Multi-layer shunting pneumatic ash conveying device and using method thereof

Abstract

The invention relates to the technical field of pneumatic ash conveying, in particular to a multilayer shunting pneumatic ash conveying device and a using method thereof.The multilayer shunting pneumatic ash conveying device comprises a positive pressure air source, a bin pump sending tank and a conveying pipe, and a first air pressure pipe, a second air pressure pipe and a third air pressure pipe are installed at an air supply opening in one side of the positive pressure air source; metering valves are mounted on the branch pipe sides of the first pneumatic pipe and the third pneumatic pipe, the tail end of the branch pipe of the third pneumatic pipe is connected with the upper end of the bin pump sending tank, a conveying pipe is mounted at the lower end of the bin pump sending tank, a feeding bin is mounted at the upper end of the bin pump sending tank and connected with the bin pump sending tank through an exhaust pipe, and a level gage is mounted on one side of the upper end of the bin pump sending tank; a transmission unit is installed in the lower end of the feeding bin. According to the conveying device, rotation of the feeding blades can be controlled in real time in the conveying process, then the remaining amount of ash in the bin body can be controlled, in the running process, collecting and pneumatic feeding can be achieved at the same time, and the conveying efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to a multi-layer pneumatic ash conveying device and its usage method, particularly to a multi-layer pneumatic ash conveying device and its usage method, belonging to the field of pneumatic ash conveying technology. Background Technology

[0002] Multi-layer diversion pneumatic ash conveying device is a closed system used in power plants, metallurgy and other industries for efficient conveying of fly ash or blast furnace ash. The device sets up multiple diversion ports and uses compressed air or nitrogen as a power source to make the ash material form a dense phase fluidized state in the conveying pipeline, thereby achieving stable conveying with low flow rate, low wear and high concentration. The diversion structure can ensure uniform feeding in each conveying branch, avoid blockage and flow deviation, improve the overall conveying efficiency and reliability of the system, and is suitable for complex working conditions with multiple ash hoppers arranged in parallel. In actual conveying processes, the double-layer butterfly valve is used to close and open the bottom of the feeding hopper. However, it is impossible to control the remaining amount of ash inside the hopper according to the actual situation, nor can it achieve simultaneous collection and pneumatic feeding. As a result, the conveying efficiency is low. Therefore, it is urgent to improve a multi-layer diversion pneumatic ash conveying device and its usage method to solve the above-mentioned problems. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-layer diversion pneumatic ash conveying device and its usage method, in order to solve the problem that in the actual conveying process, the bottom of the feeding hopper is closed and opened by a double-layer butterfly valve, making it impossible to control the remaining amount of ash inside the hopper according to the actual situation, and also impossible to achieve simultaneous collection and pneumatic feeding, resulting in low conveying efficiency.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A multi-layered pneumatic ash conveying device and its usage method are disclosed, comprising a positive pressure air source, a silo pump sending tank, and a conveying pipe. A first pressure pipe, a second pressure pipe, and a third pressure pipe are installed at the air supply port on one side of the positive pressure air source. Metering valves are installed on the branch pipes of both the first and third pressure pipes. The end of the branch pipe of the third pressure pipe is connected to the upper end of the silo pump sending tank. A conveying pipe is installed at the lower end of the silo pump sending tank. A feeding silo is installed at the upper end of the silo pump sending tank. The feeding silo and the silo pump sending tank are connected by an exhaust pipe. A level gauge is installed on one side of the upper end of the silo pump sending tank. A transmission unit is installed inside the lower end of the feeding silo.

[0005] Furthermore, the feeding hopper includes a hopper body, with a feeding port in the middle of the upper end of the hopper body, a return air port on one side of the upper end of the hopper body, a piston column fixedly connected to one side of the lower end of the hopper body, and a connecting channel fixedly connected to the middle of the lower end of the hopper body.

[0006] Furthermore, the connecting channel includes a channel body, an internal cavity is provided inside the channel body, a rotating hole is provided on the inner side of one end of the internal cavity, and sliding grooves are provided on both sides of the internal cavity. A lifting controller is fixedly connected inside the bottom end of the sliding groove, and a locking unit is slidably connected inside the sliding groove.

[0007] Furthermore, the locking unit includes a locking block, with sliders fixedly connected to both sides of the locking block, and arc-shaped teeth distributed on the upper end of the locking block.

[0008] Furthermore, the transmission unit includes a first circular shaft, a second circular shaft fixedly connected to one end of the first circular shaft, wind turbine blades fixedly connected to the outer side of the second circular shaft in an annular pattern at equal intervals, a crank connecting rod fixedly connected to the other end of the first circular shaft, a third circular shaft fixedly connected to the other end of the crank connecting rod, locking grooves being formed in an annular pattern at equal intervals on the outer sides of both ends of the third circular shaft, feeding blades being fixedly connected to the outer side of the middle of the third circular shaft in an annular pattern at equal intervals, a connecting rod being installed on the outer side of the crank connecting rod, a piston being rotatably connected to the other end of the connecting rod, a vertical rod being fixedly connected to the upper end of the piston, and a spiral blade being fixedly connected to the outer side of the vertical rod.

[0009] Furthermore, there are two locking units, which are respectively located at the lower end of the locking grooves opened at both ends of the third circular shaft, and the third circular shaft is rotatably connected to the channel body.

[0010] Furthermore, the crank connecting rod is located at the lower end of the piston rod, the upper end of the piston is an inclined surface, and the piston and piston rod are slidably connected.

[0011] Furthermore, the second circular shaft and the impeller blades are both located on the inner side of the lower end of the exhaust pipe, and the second circular shaft is rotatably connected to the exhaust pipe.

[0012] Furthermore, the exhaust pipe is U-shaped, with its upper end fixedly connected to one side of the upper end of the silo body, and its lower end fixedly connected to one side of the silo pump sending tank. The silo body and the silo pump sending tank are connected through the exhaust pipe.

[0013] Furthermore, it includes the following steps: Step 1: During equipment operation, power is supplied via an external industrial power source. Once power is supplied, the equipment will begin operation. During operation, the silo is designed to transport the ash material placed inside. Step 2: During the conveying process, the silo pump sending tank is supplied with air through the third air pressure pipe branch. The air enters the silo pump sending tank, increasing its internal air pressure. After the air pressure inside the silo pump sending tank increases, some of the air enters the exhaust pipe. The impeller blades drive the third circular shaft to rotate, which in turn drives the first circular shaft, the third circular shaft, and the crank connecting rod to rotate. During the rotation of the crank connecting rod, the piston moves up and down through the connecting rod, which in turn drives the vertical rod and the spiral blade to move synchronously, in order to avoid the problem of material bridging inside the feeding silo. Step 3: At the same time, the air pressure inside the silo also increases synchronously, and the ash material inside the silo is continuously transported to the silo pump tank through the rotating feeding blades. When the ash material inside the silo pump tank is transported, the lifting controller pushes the locking block to move upward, so that the teeth contact the locking groove and lock the third rotating shaft. Step 4: After the third shaft is locked, the positive pressure air source runs for a period of time to complete the final conveying of the residual ash material inside the tank by the silo pump.

[0014] The present invention has at least the following beneficial effects: 1. In this invention, the rotation of the feeding blades can be controlled in real time during the conveying process through the transmission unit, thereby controlling the remaining amount of ash material inside the bin. During operation, it can achieve simultaneous collection and pneumatic feeding, effectively improving the conveying efficiency. 2. In this invention, the locking unit can be set up to lock the transmission unit at any time during actual operation, according to actual needs, thereby improving the range of applicable scenarios of the device. 3. In this invention, the crank connecting rod, connecting rod and piston can be set to drive the spiral blades and vertical rod to move up and down reciprocally by the operation of the transmission unit, thereby agitating the ash material inside the silo pump tank, effectively avoiding the problem of bridging of the ash material inside the silo pump tank, and further improving the stability of ash material transportation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation position structure of the transmission unit of the present invention; Figure 3 This is a schematic diagram of the internal structure of the container of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the locking unit structure of the present invention; Figure 6 This is a schematic diagram of the transmission unit structure of the present invention; Figure 7 This is a schematic diagram of the channel body structure of the present invention.

[0016] In the diagram, 1 represents a positive pressure air source; 2. Feeding bin; 21. Bin body; 22. Air return port; 23. Feed inlet; 24. Piston column; 25. Connecting channel; 251. Channel body; 252. Intermediate cavity; 253. Rotary hole; 254. Slide groove; 255. Lifting controller; 256. Locking unit; 2561. Locking block; 2562. Slider; 2563. Tooth; 3. Silo pump delivery tank; 4. Exhaust pipe; 5. Conveying pipe; 6. First pressure pipe; 7. Second pressure pipe; 8. Third pressure pipe; 9. Metering valve; 10. Level gauge; 11. Transmission unit; 111. First round shaft; 112. Crank connecting rod; 113. Connecting rod; 114. Piston; 115. Vertical rod; 116. Helical blade; 117. Wind turbine blade; 118. Second round shaft; 119. Third round shaft; 1110. Locking groove; 1111. Feeding blade. Detailed Implementation

[0017] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0018] like Figures 1-7 As shown in the figure, this embodiment provides a multi-layer diversion pneumatic ash conveying device and its usage method, including a positive pressure air source 1, a silo pump sending tank 3 and a conveying pipe 5. A first air pressure pipe 6, a second air pressure pipe 7 and a third air pressure pipe 8 are installed at the air supply port on one side of the positive pressure air source 1. Metering valves 9 are installed on the branch pipes of the first air pressure pipe 6 and the third air pressure pipe 8. The end of the branch pipe of the third air pressure pipe 8 is connected to the upper end of the silo pump sending tank 3. The conveying pipe 5 is installed at the lower end of the silo pump sending tank 3. A feeding silo 2 is installed at the upper end of the silo pump sending tank 3. The feeding silo 2 and the silo pump sending tank 3 are connected by an exhaust pipe 4. A level gauge 10 is installed on one side of the upper end of the silo pump sending tank 3. A transmission unit 11 is installed inside the lower end of the feeding silo 2.

[0019] As a further embodiment of the present invention, the feeding bin 2 includes a bin body 21, with a feeding port 23 in the middle of the upper end of the bin body 21, a return air port 22 in the middle of the upper end of the bin body 21, a piston column 24 fixedly connected to the middle of the lower end of the bin body 21, and a connecting channel 25 fixedly connected to the middle of the lower end of the bin body 21. With the above configuration, the ash material can be stably transferred, and the ash material can be transported in layers as needed. As a further embodiment of the present invention, the connecting channel 25 includes a channel body 251, an intermediate cavity 252 is provided inside the channel body 251, a rotating hole 253 is provided on the inner side of one end of the intermediate cavity 252, and sliding grooves 254 are provided on both sides of the intermediate cavity 252. A lifting controller 255 is fixedly connected inside the bottom end of the sliding groove 254, and a locking unit 256 is slidably connected inside the sliding groove 254. Through the above settings, the feeding blade 1111 can be stably positioned. As a further embodiment of the present invention, the locking unit 256 includes a locking block 2561, with sliders 2562 fixedly connected to both sides of the locking block 2561. The upper end of the locking block 2561 is provided with arc-shaped teeth 2563. There are two locking units 256, which are respectively located at the lower end of the locking grooves 1110 opened at both ends of the third circular shaft 119. The third circular shaft 119 is rotatably connected to the channel body 251. Through the above arrangement, the transmission unit 11 can be stably limited to select whether to transport ash material as needed. As a further embodiment of the present invention, the transmission unit 11 includes a first circular shaft 111, a second circular shaft 118 fixedly connected to one end of the first circular shaft 111, wind turbine blades 117 fixedly connected to the outer side of the second circular shaft 118 in an annular shape at equal intervals, a crank connecting rod 112 fixedly connected to the other end of the first circular shaft 111, a third circular shaft 119 fixedly connected to the other end of the crank connecting rod 112, locking grooves 1110 annularly and equidistantly opened on the outer sides of both ends of the third circular shaft 119, a feeding blade 1111 fixedly connected to the outer side of the middle of the third circular shaft 119 in an annular shape at equal intervals, a connecting rod 113 installed on the outer side of the crank connecting rod 112, a piston 114 rotatably connected to the other end of the connecting rod 113, a vertical rod 115 fixedly connected to the upper end of the piston 114, and a spiral blade 116 fixedly connected to the outer side of the vertical rod 115. With the above configuration, the feeding blade 1111 can be stably rotated by pneumatics, and the problem of bridging of ash material inside the hopper 21 can be prevented. As a further embodiment of the present invention, the crank connecting rod 112 is disposed at the lower end of the piston rod 24, the upper end of the piston 114 is an inclined surface, and the piston 114 and the piston rod 24 are slidably connected. With the above arrangement, the vertical rod 115 and the helical blade 116 can be stably driven to move stably during the up and down movement of the piston 114. As a further embodiment of the present invention, the second circular shaft 118 and the wind turbine blade 117 are both disposed on the inner side of the lower end of the exhaust pipe 4, and the second circular shaft 118 is rotatably connected to the exhaust pipe 4. With the above arrangement, the airflow passing through the exhaust pipe 4 can stably drive the wind turbine blade 117 to rotate. As a further embodiment of the present invention, the exhaust pipe 4 is U-shaped, with its upper end fixedly connected to one side of the upper end of the silo body 21 and its lower end fixedly connected to one side of the silo pump sending tank 3. The silo body 21 and the silo pump sending tank 3 are connected through the exhaust pipe 4. With the above arrangement, the material transfer stage and the pneumatic conveying of ash material can be linked, further effectively improving the stability of the equipment during operation.

[0020] like Figures 1-7 As shown in the figure, the principle of the multi-layer diversion pneumatic ash conveying device and its usage method provided in this embodiment is as follows: Includes the following steps: Step 1: During equipment operation, power is supplied via an external industrial power source. Once power is supplied, the equipment will begin operation. During operation, the silo 21 is designed to transport the ash material placed inside. Step 2: During the conveying process, the gas is supplied to the inside of the silo pump sending tank 3 through the third air pressure pipe 8 branch pipe. The gas enters the inside of the silo pump sending tank 3, increasing its internal air pressure. After the air pressure inside the silo pump sending tank 3 increases, some of the gas enters the exhaust pipe 4. The impeller blades 117 drive the third round shaft 118 to rotate, which in turn drives the first round shaft 111, the third round shaft 119, and the crank connecting rod 112 to rotate. During the rotation of the crank connecting rod 112, the piston 114 moves up and down through the connecting rod 113, which in turn drives the vertical rod 115 and the spiral blades 116 to move synchronously, in order to avoid the problem of material bridging inside the feeding silo 2. Step 3: At the same time, the air pressure inside the silo 21 also increases synchronously, and the ash material inside the silo 21 is continuously transported to the silo pump delivery tank 3 through the rotating feeding blades 1111. When the ash material inside the silo pump delivery tank 3 is transported, the lifting controller 255 pushes the locking block 2561 to move upward, so that the teeth 2563 contact the locking groove 1110, locking the third rotating shaft 119. Step 4: After the third rotating shaft 119 is locked, the positive pressure air source 1 runs for a period of time to complete the final conveying of the residual ash material inside the silo pump tank 3.

[0021] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0022] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0023] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A multi-layer diversion pneumatic ash conveying device, comprising a positive pressure air source (1), a silo pump delivery tank (3), and a conveying pipe (5), characterized in that: The positive pressure air source (1) has a first air pressure pipe (6), a second air pressure pipe (7) and a third air pressure pipe (8) installed on one side of the air supply port. Metering valves (9) are installed on the branch pipes of the first air pressure pipe (6) and the third air pressure pipe (8). The end of the branch pipe of the third air pressure pipe (8) is connected to the upper end of the silo pump sending tank (3). A conveying pipe (5) is installed at the lower end of the silo pump sending tank (3). A feeding silo (2) is installed at the upper end of the silo pump sending tank (3). The feeding silo (2) and the silo pump sending tank (3) are connected by an exhaust pipe (4). A level gauge (10) is installed on one side of the upper end of the silo pump sending tank (3). A transmission unit (11) is installed inside the lower end of the feeding silo (2).

2. The multi-layer diversion pneumatic ash conveying device according to claim 1, characterized in that: The feeding bin (2) includes a bin body (21), with a feed inlet (23) in the middle of the upper end of the bin body (21), a return air inlet (22) on one side of the upper end of the bin body (21), a piston column (24) fixedly connected to one side of the lower end of the bin body (21), and a connecting channel (25) fixedly connected to the middle of the lower end of the bin body (21).

3. The multi-layer diversion pneumatic ash conveying device according to claim 2, characterized in that: The connecting channel (25) includes a channel body (251), an intermediate cavity (252) is provided inside the channel body (251), a rotating hole (253) is provided on the inner side of one end of the intermediate cavity (252), and sliding grooves (254) are provided on both sides of the intermediate cavity (252). A lifting controller (255) is fixedly connected inside the bottom end of the sliding groove (254), and a locking unit (256) is slidably connected inside the sliding groove (254).

4. The multi-layer diversion pneumatic ash conveying device according to claim 3, characterized in that: The locking unit (256) includes a locking block (2561), with sliders (2562) fixedly connected to both sides of the locking block (2561), and arc-shaped teeth (2563) provided on the upper end of the locking block (2561).

5. The multi-layer diversion pneumatic ash conveying device according to claim 1, characterized in that: The transmission unit (11) includes a first round shaft (111), a second round shaft (118) is fixedly connected to one end of the first round shaft (111), wind turbine blades (117) are fixedly connected to the outer side of the second round shaft (118) in an annular shape at equal intervals, a crank connecting rod (112) is fixedly connected to the other end of the first round shaft (111), a third round shaft (119) is fixedly connected to the other end of the crank connecting rod (112), locking grooves (1110) are opened in an annular shape at equal intervals on the outer side of both ends of the third round shaft (119), a feeding blade (1111) is fixedly connected to the outer side of the middle of the third round shaft (119) in an annular shape at equal intervals, a connecting rod (113) is installed on the outer side of the crank connecting rod (112), a piston (114) is rotatably connected to the other end of the connecting rod (113), a vertical rod (115) is fixedly connected to the upper end of the piston (114), and a spiral blade (116) is fixedly connected to the outer side of the vertical rod (115).

6. The multi-layer diversion pneumatic ash conveying device according to claim 4, characterized in that: Two locking units (256) are provided. The locking units (256) are respectively located at the lower end of the locking grooves (1110) opened at both ends of the third circular shaft (119). The third circular shaft (119) is rotatably connected to the channel body (251).

7. A multi-layer diversion pneumatic ash conveying device according to claim 5, characterized in that: The crank connecting rod (112) is located at the lower end of the piston rod (24), the upper end of the piston (114) is an inclined surface, and the piston (114) is slidably connected to the piston rod (24).

8. A multi-layer diversion pneumatic ash conveying device according to claim 5, characterized in that: The second round shaft (118) and the wind turbine blade (117) are both located on the inner side of the lower end of the exhaust pipe (4), and the second round shaft (118) is rotatably connected to the exhaust pipe (4).

9. A multi-layer diversion pneumatic ash conveying device according to claim 1, characterized in that: The exhaust pipe (4) is U-shaped. The upper end of the exhaust pipe (4) is fixedly connected to one side of the upper end of the silo body (21), and the lower end of the exhaust pipe (4) is fixedly connected to one side of the silo pump sending tank (3). The silo body (21) and the silo pump sending tank (3) are connected through the exhaust pipe (4).

10. A method of using a multi-layer diversion pneumatic ash conveying device according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: During equipment operation, power is supplied via an external industrial power source. Once power is supplied, the equipment will begin operation. During operation, the silo (21) is opened to transport the ash material placed inside; Step 2: During the conveying process, the gas is supplied to the inside of the silo pump sending tank (3) through the third air pressure pipe (8) branch pipe. The gas enters the inside of the silo pump sending tank (3), causing the internal air pressure to rise. After the internal air pressure of the silo pump sending tank (3) rises, some gas enters the exhaust pipe (4). The impeller blades (117) drive the third round shaft (118) to rotate, which in turn drives the first round shaft (111), the third round shaft (119), and the crank connecting rod (112) to rotate. During the rotation of the crank connecting rod (112), the piston (114) is driven to move up and down through the connecting rod (113), which in turn drives the vertical rod (115) and the spiral blade (116) to move synchronously, in order to avoid the problem of material bridging inside the feeding silo (2). Step 3: At the same time, the air pressure inside the silo (21) also increases synchronously, and the ash material inside the silo (21) is continuously transported to the silo pump delivery tank (3) through the rotating feeding blades (1111). When the ash material inside the silo pump delivery tank (3) is transported, the lifting controller (255) pushes the locking block (2561) to move upward, so that the teeth (2563) contact the locking groove (1110) and lock the third rotating shaft (119). Step 4: After the third rotating shaft (119) is locked, the positive pressure air source (1) runs for a period of time to complete the final conveying of the residual ash material inside the silo pump tank (3).

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