Steam pipeline of mixing stock bin

Abstract

The utility model relates to the technical field of steam pipelines, and discloses a steam pipeline of a mixing stock bin. The mixing stock bin steam pipeline comprises an outer end heat preservation assembly, a heat preservation shell is installed at the upper end of the outer end heat preservation assembly, a fixing ring is fixed to the upper end of the heat preservation shell, an inner heat preservation assembly is installed in the outer end heat preservation assembly in a connected mode, and a heat preservation layer is installed in the inner heat preservation assembly. A heat insulation plate is fixed in the heat insulation layer, a reinforcing ring is mounted at the upper end of the heat insulation plate, a valve assembly is mounted at the upper end of the internal heat insulation assembly, a floating ball is mounted in the valve assembly, a ball cover is mounted at the upper end of the floating ball, a filter screen is mounted at the outer end of the ball cover, and a valve cover is mounted at the upper end of the filter screen; the heat preservation structure has the advantages that the problems that the upper end of a traditional pipeline is not provided with any heat preservation structure, so that the steam temperature retentivity in a follow-up pipeline is poor, and the follow-up steam temperature heat loss is large are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam pipelines, and particularly relates to a steam pipeline for a mixing bin. Background Art

[0002] With the continuous development of the steel industry and the continuous change of raw materials in steel enterprises, sintering plants at home and abroad have adopted the method of increasing the material temperature and reducing the over-wet layer to improve the air permeability of the sintering material layer, increase the thickness of the material layer, and reduce the return ore rate and fuel consumption; generally, steam is used to preheat the mixed material to increase the sintering material temperature to above 65°C, eliminate the over-wet layer during the sintering process, improve the air permeability, and increase the thickness of the material layer. When using steam, a steam pipeline is required to transport it.

[0003] The existing Chinese utility model patent with the reference publication number: CN111678047B discloses a steam pipeline, which solves the problem that when there is a large amount of condensate in the steam pipeline at the current stage, it affects the transportation of steam in the steam pipeline. The key points of its technical solution are a steam pipeline, including a pipeline main body and a trough-shaped cover plate arranged in the inner cavity of the pipeline main body. A water collection trough with gap seams on both sides is formed between the trough-shaped cover plate and the bottom side wall of the pipeline main body. The pipeline main body is also connected with a drain pipe corresponding to each trough-shaped cover plate. The drain pipe partially extends into the water collection trough and a hydrophobic baffle is formed in the water collection trough. When the liquid level of the condensate in the water collection trough exceeds the height of the upper edge of the hydrophobic baffle, the excess condensate will enter the drain pipe, so that the water in the water collection trough can be discharged from the water collection trough in time, avoiding the influence on the transportation of steam in the whole steam pipeline caused by the water overflowing from the water collection trough.

[0004] Based on the retrieval of the above patent and the combination with the equipment in the prior art, it is found that when the pipeline transports steam, there is no thermal insulation structure at the upper end of the traditional pipeline, resulting in poor maintainability of the steam temperature inside the subsequent pipeline, causing a large amount of heat loss of the subsequent steam temperature. When the pipeline transports steam, due to the presence of inflection points in the pipeline, after the subsequent steam passes through the inflection points, water vapor will accumulate inside the pipeline inflection points, resulting in fluctuations in the moisture content of the mixed material brought by the subsequent steam. The existence of these problems affects the use of the device. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a steam pipeline for a mixing bin, which effectively prevents the problems that there is no thermal insulation structure at the upper end of the traditional pipeline, resulting in poor maintainability of the steam temperature inside the subsequent pipeline and causing a large amount of heat loss of the subsequent steam temperature.

[0007] Technical Solution

[0008] To achieve the above object, the present utility model provides the following technical solution: A steam pipeline for a mixing bin, including an outer-end heat insulation assembly. Inside the outer-end heat insulation assembly, an internal heat insulation assembly is connected and installed, which is convenient for changing the inside of the original pipeline. A heat insulation structure is arranged inside the pipeline, and the inside of the pipeline is insulated by the internal heat insulation layer and heat insulation board. At the upper end of the internal heat insulation assembly, a valve assembly is connected and installed, which is convenient for processing the elbow and preventing water accumulation at the subsequent elbow.

[0009] At the upper end of the outer-end heat insulation assembly, a heat insulation shell is installed, and a fixing ring is fixed at the upper end of the heat insulation shell. The fixing ring is installed at the upper end of the heat insulation shell, and the upper-end heat insulation shell is fixed to the upper end of the pipeline through the fixing ring, which is convenient for subsequently insulating the outer end of the pipeline.

[0010] Inside the internal heat insulation assembly, a heat insulation layer is installed, and a heat insulation board is fixed inside the heat insulation layer. A reinforcement ring is installed at the upper end of the heat insulation board. The reinforcement ring is installed at the upper end of the heat insulation board, and the heat insulation board is firmly connected through the reinforcement ring, which is convenient for subsequent use.

[0011] Inside the valve assembly, a floating ball is installed, and a ball cover is installed at the upper end of the floating ball. A filter net is installed at the outer end of the ball cover, and a valve cover is installed at the upper end of the filter net. A thermosensitive element is connected and installed at the upper end of the valve cover. The main function of the thermosensitive element is to control the rise and fall of the free floating ball by sensing the heat in the pipe, thereby realizing the adjustment of the steam trap.

[0012] As a preferred technical solution of the present utility model, a support rod is installed at the upper end of the outer-end heat insulation assembly, and a mounting ring is installed at the upper end of the support rod. The mounting ring is installed at the upper end of the support rod, and the upper-end pipeline is connected and installed through the mounting ring.

[0013] As a preferred technical solution of the present utility model, an elbow is installed at the upper end of the internal heat insulation assembly, and a conveying pipe is connected to the upper end of the elbow. The conveying pipe conveys the internal steam for use.

[0014] As a preferred technical solution of the present utility model, a housing is installed at the upper end of the valve assembly, and a first connection port is installed on the left side of the upper end of the housing. A second connection port is connected to the right side of the upper end of the housing. The first connection port and the second connection port are used in combination, which is convenient for subsequently installing both sides of the pipeline.

[0015] As a preferred technical solution of the present utility model, the internal heat insulation assembly is installed inside the heat insulation shell of the outer-end heat insulation assembly, and the valve assembly is installed between the elbow and the conveying pipe.

[0016] As a preferred technical solution of the present utility model, the upper end of the heat preservation shell is made of rubber and plastic heat preservation material. A fixing hole is installed at the upper end of the fixing ring, and the fixing ring is a detachable structure.

[0017] As a preferred technical solution of the present utility model, the inside of the heat preservation layer is made of aerogel heat preservation material. The upper end of the heat insulation board is a rigid polyurethane foam board, and the number of reinforcing rings is three.

[0018] As a preferred technical solution of the present utility model, the first connection port is connected to the elbow pipe, the second connection port is connected to the conveying pipe. A sewage outlet is installed at the lower end of the outer shell, and the upper end of the filter net is a hard shell structure.

[0019] Compared with the prior art, the present utility model provides a steam pipeline for a mixing bin, which has the following beneficial effects:

[0020] 1. Through the setting of the outer heat preservation component and the inner heat preservation component in the present utility model, an installation ring is installed in the outer heat preservation component. The installation ring fixedly supports the upper pipeline. A heat preservation shell is installed at the upper end of the installation ring. The heat preservation shell is made of rubber and plastic heat preservation material. The rubber and plastic heat preservation material is a flexible material, which is convenient for subsequent fixing on the upper end of the pipeline to insulate the pipeline. A fixing ring is installed at the upper end. The fixing ring installs the heat preservation shell, which is convenient for subsequent fixing of the heat preservation shell to the upper end of the pipeline. A heat preservation layer is installed in the inner heat preservation component. The heat preservation layer is installed on the inner layer of the conveying pipe. The heat preservation layer is made of aerogel heat preservation material. The aerogel heat preservation material has superior properties such as high temperature resistance, low thermal conductivity, low density, high strength, environmental protection, waterproof and non-combustible. A heat insulation layer is installed inside. The inside of the heat insulation layer is a rigid polyurethane foam board. The rigid polyurethane foam board has the effects of heat preservation and waterproofing, which is convenient for subsequent heat preservation of the inside of the pipeline and effectively prevents the pipeline from transporting steam. There is no heat preservation structure at the upper end of the traditional pipeline, resulting in poor temperature retention of the steam inside the subsequent pipeline and more heat loss of the steam temperature.

[0021] 2. Through the setting of the valve component in the present utility model, the valve component is a float type steam trap. When the equipment starts to work at the beginning, due to the contraction of the appropriate thermal sensitive element in the float type steam trap, the valve port (connection port) is opened, and the initial air is continuously discharged to achieve rapid start-up. As steam and hot condensate enter, the temperature inside the outer shell rises, and the air discharge device automatically closes. The float rises and falls according to the change of the condensate water level, driving the lever to adjust the opening of the valve seat hole and continuously discharging the condensate water. When the condensate water stops entering, the float descends by its own weight, driving the lever to drive the valve core to close the drain valve seat hole to prevent steam leakage, effectively preventing the pipeline from transporting steam. When there is an inflection point in the pipeline, after the subsequent steam passes through the inflection point, water vapor will accumulate inside the pipeline inflection point, resulting in the water vapor brought by the subsequent steam causing fluctuations in the moisture content of the mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 This is the schematic diagram of the external thermal insulation component of the structure of the present utility model;

[0024] Figure 3 This is the schematic diagram of the internal thermal insulation component of the structure of the present utility model;

[0025] Figure 4 This is the schematic diagram of the valve component of the structure of the present utility model.

[0026] Wherein: 1. External thermal insulation component; 101. Support rod; 102. Installation ring; 103. Thermal insulation shell; 104. Fixed ring; 2. Internal thermal insulation component; 201. Elbow; 202. Delivery pipe; 203. Thermal insulation layer; 204. Heat insulation board; 205. Reinforcing ring; 3. Valve component; 301. Outer shell; 302. First connection port; 303. Second connection port; 304. Floating ball; 305. Ball cover; 306. Filter screen; 307. Valve cover; 308. Thermal sensitive element. Specific embodiments

[0027] The following further describes the embodiments of the present utility model in detail with reference to the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0028] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Please refer to Figure 1 - Figure 4, in this embodiment, a steam pipeline for a mixing bin includes: an outer-end heat insulation component 1, a heat insulation shell 103 is installed at the upper end of the outer-end heat insulation component 1, and a fixing ring 104 is fixed at the upper end of the heat insulation shell 103. An internal heat insulation component 2 is connected and installed inside the outer-end heat insulation component 1. A heat insulation layer 203 is installed inside the internal heat insulation component 2, and a heat insulation board 204 is fixed inside the heat insulation layer 203. A reinforcing ring 205 is installed at the upper end of the heat insulation board 204. A valve component 3 is installed at the upper end of the internal heat insulation component 2. A floating ball 304 is installed inside the valve component 3, and a ball cover 305 is installed at the upper end of the floating ball 304. A filter screen 306 is installed at the outer end of the ball cover 305, and a valve cover 307 is installed at the upper end of the filter screen 306. A thermosensitive element 308 is connected and installed at the upper end of the valve cover 307. The internal heat insulation component 2 is installed inside the heat insulation shell 103 of the outer-end heat insulation component 1, and the valve component 3 is installed between the elbow 201 and the conveying pipe 202.

[0031] With the above structure; the outer-end heat insulation component 1 facilitates heat insulation of the outer end of the steam pipeline. The outer end of the pipeline is effectively insulated by the internally installed heat insulation shell 103. The internal heat insulation component 2 facilitates the modification of the interior of the original pipeline. A heat insulation structure is provided inside the pipeline, and the interior of the pipeline is insulated by the internal heat insulation layer 203 and heat insulation board 204, facilitating subsequent heat insulation of the steam heat. The valve component 3 facilitates the treatment of the elbow 201, preventing subsequent water accumulation at the elbow 201, which may cause fluctuations in the moisture content of the mixture due to the water vapor brought by the subsequent steam.

[0032] Please refer to Figure 1 - Figure 4 , a support rod 101 is installed at the upper end of the outer-end heat insulation component 1, and a mounting ring 102 is installed at the upper end of the support rod 101. The upper end of the heat insulation shell 103 is made of rubber and plastic heat insulation material. A fixing hole is installed at the upper end of the fixing ring 104, and the fixing ring 104 is a detachable structure.

[0033] With the above structure: By installing the support rod 101, the entire upper-end pipeline is supported, facilitating subsequent installation and connection of the pipeline. The mounting ring 102 is installed at the upper end of the support rod 101, and the upper-end pipeline is connected and installed through the mounting ring 102. The heat insulation shell 103 facilitates heat insulation and protection of the outer end of the pipeline. The upper end of the heat insulation shell 103 is made of rubber and plastic heat insulation material, which is a flexible material and is convenient for subsequent fixing to the upper end of the pipeline for heat insulation. The fixing ring 104 is installed at the upper end of the heat insulation shell 103, and the upper-end heat insulation shell 103 is fixed to the upper end of the pipeline through the fixing ring 104, facilitating subsequent heat insulation of the outer end of the pipeline.

[0034] Please refer to Figure 1 - Figure 4, the upper end of the internal heat insulation component 2 is provided with an elbow pipe 201, and the upper end of the elbow pipe 201 is connected with a delivery pipe 202. The inside of the heat insulation layer 203 is made of aerogel heat insulation material. The upper end of the heat insulation board 204 is a rigid polyurethane foam board. The number of reinforcing rings 205 is three.

[0035] Through the above structure: the steam inside is transported and used by installing the elbow pipe 201 and the delivery pipe 202, which is convenient for the subsequent use of the overall device. The heat insulation layer 203 is installed inside the delivery pipe 202, and the inside of the pipe is insulated by the heat insulation layer 203. The heat insulation layer 203 is made of aerogel heat insulation material, which has superior properties such as high temperature resistance, low thermal conductivity, low density, high strength, environmental protection, waterproof and non-combustible. The heat insulation board 204 is installed inside, and the inside of the heat insulation board 204 is a rigid polyurethane foam board, which has the functions of heat insulation and waterproof, facilitating the subsequent insulation of the inside of the pipe. The reinforcing ring 205 is installed at the upper end of the heat insulation board 204, and the heat insulation board 204 is firmly connected through the reinforcing ring 205, which is convenient for subsequent use.

[0036] Please refer to Figure 1 - Figure 4 , the upper end of the valve assembly 3 is provided with a housing 301, and the left side of the upper end of the housing 301 is provided with a first connection port 302. The right side of the upper end of the housing 301 is connected with a second connection port 303. The first connection port 302 is connected with the elbow pipe 201, and the second connection port 303 is connected with the delivery pipe 202. The lower end of the housing 301 is provided with a sewage outlet, and the upper end of the filter net 306 is a hard shell structure.

[0037] Through the above structure: the internal structure is connected and installed by installing the housing 301, and it is convenient to protect the internal structure. The first connection port 302 and the second connection port 303 are used in combination, which is convenient for the subsequent installation and use of both sides of the pipe. The float ball 304 rises and falls according to the change of the condensate water level, driving the opening degree of the seat hole of the lever regulating valve to continuously discharge the condensate water. The ball cover 305 is fixed at the upper end of the float ball 304, and the float ball 304 is connected through the ball cover 305. The filter net 306 is installed at the upper end of the ball cover 305. The filter net 306 is used to filter the liquid at the bottom to prevent sundries and particulate matters from entering the oil and gas system, thereby protecting other components in the system. The valve cover 307 connects and installs the upper thermal sensitive element 308. The main function of the thermal sensitive element 308 is to control the rise and fall of the free float ball 304 by sensing the heat in the pipe, thereby realizing the regulation of the steam trap.

[0038] When in use, first, in order to insulate the steam inside the pipeline, the interior of the original pipeline is changed, and insulation structures are installed inside and outside the pipeline, and an insulation shell 103 is installed on the outer end of the pipeline. The upper end of the insulation shell 103 is the insulation shell 103 The upper end of the rubber-plastic insulation material is a flexible material. The outer end of the delivery pipe 202 is insulated by the insulation shell 103, and a fixing ring 104 is installed on the upper end of the insulation shell 103. The fixing ring 104 is convenient for fixing the insulation shell 103 to the upper end of the delivery pipe 202, so as to facilitate the subsequent insulation of the upper end of the delivery pipe 202, and the insulation layer 203 is installed inside the delivery pipe 202. The interior of the insulation layer 203 is aerogel insulation material. The aerogel insulation material has high temperature resistance, low thermal conductivity, low density, high strength, green environmental protection, waterproof and non-flammable properties, and the insulation layer 203 is installed inside. The interior of the hot plate 204 and the insulation board 204 is a rigid polyurethane board, which has the functions of heat preservation and waterproofing. The interior of the delivery pipe 202 is insulated by installing the insulation layer 203 and the insulation board 204. In order to prevent the accumulation of water vapor at the subsequent elbow 201, the water vapor brought by the steam causes the moisture of the mixed material to fluctuate. A steam trap is installed at the elbow 201. The steam trap opens the connection port due to the contraction of an appropriate amount of thermistor 308, and the initial air is continuously discharged to achieve rapid startup. With the entry of steam and hot condensed water, the temperature inside the shell 301 increases, and the air exhaust device is automatically closed. The float 304 rises and falls according to the change of the condensed water level, driving the lever to adjust the opening of the valve seat hole to continuously discharge the condensed water. When the condensed water stops entering, the float 304 falls by its own weight, driving the lever to drive the core to close the drain valve seat hole to prevent steam leakage.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam pipeline for a mixing silo, characterized in that: The invention comprises an outer end heat-insulating component (1), a heat-insulating shell (103) is installed at the upper end of the outer end heat-insulating component (1), and a fixing ring (104) is fixed at the upper end of the heat-insulating shell (103), an inner heat-insulating component (2) is connected and installed inside the outer end heat-insulating component (1), a heat-insulating layer (203) is installed inside the inner heat-insulating component (2), and a heat-insulating plate (204) is fixed inside the heat-insulating layer (203), and the upper end of the heat-insulating plate (204) is installed A reinforcing ring (205) is installed, a valve assembly (3) is installed on the upper end of the internal heat-insulating assembly (2), a floating ball (304) is installed inside the valve assembly (3), and a ball cover (305) is installed on the upper end of the floating ball (304), a filter screen (306) is installed on the outer end of the ball cover (305), and a valve cover (307) is installed on the upper end of the filter screen (306), and a thermal element (308) is connected and installed on the upper end of the valve cover (307).

2. A mixed material silo steam pipeline according to claim 1, characterized in that: A support rod (101) is installed at the upper end of the outer end heat preservation component (1), and a mounting ring (102) is installed at the upper end of the support rod (101).

3. A mixed material silo steam pipeline according to claim 1, characterized in that: A curved pipe (201) is installed at the upper end of the internal heat-insulating component (2), and a conveying pipe (202) is connected to the upper end of the curved pipe (201).

4. A mixed material silo steam pipeline according to claim 1, characterized in that: The upper end of the valve assembly (3) is provided with a housing (301), and the upper left side of the housing (301) is provided with a first connection port (302), and the upper right side of the housing (301) is connected with a second connection port (303).

5. The steam pipeline for a mixing silo according to claim 1, characterized in that: The internal heat-insulating component (2) is installed inside the heat-insulating shell (103) in the external heat-insulating component (1), and the valve component (3) is installed between the elbow (201) and the delivery pipe (202).

6. A mixed material silo steam pipeline according to claim 2, characterized in that: The upper end of the heat-insulating shell (103) is made of rubber-plastic heat-insulating material, the upper end of the fixing ring (104) is provided with a fixing hole, and the fixing ring (104) is a disassembly structure.

7. A mixed material silo steam pipeline according to claim 3, characterized in that: The interior of the thermal insulation layer (203) is made of aerogel thermal insulation material, the upper end of the thermal insulation board (204) is a rigid foam polyurethane board, and the number of the reinforcement rings (205) is three.

8. A mixed material silo steam pipeline according to claim 4, characterized in that: The first connection port (302) is connected to the curved pipe (201), the second connection port (303) is connected to the delivery pipe (202), a sewage outlet is installed at the lower end of the outer shell (301), and the upper end of the filter screen (306) is a hard shell structure.

Images