Coal quantitative loading device and control method

Abstract

The present application belongs to the technical field of coal quantitative transportation, in particular to a coal quantitative loading device and control method, which comprises a buffer bin, a feeding gate assembly and a metering bin. A weighing assembly is installed on the outside of the metering bin, which is used to weigh the weight of the metering bin. The feeding gate assembly is movably installed at the bottom of the buffer bin. The feeding gate assembly comprises multiple feeding plates movably installed at the bottom of the buffer bin. When the tonnage of the metering bin reaches 95% of the loading target value, all the feeding plates are closed, and then different feeding plates are opened and closed in groups in a cycle. This avoids the blockage of the feeding plates by accumulated coal. Each single feeding plate is rotated to open, and the edges of the feeding plates rub against the coal mass, which makes the coal on the edges of the feeding plates fall off. When multiple feeding plates are opened in groups in a cycle, the action interval of a single group of feeding plates is short, which allows the coal flow to fall for a certain time and allows the feeding plates to be scraped for a certain time, so that the wet coal has no chance to reattach.

Description

Technical Field

[0001] This invention belongs to the field of quantitative coal transportation, specifically a quantitative coal loading device and control method. Background Technology

[0002] The typical procedure for loading coal into wagons involves pouring the coal stream into the wagons via a conveyor system, and then transporting the coal out of the wagons. To further ensure precise coal transportation, it is usually necessary to quantitatively measure the coal loaded into the wagons to ensure that the amount of coal transported out of the wagons each time is within a set range.

[0003] A patent document with announcement number CN205471723U discloses a coal discharge device for a train rapid quantitative loading station, which includes a loading chute and a coal discharge chute. A guide chute is provided below the coal discharge chute. The bottom end of the coal discharge chute is hinged to one end of the guide chute. A hydraulic cylinder is provided between the middle of the side wall of the guide chute and the side wall of the coal discharge chute. At least one support frame is hinged to the side wall of the coal discharge chute on the side adjacent to the loading chute. A coal funnel is provided below the other end of the guide chute.

[0004] In traditional technology, coal is first poured into a buffer silo. Then, by opening the silo's gate, the coal flows into a metering silo. The metering silo measures the tonnage of the coal flow. Once a target value is reached, the metering silo opens its bottom gate to load the coal into trucks for transport. However, in this process, when the buffer silo is full, a large amount of coal flows into the metering silo when the gate is opened. If the buffer silo gate is not closed in time, metering overload will occur. The design of the buffer silo gate cannot guarantee metering accuracy. Furthermore, when the buffer silo gate is discharging coal, problems such as coal blockage and obstructed coal flow are prone to occur at the feed port, requiring manual intervention.

[0005] Therefore, the present invention provides a coal quantitative loading device and control method to solve the problems mentioned in the background art. Summary of the Invention

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a coal quantitative loading device, comprising a building structure and a transport component installed on the side of the building structure. The bottom of the building structure has a loading inlet / outlet for the loading car to enter. A buffer chamber is fixedly installed on the inner top of the building structure. A feeding gate assembly for unloading is installed at the bottom of the buffer chamber. A metering chamber is also installed inside the building structure, located below the buffer chamber, for metering the coal unloaded from the buffer chamber. A weighing component is installed on the outside of the metering chamber for weighing the weight of the metering chamber. A standard weight is also installed inside the building structure for calibrating the weighing component.

[0007] A feed gate assembly is movably installed at the bottom of the buffer chamber. The feed gate assembly includes multiple feed plates movably installed at the bottom of the buffer chamber. An integrated electrical box is installed on one side of the bottom of the buffer chamber. The integrated electrical box is fixedly installed inside the building structure. The integrated electrical box integrates drive, pneumatic and controller structures. A discharge gate assembly is installed at the bottom of the metering chamber. The discharge gate assembly is used to control the discharge switch of the metering chamber to the loading chute.

[0008] Preferably, the interior of the building structure has three component cavities arranged sequentially from top to bottom: component cavity one, component cavity two, and component cavity three. The loading chute is located inside the loading inlet / outlet, and the loading inlet / outlet is connected to component cavity three.

[0009] Preferably, the weighing assembly includes multiple weighing plates installed on the outside of the metering chamber and multiple fixing plates fixedly installed above the bottom side of the component cavity, with weighing sensors fixedly installed between the multiple weighing plates and the multiple fixing plates.

[0010] Preferably, semi-circular strips are installed on both sides of the feed plate, and connecting shafts are installed at both ends of the feed plate. The two connecting shafts are rotatably installed at the inner bottom of the buffer chamber, and bearings are movably installed on the outer side of the connecting shafts.

[0011] Preferably, a drive shaft is installed at one end of the connecting shaft, the drive shaft is driven and controlled by an integrated electrical box, and a connecting air pipe is installed on the outside of the connecting shaft, the connecting air pipe is pneumatically controlled by the integrated electrical box.

[0012] Preferably, a conveying pipe is installed inside the feed plate, one end of the conveying pipe extends into the connecting shaft and is connected to the connecting air pipe, and multiple branch pipes are installed on both sides of the conveying pipe.

[0013] Preferably, an anti-clogging and anti-sticking component is installed on the outer side of the feed plate. The anti-clogging and anti-sticking component includes a semi-circular groove inside the semi-circular strip and multiple holes and slots on the side of the semi-circular strip. The multiple holes and slots are connected to the semi-circular groove. A semi-circular airbag strip is fixedly installed inside the semi-circular groove. The semi-circular airbag strip is connected to multiple branch pipes. The anti-clogging and anti-sticking component also includes a reciprocating vibration component fixedly installed inside the multiple holes and slots. The multiple reciprocating vibration components are connected to the semi-circular airbag strip.

[0014] Preferably, the reciprocating vibration component includes an airbag ring fixedly connected to the slot and the semi-circular airbag strip, and an elastic ring 1 fixedly installed inside the outward side of the airbag ring. A rigid ring 1 is fixedly installed inside the elastic ring 1, an elastic ring 2 is fixedly installed inside the rigid ring 1, a rigid ring 2 is fixedly installed inside the elastic ring 2, an elastic ring 3 is fixedly installed inside the rigid ring 2, and a rigid ring 3 is fixedly installed inside the elastic ring 3.

[0015] A control method for a coal quantitative loading device, the method employing the aforementioned coal quantitative loading device, includes the following steps:

[0016] Step 1: The coal is transported by the transport components to the buffer silo set up at the top of the building structure for initial storage;

[0017] Step 2: When the coal level inside the buffer silo reaches or exceeds 15%, multiple feed plates are all opened via the integrated electrical box, and the coal flow quickly enters the metering silo.

[0018] Step 3: Weigh the metering bin using the weighing function of the weighing component. When the tonnage of the metering bin reaches 80% of the target loading value, close half of the feed plates and continue to feed coal from the remaining feed plates, slowing down the coal feeding rate.

[0019] Step 4: When the tonnage in the metering bin reaches 95% of the target loading value, close all feed plates, and then open each individual feed plate in turn to avoid coal accumulation and blockage.

[0020] Step 5: Once the tonnage measurement inside the metering bin reaches the set requirement, close all feed plates, open the unloading gate assembly, and the coal falls into the car body through the loading chute to begin the loading operation.

[0021] Step Six: During the loading operation, coal continuously flows into the feed gate assembly. After the current car is loaded and the metering bin is emptied, coal is fed into the metering bin again, and the operation is repeated.

[0022] Preferably, the buffer silo is equipped with a height sensor for measuring the coal accumulation height. When the multiple feed plates are opened in a cyclical manner, the opening angle of the feed plates gradually decreases as the difference between the actual tonnage of the metering silo and the target loading value decreases.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. The coal quantitative loading device and control method of the present invention involves transporting coal through a transport component to a buffer silo located at the top of a building structure for initial accumulation. When the coal level in the buffer silo reaches or exceeds 15%, multiple feed plates are opened via an integrated electrical box, allowing the coal flow to rapidly enter the metering silo. The metering silo is then weighed using a weighing component. When the metering silo reaches 80% of the target loading value, half of the feed plates are closed, while the remaining feed plates continue to release coal at a slower rate. Once the metering silo reaches the set tonnage requirement, all feed plates are closed, and the unloading gate assembly is opened, allowing coal to fall into the car body via a loading chute, initiating the loading operation. During the loading operation, the coal flow continuously enters the feed gate assembly. After the current car body is loaded and the metering silo is emptied, coal is released into the metering silo again to complete the next round of metering operations, ensuring a continuous and efficient loading process.

[0025] 2. The coal quantitative loading device and control method of the present invention, when the tonnage of the metering bin reaches 80% of the target loading value, closes half of the feed plates, while the remaining feed plates continue to release coal, slowing down the coal release rate. When the tonnage of the metering bin reaches 95% of the target loading value, all feed plates are closed. Subsequently, the individual feed plates are opened and closed in a cyclical manner to avoid coal accumulation and blockage on the feed plates. Each time a single feed plate is rotated and opened, the edge of the feed plate rubs against the coal clump, which removes the coal adhering to the edge of the feed plate. When multiple feed plates are opened and closed in a cyclical manner, the interval between the actions of a single feed plate is short, allowing the coal flow time to fall and the feed plates time to scrape back, preventing wet coal from re-adhering, thereby avoiding problems such as coal blockage and poor coal discharge at the buffer bin discharge position. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Figure 1 This is a three-dimensional view of the entire invention;

[0028] Figure 2 This is a three-dimensional schematic diagram of the buffer chamber, metering chamber, and loading chute in this invention;

[0029] Figure 3 This is a side view of the buffer chamber, metering chamber, and loading chute in this invention;

[0030] Figure 4 This is a three-dimensional schematic diagram of the first state of the feed plate in this invention;

[0031] Figure 5 This is a three-dimensional schematic diagram of the second state of the feed plate in this invention;

[0032] Figure 6 This is a three-dimensional schematic diagram of the feed plate and the anti-clogging and anti-sticking component in this invention;

[0033] Figure 7 This is a three-dimensional schematic diagram of the delivery pipe and branch pipe in this invention;

[0034] Figure 8 This is a three-dimensional schematic diagram of the anti-clogging and anti-adhesion component in this invention;

[0035] Figure 9 This is a three-dimensional schematic diagram of the semi-circular airbag strip and the reciprocating vibration component in this invention;

[0036] Figure 10 This is a three-dimensional schematic diagram of the reciprocating vibration component in this invention.

[0037] In the diagram: 1. Building structure; 11. Transportation components; 12. Loading inlet / outlet; 13. Component cavity one; 14. Component cavity two; 15. Component cavity three; 2. Buffer chamber; 21. Integrated electrical box; 3. Feed gate assembly; 4. Weighing assembly; 41. Weighing plate; 42. Weighing sensor; 43. Fixing plate; 5. Metering chamber; 6. Unloading gate assembly; 7. Loading chute; 8. Feed plate; 81. Semicircle 82. Connecting shaft; 83. Drive shaft; 84. Connecting air pipe; 85. Delivery pipe; 86. Branch pipe; 9. Anti-clogging and anti-sticking component; 91. Hole and groove; 92. Semi-circular groove; 93. Semi-circular airbag strip; 94. Reciprocating vibration component; 941. Airbag ring; 942. Elastic ring one; 943. Hard ring one; 944. Elastic ring two; 945. Hard ring two; 946. Elastic ring three; 947. Hard ring three. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] Example 1: As Figures 1-5 As shown, a coal quantitative loading device according to an embodiment of the present invention includes a building structure 1 and a transport component 11 installed on the side of the building structure 1. The bottom of the building structure 1 is provided with a loading inlet / outlet 12 for the loading car to enter. A buffer chamber 2 is fixedly installed on the inner top of the building structure 1. A feeding gate component 3 for discharging is installed on the bottom of the buffer chamber 2. A metering chamber 5 is also installed inside the building structure 1. The metering chamber 5 is located below the buffer chamber 2 and is used to meter the coal discharged from the buffer chamber 2. A weighing component 4 is installed on the outside of the metering chamber 5. The weighing component 4 is used to weigh the weight of the metering chamber 5. A standard weight is also installed inside the building structure 1. The standard weight is used to calibrate the weighing component 4.

[0040] A feed gate assembly 3 is movably installed inside the bottom of the buffer chamber 2. The feed gate assembly 3 includes multiple feed plates 8 movably installed inside the bottom of the buffer chamber 2. An integrated electrical box 21 is installed on one side of the bottom of the buffer chamber 2. The integrated electrical box 21 is fixedly installed inside the building structure 1. The integrated electrical box 21 integrates drive, pneumatic and controller structures. A discharge gate assembly 6 is installed inside the bottom of the metering chamber 5. The discharge gate assembly 6 is used to control the discharge switch of the metering chamber 5 to the loading chute 7.

[0041] Specifically, the opening and closing of multiple feed plates 8, the weighing data of the weighing component 4, and the height scanning of the buffer bin 2 are all connected to the controller structure inside the integrated electrical box 21. The coal flow is transported through the transport component 11 to the buffer bin 2 set at the top of the building structure 1 for initial accumulation. When the coal level inside the buffer bin 2 reaches or exceeds 15%, all multiple feed plates 8 are driven to open through the integrated electrical box 21, and the coal flow quickly enters the metering bin 5. The weighing function of the weighing component 4 is used to measure the coal in the metering bin 5. When the metering bin 5 reaches 80% of the loading target, half of the feed plates 8 are closed, while the remaining feed plates 8 continue to discharge coal at a slower rate. When the metering bin 5 reaches 95% of the loading target, all feed plates 8 are closed. Subsequently, individual feed plates 8 are opened and closed in a cyclical manner to prevent coal accumulation and blockage. Once the metering bin 5 reaches the set tonnage, all feed plates 8 are closed, the unloading gate assembly 6 is opened, and the coal falls into the truck bed via the loading chute 7, commencing the loading operation. During the loading operation, coal continuously flows into the feed gate assembly 3. After the current car is loaded and the metering bin 5 is emptied, coal is fed into the metering bin 5 again to complete the next round of metering operations, ensuring a continuous and efficient loading process. In this device, eight sets of feed plates 8 are set. When the metering bin 5 reaches 80% of the loading target value, four sets of feed plates 8 open to continuously feed coal, while the other four sets of feed plates 8 close. This method slows down the coal feeding rate and avoids the situation where all eight sets of feed plates are feeding when the metering bin 5 reaches 80% of the loading target value. In the event of overload due to failure to close plate 8 in time, the method of opening individual feed plates 8 in a group-by-group cycle is used. Each time a single feed plate 8 is opened, its edge rubs against the coal clump, causing the coal stuck to the edge of the feed plate 8 to be rubbed off. When multiple feed plates 8 are opened in a group-by-group cycle, the interval between the actions of a single group of feed plates 8 is short, allowing the coal flow time to fall and the feed plates 8 time to scrape back, preventing wet coal from re-adhering and thus avoiding problems such as coal blockage and poor coal discharge at the feed position of buffer bin 2.

[0042] like Figures 2-3 As shown, the interior of the building structure 1 has component cavity 13, component cavity 2 14 and component cavity 3 15 arranged from top to bottom. The loading chute 7 is located inside the loading inlet / outlet 12, and the loading inlet / outlet 12 is connected to component cavity 3 15.

[0043] The weighing assembly 4 includes multiple weighing plates 41 installed on the outside of the metering chamber 5 and multiple fixing plates 43 fixedly installed on the bottom side of the component cavity 14. Weighing sensors 42 are fixedly installed between the multiple weighing plates 41 and the multiple fixing plates 43.

[0044] Specifically, the outer side of the metering chamber 5 is fixedly connected to multiple weighing plates 41. When the buffer chamber 2 discharges coal into the metering chamber 5 through the opening of the feed gate assembly 3, the weight of the metering chamber 5 will increase. At this time, the multiple weighing plates 41 will exert a downward pressure on the fixed plate 43, and this downward pressure will be measured by the weighing sensor 42. The measured data minus the weight of the metering chamber 5 itself is the weight of the coal inside the metering chamber 5. When the weight of the coal inside the metering chamber 5 reaches the standard, subsequent quantitative loading can be carried out.

[0045] like Figures 4-7 As shown, semi-circular strips 81 are installed on both sides of the feed plate 8, and connecting shafts 82 are installed at both ends of the feed plate 8. The two connecting shafts 82 are rotatably installed at the bottom of the buffer chamber 2, and bearings are movably installed on the outer side of the connecting shafts 82.

[0046] A drive shaft 83 is installed at one end of the connecting shaft 82. The drive shaft 83 is driven and controlled by the integrated electrical box 21. A connecting air pipe 84 is installed on the outside of the connecting shaft 82. The connecting air pipe 84 is pneumatically controlled by the integrated electrical box 21.

[0047] Specifically, the electric drive structure inside the integrated electrical box 21 allows multiple feed plates 8 to be controlled individually, thereby completing the opening and closing states of 90-degree reciprocating rotation. When the feed plate 8 is in a horizontal state, it is in a closed state, and when the feed plate 8 is in a vertical state, it is in an open state. Semicircular strips 81 are provided on both sides of the feed plate 8. The semicircular strips 81 make the opening and closing of the eight sets of feed plates 8 more compact and reduce mutual friction.

[0048] Example 2: Figures 7-10 As shown in the first embodiment, another embodiment of the present invention is as follows: a conveying pipe 85 is installed inside the feed plate 8, one end of the conveying pipe 85 extends into the inside of the connecting shaft 82 and is connected to the connecting air pipe 84, and multiple branch pipes 86 are installed on both sides of the conveying pipe 85.

[0049] An anti-clogging and anti-adhesion component 9 is installed on the outer side of the feed plate 8. The anti-clogging and anti-adhesion component 9 includes a semi-circular groove 92 opened inside the semi-circular strip 81 and multiple holes and slots 91 opened on the side of the semi-circular strip 81. The multiple holes and slots 91 are connected to the semi-circular groove 92. A semi-circular airbag strip 93 is fixedly installed inside the semi-circular groove 92. The semi-circular airbag strip 93 is connected to multiple branch pipes 86. The anti-clogging and anti-adhesion component 9 also includes a reciprocating vibration component 94 fixedly installed inside the multiple holes and slots 91. The multiple reciprocating vibration components 94 are connected to the semi-circular airbag strip 93.

[0050] The reciprocating vibration component 94 includes an airbag ring 941 fixedly connected to the slot 91 and the semi-circular airbag strip 93, and an elastic ring 942 fixedly installed inside the outward side of the airbag ring 941. A rigid ring 943 is fixedly installed inside the elastic ring 942. An elastic ring 944 is fixedly installed inside the rigid ring 943. A rigid ring 945 is fixedly installed inside the elastic ring 944. An elastic ring 946 is fixedly installed inside the rigid ring 945. A rigid ring 947 is fixedly installed inside the elastic ring 946.

[0051] Specifically, when the eight sets of feed plates 8 are opened and closed in a cyclical manner, the sticky coal on the outside of the semicircular bar 81 can be scraped off, preventing wet coal from re-adhering. This is achieved by the rotation of the feed plates 8 causing the outer side of the semicircular bar 81 to scrape against the coal powder at the bottom of the buffer bin 2. However, the sticky and wet coal on the outside of the semicircular bar 81 is generally quite compacted, and cleaning it by scraping will also cause slight damage to the outer side of the semicircular bar 81. Over time, this will affect the opening and closing of multiple feed plates 8, thereby reducing the efficiency of subsequent quantitative coal loading. In this device, when the feed plates 8 move towards... When the rotary mechanism opens and closes, gas is introduced into the connecting air pipe 84 through the pneumatic structure inside the integrated electrical box 21. The gas enters the interior of the semi-circular airbag strip 93 through the connecting shaft 82, the delivery pipe 85, and multiple branch pipes 86. The gas accumulates inside the semi-circular airbag strip 93 and then enters the interior of the airbag ring 941. The airbag ring 941 is a rigid structure and will not deform until the gas impacts the outward side of the airbag ring 941. Because the rigid ring 943, the rigid ring 945, and the rigid ring 947 are rigidly designed, they will not deform when the gas accumulates and impacts. However, at this time, the elasticity... Ring 1 (942), elastic ring 2 (944), and elastic ring 3 (946) will undergo elastic deformation, meaning that hard ring 1 (943), hard ring 2 (945), and hard ring 3 (947) will all move outward from inside the slot 91, thus pushing the coal adhering to and wet on the outside of the semicircular bar 81. Among them, hard ring 3 (947) moves the greatest distance, while hard ring 1 (943) moves the least. Under the multi-stage movement of hard ring 1 (943), hard ring 2 (945), and hard ring 3 (947), the coal adhering to and wet on the outside of the semicircular bar 81 can be better pushed. This is achieved by the rapid pumping in and out of the air pump inside the integrated electrical box 21. This causes multiple anti-blocking and anti-sticking components 9 to reciprocate, thereby generating a certain vibration effect on the coal stuck to and wet coal on the outside of the semi-circular bar 81. Under these conditions, the instantaneous inertial force of the three hard rings 943, 945, and 947 is greater than the capillary adhesion force between the coal powder and the semi-circular bar 81. Combined with the scraping action, the already stuck wet coal particles are more likely to detach from the outside of the semi-circular bar 81. Furthermore, the vibration of the three hard rings 943, 945, and 947 causes the coal particles to be in a state of slight jumping, significantly reducing the internal friction angle. The wet coal changes from being caked to being loose, which can effectively prevent coal sticking and blockage.

[0052] A control method for a coal quantitative loading device, the method employing the aforementioned coal quantitative loading device, includes the following steps:

[0053] Step 1: The coal flows through the transport component 11 and is transported to the buffer silo 2 set at the top of the building structure 1 for initial storage;

[0054] Step 2: When the coal level inside the buffer bin 2 reaches or exceeds 15%, multiple feed plates 8 are all opened by the integrated electrical box 21, and the coal flow quickly enters the metering bin 5.

[0055] Step 3: Weigh the metering bin 5 using the weighing function of the weighing component 4. When the tonnage of the metering bin 5 reaches 80% of the target loading value, close half of the feed plates 8, and continue to feed coal from the remaining feed plates 8, thus slowing down the coal feeding rate.

[0056] Step 4: When the metering bin reaches 95% of the target loading value of 5 tons, close all feed plates 8, and then open each different feed plate 8 in a cycle to avoid coal accumulation and blockage on the feed plates 8.

[0057] Step 5: Once the tonnage measurement inside the metering bin 5 reaches the set requirement, close all feed plates 8, open the unloading gate assembly 6, and the coal falls into the car body through the loading chute 7 to begin the loading operation.

[0058] Step Six: During the loading operation, coal continuously flows into the feed gate assembly 3. After the current car is loaded and the metering bin 5 is emptied, coal is fed into the metering bin 5 again, and the operation is repeated.

[0059] The buffer bin 2 is equipped with a height sensor for measuring the coal accumulation height. When multiple feed plates 8 are opened in a cyclical manner, the opening angle of the feed plates 8 gradually decreases as the difference between the actual tonnage of the metering bin 5 and the target value for loading decreases. This method can control the metering accuracy within ±60KG while ensuring loading efficiency.

[0060] Working principle: Multiple feed plates 8 rotate to open and close, the weighing data of the weighing component 4 and the height scan of the buffer bin 2 are all connected to the controller structure inside the integrated electrical box 21. The coal flow is transported through the transport component 11 to the buffer bin 2 set at the top of the building structure 1 for initial accumulation. When the coal level inside the buffer bin 2 reaches or exceeds 15%, all multiple feed plates 8 are driven to open by the integrated electrical box 21, and the coal flow quickly enters the metering bin 5. The weighing function of the weighing component 4 measures the coal in the metering bin 5. When the tonnage in the metering bin 5 reaches 80% of the target loading value, the coal flow is considered complete. Half of the feed plates 8 are closed, while the remaining feed plates 8 continue to discharge coal at a slower rate. When the metering bin 5 reaches 95% of the target loading capacity, all feed plates 8 are closed. This process is repeated, opening and closing individual feed plates 8 in turn to prevent coal accumulation and blockage. Once the metering bin 5 reaches the set capacity, all feed plates 8 are closed, and the unloading gate assembly 6 is opened. Coal falls into the car body via the loading chute 7, initiating the loading operation. During loading, coal continuously flows into the feed gate assembly 3. Once the current car body is loaded and the metering bin 5 is unloaded... After emptying, coal is fed into metering bin 5 again to complete the next round of metering operations, ensuring a continuous and efficient loading process. In this device, eight sets of feed plates 8 are set. When the tonnage of metering bin 5 reaches 80% of the loading target value, four sets of feed plates 8 open to continuously feed coal, while the other four sets of feed plates 8 close. This method slows down the coal feeding rate and avoids the situation where the eight sets of feed plates 8 do not close in time and the metering is overloaded when the tonnage of metering bin 5 reaches 80% of the loading target value. Finally, by cyclically opening and closing individual feed plates 8 one by one, each feed plate 8 opens with a rotation, and the feed plate 8 side... The friction between the coal and the feed plate 8 causes the coal stuck to the edge to be rubbed off. When multiple feed plates 8 are opened in a cycle, the interval between the actions of a single feed plate 8 is short, allowing the coal flow time to fall and the feed plate 8 time to scrape back, preventing wet coal from re-adhering. This avoids problems such as coal blockage and poor coal discharge at the feed position of the buffer bin 2. When multiple feed plates 8 are opened in a cycle, the opening angle of the feed plate 8 gradually decreases as the difference between the actual tonnage of the metering bin 5 and the target value for loading decreases. This method can control the metering accuracy within ±60KG while ensuring loading efficiency.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal quantitative loading device, comprising a building structure (1) and a transport component (11) installed on the side of the building structure (1), wherein the bottom of the building structure (1) is provided with a loading inlet / outlet (12) for the loading car to enter, characterized in that: A buffer chamber (2) is fixedly installed on the top of the building structure (1). A feed gate assembly (3) for feeding is installed at the bottom of the buffer chamber (2). A metering chamber (5) is also installed inside the building structure (1). The metering chamber (5) is located below the buffer chamber (2) and is used to measure the coal fed from the buffer chamber (2). A weighing assembly (4) is installed on the outside of the metering chamber (5). The weighing assembly (4) is used to weigh the weight of the metering chamber (5). A standard weight is also installed inside the building structure (1). The standard weight is used to calibrate the weighing assembly (4). A feed gate assembly (3) is movably installed in the bottom of the buffer chamber (2). The feed gate assembly (3) includes multiple feed plates (8) movably installed in the bottom of the buffer chamber (2). An integrated electrical box (21) is installed on one side of the bottom of the buffer chamber (2). The integrated electrical box (21) is fixedly installed inside the building structure (1). The integrated electrical box (21) integrates drive, pneumatic and controller structures. A discharge gate assembly (6) is installed in the bottom of the metering chamber (5). The discharge gate assembly (6) is used to control the discharge switch of the metering chamber (5) to the loading chute (7). Semicircular strips (81) are installed on both sides of the feed plate (8), and connecting shafts (82) are installed at both ends of the feed plate (8). The two connecting shafts (82) are rotatably installed at the bottom of the buffer chamber (2), and bearings are movably installed on the outer side of the connecting shafts (82). A drive shaft (83) is installed at one end of the connecting shaft (82). The drive shaft (83) is driven and controlled by an integrated electrical box (21). A connecting air pipe (84) is installed on the outside of the connecting shaft (82). The connecting air pipe (84) is pneumatically controlled by the integrated electrical box (21). The feed plate (8) is equipped with a conveying pipe (85), one end of which extends into the connecting shaft (82) and is connected to the connecting air pipe (84). Multiple branch pipes (86) are installed on both sides of the conveying pipe (85). The feed plate (8) is equipped with an anti-clogging and anti-sticking component (9) on its outer side. The anti-clogging and anti-sticking component (9) includes a semi-circular groove (92) opened inside the semi-circular strip (81) and a plurality of holes (91) opened on the side of the semi-circular strip (81). The plurality of holes (91) are connected to the semi-circular groove (92). A semi-circular airbag strip (93) is fixedly installed inside the semi-circular groove (92). The semi-circular airbag strip (93) is connected to a plurality of branch pipes (86). The anti-clogging and anti-sticking component (9) also includes a reciprocating shaking component (94) fixedly installed inside the plurality of holes (91). The plurality of reciprocating shaking components (94) are connected to the semi-circular airbag strip (93). The reciprocating vibration component (94) includes an airbag ring (941) fixedly connected to the slot (91) and the semi-circular airbag strip (93) and an elastic ring one (942) fixedly installed inside the outward side of the airbag ring (941). A hard ring one (943) is fixedly installed inside the elastic ring one (942). An elastic ring two (944) is fixedly installed inside the hard ring one (943). A hard ring two (945) is fixedly installed inside the elastic ring two (944). An elastic ring three (946) is fixedly installed inside the hard ring two (945). A hard ring three (947) is fixedly installed inside the elastic ring three (946). When each different feed plate (8) is opened in a cycle, the edge of the feed plate (8) rubs against the coal clumps each time it is turned open, which will cause the coal stuck to the edge of the feed plate (8) to be scraped off. When multiple feed plates (8) are opened in a cycle, the interval between the actions of a single feed plate (8) is short, which allows the coal flow time to fall and the feed plate (8) time to scrape back.

2. The coal quantitative loading device according to claim 1, characterized in that: The interior of the building structure (1) is provided with component cavity one (13), component cavity two (14) and component cavity three (15) in descending order from top to bottom. The loading chute (7) is located inside the loading inlet / outlet (12), and the loading inlet / outlet (12) is connected to component cavity three (15).

3. A coal quantitative loading device according to claim 2, characterized in that: The weighing assembly (4) includes multiple weighing plates (41) installed on the outside of the metering chamber (5) and multiple fixing plates (43) fixedly installed above the bottom side of the component cavity (14). Weighing sensors (42) are fixedly installed between the multiple weighing plates (41) and the multiple fixing plates (43).

4. A control method for a coal quantitative loading device, wherein the method employs the coal quantitative loading device of claim 1, characterized in that: Includes the following steps: Step 1: The coal flows through the transport assembly (11) and is transported to the buffer silo (2) set at the top of the building structure (1) for initial storage; Step 2: When the coal level inside the buffer bin (2) reaches or exceeds 15%, multiple feed plates (8) are all opened through the integrated electrical box (21), and the coal flow quickly enters the metering bin (5); Step 3: Weigh the metering bin (5) using the weighing function of the weighing component (4). When the tonnage of the metering bin (5) reaches 80% of the target value for loading, close half of the feed plates (8) and continue to feed coal from the remaining feed plates (8) to slow down the coal feeding rate. Step 4: When the tonnage of the metering bin (5) reaches 95% of the target loading value, close all feed plates (8), and then open each different feed plate (8) in turn to avoid coal accumulation and blockage on the feed plates (8); Step 5: When the tonnage measurement inside the metering bin (5) reaches the set requirement, close all feed plates (8), open the unloading gate assembly (6), and the coal falls into the car body through the loading chute (7) to start the loading operation; Step 6: During the loading operation, coal flows continuously into the feed gate assembly (3). After the current car is loaded and the metering bin (5) is emptied, coal is fed into the metering bin (5) again, and the operation is carried out in a cycle.

5. The control method for a coal quantitative loading device according to claim 4, characterized in that: The buffer silo (2) is equipped with a height sensor for measuring the coal accumulation height. When multiple feed plates (8) are opened in a cyclical manner, the opening angle of the feed plates (8) gradually decreases as the difference between the actual tonnage of the metering silo (5) and the target value for loading decreases.

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