Automatic discharging and gas isolation device

Abstract

The utility model belongs to automatic unloading technical field especially relates to a kind of automatic unloading gas isolation device, including shell, feed pipe, conical hopper, discharge pipe, electric push rod, inclined block, baffle, guide rod and connecting plate etc., feed pipe is fixedly connected on the upper portion of shell, conical hopper is installed at the bottom of shell, discharge pipe is fixedly connected at the bottom of conical hopper, electric push rod is installed in the upper portion in shell, piston rod end of electric push rod is installed with inclined block, two guide rods are fixedly connected in the top of shell, connecting plate is slidably arranged outside each guide rod, baffle is fixedly connected between the top of two connecting plates, baffle is located below feed pipe. The quick sealing connection of device and bunker and feeding equipment is realized by flange plate one and flange plate two, in combination with the sealing effect of air leakage prevention cover, effectively block the escape of harmful gas in powder during the process of unloading, ensure the safety of working environment.

Description

Technical Field

[0001] This utility model belongs to the field of automatic feeding technology, and in particular relates to an automatic feeding air-blocking device. Background Technology

[0002] In the powder material handling processes of industries such as chemical, metallurgical, building materials, and energy, it is often necessary to supply powdered materials from silos, storage tanks, or intermediate buffer silos to the equipment requiring material supply through automatic feeding devices in order to meet the stringent requirements of modern industrial production for process connectivity and process stability.

[0003] However, some powder materials release harmful gases during the conveying process. These gases escape through the connection points between the hopper, the feeding equipment, and the automatic feeding device, and are dispersed into the surrounding environment, posing a threat to the health of operators and polluting the working environment.

[0004] Therefore, it is necessary to design an automatic feeding and air-tightening device to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing automatic feeding devices that easily lead to the escape of harmful gases, endangering personnel health and polluting the working environment, this utility model provides an automatic feeding gas-blocking device.

[0006] This utility model is achieved through the following technical means: an automatic feeding and air-blocking device, comprising a shell, a feed pipe, a conical funnel, a discharge pipe, an electric push rod, an inclined block, a baffle, a conical block, a guide rod, a spring, a connecting plate, and a scraping assembly. The feed pipe is fixedly connected to the upper part of the shell, and the conical funnel is installed at the bottom of the shell. The discharge pipe is fixedly connected to the bottom of the conical funnel. An electric push rod is installed in the upper part of the shell, and an inclined block is installed at the end of the piston rod of the electric push rod. Two guide rods are fixedly connected to the top of the shell, and a connecting plate is slidably arranged on the outside of each guide rod. The tops of the two connecting plates... A baffle is fixed between the ends, located below the feed pipe. Each guide rod is fitted with a spring, with the upper and lower ends of the spring connected to the inner wall of the housing and the corresponding connecting plate, respectively. A conical block is fixed to the top of the baffle, with the axis of the conical block aligned with the center of the feed pipe. The feature is that it also includes a first flange, a second flange, a leak-proof cover, and a sealing gasket. The first flange is fixed to the upper end of the feed pipe, the second flange is fixed to the bottom end of the discharge pipe, the leak-proof cover is fixed to the upper part of the housing, covering the lower end of the feed pipe, and a sealing gasket is fixed to the bottom of the leak-proof cover, with the sealing gasket tightly attached to the housing.

[0007] In one embodiment, a scraping assembly is provided between the housing, the baffle, and the conical block. The scraping assembly includes a support rod, a screw, scrapers, annular guide rails, and a connecting frame. The support rod is fixedly connected between the baffle and the conical block. A screw is fixedly connected to the bottom end of the support rod. A connecting frame is slidably mounted on the support rod. A threaded groove is formed on the inner wall of the connecting frame where it slides with the support rod. The threaded groove is threadedly engaged with the screw. Multiple scrapers are fixedly mounted on the connecting frame. The scraping surfaces of the multiple scrapers are in close contact with the inner wall of the housing. Two annular guide rails distributed vertically are fixedly mounted inside the housing. The housing and the annular guide rails maintain contact. The scrapers slide in cooperation with the two annular guide rails.

[0008] In one embodiment, a dust cover is also included, with the dust cover fixed to the top of the connecting frame, and the dust cover blocking the position where the connecting frame has a threaded groove.

[0009] In one embodiment, the bottom of the feed tube is flush with the top of the housing.

[0010] In one embodiment, the upper end of the support rod passes through the baffle and the conical block, and extends beyond the conical block by a certain distance.

[0011] In one embodiment, the diameter of the baffle and the bottom diameter of the conical block are both adapted to the inner diameter of the feed pipe.

[0012] In one embodiment, the lowest point of the inclined surface of the wedge is aligned with the bottom surface of the baffle, and the highest point of the inclined surface of the wedge is flush with the top of the housing.

[0013] The beneficial effects are: 1. By using flange one and flange two, the device can be quickly and sealed to the silo and the equipment that needs to be supplied with materials. Combined with the sealing effect of the anti-leakage cover, it can effectively prevent harmful gases in the powder from escaping during the feeding process and ensure the safety of the working environment.

[0014] 2. The inclined block is driven by an electric push rod to lift the baffle, which can quickly close the feed pipe and cut off the material source during maintenance. At the same time, the movement of the baffle drives the screw and the threaded groove to drive the scraper to rotate, automatically scraping off the powder attached to the inner wall of the shell, effectively avoiding material accumulation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial cross-sectional view of the housing and leak-proof cover components of this utility model.

[0017] Figure 3 This is a partial cross-sectional view of the leak-proof cover component of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the electric push rod and inclined block component of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the baffle, conical block, and guide rod components of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the dust cover, scraper, and annular guide rail components of this utility model.

[0021] Figure 7 This is a partial sectional view of the dust cover and connecting frame components of this utility model.

[0022] The markings in the diagram are as follows: 1. Shell, 11. Flange 1, 12. Feed pipe, 13. Conical funnel, 14. Discharge pipe, 15. Flange 2, 2. Leak-proof cover, 21. Sealing gasket, 3. Electric push rod, 31. Inclined block, 4. Baffle, 41. Conical block, 42. Guide rod, 43. Spring, 44. Connecting plate, 5. Support rod, 51. Screw, 52. Threaded groove, 53. Dust cover, 54. Scraper, 55. Circular guide rail, 56. Connecting frame. Detailed Implementation

[0023] Example: An automatic feeding and air-tightening device, such as Figures 1-7As shown, the device includes a housing 1, a feed pipe 12, a conical funnel 13, a discharge pipe 14, an electric push rod 3, an inclined block 31, a baffle 4, a conical block 41, a guide rod 42, a spring 43, a connecting plate 44, and a scraping assembly. The feed pipe 12 is fixedly connected to the upper part of the housing 1, and the bottom end of the feed pipe 12 is flush with the top of the housing 1. The conical funnel 13 is fixed to the bottom of the housing 1 by bolts. A sealing plate is provided at the top of the conical funnel 13 where it contacts the housing 1. The discharge pipe 14 is fixedly connected to the bottom of the conical funnel 13. The electric push rod 3 is fixed to the upper part of the housing 1 by bolts. The piston rod of push rod 3 extends horizontally to the left, and the end of the piston rod is fixed with a wedge block 31 by bolts. During use, the electric push rod 3 needs to be connected to an external visual controller for easy control. Two guide rods 42 are fixedly connected to the top of the housing 1. A connecting plate 44 is slidably fitted on each guide rod 42. A baffle 4 is fixedly connected between the tops of the two connecting plates 44. The baffle 4 is located below the feed pipe 12. The lowest point of the inclined surface of the wedge block 31 is aligned with the bottom surface of the baffle 4, and the highest point of the inclined surface of the wedge block 31 is flush with the top of the housing 1. Each guide rod 42 is externally fitted with a... Spring 43 is connected at its upper and lower ends to the inner wall of housing 1 and the corresponding connecting plate 44, respectively, providing a reset force for connecting plate 44 and baffle 4. A conical block 41 is fixedly connected to the top of baffle 4. The axis of conical block 41 is aligned with the center of feed pipe 12, and the diameter of baffle 4 and the bottom diameter of conical block 41 are adapted to the inner diameter of feed pipe 12. When baffle 4 moves upward into the lower end of feed pipe 12, conical block 41 can also enter feed pipe 12 to clear any powder that may be blocked at the lower end of feed pipe 12. The system also includes flange 11, flange 2 15, and an air leak-proof cover. 2. A flange 11 is fixedly connected to the upper end of the feed pipe 12, and a flange 25 is fixedly connected to the bottom end of the discharge pipe 14. A leak-proof cover 2 is fixedly connected to the upper part of the housing 1. The housing 1 and the leak-proof cover 2 are in sealed contact. The leak-proof cover 2 covers the lower end of the feed pipe 12, further sealing it and preventing harmful gases from escaping through the contact gap between the lower end of the feed pipe 12 and the housing 1. A sealing gasket 21 is fixedly connected to the bottom of the leak-proof cover 2. The sealing gasket 21 is tightly attached to the housing 1 to prevent harmful gases from escaping through the contact gap between the leak-proof cover 2 and the housing 1.

[0024] like Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, a scraping assembly is provided between the housing 1, the baffle 4, and the conical block 41. The scraping assembly includes a support rod 5, a screw 51, a dust cover 53, a scraper 54, an annular guide rail 55, and a connecting frame 56. The support rod 5 is fixedly connected between the baffle 4 and the conical block 41. The upper end of the support rod 5 passes through the baffle 4 and the conical block 41, and extends beyond the conical block 41 by a certain distance. The extended section of the rod can enter the feed pipe 12 along with the conical block 41, enhancing the unblocking effect on the lower end of the feed pipe 12. The bottom end of the support rod 5 is fixedly connected to the screw 51. The connecting frame 56 is slidably arranged on the support rod 5. The inner wall of the connecting frame 56 where it slides with the support rod 5 is threaded. The groove 52 is threaded to the screw 51. Multiple scrapers 54 are fixedly connected to the end of the connecting frame 56 away from the support rod 5. The scraping surfaces of the multiple scrapers 54 are in close contact with the inner wall of the housing 1. Two vertically distributed annular guide rails 55 are fixedly connected inside the housing 1. The housing 1 is in contact with the annular guide rails 55. The scrapers 54 slide with the two annular guide rails 55, thereby providing a smooth guide for the rotation of the scrapers 54. A dust cover 53 is fixedly connected to the top of the connecting frame 56. The dust cover 53 blocks the position where the threaded groove 52 is opened on the connecting frame 56, preventing the powder in the housing 1 from entering the threaded groove 52 through the gap between the support rod 5 and the connecting frame 56 when feeding.

[0025] When using this device, first connect the feed pipe 12 to the hopper outlet through flange 11, and connect the discharge pipe 14 to the feed inlet of the equipment to be fed through flange 2 15. After opening the hopper, the powder falls into the housing 1 through the feed pipe 12, and then is discharged into the equipment to be fed through the conical funnel 13 and the discharge pipe 14, realizing automatic feeding. During the feeding process, flange 11, flange 2 15, the leak-proof cover 2 and the sealing gasket 21 work together to seal, effectively preventing harmful gases from escaping during the feeding process.

[0026] When maintenance of internal components (i.e., components within housing 1) is required, the electric push rod 3 is activated via the external visual controller. This activates the piston rod of the electric push rod 3, causing the inclined block 31 to move to the left. The inclined block 31 contacts and lifts the baffle 4 through its inclined surface, causing the baffle 4 to slide upward along the guide rod 42 and compress the spring 43. When the highest point of the inclined surface of the inclined block 31 contacts the bottom surface of the baffle 4, the baffle 4 is completely squeezed into the lower end of the feed pipe 12, thereby sealing the feed pipe 12. Subsequently, the conical funnel 13 can be removed and the housing 1 can be disassembled to expose the internal components for maintenance. After maintenance, the housing 1 is reassembled and the conical funnel 13 is installed. The piston rod of the electric push rod 3 is retracted, causing the inclined block 31 to move to the right and no longer compress the baffle 4. The electric push rod 3 is then turned off, and the spring 43 returns to its original state, pushing the connecting plate 44 to move the baffle 4 downward and disengage it from the feed pipe 12.

[0027] During normal feeding, the piston rod of the electric push rod 3 can be extended and retracted multiple times at regular intervals, causing the baffle 4 to repeatedly close and open the feed pipe 12. During each closing process, the section of the conical block 41 and the support rod 5 extending beyond the conical block 41 synchronously enters the lower end of the feed pipe 12 to clear any accumulated powder and prevent blockage at the lower end of the feed pipe 12. At the same time, when the baffle 4 drives the support rod 5 to move upward, the screw 51 moves upward as well. Through its cooperation with the threaded groove 52, it drives the connecting frame 56 to rotate clockwise (viewed from above from the top of the connecting frame 56). The connecting frame 56 then drives multiple scrapers 54 to rotate clockwise synchronously, thereby scraping off the powder adhering to the inner wall of the housing 1. When the baffle 4 drives the support rod 5 to move downward, the screw 51 moves downward as well, driving the connecting frame 56 to rotate multiple scrapers 54 counterclockwise, scraping off the powder adhering to the inner wall of the housing 1 a second time, effectively preventing the powder from accumulating on the inner wall of the housing 1 for a long time.

Claims

1. An automatic feeding and air-blocking device, comprising a housing (1), a feed pipe (12), a conical funnel (13), a discharge pipe (14), an electric push rod (3), an inclined block (31), a baffle (4), a conical block (41), a guide rod (42), a spring (43), a connecting plate (44), and a scraping assembly. The feed pipe (12) is fixedly connected to the upper part of the housing (1), and the conical funnel (13) is installed at the bottom of the housing (1). The discharge pipe (14) is fixedly connected to the bottom of the conical funnel (13). An electric push rod (3) is installed in the upper part of the housing (1). The piston rod of the electric push rod (3) is at the end of the... An inclined block (31) is installed at the end. Two guide rods (42) are fixedly connected to the top of the inner shell (1). A connecting plate (44) is slidably arranged on the outside of each guide rod (42). A baffle (4) is fixedly connected between the top ends of the two connecting plates (44). The baffle (4) is located below the feed pipe (12). A spring (43) is sleeved on the outside of each guide rod (42). The upper and lower ends of the spring (43) are respectively connected to the inner wall of the shell (1) and the corresponding connecting plate (44). A conical block (41) is fixedly connected to the top of the baffle (4). The axis of the conical block (41) is aligned with the center of the feed pipe (12). The feature is that... It also includes flange one (11), flange two (15), air leak cover (2) and gasket (21). Flange one (11) is fixed to the upper end of the feed pipe (12), flange two (15) is fixed to the bottom end of the discharge pipe (14), air leak cover (2) is fixed to the upper part of the shell (1), air leak cover (2) covers the lower end of the feed pipe (12), and gasket (21) is fixed to the bottom of the air leak cover (2). Gasket (21) is close to the shell (1).

2. The automatic feeding and air-tightening device as described in claim 1, characterized in that, A scraping assembly is provided between the housing (1), the baffle (4), and the conical block (41). The scraping assembly includes a support rod (5), a screw (51), a scraper (54), an annular guide rail (55), and a connecting frame (56). The support rod (5) is fixedly connected between the baffle (4) and the conical block (41). The bottom end of the support rod (5) is fixedly connected to the screw (51). The connecting frame (56) is slidably arranged on the support rod (5). The connecting frame (56) is connected to the support rod (5). The inner wall of the support rod (5) is provided with a threaded groove (52), which is threaded with the screw (51). Multiple scrapers (54) are fixed on the connecting frame (56). The scraping surfaces of the multiple scrapers (54) are in close contact with the inner wall of the housing (1). Two vertically distributed annular guide rails (55) are fixed inside the housing (1). The housing (1) is in contact with the annular guide rails (55), and the scrapers (54) are in sliding contact with the two annular guide rails (55).

3. The automatic feeding and air-tightening device as described in claim 2, characterized in that, It also includes a dust cover (53), and the top of the connecting frame (56) is fixed with a dust cover (53), which blocks the position where the connecting frame (56) has a threaded groove (52).

4. The automatic feeding and air-tightening device as described in claim 3, characterized in that, The bottom of the feed pipe (12) is flush with the top of the inner shell (1).

5. The automatic feeding and air-tightening device as described in claim 4, characterized in that, The upper end of the support rod (5) passes through the baffle (4) and the cone block (41), and extends beyond the cone block (41) by a section.

6. The automatic feeding and air-tightening device as described in claim 5, characterized in that, The diameter of the baffle (4) and the bottom diameter of the conical block (41) are both adapted to the inner diameter of the feed pipe (12).

7. The automatic feeding and air-tightening device as described in claim 6, characterized in that, The lowest point of the inclined surface of the inclined block (31) is aligned with the bottom surface of the baffle (4), and the highest point of the inclined surface of the inclined block (31) is flush with the top of the inner shell (1).

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