6results about "Solid bar grate" patented technology

This invention provides a small-scale incinerator for the disposal of dead trees and branches, and for the suppression of fire and pest infestations. [Solution] A small wood incinerator having a cylindrical side wall with an air intake 10 at the bottom, configured such that air flowing in from the air intake rises along the side of the side wall to air-cool the furnace wall, and further having a stone plate 3 as a heat-resistant plate, the air diffracts inward at the top of the small wood incinerator to supply oxygen to the top of the stone plate, and the incineration radiant heat is reflected by the side wall, so that a high-temperature furnace core is formed on the top of the stone plate, thereby creating a structure that promotes rapid short-term heat convection.

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 gasification furnace bar is of a square frame furnace bar structure formed by welding and splicing square pipes, round steel and strip-shaped steel plates, when the square pipes are spliced, two diagonal lines of square pipe openings are in a horizontal and vertical cross-shaped prismatic state, the square pipes are welded and spliced into a right-angle comb tooth shape, the round steel is welded between the comb teeth to adjust the distance between the furnace bars, and the strip-shaped steel plates are welded and spliced into the square frame furnace bar structure. A comb tooth end is welded and spliced into a square frame structure through strip-shaped steel plates to serve as a grate main body, a traditional grate is prone to being blocked by ash and charcoal fire fragments, air inlet and oxygen supply in a hearth are affected, air inlet is insufficient, combustion is incomplete, and fuel is wasted, a square pipe pipeline supplies oxygen through gasification holes, the charcoal fire fragments can be rapidly combusted, and the temperature of the hearth is increased; under the condition that an ash pool of the hearth is blocked, oxygen is directly and evenly supplied to a specific area in the hearth from the square pipe, the supplied oxygen can be conveyed to the position below a chimney smoke outlet at the topmost end of the hearth, oxygen is supplied for the last time for unburned firewood smoke which is about to be discharged from the hearth for combustion, and complete combustion is guaranteed.

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.

Various implementations include a combustor system including an inner wall, a fuel grate, an ash grinder, an igniter, and a fan. The inner wall defines a combustion chamber and has a longitudinal axis and first and second ends. The inner wall defines primary and secondary air inlets. The primary air inlets are defined closer than the secondary air inlets to the first end. The fuel grate is disposed within the combustion chamber between the primary and secondary air inlets and is configured to support fuel disposed within the combustion chamber. The ash grinder is disposed between the fuel grate and the secondary air inlets and is rotatable about the longitudinal axis relative to the fuel grate. The igniter provides energy to the combustion chamber. The fan is configured to cause air to flow from the primary and secondary air inlets through the second end of the combustion chamber.

The present invention relates to an air supply device (65) for a room heater (1) comprising an air inlet duct (70) configured to open outside the room, the air inlet duct comprising a radial wall (75) defining an inlet volume (80), and an axial wall (85) extending between the radial wall and closing the inlet volume, and a direct air duct (95) configured to supply air to a fireplace, the direct air duct passing through the axial wall and opening into the air inlet duct. The axial wall has at least one opening (90) configured to supply air to the room. A damper (105) is mounted around the direct air duct and is movable between a closed position, in which the damper closes at least one opening, and an open position, in which air can flow through at least one opening.