A wear-resistant and fire-proof soft connection for converter feeding system

Abstract

The present application relates to a wear-resistant and fireproof flexible connection for a converter feeding system, including: a wear-resistant and fireproof flexible connection mechanism, the wear-resistant and fireproof flexible connection mechanism is arranged between the outlet of the gate valve and the inlet of the vibrating screen, the main structure of the wear-resistant and fireproof flexible connection mechanism is composed of a first high-temperature flame-retardant and fireproof silicone cloth layer, a ceramic fiber cloth layer, a second high-temperature flame-retardant and fireproof silicone cloth layer and a stainless steel metal mesh layer to form a tubular structure; a wear-resistant guide pipe, the wear-resistant guide pipe is arranged inside the wear-resistant and fireproof flexible connection mechanism. The outermost layer of the wear-resistant and fireproof flexible connection mechanism of the equipment provided in the embodiment of the present application adopts a stainless steel metal mesh layer to prevent the wear-resistant and fireproof flexible connection mechanism from being torn, and the stainless steel metal mesh layer is corrosion-resistant; the main part of the wear-resistant and fireproof flexible connection mechanism adopts a first high-temperature flame-retardant and fireproof silicone cloth layer, a ceramic fiber cloth layer, and a second high-temperature flame-retardant and fireproof silicone cloth layer, which are fireproof and high-temperature resistant to avoid spontaneous combustion.

Description

Technical Field

[0001] The present application relates to the technical field of converter equipment, and in particular to a wear-resistant and fire-proof flexible connection for a converter feeding system. Background Art

[0002] The leakage and ash emission problems of the converter feeding system equipment in the steelmaking area are a major problem in the environmental protection management of the steelmaking workshop. The raw materials of the converter mainly include fluorite, lime, dolomite, cold-solidified balls and coke, which are transported to the high-span silo of the converter by belts, and the raw materials are added to the converter through the feeding system. The function of auxiliary materials is to improve the slag and remove impurities such as phosphorus and sulfur during the converter steelmaking process. The converter raw material feeding equipment mainly consists of a silo, a gate valve, a vibrating screen, a weighing bucket, a soft connection and a feeding pipe. Converter steelmaking is carried out according to model calculations. Different types of steel require different amounts of material to be added. Before the start of smelting, it is necessary to prepare the materials in the weighing bucket in advance. By opening the gate valve, the vibrating screen starts to vibrate, and the raw materials are added to the converter through the feeding chute. The gate valve and the vibrating screen are connected by a soft connection so as not to affect the preparation of the weighing bucket. Since the raw materials are in block or powder form, the flexible joints are easily worn out, causing raw material leakage and ash emission, seriously polluting the on-site environment and causing cost waste. Moreover, when the positive pressure at the furnace mouth is large, the furnace fire will rise along the feeding pipe, causing high temperature fire inside the feeding system and burning the flexible joints. Therefore, we proposed a wear-resistant and fire-proof flexible joint for the converter feeding system. Utility Model Content

[0003] The present application provides a wear-resistant and fire-proof flexible connection for a converter charging system to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a wear-resistant and fire-proof flexible connection for a converter charging system, comprising:

[0005] A wear-resistant and fireproof flexible connection mechanism, which is arranged between the outlet of the gate valve and the inlet of the vibrating screen, and the main structure of the wear-resistant and fireproof flexible connection mechanism is a tubular structure composed of a first high-temperature flame-retardant and fire-proof silicone cloth layer, a ceramic fiber cloth layer, a second high-temperature flame-retardant and fire-proof silicone cloth layer and a stainless steel metal mesh layer;

[0006] A wear-resistant flow guide pipe is arranged inside the wear-resistant and fire-proof flexible connection mechanism.

[0007] Optionally, the first high-temperature flame-retardant and fire-proof silicone cloth layer, the ceramic fiber cloth layer, the second high-temperature flame-retardant and fire-proof silicone cloth layer and the stainless steel metal mesh layer are arranged in sequence from inside to outside.

[0008] Optionally, the upper and lower ends of the wear-resistant and fire-proof flexible connection mechanism are respectively provided with a first clamping flange and a second clamping flange, and the first clamping flange and the second clamping flange are respectively fixedly connected to the outlet of the gate valve and the inlet of the vibrating screen by bolts.

[0009] Optionally, a fluororubber pad is provided at the lower end of the first clamping flange and the upper end of the second clamping flange, a wear-resistant guide tube is fixed to the lower end of the upper fluororubber pad by bolts, and a pressure ring is provided at the upper end of the lower fluororubber pad.

[0010] Optionally, a first fixing ring is fixedly connected to the outer side of the wear-resistant flow guide pipe, and a second fixing ring is fixedly connected to the outer side of the second clamping flange.

[0011] Optionally, the inner sides of the first fixing ring and the second fixing ring are fixedly connected to the main structure of the wear-resistant and fire-proof flexible connection mechanism by bolts.

[0012] Optionally, the wear-resistant guide pipe is arranged on the inner side of the main structure of the wear-resistant and fire-proof flexible connection mechanism.

[0013] Optionally, the upper inlet of the gate valve is connected to a raw material weighing bucket.

[0014] Optionally, the outlet of the vibrating screen is connected with a discharge pipe.

[0015] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0016] The equipment provided in the embodiment of the present application has a wear-resistant and fireproof flexible connection mechanism, wherein a wear-resistant guide pipe made of a wear-resistant material is arranged inside the wear-resistant and fireproof flexible connection mechanism. The wear-resistant guide pipe adopts a cast alloy plate, which effectively separates the raw material from the rubber of the wear-resistant and fireproof flexible connection mechanism to extend the service life of the wear-resistant and fireproof flexible connection mechanism; the outermost layer of the wear-resistant and fireproof flexible connection mechanism adopts a stainless steel metal mesh layer to prevent the wear-resistant and fireproof flexible connection mechanism from being torn, and the stainless steel metal mesh layer is corrosion-resistant; the main part of the wear-resistant and fireproof flexible connection mechanism adopts a first high-temperature flame-retardant and fireproof silicone cloth layer, a ceramic fiber cloth layer, and a second high-temperature flame-retardant and fireproof silicone cloth layer, which are fire-resistant and high-temperature resistant to avoid spontaneous combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is the overall structure diagram of a wear-resistant and fire-proof soft connection of a converter charging system;

[0020] Figure 2 The present invention is a cross-sectional view of a wear-resistant and fire-resistant flexible connection mechanism of a converter charging system.

[0021] In the figure: 1. Raw material weighing bucket; 2. Gate valve; 3. Wear-resistant and fire-proof soft connection mechanism; 31. Wear-resistant guide pipe; 32. First clamping flange; 33. Fluorine rubber pad; 34. First fixing ring; 35. Second clamping flange; 36. Pressing ring; 37. First high-temperature flame-retardant and fire-proof silicone cloth layer; 38. Ceramic fiber cloth layer; 39. Second high-temperature flame-retardant and fire-proof silicone cloth layer; 310. Stainless steel metal mesh layer; 311. Second fixing ring; 4. Vibrating screen; 5. Feeding pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0023] Various embodiments of the present application may exist in the form of a range. It should be understood that the description in the form of a range is only for convenience and simplicity and should not be understood as a hard limit to the scope of the present application; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single values ​​within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which are applicable regardless of the range. In addition, whenever a numerical range is indicated in the present application, it is meant to include any quoted numbers (fractions or integers) within the indicated range. Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present application, etc., can be purchased from the market or can be prepared by existing methods.

[0024] In the present application, in the absence of any contrary description, the directional words used, such as "upper" and "lower", are specifically the directions of the drawings in the accompanying drawings. In addition, in the present application, the terms "include", "comprise", etc. refer to "including but not limited to". In the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the present application, "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist, for example, A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. Wherein A, B can be singular or plural. In the present application, "at least one" refers to one or more, and "plural" refers to two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of singular items or plural items. For example, "at least one of a, b, or c" or "at least one of a, b and c" can both mean: a, b, c, ab, i.e. a and b, ac, bc or abc, where a, b, c can be single or plural, respectively.

[0025] like Figure 1-Figure 2 As shown, the embodiment of the present application provides a wear-resistant and fire-proof flexible connection for a converter charging system, comprising:

[0026] A wear-resistant and fireproof flexible connection mechanism 3, which is arranged between the outlet of the gate valve 2 and the inlet of the vibrating screen 4, and the main structure of the wear-resistant and fireproof flexible connection mechanism 3 is a tubular structure composed of a first high-temperature flame-retardant and fire-proof silicone cloth layer 37, a ceramic fiber cloth layer 38, a second high-temperature flame-retardant and fire-proof silicone cloth layer 39 and a stainless steel metal mesh layer 310;

[0027] A wear-resistant flow guide pipe 31 is arranged inside the wear-resistant and fire-proof flexible connection mechanism 3 .

[0028] like Figure 2 As shown: the first high-temperature flame-retardant and fire-proof silicone cloth layer 37, the ceramic fiber cloth layer 38, the second high-temperature flame-retardant and fire-proof silicone cloth layer 39 and the stainless steel metal mesh layer 310 are arranged in sequence from the inside to the outside.

[0029] Specifically, the first high-temperature flame-retardant fireproof silicone cloth layer 37, the ceramic fiber cloth layer 38, and the second high-temperature flame-retardant fireproof silicone cloth layer 39 are fireproof and high-temperature resistant to avoid spontaneous combustion.

[0030] like Figure 2As shown: the upper and lower ends of the wear-resistant and fire-proof flexible connection mechanism 3 are respectively provided with a first clamping flange 32 and a second clamping flange 35, and the first clamping flange 32 and the second clamping flange 35 are respectively fixedly connected to the outlet of the gate valve 2 and the inlet of the vibrating screen 4 by bolts.

[0031] Specifically, the second clamping flange 35 and the lower pressing ring 36 are fixed by bolts.

[0032] like Figure 1 As shown: the lower end of the first clamping flange 32 and the upper end of the second clamping flange 35 are both provided with a fluororubber pad 33, the lower end of the upper fluororubber pad 33 is fixed with a wear-resistant guide tube 31 by bolts, and the upper end of the lower fluororubber pad 33 is provided with a pressure ring 36.

[0033] Specifically, the first clamping flange 32 and the wear-resistant flow guide pipe 31 are fixedly connected by bolts.

[0034] like Figure 2 As shown, a first fixing ring 34 is fixedly connected to the outer side of the wear-resistant flow guide pipe 31 , and a second fixing ring 311 is fixedly connected to the outer side of the second clamping flange 35 .

[0035] The inner sides of the first fixing ring 34 and the second fixing ring 311 are fixedly connected to the main structure of the wear-resistant and fire-proof flexible connection mechanism 3 by bolts.

[0036] Specifically, the first fixing ring 34 and the second fixing ring 311 are used to fix the upper and lower sides of the wear-resistant and fire-proof flexible connection mechanism 3 .

[0037] like Figure 2 As shown: the wear-resistant guide pipe 31 is arranged on the inner side of the main structure of the wear-resistant and fire-proof soft connection mechanism 3.

[0038] Specifically, the wear-resistant guide pipe 31 effectively separates the raw material from the rubber of the wear-resistant and fire-proof flexible connection mechanism 3 to extend the service life of the wear-resistant and fire-proof flexible connection mechanism 3.

[0039] like Figure 1 As shown: the upper inlet of the gate valve 2 is connected to a raw material weighing bucket 1.

[0040] Specifically: the raw material weighing bucket 1 can weigh the weight of the incoming materials.

[0041] like Figure 1 As shown: the outlet of the vibrating screen 4 is connected with a feed pipe 5 .

[0042] Specifically, the feed pipe 5 is a transfer channel for the feed of raw materials.

[0043] When the equipment is in use, the wear-resistant and fireproof soft connection mechanism 3 is made according to the flange port of the lower plug valve 2 of the raw material weighing bucket 1 and the upper size of the vibrating screen 4. The flange port connection part of the wear-resistant and fireproof soft connection mechanism 3 adopts a fluororubber pad 33. There are 16 bolts on the flange connected to the wear-resistant and fireproof soft connection mechanism 3 for tightening. The first clamping flange 32 and the second clamping flange 35 of the wear-resistant and fireproof soft connection mechanism 3 are made in an integral manner, and the thickness is not less than 7mm; the wear-resistant and fireproof soft connection mechanism 3 is provided with a wear-resistant and wear-resistant guide pipe 31, which is wear-resistant The guide tube 31 is made of cast alloy plate, which effectively separates the raw material from the rubber of the wear-resistant and fire-proof flexible connection mechanism 3 to extend the service life of the wear-resistant and fire-proof flexible connection mechanism 3; the outermost layer of the wear-resistant and fire-proof flexible connection mechanism 3 is made of a stainless steel metal mesh layer 310 to prevent the wear-resistant and fire-proof flexible connection mechanism 3 from being torn, and the stainless steel metal mesh layer 310 is corrosion-resistant; the main part of the wear-resistant and fire-proof flexible connection mechanism 3 is made of a first high-temperature flame-retardant and fire-proof silicone cloth layer 37, a ceramic fiber cloth layer 38, and a second high-temperature flame-retardant and fire-proof silicone cloth layer 39, which are fire-resistant and high-temperature resistant to avoid spontaneous combustion;

[0044] Through actual operation, this utility model has good sealing effect, effectively prevents leakage and dust emission, and meets environmental protection requirements. Since the wear-resistant guide pipe 31 is made of wear-resistant material, the service life of the device is more than 3 years, reducing equipment maintenance efforts and waste caused by raw material leakage.

[0045] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. It will be apparent to those skilled in the art that various modifications to these embodiments are possible, and the general principles defined in the present application can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown in the present application, but will conform to the widest scope consistent with the principles and novel features applied for by the present application.

Claims

1. A wear-resistant and fire-proof flexible connection for a converter feeding system, characterized in that: include: A wear-resistant fireproof flexible connection mechanism (3), the wear-resistant fireproof flexible connection mechanism (3) being arranged between the outlet of the gate valve (2) and the inlet of the vibrating screen (4), the main structure of the wear-resistant fireproof flexible connection mechanism (3) being a tubular structure composed of a first high-temperature flame-retardant fireproof silicone cloth layer (37), a ceramic fiber cloth layer (38), a second high-temperature flame-retardant fireproof silicone cloth layer (39) and a stainless steel metal mesh layer (310); A wear-resistant flow guide pipe (31), wherein the wear-resistant flow guide pipe (31) is arranged inside the wear-resistant and fire-proof flexible connection mechanism (3).

2. The wear-resistant and fire-proof flexible connection of the converter feeding system according to claim 1 is characterized in that: The first high-temperature flame-retardant and fireproof silicone cloth layer (37), the ceramic fiber cloth layer (38), the second high-temperature flame-retardant and fireproof silicone cloth layer (39) and the stainless steel metal mesh layer (310) are arranged in sequence from the inside to the outside.

3. The wear-resistant and fire-proof flexible connection of the converter feeding system according to claim 1 is characterized in that: The upper and lower ends of the wear-resistant and fire-proof flexible connection mechanism (3) are respectively provided with a first clamping flange (32) and a second clamping flange (35), and the first clamping flange (32) and the second clamping flange (35) are respectively fixedly connected to the outlet of the gate valve (2) and the inlet of the vibrating screen (4) by bolts.

4. The wear-resistant and fire-proof flexible connection of the converter feeding system according to claim 3 is characterized by: The lower end of the first clamping flange (32) and the upper end of the second clamping flange (35) are both provided with a fluororubber pad (33); the lower end of the upper fluororubber pad (33) is fixed with a wear-resistant flow guide tube (31) by bolts, and the upper end of the lower fluororubber pad (33) is provided with a pressure ring (36).

5. The wear-resistant and fire-proof flexible connection of the converter feeding system according to claim 4 is characterized in that: A first fixing ring (34) is fixedly connected to the outer side of the wear-resistant flow guide pipe (31), and a second fixing ring (311) is fixedly connected to the outer side of the second clamping flange (35).

6. The wear-resistant and fire-proof flexible connection of the converter feeding system according to claim 5 is characterized in that: The inner sides of the first fixing ring (34) and the second fixing ring (311) are fixedly connected to the main structure of the wear-resistant and fire-proof flexible connection mechanism (3) by bolts.

7. The wear-resistant and fire-proof flexible connection of the converter feeding system according to claim 1 is characterized in that: The wear-resistant flow guide pipe (31) is arranged on the inner side of the main structure of the wear-resistant and fire-proof flexible connection mechanism (3).

8. The wear-resistant and fire-proof flexible connection of the converter feeding system according to claim 1 is characterized in that: The upper inlet of the gate valve (2) is connected to a raw material weighing bucket (1).

9. The wear-resistant and fire-proof flexible connection of the converter feeding system according to claim 1 is characterized in that: The outlet of the vibrating screen (4) is connected to a feeding pipe (5).

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