Torpedo ladle and torpedo tank car

Abstract

The utility model discloses a torpedo ladle and a torpedo tank car, and belongs to the technical field of molten iron transportation equipment. The torpedo tank comprises a tank body, a protective lining plate and a supporting piece. The tank body is provided with a storage cavity for storing molten iron and a tank opening communicated with the storage cavity; the protective lining plate is sleeved outside the tank opening; the supporting piece is fixedly connected to the tank body, the protective lining plate is supported on the supporting piece, a heat dissipation gap is formed between the protective lining plate and the tank body under the action of the supporting piece, and the protective lining plate is fixedly connected to the supporting piece and / or the tank body. The protective lining plate is arranged outside the tank opening in a sleeving mode, so that when molten iron is poured, iron flowing to the outer side of the tank body falls on the protective lining plate and does not directly fall on the tank body, the problem that a steel plate around the tank opening is corroded by heat radiation and impurities of the outflow molten iron is solved to a certain degree, and the service life of the tank body is prolonged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of molten iron transportation equipment, and particularly relates to a torpedo ladle and a torpedo ladle car. BACKGROUND

[0002] The torpedo ladle car is widely used in the work of transporting molten iron in a steel plant and pouring molten iron into other equipment. The ladle body is a container for containing molten iron, is in the shape of a torpedo, and has a middle part welded from a steel plate and two ends welded with cast trunnions. The ladle body has a cast steel ladle opening above the middle part, which is used to receive and pour out molten iron.

[0003] Before use, the user builds refractory material in the ladle to protect the ladle body. The ladle body works in a high-temperature and heavy-load working condition for a long time, and its strength and rigidity are greatly affected. Therefore, when molten iron is poured into the torpedo ladle car, it often flows to the outside of the ladle body, causing the steel around the ladle opening to be corroded by heat radiation and impurities, and finally causing the torpedo ladle to be scrapped as a whole. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve the technical problem that the steel around the ladle opening of the torpedo ladle is easily corroded by heat radiation and impurities in the related art. To this end, the present application provides a torpedo ladle and a torpedo ladle car.

[0005] In a first aspect, an embodiment of the present application provides a torpedo ladle, comprising:

[0006] a ladle body having a storage cavity for storing molten iron and a ladle opening in communication with the storage cavity;

[0007] a protective lining plate sleeved outside the ladle opening;

[0008] a support fixedly connected to the ladle body, the protective lining plate being supported on the support, and a heat dissipation gap being formed between the protective lining plate and the ladle body under the action of the support, the protective lining plate being fixedly connected to the support and / or the ladle body.

[0009] In some embodiments, at least part of the support penetrates and protrudes from the protective lining plate, and a part of the support protruding from the protective lining plate is provided with a insertion hole; the torpedo ladle further comprises a wedge, which is inserted into the insertion hole to fixedly connect the protective lining plate and the support.

[0010] In some embodiments, the support comprises a support part and a plurality of connection parts fixedly and spacedly arranged on the support part, the support part being fixedly connected to the ladle body, the protective lining plate being supported on the support part, the connection parts penetrating and protruding from the protective lining plate, and the insertion hole being formed in the connection part.

[0011] In some embodiments, the torpedo tank further comprises a backing plate sleeved outside the connecting portion, the protective lining is located between the supporting portion and the backing plate, the backing plate is located between the wedge and the protective lining, the backing plate is fixedly connected with the protective lining, and the wedge is fixedly connected with the backing plate.

[0012] In some embodiments, the torpedo tank further comprises a baffle sleeved outside the protective lining and fixedly connected with the protective lining, the baffle and the protective lining enclose a containing groove; and the torpedo car further comprises a refractory cement layer fixedly arranged in the containing groove, the protective lining is provided with a avoiding hole avoiding the tank opening, so that the protective lining can be sleeved outside the tank opening.

[0013] In some embodiments, the protective lining is full-welded along the edge of the avoiding hole and the tank body.

[0014] In some embodiments, the protective lining comprises a plurality of protective plates, and adjacent two protective plates are fixedly welded.

[0015] In some embodiments, the protective lining further comprises a plurality of connecting plates, and the connecting plates are welded to adjacent two protective plates.

[0016] In some embodiments, the value of the heat dissipation gap is 15-25mm.

[0017] In the second aspect, the embodiments of the present application provide a torpedo tank car, comprising: a car body and the torpedo tank of the first aspect.

[0018] The utility model at least has the following advantages:

[0019] The torpedo tank comprises a tank body, a protective lining and a supporting piece. The tank body has a storage cavity for storing molten iron and a tank opening communicating with the storage cavity; the protective lining is sleeved outside the tank opening; the supporting piece is fixedly connected to the tank body, and the protective lining is supported on the supporting piece and has a heat dissipation gap between the protective lining and the tank body under the action of the supporting piece; and the protective lining is fixedly connected to the supporting piece and / or the tank body.

[0020] By sleeving the protective lining outside the tank opening, when pouring the molten iron, the iron flowing to the outside of the tank body falls on the protective lining instead of directly falling on the tank body, which slows down the problem of the steel plate around the tank opening being corroded by the heat radiation and impurities of the outflowing molten iron to a certain extent, helps to prolong the service life of the tank body. The protective lining and the tank body have a heat dissipation gap under the action of the supporting piece, so that the heat around the tank opening can be quickly dissipated, the influence of the protective lining on the heat dissipation of the steel plate around the tank opening is reduced, the problem of the steel plate around the tank opening being corroded for a long time in a high-temperature state due to the delayed heat dissipation is slowed down, which helps to prolong the service life of the tank body, and further ensures the service life of the torpedo tank. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A front view of the torpedo canister is shown in one or more embodiments of this application.

[0023] Figure 2 It shows along Figure 1 A cross-sectional view along the AA direction.

[0024] Figure 3 It shows Figure 2 Enlarged view of section B in the middle.

[0025] Figure 4 The image shows a front view of the torpedo tank after the refractory water layer has been concealed in one or more embodiments of this application.

[0026] Figure 5 A top view of the torpedo canister after concealing the refractory water layer is shown in one or more embodiments of this application.

[0027] Figure 6 It shows Figure 5 Enlarged view of point C.

[0028] Figure 7 A side view of the torpedo tank after concealing the refractory water layer and the baffle is shown in one or more embodiments of this application.

[0029] Figure 8 The illustration shows a side view of the torpedo tank after concealing the refractory water layer, sidewalls, protective lining, wedges, and pads in one or more embodiments of this application.

[0030] Figure 9 It shows Figure 8 Enlarged view of point D in the middle.

[0031] Figure 10 A front view of a torpedo tanker car is shown in one or more embodiments of this application.

[0032] 100 - torpedo tank, 110 - tank body, 110a - storage cavity, 110b - tank opening, 120 - protective lining, 120a - containing groove, 121 - protective plate, 122 - connecting plate, 120b - avoiding hole, 130 - support, 130a - insertion hole, 131 - supporting part, 132 - connecting part, 140 - wedge, 150 - backing plate, 160 - baffle, 170 - refractory cement layer, 200 - vehicle body, 1000 - torpedo tank car. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly. In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0035] In the related art, the torpedo tank has the technical problem that the steel around the tank opening is easily corroded by heat radiation and impurities. The embodiments of the present application provide a torpedo tank and a torpedo tank car, which can at least solve the technical problem that the steel around the tank opening of the torpedo tank is easily corroded by heat radiation and impurities.

[0036] The application will be described below with reference to the accompanying drawings and specific embodiments:

[0037] As shown in the drawings, the torpedo tank 100 comprises a tank body 110, a protective lining 120 and a support 130. Figures 1 to 9

[0038] The tank body 110 has a storage cavity 110a for storing molten iron and a tank opening 110b in communication with the storage cavity 110a.

[0039] The storage cavity 110a is used to hold molten iron, and the tank body 110 can be formed by welding a plurality of steel plates. Refractory materials can be built on the inner wall of the tank body 110 to protect the tank body 110, which is not limited in the present application. The tank opening 110b is in communication with the storage cavity 110a, and the molten iron is poured into the storage cavity 110a through the tank opening 110b. The molten iron in the storage cavity 110a is poured out through the tank opening 110b.

[0040] The protective lining 120 is sleeved on the outside of the tank opening 110b.

[0041] By sleeving the protective lining 120 on the outside of the tank opening 110b, when pouring molten iron, the iron flowing to the outside of the tank body 110 falls on the protective lining 120, rather than directly on the tank body 110, which to some extent slows down the problem of heat radiation and impurity corrosion of the steel plate around the tank opening 110b, helping to prolong the service life of the tank body 110. The protective lining 120 requires a certain heat resistance, which can withstand the high temperature and corrosion of the molten iron. The material of the protective lining 120 can be steel, iron or other metal materials. Of course, the protective lining 120 can also use high-temperature-resistant ceramic or other non-metallic materials, which is not limited in the present application. In some embodiments, the protective lining 120 is a steel plate.

[0042] The support 130 is fixedly connected to the tank body 110, and the protective lining 120 is supported on the support 130. Under the action of the support 130, the protective lining 120 has a heat dissipation gap with the tank body 110. The protective lining 120 is fixedly connected to the support 130 and / or the tank body 110.

[0043] The support 130 and the tank body 110 can be fixedly connected by bolt connection, welding, clamping or other methods, which is not limited in the present application. The protective lining 120 can be fixedly connected with the support 130, or fixedly connected with the tank body 110, or fixedly connected with both the support 130 and the tank body 110, which is not limited in the present application. The protective lining 120 is supported on the support 130, and the support 130 supports the protective lining 120, so that the protective lining 120 has a certain distance from the outer wall of the tank body 110, which is a heat dissipation gap, as shown in the drawings. Figure 3 ​As shown, that is, under the action of the support 130, the protective lining 120 and the tank body 110 are spaced apart, and the heat on the tank body 110 can be quickly discharged through the gap between the protective lining 120 and the tank body 110, reducing the influence of the setting of the protective lining 120 on the heat dissipation of the steel plate around the tank opening 110b, delaying the corrosion problem of the steel plate around the tank opening 110b due to long-term high-temperature state because of the heat dissipation not in time, helping to prolong the service life of the tank body 110, and thus ensuring the service life of the torpedo tank 100.

[0044] In summary, through the setting of the protective lining 120, the torpedo tank 100 slows down the problem of the steel plate around the tank opening 110b being corroded by the heat radiation of the flowing molten iron and impurities, and through the setting of the heat dissipation gap, the influence of the setting of the protective lining 120 on the heat dissipation of the steel plate around the tank opening 110b is reduced, and the problem of the steel plate around the tank opening 110b being corroded because of long-term high-temperature state due to the heat dissipation not in time is delayed.

[0045] As shown in Figure 6 and Figure 9 In some embodiments, at least part of the support 130 penetrates and protrudes from the protective lining 120, and the part of the support 130 protruding from the protective lining 120 is provided with a insertion hole 130a; the torpedo tank 100 further comprises a wedge 140, which is inserted into the insertion hole 130a to fixedly connect the protective lining 120 and the support 130.

[0046] The protective lining 120 is provided with a through hole, and the support 130 protrudes from the protective lining 120 through the through hole and is exposed to the outside. The part of the support 130 protruding from the protective lining 120 is provided with an insertion hole 130a, and the wedge 140 is inserted into the hole, so that the protective lining 120 is limited between the wedge 140 and the support 130. Under the action of the wedge 140, the protective lining 120 is fixedly connected with the support 130. As shown in Figure 6 , part of the wedge 140 is located in the through hole, and at least part of the wedge 140 is located outside the through hole. The part of the wedge 140 located outside the through hole limits the protective lining 120, and the part of the wedge 140 located outside the through hole is located on the path when the protective lining 120 is separated from the support plate, so that the protective lining 120 is blocked by the wedge 140 during the process of separating the protective lining 120 from the support plate. If the protective lining 120 is to be removed, the wedge 140 needs to be removed from the support 130 first, and then the protective lining 120 is removed.

[0047] As shown in Figure 9As shown, in some embodiments, the support 130 comprises a support portion 131 and a plurality of connecting portions 132 fixed and spaced on the support portion 131, the support portion 131 is fixedly connected to the tank body 110, the protective lining plate 120 is supported on the support portion 131, the connecting portion 132 penetrates and protrudes from the protective plate 121, and a hole 130a is formed on the connecting portion 132. In this way, the support portion 131 is used to support the protective lining plate 120, and the connecting portion 132 is used to penetrate the protective lining plate 120 and connect with the wedge 140.

[0048] As shown in Figure 8 , in some embodiments, a plurality of supports 130 are provided, the support portions 131 of the supports 130 are arranged along the axis of the tank body 110, that is, the length direction of the support portion 131 is parallel to the axis of the tank body 110, and the plurality of connecting portions 132 on the support portion 131 are sequentially arranged along the length direction of the support portion 131.

[0049] As shown in Figure 5 and Figure 6 , in some embodiments, the torpedo tank 100 further comprises a backing plate 150, the backing plate 150 is sleeved outside the connecting portion 132, the protective lining plate 120 is located between the support portion 131 and the backing plate 150, the backing plate 150 is located between the wedge 140 and the protective lining plate 120, the backing plate 150 is fixedly connected with the protective lining plate 120, and the wedge 140 is fixedly connected with the backing plate 150.

[0050] Through the arrangement of the backing plate 150, the area of the through hole formed on the protective lining plate 120 can be reinforced to ensure the structural strength of the protective lining plate 120. In addition, after the backing plate 150 is arranged, the backing plate 150 can fill the gap between the protective lining plate 120 and the wedge 140, and can reduce the shaking amplitude of the protective lining plate 120, thereby ensuring the stability of the protective lining plate 120 during transportation of the torpedo tank 100. The fixed connection between the wedge 140 and the backing plate 150 ensures that the wedge 140 will not be separated from the support 130 due to road surface vibration and other reasons during the use of the torpedo tank 100, which helps to ensure that the protective lining plate 120 is firmly fixed on the pipe body and ensures the safety of transportation.

[0051] In some embodiments, the protective lining plate 120 and the backing plate 150 are both formed by cutting a steel plate, and the protective lining plate 120 and the backing plate 150 are fixedly connected by welding. The wedge 140 and the backing plate 150 are fixedly connected by spot welding.

[0052] As shown in Figure 1 , Figure 2 and Figure 3As shown, in some embodiments, the torpedo ladle 100 further comprises a baffle 160 which is arranged outside the protective lining 120 and fixedly connected with the protective lining 120, and the baffle 160 and the protective lining 120 jointly form a containing groove 120a; the torpedo ladle car 1000 further comprises a layer of refractory cement 170 which is fixedly arranged in the containing groove 120a.

[0053] The baffle 160 is arranged along the edge of the protective lining 120, and the baffle 160 and the protective lining 120 are fixedly connected. In some embodiments, the baffle 160 is an angle steel, and the baffle 160 is fixedly welded with the protective lining 120. After the baffle is fixed with the protective lining 120, a containing groove 120a is formed, which is used to contain the refractory cement. When the refractory cement is solidified, it is fixedly bonded in the containing groove 120a, forming a layer of refractory cement 170. In order to ensure the bonding strength of the refractory cement and the containing groove 120a, a plurality of anchors can be fixedly arranged on the protective lining 120. When the refractory cement is applied to the containing groove 120a, the anchors can be embedded in the cement, thereby effectively preventing the cement from separating or falling off from the protective lining 120. The structure of the anchors is various and known to those skilled in the art, and will not be described here.

[0054] In some embodiments, the protective lining 120 is provided with a relief hole 120b which avoids the ladle opening 110b, so that the protective lining 120 can be arranged outside the ladle opening 110b, and the edge of the protective lining 120 along the relief hole 120b is fully welded with the ladle body 110.

[0055] The protective lining 120 cannot shield the ladle opening 110b, and the protective lining 120 avoids the ladle opening 110b through the relief hole 120b thereon. The edge of the protective lining 120 along the relief hole 120b is fully welded with the ladle body 110, that is, the edge of the relief hole 120b of the protective lining 120 is welded with the ladle body 110 at all places. The protective lining 120 is fixedly connected with the ladle body 110 by full welding, and the full welding can make the relief hole 120b be in airtight connection with the ladle body 110, which can prevent molten iron from leaking into the heat dissipation gap and contacting the ladle body 110, thereby preventing the corrosion of the ladle body 110 and ensuring the service life of the ladle body 110.

[0056] In some embodiments, the protective lining 120 comprises a plurality of protective plates 121 which are fixedly welded. The middle region of the ladle body 110 is in a cylindrical shape, and the two end regions are in a conical shape. The shape of the protective lining 120 should be adapted to the shape of the ladle body 110. In these embodiments, the protective lining 120 is formed by fixedly splicing a plurality of protective plates 121, which can facilitate the forming of the protective lining 120 and reduce the difficulty of processing the protective lining 120.

[0057] In some embodiments, the protective lining 120 further comprises a plurality of connecting plates 122, which are welded to two adjacent protective plates 121. That is, the connecting plate 122 is welded to one of the two adjacent protective plates 121 and to the other. The provision of the connecting plate 122 strengthens the connection between the two adjacent protective plates 121, thereby ensuring the strength of the protective lining 120.

[0058] In some embodiments, the value of the heat dissipation gap is 15-25 mm.

[0059] The following describes the method for manufacturing the torpedo tank 100:

[0060] First, the protective lining 120 is prepared by welding a plurality of protective plates 121 and a plurality of connecting plates 122;

[0061] Next, the support 130 is welded to the outer wall of the tank body 110;

[0062] Next, the protective lining 120 is hoisted above the support 130, and the through hole on the protective lining 120 is aligned with the lining;

[0063] Next, the hoisting device is lowered, causing the protective lining 120 to move downward, the support 130 to pass through the through hole, and the protective lining 120 to be supported on the support 130;

[0064] Next, the gasket 150 is fitted around each support 130, and the gasket 150 is welded and fixed to the protective lining 120;

[0065] Next, the wedge iron 140 is inserted into the insertion hole 130a on the support 130;

[0066] Next, the wedge iron 140 is welded and fixed to the gasket 150;

[0067] Next, the flange 160 is welded to the edge of the protective lining 120, and the edge of the escape hole 120b is fully welded to the tank body 110;

[0068] Next, the refractory cement is poured into the accommodating groove 120a formed by the flange 160 and the protective lining 120, and the cement is smoothed by a tool. After the cement solidifies, the refractory cement layer 170 is obtained, and thus the torpedo tank 100 is manufactured.

[0069] The following describes the method for disassembling the protective lining 120 from the tank body 110:

[0070] First, the refractory cement layer 170 on the surface of the protective lining 120 is removed;

[0071] Next, the spot welding between the wedge iron 140 and the gasket 150 is cut;

[0072] Then, the full welding between the protective lining 120 and the tank body 110 is cut;

[0073] Then, the protective lining 120 is hoisted by the lifting device, and the dismounting of the protective lining 120 is completed.

[0074] Based on the same inventive concept, the embodiment of the present application further provides a torpedo ladle car 1000, comprising a car body 200 and the torpedo ladle 100 described above, and the torpedo ladle 100 is installed on the car body 200.

[0075] The car body 200 comprises wheels, an engine, a support frame and the like, and the structure of the car body 200 is various and known to those skilled in the art, which is not limited in the present application. The car body 200 supports and transports the torpedo ladle 100 located thereon, and transports the molten iron in the torpedo ladle 100 to a designated position. Since the torpedo ladle car 1000 comprises the torpedo ladle 100 described above, it naturally has all the beneficial effects of the torpedo ladle 100, which will not be repeated here.

[0076] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the present specification.

[0077] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0078] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A torpedo can, characterized in that The torpedo tank (100) comprises a tank body (110) having a storage cavity (110a) for storing molten iron and a tank opening (110b) in communication with the storage cavity (110a); a protective lining (120) sleeved outside the tank opening (110b); a support (130) fixedly connected to the tank body (110), the protective lining (120) being supported on the support (130) and having a heat dissipation gap between the protective lining (120) and the tank body (110) under the action of the support (130), the protective lining (120) being fixedly connected to the support (130) and / or the tank body (110). At least part of the support (130) penetrates and protrudes from the protective lining (120), and the part of the support (130) protruding from the protective lining (120) is provided with a insertion hole (130a); the torpedo tank (100) further comprises a wedge iron (140) inserted into the insertion hole (130a) to fixedly connect the protective lining (120) and the support (130). The support (130) comprises a support part (131) and a plurality of connection parts (132) fixedly and spacedly arranged on the support part (131), the support part (131) being fixedly connected to the tank body (110), the protective lining (120) being supported on the support part (131), the protective lining (120) comprising a plurality of protective plates (121), adjacent two protective plates (121) being fixedly welded, the connection part (132) penetrating and protruding from the protective plate (121), and the insertion hole (130a) being formed in the connection part (132). The torpedo tank (100) further comprises a backing plate (150) sleeved outside the connection part (132), the protective lining (120) being located between the support part (131) and the backing plate (150), the backing plate (150) being located between the wedge iron (140) and the protective lining (120), the backing plate (150) being fixedly connected to the protective lining (120), and the wedge iron (140) being fixedly connected to the backing plate (150).

2. The torpedo can according to claim 1, characterized in that The torpedo tank (100) further comprises a flange (160) sleeved outside the protective lining (120) and fixedly connected to the protective lining (120), the flange (160) and the protective lining (120) forming a containing groove (120a); and the torpedo tank (100) further comprises a refractory cement layer (170) fixedly arranged in the containing groove (120a).

3. The torpedo can according to claim 2, characterized in that The protective lining (120) is provided with an avoiding hole (120b) avoiding the tank opening (110b) so that the protective lining (120) can be sleeved outside the tank opening (110b), and the protective lining (120) is fully welded along the edge of the avoiding hole (120b) and the tank body (110).

4. The torpedo can according to claim 3, characterized in that ​ 5. The torpedo can according to any of claims 1 - 4, characterized in that, ​ 6. The torpedo can according to any one of claims 1-4, characterized in that, ​ 7. The torpedo can according to claim 3, characterized in that The protective lining (120) further comprises a plurality of connecting plates (122) which are welded to two adjacent protective plates (121).

8. The torpedo can according to any one of claims 1-4, characterized in that, The value of the heat dissipation gap is 15-25 mm.

9. A torpedo tank car characterized by, Comprising: A vehicle body (200) and the torpedo tank (100) according to any one of claims 1-8, which is installed on the vehicle body (200).

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