16) and they are connected one by one by fasteners.

6. The sintering trolley for suppressing edge effect according to claim 5, characterized in that: Each lower railing (16) is provided with a stop groove III (1602) on the bottom surface, and the stop groove III (1602) is provided on the outside of the lower railing (16). The left and right sides of the top surface of the trolley body (11) are provided with bosses I (1101), and the stop groove III (1602) is connected to the boss I (1101). Each lower railing (16) is provided with a plurality of through holes IV (1608) on the bottom wall, and the plurality of through holes IV (1608) are linearly evenly distributed along the length direction of the lower railing (16). The plurality of through holes IV (1608) are all connected to the trolley body (11) through fasteners, and the trolley body (11) is provided with holes for bolts to pass through.

7. The sintering trolley for suppressing edge effect according to claim 6, characterized in that: The grate bars include end grate bars (12) and middle grate bars (13), the width of the end grate bars (12) is a, the width of the middle grate bars (13) is b, a=2b, two groups of end grate bars (12) are provided, each group of end grate bars (12) has two end grate bars (12) linearly and evenly distributed, a plurality of middle grate bars (13) are provided, and the plurality of middle grate bars (13) are linearly and evenly distributed between the two groups of end grate bars (12), the two groups of end grate bars (12) are respectively provided on the inner sides of the two lower railings (16), and the pressing block portion (1701) is pressed on the end grate bars (12).

8. The sintering trolley for suppressing edge effect according to any one of claims 2 to 7, characterized in that: The spacing between the multiple semicircular protrusions I (1506) is d, and the size of d is 20mm-40mm; the spacing between the high point of the semicircular protrusion I (1506) and the low point of the semicircular groove I (1507) is h, and the size of h is 5mm-15mm.

9. The sintering trolley for suppressing edge effect according to any one of claims 1 to 7, characterized in that: The angle between the inclined surface I (1505) and the vertical surface is ≤7°; the angle between the inclined surface II (1604) and the vertical surface is ≤7°.

10. The sintering trolley for suppressing edge effect according to any one of claims 3 to 7, characterized in that: The taper of the tapered hole (1603) is 1:10; the taper of the tapered column (1702) is 1:10.

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