Furnace tongue of calcium carbide furnace

Abstract

The utility model relates to a calcium carbide furnace tongue, which comprises a furnace tongue body and at least one group of water passing pipelines, the upper side of the furnace tongue body is provided with a blanking through groove extending along the length direction of the furnace tongue body, the middle end of each water passing pipeline is embedded in the furnace tongue body and is positioned on the lower side of the blanking through groove, and the water passing pipelines are arranged in the blanking through groove. The water inlet end and the water outlet end of each water passing pipeline extend out of the feeding end of the furnace tongue body. According to the utility model, the technical problem of flash explosion accidents caused by breakdown of a water pipeline at the root part of the conventional furnace tongue by liquid calcium carbide can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to calcium carbide furnace technical field especially relates to a calcium carbide furnace furnace tongue. BACKGROUND

[0002] The calcium carbide furnace furnace tongue is a water passing equipment for guiding liquid calcium carbide, and the molten calcium carbide after smelting is about 2000 DEG C, the molten calcium carbide flows out from the furnace eye and is guided to the calcium carbide pot through the furnace tongue, the left and right two water channels are built-in in the furnace tongue, and the circulation water reaches the cooling effect.

[0003] The water passing furnace tongue used in the field now is the left and right two sides one-in and one-out type water channel cooling mode, the left and right two water channels are built-in in the furnace tongue body with the steel pipe of phi 32 cast, the left and right two water channels extend 200mm and are used for welding the water channel on site, the water channel of the lower end root of the furnace tongue is connected and passes water through the prefabricated welding external U-shaped water passing pipeline, in the actual production operation process, the liquid calcium carbide can overflow from the root gap of the furnace tongue or the left and right sides of the furnace tongue end face, and the high-temperature liquid calcium carbide flow is on the furnace tongue water passing pipeline, which leads to the furnace tongue water passing pipeline puncture and water leakage, and the high-temperature calcium carbide meets water and causes flash explosion risk in the process of discharging operation. UTILITY MODEL CONTENT

[0004] The utility model provides a calcium carbide furnace furnace tongue in view of the technical problem that the water passing pipeline of the root of the existing furnace tongue is punctured by liquid calcium carbide and causes flash explosion accident.

[0005] The utility model solves the technical scheme of the above-mentioned technical problem as follows:

[0006] A calcium carbide furnace furnace tongue, including the furnace tongue body and at least one group of water passing pipelines, the lower blanking through groove of the upper side of the furnace tongue body is extended along its length direction, the middle end of each water passing pipeline is inlaid in the furnace tongue body, and is located at the lower side of the lower blanking through groove, and the water inlet end and the water outlet end of each water passing pipeline extend the feeding end of the furnace tongue body.

[0007] The utility model has the advantages that the water inlet end and the water outlet end of the water passing pipeline are arranged at the feeding end of the furnace tongue body, are located at the upper part of the furnace tongue body, reduce the possibility that the high-temperature calcium carbide and molten iron in the lower blanking through groove overflow from the root gap of the furnace tongue body lower end or the left and right sides of the furnace tongue end face and contact the water passing pipeline, thereby improving the technical problem that the water passing pipeline of the root of the existing furnace tongue is punctured by liquid calcium carbide and causes flash explosion accident.

[0008] On the basis of the above-mentioned technical scheme, the utility model can also be improved as follows.

[0009] Further, the groove bottom of the lower blanking through groove is inclined and extended structure, and the height of the feeding end is higher than the height of the discharging end, and the height of the water inlet end and the water outlet end of each water passing pipeline is higher than the height of the discharging end of the lower blanking through groove.

[0010] The beneficial effect of the above further scheme is that the height of the water inlet end and the water outlet end of the water pipeline extending out of the pipe section of the furnace tongue body is higher than the height of the discharging section of the discharging channel, that is, the high-temperature ferrosilicon and molten iron overflowing from the gap at the lower end of the furnace tongue body or the two sides of the end face of the furnace tongue is lower than the height of the water inlet end and the water outlet end of the water pipeline, thereby avoiding the contact between the overflowing high-temperature ferrosilicon and molten iron and the water pipeline, and causing a flash explosion accident.

[0011] Further, the outer extension pipes are fixed on both sides of the furnace tongue body in the width direction, and each outer extension pipe is sleeved on the water inlet end and the water outlet end of the water pipeline.

[0012] The beneficial effect of the above further scheme is that the protection of the water inlet end and the water outlet end of the water pipeline by the outer extension pipes reduces the possibility of the water pipeline being broken by the contact between the high-temperature ferrosilicon and molten iron overflowing from both sides of the feeding end of the furnace tongue body and the water pipeline, thereby reducing the possibility of water leakage and other safety hazards. At the same time, the support of the water inlet end and the water outlet end of the water pipeline by the outer extension pipes reduces the possibility of bending and breaking of the water inlet end and the water outlet end of the water pipeline near the furnace tongue body.

[0013] Further, the outer side of each outer extension pipe is further covered with a protective sleeve, and one end of each protective sleeve abuts against the furnace tongue body.

[0014] The beneficial effect of the above further scheme is that the secondary protection and support of the water inlet end and the water outlet end of the water pipeline by the protective sleeve.

[0015] Further, the other end of each protective sleeve is fixed with a thickened protective wall, and the inner side of the thickened protective wall abuts against the water pipeline.

[0016] The beneficial effect of the above further scheme is that the covering of the outer extension pipe by the protective sleeve and the thickened protective wall enables the outer extension pipe to effectively protect the water pipeline for a long time.

[0017] Further, each outer extension pipe is a refractory cement pipe.

[0018] The beneficial effect of the above further scheme is that the refractory cement is used to make the outer extension pipe, thereby improving the high-temperature resistance, thermal resistance, corrosion resistance, structural strength, and the simplicity of construction and maintenance of the outer extension pipe, reducing the overall cost, and meeting the environmental protection requirements.

[0019] Further, at least two groups of water pipelines are provided, and each water pipeline is arranged in a vertical direction.

[0020] The beneficial effect of the further scheme is that the cooling effect of high-temperature calcium carbide and molten iron is improved by arranging multiple water passing pipelines; meanwhile, each water passing pipeline is arranged in a vertical direction, and multiple layers of cooling effect are formed at the bottom of the high-temperature calcium carbide and molten iron; compared with the cooling mode of the cooling medium being heated at the same time, the multiple layers of water passing pipelines can form a step-by-step cooling effect, and the cooling effect is long-term effective.

[0021] Further, each water passing pipeline comprises a water inlet pipe section, a cooling pipe section and a water outlet pipe section, the water inlet end of the water inlet pipe section is located outside one side of the width direction of the furnace tongue body, and the water outlet end extends into one side of the width direction of the furnace tongue body, the cooling pipe section is embedded in the furnace tongue body, the water inlet end of the cooling pipe section is communicated with the water outlet end of the water inlet pipe section, and the water outlet end of the cooling pipe section is communicated with the water inlet end of the water outlet pipe section, and the water outlet end of the water outlet pipe section extends out of the other side of the width direction of the furnace tongue body.

[0022] The beneficial effect of the further scheme is that during use, the cooling medium is passed in from the water inlet end of the water inlet pipe section and is discharged from the flow passage of the cooling pipe section and the water outlet pipe section; during the process, the cooling medium in the cooling pipe section embedded in the furnace tongue body continuously cools the high-temperature calcium carbide and molten iron in the downcomer.

[0023] Further, each cooling pipe section comprises two first cooling sections and one second cooling section, the two first cooling sections extend along the length direction of the furnace tongue body, one end of each of the two first cooling sections is communicated with the water outlet end of the water inlet pipe section and the water inlet end of the water outlet pipe section respectively, and the other end of each of the two first cooling sections is communicated with two ends of the second cooling section respectively, and the second cooling section is located at the discharge end of the furnace tongue body.

[0024] The beneficial effect of the further scheme is that the two first cooling sections and the second cooling section extend to form a ring-shaped pipe section structure, so that the whole process of cooling the high-temperature calcium carbide and molten iron flowing in the downcomer is formed along the length direction of the furnace tongue body, and the cooling effect is improved.

[0025] Further, the two first cooling sections extend along the groove length direction of the downcomer, and the straight-line distance between each part and the downcomer is equal.

[0026] The beneficial effect of the further scheme is that the two first cooling sections and the second cooling section extend to form a ring-shaped pipe section structure, so that the whole process of cooling the high-temperature calcium carbide and molten iron flowing in the downcomer is formed along the length direction of the furnace tongue body, and the cooling effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural view of the calcium carbide furnace tongue of the utility model;

[0028] Figure 2 is an exploded view of the calcium carbide furnace tongue of the utility model;

[0029] Figure 3 is a first partial sectional view of the calcium carbide furnace tongue of the utility model;

[0030] Figure 4 is a second partial sectional view of the calcium carbide furnace tongue of the utility model;

[0031] Figure 5 is a structural diagram of the related art.

[0032] In the drawings, the components represented by each reference numeral are listed as follows:

[0033] 1, furnace tongue body; 11, blanking through slot;

[0034] 2, water passage; 21, water inlet pipe section; 22, cooling pipe section; 221, first cooling section; 222, second cooling section; 23, water outlet pipe section;

[0035] 3, outer extension pipe;

[0036] 4, protective sleeve; 41, thickened protective wall. DETAILED DESCRIPTION

[0037] The principles and features of the utility model will be described below in combination with the drawings, and the examples are only used to explain the utility model and not to limit the scope of the utility model.

[0038] Example 1

[0039] As Figure 1 and Figure 2 , a calcium carbide furnace tongue, comprising a furnace tongue body 1 and at least one set of water passages 2, the upper side of the furnace tongue body 1 is provided with a blanking through slot 11 extending along the length direction thereof, the middle end of each water passage 2 is embedded in the furnace tongue body 1 and is located at the lower side of the blanking through slot 11, and the water inlet end and the water outlet end of each water passage 2 extend out of the feeding end of the furnace tongue body 1.

[0040] The beneficial effects of the embodiment are that the water inlet end and the water outlet end of the water passage 2 are arranged at the feeding end of the furnace tongue body 1 and are located at the upper part of the furnace tongue body 1, so that the possibility of the high-temperature calcium carbide and molten iron in the blanking through slot 11 overflowing from the gap at the lower end of the furnace tongue body 1 (such as Figure 5 ) or the two sides of the furnace tongue end face and contacting the water passage 2 is reduced, thereby improving the technical problem that the existing water passage at the root of the furnace tongue is broken by liquid calcium carbide and causes a flash explosion accident.

[0041] The feeding channel 11 is bent and extends from the feeding end to the discharging end of the furnace tongue body 1, and the cross section of the feeding channel 11 is in an arc shape, that is, the bottom of the channel is an arc surface, so as to avoid stress concentration area.

[0042] The depth of the feeding end of the feeding channel 11 is greater than that of the discharging end, so as to ensure that the high-temperature liquid calcium flowing out of the furnace eye is fully introduced into the feeding channel 11; the depth of the discharging end of the feeding channel 11 is lower than that of the feeding end and is in an open state, so as to ensure that the liquid calcium flowing out of the discharging end of the feeding channel 11 is in a spread state, thereby reducing the impact force when the liquid calcium flows into the calcium pot and ensuring the safety of the flow.

[0043] Embodiment 2

[0044] As Figure 1 and Figure 2 On the basis of embodiment 1, the bottom of the feeding channel 11 is in an inclined extension structure, and the height of the feeding end is higher than that of the discharging end; the height of the water inlet end and the water outlet end of each water pipeline 2 is higher than that of the discharging end of the feeding channel 11.

[0045] The height of the water inlet end and the water outlet end of the water pipeline 2 extending out of the pipe section of the furnace tongue body 1 is higher than the height of the discharging section of the feeding channel 11, that is, the height of the high-temperature calcium and molten iron overflowing from the gap at the lower end of the furnace tongue body 1 or the two sides of the end surface of the furnace tongue is lower than the height of the water inlet end and the water outlet end of the water pipeline 2, so as to avoid the overflowing high-temperature calcium and molten iron contacting the water pipeline 2 and causing flash explosion accident.

[0046] The feeding end of the feeding channel 11 and the feeding end of the furnace tongue body 1 refer to the same end.

[0047] Embodiment 3

[0048] As Figures 2 to 4 On the basis of embodiments 1 and 2, the two sides of the furnace tongue body 1 in the width direction are each fixed with an extension pipe 3, and each extension pipe 3 is sleeved with the water inlet end and the water outlet end of the water pipeline 2.

[0049] The beneficial effect of the preferred scheme in the above embodiments is that the extension pipe 3 forms a protective effect on the water inlet end and the water outlet end of the water pipeline 2, reduces the possibility that the high-temperature calcium and molten iron overflowing from the two sides of the feeding end of the furnace tongue body 1 contacts the water pipeline 2 and causes the water pipeline 2 to be broken, thereby reducing the safety hidden danger of water leakage; at the same time, the extension pipe 3 forms a supporting effect on the water inlet end and the water outlet end of the water pipeline 2, thereby reducing the possibility that the water inlet end and the water outlet end of the water pipeline 2 are bent and broken near the furnace tongue body 1.

[0050] The thickness of the extension pipe 3 is 5-15 mm.

[0051] Embodiment 4

[0052] As Figures 2 to 4 On the basis of Embodiments 1-3, the outer side of each epitaxial tube 3 is further covered with a protective sleeve 4, and one end of each protective sleeve 4 abuts against the burner tongue body 1.

[0053] The beneficial effect of the preferred scheme in the above embodiment is that the outer side of each epitaxial tube 3 is further covered with a protective sleeve 4, and one end of each protective sleeve 4 abuts against the burner tongue body 1.

[0054] Among them, the thickness of the protective sleeve 4 is 5-15mm.

[0055] Embodiment 5

[0056] As Figures 2 to 4 On the basis of Embodiments 1-4, the other end of each protective sleeve 4 is fixed with a thickened protective wall 41, and the inner side of the thickened protective wall 41 abuts against the water passage 2.

[0057] The beneficial effect of the preferred scheme in the above embodiment is that the protective sleeve 4 and the thickened protective wall 41 form a covering effect on the epitaxial tube 3, so that the epitaxial tube 3 forms a long-term effective protective effect on the water passage 2.

[0058] Among them, the rear end of the thickened protective wall 41 is greater than the thickness of the protective sleeve 4.

[0059] Embodiment 6

[0060] On the basis of Embodiments 1-5, each epitaxial tube 3 is a refractory cement tube.

[0061] The beneficial effect of the preferred scheme in the above embodiment is that the epitaxial tube 3 is made of refractory cement, which improves its high-temperature resistance, thermal resistance, corrosion resistance, structural strength, and the simplicity of construction and maintenance, while reducing the overall cost and meeting environmental protection requirements.

[0062] Embodiment 7

[0063] As Figure 1 And Figure 2 On the basis of Embodiments 1-6, the water passage 2 is provided with at least two groups, and each water passage 2 is spaced apart along the vertical direction.

[0064] The beneficial effect of the preferred scheme in the above embodiment is that by providing multiple groups of water passages 2, the cooling effect on high-temperature calcium carbide and molten iron is improved; at the same time, each water passage 2 is spaced apart along the vertical direction, forming a multi-layer cooling effect at the bottom of the high-temperature calcium carbide and molten iron. Compared with the cooling medium being heated at the same time in the same distance cooling mode, the multi-layer water passage 2 can form a stepped cooling effect, and the cooling effect is long-term effective.

[0065] Specifically, the water passage 2 can be provided with two groups, three groups, four groups, etc. In the figure, the water passage 2 is shown with two groups.

[0066] On the basis of the above-mentioned embodiments, the outer extension pipes 3 of the two groups of water passages 2 are connected to each other to form an integrated structure, and the adjacent protective sleeves 4 are connected to each other to form an integrated structure.

[0067] Embodiment 8

[0068] As Figure 1 and Figure 2 On the basis of embodiments 1-7, each water passage 2 includes a water inlet pipe section 21, a cooling pipe section 22, and a water outlet pipe section 23. The water inlet end of the water inlet pipe section 21 is located outside one side of the width direction of the flame tongue body 1, and the water outlet end extends into one side of the width direction of the flame tongue body 1. The cooling pipe section 22 is embedded in the flame tongue body 1, and the water inlet end is connected to the water outlet end of the water inlet pipe section 21. The water outlet end is connected to the water inlet end of the water outlet pipe section 23, and the water outlet end of the water outlet pipe section 23 extends out of the other side of the width direction of the flame tongue body 1.

[0069] The beneficial effects of using the preferred scheme in the above-mentioned embodiments are that during use, the cooling medium is passed in from the water inlet end of the water inlet pipe section 21 and is discharged from the flow passage of the cooling pipe section 22 and the water outlet pipe section 23. During this process, the cooling medium in the cooling pipe section 22 located in the flame tongue body 1 continuously cools the high-temperature silicon and molten iron in the downcomer passage 11.

[0070] On the basis of the above-mentioned embodiments, the corresponding water inlet pipe section 21, cooling pipe section 22, and water outlet pipe section 23 of each water passage 2 are respectively arranged at intervals in the vertical direction.

[0071] Embodiment 9

[0072] As Figure 1 and Figure 2 On the basis of embodiments 1-8, each cooling pipe section 22 includes two No. 1 cooling sections 221 and one No. 2 cooling section 222. The two No. 1 cooling sections 221 extend along the length direction of the flame tongue body 1, and one end of each of the two No. 1 cooling sections 221 is connected to the water outlet end of the water inlet pipe section 21 and the water inlet end of the water outlet pipe section 23, respectively, and the other end is connected to both ends of the No. 2 cooling section 222, respectively. The No. 2 cooling section 222 is located at the discharge end of the flame tongue body 1.

[0073] The beneficial effects of using the preferred scheme in the above-mentioned embodiments are that the two No. 1 cooling sections 221 and the No. 2 cooling section 222 extend to form a ring-shaped pipe section structure to form a cooling operation along the length direction of the flame tongue body 1 for the high-temperature silicon and molten iron flowing in the downcomer passage 11, thereby improving the cooling effect.

[0074] Based on the above-mentioned embodiments, two first cooling sections 221 of the same cooling pipe section 22 are arranged at both sides below the blanking channel 11 to cool from both sides at the same time, thereby improving the cooling effect.

[0075] Embodiment 10

[0076] As Figure 1 and Figure 2 Based on the embodiments 1-9, both of the first cooling sections 221 extend along the length direction of the blanking channel 11, and the distance between each section and the blanking channel 11 is equal.

[0077] The beneficial effect of the preferred scheme in the above-mentioned embodiments is that the uniform cooling effect is formed on the high-temperature ferrosilicon and molten iron flowing through each part of the blanking channel 11 by each section of the first cooling section 221.

[0078] Based on the above-mentioned embodiments, each first cooling section 221 is in an arc-shaped structure.

[0079] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0080] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0081] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0082] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0083] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" 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 application, 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 combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0084] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A calcium carbide furnace lance, characterized in that, The utility model provides a kind of water cooling furnace tongue, including furnace tongue body (1) and at least one group of water pipeline (2), the upper side of the furnace tongue body (1) is provided with blanking channel (11) extending along its length direction, the middle end of each water pipeline (2) is embedded in the furnace tongue body (1), and is located at the lower side of blanking channel (11), the water inlet end and water outlet end of each water pipeline (2) are extended from the feed end of the furnace tongue body (1).

2. A furnace tongue according to claim 1, characterised in that The bottom of the blanking channel (11) is inclined and extended, and the height of the feed end is higher than that of the discharge end, and the height of the water inlet end and water outlet end of each water pipeline (2) is higher than that of the discharge end of the blanking channel (11).

3. The electrode stem of claim 1 wherein, The two sides of the furnace tongue body (1) in the width direction are fixed with outer extension pipes (3), and the water inlet end and water outlet end of each water pipeline (2) are respectively sleeved with the outer extension pipes (3).

4. A burner cone for an Acheson furnace as defined in claim 3, wherein, The outer side of each outer extension pipe (3) is further covered with a protective sleeve (4), and one end of each protective sleeve (4) abuts against the furnace tongue body (1).

5. A burner cone for an Acheson furnace as defined in claim 4, wherein, The other end of each protective sleeve (4) is fixed with a thickened protective wall (41), and the inner side of the thickened protective wall (41) abuts against the water pipeline (2).

6. The electrode stem of claim 3 wherein, Each outer extension pipe (3) is a refractory cement pipe.

7. The electrode stem according to any one of claims 1 to 6, wherein The water pipeline (2) is provided with at least two groups, and each water pipeline (2) is vertically spaced.

8. The electrode stem of claim 1 wherein, Each water pipeline (2) includes a water inlet pipe section (21), a cooling pipe section (22) and a water outlet pipe section (23), the water inlet end of the water inlet pipe section (21) is located outside one side of the furnace tongue body (1) in the width direction, and the water outlet end extends into one side of the furnace tongue body (1) in the width direction, the cooling pipe section (22) is embedded in the furnace tongue body (1), the water inlet end of the cooling pipe section (22) is connected to the water outlet end of the water inlet pipe section (21), and the water outlet end of the cooling pipe section (22) is connected to the water inlet end of the water outlet pipe section (23), and the water outlet end of the water outlet pipe section (23) extends out of the other side of the furnace tongue body (1) in the width direction.

9. A furnace tongue according to claim 8, characterised in that Each cooling pipe section (22) includes two first cooling sections (221) and one second cooling section (222), the two first cooling sections (221) extend along the length direction of the furnace tongue body (1), one end of each first cooling section (221) is connected to the water outlet end of the water inlet pipe section (21) and the water inlet end of the water outlet pipe section (23) respectively, and the other end of each first cooling section (221) is connected to both ends of the second cooling section (222), and the second cooling section (222) is located at the discharge end of the furnace tongue body (1).

10. The electrode stem of claim 9, wherein, Each first cooling section (221) extends along the length direction of the blanking channel (11), and the straight-line distance between each part and the blanking channel (11) is equal.

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