Stock bin structure and coal bunker feeding system

Abstract

The invention relates to the technical field of material blending, and discloses a stock bin structure and a coal bunker feeding system.The stock bin structure comprises a stock bin, the interior of the stock bin is suitable for containing materials, various materials are contained in the stock bin in the gravity direction, and a discharging port is formed in the bottom of the stock bin and suitable for being communicated with a material using device; one end of the connecting pipe is connected to the side wall of the stock bin corresponding to the positions of different materials and communicates with the interior of the stock bin, the other end of the connecting pipe communicates with the material using device, and the connecting pipe has a communicating state allowing the materials to pass through and a closing state preventing the materials from passing through. According to the stock bin structure, the stock bin contains various materials in the gravity direction, and the connecting pipes are arranged at the positions corresponding to the different materials, so that the connecting pipes are controlled to be switched between the communicating state and the closing state according to needs, and therefore different kinds of materials are provided for the material using device.

Description

Technical Field

[0001] The invention relates to the technical field of material blending, and in particular to a silo structure and a coal silo feeding system. Background Art

[0002] Silos can be used to store materials and export them as needed. Take coal bunkers as an example. Due to the uncertainty of the power coal market, thermal power plants purchase a variety of fuels with varying coal quality, and even have to mix with low-quality fuels such as urban sludge. In actual production, due to frequent participation in power grid peak regulation, it is necessary to change the coal quality in a timely manner to meet the needs of the boiler to participate in power grid peak regulation. However, during the period when the coal in the coal bunker is burned out, it is impossible to change the coal quality in the middle. Therefore, when the coal quality needs to be changed to meet the needs of the boiler to participate in power grid peak regulation, the coal supply of the coal bunker has almost no flexibility. Summary of the invention

[0003] In view of this, the present invention provides a bunker structure and a coal bunker feeding system to solve the problem that there is almost no flexibility in the coal supply of the coal bunker when the coal quality needs to be changed.

[0004] In a first aspect, the present invention provides a silo structure, comprising:

[0005] A silo, the interior of which is suitable for accommodating materials. Along the gravity direction, the silo accommodates a variety of materials. A discharge port is provided at the bottom of the silo, and the discharge port is suitable for being connected to a material device;

[0006] At least one connecting pipe has one end connected to the side wall of the silo corresponding to the position of different materials and communicated with the interior of the silo, and the other end connected to the material device. The connecting pipe has a connected state allowing materials to pass through, and a closed state preventing materials from passing through.

[0007] Beneficial effects: The silo accommodates a variety of materials along the gravity direction, and connecting pipes are provided at positions corresponding to different materials, so that the connecting pipes can be controlled to switch between a connected state and a closed state as needed, thereby providing different types of materials to the material-using device.

[0008] In an optional embodiment, the silo structure further includes a material position detection system, and the material position detection system is suitable for detecting the relative position of different types of materials and the silo.

[0009] Beneficial effect: By detecting the relative positions of different types of materials in the silo, the operator can refer to the position of the required material and purposefully operate to open the connecting pipe corresponding to its position, thereby improving operability.

[0010] In an optional embodiment, the material position detection system includes a material type detection device, a feed metering device, a discharge metering device, a processor and a display, the material type detection device and the feed metering device are arranged at the feed port of the silo, and the discharge metering device is arranged at the material device;

[0011] The material type detection device, the feed metering device and the discharge metering device are electrically connected to the processor, and the processor is electrically connected to the display so as to be suitable for displaying the positions of different types of materials in the silo on the display.

[0012] Beneficial effect: By displaying the relative positions of different materials on the display, operators can intuitively observe the relative positions of different types of materials and connecting pipes.

[0013] In an optional embodiment, the material position detection system further includes a material position checking device, which is disposed on the top of the silo to be suitable for checking the falling distance of the material inside the silo.

[0014] Beneficial effect: By arranging the material position inspection device on the top of the silo to detect the falling distance of the material, the data obtained by the feed metering device and the discharge metering device can be verified, which is conducive to improving the accuracy of the display.

[0015] In an optional embodiment, a first valve is provided on the connecting pipe, which is suitable for controlling the connecting pipe to switch between a connected state and a closed state through the first valve.

[0016] In an optional embodiment, a second valve is provided at the discharge port, adapted to allow or prevent the material from entering the material-consuming device through the discharge port.

[0017] In an optional embodiment, a material delivery pipe is connected between the discharge port and the material use device, so as to be suitable for introducing the material in the silo into the material use device.

[0018] In an optional embodiment, the other end of the connecting pipe is connected to the material conveying pipe.

[0019] In a second aspect, the present invention further provides a coal bunker feeding system, comprising: the above-mentioned bunker structure, whose accommodating cavity is suitable for storing coal, and the feeding device is configured as a boiler.

[0020] Since the coal bunker feeding system includes the bunker structure and has the same effects as the bunker structure, its beneficial effects will not be described in detail here.

[0021] In an optional embodiment, the coal bunker feeding system further includes a coal feeder, which is disposed between the bunker structure and the boiler and is suitable for conveying the coal in the bunker structure to the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The present invention is a schematic structural diagram of a silo structure and a coal silo feeding system according to an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 1. Silo; 101. First type of coal; 102. Second type of coal; 103. Feed port; 104. Discharge port; 2. Connecting pipe; 3. First valve; 4. Second valve; 5. Coal feeder; 501. Coal feeder outlet; 6. Feed pipe; 7. Conveyor belt; 8. Material type detection equipment; 9. Feed metering equipment. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] Combine the following Figure 1 , describing an embodiment of the present invention.

[0028] According to an embodiment of the present invention, on the one hand, a silo structure is provided, comprising:

[0029] The silo 1 is suitable for accommodating materials. Along the gravity direction, the silo 1 accommodates a variety of materials. The bottom of the silo 1 is provided with a discharge port 104, which is suitable for being connected to a material device;

[0030] At least one connecting pipe 2 has one end connected to the side wall of the silo 1 corresponding to the position of different materials and communicated with the interior of the silo 1, and the other end connected to the material device. The connecting pipe 2 has a connected state allowing materials to pass through, and a closed state preventing materials from passing through.

[0031] The silo structure provided in this embodiment has a silo 1 that accommodates a variety of materials along the direction of gravity, and a connecting pipe 2 is provided at the position corresponding to different materials, so that the connecting pipe 2 can be controlled to switch between a connected state and a closed state as needed, thereby providing different types of materials to the material using device and improving the flexibility of replacing materials.

[0032] Specifically, the silo 1 has a accommodating chamber for accommodating materials, and multiple materials are distributed in the accommodating chamber along the gravity direction, and two adjacent materials are in direct contact. When the number of connecting pipes 2 is multiple, at least two connecting pipes 2 are spaced apart in the height direction. The discharge port 104 has an open state that allows materials to pass through, and a blocked state that prevents materials from passing through. When the silo 1 is initially filled with materials, the discharge port 104 is in a blocked state, and different types of materials are filled into the silo 1 in turn, and the connecting pipe 2 and the discharge port 104 correspond to different types of materials respectively. When a specific type of material is needed, the discharge port 104 or the connecting pipe 2 at the corresponding position is opened to provide the specific type of material to the material device.

[0033] When one of the materials is completely discharged through the discharge port 104 or the connecting pipe 2, the material or the required material can be continuously filled at the feed port 103. In addition, filling a plurality of materials in one silo 1 can reduce the number of silos 1 required when the number of required materials is constant, and can store more types of materials when the number of silos 1 is constant.

[0034] In one embodiment, the silo structure further includes a material position detection system, which is suitable for detecting the relative positions of different types of materials and the silo 1 .

[0035] The silo structure provided in this embodiment detects the relative positions of different types of materials in the silo 1, so that the operator can refer to the position of the required material and purposefully operate to open the connecting pipe 2 corresponding to its position, thereby improving operability.

[0036] In one embodiment, in combination Figure 1 As shown, the material position detection system includes a material type detection device 8, a feed metering device 9, a discharge metering device, a processor and a display. The material type detection device 8 and the feed metering device 9 are arranged at the feed port 103 of the silo 1, and the discharge metering device is arranged at the material device;

[0037] The material type detection device 8, the feed metering device 9 and the discharge metering device are electrically connected to the processor, and the processor is electrically connected to the display so as to be suitable for displaying the positions of different types of materials in the silo 1 on the display.

[0038] The silo structure provided in this embodiment displays the relative positions of different materials on a display, so that operators can intuitively observe the relative positions of different types of materials and the connecting pipe 2.

[0039] Specifically, the corresponding material type detection equipment 8, feed metering equipment 9 and discharge metering equipment are selected according to the type of material actually filled. For example, taking the filling of coal of different coal qualities as an example, the material type detection equipment 8 is selected as the coal quality detection equipment, and the feed metering equipment 9 and the discharge metering equipment are selected as the coal quantity metering equipment and the coal quantity inspection equipment respectively.

[0040] A material type detection device 8 and a feed metering device 9 are provided at the feed port 103 to detect the order and volume of various materials filled in the feed bin 1, and the material type detection device 8 and the feed metering device 9 are electrically connected to the processor to transmit the entry order and volume information of various materials to the processor. A discharge metering device is provided at the material device to detect the discharge amount of the material, and the discharge metering device is electrically connected to the processor to transmit the discharge amount information of the material to the processor.

[0041] The processor pre-stores the shape and size information of the accommodating cavity of the silo 1, as well as the position information of the connecting pipe 2 on the silo 1. After calculation and analysis by the processor, the relative positions of various materials with the silo 1 and the connecting pipe 2 are obtained, and these data are used to generate a visual dynamic model of the flow of different materials and the time-varying positions on the display screen, so that the positions of various materials can be seen at any time, thereby providing convenience for guiding the operation of operators.

[0042] In some embodiments not shown, at least one material type detection device 8 is provided on the inner wall of the silo 1 at a position corresponding to the inlet of each connecting pipe 2. The material type detection device 8 is electrically connected to the display so as to be suitable for displaying the material type at the inlet of each connecting pipe 2 on the display, thereby facilitating the operator to open or close the corresponding connecting pipe 2 as needed.

[0043] In one embodiment, the material position detection system further includes a material position checking device, which is disposed on the top of the silo 1 to check the falling distance of the material inside the silo 1 .

[0044] The silo structure provided in this embodiment is conducive to improving the accuracy of the display by arranging a material position inspection device on the top of the silo 1 to detect the falling distance of the material, so as to verify the data obtained by the feed metering device 9 and the discharge metering device.

[0045] Specifically, the material position checking device is used to detect the height of the uppermost material in the silo 1 and is electrically connected to the processor to transmit the height information of the material falling to the processor so that the processor can verify the results of its analysis and calculation.

[0046] In one embodiment, in combination Figure 1 As shown, a first valve 3 is provided on the connecting pipe 2, which is suitable for controlling the connecting pipe 2 to switch between a connected state and a closed state through the first valve 3.

[0047] In one embodiment, in combination Figure 1 As shown, a second valve 4 is provided at the discharge port 104 to allow or prevent the material from entering the material-consuming device through the discharge port 104 .

[0048] In one embodiment, in combination Figure 1 As shown, a material delivery pipe 6 is connected between the discharge port 104 and the material using device, so as to be suitable for introducing the material in the silo 1 into the material using device.

[0049] In one embodiment, in combination Figure 1 As shown, the other end of the connecting pipe 2 is connected to the material conveying pipe 6.

[0050] In some implementations not shown, a plurality of inlets may be provided on the material-using device, so that the material outlet 104 and the connecting pipe 2 are respectively connected to the material-using device.

[0051] According to an embodiment of the present invention, on the other hand, a coal bunker feeding system is provided, comprising: the above-mentioned bunker structure, wherein the accommodating cavity is suitable for storing coal, and the feeding device is configured as a boiler.

[0052] Specifically, at least one silo structure is connected to the boiler. When multiple silo structures are connected to the boiler, different silos can output coal of different coal qualities to achieve the blending of different coal qualities and provide them to the boiler. In the actual production of thermal power plants, due to the frequent participation in grid peak regulation, it is necessary to change the coal quality in a timely manner to meet the needs of the boiler to participate in grid peak regulation. The coal bunker feeding system provided by the present embodiment can improve the flexibility of coal bunker supply, thereby improving the ability of thermal power generating units in the related art to participate in grid peak regulation and meet the urgent requirements of the power market.

[0053] Take the case where two kinds of coal are stored in the silo 1, i.e., the first type of coal 101 and the second type of coal 102. The first type of coal 101 and the second type of coal 102 are sequentially filled into the feed silo 1 through the feed port 103. The first type of coal 101 is suitable for entering the material device through the discharge port 104, and the second type of coal 102 is suitable for entering the material device through the connecting pipe 2, so as to change the coal quality supplied to the material device as needed. After the first type of coal 101 is completely discharged through the discharge port 104, the first type of coal 101 can be filled into the silo 1 so that the first type of coal 101 is located above the second type of coal 102. At this time, the second type of coal 102 enters the material device through the discharge port 104, and the first type of coal 101 enters the material device through the connecting pipe 2, and can be circulated in this way.

[0054] In one embodiment, in combination Figure 1 As shown, the coal bunker feeding system further comprises a coal feeder 5, which is arranged between the bunker structure and the boiler so as to be suitable for conveying the coal in the bunker structure to the boiler.

[0055] Specifically, the discharge port of the silo 1 and the connecting pipe 2 are directly connected to the coal feeder 5, or are connected to the inlet of the coal feeder 5 through the conveying pipe 6. The coal feeder 5 has a coal feeder outlet 501, which is connected to the boiler. A conveyor belt 7 is arranged inside the coal feeder 5, one end of which is located below the inlet of the coal feeder 5, and the other end is located above the coal feeder outlet 501, so as to transport the coal entering from the inlet of the coal feeder 5 to the coal feeder outlet 501 and drop it into the boiler.

[0056] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A silo structure, characterized in that: include: A silo (1) having an interior suitable for accommodating materials. Along the gravity direction, the silo (1) accommodates a plurality of materials. A discharge port (104) is provided at the bottom of the silo (1), and the discharge port (104) is suitable for being connected to a material device. At least one connecting pipe (2), one end of which is connected to the side wall of the silo (1) corresponding to the position of different materials and is connected to the interior of the silo (1), and the other end is connected to the material device, and the connecting pipe (2) has a connected state allowing the material to pass through, and a closed state preventing the material from passing through.

2. The silo structure according to claim 1, characterized in that: The silo structure also includes a material position detection system, which is suitable for detecting the relative position of different types of materials and the silo (1).

3. The silo structure according to claim 2, characterized in that: The material position detection system comprises a material type detection device (8), a feed metering device (9), a discharge metering device, a processor and a display, wherein the material type detection device (8) and the feed metering device (9) are arranged at a feed inlet (103) of the silo (1), and the discharge metering device is arranged at the material using device; The material type detection device (8), the feed metering device (9) and the discharge metering device are electrically connected to the processor, and the processor is electrically connected to the display so as to be suitable for displaying the positions of the different types of materials in the silo (1) on the display.

4. The silo structure according to claim 3, characterized in that: The material position detection system further comprises a material position checking device, which is arranged on the top of the silo (1) and is suitable for checking the falling distance of the material inside the silo (1).

5. The silo structure according to claim 1, characterized in that: The connecting pipe (2) is provided with a first valve (3), which is suitable for controlling the connecting pipe (2) to switch between the connected state and the closed state through the first valve (3).

6. The silo structure according to claim 1, characterized in that: A second valve (4) is provided at the material outlet (104) to allow or prevent the material from entering the material-using device through the material outlet (104).

7. The silo structure according to claim 1, characterized in that: A material delivery pipe (6) is connected between the material outlet (104) and the material using device, so as to be suitable for introducing the material in the material bin (1) into the material using device.

8. The silo structure according to claim 7, characterized in that: The other end of the connecting pipe (2) is connected to the material conveying pipe (6).

9. A coal bunker feeding system, characterized in that: include: The silo structure according to any one of claims 1 to 8, wherein the accommodating cavity is suitable for storing coal, and the material device is configured as a boiler.

10. The coal bunker feeding system according to claim 9, characterized in that: The coal bunker feeding system further comprises a coal feeder (5), which is arranged between the bunker structure and the boiler and is suitable for conveying the coal in the bunker structure to the boiler.

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