ES1061516U - Food device for loading an oven with bulk material (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Feeding device for loading an oven (12) with bulk material (52), with a transport bottom (20), which is closed, at least partially, in a casing (18), with an inlet ( 22) and an outlet (24), with at least a first and a second closure element (28, 30) for separating a first chamber (32) within the housing (18) from a second pre-chamber (34) and with respect to a third rear chamber (36), which is preferably shaped for the gas tight connection with an inlet opening (16) of the furnace (12), so that the transport bottom (20) is inclined a angle (a) in relation to the horizontal, which at most is about 20º, with a vibratory drive mechanism (38) for loading the bulk material (52) to the outlet (24) and with a loading system (46) ) to load the inlet (22) with bulk material (52) in a horizontal direction or in a direction slightly inclined thereto. (Machine-translation by Google Translate, not legally binding)

Description

Power device to load an oven with bulk material.

The invention refers to a device of power to load an oven with bulk material, with a transport fund, which is closed, at least partially, with a housing, and that can be attached to an opening of entrance of an oven.

Through the patent DE-9,108,520 U1 is already known a device of feed for an oven for heat treatment of small parts. In it, a vibrating channel is provided that It can be coupled to the oven inlet. The vibrating channel can be filled by a gate, mounted on a system dynamometer, and that is filled from above through a hopper.

The well-known device is suitable for filling an oven with bulk material, so that at the same time it can Weigh the bulk material fed. An inconvenience of known feeding device is that when filling the bulk material through the hopper must exceed a high of fall not negligible, which can cause damage, since the fed parts have not yet been hardened.

Therefore, the invention aims to create a improved feeding device to load an oven with bulk material, whereby the possibility of bulk material damage. Also, the power device must ensure the safest charge possible and have a relatively simple construction and economical

Said object is achieved in accordance with the invention by means of a feeding device for charging a kiln with bulk material, with a transport bottom, which it is closed, at least partially, with a housing, with a entry and exit, with at least one first and one second closure element to separate a first chamber within the housing with respect to a second pre-chamber and with respect to a third rear chamber, which is preferably shaped for gas tight connection with an inlet opening of the oven, so that the transport bottom is inclined a angle relative to the horizontal, which at most is about 20º, with a vibrating drive mechanism to load the bulk material at the exit and a loading system to load the input with bulk material in the horizontal direction or in a slightly inclined direction with it.

In this way the object is completely resolved of the invention

According to the invention, a feed aided by vibration of bulk material in a oven, so that by nonexistent or only small tilt of the transport bottom with respect to the horizontal and with loading the entrance with bulk material in the direction horizontal or only slightly inclined with respect to it prevents a fall of bulk material. This way they avoid damage to the parts to be treated that are not yet in condition hard. In addition, thanks to the drive mechanism Vibrating ensures safe feeding of the material to bulk in the oven.

In another preferred embodiment of the invention, the transport bottom is inclined at an angle that is greater than or equal to 0 and less than or equal to 15 °. In that case, advantageously the angle of inclination is just so large that the bulk material does not slip without the presence of vibrations, but so that only a small vibration is enough to occur transport.

In this way, fall processes of the bulk material and careful feeding is guaranteed.

Preferably, the closure elements are essentially shaped as gas tight valves. This way the feeding device can be used as gate, in order to guarantee only a minimal mixing of the atmosphere of the furnace process space with the air from the environment.

In another preferred embodiment of the invention, the housing has an extension on its exit side, which can be inserted in the oven inlet opening.

In this way a feeding is possible supported by vibration of bulk material to a system of transport placed inside the oven.

In another advantageous embodiment of the invention there is an elastic seal means to close the housing with respect to the oven inlet opening.

This way a closure can be guaranteed Gas-tight oven feed device, at same time the drive mechanism can be used vibrating to load the bulk material to a system of transport inside the oven.

Preferably, the drive mechanism Vibratory is shaped for feeding supported by vibrations of the bulk material from the receiving container on the transport fund to the transport system of the oven.

In this way the advantageous effect of the system Vibratory to load the bulk material covers all the travel from the host vessel to the system Oven transport arranged below.

It is understood that the features of the invention cited above and those that will still be mentioned below, no they can only be applied in the indicated combinations but also in other combinations or individually.

Other features and advantages of the invention are indicated in the following description of an example of how to preferred embodiment, referring to the drawing.

The only figure shows a longitudinal section, very simplified, of a power device according to the invention, with an oven arranged in the entrance area.

In the figure it has been represented, in a form of very simplified embodiment, a feeding device of according to the invention for loading an oven 12 arranged to then, and indicated globally with reference 10.

In the case of the oven 12 it can be treated, by example of a feeder belt furnace, which presents a tape feeder 14 for transporting parts through the oven.

The oven 12 has an inlet opening 16, a which is coupled, tightly to gas, the device feeding 10.

The feeding device 10 has a bottom of transport 20 which is partially closed by a housing 18. The housing 18, consisting of several pieces, has a first chamber 32 or main chamber, which can be tightly closed to the gas with respect to a second preceding chamber 34 by means of a closure element 28 in the form of a mobile clapper. At first camera 32 connects a third rear camera 36, which can again separate, hermetically gas, from the first chamber 32, by means of a closure element 30 in the form of a mobile clapper. The third chamber 36 has an extension 26 extending through the oven inlet opening 16 and which ends with an outlet 24 directly on the belt conveyor 14 of oven 12, so that the bulk material, which is loaded onto the conveyor belt 20 as indicated by the arrow 15, can be loaded directly onto the tape furnace conveyor 14 12.

The transport fund 20, formed of several pieces, extends with an inclination, which from the entrance 22, has about 15º, with a lower inclination within the first chamber 32, which has about 10º, reducing through the extension 26 to the process chamber 12 of the oven. In that case, the inclination of the transport fund 20 within the extension 26, has only about 5º or less.

To guarantee, despite the reduced tilt of the transport bottom 20 a safe loading of the bulk material from to input 22 through the device feed to feed belt 14 of oven 12, has provided a vibrating drive mechanism, which has been represented only schematically with reference 38, and a through which the entire housing 18 can be vibrated, to ensure bulk material loading on the bottom of transport 20 to exit 24. For this purpose, housing 18 goes mounted to a support by its inlet end through a means elastic protector 40 and joined by the area in front of the opening of inlet 16 of the oven 12 through elastic elements 42 with braces arranged below. In this way, the housing 18 can be Fully vibratory operated through the mechanism of vibratory drive 38 and safe feeding is achieved of bulk material from entry 22 to exit 24.

To allow a gas tight seal of the housing 18 with oven 12 despite vibration, housing 18 it is provided with an elastic seal element 44 placed outside, in the area of extension 26 that penetrates through the entrance opening 16.

To charge the feeding device 10 you uses a charging system, indicated globally with the reference 46, whereby bulk material 52 can be taken from a supply container 50 in receiving containers 56 and be taken to input 22 of the feeding device 10.

For this, bulk material can be taken from the supply container 50, through an element of mobile closure 54, which reaches a receiving vessel 56 ' arranged below. In such a case, the host container can move horizontally by means of a drive horizontal, as indicated by arrow 61, and vertically by means of a vertical drive or a travel system 48, as indicated by arrow 49.

For loading, the receiving container can move directly to the position indicated with the reference 56 'under the supply container 50, moving upwards through the position indicated with reference 56, until it reaches a loading position 56 '' of the container host to transfer bulk material 52 directly to the input 22 of the feeding device.

For this purpose, the host vessel is closed by its side returned to the entrance 22 by means of a closure element 58. This is a mobile clapper here, which can be tilted up to yield bulk material to input 22 of the feeding device 10, as indicated the double arrow 59.

Through the closure element 28, 30, in the form of mobile, gas-tight flapper (according to arrows 28 and 31), now the bulk material can be fed from input 22 of the second chamber 32, the flap 28 being in position open, first to the first camera 32 or main camera. For the second flap 30 is closed. Once fed the bulk material to the first chamber 32, the first flap 28 and then the second flap opens 30. Now, with the help of the vibration drive mechanism 38 bulk material can be transported through the bottom of transport 20 to exit 24 and reach the transport system 14 of oven 12 in the direction of arrow 15. Once the first chamber, the first clapper 30, of so that chamber 32 can then be filled again with Bulk material.

In this way a careful loading of the oven 12 with bulk material, so that with both flaps 28, 30 or closing elements, an exit of the outdoor oven atmosphere.

Claims (6)

1. Power device to charge a oven (12) with bulk material (52), with a transport bottom (20), which is closed, at least partially, in a housing (18), with an inlet (22) and an outlet (24), with minus a first and a second closing element (28, 30) for separating a first chamber (32) inside the housing (18) with with respect to a second previous chamber (34) and with respect to a third rear chamber (36), which is preferably shaped for gas tight connection with an inlet opening (16) of the oven (12), so that the transport bottom (20) is inclined an angle (?) relative to the horizontal, which at most it is about 20º, with a drive mechanism vibrating (38) to load the bulk material (52) to the exit (24) and with a charging system (46) to load the input (22) with bulk material (52) horizontally or in one direction slightly inclined with respect to it. 2. Power device according to the claim 1, in which transport bottom (20) is inclined with an angle, which has 0? 15?. 3. Power device according to the claim 1 or 2, wherein the closure elements (28, 30) are essentially shaped like gas-tight flaps. 4. Power device according to the claim 1, 2 or 3 wherein the housing (18) has a extension (26) on its exit side, which can be inserted in the inlet opening (16) of the oven (12). 5. Power device according to the claim 4, wherein an elastic joint means is provided (44) to close the housing (18) with respect to the opening of oven inlet (16) (12). 6. Power device according to the claim 5, wherein the extension (26) is shaped to a feed supported by vibration of the bulk material (52) to a transport system (14) of the oven (12).