RussianPatents.com
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Device for controllable loading of harmful powder-like material into container. RU patent 2243927. |
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IPC classes for russian patent Device for controllable loading of harmful powder-like material into container. RU patent 2243927. (RU 2243927):
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FIELD: different industries. SUBSTANCE: proposed device for loading powder-like material into container contains housing whose open lower part terminates in hermetic apron. Said housing is connected to inlet pipe to deliver powder-like material and to pipe to remove gas. Movable valve in housing is adapted for interaction with said hermetic apron and is controlled by magnetic device. Case secured on lower part of housing and open in its central part to pass container has move-off device providing gripping and carrying over of container cover. Devices are provided to determine amount of powder-like material in container and at least one ventilating loop at level of perimeter of said hole in case and/or at level of said hermetic apron to provide removal of part of said powder-like material which can be found at said levels and direct material towards processing unit. EFFECT: provision of reliable and safe loading of fine abrasive powders into container. 6 cl, 1 dwg
The present invention relates to a device for the controlled loading of harmful powdered material in the container. The prior art In some industries are powdered materials, which are to be Packed in the containers. Such materials are often harmful agents because, on the one hand, they can create a hazard for the environment, and on the other, represent a fine abrasive powder. The invention The problem to which the invention is directed, is to provide a device that allows controlled loading powder material into the container, i.e. the container for packing, and, in addition, the development of technological operations, i.e. the process to fill the specified container under conditions suitable from the point of view of safety. The device according to the invention is characterized in that it contains: - housing is essentially cylindrical in shape, open the lower part of which ends with a sealant surrounding the node (so-called apron), with the specified unit is attached to the inlet pipe, which is designed to enter the powdered material to the pipe to remove the gas and to the top tube containing a magnetic device that controls a movable valve mounted for movement in a specified case and made interoperable with the specified sealed apron, - the casing is fixed on the bottom part of the housing that is open in its Central part to ensure passage of the container and containing exhaust mobile device that can capture and transfer container, means for determining the amount of powdered material in the container, and at least one vent path, providing a level of perimeter holes specified casing and/or at the level specified sealed apron removal of the part of the powdery material, which may be at these levels. These means for determining the amount of powdered material may contain means for weighing the container, for example, the device type of the group, the balance. Means for determining the amount of powdery material can further comprise a sensor that determines the level of powdered material. The ventilation circuit preferably includes means for pumping attached to the unit for processing the specified powdered material. The device may further comprise means, which creates a reduced pressure within the enclosure relative to the surrounding space. The invention will be fully understood upon consideration of the following description with reference to the accompanying drawing, which shows a device according to the invention in longitudinal section. Information confirming the possibility of carrying out the invention On the drawing submitted and identified the following components: the housing 1 of the apparatus, having essentially cylindrical shape with a diameter in its lower part, sufficient to load the back of the container. Around the lower part 2 of the case is made apron 3, providing a good seal, on the one hand, when communicating with the upper part of the receiving container, and on the other, when interacting with a movable valve; pipe 4, through which is loaded powdered material. It is obvious that the slope of the specified pipe relative to the horizontal should be selected so as to ensure a regular flow of powdered material; pipe 5 for removal of the gas by suction; the inner part of this pipe is provided with a filter element 15, and at its end it goes into the exhaust manifold 5A attached to the means of removal of gas and processing gas and powder; closed upper pipe 6 located above the housing 1 and mounted thereon; the movable valve 7 mounted with the possibility of sliding movement in the housing 1 and, by means of a connecting rod, built in valve, fastened with a magnetic core 9, sliding in the pipe 6 and allows you to control the specified valve 7 within the casing 1 under the action of the magnet 8 on the outer side of the specified pipe 6. The lower surface of the movable valve consists of an annular portion of the sphere (or the Torah) and the boundary flat surface; the size of the specified fragment such that exactly match the inner surface of the apron 3, forming a saddle to ensure a good seal at this level. At this level the above fragment sphere valve 7 has a maximum diameter greater than the diameter of the hole of the apron 3, which, in turn, several smaller holes of the container, thus providing a sliding powdery material on the inner surface of the apron to hit the container with the annular free end of the apron 3 is in contact with the free edge of the inner wall of the container 19 and/or adjacent to it); the casing 10 is attached to the lower part of the housing 1. This cover has, for example, is essentially rectangular in shape with a width that is larger than the diameter of the container. In its Central part of the casing has an opening with a size sufficient for passage of the container. Within this casing is a mobile device 11, which can be shifted along the length of the casing by its forward movement; the offset of the specified mobile device 11 is set by a device not shown in detail and which is located outside the casing. This mobile device 11 has a cavity to accommodate a lid 12 of the container. The grip cover is provided by pumping through pipes 16. The specified mobile device also has a hole 17, the diameter of which is at least equal to the opening of the container; two vent path 14: one of them (14 1 ) has an inlet for air, combine with the peripheral part of the container when the latter is installed in operating position. When the specified air flows from the space surrounding the device, for example, from protective fencing type of box in which the device is installed. The second circuit (14 2 ) contains an inlet for air located above the apron 3. When this air is also supplied from the surrounding space. These two circuits have output air hole (you can combine them into one common hole indicated by the index 18)that it is expedient to attach to the means for pumping and processing of remote gas that may be contained in the powdered material; devoted sensor 13, known as such (per se), to determine the level of powdered material introduced into the container when the level reaches a predetermined height. The device according to the invention is applied during the process, the main steps of which are as follows. At the first stage when the movable valve 7 is seated on the saddle apron 3 raised (reserved) sensor 13 and the cover 12, secured beneath the mobile device 11, the container 19 is moved into position. Such installation is performed by entering the upper part of the container through the opening in the casing (which properly installed mobile device 11) up until the top edge of the container 19 will not come into contact with the outer surface of the apron 3 and will not compress the spring 20. In this position, the container 19 and the apron 3 adjacent to the lower part 2 of the housing 1 and participate in the dynamic localization of the device relative to the protective sheath, as will be described in more detail below. In the second stage, the movable valve 7 rises above the input level of the pipe 4. In the third phase, the sensor 13 is lowered into the casing 1 and through the said pipe 4 into the container 19 is loaded powdered material. When the sensor 13, responsive to loading the powder material, shows that the filling of the container 19 is completed, the introduction of the powdered material through the tube 4 is stopped, the sensor 13 is given displacement along its axis, the movable valve 7 is again lowered onto the apron 3, to close the internal volume of the housing 1, then the specified container drops down to display its top edge to the level of the bottom plane of the casing 10. Next, the mobile device 11 is placed inside the casing, is provided in the forward movement, allowing the cover 12 is placed over the container. Then this cover is detached from the mobile device 11 to install it on a container. After that, the container with its lid removed. It is obvious that during all these operations in order to ensure maximum safety, continuously functioning of the ventilation circuit. At the end of the specified ventilation path contains the above-mentioned means (5A, 18) suction attached to the unit for processing gases, which may contain powdered material. For the device according to the invention it is preferable that the processing unit is additionally included means creating within the specified enclosure 1 low pressure relative to the surrounding space. It is obvious that the following three possible situations. The valve 7 closes the housing 1, being in contact with the apron 3 (this is not depicted). At this level gaps that exist, firstly, between the apron 3 and the lower part of the housing 1, and secondly, between the mobile device 11 (closing position not shown) and the bottom hole of the casing 10, is a dynamic sealing due to sustained low pressure in the internal volume of the device relative to the surrounding space by pumping through pipes 5A and 18 of the air flow circulating from the inlet 14 1 and 14 2 to air in the localization of the above clearances for removal through them any powdered material which can appear there. The container 19 is mated with the hole of the casing 10 and the apron 3, when the valve 7 is in the lower position (the first stage mentioned above). In this case, the inlet 14 to 1 air allows you to avoid any discharge of powdered material from the device at the level of the openings in the casing due to the phenomenon of dynamic seal, which was just described. The container 19 is mounted on the apron 3 (second and third stages mentioned above), while the valve 7 is in its upper position (see drawing). However, in order to avoid any contamination due to uncontrolled release of powdery material from the device is installed above the dynamic protection. Actually vent the node that generated the input circuits (14 1 and 14 2 ) for air gaps existing between the apron 3 and the lower part 2 of the housing 1 (see dotted arrows, showing the passage of ventilating air at the level of these gaps) and output pipe (5A and 18), creates a negative pressure in the internal volume of the housing 1 and the container 19 relative to the surrounding space and to minimize the danger of leakage of the powdery material in the direction specified in the external environment. Of course, loading the powder material into the pipe 4 preferably has an intermittent character, i.e. it occurs only when the container 19 is in position for filling. According to a particular variant embodiment of the invention for maintaining the container and moving it uses the device 22 type balance, which forms a weighing means for measuring a known manner the weight of the specified container 19 containing various amounts of powdered material. In this embodiment, the sensor 13, which defines the level, only works in the case of drift of the weighing device and ensures that the container is full. It should be noted that the weighing device 22 of the type, the balance and the sensor 13 levels are a means to determine the quantity of powdered material contained in the container, or by measuring the weight, or by assessing the level achieved powdered material. 1. Device for the controlled loading of harmful powdered material in the container containing 2. The device according to claim 1, characterized in that the said means for determining the amount of powdery material containing means for weighing the container. 3. The device according to claim 2, characterized in that the said means of weighing relate to the type of device from a group, the balance. 4. The device according to claim 2, characterized in that the said means for determining the amount of powder material further contain a sensor that determines the level of powdered material. 5. The device according to claim 1, characterized in that the ventilation circuit includes means for pumping attached to the unit for processing the specified powdered material. 6. The device according to claim 1, characterized in that it additionally includes means for creating a reduced pressure within the enclosure relative to the surrounding space.
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