A closed-loop feeding and receiving crushing mechanism

Abstract

This utility model relates to a closed-loop feeding and receiving crushing mechanism, comprising a rotary valve, an isolator, a feeder, a crushing device, a bag filter connected to the outlet of the crushing device, and a receiving tank for storing powder. The feeder is connected to the crushing device via a conveying pipe. The rotary valve is unidirectionally rotatable on the conveying pipe. The receiving tank is connected to the bag filter. The isolator is installed around the feeder and the receiving tank. This invention solves the problem of isolating external oxygen and moisture in existing large-scale crushing equipment.

Description

Technical Field

[0001] This utility model relates to the field of crushing mechanisms, and in particular to a closed feeding and receiving crushing mechanism. Background Technology

[0002] The crushing mechanism is used to crush materials into powder. Materials are fed into the crushing mechanism through its inlet, and powder is discharged through its outlet. For flammable, explosive, easily oxidized, or high-dust materials, the crushing mechanism must be isolated from external oxygen and moisture during feeding and receiving.

[0003] For small crushing equipment, the crushing equipment is installed inside an isolator to isolate it from the outside environment. For large crushing equipment, using a large-sized isolator would be more expensive.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a closed feeding and receiving crushing mechanism to solve the problem of how to isolate external oxygen and moisture for large-scale crushing equipment in the prior art.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A closed-loop material feeding and receiving crushing mechanism;

[0008] It includes a feeder, a crushing device, an isolator, a rotary valve, a bag filter connected to the outlet of the crushing device, and a receiving tank for storing powder; the feeder is connected to the crushing device through a conveying pipe; the rotary valve is installed on the conveying pipe for unidirectional rotation; the receiving tank is connected to the bag filter; and an isolator is installed around the feeder and the receiving tank.

[0009] A further technical solution is that the feeder includes a feed pipe, a feeding section connected to the inlet of the feed pipe, a screw rotatably disposed inside the feed pipe, and a first power device for driving the screw to rotate; the conveying pipe is connected to the feed pipe.

[0010] A further technical solution is that the pulverizing device includes a pulverizing cylinder, a fixed disc fixedly disposed inside the pulverizing cylinder, a movable disc rotatably disposed inside the pulverizing cylinder, a second power device for driving the movable disc to rotate, a movable cylinder disposed inside the pulverizing cylinder, and a third power device for driving the movable cylinder to rotate; the fixed disc and the movable disc are arranged opposite to each other and act on the material; the movable cylinder is connected to a bag filter.

[0011] A further technical solution is that the closed feeding and receiving crushing mechanism also includes a fan, the air outlet of which is connected to the crushing cylinder; and a filter, which is connected to the exhaust port of the bag filter.

[0012] A further technical solution is that the isolator includes: a housing, an operating position formed on the housing near the operator, and an inlet / outlet cylinder connected to the housing; the housing near the operator is made of transparent material.

[0013] A further technical solution is that the discharge ports of the bag filter are connected in parallel with cones; the size of the cones gradually decreases along the direction of powder movement; a butterfly valve is installed at the cone outlet to open and close the cone outlet.

[0014] A further technical solution is that the rotary valve includes a valve body connected to the conveying pipe, a fan blade that is unidirectionally rotated on the valve body, and a fourth power device for driving the fan blade to rotate; the fan blade contacts and seals the valve body; and a connecting piece of soft material is provided on the conveying pipe to connect the conveying pipe.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows: (1) When the feeder pushes the material through the conveying pipe, the rotary valve can rotate and the material enters the crushing device after passing through; when the crushing device flows into the gas, the rotary valve is prohibited from rotating and the rotary valve cuts off the gas to avoid interfering with the material conveying; the feeder feeds the material and the receiving tank receives the material, and isolators are installed around the feeder and the receiving tank to isolate them; the operator feeds and receives the material, and the external air cannot enter the feeder and the receiving tank; the crushing mechanism with closed feeding and receiving is isolated from the external air during operation to avoid material and powder contamination.

[0016] (2) The vibration of the feeder and crushing device is transmitted to the conveying pipe. The soft material connecting parts eliminate the vibration, the material is continuously conveyed to avoid leakage, and the sealing of the crushing mechanism for feeding and receiving materials is maintained to avoid material contamination.

[0017] (3) When the powder accumulates in the upper cone, open the butterfly valve of the upper cone and the powder falls into the upper cone. At this time, close the butterfly valve of the upper cone and open the butterfly valve of the lower cone. The powder falls into the receiving tank. When replacing the receiving tank, close the butterfly valve of the lower cone and unscrew the receiving tank to replace it with a new one. The collection of powder by the receiving tank and the replacement of the receiving tank will not affect the operation of the closed feeding and receiving crushing mechanism. External air cannot enter the bag filter. The operation process does not require stopping the machine, which improves the powder collection efficiency. Attached Figure Description

[0018] Figure 1 The diagram shows a front view of the crushing mechanism for the closed feeding and receiving of materials according to an embodiment of the present invention.

[0019] Figure 2 A three-dimensional structural schematic diagram of the closed feeding and receiving crushing mechanism according to an embodiment of the present invention is shown.

[0020] Figure 3 The diagram shows a left-side enlarged view of the feeder and conveying pipe according to an embodiment of the present invention.

[0021] Figure 4 An enlarged front view structural diagram of the pulverizing device according to an embodiment of the present invention is shown.

[0022] The attached diagram is labeled as follows: 1. Feeder; 11. Feeding pipe; 12. Feeding section; 13. Screw; 14. First power unit; 2. Crushing device; 21. Crushing cylinder; 22. Fixed plate; 23. Moving plate; 25. Moving cylinder; 26. Second power unit; 27. Third power unit; 3. Bag filter; 31. Cone cylinder; 32. Butterfly valve; 4. Receiving tank; 5. Conveying pipe; 51. Connecting component; 6. Isolator; 61. Housing; 62. Operating position; 63. Inlet / outlet cylinder; 7. Fan; 71. Filter; 8. Rotary valve; 81. Valve body; 82. Fan blade; 83. Fourth power unit. Detailed Implementation

[0023] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0024] Figure 1 The diagram shows a front view of the crushing mechanism for the closed feeding and receiving of materials according to an embodiment of the present invention. Figure 2 A three-dimensional structural schematic diagram of the closed feeding and receiving crushing mechanism according to an embodiment of the present invention is shown. Figure 3 The diagram shows a left-side enlarged view of the feeder and conveying pipe according to an embodiment of the present invention. Figure 4 This is a magnified front view of the pulverizing device according to an embodiment of the present invention. (Combined with...) Figures 1-4 As shown, this utility model discloses a closed feeding and receiving crushing mechanism, including an isolator 6, a feeder 1, a crushing device 2, a receiving tank 4, and a bag filter 3 connected to the outlet of the crushing device 2.

[0025] The feeder 1 is connected to the crushing device 2 via the conveying pipe 5. A rotary valve 8 is installed on the conveying pipe 5 in one direction. When the feeder 1 pushes the material through the conveying pipe 5, the rotary valve 8 can rotate, and the material enters the crushing device 2 after passing through. When gas flows into the crushing device 2, the rotary valve 8 is prohibited from rotating to cut off the gas flow and avoid interfering with the material conveying.

[0026] The crushing device 2 crushes the material into powder, and the gas carries the powder into the bag filter 3. The gas exits the bag filter 3, and the powder accumulates in the bag filter 3. The receiving tank 4 is connected to the bag filter 3, and the powder enters the receiving tank 4 for storage and recycling after the crushing mechanism stops working.

[0027] Feeder 1 feeds materials, and receiving tank 4 collects them. Isolators 6 are installed around feeder 1 and receiving tank 4 to isolate them. During feeding and receiving, outside air cannot enter feeder 1 and receiving tank 4. The closed feeding and receiving crushing mechanism isolates external air during operation, preventing material and powder contamination.

[0028] The feeder 1 includes: a first power unit 14 that drives the screw 13 to rotate, a feeding pipe 11 connected to the conveying pipe 5, a feeding part 12 connected to the feeding pipe 11, and a screw 13 rotatably disposed in the feeding pipe 11. Material is fed into the feeding part 12 and enters the feeding pipe 11, and the screw 13 drives the material into the conveying pipe 5.

[0029] The rotary valve 8 includes a valve body 81, a fan blade 82, and a fourth power unit 83. The fan blade 82 contacts the inner surface of the valve body 81 and seals the valve body 81. The upper and lower ends of the valve body 81 are connected to the conveying pipe 5. The fan blade 82 extends in a diffused straight line with the driving end of the fourth power unit 83 as the center. When material accumulates above the valve body 81, the fourth power unit 83 drives the fan blade 82 to rotate unidirectionally clockwise or counterclockwise, scraping the material and moving it below the valve body 81.

[0030] The conveying pipe 5 is equipped with a flexible connecting piece 51. The connecting piece 51 is a through structure that connects to the conveying pipe 5. The vibration of the feeder 1 and the crushing device 2 is transmitted to the conveying pipe 5. The flexible connecting piece 51 eliminates the vibration, ensuring continuous material conveying and preventing leakage. It also maintains the airtightness of the crushing mechanism for feeding and receiving materials, preventing material contamination.

[0031] The pulverizing device 2 includes a third power unit 27, a second power unit 26, a pulverizing cylinder 21, a fixed disk 22 fixedly disposed within the pulverizing cylinder 21, a movable disk 23 rotatably disposed within the pulverizing cylinder 21, and a movable cylinder 25 disposed within the pulverizing cylinder 21. The fixed disk 22 is located above the movable disk 23. The fixed disk 22 and the movable disk 23 are positioned opposite each other at the lower end of the pulverizing cylinder 21 and act on the material. The material falls along the pulverizing cylinder 21, passes through the hollow structure of the fixed disk 22, and contacts the movable disk 23. The second power unit 26 drives the movable disk 23, and under the action of rotational inertia, the material enters between the fixed disk 22 and the movable disk 23 and gradually moves outward to be ground into powder. Gas flows into the lower end of the pulverizing cylinder 21, causing the powder to rise along the pulverizing cylinder 21.

[0032] The movable cylinder 25 forms several holes to filter large-sized powder materials. The movable cylinder 25 has a double-layer structure to improve filtration capacity. The movable cylinder 25 is connected to the bag filter 3. The third power device 27 drives the movable cylinder 25 to rotate. The rising gas carries the powder material through the movable cylinder 25 and then flows into the bag filter 3.

[0033] The closed feeding and receiving crushing mechanism also includes a blower 7 connected to the lower end of the crushing cylinder 21 for air supply and a filter 71 connected to the exhaust port of the bag filter 3. The bag filter 3 is equipped with a filter bag to filter the powder, and the gas is filtered again by the filter 71 before being discharged to avoid residual powder in the gas.

[0034] The discharge port of the bag filter 3 is connected in parallel to the cone 31. The diameter of the cone 31 gradually decreases from top to bottom. The upper cone 31 is larger than the lower cone 31. A butterfly valve 32 is installed at the outlet of the lower end of the cone 31 to open and close the outlet of the cone 31. When powder accumulates in the upper cone 31, the butterfly valve 32 of the upper cone 31 is opened, and the powder falls into the upper cone 31. At this time, the butterfly valve 32 of the upper cone 31 is closed, and then the butterfly valve 32 of the lower cone 31 is opened, and the powder falls into the receiving tank 4. When replacing the receiving tank 4, the butterfly valve 32 of the lower cone 31 is closed, and the receiving tank 4 is unscrewed and replaced with a new receiving tank 4. The collection of powder by the receiving tank 4 and the replacement of the receiving tank 4 will not affect the operation of the closed feeding and receiving crushing mechanism. External air cannot enter the bag filter 3, and the operation does not require machine shutdown, thus improving the powder collection efficiency.

[0035] The isolator 6 includes a housing 61, an operating position 62 formed on the housing 61 near the operator, and an inlet / outlet cylinder 63 connected to the housing 61. The housing 61, with its sealed structure, is made of transparent material on the operator side. The operating position 62 is equipped with protective gloves for feeding or receiving materials, facilitating observation during operation. The inlet / outlet cylinder 63 connects to the side of the housing 61, allowing for easy handling of materials or movement into and out of the receiving tank 4.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A mechanism for pulverizing a closed feed material, characterized by, It includes a feeder (1), a crushing device (2), an isolator (6), a rotary valve (8), a bag filter (3) connected to the outlet of the crushing device (2), and a receiving tank (4) for storing powder; the feeder (1) is connected to the crushing device (2) through a conveying pipe (5); the rotary valve (8) is unidirectionally rotatable on the conveying pipe (5); the receiving tank (4) is connected to the bag filter (3); the isolator (6) is installed around the feeder (1) and the receiving tank (4).

2. The closed feed-pulverizing mechanism of claim 1, wherein The feeder (1) includes a feed pipe (11), a feeding part (12) connected to the inlet of the feed pipe (11), a screw (13) rotatably disposed in the feed pipe (11), and a first power device (14) for driving the screw (13) to rotate; the conveying pipe (5) is connected to the feed pipe (11).

3. The closed feed-pulverizing mechanism of claim 2, wherein The pulverizing device (2) includes a pulverizing cylinder (21), a fixed disk (22) fixedly disposed in the pulverizing cylinder (21), a movable disk (23) rotatably disposed in the pulverizing cylinder (21), a second power device (26) for driving the movable disk (23) to rotate, a movable cylinder (25) disposed in the pulverizing cylinder (21), and a third power device (27) for driving the movable cylinder (25) to rotate; the fixed disk (22) and the movable disk (23) are arranged opposite to each other and act on the material; the movable cylinder (25) is connected to the bag filter (3).

4. The closed feed-pulverizing mechanism of claim 3, wherein The closed feeding and receiving crushing mechanism also includes a blower (7), the air outlet of which is connected to the crushing cylinder (21); and a filter (71), which is connected to the exhaust port of the bag filter (3).

5. The closed feed-pulverizing mechanism of claim 2, wherein The isolator (6) includes: a housing (61), an operating position (62) formed on the housing (61) near the operator, and an inlet / outlet tube (63) connected to the housing (61); the housing (61) near the operator is made of transparent material.

6. The closed feed-pulverizing mechanism of claim 2, wherein The bag filter (3) has a cone (31) connected in parallel to the discharge port; the size of the cone (31) gradually decreases along the direction of powder movement; a butterfly valve (32) is provided at the outlet of the cone (31) to open and close the outlet of the cone (31).

7. The closed feed-pulverizing mechanism of claim 2, wherein The rotary valve (8) includes a valve body (81) connected to the delivery pipe (5), a fan blade (82) rotatably mounted on the valve body (81), and a fourth power device (83) for driving the fan blade (82) to rotate; the fan blade (82) contacts and seals the valve body (81); a flexible connecting piece (51) is provided on the delivery pipe (5) to connect the delivery pipe (5).

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