An antifreeze device for external pipes of dry fog dust suppression system in coal unloading station

Abstract

The utility model discloses an antifreeze device for an external pipe of a dry fog dust suppression system of a coal unloading station, comprising a spray pipe, on which a plurality of atomizing nozzles are evenly installed, a heating pipe is sleeved on the spray pipe, a water injection cavity is formed between the spray pipe and the pipe wall of the heating pipe, sealing components are arranged at the pipe openings at both ends of the heating pipe, the atomizing nozzle extends to the outside of the heating pipe, a fog delivery pipe is connected to the spray pipe, the fog delivery pipe extends to the outside of the heating pipe, and a water injection pipe and a water return pipe are respectively connected to the heating pipe; the beneficial effects of the utility model are as follows: the spray pipe can be preheated and thawed by circulating hot water injected into the heating pipe, thereby preventing the spray pipe and the atomizing nozzle from freezing and clogging, ensuring the normal operation of the dry fog dust suppression system in winter, reducing the risk of dust pollution of the environment, and ensuring that the health of on-site workers is not harmed.

Description

Technical field:

[0001] The utility model belongs to the field of dry fog dust suppression systems in coal stations, in particular to an external pipe antifreeze device for a dry fog dust suppression system in a coal unloading station. Background technology:

[0002] Coal is transported by vehicles in the coal chemical industry and power generation. After the raw coal is transported to the coal unloading station, it is dumped into the unloading ditch and then enters the coal storage and transportation system. When the vehicle dumps the raw coal into the unloading ditch, a large amount of dust will be generated, which will cause serious pollution to the surrounding environment if it is not handled.

[0003] In the prior art, the most effective dry fog dust suppression system is usually used to reduce dust pollution. The dry fog dust suppression system is usually installed around the coal unloading port of the car. It uses compressed air through an atomizing nozzle to turn water into dry fog with a particle size of 0.1μm to 10μm and spray it above the dust generating area, thereby achieving the purpose of dust reduction. However, in actual use, the spray pipeline connected to the dry fog dust suppression system is prone to freezing when the temperature is low. Especially in the cold winter in the north, the spray pipeline that is not in operation will freeze and become blocked, resulting in the dry fog dust suppression system being unable to spray dry fog in time. The dust causes serious damage to the environment of the coal unloading yard, and the dust also causes harm to the health of on-site workers. Utility model content:

[0004] The utility model aims to provide an antifreeze device for external pipes of a dry fog dust suppression system of a coal unloading station, and overcomes the deficiencies of the above-mentioned prior art, and effectively solves the existing problem of freezing of external pipes of the dry fog dust suppression system.

[0005] The content of the utility model: An antifreeze device for external pipes of a dry fog dust suppression system of a coal unloading station, comprising a spray pipe, on which a plurality of atomizing nozzles are evenly installed, a heating pipe is sleeved on the spray pipe, a sealed water injection cavity is formed between the spray pipe and the pipe wall of the heating pipe, sealing components are arranged at the pipe openings at both ends of the heating pipe, the atomizing nozzle extends to the outside of the heating pipe, the spray pipe is connected with a mist delivery pipe, the mist delivery pipe extends to the outside of the heating pipe, and the heating pipe is respectively connected with a water injection pipe and a water return pipe.

[0006] Furthermore, the outer ends of the water injection pipe and the water return pipe are connected to a circulating water heater.

[0007] Furthermore, the water injection pipe and the water return pipe are respectively connected to two ends of the heating pipe.

[0008] Furthermore, the blocking assembly includes a blocking cap, which is threadedly connected to the pipe mouth of the heating pipe. A positioning clamp ring is coaxially installed in the inner cavity of the blocking cap, and the outer end of the spray pipe is sleeved in the positioning clamp ring.

[0009] The beneficial effects of the utility model are as follows: the spray pipe can be preheated and thawed by injecting circulating hot water into the heating pipe, thereby preventing the spray pipe and the atomizing nozzle from freezing and clogging, ensuring the normal operation of the dry fog dust suppression system in winter, reducing the risk of dust pollution to the environment, and ensuring that the health of on-site workers is not harmed. Description of the drawings:

[0010] Figure 1 This is the overall structural view of the utility model;

[0011] Figure 2 for Figure 1 Section view of the AA section;

[0012] In the figure: 1 spray pipe, 2 atomizing nozzle, 3 heating pipe, 4 mist delivery pipe, 5 water injection pipe, 6 return water pipe, 7 circulating water heater, 8 plugging cap, 9 positioning clamp ring. Specific implementation method:

[0013] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation of the present invention is now described with reference to the accompanying drawings:

[0014] like Figure 1 to Figure 2 As shown, an external pipe antifreeze device for a dry fog dust suppression system of a coal unloading station comprises a spray pipe 1, on which a plurality of atomizing nozzles 2 are evenly installed, a heating pipe 3 is sleeved on the spray pipe 1, a sealed water injection cavity is formed between the spray pipe 1 and the pipe wall of the heating pipe 3, and blocking components are arranged at the pipe openings at both ends of the heating pipe 3, the atomizing nozzle 2 extends to the outside of the heating pipe 3, the spray pipe 1 is connected with a mist delivery pipe 4, the mist delivery pipe 4 extends to the outside of the heating pipe 3, an injection pipe 5 and a return pipe 6 are respectively connected to the heating pipe 3, the outer ends of the injection pipe 5 and the return pipe 6 are connected to a circulating water heater 7, the injection pipe 5 and the return pipe 6 are respectively connected to the two ends of the heating pipe 3, the blocking component comprises a plugging cap 8, the plugging cap 8 is threadedly connected to the pipe opening of the heating pipe 3, a positioning clamp 9 is coaxially installed in the inner cavity of the plugging cap 8, and the outer end of the spray pipe 1 is sleeved in the positioning clamp 9.

[0015] Specifically, the circulating hot water injected into the heating tube 3 can be used to preheat and defrost the spray tube 1, thereby preventing the spray tube 1 and the atomizing nozzle 2 from freezing and clogging.

[0016] In actual use, when the outside temperature is low, before the dry fog dust suppression system is started, the hot water in the circulating water heater 7 can be input into the inner cavity of the heating tube 3 through the water injection pipe 5. At this time, the hot water filled in the sealed water injection cavity preheats the outer wall of the spray tube 1 and the atomizing nozzle 2, and thaws the frozen parts under the main function of heat conduction, so that the whole dry fog dust suppression system is in an unobstructed state. The dry fog dust suppression system inputs the mist medium into the inner cavity of the spray tube 1 through the mist delivery pipe 4, and finally sprays the mist through the nozzle 2 to suppress dust; under the pumping action of the circulating water heater 7, the outer wall of the spray tube 1 and the atomizing nozzle 2 are preheated. The water after heat exchange in the tube 3 can flow back to the circulating water heater 7 through the return pipe 6 for repeated heating; the water injection pipe 5 and the return pipe 6 are respectively connected to the two ends of the heating tube 3, so that the flow distance of the hot water in the heating tube 3 is longer, thereby increasing the heat exchange time and achieving a better thawing effect; removing the plugging caps 8 screwed on the two ends of the heating tube 3 can facilitate the cleaning of the scale on the outer wall of the spray tube 1, so that its preheating effect is better, and the outer end of the spray tube 1 is sleeved in the positioning clamp ring 9, so that the spray tube 1 and the heating tube 3 can be coaxial, so that the water injection cavity between the two tubes is more uniform, and the water flow thawing effect is better.

[0017] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An external pipe antifreeze device for a dry fog dust suppression system of a coal unloading station, comprising a spray pipe (1), on which a plurality of atomizing nozzles (2) are evenly mounted, characterized in that: A heating tube (3) is mounted on the spray tube (1); a sealed water injection cavity is formed between the spray tube (1) and the tube wall of the heating tube (3); blocking components are arranged at both ends of the tube opening of the heating tube (3); the atomizing nozzle (2) extends outside the heating tube (3); a mist delivery tube (4) is connected to the spray tube (1); the mist delivery tube (4) extends outside the heating tube (3); and a water injection tube (5) and a water return tube (6) are respectively connected to the heating tube (3).

2. According to claim 1, the antifreeze device for external pipes of the dry fog dust suppression system of a coal unloading station is characterized by: The outer ends of the water injection pipe (5) and the water return pipe (6) are connected to a circulating water heater (7).

3. According to claim 2, the antifreeze device for external pipes of the dry fog dust suppression system of a coal unloading station is characterized in that: The water injection pipe (5) and the water return pipe (6) are respectively connected to two ends of the heating pipe (3).

4. According to claim 1, the antifreeze device for external pipes of the dry fog dust suppression system of a coal unloading station is characterized in that: The plugging assembly comprises a plugging cap (8), the plugging cap (8) being threadedly connected to the pipe mouth of the heating pipe (3), a positioning clamping ring (9) being coaxially installed in the inner cavity of the plugging cap (8), and the outer end of the spray pipe (1) being sleeved in the positioning clamping ring (9).

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