Vacuum vibrating feeder

Abstract

The utility model discloses a vacuum vibration feeder which comprises a sealed feeding groove, a vibration motor, a stock bin and an articulated chute, the vibration motor is arranged below the sealed feeding groove, the feeding end of the sealed feeding groove is connected with the articulated chute through a first flexible connecting pipe, the upper end of the articulated chute is provided with an upper end sealing valve, and the lower end of the articulated chute is provided with a lower end sealing valve. The side face of the articulated chute is connected with a vacuum pump through a vacuumizing pipeline, a discharging port of the sealed feeding groove is connected with a stock bin through a second flexible connecting pipe, a lower end sealing valve is arranged at the lower end of a discharging port of the stock bin, a fixing hook is arranged on the side face of the sealed feeding groove, and an air filter and a pressure transmitter are arranged on the vacuumizing pipeline. A rubber reducing block is arranged on the hanging bracket, the upper end of the lifting hook penetrates through the rubber reducing block, and the lifting hook is fixedly connected with the rubber reducing block through a nut; the structure is small in size and large in conveying capacity, can be placed in a vacuum tank to work, and meanwhile can weigh materials and achieve one-time feeding.

Description

Technical Field

[0001] The utility model relates to the technical field of feeders, in particular to a vacuum vibrating feeder. Background Art

[0002] Vacuum refining is a fire refining method that removes impurities from crude metals at pressures below or far below atmospheric pressure. The primary tasks of vacuum treatment are degassing, floating non-metallic inclusions through molten steel circulation, and uniformizing the steel's composition and temperature. Furthermore, material addition systems provide multiple metallurgical functions, including deoxidation, decarburization, desulfurization, dephosphorization, and composition adjustment. This process is a secondary metallurgical technique closely related to the rapid development of steelmaking technology (particularly converter steelmaking) since the 19th century. During the vacuum refining process, vibrating feeders operating in near-vacuum conditions are required to transport the ferroalloy. There are such products on the market, but they are large in size and have high power loss. Chinese patent application No. 202411164249.6 discloses a vacuum tube vibrating feeder, in which the vibrating motor is fixedly assembled in the sleeve frame by bolts on the outer wall of the rotating rod close to the side away from the feed pipe, thereby changing the material transmission direction in the transmission pipe. The problem is that the structure is complicated and cannot achieve accurate feeding of the conveyed material. It is large in size and cannot be placed in a vacuum tank for operation. Similarly, Chinese patent application Nos. 200920084661.1 and 201520177137.4 also have the problem of being unable to weigh the material and cannot achieve accurate feeding. In view of the above problems, a vacuum vibrating feeder is proposed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a vacuum vibrating feeder, which has a small structure and a large conveying capacity. It can be placed in a vacuum tank for operation, and can also realize material weighing and one-time feeding, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vacuum vibrating feeder, comprising a sealed feeding trough, a vibrating motor, a silo and a chute, the vibrating motor being arranged below the sealed feeding trough, the feeding end of the sealed feeding trough being connected to the chute via a first flexible connecting pipe, the upper end of the chute being provided with an upper end sealing valve, the side of the chute being connected to a vacuum pump via a vacuum extraction pipeline, the discharge port of the sealed feeding trough being connected to the silo via a second flexible connecting pipe, the lower end of the silo discharge port being provided with a lower end sealing valve, and a fixing hook being provided on the side of the sealed feeding trough.

[0005] Furthermore, an air filter and a pressure transmitter are provided on the vacuum pipeline.

[0006] Furthermore, it also includes a hanger and a hook, the hanger is provided with a rubber reduction block, the upper end of the hook passes through the rubber reduction block, and the hook and the rubber reduction block are fixedly connected by a nut.

[0007] Furthermore, a support plate is provided in the circumferential direction of the silo, a support frame is provided below the support plate, and a weighing sensor is provided between the support frame and the support plate.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1. The structure has a small volume and a large conveying capacity. It can be placed in a vacuum tank for operation. At the same time, it can realize material weighing and one-time feeding.

[0010] 2. The vacuum pump evacuates the feeder through the vacuum pipeline, so that the feeding work is carried out in a negative pressure vacuum, which can reduce impurities in the batching process, can realize transportation in a near vacuum state, can work continuously, and is used to improve the quality of steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the hanger structure of the utility model.

[0013] In the figure: 1 lower end sealing valve, 2 support frame, 3 weighing sensor, 4 support plate, 5 vibration motor, 6 vacuum pump, 7 vacuum pipeline, 8 air filter, 9 pressure transmitter, 10 upper end sealing valve, 11 first flexible connecting pipe, 12 slide pipe, 13 sealed feeding trough, 14 second flexible connecting pipe, 15 silo, 16 hanger, 17 rubber weight reduction block, 18 hook, 19 fixed hook. DETAILED DESCRIPTION

[0014] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0015] See also Figure 1-2The utility model provides a technical solution: a vacuum vibrating feeder, including a sealed feeding trough 13, a vibrating motor 5, a hopper 15 and a chute 12. The vibrating motor 5 is arranged below the sealed feeding trough 13. The vibrating motor 5 and the sealed feeding trough 13 together constitute the feeder body. The sealed feeding trough 13 is driven by the vibrating motor 5 to vibrate and feed, thereby realizing the feeding work in the batching system. The feeding end of the sealed feeding trough 13 is connected to the chute 12 through a first flexible connecting pipe 11. The first flexible connecting pipe 11 can reduce the vibration transmitted to the chute 12, reduce the vibration caused by other components, and extend the service life of the equipment. The upper end of the chute 12 is provided with an upper end sealing valve 10, and the side of the chute 12 is connected to the vacuum pipe 7. The vacuum pump 6 is used to evacuate the feeder through the vacuum pipeline 7, so that the feeding operation is carried out in a negative pressure vacuum, which can reduce impurities in the batching process, can realize transportation in a near vacuum state, can work continuously, and is used to improve the quality of steel; the discharge port of the sealed feeding trough 13 is connected to the silo 15 through the second flexible connecting pipe 14, and the lower end of the discharge port of the silo 15 is provided with a lower end sealing valve 1, and the vacuum vibration feeder is sealed by the lower end sealing valve 1 and the upper end sealing valve 10, and degassing is carried out by the vacuum pump 6. A fixed hook 19 is provided on the side of the sealed feeding trough 13, and the fixed hook 19 is used to hang the sealed feeding trough 13 on the bracket of the batching system, which has the advantage of easy installation.

[0016] An air filter 8 and a pressure transmitter 9 are provided on the vacuum pipeline 7. The air filter 8 is used to filter the gas in the vacuum pipeline 7. The pressure transmitter 9 is used to transmit the signal to the electronic control system.

[0017] A rubber reduction block 17 is provided on the hanger 16, and the upper end of the hook 18 passes through the rubber reduction block 17. The hook 18 and the rubber reduction block 17 are fixedly connected by a nut. The rubber reduction block 17 plays a role in reducing vibration transmission. The hanger 16 is connected to the system bracket and can also be connected by a suspension rope. The specific connection method is selected according to actual conditions.

[0018] A support plate 4 is provided in the circumferential direction of the silo 15, a support frame 2 is provided below the support plate 4, and a weighing sensor 3 is provided between the support frame 2 and the support plate 4. The weighing sensor 3 is used to detect the weight of the material in the silo 15. When the weight of the material reaches the set value, the control system issues a command and the vibration motor 5 stops working.

[0019] Working principle: initially, the upper sealed valve 10 and the lower sealed valve 1 are both closed. First, start the vibration motor 5, then open the upper sealed valve 10, and the material enters the silo 15 through the sealed feeding trough 13. When the material weight reaches the set value, the vibration motor 5 stops working, closes the upper sealed valve 10, and then starts the vacuum pump 6. When the feedback vacuum degree reaches the set value, the vacuum pump 6 stops working, the lower sealed valve 1 is opened, and the material in the silo 15 is emptied. Then the lower sealed valve 1 is closed to complete one feeding.

[0020] The above shows and describes the basic principles, main features and advantages of the present invention. Without departing from the spirit and scope of the present invention, the present invention may also have various changes and improvements, which fall within the scope of the present invention to be protected.

Claims

1. A vacuum vibrating feeder comprising a sealed feed trough (13), a vibrating motor (5), a silo (15) and a chute (12), characterized in that: The vibration motor (5) is arranged below the sealed feeding trough (13); the feeding end of the sealed feeding trough (13) is connected to the chute (12) through a first flexible connecting pipe (11); the upper end of the chute (12) is provided with an upper end sealing valve (10); the side of the chute (12) is connected to a vacuum pump (6) through a vacuum extraction pipeline (7); the discharge port of the sealed feeding trough (13) is connected to the silo (15) through a second flexible connecting pipe (14); the lower end of the discharge port of the silo (15) is provided with a lower end sealing valve (1); and a fixing hook (19) is provided on the side of the sealed feeding trough (13).

2. A vacuum vibrating feeder according to claim 1, characterized in that: An air filter (8) and a pressure transmitter (9) are provided on the vacuum pipeline (7).

3. The vacuum vibrating feeder according to claim 1, characterized in that: It also includes a hanger (16) and a hook (18), wherein a rubber reduction block (17) is provided on the hanger (16), an upper end of the hook (18) passes through the rubber reduction block (17), and the hook (18) and the rubber reduction block (17) are fixedly connected by a nut.

4. The vacuum vibrating feeder according to claim 1, characterized in that: A support plate (4) is provided in the circumferential direction of the silo (15), a support frame (2) is provided below the support plate (4), and a weighing sensor (3) is provided between the support frame (2) and the support plate (4).

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