CN214823256U

CN214823256U - Quick thawing device for frozen coal of train

Info

Publication number: CN214823256U
Application number: CN202120536732.8U
Authority: CN
Inventors: 岳松; 曾令文; 马茹; 占三军; 李鲲
Original assignee: PowerChina Hubei Electric Engineering Co Ltd
Current assignee: Hubei Electric Power Planning, Design and Research Institute Co.,Ltd.
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-11-23
Anticipated expiration: 2031-03-15

Abstract

The utility model discloses a train freezes quick thawing apparatus of coal, including the railway carriage body and the storehouse of unfreezing, be equipped with steam heating device and infrared heating device on the storehouse of unfreezing, the railway carriage body includes the box curb plate, the box curb plate is the interior sandwich structure who establishes the cavity, steam heating device's end-to-end connection has movable steam nozzle, movable steam nozzle communicates with the cavity of box curb plate. The frozen coal is unfrozen by adopting a mode of combining steam heating and infrared heating, the infrared heating temperature is high, the unfreezing speed is high, the movable steam spray pipe is communicated with the cavity of the side plate of the train box, the cavity is designed into a continuous U-shaped channel, the heating time is prolonged, the temperature drop and the dissipation of steam are reduced in the closed cavity, and the unfreezing speed is further accelerated; the heated steam flows back to the steam generator, so that the energy consumption is reduced.

Description

Quick thawing device for frozen coal of train

Technical Field

The utility model relates to a frozen coal technical field that unfreezes specifically indicates a quick thawing apparatus of train frozen coal.

Background

Due to the fact that air temperature is low in winter, the train is often frozen when coal is transported by adopting a train, the tippler is difficult to unload in winter, loss is caused to coal enterprises, and hidden danger is brought to operation of power plant equipment. Coal cars of thermal power plants in northern areas of China are very serious in freezing condition, but most coal cars are provided with a thawing warehouse or a large thawing shed or are avoided by adopting methods such as coal dehydration and the like. In recent years, the number of cold tides in south is increased due to weather changes, and coal cars are frozen in power plants in the middle and south of China. Because the power plant does not set up effectual anti-freezing facility, has to adopt artifical unloading mode to unload the coal, and efficiency is extremely low, the expense is higher, still brings the potential safety hazard for coal unloading personnel and fortune coal equipment moreover. If the power plants in the middle and southern areas are provided with thawing warehouses or large-scale thawing sheds like the power plants in the northern area or coal dehydration is adopted, the construction and operation investment of the power plants are greatly increased, and the economical efficiency is poor.

Because the main freezing area of the frozen coal lies in the adhesion of the frozen coal and the train box body, when the frozen coal is subjected to steam heating by adopting the unfreezing warehouse, the steam is generally subjected to jet heating outside the train box body through a steam pipeline or a spray pipe, the steam is scattered after contacting the train box body, the heating time of high-temperature steam and the train box body is short, the unfreezing time is long, the steam consumption is high, and the frozen coal becomes moist after being unfrozen after the steam is scattered, so that the influence on the combustion of subsequent coal is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects existing in the prior art and providing a quick thawing device for frozen coal of a train with short thawing time and low energy consumption.

In order to achieve the purpose, the utility model provides a quick thawing apparatus of train frozen coal, including the railway carriage body and the storehouse of unfreezing, its characterized in that: the improved refrigerator is characterized in that the thawing bin is provided with a steam heating device and an infrared heating device, the refrigerator body comprises a box body side plate, the box body side plate is of an interlayer structure with a cavity in the box body side plate, the tail end of the steam heating device is connected with a movable steam nozzle, and the movable steam nozzle is communicated with the cavity of the box body side plate.

Furthermore, the box body side plate comprises an inner side plate, an outer side plate and a plurality of partition plates, a cavity is formed between the inner side plate and the outer side plate, the cavity is divided into continuous U-shaped channels by the partition plates, and two ends of each U-shaped channel are respectively provided with a steam inlet and a steam outlet.

Further, the steam inlet is connected with a movable steam nozzle, and the steam outlet is connected into the steam generator through a steam return pipe.

Further, steam heating device includes steam conveying pipeline, last block valve and the governing valve of being equipped with of steam conveying pipeline, the other main pipe of branch vapour that has of steam conveying pipeline, divide and be connected with a plurality of fixed steam nozzle on the main pipe of vapour, steam conveying pipeline is last to be connected with movable steam nozzle through coupling hose.

Further, the steam distribution main pipes are arranged on two sides of the defrosting bin, and the movable steam nozzles are located at the upper end of the defrosting bin.

Further, infrared heating device includes infrared oven, infrared oven sets up in the bottom in storehouse of unfreezing, when the railway carriage position was in the storehouse of unfreezing, infrared oven was located the below of railway carriage body.

Further, infrared heating device is including being located the infrared heating pipe of storehouse both sides that unfreezes, infrared heating pipe level is placed, and is a plurality of infrared heating pipe is arranged along vertical direction, infrared heating pipe passes through the fixed bolster to be fixed on the lateral wall in storehouse of unfreezing.

The utility model has the advantages that: short thawing time and low energy consumption. Adopt the mode that steam heating and infrared heating combined together to unfreeze the frozen coal, infrared heating temperature is high, and thawing speed is fast, and the cavity intercommunication of activity steam spray tube and railway carriage side panel has been designed into continuous U type passageway to the cavity, has prolonged the heating time, has reduced the temperature drop and the dissipation of steam in confined cavity, and the steam after the heating flows back to steam generator in, has reduced the energy consumption.

Drawings

Fig. 1 is a perspective view of a quick thawing device for frozen coal in a train.

Fig. 2 is a front view of the quick thawing device for frozen coal in a train.

Fig. 3 is a schematic view of the internal structure of the side plate of the box body.

The components in the figures are numbered as follows: the device comprises a train box body 100, a box body side plate 110, an inner side plate 111, an outer side plate 112, a partition 113, a steam inlet 114, a steam outlet 115, a box body bottom plate 120, a drain pipe 121, train rollers 130, a defrosting bin 200, a steam heating device 210, a steam conveying pipeline 211, a blocking valve 212, a regulating valve 213, a steam distribution main pipe 214, a fixed steam nozzle 215, a movable steam nozzle 216, a connecting hose 217, an infrared heating device 220, an infrared oven 221, an infrared heating pipe 222, a fixed bracket 223 and a track 300.

Detailed Description

The following detailed description is provided to further explain the claimed embodiments of the present invention, so as to enable those skilled in the art to more clearly understand the claims. The scope of the present invention is not limited to the following specific embodiments. It is intended that the scope of the invention be limited not by the specific embodiments described below, but rather by the claims appended hereto.

As shown in fig. 1 to 3, the device for rapidly thawing frozen coal in a train comprises a train box body 100 and a thawing bin 200, wherein a track 300 is laid on the ground in the thawing bin 200, a steam heating device 210 and an infrared heating device 220 are arranged on the thawing bin 200, the train box body 100 comprises a box side plate 110, a box bottom plate 120 and train rollers 130, the box side plate 110 is of a sandwich structure with a cavity arranged therein, the tail end of the steam heating device 210 is connected with a movable steam nozzle 216, and the movable steam nozzle 216 is communicated with the cavity of the box side plate 110. Like this, adopt the mode that steam heating and infrared heating combined together to unfreeze the frozen coal, infrared heating temperature is high, and thawing speed is fast, and activity steam spray tube and railway carriage side panel's cavity intercommunication, steam temperature reduce and slow down, and steam can not dissipate in the air, has reduced the energy consumption.

In this embodiment, the box side plate 110 includes an inner side plate 111, an outer side plate 112, and a plurality of partition plates 113, a cavity is formed between the inner side plate 111 and the outer side plate 112, the cavity is divided into continuous U-shaped channels by the partition plates 113, and two ends of the U-shaped channels are respectively provided with a steam inlet 114 and a steam outlet 115. The steam inlet 114 is connected to a movable steam nozzle 216 and the steam outlet 115 is connected to the steam generator by a steam return line. Therefore, the steam passes through the continuous U-shaped channel, so that the heating time is prolonged, the thawing speed is improved, and the steam after heating flows back, so that the steam loss is reduced.

In this embodiment, the steam heating device 210 includes a steam delivery pipe 211, the steam delivery pipe is provided with a block valve 212 and an adjusting valve 213, the steam delivery pipe 211 is bypassed by a steam distribution main pipe 214, the steam distribution main pipe 214 is connected with a plurality of fixed steam nozzles 215, and the steam delivery pipe is connected with a movable steam nozzle 216 through a connection hose 217. The steam distribution header pipes 214 are disposed at both sides of the thawing compartment 200, and the movable steam nozzles 216 are located at the upper end of the thawing compartment 200. The movable steam nozzle is convenient to be connected with the steam inlet in a positioning mode, the frozen coal is mainly concentrated on the inner surfaces of the box body side plate and the box body bottom plate, and therefore the fixed steam nozzles are distributed on the two sides of the unfreezing bin to be beneficial to unfreezing the frozen coal on the inner surface of the box body side plate.

In this embodiment, the infrared heating device 220 includes an infrared oven 221, the infrared oven 221 is disposed at the bottom of the thawing bin 220, and when the train box 100 is located in the thawing bin 200, the infrared oven 221 is located right below the box bottom plate 120. The infrared heating device 220 includes infrared heating pipes 222 located at both sides of the thawing compartment 200, the infrared heating pipes 222 are horizontally disposed, a plurality of infrared heating pipes 222 are arranged in a vertical direction, and the infrared heating pipes 222 are fixed on the side wall of the thawing compartment 200 by fixing brackets 223. Like this, infrared heating device can unfreeze the box curb plate and the box bottom plate internal surface that freeze the coal the most seriously respectively, and infrared heating pipe places along the length direction of train box, and a plurality of infrared heating pipes are arranged along vertical direction, and the frozen coal of box curb plate internal surface is heated more evenly like this.

Claims

1. The utility model provides a quick thawing apparatus of train frozen coal, includes train box (100) and storehouse (200) that unfreezes, its characterized in that: be equipped with steam heating device (210) and infrared heating device (220) on storehouse (200) unfreezes, train box (100) are including box curb plate (110), box curb plate (110) are for establishing the sandwich structure of cavity in, the end-to-end connection of steam heating device (210) has activity steam nozzle (216), activity steam nozzle (216) and the cavity intercommunication of box curb plate (110).

2. The device for rapidly thawing frozen coal in train according to claim 1, wherein: the box body side plate (110) comprises an inner side plate (111), an outer side plate (112) and a plurality of partition plates (113), a cavity is formed between the inner side plate (111) and the outer side plate (112), the cavity is divided into continuous U-shaped channels by the partition plates (113), and a steam inlet (114) and a steam outlet (115) are respectively formed in two ends of each U-shaped channel.

3. The device for rapidly thawing frozen coal in train according to claim 2, wherein: the steam inlet (114) is connected to a movable steam nozzle (216), and the steam outlet (115) is connected to the steam generator by a steam return line.

4. The device for rapidly thawing frozen coal in train according to claim 1, wherein: steam heating device (210) include steam conveying pipeline (211), be equipped with block valve (212) and governing valve (213) on the steam conveying pipeline, steam conveying pipeline (211) bypass has branch female pipe of vapour (214), be connected with a plurality of fixed steam nozzle (215) on branch female pipe of vapour (214), be connected with movable steam nozzle (216) through coupling hose (217) on the steam conveying pipeline.

5. The device for rapidly thawing frozen coal in train according to claim 4, wherein: the steam distribution main pipe (214) is arranged on two sides of the defrosting bin (200), and the movable steam nozzle (216) is positioned at the upper end of the defrosting bin (200).

6. The device for rapidly thawing frozen coal in train according to claim 1, wherein: the infrared heating device (220) comprises an infrared oven (221), the infrared oven (221) is arranged at the bottom of the unfreezing bin (200), and when the train box body (100) is located in the unfreezing bin (200), the infrared oven (221) is located below the train box body (100).

7. The device for rapidly thawing frozen coal in train according to claim 1, wherein: the infrared heating device (220) comprises infrared heating pipes (222) located on two sides of the thawing bin (200), the infrared heating pipes (222) are horizontally placed, the infrared heating pipes (222) are arranged in the vertical direction, and the infrared heating pipes (222) are fixed on the side wall of the thawing bin (200) through fixing supports (223).