Water-circulating vacuum feeder

Abstract

The invention relates to a water-circulating vacuum feeder, which is characterized in that a storage box is connected with a feed inlet of a fed-material storage silo by a material pumping pipe; a stirring motor and an air pump valve are respectively arranged on the fed-material storage silo, and the stirring motor is connected with stirring vanes; an escherichia coli material filtering device and an air filtering device are respectively arranged in the fed-material storage silo; an air suction port of the fed-material storage silo is connected with an air-pumping inlet of a water-circulatingvacuum pump by a pipe, the water-circulating vacuum pump is connected with an air inlet of a water tank by a pipe, the water tank is connected with a water-return device by a pipe, and a water-tank air outlet and a water-level observation window are respectively arranged on the water tank; and a discharged-material storage silo is connected below the fed-material storage silo, a silo valve is connected below the discharged-material storage silo, and a material-receiving device is connected below the discharged-material storage silo. In the invention, no phenomenon such as dust wandering and dust counterattack occurs in the processes of discharging, material conveying and feeding, and a water-circulating vacuum feeding principle is adopted, therefore, the noise pollution of moving parts tothe environment is restrained, the application scopes of materials are expanded, and the feeding effects of various materials are satisfied.

Description

technical field [0001] The invention belongs to the field of mechanical equipment, and relates to a water cycle vacuum feeder, especially suitable for mechanical automatic feeding equipment such as packaging machines, tablet presses, capsule filling machines, dry granulators, pulverizers, and vibrating screens. Background technique [0002] Feeding machinery and equipment are necessary equipment for automatic feeding of packaging machines, tablet presses, capsule filling machines, dry granulators, pulverizers, vibrating screens, etc. This equipment is currently widely used in many industries such as mining, medicine, electric power, For the lifting of massive, powdery and short fibrous solid materials in grain, food, metallurgy, machinery, building materials, chemical industry, rubber, and other industries, its operating performance is directly related to the production environment (noise, dust) and operation of the application market. The labor intensity of the staff, as we...

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Problems solved by technology

[0004] ①It is difficult to achieve 100% separation of gas and material in the material circulation process formed by the receiving parts of this type of equipment, so that a certain amount of gas still remains in the material transported to the receiving equipment; and the material flow formed by the feeding equipment Entering the receiving equipment (packaging machine) is not continuous, and is intermittent (momentary acceleration of gravity combined with pressure) resulting in backflow (called material counterattack)

[0005] ②In order to meet the power requirements, this type of equipment generally uses a vortex vacuum pump with a large power. When the vortex vacuum pump is working, the frequency of opening is very high, and the result of the cylinder valve opening action results in environmental noise when the feeder is working. Great pollution (for example, when the 100MM space feeding machine is working, the communication sound of people cannot be heard), so the noise pollution of the feeding machinery and equipment is large

[0006] ③ Since this type of feeding machine uses a vortex vacuum pump and the fan speed is fast, it takes away a lot of heat when it is working. In addition, the heat dissipation of the vacuum pump itself is not good, resulting in extremely high temperatures in the surrounding environment of the equipment and the feeding machine equipment. A piece of raw yam, put it on the feeder, and bake it all morning

[0007] 2. Vibrating screw feeder: It is one of the mainstream products of domestic feeder at present. The disadvantage of the product is that this type of product has the characteristics of structural order acceptance and good visibility, but compared with the pneumatic vacuum feeder, the The phenomenon of powder material counterattack, coexistence of gas and air in the material, high noise and large dust in the environmental space also exists, and it is impossible to solve it

Regarding the prohibition of counterattack of materials during the extraction and transmission process (especially powder materials), the coexistence of gas materials entering the receiving device, the dust pollution of the space environment, and the huge noise when the feeding machine is working, many factors cannot meet the requirements of the application site. Objective requirements

It is also impossible to meet the GMP requirements of the food and pharmaceutical industries

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