74results about "Travelling grate" patented technology

The utility model discloses a high-wind-resistance reverse-pushing type garbage incinerator fire grate segment and a garbage incinerator. The high-wind-resistance reverse-pushing type garbage incinerator fire grate segment comprises a movable fire grate segment, the movable fire grate segment comprises a movable fire grate body, a movable fire grate protrusion arranged at one end of the front face of the movable fire grate body, a movable fire grate air groove formed in the back face of the movable fire grate body, a movable fire grate protruding block arranged at the head of the back face of the movable fire grate body, and a movable fire grate tail hook arranged on the back face of the movable fire grate body and oppositely arranged at the tail end. The movable fire grate reinforcing rib plates are arranged on the two sides of the back face of the movable fire grate body, and the movable fire grate ventilation holes are formed in the side portion of the movable fire grate body. According to the high-wind-resistance reverse-pushing type garbage incinerator fire grate segment and the garbage incinerator, the movable fire grate air grooves of the movable fire grate segment are formed in the side portion, and the ventilation holes of the fire grate segment are formed in the side edge, so that wind pressure can be kept, the penetrating power of primary air is enhanced, blocking is not likely to happen, and the performance of the fire grate segment is improved; the movable fire grate protrusions on the movable fire grate segments can well turn over and stir garbage during reciprocating motion, and combustion of the garbage can be better promoted.

A stove is provided that includes a combustion chamber, a fuel grate disposed within the combustion chamber, and a pellet adapter removably positionable on the fuel grate. The fuel grate includes a plurality of first vent holes. The pellet adapter includes a plurality of second vent holes sized and shaped to prevent the passage of fuel pellets. The pellet adapter also includes a raised outer rim and a central protrusion having a height greater than the height of the raised outer rim.

The invention relates to an in-furnace flue gas treatment device and method for a biomass water-cooling vibration grate boiler, and relates to the technical field of dust removal and purification treatment. The device comprises a dust collector shell, an efficient ceramic multi-tube dust collector and a medium-high temperature SCR denitration reactor, the efficient ceramic multi-tube dust collector achieves replacement and maintenance of ceramic sleeves in a modularized mode, rapid replacement or overhaul of a single ceramic sleeve in the dust collector shell can be achieved under the condition that a machine is not stopped, the efficiency of the device is improved, and the service life of the device is prolonged. In addition, the stability of the ceramic sleeve can be guaranteed, and the ceramic sleeve is prevented from violently shaking in the working process; secondly, the flue gas does not need to be reheated in the whole process while the tail flue gas is treated, and the flue gas subjected to dust removal and denitration in a high-temperature state returns to the tail of the boiler and is recycled, so that the flue gas is cleaned, the heat energy recovery efficiency can be improved, blockage and abrasion of a heat exchanger at the tail of the boiler are reduced, and the service life of the boiler is prolonged. And the continuous operation time of the boiler is greatly prolonged.

The present application discloses a grate device and a waste incinerator. The grate device comprises a grate driving mechanism (104) that reciprocally pushes out and retracts a movable grate (102). The grate driving mechanism (104) comprises a base (11) fixed to a machine frame (101) and a driving beam (111) linked to the movable grate (102). A driving oil cylinder (112) is provided on the base (11). An actuation end of the driving oil cylinder (112) is linkedly connected to a first hinge sleeve (121). A first hinge shaft (122) is rotatably inserted into the first hinge sleeve (121). The end of a driving rod (113) toward the driving oil cylinder (112) is linkedly connected to a second hinge sleeve (123). A second hinge shaft (124) is rotatably inserted into the second hinge sleeve (123). An adapter rod (125) is linkedly connected between the first hinge sleeve (121) and the second hinge sleeve (123). The axis of the first hinge shaft (122) and the axis of the second hinge shaft (124) are perpendicular to one another and are both perpendicular to the axis of the adapter rod (125), and the axis of one of the first hinge shaft (122) and the second hinge shaft (124) extends in a horizontal direction.

The utility model discloses a fixed fire grate with an angle adjusting function, and particularly relates to the field of fire grates, the fixed fire grate comprises a fire grate frame, one side of the fire grate frame is connected with a fire grate body, one side of the bottom of the fire grate frame is provided with a connecting and fixing seat, the fire grate frame is movably connected with the connecting and fixing seat through a rotating shaft, and the connecting and fixing seat is fixedly connected with the connecting and fixing seat. A driving box is connected to the inner wall of one side of the connecting and fixing base, a movable cavity is formed in the driving box, threaded cylinders are connected to the inner walls of the two sides of the movable cavity through bearings, worm wheels are arranged on the outer walls of the threaded cylinders in a sleeving mode, a worm is connected to the inner wall of one side of the driving box through a bearing, and the worm is meshed with the two worm wheels; the angle between the fire grate body and the connecting fixing seat is driven to incline through lifting of the threaded rod, angle adjustment of the fire grate body is achieved, fuel can smoothly and continuously slide downwards to fall into a slag pit, and combustion efficiency is improved by adjusting different angles of the fire grate body.

The utility model provides a reciprocating grate incinerator, and mainly relates to the technical field of reciprocating grate incinerators. A reciprocating grate incinerator comprises an incinerator body, a combustion cavity is formed in the incinerator body, an annular combustion grate is arranged at the bottom of the combustion cavity, a power assembly is arranged on the combustion grate, elastic telescopic rods are installed on the inner walls of the two sides of the incinerator body, and a material uniformizing plate can slide up and down along clamping grooves. The garbage incinerator has the beneficial effects that the garbage on the combustion row can be driven to reciprocate through the reciprocating motion of the combustion row, and the garbage on the combustion row can be turned over under the matching of the arc-shaped baffles on the two sides, so that the garbage can be turned over up and down while the garbage reciprocates, the garbage can be fully combusted, and the combustion efficiency is improved. And under the cooperation of a spring and a material uniformizing plate, the overturned garbage can be uniformly and flatly laid on a combustion row, so that the garbage can be sufficiently combusted, and the incineration effect is further improved.

The present application relates to the field of grate of solid waste incineration treatment incinerator, disclose integrated blade grate piece, including the whole grate piece of strip plate shape along the transverse direction, the grate piece includes the base web and a plurality of grate heads arranged side by side on the base web, the internal cavity of the grate head is gas chamber, the base web is provided with the air hole communicated with the gas chamber, the grate head is provided with the primary air hole communicated with the gas chamber;It also includes the grate shaft, and the base web is connected on the grate shaft.The present application is the transverse whole integrated structure grate piece, and the plurality of grate heads is axially and circumferentially arranged in a staggered manner, which has a comprehensive separation effect on the garbage layer, so that the staggered primary air is more easily penetrated into the layer, the material drying and combustion rate are enhanced, the material processing cycle is shortened, the system working efficiency is improved, and the transverse connection and tailstock support structure of the grate piece are removed, the parts and system combination structure are simplified, and the installation and maintenance cycle is effectively shortened.

The utility model relates to the field of fire grates, and discloses a foldable vibration fire grate for a biomass boiler, which comprises a hearth, an ash discharge port is arranged at the bottom of the front side wall of the hearth, the inner top wall of the ash discharge port is rotatably connected with a boiler door, guide holes are arranged in the middle of the front inner side wall and the rear inner side wall of the hearth, and the guide holes are positioned above the ash discharge port. A plurality of furnace grates are arranged between the two guide holes in a left-right mode, the adjacent furnace grates are rotationally connected, pulleys are rotationally connected to the middles of the front ends and the rear ends of the furnace grates, the pulleys are located in the guide holes, the pulleys are in sliding fit with the guide holes, and sliding holes are formed in the left sides of the front side wall and the rear side wall of the hearth and located in the left sides of the guide holes. The front end, the rear end and the left end of the leftmost grate are fixedly connected with sliding rods, the sliding rods are inserted into the sliding holes in the same side, the sliding rods are in sliding fit with the sliding holes, an air cylinder is fixedly installed at the bottom of the left side wall of the hearth, and the top end of an air cylinder column of the air cylinder is fixedly connected with a connecting block.

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 application relates to a biomass water-cooled vibrating grate boiler flue gas treatment device and method, and relates to the technical field of dust removal and purification treatment; it includes a dust remover shell, a high-efficiency ceramic multi-tube dust remover, and a medium-high temperature SCR denitration reactor; the high-efficiency ceramic multi-tube dust remover realizes the replacement and maintenance of ceramic sleeve pipes in a modular way, can realize the quick replacement or maintenance of single ceramic sleeve pipes inside the dust remover shell without stopping the machine, improves the efficiency, and can guarantee the stability of the ceramic sleeve pipes and avoid the violent shaking of the ceramic sleeve pipes during work; secondly, the present application processes the tail flue gas, does not need to reheat the flue gas during the whole process, returns the flue gas after dust removal and denitration to the boiler tail under the high-temperature state, and realizes recycling; not only the clean flue gas can improve the heat energy recovery efficiency, but also can reduce the blockage and wear of the boiler tail heat exchanger, greatly prolongs the continuous operation time of the boiler.

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 cooling system of a movable fire grate segment. The fire grate comprises fixed fire grate segments and water-cooling movable fire grate segments which are alternately distributed on a fire grate box body in a stepped mode. Wherein a cooling pipe is pre-buried in the movable fire grate segment; the movable supporting mechanism is used for supporting the water-cooling movable fire grate segments to move; the driving mechanism comprises a push rod, and the push rod comprises a hollow pipe; the liquid inlet pipeline assembly comprises a liquid inlet flexible pipeline, a liquid inlet internal pipeline and a liquid inlet leading-out pipeline which are sequentially connected with the liquid supply end of the cooling liquid source; the liquid return pipeline assembly comprises a liquid return flexible pipeline, a liquid return internal pipeline and a liquid return leading-out pipeline which are sequentially connected with the liquid return end of the cooling liquid source; the inlet end and the outlet end of the cooling pipe are respectively connected with a liquid inlet leading-out pipeline and a liquid return leading-out pipeline; the liquid inlet flexible pipeline and the liquid return flexible pipeline are both arranged outside the fire grate box body; and the liquid inlet internal pipeline and the liquid return internal pipeline are arranged in the hollow pipe. The long-term stability of the cooling system can be improved.

The utility model relates to the field of garbage incinerator grate segments, in particular to a garbage incinerator grate segment. The garbage incinerator grate segment comprises a grate segment body, hollow connecting columns and an ejector rod, trapezoidal strips are fixedly connected to one end of the propelling face of the grate segment body, ventilation holes are formed in the positions, between the two trapezoidal strips, of one end of the grate segment body at equal intervals, and the hollow connecting columns are fixedly connected to the positions, located at the ventilation holes, of the bottom end of the grate segment body; air inlets are formed in the outer portions of the hollow connecting columns, ejector rods are slidably connected to the interiors of the hollow connecting columns, connecting plates are fixedly connected to the bottom ends of the adjacent ejector rods, and the two connecting plates are arranged in a stepped mode. According to the utility model, the slidable ejector rod and the stepped connecting plate are arranged in the hollow connecting column, so that an automatic cleaning mechanism of the ventilation hole is realized; due to the design, the ventilation holes are effectively prevented from being blocked, smooth circulation of air is ensured, the ventilation efficiency of the incinerator is improved, and sufficient combustion of garbage is promoted.

The present application relates to garbage disposal technical field, specifically disclose integrated grate garbage gasification combustion furnace, including drying gasification chamber and burning chamber, drying gasification chamber is equipped with push material platform and integrated grate body, integrated grate body includes two edge beam components, integrated fixed grate and integrated movable grate, the first end of edge beam component extends into the below of push material platform, the distance between the first end of integrated movable grate and push material platform is greater than the moving stroke of integrated movable grate, edge beam component is equipped with primary air channel for supplying air to integrated fixed grate, the tail end of integrated grate body is equipped with vertical partition wall and inclined refractory wall, the bottom of refractory wall is hinged with isolation flap, the isolation flap is vertically arranged and forms closed triangular area with partition wall and refractory wall to separate burning chamber and integrated movable grate. The present application can solve the technical problems of uneven heat distribution in the existing technology furnace, low utilization rate of heat, low heat conversion efficiency, limited garbage pyrolysis gasification and burning 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 chain grate with reciprocating grate plates relates to the technical field of energy-saving and environmentally friendly layer-fired boiler combustion equipment. The present invention aims to solve the problems of the upper part of the existing chain grate catching fire, resulting in incomplete fuel combustion loss, affecting boiler efficiency, the high temperature borne by the reciprocating grate plates, and the grate plates being easily deformed and burned. The present invention comprises a front axle group, a rear axle group, a rotary drive mechanism, two transmission chains, multiple rows of fixed grate plates, multiple rows of movable grate plates, and multiple groups of crank slider mechanisms. The front axle group and the rear axle group are arranged in parallel. Multiple rows of fixed grate plates are fixed in parallel along the length direction between the two transmission chains. A row of movable grate plates is provided between each two adjacent rows of fixed grate plates. Multiple groups of crank slider mechanisms are arranged in parallel along the width direction between the two transmission chains. Multiple rows of movable grate plates reciprocate in the upper part between the front axle group and the rear axle group via the crank slider mechanism. The present invention is used for layer-fired boiler combustion.

The utility model discloses an efficient energy-saving chain automatic slag removal biomass burner which comprises a furnace body, a hearth, a feeding mechanism, a slag removal mechanism and a chain grate stoker mechanism, the hearth is arranged in the furnace body, an interlayer is arranged between the hearth and the furnace body, and a fan is arranged at one end of the furnace body and communicated with the furnace body to blow air into the interlayer; the feeding mechanism is arranged above the furnace body and communicated with the hearth, the slag removal mechanism is arranged below the hearth, and the chain grate mechanism is arranged in the hearth and located above the slag removal mechanism. One end of the furnace body is provided with a furnace opening and communicated with the hearth for ignition, the furnace opening is provided with a sleeved protective cover, the protective cover is fixedly connected with the side wall of the furnace body, and a gap is formed between the protective cover and the furnace opening; the feeding mechanism feeds materials to the chain grate stoker mechanism in the hearth. Slag can be transferred and cleaned in real time in the combustion process through the chain grate stoker mechanism, the combustion environment of new materials is guaranteed, meanwhile, due to the arrangement of the partition plates and the ventilation openings, the combustion efficiency can be improved, and the efficient and energy-saving effects are achieved.

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 discloses efficient combustion equipment for biomass particles, and particularly relates to the technical field of biomass combustion equipment, the efficient combustion equipment comprises a base, a combustion furnace, a feeding mechanism and an air supply mechanism are arranged above the base, and the efficient combustion equipment further comprises a vibration mechanism and a decoking mechanism. Through the arrangement of the material vibrating mechanism, an impeller can be blown to drive a rotating plate to rotate in the process that air is fed into the combustion chamber by an air supply pipe, and a first piston piece is driven by a connecting rod to reciprocate up and down in a gas collecting cavity, so that gas in the gas collecting cavity and gas in a piston cavity can alternately circulate; and a concave-convex part on the driving block is in contact with the driven wheel, so that the second fire grate moves up and down in the combustion chamber to generate a vibration effect, biomass particles falling on the second fire grate are vibrated, local accumulation and air circulation blocking are avoided, the biomass particles can form a uniform combustion layer, and the combustion efficiency is improved. Continuous and stable feeding of a combustion area is ensured, heat energy is released more sufficiently, and therefore the overall heat efficiency is improved.

The invention discloses a garbage incineration water-cooling fire grate segment, a fire grate module and an incinerator. The garbage incineration water-cooling fire grate segment comprises a fire grate segment body; the medium pipe and the fire grate segment body are integrally cast and formed through a pipe burying casting technology, and the medium pipe is provided with a first pipe opening and a second pipe opening which extend to the outer side of the fire grate segment body. The medium pipe and the fire grate segment body are integrally cast and formed through the pipe burying casting technology, and the medium pipe is provided with the first pipe opening and the second pipe opening which extend to the outer side of the fire grate segment body so that the medium pipe can be conveniently connected with a corresponding pipeline. The medium pipe is formed on the fire grate segment body through the buried pipe casting technology, so that the waste incineration water-cooling fire grate segment is the water-cooling fire grate segment with the medium cavity, the medium cavity does not need to be formed during casting, forming defects are not prone to occurring, and the width size of the waste incineration water-cooling fire grate segment can be increased. After the width size of the waste incineration water-cooling fire grate segment is increased, the number of connectors of a row of fire grate segments is reduced, and the probability of water leakage of the connectors is reduced.

The utility model relates to the field of fire grates, and discloses an adjustable fire grate which comprises a furnace barrel, an ash discharge port is formed in the bottom of the front side wall of the furnace barrel, a plurality of fixing battens are arranged in the furnace barrel, the fixing battens are located above the ash discharge port, the fixing battens are distributed at equal intervals in the left-right direction, and the front ends and the rear ends of the fixing battens are fixedly connected with the front inner wall and the rear inner wall of the furnace barrel. A long-strip-shaped hole is formed between every two adjacent fixing battens, the width of the long-strip-shaped holes is equal to that of the fixing battens, a limiting plate is arranged below the fixing battens, the limiting plate is in a frame shape, the limiting plate is fixedly connected with the inner wall of the furnace barrel, the limiting plate is in clearance fit with the fixing battens, a furnace bottom plate is arranged between the limiting plate and the fixing battens, and the left end of the furnace bottom plate penetrates through the furnace barrel. By drawing the furnace bottom plate, the ventilation effect in the furnace can be conveniently adjusted, different combustion requirements are met, the drawing design of the furnace bottom plate facilitates adjustment of the ventilation effect, ash can be effectively prevented from blocking the ventilation channel, and smooth ventilation of air in the furnace barrel is ensured.

The invention relates to a water-cooled fire grate which is provided with a pivot header, the pivot header is a long and thin pipe fitting and is suitable for penetrating through a water cooling wall of a boiler to be rotatably supported, so that the water-cooled fire grate can rotate around the pivot header to adjust the inclination angle, and a water inlet and a water outlet are formed in the ends of the two sides of the pivot header respectively. The invention further relates to a boiler comprising the fire grate, the two ends of a pivot header of the water-cooled fire grate extend to the outer sides of the two side wall water-cooled walls correspondingly and are rotationally supported by supporting pieces, and the pivot header is provided with a water inlet assembly and a water outlet assembly around a water inlet and a water outlet correspondingly. According to the water-cooled fire grate, the water-cooled fire grate is provided with the pivot header, so that the water-cooled fire grate can rotate greatly around the pivot header, and the inclination angle can be adjusted greatly. In addition, due to the fact that a water-cooling structure is used, the temperature of the whole water-cooling fire grate is greatly reduced compared with that of a non-water-cooling structure, adhesion and coking of fuel can be avoided, and parts are prevented from being damaged by high-temperature smoke.

The invention relates to the technical field of waste incineration, in particular to a heat conduction oil heating system and a heat conduction oil temperature control method. Comprising a garbage grate, a boiler hearth, a high-temperature superheater, a medium-temperature superheater, a high-temperature heat-conducting oil heat exchanger, a low-temperature superheater, a low-temperature heat-conducting oil heat exchanger, an economizer, a flue gas preheater and a flue gas purification system which are sequentially arranged along the flue gas flow. According to the system, a flue gas backflow system is arranged in front of an inlet of a flue gas purification system and used for extracting low-temperature flue gas and conveying the low-temperature flue gas to the front of an inlet of a high-temperature heat conduction oil heat exchanger so as to regulate and control the flue gas temperature of the inlet, and through integrated arrangement of multiple stages of heating surfaces, high-quality steam and industrial heat conduction oil are efficiently produced while waste heat of waste incineration is achieved; after the high-temperature heat conduction oil heat exchanger is arranged in a high-temperature flue gas area, the pipe wall abrasion and pipe explosion risks are avoided; and active and accurate control of the temperature of the heat conduction oil is realized through a flue gas backflow mechanism, so that over-temperature cracking and coking of the heat conduction oil are effectively prevented, and the operation safety and stability of the system are remarkably improved.

The utility model relates to the technical field of garbage disposal, in particular to a movable garbage incinerator which comprises an incinerator body, a movable base, a feeding pipe, a smoke exhaust pipe, a fixed fire grate and a turning assembly, the incinerator body is connected with the movable base, the feeding pipe and the smoke exhaust pipe are connected to the incinerator body, the fixed fire grate is connected to the incinerator body, and the turning assembly is connected with the movable base. The two overturning assemblies are symmetrically arranged and connected to the incinerator body, each overturning assembly comprises a telescopic device, a movable fire grate and a rotating assembly, and each rotating assembly comprises a gear and a rack. According to the utility model, the telescopic device of the turning assembly can drive the movable grate to move vertically from the fixed grate, so that garbage on the fixed grate is lifted and is in contact with the rack in the vertical moving process, and the gear can move and rotate synchronously with the movable grate; and when the gear is engaged with the rack, the movable fire grate is driven to rotate to shake off the garbage, and the garbage is prevented from being accumulated to affect combustion.

This utility model discloses a reciprocating grate device with intermediate buffers, characterized in that: the grate device includes a multi-span grate body (1), an intermediate wall plate (2) is provided between adjacent grate bodies (1), and multiple intermediate buffers (3) are provided on the top of the intermediate wall plate (2). The intermediate buffer (3) includes an intermediate support block (4) fixedly connected to the intermediate wall plate (2). Buffer grooves (5) are respectively opened on both sides of the intermediate support block (4). A buffer plate (6) is movably connected in the buffer groove (5). Two through holes (7) are symmetrically opened on the intermediate support block (4). A spring (8) is provided in the through hole (7). A connecting end (9) is provided on the inner wall of the buffer plate (6). The buffer plate (6) is connected to the end of the spring (8) through the connecting end (9).

A first dredging rod is arranged on the upper surface of a movable fire grate, a rotating connecting rod and a second dredging rod movably connected with the rotating connecting rod are arranged on the lower portion of the movable fire grate, and a front fixed shifting piece and a rear fixed shifting piece are arranged on the upper surface of the lower adjacent movable fire grate. The first dredging rod and the second dredging rod are driven to move forwards to dredge the first ventilation hole and the second ventilation hole when the movable fire grate moves forwards relative to the fixed fire grate, and the first dredging rod and the second dredging rod are driven to move backwards to retreat from the ventilation holes when the movable fire grate moves backwards. Automatic cleaning of the primary air holes of the fire grate is achieved, the primary air holes can be dredged every time the movable fire grate advances in place, circulation of the primary air holes is guaranteed, the air holes can be effectively prevented from being blocked without other power sources, the cooling effect of the fire grate is guaranteed through smoothness of the air holes, and primary air can enter the furnace through the ventilation holes to promote garbage combustion.

The feeding fire grate with the anti-jamming function comprises an outer frame, a movable frame is arranged in the outer frame, and a hydraulic telescopic mechanism used for pushing the movable frame to move is further arranged in the outer frame; the lifting beam is arranged at the lower part of the inner side of the outer frame and is used for guiding and limiting the movement of the movable frame; and the anti-warping beam is arranged at the upper part of the inner side of the outer frame and is used for guiding and limiting the movement of the movable frame. According to the feeding fire grate with the anti-jamming function, through combination of a multi-dimensional guiding structure and a rolling structure, the movement stability is remarkably improved, and sliding friction is converted into rolling friction through cooperation of a three-way guiding mechanism of the bottom lifting beam, the top anti-warping beam and the side face guiding side rails and the synergistic effect of the guide rails and the rolling assemblies; by means of the design, loads can be evenly dispersed, the displacement track of the movable frame is precisely limited, the movable frame is prevented from being tilted, deviated or shaken, and the jamming risk caused by mechanical dislocation is fundamentally reduced.

The utility model relates to a fire grate for a household garbage gasification incinerator. Comprising a fire grate shell, a water-cooling fire grate is installed in the middle of an inner cavity of the fire grate shell, the water-cooling fire grate is composed of a plurality of parallel steel pipes, the end of each steel pipe is fixedly connected with the side wall of the fire grate shell, and the end of each steel pipe is communicated with the outside of the fire grate shell; one end of each steel pipe of the water-cooling grate is sealed in the water inlet tank, and the other end of each steel pipe of the water-cooling grate is sealed in the water outlet tank; the comb teeth are installed on the comb tooth frame, the upper portions of the comb teeth are located between the adjacent steel pipes of the water-cooling grate, and the upper ends of the comb teeth are higher than the surface of the water-cooling grate. The problem that the temperature of the fire grate is too high is solved through a cooling means, the problems that ash on the fire grate is coked and uneven in distribution are solved through a technical means, the operation stability of the incinerator is guaranteed, and faults and safety accidents are reduced.