RU2450963C2 - Loose material vacuum unloader - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to transfer of materials, particularly, to vacuum unloader of loose materials with grain size of 0.1-10.0 mm to be used in food industry, pharmaceutics, etc. Proposed device comprises hollow cylindrical housing 1 with top and bottom covers 2 and 3, ejection system consisting of ejector 4 and receiver 5 with filter 6 secured on inner side 7 of cover 2. Side surface 9 of housing 1 has opening from inlet branch pipe 10. Device is provided with air control valves 11 with air preparation system made up of preparation unit 12 and air feed fitting 13 connected with control unit 14. Bottom cover 3 is secured on face 15 of housing 1 with drive made up of two air cylinders 16 secured vertically on horizontal plates 17, interconnected and connected with top cover 2 by coupling studs 18. Ends of air cylinder rods 19 are coupled by horizontal pin supporting rollers 21 interacting with bottom cover.

EFFECT: ruled out chocking-up.

2 dwg

Description

The invention relates to the field of transportation of materials, namely, to the design of a vacuum device for unloading bulk food, pharmaceutical, chemical and other materials ranging in size from 0.1 to 10 mm

A vacuum device for unloading bulk materials is known, containing a hollow body made of a cylindrical shape with upper and lower covers, the last of which is connected to the drive, an ejection system consisting of an ejector and a receiver with elements of aspiration and filtration, an inlet pipe connected to the body and pneumatic valves with control unit [1]. This device is the closest to the invention in technical essence and the achieved result and is accepted by the applicant as a prototype.

A disadvantage of the known vacuum device is the low performance, which consists in the fact that when using the internal cone-hub, freezing of bulk material in the discharge zone of the device occurs.

The technical result of the invention is to improve performance.

The specified technical result is achieved in that in a vacuum device for unloading bulk materials containing a hollow body made of a cylindrical shape with upper and lower covers, an ejection system consisting of an ejector and a receiver with a filter, an inlet pipe connected to the body, a control unit, pneumatic valves and the drive of the lower cover, the lower cover is fixed to the end of the housing, the drive of which is made in the form of two pneumatic cylinders, vertically mounted on horizontal plates placed in height e of the housing and secured to the top cover by means of tie rods, the ends of the pneumatic cylinder rods being interconnected by a horizontal axis on which the rollers interacting with the bottom cover are located, while the ejector and receiver are located on the outer surface of the top cover on which the reset and blowdown valves are mounted filter, and on its inner surface a filter is fixed, and the pneumatic distributors have an air preparation system, and the control unit is connected to the pneumatic distributors.

The essence of this invention is illustrated by drawings, where:

Fig. 1 shows a general view of a vacuum device;

Fig. 2 - control unit, pneumatic valves with air preparation system.

The vacuum device for unloading bulk materials contains a hollow body 1 made of a cylindrical shape with upper 2 and lower 3 covers, an ejection system consisting of an ejector 4 and a receiver 5 with a polystyrene filter 6 fixed to the inner surface 7 of the upper cover 2 with a clamp 8. An opening for the inlet pipe 10 is formed on the side surface 9 of the housing 1. The vacuum device is equipped with pneumatic valves 11 with an air preparation system made in the form of a preparation unit 12 and an air supply fitting 13, a connection data with the control unit 14.

The bottom cover 3 is fixed on the end face 15 of the housing 1, the drive of which is made in the form of two pneumatic cylinders 16 vertically mounted on horizontal plates 17, interconnected and the upper cover 2 by means of tie rods 18. The rods 19 of the pneumatic cylinders 16 are connected by a horizontal axis 20, and the rollers 21 located on the specified axis and interact with the lower cover 3. The ejector 4 and the receiver 5 are located on the outer surface 22 of the upper cover 2, on which the reset valves 23 and the purge valves 24 of the filter 6 are mounted.

A vacuum device for unloading bulk materials works as follows.

The bottom cover 3 is closed by two pneumatic cylinders 16 and the ejector 4 is turned on for the duration of the timer 25 installed in the control unit 14. After the timer 25 has expired, the ejector 4 stops working, the purge valve 24 of the filter 6 is activated, the filter 6 is blown through the air from the receiver 5.

The bottom cover 3 is opened using two pneumatic cylinders 16 for the duration of the timer 26 installed in the control unit 14, and the bulk material is unloaded. After the timer 26 has expired, timer 25 is activated and the cycle repeats.

The use of this invention will eliminate the hang of the material during unloading of the vacuum device, avoid contact of the bulk material with the pneumatic drive of the lower cover, increase the working volume of the vacuum device, improve filter cleaning due to the possibility of installing receivers of increased volumes.

Information sources

1. Operating manual for vacuum systems in 2004 - the prototype company PIAB (Sweden) model VC200, VC400.

Claims (1)

A vacuum device for unloading bulk materials, comprising a hollow body made of a cylindrical shape with upper and lower covers, an ejection system consisting of an ejector and a receiver with a filter, an inlet pipe connected to the body, a control unit, pneumatic valves and a lower cover drive, characterized in that the bottom cover is fixed on the end of the casing, the drive of which is made in the form of two pneumatic cylinders, vertically mounted on horizontal plates placed along the height of the casing and fixed to the upper cover by means of tie rods, the ends of the pneumatic cylinder rods being interconnected by a horizontal axis on which the rollers are interacting with the lower cover, while the ejector and receiver are located on the outer surface of the upper cover, on which the filter reset and purge valves are mounted, on the inner surface a filter is fixed to it, and the pneumatic distributors have an air preparation system, and the control unit is connected to the pneumatic distributors.

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