Filling nozzle for a solid fuel fireplace, filling nozzle system, solid fuel fireplace and solid fuel fireplace system

Description

[0001] The invention relates to a filling nozzle, a filling nozzle system, and a combustion unit comprising a filling nozzle and a solid fuel combustion unit system. Solid fuel combustion units are already known from the prior art; these serve to burn or utilize solid materials. To supply these systems with sufficient fuel, it is necessary to convey the fuel into the combustion chamber. This is usually done manually by opening a door and / or by means of a mechanical conveying unit. However, the disadvantage of manual fuel feeding is that it is time-consuming and must be repeated frequently. In contrast, the use of a conveying unit requires a large installation space to accommodate this conveying unit and the associated storage space.

[0002] GB 2 469 938 A shows a solid fuel stove for burning pelleted fuel, in particular wood pellets. The device has a combustion chamber with a basket in which the pellets are burned, and a gravity feed for pellets, which includes an inlet unit with an inlet head.

[0003] DE 8215553 relates to a furnace for burning lignite and coarse-grained solid fuels for attachment to existing heat exchangers.

[0004] DE 9218953 U1 shows a furnace for solid fuels, especially for pellets.

[0005] DE 10 2006 009 811 A1 relates to a heating appliance, in particular a fireplace stove, fireplace insert, stove insert, water heater, water heating appliance for hot water and heating systems or the like, with at least one combustion chamber provided in a housing, which is connected to a filling device for operation with pellets, wherein the filling device has a pellet storage chamber which can be filled via a filling opening and which is provided with a closing device.

[0006] US 440 966 A describes an ash sieve with a side discharge port.

[0007] The object of the present invention is therefore to enable the supply of solid fuel to the combustion chamber of a solid fuel combustion appliance, while requiring only a small amount of installation space.

[0008] This problem is solved by a filling nozzle for a solid fuel combustion appliance according to claim 1, by a filling nozzle system according to claim 6, by a combustion appliance according to claim 8, and by a combustion appliance system according to claim 13. Further features, embodiments, advantages, and configurations of the invention will become apparent from the dependent claims, the description, and the figures.

[0009] According to the invention, a filling nozzle for a solid fuel combustion appliance is provided. Advantageously, the filling nozzle comprises a body, wherein the body has, in particular, a filling opening and / or a discharge opening, wherein a channel can be formed between the filling opening and the discharge opening, in particular through the body, wherein solid fuel, in particular pellets, can be conveyed from the filling opening to the discharge opening through the channel, wherein the filling opening extends, in particular, in a filling direction, and wherein the discharge opening extends, in particular, in a discharge direction, wherein the filling direction and the discharge direction are advantageously transverse, in particular perpendicular, to each other. The filling nozzle according to the invention serves to transfer fuel, in particular solid fuel, from a transport container, in particular a sack or carton, into a combustion chamber or a storage chamber of a solid fuel combustion appliance.To enable the conveyance of solid fuel to a solid fuel combustion unit, the filling nozzle has a body, which may include a filling opening and a discharge opening. In addition to these two openings, the filling nozzle also includes a channel extending between the filling opening and the discharge opening. For example, the body may have or be configured with a channel through which solid fuel, particularly pellets, can be conveyed from the filling opening to the discharge opening. Advantageously, the filling nozzle is designed such that, especially in an installed position, the filling opening is located above the discharge opening, allowing the conveyance of solid fuel through the channel of the filling nozzle body to be gravity-driven. This results in a particularly energy-efficient device.The filling opening extends in a filling direction, this filling direction advantageously being directed at least transversely to the vector of gravitational acceleration, particularly in an installed state or position. The filling direction is, in particular, the average direction that a solid fuel must take to be introduced into the filling opening. Similarly, the discharge direction of the discharge opening is, in particular, the direction that a solid fuel takes or must take when exiting the discharge opening. Advantageously, the filling direction and the discharge direction can be oriented transversely to each other, in particular perpendicularly to each other. By "transversely to each other," it is understood in particular that the smaller angle formed between the filling direction and the discharge direction is at least 45°, preferably at least 75°, and most preferably at least 85°.By providing a filling nozzle with an outlet opening and a filling opening, which advantageously extend transversely to each other, the invention provides a device that is simultaneously space-saving and, moreover, achieves or enables a particularly compact, simple, and reliable refilling or filling of solid fuel for a solid fuel combustion appliance, particularly by utilizing gravity. Advantageously, in an installed state, which can also be referred to as the installed position, the filling nozzle is oriented such that the filling opening extends partially through an opening in the combustion chamber of the solid fuel combustion appliance and / or the outlet opening is conductively connected to a storage container and / or a combustion chamber or a combustion chamber of the solid fuel combustion appliance.

[0010] According to the invention, the filling spout has a chute that is hinged, in particular about a transverse axis, wherein the chute has a main body, in particular a flat one, the main body advantageously extending in a main direction, and wherein the chute is hinged from the filling opening. The transverse axis is advantageously transverse, in particular perpendicular, to the filling direction and / or the discharge direction. Particularly preferably, the transverse axis is also perpendicular to the direction of the acceleration due to gravity, at least in the installed position. This acceleration due to gravity is advantageously arranged or oriented parallel to the discharge direction. A hinged design is understood in particular to mean that the chute, in particular its main body, can be folded or unfolded via a rotary joint or...The chute has a rotatable mounting on another component, in particular on the filling spout, such that at least a rotational movement of the entire chute or at least the main body about the transverse axis relative to the other component is possible. Advantageously, this rotatable mounting of the main body or the chute of the filling spout is such that the translational degrees of freedom are completely restricted by the possibility of rotation. In other words, this can mean that the chute or the main body of the chute can be fixed to the filling spout or the body of the filling spout by means of a hinge in such a way that rotation about the transverse axis is possible, but separation of the chute relative to the body, in particular by a positive locking mechanism, is prevented by the hinge or another fastening means. The main body of the chute is in particular that body or...The component or assembly of the chute, which is hingedly mounted to the body of the filling spout via a mounting device or fastening. The main body is advantageously formed in one piece to achieve a particularly mechanically robust chute. This main body extends, among other things, in a principal direction, which can be, in particular, the direction in which the main body can have its greatest principal dimension. For example, the principal direction of the main body can therefore be the direction in which the length of the main body is determined. Advantageously, this principal direction can be oriented perpendicular to the transverse axis.

[0011] Preferably, the main body is planar. Planar can be understood, among other things, to mean that the two dimensions in which the main body has its largest main dimensions are perpendicular to each other and / or span a plane. For example, the main body can therefore have its two largest dimensions in the main direction and in a direction perpendicular to this direction. Advantageously, the main body has its smallest dimension in a direction that is again perpendicular to these two directions, which preferably should not exceed 5 cm, 3 cm, or 2 cm. The main body or the chute is expediently mounted on the body and / or the filling spout in such a way that, in a first (folded) position of the chute, the main body or the entire chute is located within the filling opening, and in a second (unfolded) position, the main body or the entire chute is located within the filling opening.(in the unfolded position) the chute is at least partially located outside the filling opening. This allows for a particularly compact and space-saving design of the filling nozzle. For example, this can be achieved by positioning the hinge, which attaches the chute to the body of the filling nozzle, within the filling opening of the nozzle.

[0012] According to the invention, the chute has two hinged side panels, which are hinged around the main direction. The provision of two, especially hinged, side panels allows for particularly user-friendly filling, as these side panels can, for example, prevent solid fuel from falling sideways during a filling process. The hinged arrangement of these side panels makes the chute particularly space-saving and allows it to be positioned within the filling opening, especially when folded down. The two side panels are preferably flat to facilitate simple and cost-effective manufacturing. Additionally or alternatively, the side panels are preferably made of plastic or metal. However, it is particularly preferred that the entire chute be made of non-combustible material to minimize the risk of fire.The side panels are particularly preferably arranged in the distal end regions of the main body when viewed along the transverse axis. The distal end regions are defined as those areas of the main body that are oriented parallel to the transverse axis and are located a maximum of 3 cm, preferably a maximum of 2 cm, from the distal end of the main body along the transverse axis. This allows for a particularly space-saving chute.

[0013] In a preferred embodiment, the chute, particularly its main body, features a foreign object trap, especially in the form of a perforated sheet. By using a foreign object trap, the filling spout can prevent the combustion chamber of the fireplace being filled and / or the fireplace's storage container from being contaminated by foreign objects such as nails or other non-combustible and / or unwanted foreign objects. This can contribute to extending the service life of the fireplace and / or to more environmentally friendly combustion. The foreign object trap can be designed, in particular, as a perforated sheet. Advantageously, this perforated sheet is flat, and a further collection plate can be positioned perpendicular to the plane of the perforated sheet to reliably collect the separated foreign objects.The perforated sheet advantageously has a large number of holes, for example arranged regularly, which may expediently each have the same or different diameters.

[0014] In an alternative or additionally preferred embodiment, the chute has a support, wherein the support is hinged, particularly about its transverse axis, relative to the main body. Advantageously, the support is hinged about the transverse axis by an angle greater than 90 degrees. In other words, this can mean that the support is rotatable by more than 90 degrees, particularly in relation to the main body. By providing a hinged support, a storage area for transport vehicles in which the solid fuel can be carried can be created in a particularly simple and effective manner. Therefore, the support can, for example, provide a storage option for bags or boxes in which the solid fuel is transported.Thus, by providing a support which can be folded around the transverse axis in relation to the main body, a particularly user-friendly and easy-to-handle filling option for a fireplace can be created.

[0015] Advantageously, the chute is designed to be foldable, so that in its folded position it lies within the filling opening of the filling nozzle. This results in a particularly space-saving chute. "Within the filling opening" can mean, among other things, that the chute is completely within the filling opening in its folded position. For example, the filling opening may extend beyond the folded chute in the filling direction when it is in its folded position.

[0016] Advantageously, the filling nozzle has a suction ring, wherein the suction ring particularly surrounds the conductive cross-section of the channel and / or is guided in a ring-like manner around the conductive cross-section of the channel. By providing a suction ring, the dust generated during a filling process can be easily extracted, thereby reducing the health risks to the operator and / or increasing the ease of use of the filling nozzle. The suction ring is advantageously arranged such that it annularly surrounds the cross-section of the channel through which a solid fuel is conveyed, particularly from the filling opening to the discharge opening. In other words, the suction ring forms a complete ring around the conductive cross-section of the channel for the solid fuel.In order to achieve a particularly easy-to-manufacture embodiment of the filling nozzle, the suction ring should be designed such that it surrounds the channel in one plane, this plane advantageously having a normal which can be oriented perpendicular to the filling direction and / or the discharge direction.

[0017] In a preferred embodiment, the suction ring has a suction port for the direct or indirect connection of a vacuum cleaner, and / or the suction ring has suction openings for drawing dust from the duct. The suction ring can be provided with a suction port which, in an installed state, can be positioned such that a vacuum cleaner can be connected to it. For example, the suction port can be designed such that it extends from inside a fireplace body to a boundary wall of the fireplace body and penetrates the wall there, so that a vacuum cleaner can be easily connected to the suction port from the outside. Advantageously, the suction port is connected to the suction ring in such a way that the connection position of the suction port on the suction ring is located at the lowest point of the suction ring.This allows gravity to be used particularly effectively to improve suction. The suction ring advantageously has a large number of suction openings, which can be designed to draw dust from the duct into the suction ring, especially when a vacuum cleaner is connected to the suction port.

[0018] Advantageously, the ratio of the cross-sectional area of ​​the outlet opening to the cross-sectional area of ​​the filling opening is in the range of 0.03 to 0.09, preferably in the range of 0.04 to 0.07, and particularly preferably in the range of 0.05 to 0.06. The relevant cross-sectional area is, in particular, that at the distal ends of the outlet opening and the filling opening, respectively, with the cross-sectional area being measured perpendicular to the filling direction and the outlet direction, respectively. If the ratio of the cross-sectional area of ​​the outlet opening to the cross-sectional area of ​​the filling opening is in the range of 0.03 to 0.09, this allows for a particularly simple and cost-effective manufacture of the filling nozzle.Should this ratio be in the range of 0.04 to 0.07, the applicant has surprisingly discovered that this allows for particularly simple and user-friendly filling through the filling nozzle. However, should the relevant ratio be in the range of 0.05 to 0.06, this allows for a certain alignment of the fuel during the filling process of the filling nozzle or the combustion chamber, particularly when using pellets as solid fuel, thus achieving a particularly high degree of filling of the combustion chamber or a storage chamber of the combustion chamber.

[0019] Advantageously, the cross-sectional area of ​​the discharge opening and / or the filling opening should be at least 5000 mm², preferably at least 6500 mm², and particularly preferably at least 7800 mm².

[0020] Advantageously, the cross-sectional area of ​​the filling opening is larger, in particular at least 10%, preferably at least 25%, particularly preferably at least 40%, and most preferably at least 70%, than the cross-sectional area of ​​the discharge opening. This allows for particularly easy fuel introduction.

[0021] Preferably, the cross-sectional area of ​​the discharge opening and / or the filling opening should be a maximum of 200,000 mm², preferably a maximum of 150,000 mm². This allows for a certain degree of compactness of the device. Advantageously, the body is a sheet metal part and / or a sheet metal structure, and / or the body is made of sheet metal. By designing the body as a sheet metal part or as a sheet metal structure, a particularly cost-effective yet combustion-resistant design of the filling nozzle can be achieved. It is especially advantageous if the body is made of an iron-containing sheet metal material, particularly steel. This allows for a particularly robust and simultaneously cost-effective design.

[0022] Another aspect of the invention may relate to a filling system. This filling system comprises a filling nozzle, as described above or below, and a cover unit, wherein the cover unit, in a covered state, covers the filling opening of the filling nozzle so that no solid fuel can be introduced into the filling opening, and / or wherein, in a released state, the cover unit enables or permits the introduction of solid fuel into the filling opening of the filling nozzle. Such a cover unit may, for example, be a plug, particularly made of sheet metal, and / or a cover door. This cover unit may be hingedly mounted on the filling nozzle and / or be a separate, particularly removable, unit. Advantageously, the cover unit is dimensioned such that, in the covered state, it at least partially, and preferably completely, covers the filling opening of the filling nozzle.In other words, the cover unit of the filling nozzle system can therefore be designed such that the projections of the filling opening and the cover unit, particularly in the filling direction, are at least substantially identical and / or exactly identical and / or the projection of the cover unit surrounds the projection of the filling opening. Substantially identical means that, within the usual manufacturing tolerances, the projection surfaces of the cover unit and the filling opening are congruent with each other. In other words, a maximum of 5% of the projection surface of the cover unit can therefore be located outside the projection surface of the filling opening, or vice versa. The cover unit can, in particular, be partially made of sheet metal or include sheet metal components.

[0023] In an advantageous embodiment, the cover unit is a door, wherein the door is expediently attached to the body of the filling nozzle, in particular hinged about the transverse axis or the direction of travel. This allows for a particularly compact design of the cover unit, while simultaneously ensuring that solid fuel cannot be introduced into the filling opening when the cover is closed. The door, or the leaf of this door, or the door leaf of the cover unit, is particularly flat, thus enabling a particularly simple and cost-effective construction. To reduce the risk of fire, the door of the cover unit and / or the cover unit as a whole should be made of a non-combustible material, in particular sheet metal.

[0024] Advantageously, the cover unit and / or the door of the cover unit can have a locking mechanism, which, for example, allows a latching function, so that the cover unit can at least be made more difficult and / or prevented from coming out of the covered position. This can, in particular, prevent the cover unit from opening unintentionally or the filling opening from being exposed.

[0025] Another aspect of the invention may relate to a combustion appliance, in particular a solid fuel combustion appliance. Advantageously, this combustion appliance comprises a combustion chamber, a combustion appliance body which extends in a longitudinal direction, and / or a filling nozzle, expediently as described above and below, and / or a filling system, in particular as described above and below. This allows the advantages described above and below to be easily realized in a combustion appliance. Expediently, the combustion chamber of the combustion appliance is the chamber in which the solid fuel introduced through the filling nozzle system and / or the filling nozzle is burned or utilized. In other words, the combustion chamber of the combustion appliance can therefore serve to utilize or burn the solid fuels introduced into the combustion appliance through the filling nozzle.Therefore, the combustion chamber is specifically a solid fuel combustion chamber. The fireplace is externally bounded by a fireplace body. This fireplace body advantageously extends in a longitudinal direction. The longitudinal direction of the fireplace is therefore, in particular, the direction in which the fireplace has its largest main dimension and / or in which the length of the fireplace is determined. The fireplace body thus bounds the fireplace perpendicular to this longitudinal direction, for example, in the form of masonry walls or by means of a concrete body. The fireplace itself can, in particular, be a room-air-independent fireplace. A room-air-independent fireplace has the advantage that the oxygen of the room in which the fireplace is located is not used for combustion, thus eliminating the need to ventilate the room and resulting in a particularly energy-efficient fireplace.Therefore, the fireplace should expediently have at least one air supply, which allows combustion air to be introduced into the combustion chamber. Additionally, or preferably alternatively, the fireplace should have an exhaust pipe, which allows combustion gases to be vented from the combustion chamber. These two pipes can be arranged side by side and / or coaxially.

[0026] In an advantageous embodiment, the combustion unit has a storage container, the storage container being directly or indirectly connected to the discharge opening and / or the combustion chamber, and serving to store solid fuels. The storage container is arranged, in particular, within the body of the solid fuel combustion unit. The storage container advantageously has a storage volume, which is, in particular, a volume larger than the volume in the channel and / or the filling nozzle. The storage container of the combustion unit is therefore a volume that is oriented or usable in such a way as to store this solid fuel. Advantageously, the storage container is connected directly or indirectly to the discharge opening of a filling nozzle, in particular as described above or below.A direct or indirect connection between the storage container and the discharge opening means that solid fuels can flow from the discharge opening into the storage container, for example, directly or indirectly via a pipeline. The storage container, in turn, can be directly or indirectly connected to the combustion chamber to allow solid fuel to be transferred from its storage volume into the combustion chamber. Advantageously, the storage container is positioned within the combustion chamber in such a way that solid fuels can flow from the storage container into the combustion chamber by gravity. This can be achieved, in particular, by arranging the storage container above the combustion chamber – especially in the longitudinal and / or discharge direction – when installed.By integrating the storage container within the body of the fireplace, a particularly space-saving fireplace can be achieved, which can nevertheless reliably achieve or guarantee the utilization of solid fuels in the combustion chamber for a certain period of time.

[0027] Advantageously, the storage container has a size or storage volume in the range of 10 to 50 liters, preferably 12 to 30 liters, and particularly preferably 15 to 20 liters. The size of the storage container refers to the storage volume available for storing the solid fuel. If the size of the storage container is in the range of 10 to 50 liters, a particularly compact and space-saving combustion unit can be achieved.If the storage container has a capacity of 12 to 30 liters, it can supply the fireplace for at least 24 hours of burning time and / or at least 12 hours of burning time, thus increasing the fireplace's convenience, as this size prevents the need for continuous refilling of the storage container with solid fuel, while simultaneously allowing for a particularly compact and space-saving fireplace. If the storage container has a capacity of 15 to 20 liters, it is particularly well-suited for storing pellets.

[0028] Advantageously, the fireplace body is made of concrete. A concrete body is defined as one in which at least 30%, preferably at least 50%, and particularly preferably at least 70%, and most preferably at least 80%, of the fireplace body consists of or is made of concrete. In other words, the fireplace body and / or its outer surrounding walls can be partially, preferably predominantly, made of concrete. This allows, among other things, a particularly cost-effective design of the fireplace. Furthermore, it can also increase the risk of fire and improve insulation.

[0029] Advantageously, the projection of the discharge opening in the longitudinal direction and / or in the discharge direction is surrounded by the projection of the fireplace body in the longitudinal direction and / or in the discharge direction. In other words, when viewing the fireplace in the longitudinal direction and / or in the discharge direction, the discharge opening can be located completely within the (projected) perimeter of the fireplace body. This allows for a particularly compact and simple filling of the fireplace with solid fuel.

[0030] Alternatively or additionally, preferably, the inlet opening can be designed such that the projection of the inlet opening in the longitudinal direction and / or in the discharge direction is surrounded by the projection of the fireplace body in the longitudinal direction and / or in the discharge direction. In other words, the inlet opening can also extend completely within and / or to the outer boundary of a fireplace body. This also allows for a particularly compact fireplace design.

[0031] Particularly preferred is the arrangement of both the projection of the outlet opening and the projection of the inlet opening within the projection of the fireplace body in order to further increase the compactness of the filling system.

[0032] In an alternative or additionally preferred embodiment of the combustion chamber, the discharge opening is arranged longitudinally or in the direction of travel above the storage container and / or the combustion chamber, and / or the storage container is arranged longitudinally or in the direction of travel above the combustion chamber. "Above," particularly in the longitudinal or direction of travel, means that in an installed state, at least a certain distance is provided opposite to the direction of the vector of gravitational acceleration in the longitudinal or direction of travel, so that gravity assists and / or exclusively causes the transport of solid fuels from the discharge opening into the storage container and / or the combustion chamber or fuel storage container into the combustion chamber.In other words, by arranging it "above", it is possible to utilize gravity for filling the storage container and / or the combustion chamber.

[0033] Advantageously, the fireplace or storage container has a connection fitting, wherein the filling fitting is attached to the combustion chamber or storage container, particularly directly or indirectly, via the connection fitting, and wherein the filling fitting advantageously projects into the connection fitting, and / or wherein a dust seal may be provided between the filling fitting and the connection fitting. The connection fitting of the fireplace, combustion chamber, or storage container serves to connect the filling fitting or the outlet opening of the filling fitting to the connection fitting. In other words, the connection fitting of the fireplace, combustion chamber, and / or storage container is therefore a fitting for docking the filling fitting. To achieve particularly secure installation of the filling fitting, the filling fitting should extend at least partially into the connection fitting.To achieve a particularly high sealing effect, a seal, especially a dust seal, should be provided between the filling nozzle and the connection nozzle. This seal can advantageously be made of rubber and / or a metallic material, especially copper.

[0034] Another aspect of the invention may relate to a fireplace system. Such a fireplace system comprises, in particular, a fireplace, advantageously as described above and / or below, and a mounting frame, wherein the mounting frame is designed such that it surrounds or can surround the insertion opening and / or wherein the filling opening is supported or can be supported on the mounting frame and / or is inserted or can be inserted into the mounting frame. The mounting frame serves, in particular, to be or be embedded in a wall of a building and / or a side wall of the fireplace body, in order, for example, to provide a final boundary for the masonry or the opening in the wall. The mounting frame or its cross-sectional area is advantageously designed such that the insertion opening of the filling nozzle can be inserted into it.It is particularly advantageous if the mounting frame is dimensioned and designed such that the part of the filling nozzle body that forms the filling opening can rest against, or is resting on, the mounting frame. In other words, this means that the filling opening is supported by the mounting frame when installed. Advantageously, the mounting frame, together with the cover, can incorporate a click or snap-in system to allow the cover to lock into place and close the opening of the mounting frame. Advantageously, the mounting frame is made of metal to reduce the risk of fire.

[0035] Further advantages and features of the present invention will become apparent from the following description with reference to the figures. The figures show: Figure 1 is a side view of a fireplace; Figure 2 is a filling spout; Figure 3 is a detail view of a chute; and Figure 4 is a top view of a chute.

[0036] In Figure 1A fireplace 200 is shown, which has a filling nozzle 1. The fireplace 200 extends in the longitudinal direction L, and its outer boundaries perpendicular to the longitudinal direction L are defined by the fireplace body 220. The filling nozzle 1 and the storage container 240 are located within the fireplace body 220. The filling nozzle 1 has a filling opening 12 and an outlet opening 14, with the channel 16 extending between these two openings. The filling opening 12, the outlet opening 14, and the channel 16 of the filling nozzle 1 are all formed by the body 10 of the filling nozzle 1. The filling opening 12 extends in the filling direction ER, and the outlet opening 14 extends in the outlet direction AR. The outlet direction AR is parallel to the longitudinal direction L.Within the fireplace body 220, an exhaust gas pipe 212 and an air supply pipe 214 are formed, which are connected to the combustion chamber 210 of the fireplace 220. The in the . Figure 1 The illustrated fireplace 200 is therefore a room air-independent fireplace. The storage container 240, the discharge opening 14, and the filling opening 12 are arranged above the combustion chamber 210 of the fireplace 200 in the AR direction and in the longitudinal direction L. Advantageously, the storage container 240 can also be positioned 10 to 20 cm higher than the lower edge of the combustion chamber 210.

[0037] In Figure 2Figure 1 shows a detailed view of a fireplace 200 in the area of ​​the filling port 1. The filling port 1 has a body 10, which forms a filling opening 12 and an outlet opening 14. The outlet opening 14 extends in the discharge direction AR and is located within a connection port 260 of the fireplace 200. Between the filling opening 12 and the outlet opening 14, the filling port 1 has a suction ring 30, which has suction openings 34 that allow dust to be drawn from the duct 16 into the suction ring 30. For connecting a vacuum cleaner, the suction ring 30 has a suction port 32, which is routed through an outer wall of the fireplace body 220. The filling opening 12 is surrounded by a mounting frame 300, the filling opening 12 being covered by a cover unit 110. This cover unit 110 extends partially into the mounting frame 300 in the filling direction ER.The filling opening 12 has a cross-sectional area QE and the outlet opening 14 a cross-sectional area QA. In the . Figure 2 Furthermore, the transverse axis Q is also shown, which is perpendicular to the longitudinal direction L and the execution direction AR, as well as perpendicular to the filling direction ER, which is also perpendicular to the longitudinal direction L and the execution direction AR.

[0038] In Figure 3A detailed view of a chute 20 is shown, which is hinged about the transverse axis Q relative to a body 10 (not shown). The chute 20 has a main body 22, which is flat and includes a foreign object trap, in particular in the form of a perforated sheet. The main body 22 of the chute 20 extends in the main direction HR. Two side plates 24 are arranged laterally on the main body 22, which are hinged about the main direction HR relative to the main body 22. The support 26 of the chute 20 is also hinged about the transverse axis Q relative to the main body 22. This support 26 serves to support a transport device during a pouring process, thus relieving the operator.

[0039] In Figure 4 is a view of a chute 20 in longitudinal direction L shown, wherein the Figure 4 the foreign object trap, in the form of a perforated metal sheet, can be removed. The one in the Figure 4The embodiment shown is in principle similar to the one described in the Figure 3 suitable for the illustrated embodiment. Reference symbol list:

[0040] 1- Filling nozzle 10- Body 12- Filling opening 14- Outlet opening 16- Channel 20- Chute 22- Main body 24- Side panel 26- Support 30- Suction ring 32- Suction connection 34- Intake opening 100- Filling nozzle system 110- Cover unit 200- Fireplace 210- Combustion chamber 212- Flue gas duct 214- Air supply duct 220- Fireplace body 240- Storage container 260- Connection nozzle 300- Mounting frame AR- Outlet direction ER- Filling direction HR- Main direction L- Longitudinal direction Q- Transverse axis QA- Cross-sectional area of ​​the outlet opening QE- Cross-sectional area of ​​the filling opening

Claims

1. Filling spout (1) for a solid fuel fireplace, comprising a body (10), wherein the body (10) has a filling opening (12) and a discharge opening (14), wherein a duct (16) is formed between the filling opening (12) and the discharge opening (14), in particular through the body (10), wherein solid fuel, in particular pellets, can be fed or are arranged through the duct (16) from the filling opening (12) to the discharge opening (14), wherein the filling opening (12) extends in a filling direction (ER), wherein the discharge opening (14) extends in a discharge direction (AR), wherein the filling direction (ER) and the discharge direction (AR) are advantageously transverse, in particular perpendicular, to one another, wherein the filling spout (1) has a chute (20) which can be folded, in particular about a transverse axis (Q), wherein the chute (20) has a main body (22), in particular a planar main body (22), wherein the main body (22) extends in a main direction (HR), characterized in that the chute (20) can be folded out of the filling opening (12), and in that the chute (20) has two foldable side plates (24), which are in particular foldable about the main direction (HR).

2. Filling spout (1) according to claim 1, wherein the chute (20), in particular the main body (22), has a foreign body trap, in particular in the form of a perforated plate.

3. Filling spout (1) according to any one of claims 1 to 2, wherein the chute (20) has a support (26), wherein the support (26) is foldable, in particular about the transverse axis (Q), to the main body (22).

4. Filling spout (1) according to any one of the preceding claims, wherein the filling spout (1) has a suction ring (30), wherein the suction ring has a suction connection for directly or indirectly connecting a vacuum cleaner and / or suction openings for sucking dust out of the duct, wherein the suction ring (30) in particular surrounds the conductive cross-section of the duct (16) and / or is guided in a ring-like manner around the conductive cross-section of the duct (16).

5. Filling spout (1) according to any one of the preceding claims, wherein the body (10) is a sheet metal part or a sheet metal construction and / or is formed from sheet metal.

6. Filling spout system (100) comprising a filling spout (1) according to any one of the preceding claims and a cover unit (110), wherein the cover unit (110) covers the filling opening (12) of the filling spout (1) in a covering state, so that no solid fuel can be introduced into the filling opening (12).

7. Filling spout system (100) according to claim 6, wherein the cover unit (110) is a door, wherein advantageously the door is attached to the body (10) of the filling spout (1), in particular foldable about the transverse axis (Q) or the discharge direction (AR).

8. Fireplace (200) comprising a combustion chamber (210), a fireplace body (220), which extends in particular in a longitudinal direction (L), and a filling spout (1) according to any one of claims 1 to 5 and / or a filling spout system (100) according to claim 6 or 7.

9. Fireplace (200) according to claim 8, wherein the fireplace (200) has a storage container (240), wherein the storage container (240) is directly or indirectly connected to the discharge opening (14) and / or the combustion chamber (210), wherein the storage container (240) serves to store solid fuel, wherein the storage container (240) is arranged in particular within the body (10) and / or the fireplace body (220).

10. Fireplace (200) according to any one of the preceding claims 8 or 9, wherein the fireplace body (220) is a concrete body.

11. Fireplace (200) according to any one of the preceding claims 8 to 10, wherein the projection of the discharge opening (14) in the longitudinal direction (L) and / or in the discharge direction (AR) is surrounded by the projection of the fireplace body (220) in the longitudinal direction (L) and / or in the discharge direction (AR).

12. Fireplace (200) according to any one of the preceding claims 8 to 11, wherein the discharge opening (14) is arranged above the storage container (240) and / or the combustion chamber (210) in the longitudinal direction (L) or in the discharge direction (AR), and / or wherein the storage container (240) is arranged above the combustion chamber (210) in the longitudinal direction (L) or in the discharge direction (AR).

13. Fireplace system comprising a fireplace according to any one of claims 8 to 12 and a mounting frame (300), wherein the mounting frame (300) is designed such that it surrounds or can surround the filling opening (12) and / or wherein the filling opening (12) is supported or can be supported on the mounting frame (300).