Ultrahigh-pressure liquid jet treatment equipment for frozen coal

Abstract

The utility model discloses frozen coal ultrahigh-pressure liquid jet treatment equipment, and belongs to the field of railway coal unloading equipment, the frozen coal ultrahigh-pressure liquid jet treatment equipment is arranged in front of a car dumper, the frozen coal ultrahigh-pressure liquid jet treatment equipment comprises a box body, a heat exchanger, ultrahigh-pressure water jet equipment and a high-pressure nozzle assembly, the high-pressure nozzle assembly is arranged on a cross beam of a movable portal frame structure, and the movable portal frame structure is arranged above a coal car compartment; the movable portal structure can move in the length direction of the coal conveyor carriage, efficient frozen coal crushing can be achieved under the extremely low water volume by adopting the ultrahigh-pressure water jet technology, the heat exchanger and the ultrahigh-pressure water jet equipment are combined for use, the water temperature and jet pressure of the whole system can be adjusted according to actual needs, and the water-saving effect is achieved. The method meets the treatment requirements of different types of frozen coal, has excellent performance in the aspects of water quantity control, high efficiency, cost saving, compartment protection, environmental protection and dust falling, rapid unfreezing and the like, and has important significance in improving the frozen coal unloading efficiency and reducing the operation cost.

Description

Technical Field

[0001] The present application belongs to the field of railway coal unloading equipment, and in particular to an ultra-high pressure liquid jet treatment equipment for frozen coal. Background Art

[0002] The main reason for coal freezing on trains in winter is that the water content of the coal is high, coupled with low temperatures and long transportation time along the way, which causes the coal and the wagon to freeze. Secondary unloading or direct delivery to the manual unloading line for manual or mechanical breaking of frozen coal, and manual unloading and cleaning. This greatly prolongs the time for loading and unloading, increases safety risks, reduces unloading efficiency, and doubles the delay fees and manual unloading fees.

[0003] At present, there are several main methods for cleaning frozen coal: 1. Build a steam thawing warehouse. In the coal unloading area, build a steam thawing warehouse of considerable capacity, let the carriages loaded with frozen coal enter the warehouse first, and then unload the coal after the coal is thawed. However, the construction of a steam thawing warehouse requires a large amount of capital investment, including land, building materials, equipment purchase and installation costs. Moreover, the steam thawing process is relatively slow, and it takes a long time to completely thaw the frozen coal, consuming a lot of steam energy and extending the coal unloading cycle. 2. Electromagnetic thawing, using the special properties of electromagnetic waves (mainly microwaves) to heat and thaw frozen coal, but the equipment cost is high, and due to the unevenness of factors such as the shape, density and water content of the frozen coal, the heat distribution is uneven during the thawing process, resulting in uneven thawing. Long-term or high-intensity electromagnetic wave radiation will have a certain impact on the coal quality. 3. Electric far-infrared heating: the car body is first driven into a warehouse equipped with a far-infrared heater, and the car body is heated by radiation and air convection. After a certain period of time, it enters the dumper for operation. This method consumes too much electricity and has low heating efficiency. 4. The single-bucket loader breaks and loosens the frozen coal in the car body. After the dumper unloads, the remaining frozen coal is manually cleaned. This method requires manual participation in cleaning the remaining frozen coal, which is labor-intensive and inefficient. Due to the hard texture of frozen coal, manual cleaning may not be able to completely remove all frozen coal, affecting subsequent operations. The problem of frozen coal unloading has greatly reduced the amount of coal transportation in winter. It is urgent to study efficient and low-cost methods for handling frozen coal. Utility Model Content

[0004] The utility model provides a frozen coal ultra-high pressure liquid jet processing device, which is used to solve the problems of low efficiency and high cost of frozen coal unloading.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A frozen coal ultra-high pressure liquid jet processing equipment is arranged in front of a dumper, and is characterized in that it includes a box body, a heat exchanger, an ultra-high pressure liquid jet equipment and a high-pressure nozzle assembly. The high-pressure nozzle assembly is arranged on the crossbeam of a movable gantry structure. The movable gantry is arranged above the coal transport carriage. The movable gantry structure can move along the length direction of the coal transport carriage. The liquid medium in the box body is pressurized by the ultra-high pressure water jet equipment and sprayed out through the high-pressure nozzle assembly after heat exchange and temperature rise in the heat exchanger, thereby impacting the frozen coal to achieve crushing of the frozen coal.

[0007] The ultra-high pressure jet treatment equipment for frozen coal of the present application adopts ultra-high pressure water jet technology, which can realize efficient frozen coal crushing under extremely low water volume. The design of the movable gantry structure enables the high-pressure nozzle assembly to move along the length direction of the coal transport carriage to adapt to carriages of different lengths and widths, thereby improving the versatility and flexibility of the equipment. The combined use of the heat exchanger and the ultra-high pressure water jet equipment enables the entire system to adjust the water temperature and the jet pressure according to actual needs to meet the requirements of different types of frozen coal treatment. It excels in terms of water volume control, high efficiency, cost saving, carriage protection, environmental protection, dust reduction and rapid thawing, and is of great significance for improving the efficiency of frozen coal unloading and reducing operating costs.

[0008] In a preferred implementation, the high-pressure nozzle assembly includes a plurality of high-pressure nozzles evenly arranged along the direction of the crossbeam, and the high-pressure nozzles are evenly arranged along the direction of the crossbeam. The high-pressure nozzles can move horizontally to expand the range of impacting frozen coal and ensure that the liquid medium can be impacted and crushed against the inner wall of the coal transport compartment.

[0009] The high-pressure nozzles are evenly arranged along the crossbeam direction, ensuring that the water jets can evenly cover the entire width of the coal transport carriage in the lateral direction. This arrangement avoids local excessive impact or omissions and improves the treatment effect. The high-pressure nozzles are horizontally moved through the existing gantry structure. This feature greatly increases the flexibility and range of impacting frozen coal. Through horizontal movement, the jets ejected by the high-pressure nozzles can cling to the inner wall of the coal transport carriage for impact and crushing, and can handle frozen coal that is tightly adhered to the carriage wall, achieving efficient thawing, greatly shortening the processing time, and improving unloading efficiency.

[0010] In a preferred implementation, a plurality of high-pressure nozzles are arranged in a main pipeline, and the main pipeline is connected to the ultra-high-pressure water jet equipment through a pipeline.

[0011] In a preferred implementation, the high-pressure nozzle assembly can be lifted and moved relative to the crossbeam to approach the frozen coal in the coal carriage to impact and crush the frozen coal at different depths.

[0012] The high-pressure nozzle assembly is designed to be able to move up and down relative to the crossbeam, thereby enhancing its ability to handle frozen coal at different depths.

[0013] In a preferred implementation, the liquid medium in the box is a mixture of water and antifreeze, which lowers the freezing point of water so that the mixture can remain liquid at a lower temperature, thereby effectively preventing the liquid sprayed into the coal from freezing quickly during or after thawing.

[0014] In a preferred implementation, the heat exchanger includes heat exchange tubes arranged in a serpentine / spiral shape in a housing, and steam is passed through the heat exchange tubes to heat the liquid medium.

[0015] In a preferred implementation, the temperature T of the liquid medium after heat exchange in the heat exchanger satisfies 50°C≤T≤65°C.

[0016] In this temperature range, by precisely controlling the temperature of the liquid medium after heat exchange, it is possible to reduce energy consumption while ensuring the thawing effect. This helps to reduce operating costs during the thawing process and improve economic benefits.

[0017] In a preferred implementation, the working pressure of the high-pressure nozzle assembly is 200 MPA to 480 MPA.

[0018] Under appropriate working pressure, the high-pressure nozzle assembly can generate sufficient water jet impact force to quickly penetrate the ice layer on the surface of the frozen coal and achieve efficient thawing. This helps to shorten the thawing time and improve processing efficiency. By accurately controlling the working pressure, it is possible to avoid energy waste and equipment wear caused by excessive pressure, or to avoid the impact pressure being too low due to insufficient pressure and the inability to effectively break the frozen coal. At the same time, a reasonable working pressure range can also help reduce operating costs and improve economic benefits.

[0019] In a preferred implementation, the high-pressure nozzle assembly intermittently impacts and cuts the frozen coal / continuously jets and impacts and crushes the frozen coal.

[0020] Through intermittent drilling operations, such as drilling once every 10 seconds, the energy consumption of the water jet can be effectively controlled. In the intervals between drilling, the equipment can be suspended to reduce unnecessary energy consumption. Targeted crushing can be achieved, for example, by setting an electromagnetic valve to control only a single or multiple high-pressure nozzles. Continuous impact crushing can maintain a continuous effect on the frozen coal. The water jet continuously acts on the surface of the frozen coal, and the size of the crushed coal blocks is relatively uniform, which is conducive to subsequent processing and transportation.

[0021] In a preferred implementation, the mobile gantry structure is also provided with an AI recognition device and an infrared thermal imaging device to monitor the thawing condition of the coal in the carriage, and accordingly control the high-pressure nozzle assembly to come to the unthawed area for repeated impact crushing.

[0022] Since there is a significant temperature difference between thawed coal and unthawed coal, this feature makes AI recognition plus infrared thermal imaging devices an effective tool for monitoring thawing conditions. By analyzing infrared thermal images, it is possible to accurately identify which areas of the coal in the carriage have been thawed and which areas are still frozen. This provides accurate positioning information for subsequent high-pressure nozzle assembly operations. Based on the monitoring results of the infrared thermal imaging device, the control system can intelligently dispatch high-pressure nozzle assemblies to operate in unthawed areas. The high-pressure nozzle assembly impacts the frozen coal in an intermittent punching and crushing manner, effectively accelerating the thawing process and breaking up large pieces of frozen coal.

[0023] The above structure has the following beneficial effects:

[0024] 1. The frozen coal ultra-high pressure liquid jet treatment equipment of the present application has a significant effect in controlling the water volume. It adopts ultra-high pressure liquid jet technology, which can control the water consumption to the maximum extent while maintaining powerful crushing and cutting capabilities, and meets the moisture content requirements of power and metallurgical fuel coal.

[0025] 2. The ultra-high pressure liquid jet treatment equipment for frozen coal of the present application heats up the liquid medium through a heat exchanger or an electric heater. This step is more efficient in energy utilization compared to directly using heat sources such as high-temperature steam. At the same time, although the pressurization process of the ultra-high pressure liquid jet equipment requires a certain amount of energy input, due to its small water consumption and high crushing efficiency, it generally reduces the energy consumption required for unit frozen coal crushing.

[0026] 3. The frozen coal ultra-high pressure liquid jet processing equipment of the present application has low water volume and energy consumption control and can process the frozen coal directly in front of the dumper, reducing the labor cost of manual crushing and cleaning, and also shortening the time of the entire unloading process, further reducing the overall cost.

[0027] 4. The ultra-high pressure liquid jet treatment equipment for frozen coal in this application has extremely high treatment efficiency. The traditional steam thawing method may take several hours or even longer, while the ultra-high pressure jet equipment can complete the thawing task within 20 minutes, greatly speeding up the unloading speed of frozen coal. This not only improves work efficiency, but also reduces the time the carriage stays at the station, improving the unloading efficiency.

[0028] 5. The frozen coal ultra-high pressure liquid jet treatment equipment of the present application, due to the working principle and physical properties of the ultra-high pressure liquid jet, only acts on the frozen coal medium to break it, and will not cause any damage to the carriage. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation on the present invention. In the drawings:

[0030] Figure 1 A schematic structural diagram of a schematic implementation of the ultra-high pressure liquid jet treatment equipment for frozen coal of the present application is depicted;

[0031] Figure 2 A schematic diagram of the three-dimensional structure of a schematic implementation of the frozen coal ultra-high pressure nozzle assembly of the present application is depicted;

[0032] Figure 3 A schematic diagram of a state in which a high-pressure nozzle of the present application impacts frozen coal is depicted;

[0033] Description of labels:

[0034] 1-box; 10-antifreeze box; 2-heat exchanger; 3-ultra-high pressure water jet equipment; 4-high pressure nozzle assembly; 40-high pressure nozzle; 41-main pipeline; 5-movable gantry structure; 50-crossbeam; 51-vertical beam; 53-gantry guide rail; 6-coal carriage; 7-pipeline. DETAILED DESCRIPTION

[0035] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are considered to be illustrative and non-restrictive in nature.

[0036] In the description of the present invention, it is necessary to understand that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 on the present invention. In the present invention, unless otherwise clearly specified and limited, a first feature being "upper" or "lower" than a second feature may be the first and second features directly contacting, or the first and second features indirectly contacting through an intermediate medium.

[0037] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0038] In the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0039] The utility model is described below in conjunction with the accompanying drawings.

[0040] The specific plans adopted are:

[0041] like Figure 1-3 As shown, the utility model provides an ultra-high pressure liquid jet treatment device for frozen coal, which is arranged in front of a dumper, and includes a box body 1, a heat exchanger 2, an ultra-high pressure water jet device 3 and a high pressure nozzle assembly. The high pressure nozzle assembly 4 is arranged on a cross beam 50 of a movable gantry structure 5, and a coal transport carriage is arranged between two vertical beams 51 of the movable gantry structure. The movable gantry structure is arranged on a gantry guide rail 53 and can move along the length direction of the coal transport carriage. The liquid medium in the box body is pressurized by the ultra-high pressure water jet device and sprayed out through the high pressure nozzle assembly after heat exchange and temperature rise in the heat exchanger, so as to impact the frozen coal to achieve crushing of the frozen coal.

[0042] The ultra-high pressure jet treatment equipment for frozen coal of the present application adopts ultra-high pressure water jet technology, which can realize efficient frozen coal crushing under extremely low water volume. The design of the movable gantry structure enables the high-pressure nozzle assembly to move along the length direction of the coal transport carriage to adapt to carriages of different lengths and widths, thereby improving the versatility and flexibility of the equipment. The combined use of the heat exchanger and the ultra-high pressure water jet equipment enables the entire system to adjust the water temperature and the jet pressure according to actual needs to meet the requirements of different types of frozen coal treatment. It excels in terms of water volume control, high efficiency, cost saving, carriage protection, environmental protection, dust reduction and rapid thawing, and is of great significance for improving the efficiency of frozen coal unloading and reducing operating costs.

[0043] Compared with existing thawing methods, such as long-term use of steam heating, this solution only consumes about 80L of water to treat a frozen coal carriage, and can strictly guarantee the moisture content of the fuel coal entering the factory.

[0044] At the same time, compared with steam thawing which takes several hours or even longer, this solution can shorten the thawing of frozen coal to about 20 minutes, reducing the operating time and energy consumption of the equipment, greatly improving the unloading efficiency, further reducing the overall cost, reducing the high delay fees and labor costs caused by waiting for thawing, and improving the overall operating efficiency. Considering the volume of the 12-meter carriage, the high-pressure nozzle assembly designed in this solution avoids the damage of the water jet to the carriage structure by precisely controlling the direction and intensity of the jet. The jet water acts directly on the frozen coal and will not significantly expand the volume of the entire coal, thereby protecting the integrity and stability of the carriage. The water jet can also play a dust reduction role in the process of crushing the frozen coal, effectively reducing the dust pollution generated during the unloading process, improving the working environment, and meeting environmental protection requirements.

[0045] As a preferred embodiment of the present application, the high-pressure nozzle assembly comprises a plurality of high-pressure nozzles 40 evenly arranged along the crossbeam direction. The high-pressure nozzles are evenly arranged along the crossbeam direction. Figure 2 , multiple high-pressure nozzles are arranged in a main pipeline 41, and the main pipeline is connected to the ultra-high pressure water jet equipment 3 through a pipeline 7.

[0046] The high-pressure nozzle can move horizontally to expand the range of impacting frozen coal and ensure that the liquid medium can be impacted and crushed against the inner wall of the coal transport car. Specifically, the high-pressure nozzles are evenly arranged along the direction of the crossbeam, ensuring that the water jet can evenly cover the entire width of the coal transport car in the lateral direction. This arrangement avoids local excessive impact or omissions and improves the treatment effect. The high-pressure nozzle can achieve horizontal movement through the existing gantry structure. This feature greatly increases the flexibility and range of impacting frozen coal. Through horizontal movement, the jet ejected by the high-pressure nozzle can be close to the inner wall of the coal transport car for impact and crushing, and can handle frozen coal that is tightly adhered to the car wall, achieve efficient thawing, greatly shorten the processing time, and improve unloading efficiency.

[0047] As a preferred embodiment of the present application, the high-pressure nozzle assembly intermittently impacts and cuts the frozen coal / continuously impacts and cuts the frozen coal. The intermittent crushing frozen coal solution can effectively control the energy consumption of the water jet through intermittent drilling operations, such as drilling once every 10 seconds. During the drilling interval, the equipment can be suspended to reduce unnecessary energy consumption. It can be crushed in a targeted manner, so that each drilling can accurately act on a specific area of ​​the frozen coal, which helps to achieve a more refined crushing effect.

[0048] The continuous impact crushing frozen coal solution can maintain a continuous effect on the frozen coal. The water jet continuously acts on the surface of the frozen coal. The size of the broken coal blocks is relatively uniform, which is conducive to subsequent processing and transportation. The crushing efficiency is high and the thawing and crushing tasks can be completed faster, but the energy consumption and water volume are higher than the intermittent solution. The specific selection of the two solutions should be comprehensively considered based on actual conditions and needs. For example, the two solutions can be used in combination, first continuously impact crushing the frozen coal, and then based on the monitoring of the area where the thawing effect of the frozen coal is not good, targeted intermittent thawing is carried out.

[0049] Furthermore, the horizontal movement of the high-pressure nozzles is coordinated with the movement of the mobile gantry, and the high-pressure nozzles also cover the frozen coal in the longitudinal direction. In this way, the water jet forms a cross-crushing effect in both the horizontal and vertical directions, and the coal is cross-crushed into a grid shape. The size of each grid can be set according to the grid size of the tipping grate (such as 300x300). The spacing and moving distance of the high-pressure nozzles are adjusted to ensure that the size of the broken coal blocks is moderate. When the size of the coal blocks matches the grid of the tipping grate, the coal blocks can pass through the grate more smoothly and enter the next process.

[0050] At the same time, due to the impact of the water jet, the large pieces and hard pieces in the frozen coal can be effectively reduced, reducing the difficulty and cost of subsequent processing.

[0051] See also Figure 3 , the high-pressure nozzle assembly can be lifted and moved relative to the crossbeam, and its implementation method is existing, such as a motor screw lifting mechanism, the high-pressure nozzle assembly is close to the frozen coal in the coal carriage, and the design that the high-pressure nozzle assembly can be lifted and moved relative to the crossbeam enhances its ability to handle frozen coal at different depths. Specifically, first, after the jet water impacts the coal, it diffuses and flows into the coal gap to melt the ice, and can thaw a certain thickness of frozen coal. For example, when the nozzle is 50cm away from the surface of the coal, the jet water will first thaw the frozen coal on the surface, and gradually affect the frozen coal at a deeper level as the water diffuses and penetrates. However, due to the long distance, the thawing depth may be relatively limited. When the nozzle drops to 20cm from the surface of the coal, the jet water can more directly impact and penetrate into the frozen coal, thereby covering and thawing a larger range of frozen coal, including the frozen coal at the bottom. By reasonably adjusting the height position of the nozzle and the parameters of the jet water, the entire frozen coal can be effectively thawed within the depth range of the carriage.

[0052] As a preferred embodiment of the present application, the box body is connected to the antifreeze tank 10 through a pipeline, and the liquid medium is designed to be a mixture of water and antifreeze. In the design of the high-pressure nozzle assembly, the liquid medium in the box body is designed to be a mixture of water and antifreeze. First, the freezing point of water is lowered so that the mixture can remain liquid at a lower temperature, thereby effectively preventing the liquid sprayed into the coal from freezing rapidly during or after the thawing process. Second, when the mixture is sprayed onto the frozen coal and successfully thawed, the remaining antifreeze components will remain on the surface and inside of the coal, forming a protective layer, reducing the risk of refreezing of the coal blocks in a low-temperature environment, improving the thawing ability of the high-pressure nozzle assembly, and ensuring the stability of the treated coal in a low-temperature environment, providing convenience for subsequent transportation and processing.

[0053] As a preferred embodiment of the present application, the heat exchanger includes heat exchange tubes arranged in a serpentine / spiral shape in the box body. The use of heat exchange tubes arranged in a serpentine or spiral shape can maximize the heat exchange area, increase the contact time between the fluid and the tube wall and the heat exchange efficiency. The heat exchanger uses the steam generated on the train site as a heat source, which can come from the train's steam locomotive, boiler or other steam generating equipment. The steam is introduced into the heat exchange tubes through pipes, realizing the reuse of waste heat, which is both environmentally friendly and economical. As an alternative, the heat exchanger can also be set up independently.

[0054] Furthermore, the temperature T of the liquid medium after heat exchange by the heat exchanger satisfies 50°C≤T≤65°C. 50°C to 65°C is a relatively suitable temperature range. By accurately controlling the temperature of the liquid medium after heat exchange, the energy consumption can be reduced while ensuring the thawing effect. This helps to reduce the operating cost during the thawing process and improve economic benefits.

[0055] In addition, the working pressure of the high-pressure nozzle assembly is 200MPA ~ 480KPA. Under appropriate working pressure, the high-pressure nozzle assembly can generate sufficient water jet impact force to quickly penetrate the ice layer on the surface of the frozen coal and achieve efficient thawing. This helps to shorten the thawing time and improve processing efficiency. By accurately controlling the working pressure, it is possible to avoid energy waste and equipment wear caused by excessive pressure, or to avoid the impact pressure being too low due to the pressure being too low to effectively break the frozen coal. At the same time, a reasonable working pressure range can also help reduce operating costs and improve economic benefits.

[0056] As a preferred embodiment of the present application, the mobile gantry is also provided with an AI visual recognition device and an infrared thermal imaging device to monitor the thawing of the coal in the carriage, and accordingly control the high-pressure nozzle assembly to come to the unthawed area for impact crushing. The AI ​​visual recognition device and the infrared thermal imaging device are not shown in the figure. They are existing equipment, which can capture and display the temperature distribution of the coal in the carriage in real time. Since there is a significant temperature difference between the thawed coal and the unthawed coal, this feature makes the AI ​​visual recognition and infrared thermal imaging devices effective tools for monitoring the thawing situation. By analyzing the infrared thermal image, it is possible to accurately identify which areas of the coal in the carriage have been thawed and which areas are still frozen. This provides accurate positioning information for subsequent high-pressure nozzle assembly operations. Based on the monitoring results of the infrared thermal imaging device, the control system can intelligently dispatch the high-pressure nozzle assembly to the unthawed area for repeated impact operations. The high-pressure nozzle assembly impacts the frozen coal in an intermittent punching and crushing manner, effectively accelerating the thawing process and crushing large pieces of frozen coal.

[0057] Through the precise monitoring of infrared thermal imaging devices and the intelligent operation of high-pressure nozzle components, the need for manual intervention is reduced, the safety risks during the operation are reduced, and the efficiency of coal thawing and crushing can be significantly improved. This helps to shorten the thawing time, reduce energy consumption and costs. This solution has broad application prospects and promotion value in frozen coal unloading.

[0058] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0059] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A frozen coal ultra-high pressure liquid jet treatment device, arranged in front of a dumper, characterized in that: It includes a box body, a heat exchanger, an ultra-high pressure liquid jet device and a high-pressure nozzle assembly. The high-pressure nozzle assembly is arranged on the crossbeam of a movable gantry structure. The movable gantry is arranged above the coal transport carriage. The movable gantry structure can move along the length direction of the coal transport carriage. The liquid medium in the box body is pressurized by the ultra-high pressure water jet device and sprayed out through the high-pressure nozzle assembly after heat exchange and temperature rise in the heat exchanger, so as to impact the frozen coal to achieve the crushing of the frozen coal.

2. The frozen coal ultra-high pressure liquid jet treatment equipment according to claim 1, characterized in that: The high-pressure nozzle assembly includes a plurality of high-pressure nozzles evenly arranged along the crossbeam direction. The high-pressure nozzles are evenly arranged along the crossbeam direction. The high-pressure nozzles can move horizontally to expand the range of impacting frozen coal and ensure that the liquid medium can impact and crush against the inner wall of the coal transport carriage.

3. The frozen coal ultra-high pressure liquid jet treatment equipment according to claim 2, characterized in that: A plurality of high-pressure nozzles are arranged in a main pipeline, and the main pipeline is connected with the ultra-high-pressure liquid jet device through a pipeline.

4. The frozen coal ultra-high pressure liquid jet treatment equipment according to claim 1, characterized in that: The high-pressure nozzle assembly can be lifted and moved relative to the crossbeam to approach the frozen coal in the coal transport carriage to impact and crush the frozen coal at different depths.

5. The frozen coal ultra-high pressure liquid jet treatment equipment according to claim 1, characterized in that: The liquid medium in the box is a mixture of water and antifreeze.

6. The frozen coal ultra-high pressure liquid jet treatment equipment according to claim 1, characterized in that: The heat exchanger comprises heat exchange tubes arranged in a serpentine / spiral shape in a box body, and steam is passed into the heat exchange tubes to heat the liquid medium.

7. The frozen coal ultra-high pressure liquid jet treatment equipment according to claim 1, characterized in that: The temperature T of the liquid medium after heat exchange by the heat exchanger satisfies 50°C≤T≤65°C.

8. The frozen coal ultra-high pressure liquid jet treatment equipment according to claim 1, characterized in that: The working pressure of the high-pressure nozzle assembly is 200MPA-480MPA.

9. The frozen coal ultra-high pressure liquid jet treatment equipment according to claim 1, characterized in that: The high-pressure nozzle assembly performs intermittent impact cutting and crushing of the frozen coal / continuous jet impact cutting and crushing of the frozen coal.

10. The frozen coal ultra-high pressure liquid jet treatment equipment according to claim 1, characterized in that: The mobile gantry structure is also provided with an AI recognition device and an infrared thermal imaging device to monitor the thawing condition of the coal in the carriage, and accordingly control the high-pressure nozzle assembly to come to the unthawed area for repeated impact, cutting and crushing.

Images