61results 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 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 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).

To provide equipment capable of thermochemical conversion of various types and qualities of fuel.SOLUTION: Equipment for thermochemical conversion of solid fuel comprises a stage grate 1 having lows of grate elements 3, 4, 5. A counter-current gasification furnace has a gasification furnace pipe 22 forming a gasification furnace chamber and arranged substantially vertically, and the counter-current gasification furnace is arranged in an area above the stage grate 1. The equipment has a device for removing ash in a lower end area, and a device 27 for supplying a gaseous oxidizing medium is arranged in a lower area of the stage grate 1. The stage grate 1 has the lows of movable and immovable grate elements 3, 4, 5, and two grate sections 1a, 1b. The grate sections are arranged in an approximately A-shape, particularly preferably symmetrically in a lower end area thereof in a central area below the gasification furnace chamber. The grate sections 1a, 1b, on their upper ends, have an upper end low of movable grate elements 3, and an immovable gable 2 is arranged in the central area thereabove.SELECTED DRAWING: Figure 1

The invention relates to a grate bar with a base body made of a first material and a grate bar reinforcement made of a material different from the first material. The base body has a running surface with a longitudinal extent, a top and a bottom, and a center line extending longitudinally between the top and bottom, passing through the center of mass of the running surface. According to the invention, the grate bar reinforcement is arranged below the center line and connected to the base body.

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.

In accordance with one or more embodiments herein, an arrangement 300 for biochar pyrolysis is provided. The arrangement 300 comprises: an incinerator plant 100, comprising a furnace 120, where furnace fuel introduced through a furnace fuel input 130 is burned, arranged inside an incinerator chamber 110, and a heat converter 150, used for storing the heat generated by burning the furnace fuel; and a biochar pyrolysis reactor chamber 200, arranged horizontally and at least partly inside the incinerator chamber 110, above the furnace 120, so that it is evenly heated by heat rising from the furnace 120. Biochar base material is transported horizontally through the biochar pyrolysis reactor chamber 200 in such a way that the biochar base material during said transport is evenly heated by the heat rising from the furnace 120 when the furnace fuel is burned while being transported through the furnace 120, thereby causing pyrolysis of the biochar base material, and outputting biochar through a biochar output 220, and syngas through a syngas output 230.

The invention relates to a grate block (10) for a combustion grate. The grate block (10) comprises a block body (12) which has an upper wall (14) forming a support surface (16) along which the material to be combusted is conveyed, and a front wall (20) having a lower support edge (23), which support edge (23) is designed to come into contact with the support surface of a grate block adjacent in the thrust direction S, wherein the upper wall (14) has an air supply opening (35) formed by an air supply channel (38). The air supply opening (35) is at least partially surrounded by a thickening (50) projecting from the support surface (16), which forms a protective channel (57) extending the air supply channel (38) and is designed to prevent liquid from flowing into the air supply opening (35).

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 efficient and stable auxiliary combustion system of the garbage incinerator comprises a hearth (1), a fire grate (2) which extends downwards in a step shape is arranged at the bottom of the hearth (1), a plurality of ignition combustors (31) are arranged on the side wall of the hearth (1) in the distribution direction of the fire grate (2), and a plurality of combustion-supporting combustors (32) are arranged on the front wall (11) of the hearth (1). A plurality of first auxiliary air pipes (41) with the air outlet direction facing the fire grate (2) are arranged on a rear wall (12) of the hearth (1), a plurality of guide plates (42) which are staggered up and down are arranged in the hearth (1) in the circumferential direction, and second auxiliary air pipes (43) which are attached to the inner wall of the hearth (1) and have the air outlet direction facing the guide plates (42) are arranged below the guide plates (42). And a plurality of third auxiliary air pipes (44) which are staggered up and down are arranged above the guide plate (42) in the circumferential direction. The garbage drying device has the characteristics of quickly drying garbage and improving the combustion efficiency.

To provide a fire grate capable of suppressing an occurrence of a local abnormal combustion by uniformly supplying combustion air to an object to be combusted from a fire bed where the fire grates are arranged.SOLUTION: A fire grate has a supported basal end side, has a lower surface at a tip side abutting a back surface of the fire grate at a downstream side in a conveying direction of an object to be combusted, is arranged in such a way that the back surface abuts the lower surface at the tip side of the fire grate at an upstream side in the conveying direction, and catches and conveys the object to be combusted by the back surface through relative movement with the fire grate at the upstream side or the downstream side in the conveying direction so as to form a hearth of a stoker type incinerator. A reference surface 13R that maintains an abutting state with a lower surface 17 of the fire grate at the upstream side in the relative movement is formed on a back surface 13. A recess 13D that forms an air inlet G supplying combustion air with the lower surface of the fire grate at the upstream side is formed on the reference surface so as to be continuous in a direction along the conveying direction. The recess includes a displacement region where a formation position of the air inlet is displaced along with the relative movement in a widthwise direction intersecting with the conveying direction.SELECTED DRAWING: Figure 6

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 fracture-reinforced combustion step grate with grate steps consists of grate bars or grate blocks (2) braced together. These have reinforcing ribs (9) or tabs projecting downwards along their underside. Bores lead through these ribs (9), or there are tabs with bores through which the tensioning screws (7) pass, so that the grate bars or grate blocks (2) can be braced together. To provide fracture-reinforcement, reinforcing parts (3) made of sheet metal or cast iron with bores at both ends are attached to at least one inner side of a rib (9) or tab and are braced to the rib (9) or tab of an adjacent grate bar or grate block (2) by means of screw connections. Alternatively, the reinforcing parts (3) made of sheet metal or cast iron can also be welded to the inner sides of the ribs (9) or tabs.

The present invention discloses a waste incineration grate furnace, which includes an incineration grate, a front arch wall, a rear arch wall and a flue. Among them, the incineration grate includes a drying section grate, a combustion section grate and an afterburning section grate that are all arranged in an inclined shape with the front high and the rear low and are arranged in sequence from front to back. The rear end of the drying section grate is higher than the front end of the combustion section grate, and the rear end of the combustion section grate is higher than the front end of the afterburning section grate; the front arch wall is located above the drying section grate and completely covers the drying section grate in the vertical projection; the rear arch wall is arranged in an inclined shape with the front high and the rear low, and the included angle between the rear arch wall and the horizontal plane is 39°-43°. The rear arch wall is located above the afterburning section grate and the combustion section grate, and the rear arch wall completely covers the afterburning section grate and covers 1 / 3 to 1 / 2 of the area of the combustion section grate in the vertical projection. The present invention has a high solid waste co-disposal rate, reduced pollutant emissions in the flue gas, and improved energy utilization efficiency.