阅读说明：本技术 一种双层微动态炉排生物质热水炊事采暖炉 (Biomass hot water cooking and heating stove with double-layer micro-dynamic fire grates ) 是由 刘锋 杨天坤 史海廷 魏冲 于 2019-11-07 设计创作，主要内容包括：本发明公开了一种双层微动态炉排生物质热水炊事采暖炉,包括炉体,还包括控制器系统、送料防返火系统、除渣及炉排燃烧系统、配风系统、热量交换应用系统及清理净化系统；所述炉渣及炉排燃烧系统包括设置在所述炉体内的炉膛、安装在所述炉膛底部的活动炉排、用于点燃活动炉排上堆积燃料的点火器、固定炉排、除渣绞龙、除渣电机和灰盒；生物质燃料落入一次活动炉排前段在除渣绞龙的轻微转动向缓慢移动以防止结焦结渣,并在此过程中完成预热、挥发及部分固定碳燃烧；未燃尽的固定碳在二次固定炉排上完成最终燃烧。分区分段的微动态燃烧结构不但燃尽率高,而且有效杜绝了生物质炉具常见的结焦结渣问题。(The invention discloses a double-layer micro-dynamic grate biomass hot water cooking and heating furnace, which comprises a furnace body, a controller system, a feeding anti-backfire system, a deslagging and grate combustion system, an air distribution system, a heat exchange application system and a cleaning and purifying system, wherein the controller system is connected with the controller system; the furnace slag and grate combustion system comprises a furnace hearth arranged in the furnace body, a movable grate arranged at the bottom of the furnace hearth, an igniter used for igniting fuel accumulated on the movable grate, a fixed grate, a deslagging auger, a deslagging motor and an ash box; the biomass fuel falls into the front section of the primary movable grate and slowly moves in the slight rotation direction of the deslagging auger to prevent coking and slagging, and preheating, volatilization and partial fixed carbon combustion are completed in the process; the unburned fixed carbon completes the final combustion on the secondary fixed grate. The micro-dynamic combustion structure with the sectional areas has high burnout rate and effectively avoids the common coking and slagging problems of the biomass stoves.)

1. A double-layer micro-dynamic grate biomass hot water cooking and heating furnace comprises a furnace body, and is characterized by also comprising a controller system, a feeding anti-backfire system, a deslagging and grate combustion system, an air distribution system, a heat exchange application system and a cleaning and purifying system;

the furnace slag and grate combustion system comprises a furnace hearth arranged in the furnace body, a movable grate arranged at the bottom of the furnace hearth, an igniter used for igniting fuel accumulated on the movable grate, a fixed grate positioned below the movable grate, a deslagging auger used for pushing the fuel on the movable grate to the fixed grate, a deslagging motor used for driving the deslagging auger, and an ash box used for collecting furnace slag falling from the fixed grate;

the heat exchange system comprises a furnace body top, a cooking opening communicated with the furnace cavity, a water jacket arranged on one side of the furnace cavity, and a cooking opening communicated with the furnace cavity and arranged on the furnace body top, wherein the water jacket is provided with a water outlet and a water return opening.

2. The biomass hot-water cooking and heating stove with the double-layer micro-dynamic grate is characterized by further comprising a feeding anti-backfire system, wherein the feeding anti-backfire system comprises a storage bin arranged in the stove body, an anti-backfire blanking channel communicated with the storage bin and a hearth recycling channel communicated with the storage bin, the bottom of the storage bin is used for conveying biomass granular fuel to a feeding auger in the anti-backfire blanking channel, a feeding motor used for driving the feeding auger and a flue gas recycling channel communicated with a cooking opening, the bottom of the anti-backfire blanking channel is communicated with the hearth, an opening is formed in the top of the anti-backfire blanking channel, a blanking opening air door cover is arranged at the opening, and the biomass granular fuel can directly fall onto the movable grate after passing through the anti-backfire blanking channel.

3. The biomass hot-water cooking and heating stove with the double-layer micro-dynamic grate as claimed in claim 2, further comprising a cleaning and purifying system, wherein the cleaning and purifying system mainly comprises a flue communicated with the cooking port, a purifying water tank for absorbing flue gas in the flue, a flue gas filtering plate arranged at the outlet of the flue, a smoke outlet communicated with the flue, and a flue cleaning port arranged at the position where the smoke outlet is communicated with the flue.

4. The double-deck micro-moving grate biomass hot-water cooking and heating stove of claim 3, further comprising a control system, wherein the control system comprises a controller, the feeding motor, the igniter and the slag removal motor, and the controller is electrically connected with the control system.

Technical Field

The invention relates to the field of heating furnace equipment, in particular to a biomass hot water cooking and heating furnace with a double-layer micro-dynamic grate.

Background

The heating furnaces are quite complete in variety, mainly comprise electric heating furnaces, fuel and gas heating furnaces, coal-fired heating furnaces and the like, and along with the improvement of the living standard and the enhancement of environmental awareness of people, people begin to select clean and pollution-free heating products, such as heating furnaces burning biomass particles; the problem of coking and slagging easily occurs when the existing heating stove burns biomass particles, and the existing heating stove needs manual cleaning and is very troublesome.

Disclosure of Invention

The invention provides a biomass hot-water cooking and heating furnace with a double-layer micro-dynamic grate, which can solve the problem that the heating furnace in the prior art is easy to coke and slag when in work.

A double-layer micro-dynamic grate biomass hot water cooking and heating furnace comprises a furnace body, a controller system, a feeding anti-backfire system, a deslagging and grate combustion system, an air distribution system, a heat exchange application system and a cleaning and purifying system;

the slag and grate combustion system comprises a hearth arranged in the furnace body, a movable grate arranged at the bottom of the hearth, an igniter used for igniting fuel accumulated on the movable grate, a fixed grate positioned below the movable grate, a slag removing auger used for pushing the fuel on the movable grate onto the fixed grate, a slag removing motor used for driving the slag removing auger and an ash box used for collecting slag falling from the fixed grate;

the heat exchange system comprises a furnace body top, a cooking opening communicated with the furnace cavity, a water jacket arranged on one side of the furnace cavity, and a cooking opening communicated with the furnace cavity and arranged on the furnace body top, wherein the water jacket is provided with a water outlet and a water return opening.

The preferred still prevents the system of returning a fire including the feeding, the feeding is prevented the system of returning a fire including setting up feed bin in the furnace body, with what the feed bin intercommunication prevent returning a fire blanking passageway, set up and be in the bottom of feed bin is used for transporting biomass pellet fuel extremely prevent returning the feeding auger in the fire blanking passageway, be used for the drive the feeding motor of feeding auger and with the flue gas recirculation passageway of cooking mouth intercommunication, prevent returning a fire blanking passageway the bottom with furnace intercommunication, prevent returning the top of fire blanking passageway and be equipped with the opening and the opening part is provided with blanking mouth flap, biomass pellet fuel process prevent returning and directly fall behind the fire blanking passageway on the movable grate.

Preferably, the kitchen range hood further comprises a cleaning and purifying system, wherein the cleaning and purifying system mainly comprises a flue communicated with the cooking port, a purifying water tank for absorbing flue gas in the flue, a flue gas filtering plate arranged at the outlet of the flue, a smoke outlet communicated with the flue, and a flue cleaning port arranged at the position where the smoke outlet is communicated with the flue.

Preferably, the device further comprises a control system, wherein the control system comprises a controller, the feeding motor, the igniter and the slag removing motor which are electrically connected with the controller.

Compared with the prior art, the invention has the beneficial effects that:

space separation structure for preventing fire return and burning

The discharging port is inclined upwards at a certain angle and enters a discharging air channel with a certain height difference, the combustion chamber is positioned below the discharging air channel, and the combustion chamber and the discharging port are separated in space, so that the discharging port is prevented from contacting the combustion chamber for a long time, and overheating, smoke returning and fire returning are prevented; the periphery of the blanking air channel is of a full water jacket structure, and meanwhile, partial primary air and secondary air enter the hearth from the outside through the blanking air channel, so that relatively low-temperature fire return prevention of the blanking port and the blanking air channel is guaranteed while combustion-supporting air is preheated. In addition, when the extreme state such as power failure occurs, redundant heat can be discharged through a blanking port air door at the upper part of the blanking air passage and the smoke recirculation communication passage, so that the smoke return and fire return of the storage bin caused by smoke heat collection are prevented;

micro-dynamic and static combined double-grate combustion structure

The furnace grate of the combustion chamber is divided into a primary movable furnace grate and a secondary fixed furnace grate, the biomass fuel falls into the front section of the primary movable furnace grate and slowly moves in the slight rotation direction of the deslagging auger to prevent coking and slagging, and preheating, volatilization and partial fixed carbon combustion are completed in the process; the unburned fixed carbon completes the final combustion on the secondary fixed grate. The micro-dynamic combustion structure with the sectional areas has high burnout rate, and effectively avoids the common coking and slagging problems of the biomass stove;

multi-stage and three-time combustion-supporting air distribution combined micro-negative pressure combustion structure

In order to reduce the high-temperature coking and coking caused by excessive dust and excessive local oxygen due to blast, the design of the patent cancels a blast system, the tail end of the blast system is provided with a suction fan, combustion-supporting air is provided for combustion in a furnace in a negative pressure suction mode, a multistage tertiary combustion-supporting air distribution structure is designed aiming at the structural characteristics of a micro-dynamic double grate in combination with the negative pressure suction system patent, two parts of primary air enter a bin at the front part of a primary movable grate and are mainly used for preheating volatilization and small-amount combustion of particulate fuel, one part of primary air enters the bin from the front section at the lower part of the primary movable grate and passes through the bin, and the other part of primary air enters a material layer from the upper part of; the secondary air is mainly used for fully burning volatile components in the hearth and burning off fixed carbon on the secondary fixed grate and mainly enters from the rear section of the primary movable grate and the bottom of the secondary fixed grate; the tertiary air is mainly used for fully burning out volatile components during the cooking function of big fire and mainly enters from gaps of holes of a furnace door and a smoke recirculation communication channel. The multi-stage tertiary combustion-supporting air distribution technology in the micro-negative pressure environment effectively reduces the furnace temperature of the core of the hearth and the generation of nitrogen oxides, the hearth negative pressure extraction technology replaces combustion-supporting blast air so as to reduce hearth dust and reduce smoke particulate emission, and the multi-stage tertiary combustion-supporting air is combined with hearth partition micro dynamic combustion to improve the comprehensive efficiency of a furnace and effectively eliminate the puzzlement of coking and slagging;

liquid state adsorption and filter plate filtration combined flue gas purification system

In order to reduce the cleanliness of the smoke emission of patent products, a composite smoke dust removal filtering purification system is introduced, and firstly, the patent adopts multistage micro negative pressure to replace blast combustion supporting, so that the dust mixing in the smoke is reduced fundamentally; secondly, a purifying water tank is added at the bottom of the middle section of the flue and a great amount of particles in the flue gas are adsorbed by combining the inertia of the flowing flue gas; finally, a special alloy filter screen is added at the tail end of the flue and the front part of the chimney to finally filter the particulate matter emission in the flue gas. The introduction of the patent comprehensive flue gas purification system effectively reduces the emission of solid particles in flue gas by 85-95%.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a rear side structure diagram of the present invention.

Description of reference numerals:

1-furnace body, 2-storage bin, 3-feeding auger, 4-feeding motor, 5-igniter, 6-movable grate, 7-fixed grate, 8-deslagging motor, 9-deslagging auger, 10-cooking port, 11-auxiliary cooking fire basket, 12-fire-return-preventing blanking channel, 13-flue gas filter plate, 14-flue, 15-ash box, 16-purifying water tank, 17-flue gas recirculation channel, 18-blow-off port, 19-controller, 20-furnace door, 21-furnace chamber, 22-smoke exhaust port, 23-safety valve interface, 24-water outlet, 25-water return port, 26-air inlet, 29-blanking port air door cover and 30-flue gas cleaning port.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

As shown in fig. 1 to 3, the biomass hot-water cooking and heating furnace with the double-layer micro-dynamic fire grates according to the embodiment of the invention comprises a furnace body, a controller system, a feeding anti-backfire system, a deslagging and fire grate combustion system, an air distribution system, a heat exchange application system and a cleaning and purifying system;

the slag and grate combustion system comprises a hearth 21 arranged in the furnace body, a movable grate 6 arranged at the bottom of the hearth 21, an igniter 5 used for igniting fuel accumulated on the movable grate 6, a fixed grate 7 positioned below the movable grate 6, a slag removing auger 9 used for pushing the fuel on the movable grate 6 onto the fixed grate 7, a slag removing motor 8 used for driving the slag removing auger 9 and an ash box 15 used for collecting slag falling from the fixed grate 7;

the controller 5 mainly ignites the accumulated fuel of the movable grate 6 in a hot air blowing mode through instructions during ignition; the deslagging motor 8 drives the deslagging auger 9 to operate by receiving an intermittent operation instruction of the controller 19 to continuously push the formed fuel accumulated on the movable grate 6 forwards in a micro-dynamic state, the fuel finishes waste heat, volatilization and fixed carbon combustion in the slow advancing process, the unburned fixed carbon part falls onto the fixed grate 7 to be continuously combusted, and finally falls into the ash box 15 after being combusted, and the separated volatile component is combined with secondary air and tertiary air in the hearth 21 to finish complete combustion;

the heat exchange system comprises a cooking opening 10 arranged at the top of the furnace body and communicated with the hearth 21, an auxiliary cooking fire basket 11 arranged at the position where the cooking opening 10 is communicated with the hearth 21, and a water jacket 1 arranged on one side of the hearth 21, wherein the water jacket 1 is provided with a water outlet 24 and a water return opening 25;

the fixed carbon and the volatile component of the fuel finish burning in the burner hearth 21, the heat transfer surface of the burner hearth 21 is in the high-temperature region and finish a large amount of heat to absorb, the flame gathers and gathers in the cooking port 10 through the auxiliary cooking fire basket 11 to carry on the cooking firepower output in the time of the big fire, the high-temperature flue gas passes the flue heat exchange 14 after cooking and is discharged from the exhaust port 22 finally; the heating circulating hot water enters the water jacket 01 through the water return port 25, and is discharged through the smoke outlet 22 after being subjected to indirect heat exchange with the smoke;

the biomass particle fuel cooking furnace is characterized by further comprising a feeding anti-backfire system, wherein the feeding anti-backfire system comprises a material bin 2 arranged in the furnace body, an anti-backfire blanking channel 12 communicated with the material bin 2, a feeding auger 3 arranged at the bottom of the material bin 2 and used for conveying biomass particle fuel to the anti-backfire blanking channel 12, a feeding motor 4 used for driving the feeding auger 3 and a flue gas recirculation channel 17 communicated with the cooking opening 10, the bottom of the anti-backfire blanking channel 12 is communicated with the furnace cavity 21, an opening is formed in the top of the anti-backfire blanking channel 12, a blanking opening air door cover 29 is arranged at the opening, and the biomass particle fuel can directly fall onto the movable furnace grate 6 after passing through the anti-backfire blanking channel 12;

the material stored in the storage bin 2 is mainly conveyed by a feeding auger 3 and falls into the fixed grate 6 through a flue gas recirculation channel 17 to complete combustion; the feeding auger 3 is driven by a feeding motor 4, the feeding motor 4 is operated intermittently by receiving instructions of a controller 19 to control feeding, and the feeding is isolated by the space of the anti-backfire blanking channel 12, and the anti-backfire system is formed by combining continuous cooling of cold air entering the smoke recirculation channel 17 through the blanking port air door cover 29;

the cleaning and purifying system mainly comprises a flue 14 communicated with the cooking port 10, a purifying water tank 16 for absorbing flue gas in the flue 14, a flue gas filtering plate 13 arranged at the outlet of the flue 14, a smoke outlet 22 communicated with the flue 14, and a flue cleaning port 30 arranged at the communication position of the smoke outlet 22 and the flue 14;

as shown in fig. 2, the flue 14 has two vertical pipes, the purification water tank 16 is located at the bottom of the two vertical pipes, the flue gas contacts the water stored in the purification water tank 16 in a large amount under the inertia effect when the flue gas is folded back at the bottom of the flue 14, most of the solid particles in the flue gas are separated, finally the flue gas passes through the flue gas filter plate 13 before being discharged out of the smoke exhaust port 22 for filtration and purification, and the flue cleaning port 30 is mainly used for washing the flue gas filter plate 13 and injecting water into the purification water tank 16;

the furnace further comprises a control system, the control system comprises a controller 19, the feeding motor 4, the igniter 5 and the deslagging motor 8 which are electrically connected with the controller 19, and the controller 19 controls the running state of the furnace by controlling the feeding motor 4, the igniter 5, the deslagging motor 8 and an outdoor induced draft fan;

the device also comprises an air distribution power system, wherein the power of the air distribution system is mainly provided by an external outdoor suction fan and respectively enters from the lower part 12 of the fire-return-preventing blanking air duct, the upper part 6 of the movable grate, the lower part of the fixed grate 7, the pores of the furnace door 20, the smoke recirculation channel 17 and the like; wherein most of the combustion-supporting air enters the furnace body from 26 air inlets, and the air inlets 26 are positioned at the bottom of the furnace body;

the wood biomass forming granular fuel is stored in a bin 2, when the wood biomass forming granular fuel is started, a feeding motor 4 receives an operation instruction of a controller 19, a feeding auger 3 is rotationally driven to drop the fuel on a combustion movable grate 6 through an anti-backfire blanking channel 12, the feeding motor 4 stops operating after continuous feeding is carried out for 3-5 minutes, an igniter 5 receives the operation instruction of the controller 19, the fuel on the combustion movable grate 6 is heated by hot air baking for 5-10 minutes and then is ignited, and the flame in a hearth 21 is obvious; at the moment, when the furnace enters a normal operation state, the controller 19 issues an operation instruction for the feeding motor 4 according to the gear setting interval to drive the feeding auger 3 to intermittently feed materials to the combustion movable grate 6.

The fuel enters the combustion movable grate 6 to be preheated and volatilized in the front half section of the combustion movable grate, the volatilization is combined with the fixed carbon to be combusted in the rear half section of the combustion movable grate 6, the volatilized components separated out from the fuel are combined with the preheated secondary air entering from the half part of the primary combustion movable grate 6 and the fixed grate 7 in the hearth 21 to be fully combusted, a large amount of combustion flame is gathered by the auxiliary cooking fire basket 11 and then the cooking function is started at the cooking opening 10; then the high temperature flue gas will skip the bottom of the cooking mouth 10 and enter the flue 14 to carry on the heat exchange, then the flue gas contacts with a large amount of water surface in the purified water tank 16 and combines a large amount of particulate matters in the inertia effect flue gas to be adsorbed and separated, then the flue gas is discharged by the smoke vent 22 after passing through the flue heat 14 exchange of the right end and passing through the flue gas filter 13 to be purified and filtered, the smoke vent 22 is connected with the chimney, the chimney extends to the outdoor and then is connected with the outdoor machine of drawing and drawing to discharge smoke.

After falling on the combustion movable grate 6 through the anti-backfire blanking air duct 12, the fuel gradually moves towards the tail end of the grate under the intermittent operation of the deslagging auger 9, the processes of waste heat, gasification and volatilization and part of fixed carbon combustion are completed in the period, then the unburned fixed carbon part of the fuel falls on the fixed grate 7 to continue to complete full combustion, and finally the burnt ash falls into the ash box 15 from the fixed grate 7; the operation of the deslagging auger 9 is mainly controlled by a controller 19 and is driven by a deslagging motor 8.

The heated circulating hot water enters the furnace body water jacket through the water return port 25, is finally discharged from the water outlet 24 after a series of reverse heat exchange in the water jacket, the interface of the safety valve 23 on the furnace water jacket 1 is mainly used for connecting an explosion-proof valve to ensure the use safety, and the sewage discharge port 18 is used for periodically cleaning accumulated sewage in the water jacket 1.

The combustion-supporting air of the stove is mainly distributed for three times, wherein the primary air is mainly air sucked from the front section of the combustion movable grate 6 and air sucked from the blanking port air door cover 29 and entering through the anti-backfire blanking air duct 12; the secondary air mainly comprises air entering from the rear section of the combustion movable grate 6 and the lower part of the fixed grate 7; the tertiary air mainly comprises air which is infiltrated from a cooling hole of the furnace door 20 and enters through the flue gas recirculation channel 17; the tertiary air distribution is mutually blended to finish the comprehensive combustion of the biomass granular fuel;

the accumulated burnt ash in the ash box 15 needs to be cleaned regularly by manpower, and the ash box 15 is directly drawn out and directly poured out during cleaning; the water tank 16 is periodically filled with water and cleaned of accumulated dirt depending on the use conditions. The flue gas filtering plate 30 needs to be washed and cleaned after being used for a period of time, and can be directly washed by water injected from the flue cleaning port 30 or washed and cleaned by tap water after being taken out.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to make the description as a whole, and the embodiments may be suitably combined to form other embodiments as will be apparent to those skilled in the art.