35results about "Inclined grate" patented technology

The plate grate elements (1, 2) have a top wall (12), a bottom wall (13), a front end (14), and a rear end (15). The front end has a lower inwardly curved wall portion (16) adapted to maintain a predetermined gap with the rear tip edge of the corresponding grate element. The internal cooling fluid chamber (18) includes an internal front cooling fluid passage (19) extending along the front end (14) of the grate element. The grate element has an outwardly curved front wall (22) having a nominal wall thickness varying by less than ±35%, and a lower inwardly curved wall portion extending from the top wall of the grate element to the front end, and the outwardly curved front wall forming the front tip edge (23) of the front end at the junction of the outwardly curved front wall and the lower inwardly curved wall portion.

Method for burning solid fuel on a stepped grate (20) of a mobile solid fuel combustion plant (2), which has several steps arranged between side walls (42), each consisting of an intermediate plate (38) and a pusher plate (36) movable relative to the side walls (42) and the intermediate plate (38), in which the pusher plates (36) push burning solid fuel in the direction of the steps (56) from one step to the next lower step by a relative movement to the respective adjacent intermediate plates (38), characterized in that the solid fuel is burned on the pusher plates (36) and, after the end of a burning period, is conveyed during a pusher period to the next lower pusher plate (36) and burns there during the following burning period.

An apparatus for combustion of solid fuel material can be configured to utilize one or more oxidant injectors positioned to inject a high oxygen content oxidant into at least one zone of a combustion chamber below a grate on which the solid fuel material is positioned to facilitate improved combustion of the material. In some embodiments, the injected oxidant can have an oxygen content of at least 80 mole percent, which can supplement other oxidant passed into the combustion chamber that has a lower oxygen concentration. The oxidant injector(s) can be selectively utilized to facilitate improved combustion startup and to facilitate combustion of low quality or high moisture solid fuel material. In some embodiments, the oxidant injector(s) can be positioned below one or more burners and be positioned upstream, downstream and / or coincident to the burner(s) and also below the grate and the burner(s) in the combustion chamber.

To provide a combustion device comprising a mechanism for preventing blockage of air ports of fire grates, and an incinerator comprising the combustion device.SOLUTION: A combustion device comprises a plurality of movable fire grates, a driving part having the function of rocking the movable fire grates in a front-rear direction and rocking front ends of the movable fire grates in an up-down direction, and an actuator for operating the driving part. The driving part may operate so as to lift the front ends upward to incline the movable fire grates when moving the movable fire grates rearward.SELECTED DRAWING: Figure 4

The invention relates to a grate block (10) for a grate of an incinerator. The grate block (10) comprises a block body (12) having an upper wall (14) forming a support surface (16) along which incineration material is to be conveyed, and a front wall (20) having a support edge (23) designated for contact with the support surface of an adjacent grate block in a pushing direction S, wherein the upper wall (14) has an air supply opening (35) constituted by an air supply channel (38). The air supply opening (35) is at least partially surrounded by a thickening (50) protruding from the support surface (16), which forms a protection channel (57) extending the air supply channel (38) and is designated for preventing liquid from flowing into the air supply opening (35).

The invention relates to a method for combusting solid fuels in an incineration plant (1), wherein the solid fuel is combusted on a combustion surface (2), wherein the combustion surface (2) is cooled with a coolant, characterized in that the heat energy obtained from the combustion surface (2) is used to operate a heat energy conversion unit (5), which is connected to a heat energy distribution network (6).

The present application relates to a grate line bordering element (11) for a combustion grate for burning waste, comprising a channel element (15) and a channel covering (17) for covering the channel element (15) comprising at least one covering element (21, 23) and one termination element (25) with a locking device; wherein the termination element (25) has a support surface which points away from the channel element (15) and a first engaging element which is oriented towards the covering element (21, 23); the covering element (21, 23) has a support surface which points away from the channel element (15), a retaining element which is oriented towards the channel element (15), a second engaging element which is oriented towards the termination element (25) and is configured to receive the first engaging element, and a cut-out which is oriented towards the termination element (25) for receiving the locking device of the closure element (25); and wherein the locking device is configured in such a way that it locks the termination element (25) releasably in the channel element (15).

This utility model patent discloses a waste incinerator, including a waste feed hopper, a combustion chamber, and a slag pit. The combustion chamber is equipped with multiple fixed grates and sliding grate assemblies. The fixed grates are stepped, and the sliding grate assembly includes a base connecting two adjacent fixed grates, and a sliding grate that moves back and forth on the base via a sliding push rod. This loosens and turns the waste, pushing it to the next level of fixed grate for efficient waste incineration. This utility model patent has advantages such as simple structure, low cost, large waste processing capacity, and high combustion efficiency.

A cooled grate block as part of a grate for a system for thermally treating waste, including: a block body in the form of a cast part having an outer supporting face for the waste to be treated; a flat cavity situated directly below the supporting face, for receiving a cooling fluid; a fluid feed line and a fluid discharge line, which are connected to the cavity; at least one deflection element, which is arranged in the cavity to direct a cooling fluid within the cavity from the fluid feed line to the fluid discharge line; and a valve element situated in the end region of the cavity, for distributing the cooling fluid fed into the cavity through the fluid feed line.

A cooled grate block (1) as part of a grate for a plant for the thermal treatment of waste, comprising: a block body (3) designed as a casting with an outer support surface (7) for the waste to be treated, a planar cavity (50) arranged directly below the support surface (7) for receiving a cooling fluid, a fluid supply line (52) and a fluid discharge line (54) which are connected to the cavity (50), at least one deflection element (66) arranged in the cavity (50) to direct a cooling fluid in the cavity (50) from the fluid supply line (52) to the fluid discharge line (54), and a distribution element (74) arranged in the end face (11) of the cavity (50) for distributing the cooling fluid fed into the cavity (50) through the fluid supply line (52), characterized in that the planar cavity (50) has a surface extending from the bottom (51) to upper wall (5) has a partition wall (60) extending to the upper wall,which extends from the front wall (15) towards the rear wall (68) of the cavity (50), forms a passage (64) in the area of ​​the rear wall (68) and divides the cavity (50) into two fluid-conducting compartments (62).

The invention relates to a method for operating a shear grate (100) with several grate bar rows (2), each having a grate bar support (5) on which several grate bars (3) are mounted, wherein the grate bars (3) of adjacent grate bar rows (2) overlap like roof tiles and surfaces (7) of the grate bars (3) have a non-planar surface contour (13), wherein a first drive movement (A1) is or can be introduced into driveable grate bar supports (5a) such that alternating different drive positions (S) result, in which the grate bars (3) are adjusted differently on the respective driveable grate bar supports (5a) and also on non-driven grate bar supports (5b), for transporting and / or stoking fuel (B) located on the shear grate surface (O).According to the invention, at least some of the driveable grate bar supports (5a) are distributed across at least two grate bar row units (E; E1, E2) in such a way that the first drive movement (A1) can be initiated independently of one another into the driveable grate bar supports (5a) of different grate bar row units (E; E1, E2), wherein the driveable grate bar supports (5a) that are assigned to the same grate bar row unit (E; E1, E2) are always driven synchronously, wherein different drive positions (S) are set alternately depending on a set movement mode (M) by initiating the first drive movement (A1) into the driveable grate bar supports (5a) of at least one of the at least two grate bar row units (E; E1, E2).

To provide stoker support structure which adapts to a three-dimensional complicated load field and furthermore can be reduced in the weight of the structure.SOLUTION: Stoker support structure is provided, supporting on a plurality of pedestals, a stoker having: a stoker main body having a fire grate combusting a combustion object while horizontally transporting it; and a drive portion which extends in a transportation direction of the combustion-object, and connected at one end of the drive portion to the fire grate, the stoker support structure comprises: a first frame extending in a horizontal direction, and supporting the stoker main body; a columnar support extending upward from a lower end arranged on the pedestal, and supporting the first frame; a second frame connected to the first frame in the transportation direction, and having a reaction force receiving portion supporting the other ends of a plurality of drive portions which are arranged in parallel in a width direction intersecting with the transportation direction; and a plurality of width-direction oblique materials extending while being inclined in such a manner that intervals between the oblique materials expand in a width direction as progressing upward from the lower end which is arranged on the pedestal.SELECTED DRAWING: Figure 2

The application provides a high-efficiency circulating convection incinerator, aiming at solving the problems of low combustion efficiency, low heat utilization rate and incomplete treatment of high-humidity garbage of traditional incinerators. The incinerator comprises an incinerator body, a feeding hopper, a grate mechanism, an inclined plate, a rotary incinerator, a blower, a wind guide plate and other components. The lower surface of the inclined plate is provided with a plurality of staggered air guide vanes, and a vortex generator is arranged on the surface, which can significantly improve the turbulence degree and mixing effect of the airflow, optimize the distribution of hot air in the furnace body, and improve the combustion efficiency. The combination of the rotary incinerator and the blower, guided by the wind guide plate, forms an effective airflow path, ensuring uniform distribution of air and heat. Through these innovative designs, the application realizes efficient combustion and heat energy utilization of high-humidity garbage, improves the uniformity and completeness of combustion, reduces harmful gas emissions, and has significant environmental and economic benefits.

A grate line bordering element for a combustion grate for burning waste, including a channel element and a channel covering for covering the element including at least one covering element and one termination element with a locking device; wherein the termination element has a support surface which points away from the channel element and a first engaging element which is oriented towards the covering element; the covering element has a support surface which points away from the channel element, a retaining element which is oriented towards the channel element, a second engaging element which is oriented towards the termination element and is configured to receive the first engaging element, and a cut-out which is oriented towards the termination element for receiving the locking device of the closure element; and wherein the locking device is configured in such a way that it locks the termination element releasably in the channel element.

The utility model discloses a can realize the furnace grate device of subsection regulation and independent air distribution, its characterized in that: the furnace grate device includes three single -span furnace grate (1), and the adjacent single -span furnace grate (1) between is provided with intermediate wall board (2), and every single -span furnace grate (1) all is provided with four ladder type furnace grate frame (3), and simultaneously is provided with four ash hopper (4) with the ladder one -to -one of furnace grate frame (3) under single -span furnace grate (1), in same single -span furnace grate (1), all ash hopper (4) are connected with same tapering wind box (6) through an air inlet channel (5), and still be provided with electric air control baffle (11) on air inlet channel (5), the top plate (7) of tapering wind box (6) is inclined distribution, and the end of its near air inlet (8) is relatively higher, and the inclination angle of top plate (7) is 2 5 DEG.

A grate bar front section (10) for mounting on a grate bar back section (20) in order to form a grate bar (1) for example for a waste incineration plant, wherein the grate bar front section (10) has a refractory mineral material and a top (14), a bottom (12), a front (16), two narrow sides, and a back (18) as well as a grate bar longitudinal axis (2) extending parallel to the top (14) through the front (16) and the back (18), characterized in that - a recess (70) extends from the underside (12) towards the top (14), - the recess (70) has at least one contact surface (71) for introducing a force acting in the direction of the rear (18) and / or the front (16) into the grate bar front section (10), and - at least one channel (32) with a channel longitudinal axis (33) connects the rear (18) and / or the front (16) and / or at least one side surface 15 with the recess (70), wherein the channel (32) can accommodate a bolt (30) or other connecting element for fastening the front section (10) to the rear section (20) and / or to a front plate (160).

The plate-formed grate element (1, 2) has a top wall (12), a bottom wall (13), a front end (14) and a back end (15). The front end has a lower inwardly curved wall portion (16) adapted to maintain a predetermined clearance with a back tip edge of a corresponding grate element. An internal cooling fluid chamber (18) includes an internal front cooling fluid channel (19) extending along the front end (14) of the grate element. The grate element has an outwardly curved front wall (22) having a nominal wall thickness varying by less than ±35 percent and extending from the top wall of the grate element to the lower inwardly curved wall portion of the front end, and a front tip edge (23) of the front end is formed by the outwardly curved front wall at its connection with the lower inwardly curved wall portion.

Cooled grate block (1) as part of a grate for a plant for the thermal treatment of waste, comprising: a block body (3) designed as a casting with an outer support surface (7) for the waste to be treated, a planar cavity (50) arranged directly below the support surface (7) for receiving a cooling fluid, a fluid supply line (52) and a fluid discharge line (54) which are connected to the cavity (50), at least one deflection element (66) arranged in the cavity (50) to direct a cooling fluid in the cavity (50) from the fluid supply line (52) to the fluid discharge line (54), and a distribution element (74) arranged in the end face region (11) of the cavity (50) for distributing the cooling fluid fed into the cavity (50) through the fluid supply line (52).

. Combustion grate (10) for an incinerator of a waste incineration plant, wherein the combustion grate (10) has a first edge region and a second edge region opposite the first edge region, wherein the first edge region and the second edge region adjoin the combustion grate (10) laterally and extend in a direction parallel to a conveying direction (12) of the combustion grate, a series of grate blocks extending between the first edge region and the second edge region, wherein the combustion grate comprises a clamping device (30) for the series (16) of grate blocks (18) arranged in the combustion grate (10), wherein the clamping device (30) extends in a longitudinal direction and is designed to maintain the alignment of the series of grate blocks, characterized in thatthat the clamping device comprises a cable (70) with a first cable end region (70a) and a second cable end region (70b) opposite the first cable end region (70a), a first connecting means (40) for connecting the first cable end region (70a) to a side wall (14a) of the first end region, and a second connecting means (50) for connecting the second cable end region (70b) to a side wall (14b) of the second end region.

The present invention relates to a grate track boundary element (11) for a combustion grate for burning waste, comprising a flow path element (15) and a flow path cover (17) for covering the flow path element (15), the flow path cover (17) including at least one cover element (21, 23) and an end connection element (25) having a lock, the end connection element (25) having a support surface facing away from the flow path element (15) and a first engagement element oriented towards the cover element (21, 23), the cover element (21, 23) being adapted to lock the flow path element (15) The present invention relates to a grate track boundary element (11) having a support surface facing away from the element (15), a retaining element oriented towards the flow path element (15), a second engaging element oriented towards the end connection element (25) formed to receive a first engaging element, and a recess oriented towards the end connection element (25) for receiving a locking device of the end connection element (25), the locking device being formed to releasably lock the end connection element (25) in the flow path element (15).

The invention relates to a grate bar (100) for combustion systems, comprising a substantially closed surface facing the combustion side, a rear support region which is designed to be supported on a grate support, a front nose region which runs between the surface and the front edge and which comprises a support region formed on the lower face, and a grate cooling tube system (102) which is integrated in the grate bar (100) for conducting a cooling liquid, wherein the grate cooling tube system (102) has an inlet distributor (104) for supplying the cooling liquid, an outlet collector (114) for discharging the cooling liquid, and multiple cooling tubes (108', 108", 112', 112"), each of which is individually connected to the inlet distributor (104) and the outlet collector (114) in a fluid-tight manner.

A prefabricated composite blowing grate plate module (10), a blowing conveying base plate (30), and a grate-type pre-combustion furnace. The blowing grate plate module (10) consists of a housing (101), a wear-resistant castable material (102), and at least two gas flow nozzles (103) with upwardly inclined outlets, wherein ejection openings of the gas flow nozzles (103) are all located on a material receiving surface of the blowing grate plate module (10), and the material receiving surface is the upper surface of the blowing grate plate module (10); and in a material flow direction, the included angle γ1 between the ejection direction of the ejection opening of the gas flow nozzle (103) located on the rearmost side and the material receiving surface of the blowing grate plate module (10) is 10°-35°, and the included angle between the ejection direction of the ejection opening of each of the remaining gas flow nozzles (103) and the material receiving surface of the blowing grate plate module (10) is equal to γ1 or gradually decreases, such that a gas flow entering the gas flow nozzles (103) is obliquely ejected upwards along the material receiving surface, thus driving materials to be ejected upwards and form a parabolic path so as to rise and move forwards. The device can reduce the problems of incomplete combustion, operating-situation fluctuation, skinning and blockages, NOx exceeding the standard, etc., caused by using fossil fuels in a firing system, and can achieve the aims of increasing the proportion of alternative fuel usage, stabilizing a thermal regime of a kiln, and enabling ultra-low emissions of the system.

The invention relates to a method for combusting solid fuels in an incineration plant (1), wherein the solid fuel is combusted on a combustion surface (2), wherein the combustion surface (2) is cooled with a coolant, characterized in that the heat energy obtained from the combustion surface (2) is used to operate a heat energy conversion unit (5), which is connected to a heat energy distribution network (6).

Fire grate (2a, 2b, 2c) for a waste incineration plant, comprising a frame (5) with side walls (4a, 4b, 4c, 4d) and torsion shafts (6a, 6b, 6c, 6d) rotatably mounted on the frame (5), which at least partially cover an inner area (5a) of the frame (5), wherein the torsion shafts (6a, 6b, 6c, 6d) are operatively connected to a grate mechanism (8) which is configured to twist the torsion shafts (6a, 6b, 6c, 6d), wherein the grate mechanism (8) is arranged on at least one of the side walls (4b, 4d) of the frame (5) and is located at least partially, preferably completely, outside the inner area (5a) of the frame (5), characterized by the fact that at least one of the side walls (4a, 4b, 4c, 4d) of the frame (5) is double-walled, so that an interior space (13a, 13b, 13c, 13d) is formed in the at least one side wall (4a, 4b, 4c, 4d), and the frame (5) has inlet openings (10a, 10b) and outlet openings (10c, 10d) in the at least one double-walled side wall (4a, 4b, 4c, 4d), in particular at the end faces (11a, 11b, 11c, 11d), so that an airflow (12) can flow through the respective interior space (13a, 13b, 13c, 13d) in the at least one double-walled side wall (4a, 4b, 4c, 4d).