Double elastic sealing device for sintering machine and belt sintering machine

Abstract

The present invention provides a double elastic sealing device for a sintering machine and a belt sintering machine, comprising an upper elastic sealing mechanism and a lower elastic sealing mechanism, wherein the upper elastic sealing mechanism comprises an upper slide plate and an upper elastic component, the upper elastic component comprises at least one first elastic member, the lower elastic sealing mechanism comprises a lower slide plate and a lower elastic component, the lower slide plate abuts against the upper slide plate, and the upper slide plate is movably arranged relative to the lower slide plate, and the lower elastic component comprises at least one second elastic member, and the second elastic member is connected between the lower slide plate and the bellows side beam of the sintering machine. In addition, the lower elastic sealing mechanism also comprises at least one position display member, the fixed end of the position display member is fixedly connected to the second elastic member, and the free end extends outward from the fixed end to be cantilevered from the lower slide plate. The present invention can effectively reduce the failure rate of the elastic sealing device, reduce the running resistance of the sintering machine trolley, and facilitate the judgment of the failure of the elastic sealing device by setting the position display member.

Description

Technical Field

[0001] The invention relates to the technical field of sintering machines, and in particular to a double elastic sealing device of a sintering machine and a belt-type sintering machine. Background Art

[0002] As one of the raw material supply equipment for blast furnace, the sintering machine plays an especially important role. The sintering machine trolley is mainly responsible for loading, igniting, sintering and discharging sintered ore on the track. The belt sintering machine is the main equipment in the sintering process. The star wheel continuously rotates to generate power to drive the trolley to rotate in a cycle. The head star wheel has power as the driving wheel, and the tail star wheel has no power as the passive wheel. The sintering machine trolley is divided into two sections: the upper sintering section and the lower return section. The trolleys are not connected to each other and are pushed by mutual squeezing.

[0003] The existing belt sintering machine is provided with a slide plate, and the sintering machine trolley carrying the material is located above the slide plate. The bottom of the sintering machine trolley is provided with grate bars, and an exhaust device is provided under the slide plate. The exhaust device is used to exhaust the sintering machine trolley to achieve full combustion of the material. Under the action of the exhaust device, the air that passes through the material layer of the sintering machine trolley and enters the bellows is effective air, and the air that enters the bellows and flue without passing through the material layer is ineffective air or called leakage air. Sintering air leakage not only wastes the power consumption of the main exhaust fan, but also reduces the effective air volume and causes a decrease in productivity. Reducing air leakage can significantly reduce the power consumption of the main exhaust fan and improve productivity. Therefore, the prevention and control of air leakage in sintering machines has always been an important energy-saving and production-preserving task, and has always been widely valued.

[0004] Furthermore, during the production process of the sintering machine trolley, there is a relative movement between the moving sintering machine trolley and the fixed bellows slide. In order to ensure that the wind passes through the material layer of the sintering machine trolley, a sealing device must be provided to ensure that the external air does not enter the bellows through the sintering machine trolley and the bellows slide. However, the sealing device in the prior art usually adopts a sintering machine trolley sealing device, which is mostly installed on the sintering machine trolley, that is, it is called an upper spring seal. In this case, only one set of elastic sealing devices is provided. Since the sintering machine trolley has a large mass (usually 5 to 12 tons, and the weight of the material is basically the same as that of the sintering machine trolley), when the elastic sealing device fails, considering the influence of the exhaust negative pressure, its pressure can usually reach (50 to 100 KN / m). Once the sealing device fails, the running resistance of the trolley will be greatly increased, the wear of the elastic sealing device will be accelerated, the sealing effect will be deteriorated, the power of the drive motor will be increased, and the power consumption will be increased.

[0005] In addition, in the prior art, there is a lack of effective detection means for the failure of the sealing device of the sintering machine, and it is difficult to ensure a good sealing effect during the long-term operation of the sintering machine. Moreover, when the sealing device is damaged, since the sealing device is installed under the installation bottom plate of the sintering machine trolley, the position is very hidden and it is not easy to observe with the naked eye.

[0006] In view of this, it is necessary to propose a double elastic sealing device for a sintering machine and a belt sintering machine to solve or at least alleviate the above defects. Summary of the invention

[0007] The main purpose of the present invention is to provide a double elastic sealing device for a sintering machine to solve the problems in the prior art of using a single elastic sealing device, such as high failure rate, large running resistance of the trolley, rapid wear of the elastic sealing device, and lack of effective detection means after failure of the sealing device.

[0008] To achieve the above object, the present invention provides a double elastic sealing device for a sintering machine, comprising an upper elastic sealing mechanism and a lower elastic sealing mechanism arranged along the length direction of a sintering machine trolley, wherein the lower elastic sealing mechanism is correspondingly arranged directly below the upper elastic sealing mechanism; wherein,

[0009] The upper elastic sealing mechanism comprises an upper slide plate and an upper elastic component; wherein the upper slide plate extends along the length direction of the sintering machine trolley, and the upper slide plate is arranged at a preset distance in parallel at the lower side of the mounting base plate of the sintering machine trolley; the upper elastic component comprises at least one first elastic member arranged at intervals along the length direction of the sintering machine trolley; the first elastic member is connected between the mounting base plate and the upper slide plate, so that the distance between the upper slide plate and the mounting base plate is adjustable;

[0010] The lower elastic sealing mechanism comprises a lower slide plate and a lower elastic component; wherein the lower slide plate extends along the length direction of the sintering machine trolley, and the lower slide plate is arranged above the bellows side beam of the sintering machine in parallel and at a preset distance; the lower slide plate abuts against the upper slide plate, and the upper slide plate is movably arranged relative to the lower slide plate along the length direction of the sintering machine trolley; the lower elastic component comprises at least one second elastic member arranged at intervals along the length direction of the sintering machine trolley; the second elastic member is connected between the lower slide plate and the bellows side beam of the sintering machine, so that the distance between the upper slide plate and the bellows side beam is adjustable;

[0011] The lower elastic sealing mechanism also includes at least one position display component, which includes a fixed end and a free end that are relatively arranged, the fixed end is fixedly connected to the second elastic component, and the free end extends outward from the fixed end and is cantilevered from the lower slide plate.

[0012] Preferably, the second elastic member comprises a lower groove plate and a second spring; the lower groove plate is fixed to the upper part of the bellows side beam, and the lower groove plate is arranged below the lower slide plate in parallel and at a preset distance; the top of the second spring is connected to the bottom surface of the lower slide plate, and the bottom of the second spring is connected to the top surface of the lower groove plate;

[0013] The cross section of the lower chute plate is in the shape of a groove with an opening upward, and the cross section of the lower slide plate is in the shape of a groove with an opening downward; the width of the groove of the lower slide plate is greater than the width of the groove of the lower chute plate;

[0014] The side plate of the lower slide groove plate is provided with a mounting hole for installing the position display component, and the side plate of the lower slide plate is provided with a long waist hole for the position display component to move vertically. The fixed end of the position display component is installed in the mounting hole, and the free end is cantilevered from the fixed end to the outside through the long waist hole.

[0015] Preferably, the first elastic member includes an upper slide groove plate and a first spring; wherein, the upper slide groove plate is fixed to the lower side of the mounting base plate, and the upper slide groove plate is arranged above the upper slide plate in parallel and at a preset distance; the top of the first spring is connected to the bottom surface of the upper slide groove plate, and the bottom of the first spring is connected to the top surface of the upper slide plate.

[0016] Preferably, the upper slide groove plate and the lower slide groove plate are both channel steels with groove-shaped cross-sections, the opening of the upper slide groove plate is set toward the direction of the upper slide plate, the groove width of the upper slide groove plate is greater than the width of the upper slide plate, the upper slide groove plate and the upper slide plate together form a first chamber, and the first spring is arranged in the first chamber; the lower slide groove plate and the lower slide plate together form a second chamber, and the second spring is arranged in the second chamber.

[0017] Preferably, the upper elastic component further comprises at least one second elastic member arranged at intervals along the length direction of the sintering machine trolley, the second elastic member being connected between the upper slide plate and the upper slide plate; the upper slide plate is provided with a first connecting hole which passes through vertically; the upper slide plate is provided with a second connecting hole corresponding to the first connecting hole; the second connecting hole is a stepped hole, and the top diameter of the second connecting hole is smaller than the bottom diameter;

[0018] Among them, the second elastic member includes a third spring, a first rod body and first fixing rings respectively arranged at both ends of the first rod body; the first fixing ring is used to prevent the first rod body from escaping from the first connecting hole and the second connecting hole, the first rod body is slidably arranged relative to at least one of the first connecting hole and the second connecting hole, and the third spring is sleeved on the outer surface of the first rod body and abuts between the upper sliding groove plate and the upper sliding plate.

[0019] Preferably, the lower elastic component further comprises a second rod body and a second fixing ring arranged at the bottom end of the second rod body; the lower slide plate is provided with a third connecting hole which passes through vertically; the lower slide groove plate is provided with a positioning column which protrudes upward at a position corresponding to the third connecting hole, and the positioning column is provided with a fourth connecting hole corresponding to the third connecting hole;

[0020] Among them, the fourth connecting hole is a stepped hole, and the top diameter of the fourth connecting hole is smaller than the bottom diameter; the second fixing ring is used to prevent the second rod body from escaping from the third connecting hole and the fourth connecting hole, the second rod body is slidably arranged relative to the fourth connecting hole, and the second spring is arranged on the outer surface of the positioning column and is supported between the lower sliding groove plate and the lower sliding plate.

[0021] Preferably, the upper elastic sealing mechanism further comprises a C-shaped upper sealing member, the upper sealing member is arranged in the first chamber, the opening of the upper sealing member is arranged toward the first pin shaft, the upper sealing member extends along the length direction of the sintering machine trolley, the upper sealing member comprises a first end and a second end arranged opposite to each other, the first end is sealed and fixedly connected to the upper slide plate, and the second end is sealed and fixedly connected to the upper slide plate;

[0022] The lower elastic sealing mechanism also includes a C-shaped lower sealing member, which is arranged in the second chamber. The opening of the lower sealing member is arranged toward the second pin shaft. The lower sealing member extends along the length direction of the sintering machine trolley, and the lower sealing member includes a third end and a fourth end that are relatively arranged; the third end is sealed and fixedly connected to the lower slide plate, and the fourth end is sealed and fixedly connected to the lower slide groove plate.

[0023] Preferably, the lower elastic sealing mechanism also includes a lubricating oil pipe; an oil storage tank extending along the length direction of the sintering machine trolley is provided at the top of the lower slide plate, and a first oil pipe mounting hole for the oil pipe connected to the oil storage tank is formed downwardly in the middle of the oil storage tank, and a second oil pipe mounting hole corresponding to the first oil pipe mounting hole is provided on the lower slide trough plate, and the second oil pipe mounting hole vertically penetrates the lower slide trough plate; a second internal thread section is formed on the hole wall of the first oil pipe mounting hole, and the lubricating oil pipe is made of a hose material, and a third external thread section matching the second internal thread section is formed on the top of the lubricating oil pipe, and a joint for connecting to the centralized lubrication system of the sintering machine is reserved at the bottom of the lubricating oil pipe, and the lubricating oil pipe is installed at the first oil pipe mounting hole through the third external thread and the second internal thread.

[0024] Preferably, the first rod body is a first pin shaft, and the first fixing ring is a tightening nut; wherein the third spring is sleeved on the outer surface of the first pin shaft, a first external thread section matching the tightening nut is formed on the top of the first pin shaft, and the first pin shaft is connected to the tightening nut by passing through the second connecting hole and the first connecting hole, so as to adjust the third spring to a pre-tightened initial state;

[0025] The second rod body is a second pin shaft, a second external thread section is formed on the top of the second pin shaft, and a first internal thread section matching the second external thread section is formed on the wall of the third connecting hole, wherein the second pin shaft is threadedly connected to the lower slide plate by passing through the fourth connecting hole and the third connecting hole to adjust the second spring to a pre-tightened initial state.

[0026] The present invention also provides a belt sintering machine, comprising a sintering machine body, wherein the sintering machine body comprises a bellows side beam and a plurality of sintering machine trolleys arranged in sequence around a running track, and further comprises a double elastic sealing device for the sintering machine as described above, wherein the upper elastic sealing mechanism of the double elastic sealing device for the sintering machine is fixedly connected to the bottom plate of the sintering machine, and the lower elastic sealing mechanism of the double elastic sealing device for the sintering machine is fixedly connected to the bellows side beam.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention provides a sintering machine double elastic sealing device and a belt sintering machine, comprising an upper elastic sealing mechanism and a lower elastic sealing mechanism, wherein the upper elastic sealing mechanism comprises an upper slide plate and an upper elastic component, the upper elastic component comprises at least one first elastic member, the first elastic member is connected between the mounting base plate and the upper slide plate, so that the spacing between the upper slide plate and the mounting base plate is adjustable, the lower elastic sealing mechanism comprises a lower slide plate and a lower elastic component, the lower slide plate abuts against the upper slide plate, and the upper slide plate is movably arranged relative to the lower slide plate along the length direction of the sintering machine trolley, and the lower elastic component comprises at least one second elastic member, the second elastic member is connected between the lower slide plate and the bellows side beam of the sintering machine, so that the spacing between the upper slide plate and the bellows side beam is adjustable. The present invention ensures that the pressure between the upper slide plate and the lower slide plate is controlled within a smaller range value through the coordinated use of the upper elastic sealing mechanism and the lower elastic sealing mechanism through the first elastic member and the second elastic member. Moreover, even if one of the elastic sealing devices fails, it will not cause excessive wear of the upper slide plate and the lower slide plate, thereby ensuring the normal operation of the sintering machine trolley and extending the service life of the upper slide plate and the lower slide plate.

[0029] In addition, by setting up a position display, it is possible to intuitively judge whether the double elastic sealing device has a fault during operation and maintenance, and on this basis, mark and perform regular maintenance to ensure that the pressure between the upper slide plate and the lower slide plate is in a controllable state. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 This is an application scenario diagram in one embodiment of the present invention;

[0032] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0033] Figure 3 It is a structural schematic diagram of an upper elastic sealing mechanism in one embodiment of the present invention;

[0034] Figure 4 is a cross-sectional schematic diagram along the AA direction when the third spring in one embodiment of the present invention is in an initial working state;

[0035] Figure 5 is a cross-sectional schematic diagram along the AA direction when the third spring in an embodiment of the present invention is in a compressed state;

[0036] Figure 6 is a schematic structural diagram of a lower elastic sealing mechanism in one embodiment of the present invention;

[0037] Figure 7 is a cross-sectional schematic diagram of a lower elastic sealing mechanism in another viewing angle in one embodiment of the present invention;

[0038] Figure 8 for Figure 7 Schematic diagram of the cross section along the BB direction;

[0039] Fig. 9 It is a cross-sectional schematic diagram along the CC direction when the second spring in one embodiment of the present invention is in an initial non-working state before compression;

[0040] Fig.10 It is a cross-sectional schematic diagram along the CC direction when the second spring in one embodiment of the present invention is in a normal working state after being compressed;

[0041] Fig.11 is a cross-sectional schematic diagram along the CC direction when the second spring in one embodiment of the present invention is in a post-compression limit state;

[0042] Fig.12is a schematic structural diagram of a lower elastic sealing mechanism in another perspective in one embodiment of the present invention;

[0043] Fig.13 for Fig.12 The enlarged schematic diagram of point D in FIG.

[0044] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

[0045] Description of Figure Numbers:

[0046] 10. upper elastic sealing mechanism; 110. upper slide plate; 111. second connecting hole; 120. upper elastic assembly; 1211. upper slide plate; 1212. first connecting hole; 1213. first spring; 1221. third spring; 1222. first rod body; 1223. first fixing ring; 130. first chamber; 140. first fastener; 150. first guide post; 160. second guide post; 170. upper sealing member; 171. first end; 172. second end;

[0047] 20. Lower elastic sealing mechanism; 210. Lower slide plate; 211. Third connecting hole; 212. Oil storage tank; 213. First oil pipe mounting hole; 214. Mounting hole; 220. Lower elastic component; 2211. Second elastic member; 2212. Lower slide plate; 2213. Positioning column; 2214. Fourth connecting hole; 2215. Second spring; 2216. Second rod body; 2217. Second fixing ring; 2218. Second oil pipe mounting hole; 2219. Long waist hole; 230. Second chamber; 240. Second fastener; 250. Position display member; 251. Fixed end; 252. Free end; 260. Lower sealing member; 261. Third end; 262. Fourth end; 270. Lubricating oil pipe; 30. Sintering machine trolley; 310. Mounting bottom plate; 40. Bellows side beam. DETAILED DESCRIPTION

[0048] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0051] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] Please refer to the attached Figure 1-13 In one embodiment of the present invention, a double elastic sealing device for a sintering machine comprises an upper elastic sealing mechanism 10 and a lower elastic sealing mechanism 20 arranged along the length direction of a sintering machine trolley 30, and the lower elastic sealing mechanism 20 is correspondingly arranged directly below the upper elastic sealing mechanism 10. It should be explained in advance that for the side sealing structure of the sintering machine, the traditional sintering machine usually adopts the form of a bellows fixed slide plate + a sintering machine trolley 30 elastic slide plate. Due to the high temperature working environment and 24-hour continuous operation, there are more dust particles when the sintering machine trolley 30 is unloaded, and it is easy for the slide plate of the sintering machine trolley 30 to get stuck. When the slide plate of the sintering machine trolley 30 is stuck, the elastic force of the elastic slide plate of the sintering machine trolley 30 is already in a failed state at this time, which leads to an increase in the pressure between the slide plate of the sintering machine trolley 30 and the bellows fixed slide plate, which in turn leads to an increase in the friction resistance between the two, and also leads to a large wear of the slide plate of the sintering machine trolley 30 and the bellows fixed slide plate.

[0053] Based on this, the present application proposes a new type of double elastic sealing device for a sintering machine, comprising an upper elastic sealing mechanism 10 and a lower elastic sealing mechanism 20 arranged along the length direction of the sintering machine trolley 30, wherein the upper elastic sealing mechanism 10 is fixed below the bottom plate of the sintering machine trolley 30, and the lower elastic sealing mechanism 20 is fixed above the bellows side beam 40 of the sintering machine. In other words, the upper elastic sealing mechanism 10 follows the sintering machine trolley 30 to move along the running track (not shown in the figure), and the lower elastic sealing mechanism 20 remains fixed, so that the upper elastic sealing mechanism 10 is movably arranged relative to the lower elastic sealing mechanism 20 along the length direction of the sintering machine trolley 30.

[0054] The upper elastic sealing mechanism 10 includes an upper slide plate 110 and an upper elastic component 120; wherein, the upper slide plate 110 extends along the length direction of the sintering machine trolley 30, and the upper slide plate 110 is arranged at a preset distance in parallel at the lower side of the mounting base plate 310 of the sintering machine trolley 30; the upper elastic component 120 includes at least one first elastic member (not shown) arranged at intervals along the length direction of the sintering machine trolley 30; the first elastic member is connected between the mounting base plate 310 and the upper slide plate 110, so that the distance between the upper slide plate 110 and the mounting base plate 310 is adjustable.

[0055] It is worth noting that the first elastic member can provide a certain elastic force, which can make the spacing between the upper slide plate 110 and the mounting base plate 310 adjustable. It can be understood that the position of the mounting base plate 310 remains relatively fixed in the vertical direction, and the upper slide plate 110 will move up and down vertically driven by the first elastic member. Among them, the number of the first elastic members can be set according to actual needs, which can be one or more, and the arrangement of multiple first elastic members can also be other types, such as a matrix arrangement. Specifically, when the first elastic member is in a non-working initial state, the first elastic member will maintain a normal initial state. After entering the working state, the first elastic member reaches a certain compression state to provide a certain elastic force. Due to the existence of this elastic force, the friction between the upper slide plate 110 and the lower slide plate 210 described later is reduced, thereby reducing the running resistance of the sintering machine trolley 30.

[0056] The lower elastic sealing mechanism 20 includes a lower slide plate 210 and a lower elastic component 220; wherein, the lower slide plate 210 extends along the length direction of the sintering machine trolley 30, and the lower slide plate 210 is arranged above the bellows side beam 40 of the sintering machine in parallel and at a preset distance; the lower slide plate 210 is abutted against the upper slide plate 110, and the upper slide plate 110 is movably arranged relative to the lower slide plate 210 along the length direction of the sintering machine trolley 30; the lower elastic component 220 includes at least one second elastic member 2211 arranged at intervals along the length direction of the sintering machine trolley 30; the second elastic member 2211 is connected between the lower slide plate 210 and the bellows side beam 40 of the sintering machine, so that the distance between the upper slide plate 110 and the bellows side beam 40 is adjustable.

[0057] It is also worth noting that the second elastic member 2211 can also provide a certain elastic force, which can make the spacing between the lower slide plate 210 and the bellows side beam 40 adjustable. It can be understood that the position of the bellows side beam 40 remains fixed, and the lower slide plate 210 will be movably arranged vertically up and down under the drive of the second elastic member 2211. Among them, the number of the second elastic members 2211 can be set according to actual needs, and can be one or more. Specifically, when the second elastic member 2211 is in a non-working initial state, the second elastic member 2211 will maintain a normal initial state. After entering the working state, the second elastic member 2211 reaches a certain compression state to provide a certain elastic force. Due to the existence of this elastic force, the friction between the upper slide plate 110 and the lower slide plate 210 can be reduced, thereby reducing the running resistance of the sintering machine trolley 30. It should be noted that the upper slide plate 110 and the lower slide plate 210 maintain a state of mutual abutment and friction. In this state, a certain degree of sealing can be ensured between the upper slide plate 110 and the lower slide plate 210, thereby preventing the wind of the sintering machine from leaking into the wind box from here.

[0058] In addition, in order to increase the service life of the upper slide plate 110 and the lower slide plate 210, in a preferred embodiment, the material of the upper slide plate 110 and the lower slide plate 210 is usually NM400 or quenched and tempered 35# steel to enhance its wear resistance.

[0059] The lower elastic sealing mechanism 20 also includes at least one position display member 250, and the position display member 250 includes a fixed end 251 and a free end 252 arranged opposite to each other, the fixed end 251 is fixedly connected to the second elastic member 2211, and the free end 252 extends outward from the fixed end 251 and is cantilevered from the lower slide plate 210. It is worth noting for those skilled in the art that in the prior art, there is a lack of effective detection means for the failure of the sealing device of the sintering machine, and it is difficult to ensure a good sealing effect in the long-term operation of the sintering machine. Moreover, when the sealing device is damaged, since the sealing device is installed below the mounting base 310 of the sintering machine trolley 30, the position is very hidden and it is not easy to observe with the naked eye. Based on this, by setting the position display member 250, the staff can make corresponding adjustments by observing the position of the position display member 250 and the relative position relationship with nearby components, which will be described in detail later in conjunction with specific embodiments.

[0060] The present application sets up a double elastic sealing mechanism of an upper elastic sealing mechanism 10 and a lower elastic sealing mechanism 20. Since the probability of the upper elastic sealing mechanism 10 and the lower elastic sealing mechanism 20 failing at the same time is small, the elastic force between the upper slide plate 110 and the lower slide plate 210 can be controlled within a small range, effectively reducing the friction between the upper slide plate 110 and the lower slide plate 210, thereby reducing the running resistance of the sintering machine trolley 30 and ensuring the sealing effect. At the same time, since the resistance between the upper slide plate 110 and the lower slide plate 210 is small, the driving motor power can be reduced, and the problem of excessive wear of the upper slide plate 110 and the lower slide plate 210 after the upper slide plate 110 is stuck in the traditional sintering machine can also be solved. In addition, by setting up a position display part 250, it is convenient to intuitively judge whether the double elastic sealing mechanism fails during operation and maintenance.

[0061] As a preferred embodiment, the second elastic member 2211 includes a lower groove plate 2212 and a second spring 2215; the lower groove plate 2212 is fixed to the top of the bellows side beam 40, and the lower groove plate 2212 is arranged below the lower slide plate 210 in parallel and at a preset distance; the top of the second spring 2215 is connected to the bottom surface of the lower slide plate 210, and the bottom of the second spring 2215 is connected to the top surface of the lower groove plate 2212;

[0062] The cross section of the lower chute plate 2212 is in the shape of a groove with an opening facing upward, and the cross section of the lower slide plate 210 is in the shape of a groove with an opening facing downward; the width of the groove of the lower slide plate 210 is greater than the width of the groove of the lower chute plate 2212;

[0063] The side plate of the lower slide groove plate 2212 is provided with a mounting hole 214 for installing the position display component 250, and the side plate of the lower slide plate 210 is provided with a long waist hole 2219 for the position display component 250 to move vertically. The fixed end 251 of the position display component 250 is installed in the mounting hole 214, and the free end 252 is cantilevered from the fixed end 251 to the outside through the long waist hole 2219.

[0064] It is worth noting that in order to improve the stability of the upper elastic sealing mechanism 10 and the lower elastic sealing mechanism 20 and improve the force structure, in this embodiment, a lower slide chute plate 2212 is provided, and the lower slide chute plate 2212 is fixedly connected to the bellows side beam 40 of the sintering machine. The lower slide chute plate 2212 can increase the contact area with the mounting bottom plate 310 of the sintering machine trolley 30 and improve the force structure. The lower slide chute plate 2212 can be made of channel steel, which has the advantages of excellent force structure, moderate price, and easy to obtain in engineering. In addition, by providing a second spring 2215, the elastic force of the second spring 2215 can be used to reduce the friction between the upper slide plate 110 and the lower slide plate 210, thereby reducing the running resistance of the sintering machine trolley 30. In addition, the fixed end 251 of the position display member 250 is installed in the installation hole 214. At this time, the position of the position display member 250 remains fixed. At this time, it is possible to determine whether a fault has occurred by observing the relative position relationship between the position display member 250 and nearby components. For example, the type of fault can be determined by observing the relative position relationship between the position display member 250 and the long waist hole 2219, so as to make targeted protective measures. In addition, the position display member 250 can be a bolt, screw, pin or other component that can be used for indication, which can ensure a certain structural strength. Preferably, a position display bolt is used.

[0065] As a preferred embodiment of the present invention, the first elastic member includes an upper slide plate 1211 and a first spring 1213; wherein the upper slide plate 1211 is fixed to the lower side of the mounting base plate 310, and the upper slide plate 1211 is arranged above the upper slide plate 110 in parallel and at a preset distance; the top of the first spring 1213 is connected to the bottom surface of the upper slide plate 1211, and the bottom of the first spring 1213 is connected to the top surface of the upper slide plate 110. In this embodiment, by setting the upper slide plate 1211, the upper slide plate 1211 is fixedly connected to the bottom plate of the sintering machine trolley 30, and the upper slide plate 1211 can increase the contact area with the mounting base plate 310 of the sintering machine trolley 30. wherein the upper slide plate 1211 can be made of channel steel, which has the advantages of excellent force-bearing structure, moderate price, and easy acquisition in engineering. In addition, by setting the first spring 1213 and utilizing the elastic force of the first spring 1213, the friction between the upper slide plate 110 and the lower slide plate 210 can be reduced, thereby achieving soft contact between the upper slide plate 110 and the lower slide plate 210 and avoiding direct hard contact between the two, thereby reducing the running resistance of the sintering machine trolley 30.

[0066] As a preferred embodiment of the present invention, the upper chute plate 1211 and the lower chute plate 2212 are both channel steels with groove-shaped cross sections, the opening of the upper chute plate 1211 is arranged toward the upper slide plate 110, the groove width of the upper chute plate 1211 is greater than the width of the upper slide plate 110, the upper chute plate 1211 and the upper slide plate 110 enclose a first chamber 130, and the first spring 1213 is arranged in the first chamber 130; the groove of the lower slide plate 210 and the lower slide plate 210 enclose a second chamber 230, and the second spring 2215 is arranged in the second chamber 230. Among them, the upper chute plate 1211 and the lower chute plate 2212 include but are not limited to channel steels with groove-shaped cross sections, and can also be other shapes or other materials, which can be set according to actual needs.

[0067] As another preferred embodiment of the present invention, the upper elastic component 120 further includes at least one second elastic member 2211 arranged at intervals along the length direction of the sintering machine trolley 30, and the second elastic member 2211 is connected between the upper slide plate 1211 and the upper slide plate 110; the upper slide plate 1211 is provided with a first connecting hole 1212 which passes through vertically; the upper slide plate 110 is provided with a second connecting hole 111 corresponding to the first connecting hole 1212; the second connecting hole 111 is a stepped hole, and the top diameter of the second connecting hole 111 is smaller than the bottom diameter;

[0068] Among them, the second elastic member 2211 includes a third spring 1221, a first rod body 1222 and a first fixing ring 1223 respectively arranged at both ends of the first rod body 1222; the first fixing ring 1223 is used to prevent the first rod body 1222 from escaping from the first connecting hole 1212 and the second connecting hole 111, the first rod body 1222 is slidably arranged relative to at least one of the first connecting hole 1212 and the second connecting hole 111, and the third spring 1221 is sleeved on the outer surface of the first rod body 1222 and abuts between the upper sliding groove plate 1211 and the upper sliding plate 110.

[0069] It should be noted that before the working load is applied, a certain preload force is applied to the third spring 1221 in advance in order to enhance the reliability and tightness of the connection, prevent gaps or relative slippage between the connecting parts after the load is applied, ensure the stability of the structure, and extend the service life of the third spring 1221. In this embodiment, at least one second elastic member 2211 is arranged at intervals along the length direction of the sintering machine trolley 30, wherein the number of the second elastic members 2211 can be one or more, and those skilled in the art can set it according to actual needs. Specifically, the second elastic member 2211 includes a first rod body 1222 and a first fixing ring 1223 provided at both ends of the first rod body 1222. When installed, the first rod body 1222 extends upward from the second connecting hole 111 and extends into the first connecting hole 1212, and then the first fixing ring 1223 is provided at both ends of the first rod body 1222, or one of the first fixing rings 1223 is integrally formed with the first rod body 1222, which can also achieve the purpose.

[0070] In addition, it is worth noting for those skilled in the art that, in a preferred embodiment, in order to improve the sealing between the upper slide plate 110 and the lower slide plate 210, the first rod body 1222 in this embodiment extends into the second connection hole 111, and the bottom of the first rod body 1222 is arranged higher than the bottom surface of the upper slide plate 110. Through the fixing effect of the first fixing ring 1223, the third spring 1221 can be locked in a pre-compression state to a certain extent, so that the third spring 1221 has a certain pre-tightening force. Specifically, when the first spring 1213 is in the initial state, the first fixing ring 1223 contacts the upper slide plate 1211 and / or the upper slide plate 110; when the first spring 1213 is in the compressed state, there is a preset spacing distance between the first fixing ring 1223 and the upper slide plate 1211 and / or the upper slide plate 110.

[0071] As another preferred embodiment, the lower elastic component 220 further includes a second rod body 2216 and a second fixing ring 2217 provided at the bottom end of the second rod body 2216; the lower slide plate 210 is provided with a third connecting hole 211 which passes through vertically; the lower slide plate 2212 is provided with a positioning column 2213 which protrudes upwards at a position corresponding to the third connecting hole 211, and the positioning column 2213 is formed with a fourth connecting hole 2214 which corresponds to the third connecting hole 211;

[0072] Among them, the fourth connecting hole 2214 is a stepped hole, and the top diameter of the fourth connecting hole 2214 is smaller than the bottom diameter; the second fixing ring 2217 is used to prevent the second rod body 2216 from escaping from the third connecting hole 211 and the fourth connecting hole 2214, and the second rod body 2216 is slidably arranged relative to the fourth connecting hole 2214, and the second spring 2215 is arranged on the outer surface of the positioning column 2213 and is supported between the lower sliding groove plate 2212 and the lower sliding plate 210.

[0073] It should be noted that, before the working load is applied, a certain pre-tightening force is applied to the second spring 2215 in advance in order to enhance the reliability and tightness of the connection, prevent gaps or relative slippage between the connecting parts after the load is applied, ensure the stability of the structure, and extend the service life of the second spring 2215. In this embodiment, a second rod body 2216 and a second fixing ring 2217 are provided at the bottom of the second rod body 2216. Specifically, during installation, the second rod body 2216 extends upward from the fourth connecting hole 2214 and extends into the third connecting hole 211, and then the second fixing ring 2217 is provided at the bottom end of the second rod body 2216, or the second fixing ring 2217 and the second rod body 2216 are provided as an integral molding, which can also achieve the purpose.

[0074] In addition, in a preferred embodiment, in order to improve the sealing between the lower slide plate 210 and the upper slide plate 110, the second rod body 2216 in this embodiment extends into the third connecting hole 211, and the top of the second rod body 2216 is set lower than the top of the lower slide plate 210. Through the fixing effect of the second fixing ring 2217, the second spring 2215 can be locked in a certain pre-compression state, so that the second spring 2215 has a certain pre-tightening force.

[0075] In order to further understand this technical solution, please refer to the attached Figure 4-11, a preferred embodiment is provided below for specific example description; specifically, the preload force of the third spring 1221 is set to be greater than the preload force of the second spring 2215, wherein the third spring 1221 is in an initial non-compressed state when working (the structural design maintains a certain initial pressure, such as 1000N / m~1500N / m, and the upper slide plate 110 will be compressed only when the pressure exceeds the pressure, and its maximum compression does not exceed 8mm, and the maximum elastic force can be set to 3000N / m~5000N / m, and the upper slide plate 110 will maintain the initial state when it is less than the elastic force). The second spring 2215 is in a compressed state when working, and the compression amount can be set to 5~8mm. The elastic force is relatively small during work, and can be set to 400~800N / m. Therefore, the working elastic force is less than the initial pressure of the third spring 1221, so the third spring 1221 maintains the initial non-compressed state. At this time, the pressure between the upper slide plate 110 and the lower slide plate 210 is the working pressure of the lower slide plate 210, which is only 400~800N / m during normal work.

[0076] When the lower slide plate 210 fails, the lower slide plate 210 and the lower slide groove plate 2212 are stuck and cannot be compressed. At this time, the force of the lower slide plate 210 exceeds the set initial pressure of the upper slide plate 110 (1000N / m~1500N / m), causing the upper slide plate 110 to be compressed to maintain normal operation. At this time, the working pressure between the upper slide plate 110 and the lower slide plate 210 increases. At this time, the pressure of the upper slide plate 110 can reach (1500~3000N / m), and the pressure is controllable.

[0077] When the upper slide plate 110 fails, such as the upper slide plate 110 is stuck or the third spring 1221 fails, if the third spring 1221 is maintained in the initial state, normal operation will not be affected. If the third spring 1221 is stuck in the compressed state, the compression distance of the lower slide plate 210 is reduced accordingly, and normal operation can also be performed.

[0078] Furthermore, in combination with the position display member 250, the present application also illustrates a specific fault detection method: during normal operation, the lower slide plate 210 of the lower slideway sealing device has a normal compression distance S, and the position display member 250 is located in the middle and upper part of the long waist hole 2219, such as Fig.10 When the machine is not working properly, the position display member 250 is located at the lower part or the upper part of the long waist hole 2219, such as Fig. 9 or Fig.11 .

[0079] Appear Fig. 9There may be two situations: 1. The upper slide 110 is stuck in the compressed state while the lower slide 210 is normally uncompressed; 2. The lower slide 210 is stuck, causing the upper slide to be compressed. If the position display part 250 is at the upper part of the long waist hole 2219 when each sintering machine trolley 30 passes through the position display part 250 of the lower slide 210, it means that the lower slide 210 is stuck. If the position display part 250 is at the upper part of the long waist hole 2219 when only a certain sintering machine trolley 30 passes through the position display part 250 of the lower slide 210, it means that there is a problem with the upper slide 110 of a certain sintering machine trolley 30.

[0080] Appear Fig.11 In the case of the upper slideway starting position limitation, the lower slideway 210 may be stuck or the spring may fail.

[0081] Further, the upper elastic sealing mechanism 10 also includes a C-shaped upper sealing member 170, the upper sealing member 170 is arranged in the first chamber 130, the opening of the upper sealing member 170 is arranged toward the first pin shaft, the upper sealing member 170 extends along the length direction of the sintering machine trolley 30, and the upper sealing member 170 includes a first end 171 and a second end 172 arranged opposite to each other, the first end 171 is sealed and fixedly connected to the upper slide plate 1211, and the second end 172 is sealed and fixedly connected to the upper slide plate 110;

[0082] The lower elastic sealing mechanism 20 also includes a C-shaped lower seal 260, which is arranged in the second chamber 230. The opening of the lower seal 260 is arranged toward the second pin shaft. The lower seal 260 extends along the length direction of the sintering machine trolley 30. The lower seal 260 includes a third end 261 and a fourth end 262 that are relatively arranged; the third end 261 is sealed and fixedly connected to the lower slide plate 210, and the fourth end 262 is sealed and fixedly connected to the groove of the lower slide plate 210.

[0083] It should be noted that the upper seal 170 and the lower seal 260 can use stainless steel cloth to perform sealing. The upper seal 170 can ensure that there is no air leakage between the upper slide plate 1211 and the upper slide plate 110, and the lower seal 260 can ensure that there is no air leakage between the lower slide plate 210 and the lower slide plate 2212. At the same time, it can also have a certain deformation ability. In other words, the upper seal 170 can deform to a certain extent following the movement of the upper slide plate 110, and the lower seal 260 can deform to a certain extent following the movement of the lower slide plate 210, and can still ensure a good sealing effect, reduce the air leakage rate, and reduce the power consumption of the drive motor.

[0084] As another preferred embodiment, the lower elastic sealing mechanism 20 also includes a lubricating oil pipe 270; an oil storage tank 212 extending along the length direction of the sintering machine trolley 30 is provided at the top of the lower slide plate 210, and a first oil pipe mounting hole 213 for connecting the oil storage tank 212 is formed downward in the middle of the oil storage tank 212, and a second oil pipe mounting hole 2218 corresponding to the first oil pipe mounting hole 213 is provided on the lower slide trough plate 2212, and the second oil pipe mounting hole 2218 vertically penetrates the lower slide trough plate 2212; a second internal thread section is formed on the hole wall of the first oil pipe mounting hole 213, and the lubricating oil pipe 270 is made of a hose material, and a third external thread section matching the second internal thread section is formed on the top of the lubricating oil pipe 270, and a joint for connecting to the centralized lubrication system of the sintering machine is reserved at the bottom of the lubricating oil pipe 270, and the lubricating oil pipe 270 is installed at the first oil pipe mounting hole 213 through the third external thread and the second internal thread.

[0085] When in use, the bottom of the lubricating oil pipe 270 is connected to the centralized lubrication system of the sintering machine (not shown in the figure), and oil is supplied regularly. The lubricating oil pipe 270 passes through the second oil pipe mounting hole 2218 and the first oil pipe mounting hole 213 to reach the oil storage tank 212, thereby lubricating the upper slide plate 110 and the lower slide plate 210, further reducing the running resistance of the sintering machine trolley 30. It should be noted that since the lower slide plate 210 needs to move vertically, the lubricating oil pipe 270 in this embodiment is preferably made of a hose material, and moves downward with the lower slide plate 210 during operation. In addition, the threaded connection method can adjust the installation position, and is easy to disassemble and install, and the installation is stable and reliable.

[0086] Further, the first rod body 1222 is a first pin shaft, and the first fixing ring 1223 is a tightening nut; wherein, the third spring 1221 is sleeved on the outer surface of the first pin shaft, and the top of the first pin shaft is formed with a first external thread section matching the tightening nut, and the first pin shaft is connected to the tightening nut by passing through the second connecting hole 111 and the first connecting hole 1212 to adjust the third spring 1221 to a pre-tightened initial state. It can be understood that, through the threaded connection, on the one hand, the stability of the connection can be improved, and on the other hand, by adopting the threaded connection method, the pre-tightening force of the third spring 1221 can be adjusted by adjusting the meshing position between the first external thread section and the tightening nut.

[0087] The second rod body 2216 is a second pin shaft, a second external thread section is formed on the top of the second pin shaft, and a first internal thread section matching the second external thread section is formed on the wall of the third connection hole 211, wherein the second pin shaft is threadedly connected with the lower slide plate 210 by passing through the fourth connection hole 2214 and the third connection hole 211, so as to adjust the second spring 2215 to the initial state of pre-tightening. It can be understood that, through the threaded connection, on the one hand, the stability of the connection can be improved, and on the other hand, through the threaded connection, the pre-tightening force of the second spring 2215 can be adjusted by adjusting the meshing position of the second external thread section and the first internal thread section.

[0088] The present invention also provides a belt sintering machine, comprising a sintering machine body, the sintering machine body comprising a bellows side beam 40 and a plurality of sintering machine trolleys 30 arranged in sequence around a running track, and also comprising a double elastic sealing device for a sintering machine as described above, wherein the upper elastic sealing mechanism 10 of the double elastic sealing device for a sintering machine is fixedly connected to the bottom plate of the sintering machine, and the lower elastic sealing mechanism 20 of the double elastic sealing device for a sintering machine is fixedly connected to the bellows side beam 40. The bellows side beam 40 is located below the lower elastic sealing mechanism 20.

[0089] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double elastic sealing device for a sintering machine, characterized in that: It comprises an upper elastic sealing mechanism and a lower elastic sealing mechanism arranged along the length direction of the sintering machine trolley, wherein the lower elastic sealing mechanism is correspondingly arranged directly below the upper elastic sealing mechanism; wherein, The upper elastic sealing mechanism comprises an upper slide plate and an upper elastic component; wherein the upper slide plate extends along the length direction of the sintering machine trolley, and the upper slide plate is arranged at a preset distance in parallel at the lower side of the mounting base plate of the sintering machine trolley; the upper elastic component comprises at least one first elastic member arranged at intervals along the length direction of the sintering machine trolley; the first elastic member is connected between the mounting base plate and the upper slide plate, so that the distance between the upper slide plate and the mounting base plate is adjustable; The lower elastic sealing mechanism comprises a lower slide plate and a lower elastic component; wherein the lower slide plate extends along the length direction of the sintering machine trolley, and the lower slide plate is arranged above the bellows side beam of the sintering machine in parallel and at a preset distance; the lower slide plate abuts against the upper slide plate, and the upper slide plate is movably arranged relative to the lower slide plate along the length direction of the sintering machine trolley; the lower elastic component comprises at least one second elastic member arranged at intervals along the length direction of the sintering machine trolley; the second elastic member is connected between the lower slide plate and the bellows side beam of the sintering machine, so that the distance between the upper slide plate and the bellows side beam is adjustable; The lower elastic sealing mechanism further comprises at least one position display member, the position display member comprises a fixed end and a free end which are arranged opposite to each other, the fixed end is fixedly connected to the second elastic member, and the free end extends outward from the fixed end and is cantilevered from the lower slide plate; The second elastic member includes a lower groove plate and a second spring; the lower groove plate is fixed to the upper part of the bellows side beam, and the lower groove plate is arranged below the lower slide plate in parallel and at a preset distance; the top of the second spring is connected to the bottom surface of the lower slide plate, and the bottom of the second spring is connected to the top surface of the lower groove plate; The cross section of the lower chute plate is in the shape of a groove with an opening upward, and the cross section of the lower slide plate is in the shape of a groove with an opening downward; the width of the groove of the lower slide plate is greater than the width of the groove of the lower chute plate; The side plate of the lower slide plate is provided with a mounting hole for mounting the position display member, the side plate of the lower slide plate is provided with a long waist hole for the position display member to move vertically, the fixed end of the position display member is installed in the mounting hole, and the free end is cantilevered from the fixed end to the outside through the long waist hole; When the lower slide plate is working normally, it has a normal compression distance S, and the position indicator is in the middle and upper part of the long waist hole; when the position indicator is not working normally, it is in the lower or upper part of the long waist hole; When the position display is at the lower part of the long waist hole, the upper slide is stuck in the compressed state and the lower slide is not compressed normally, or the lower slide is stuck and the upper slide is compressed; if the position display is at the upper part of the long waist hole when each sintering machine trolley passes by the display of the lower slide position, it means that the lower slide is stuck; if the position display is at the upper part of the long waist hole when only one sintering machine trolley passes by the position display of the lower slide, it means that there is a problem with the upper slide of the sintering machine trolley; When the position indicator is at the lower part of the long waist hole, it means that the slideway is stuck or the spring fails.

2. The double elastic sealing device for sintering machine according to claim 1, characterized in that: The first elastic member includes an upper slide groove plate and a first spring; wherein, the upper slide groove plate is fixed to the lower side of the mounting base plate, and the upper slide groove plate is arranged above the upper slide plate in parallel and at a preset distance; the top of the first spring is connected to the bottom surface of the upper slide groove plate, and the bottom of the first spring is connected to the top surface of the upper slide plate.

3. The double elastic sealing device for sintering machine according to claim 2, characterized in that: The upper slide groove plate and the lower slide groove plate are both channel steels with groove-shaped cross-sections. The opening of the upper slide groove plate is set toward the upper slide plate. The groove width of the upper slide groove plate is greater than the width of the upper slide plate. The upper slide groove plate and the upper slide plate together form a first chamber, and the first spring is arranged in the first chamber; the lower slide groove plate and the lower slide plate together form a second chamber, and the second spring is arranged in the second chamber.

4. The double elastic sealing device for sintering machine according to claim 3, characterized in that: The upper elastic component further comprises at least one second elastic member arranged at intervals along the length direction of the sintering machine trolley, the second elastic member being connected between the upper slide plate and the upper slide plate; the upper slide plate is provided with a first connecting hole which passes through vertically; the upper slide plate is provided with a second connecting hole corresponding to the first connecting hole; the second connecting hole is a stepped hole, and the top diameter of the second connecting hole is smaller than the bottom diameter; Among them, the second elastic member includes a third spring, a first rod body and first fixing rings respectively arranged at both ends of the first rod body; the first fixing ring is used to prevent the first rod body from escaping from the first connecting hole and the second connecting hole, the first rod body is slidably arranged relative to at least one of the first connecting hole and the second connecting hole, and the third spring is sleeved on the outer surface of the first rod body and abuts between the upper sliding groove plate and the upper sliding plate.

5. The double elastic sealing device for sintering machine according to claim 4, characterized in that: The lower elastic component further includes a second rod body and a second fixing ring disposed at the bottom end of the second rod body; the lower slide plate is provided with a third connecting hole which passes through vertically; the lower slide groove plate is provided with a positioning column protruding upward at a position corresponding to the third connecting hole, and a fourth connecting hole corresponding to the third connecting hole is formed on the positioning column; Among them, the fourth connecting hole is a stepped hole, and the top diameter of the fourth connecting hole is smaller than the bottom diameter; the second fixing ring is used to prevent the second rod body from escaping from the third connecting hole and the fourth connecting hole, the second rod body is slidably arranged relative to the fourth connecting hole, and the second spring is arranged on the outer surface of the positioning column and is supported between the lower sliding groove plate and the lower sliding plate.

6. The double elastic sealing device for sintering machine according to claim 5, characterized in that: The upper elastic sealing mechanism also includes a C-shaped upper sealing member, the upper sealing member is arranged in the first chamber, the opening of the upper sealing member is arranged toward the first rod body, the upper sealing member extends along the length direction of the sintering machine trolley, and the upper sealing member includes a first end and a second end that are arranged opposite to each other, the first end is sealed and fixedly connected to the upper slide plate, and the second end is sealed and fixedly connected to the upper slide plate; The lower elastic sealing mechanism also includes a C-shaped lower sealing member, which is arranged in the second chamber. The opening of the lower sealing member is arranged toward the second rod body. The lower sealing member extends along the length direction of the sintering machine trolley, and the lower sealing member includes a third end and a fourth end that are relatively arranged; the third end is sealed and fixedly connected to the lower slide plate, and the fourth end is sealed and fixedly connected to the lower slide groove plate.

7. The double elastic sealing device for sintering machine according to claim 2, characterized in that: The lower elastic sealing mechanism also includes a lubricating oil pipe; an oil storage tank extending along the length direction of the sintering machine trolley is provided on the top of the lower slide plate, and a first oil pipe mounting hole for the oil pipe connected to the oil storage tank is formed downwardly in the middle of the oil storage tank, and a second oil pipe mounting hole corresponding to the first oil pipe mounting hole is provided on the lower slide trough plate, and the second oil pipe mounting hole vertically penetrates the lower slide trough plate; a second internal thread section is formed on the hole wall of the first oil pipe mounting hole, and the lubricating oil pipe is made of a hose material, and a third external thread section matching the second internal thread section is formed on the top of the lubricating oil pipe, and a joint for connecting to the centralized lubrication system of the sintering machine is reserved at the bottom of the lubricating oil pipe, and the lubricating oil pipe is installed at the first oil pipe mounting hole through the third external thread and the second internal thread.

8. The double elastic sealing device for sintering machine according to claim 5, characterized in that: The first rod body is a first pin shaft, and the first fixing ring is a tightening nut; wherein the third spring is sleeved on the outer surface of the first pin shaft, and a first external thread section matching the tightening nut is formed on the top of the first pin shaft, and the first pin shaft is connected to the tightening nut by passing through the second connecting hole and the first connecting hole, so as to adjust the third spring to a pre-tightened initial state; The second rod body is a second pin shaft, a second external thread section is formed on the top of the second pin shaft, and a first internal thread section matching the second external thread section is formed on the wall of the third connecting hole, wherein the second pin shaft is threadedly connected to the lower slide plate by passing through the fourth connecting hole and the third connecting hole to adjust the second spring to a pre-tightened initial state.

9. A belt sintering machine, comprising a sintering machine body, wherein the sintering machine body comprises a wind box side beam and a plurality of sintering machine trolleys arranged in sequence around a running track, characterized in that: It also includes a double elastic sealing device for a sintering machine as described in any one of claims 1 to 8, wherein the upper elastic sealing mechanism of the double elastic sealing device for a sintering machine is fixedly connected to the bottom plate of the sintering machine, and the lower elastic sealing mechanism of the double elastic sealing device for a sintering machine is fixedly connected to the side beam of the bellows.

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