CN207438566U

CN207438566U - A kind of new combustion stove

Info

Publication number: CN207438566U
Application number: CN201721398206.XU
Authority: CN
Inventors: 李树峰; 刘洪义; 姚力强; 李媛; 任永华; 王翠荣
Original assignee: WENJIAO BOILER FACTORY CHANGCHUN CITY
Current assignee: WENJIAO BOILER FACTORY CHANGCHUN CITY
Priority date: 2017-10-26
Filing date: 2017-10-26
Publication date: 2018-06-01
Anticipated expiration: 2027-10-26

Abstract

A kind of new combustion stove, including：Furnace body, the first air blower, the second air blower, two thermocouples, fixation and back and forth promote combined grate, PLC electric control gears, secondary air inlet is arranged around the combustion chamber of furnace body, secondary air inlet is connected by secondary wind inleting tube with the second air blower, multiple air inlets three times are also set in the circumferential direction of the smoke outlet of furnace body, each air inlet is connected respectively by blast pipe three times with the second air blower three times；Described one middle part for being arranged on combustion chamber of furnace body of thermocouple, for detecting the temperature of combustion chamber of furnace body, another is positioned close to smoke outlet, for detecting the flue-gas temperature of smoke outlet, the fixation and reciprocal promotion combined grate are equipped with an air inlet, and an air inlet is connected by a blast pipe with the second air blower.The combustion furnace can accurately control temperature and flue gas exit temperature in burner hearth by cloth wind three times, more abundant when making biomass combustion.

Description

A kind of new combustion stove

Technical field

The utility model belongs to biomass semi-gasification field of boilers, and in particular to a kind of horizontal internal combustion is divulged information new three times Biomass half-gasification oven.

Background technology

There are following defects for existing biomass half-gasification oven：First, fuel gas and sky that biomass generates in combustion furnace Gas cannot come into full contact with, and cause to burn insufficient；Second is that the temperature and flue-gas temperature in combustion process in burner hearth are uncontrollable, work as stove In thorax when the temperature is excessively high, the easy slagging of fuel；When flue-gas temperature is excessively high, Cl and Alkali-Metal Na, K that when fuel combustion generates It directly results in rear portion heating surface and alkali metal etching problem occurs；Third, gasification furnace is more using oscillatory type and reciprocating fire grate, shake Dynamic formula fire grate drives fire grate due to needing using connecting component, makes fire grate long lasting for vibration, so zero of installation fire grate Part easily damages, maintenance difficult after damage；It influences to lead to since fuel is stacked on fire grate for a long time using dumping-grate simultaneously Wind prevents fuel from fully burning；It in addition, reciprocating fire grate structure is relative complex, takes up too much space, and can not achieve automation Control, causes mechanical breakdown to increase, adds the operating cost of equipment.

The content of the invention

The purpose of this utility model is to provide a kind of new combustion stove, and the fuel on the combustion furnace fire grate can fully fire It burns, the fuel gas generated in combustion furnace can also come into full contact with air, and combustion efficiency is good, fuel not slagging.

To achieve the above object, new combustion stove provided by the utility model includes：Furnace body, be arranged on furnace body one side One air blower, the second air blower for being arranged on furnace body top, are arranged on bottom of furnace body at two thermocouples being arranged on furnace body The fixed and reciprocal PLC electric control gears for promoting the entire combustion furnace burning of combined grate, control；Wherein, the one of the furnace body End is equipped with feed inlet, and the feed inlet is connected with feeding mechanism, and the first air inlet, first air inlet are additionally provided on feed inlet Mouth is connected by the first blast pipe with the first air blower；It is set on the side wall of the furnace body there are two burner is seen, each sees burner On be respectively equipped with the second air inlet, second air inlet is connected by the second blast pipe with the first air blower；In the furnace body At least two secondary air inlets are arranged around combustion chamber, the secondary air inlet is connected by secondary wind inleting tube and the second air blower It connects；In the smoke outlet of the furnace body, i.e., the position being connected with heat exchange pot is equipped with flange, the flange be used for by heat exchange pot with Furnace body links together；Also be evenly equipped with multiple air inlets three times in the circumferential direction of the smoke outlet of furnace body, each three times into Air port is connected respectively by blast pipe three times with the second air blower；Described one middle part for being arranged on combustion chamber of furnace body of thermocouple, For detecting the temperature of combustion chamber of furnace body, the maximum temperature of combustion chamber of furnace body is controlled to be no more than 1000-1200 DEG C, another setting Close to smoke outlet, for detecting the flue-gas temperature in exit, general control flue-gas temperature is below 850 DEG C, for adopting With the high stalk biomass fuel of alkali metal content, flue gas exit temperature is controlled at 700-750 DEG C, ensures rear portion heating surface not Generation alkali metal corrodes；The fixation and reciprocal promotion combined grate are equipped with an air inlet, and an air inlet leads to It crosses a blast pipe to be connected with the second air blower, oxygen is provided for the fuel on fire grate by the second air blower, fill its burning Point；First blast pipe, the second blast pipe, secondary wind inleting tube, are respectively equipped with adjusting on blast pipe at blast pipe three times Valve, the regulating valve are used for controlling intake；The PLC electric control gears and feed mechanism, the first air blower, the second air blower, Regulating valve, thermocouple electrical connection, for feeding situation and the temperature detected according to thermocouple to be controlled to control intake.

As the preferred of the utility model, the fixation and reciprocal promotion combined grate include：Babinet is arranged on babinet Interior fixed grate stent, the fixed grate being arranged on fixed grate stent, the reciprocal promotion being arranged on above fixed grate The chain turbine of component, the chain that two driving motors outside the enclosure are set, are connected with reciprocal pushing component and chain connection Structure is arranged on reciprocal pushing component one end is electrically connected with PLC electric control gears in babinet four stroke contact switch, is arranged on case The internal and ash discharge slot below fixed grate, the spiral-type slag eliminator being arranged in ash discharge slot；Wherein, the babinet is opened for top The structure of mouth, babinet are arranged on the lower section of furnace body combustion chamber, and the one side of babinet processes once air inlet, described once to enter the wind Mouth is connected by a blast pipe with the second air blower；The knot that the top of the fixed grate stent is distributed for two layers one-tenth ladder Structure, the top of every layer of furnace grate support are respectively arranged with fixed grate, and two adjacent fixed grates is made also to be distributed in ladder；It is described solid Determine to be machined with multiple ventilation holes on fire grate；Two driving motors are connected with PLC electric control gears, the output shaft of driving motor On be all provided with there are two sprocket wheel, be respectively equipped with chain on each sprocket wheel, chain is separately fixed at through chain-wheel mechanism both ends and back and forth pushes away On dynamic component, chain movement is driven by driving motor, so as to which reciprocal pushing component be driven to move back and forth；Four strokes It is connected in contact switch there are two stroke contact switch by connecting line with reciprocal pushing component, other two stroke contact switch One high and one low during installation, high stroke contact switch for being contacted with high reciprocal pushing component, use by low stroke contact switch It is contacted in low reciprocal pushing component；Two stroke contact switch of reciprocal pushing component one end are independently arranged at for limiting The displacement that reciprocal pushing component moves backward；Two stroke contact switch being connected by connecting line with reciprocal pushing component are used for The displacement that reciprocal pushing component moves forward is limited, the time of reciprocal pushing component reciprocating motion is controlled by PLC electric control gears Interval；The ash discharge slot is arranged on the lower section of minimum fixed grate, and the fuel and lime-ash on every layer of fixed grate pass through reciprocal Pushing component is successively pushed on minimum fixed grate, then the reciprocal pushing component by being arranged on minimum fixed grate Lime-ash is pushed in ash discharge slot；The spiral-type slag eliminator is used to the lime-ash in ash discharge slot being discharged to outside babinet.

As the further preferred of the utility model, the ventilation hole be " funnel type ", the reciprocal pushing component be by Multiple round steel are welded with the transverse slat for being arranged on round steel both ends, and reciprocal pushing component is set close to one end of stroke contact switch There is baffle, touch the transmission of stroke contact switch realization signal in reciprocatory movement by baffle.

As the utility model still more preferably, the spiral-type slag eliminator can also be electrically connected with PLC electric control gears, By PLC electric control gears spiral-type slag eliminator is controlled to work.

Fixed grate described in the utility model is made of multiple small fire grate units, and every piece small fire grate unit is standard Part so in installation process is actually used, facilitates installation；The end of the minimum fixed grate can also be equipped with inclined lead Lime-ash is discharged in ash discharge slot by hawk, admittance hawk.

The advantages of the utility model and good effect：

（1）Its is simple in structure for combustion furnace provided by the utility model, and install compact, floor space is small, entire combustion furnace The operations such as feeding, ash discharge can be manipulated by PLC electric control gears, easy to use；Meanwhile by installing thermoelectricity in furnace body Temperature and flue-gas temperature in even next moment monitoring burner hearth, make more abundant, the not slagging of combustion furnace burning, and keep from heat face hair The phenomenon that raw alkali metal corrosion.

（2）The utility model carries out cloth wind three times on combustion furnace, once enters the wind to fixed and reciprocating fire grate, ensures stove Fuel on row can fully burn, not slagging；Secondary wind distribution fills its fuel gas generated with biomass inside burner hearth Divide mixing, fully burn in burner hearth；Cloth wind controls flue-gas temperature by controlling air quantity, avoids in smoke outlet three times Flue gas is excessively high, and alkali metal corrosion occurs；Meanwhile air inlet is set respectively in feed inlet and sight burner, by constantly to furnace body Interior blowing makes charging safe, and furnace interior combustion case is high-visible, convenient for grasping burner hearth internal-combustion situation.

（3）The utility model is simple in structure using fixed and reciprocating combined fire grate, easy to use, fixed grate by In using funnel type ventilation opening, ventilation effect is good；Meanwhile can the combustion on fire grate be made by PLC electric control gear controlled wind speeds Material burning is abundant, reduces the slagging on fixed grate.

（4）The fixed grate that the utility model uses due to using multiple small fire grate units compositions, make fire grate transport and Field-mounted process is more convenient.Meanwhile the combustion furnace can pass through PLC electric control gears according to actual use situation, fuel conditions The reciprocal of reciprocal pushing component is adjusted in time and promotes the time, avoids damage parts.

Description of the drawings

Fig. 1 is the structure diagram of the utility model combustion furnace.

Fig. 2 is the axial sectional view of the utility model combustion chamber of furnace body part.

Fig. 3 is the axial sectional view of the utility model furnace body smoke outlet part.

Fig. 4 is the structure diagram that combined grate was fixed and back and forth promoted to the utility model.

Fig. 5 is the front view of the utility model fixed grate.

Fig. 6 is the sectional view of the utility model fixed grate.

Specific embodiment

It is right below in conjunction with the accompanying drawings to make the clear the technical solution of the utility model of those skilled in the art and its advantage The utility model further illustrates, but is not used to limit the scope of protection of the utility model.

Refering to Fig. 1 to Fig. 3, combustion furnace provided by the utility model includes：Furnace body 1, the first drum for being arranged on furnace body one side Wind turbine 2, the second air blower 3 for being arranged on furnace body top, are arranged on bottom of furnace body at two thermocouples 4 being arranged on furnace body The fixed and reciprocal PLC electric control gears for promoting the entire combustion furnace burning of combined grate 5, control；Wherein, in the furnace body 1 One end is equipped with feed inlet 11, and the feed inlet 11 is connected with feeding mechanism, and the first air inlet is additionally provided on feed inlet（It does not mark Note）, first air inlet is connected by the first blast pipe 12 with the first air blower 2；It tilts and sets on the side wall of the furnace body Two sight burners 13 are put, each see is respectively equipped with the second air inlet on burner（It is unmarked）, second air inlet passes through second Blast pipe 14 is connected with the first air blower 2；At least two secondary air inlets are arranged around the combustion chamber of the furnace body 15 151, the secondary air inlet is connected by secondary wind inleting tube with the second air blower 3；In the smoke outlet 16 of the furnace body, i.e., The position being connected with heat exchange pot is equipped with flange 6, and the flange 6 is used to link together heat exchange pot and furnace body；In the cigarette of furnace body 1 The circumferential direction of gas outlet 16 is also evenly equipped with multiple air inlet 161 three times, each three times air inlet respectively by entering the wind three times Pipe 17 is connected with the second air blower 3；Described 4 one middle parts for being arranged on combustion chamber of furnace body 15 of thermocouple, for detecting furnace body combustion The temperature of room is burnt, the maximum temperature of combustion chamber of furnace body is controlled to be no more than 1000-1200 DEG C, another is positioned close to exhanst gas outlet Place, for detecting the flue-gas temperature in exit, general control flue-gas temperature is below 850 DEG C, for high using alkali metal content Stalk biomass fuel, flue gas exit temperature control at 700-750 DEG C, ensure rear portion heating surface do not occur alkali metal corruption Erosion；The fixation and it is reciprocal combined grate 5 is promoted to be equipped with an air inlet 511, an air inlet by once into Air hose 18 is connected with the second air blower 3, and oxygen is provided for the fuel on fire grate by the second air blower 3, makes its burning abundant；Institute It states the first blast pipe, the second blast pipe, a blast pipe, secondary wind inleting tube, be respectively equipped with regulating valve 7, institute on blast pipe three times Regulating valve 7 is stated to be used for controlling intake；The PLC electric control gears and feed mechanism, the first air blower, the second air blower, adjusting Valve, thermocouple electrical connection, for feeding situation and the temperature detected according to thermocouple to be controlled to control intake.

Refering to Fig. 4 to Fig. 6, the fixation and reciprocal promotion combined grate 5 include：Babinet 51, to be arranged on case in vivo Fixed grate stent 52, the fixed grate 53 being arranged on fixed grate stent, the reciprocal promotion being arranged on above fixed grate The chain of component 54, the chain 56 that two driving motors 55 outside the enclosure are set, are connected with reciprocal pushing component and chain connection Wheel mechanism 57, be arranged on reciprocal pushing component one end is electrically connected with PLC electric control gears in babinet four stroke contact switch 58, It is arranged in babinet and the ash discharge slot 59 below fixed grate, the spiral-type slag eliminator 510 that is arranged in ash discharge slot；Wherein, institute Babinet 51 is stated as open-topped structure, babinet 51 is arranged on the lower section of combustion chamber of furnace body 15, and the one side processing of babinet is once Air inlet 511, an air inlet 511 are connected by a blast pipe with the second air blower；The fixed grate stent 52 Top be the structure of two layers one-tenth ladder distribution, the top of every layer of furnace grate support is respectively arranged with fixed grate 53, makes adjacent Two fixed grates are also distributed in ladder；Multiple ventilation holes 531 are machined on the fixed grate；Two driving motors 55 It is connected, is all provided on the output shaft of driving motor there are two sprocket wheel with PLC electric control gears, chain 56 is respectively equipped on each sprocket wheel, Chain is separately fixed at through chain-wheel mechanism both ends on reciprocal pushing component 54, and chain movement is driven by driving motor, so as to Reciprocal pushing component is driven to move back and forth；Pass through connection there are two stroke contact switch in four stroke contact switch 58 Line 581 is connected with reciprocal pushing component 54, other two stroke contact switch stroke contact switch one high and one low, high when installing For being contacted with high reciprocal pushing component, low stroke contact switch is used to contact with low reciprocal pushing component；The company The length of wiring 581 is set according to the distance of reciprocating motion, is independently arranged at two rows of reciprocal 54 one end of pushing component Journey contact switch is opened for limiting the displacement that reciprocal pushing component moves backward when reciprocal pushing component 54 touches stroke contact Pass opens 58, and stroke contact switch is opened is transmitted to PLC electric control gears by inductive signal, and PLC electric control gears control driving motor 55 stops Work；Two stroke contact switch being connected by connecting line 581 with reciprocal pushing component 54 are used to limit reciprocal pushing component The displacement of forward movement can pull connecting line 581, the connecting line 581 after reciprocal pushing component moves forward certain distance Stroke contact switch is pulled to open, stroke contact switch is opened is transmitted to PLC electric control gears by inductive signal, and the control of PLC electric control gears is driven Dynamic motor is stopped, and can control what reciprocal pushing component moved back and forth by PLC electric control gears in actual use Time interval；The ash discharge slot 59 is arranged on the lower section of minimum fixed grate, and the fuel and lime-ash on every layer of fixed grate lead to Reciprocal pushing component is crossed successively to be pushed on minimum fixed grate, then by being arranged on back and forth pushing away on minimum fixed grate Lime-ash is pushed in ash discharge slot by dynamic component；The spiral-type slag eliminator 510 is used to the lime-ash in ash discharge slot being discharged to outside babinet.

Ventilation hole 531 described in the utility model is " funnel type ", i.e. the wide-mouth portion of ventilation hole 531 is set downward, slot Portion is set upward；The reciprocal pushing component 54 be by multiple round steel 541 and be arranged on round steel both ends transverse slat 542 weld and Into reciprocal pushing component 54 is being equipped with baffle 543 close to one end of stroke contact switch 58, passes through baffle in reciprocatory movement 543 touching stroke contact switch realize the transmission of signal.

Spiral-type slag eliminator described in the utility model can be electrically connected with PLC electric control gears, be controlled by PLC electric control gears Spiral-type slag eliminator and feed mechanism work.

Fixed grate described in the utility model is made of multiple small fire grate units, and every piece small fire grate unit is standard Part so in installation process is actually used, facilitates installation；The end of the minimum fixed grate can also be equipped with inclined lead Lime-ash is discharged in ash discharge slot by hawk 512, admittance hawk 512.

Claims

1. a kind of new combustion stove, it is characterised in that：Including：Furnace body, the first air blower for being arranged on furnace body one side are arranged on stove Second air blower on body top, two thermocouples being arranged on furnace body, the fixation for being arranged on bottom of furnace body and reciprocal promotion group Box-like fire grate, the PLC electric control gears of the entire combustion furnace burning of control；Wherein, feed inlet is equipped in one end of the furnace body, it is described Feed inlet is connected with feeding mechanism, and the first air inlet is additionally provided on feed inlet, and first air inlet passes through the first blast pipe It is connected with the first air blower；Set on the side wall of the furnace body there are two seeing burner, it is each see be respectively equipped on burner second into Air port, second air inlet are connected by the second blast pipe with the first air blower；It is arranged at least around combustion chamber of furnace body Two secondary air inlets, the secondary air inlet are connected by secondary wind inleting tube with the second air blower；In the flue gas of the furnace body Exit is equipped with flange, and the flange is used to link together heat exchange pot and furnace body；In the circumferential direction of the smoke outlet of furnace body Direction is also evenly equipped with multiple air inlets three times, and each air inlet is connected respectively by blast pipe three times with the second air blower three times； Described one middle part for being arranged on combustion chamber of furnace body of thermocouple, for detecting the temperature of combustion chamber of furnace body, another, which is arranged on, leans on Nearly smoke outlet, for detecting the flue-gas temperature of smoke outlet；The fixation and reciprocal promotion combined grate are equipped with Air inlet, an air inlet are connected by a blast pipe with the second air blower, are fire grate by the second air blower On fuel provide oxygen；First blast pipe, the second blast pipe, a blast pipe, secondary wind inleting tube, three times on blast pipe Regulating valve is respectively equipped with, the regulating valve is used for controlling intake；The PLC electric control gears and feed mechanism, the first air blower, Second air blower, regulating valve, thermocouple electrical connection, for control feeding situation and according to thermocouple detect temperature control into Air quantity.

2. a kind of new combustion stove according to claim 1, it is characterised in that：The fixation and reciprocal promotion combined type stove Row includes：Babinet is arranged on the in vivo fixed grate stent of case, the fixed grate being arranged on fixed grate stent, is arranged on Reciprocal pushing component above fixed grate, the chain that two driving motors outside the enclosure are set, are connected with reciprocal pushing component Item, with the chain-wheel mechanism of chain connection, be arranged on that reciprocal pushing component one end is electrically connected with PLC electric control gears in babinet four Stroke contact switch is arranged in babinet and the ash discharge slot below fixed grate, the spiral-type slag eliminator that is arranged in ash discharge slot； Wherein, the babinet is open-topped structure, and babinet is arranged on the lower section of furnace body combustion chamber, and the one side of babinet is machined with one Secondary air inlet, an air inlet are connected by a blast pipe with the second air blower；The top of the fixed grate stent For the structure of two layers one-tenth ladder distribution, the top of every layer of furnace grate support is respectively arranged with fixed grate, makes two adjacent stationary furnaces Row is also distributed in ladder；Multiple ventilation holes are machined on the fixed grate；Two driving motors and PLC electric control gears Connection is all provided on the output shaft of driving motor there are two sprocket wheel, is respectively equipped with chain on each sprocket wheel, chain passes through chain-wheel mechanism Both ends are separately fixed on reciprocal pushing component, chain movement are driven by driving motor, so as to drive reciprocal pushing component past Multiple movement；Connected in four stroke contact switch there are two stroke contact switch by connecting line and reciprocal pushing component It connects, other two stroke contact switch is one high and one low when installing, and high stroke contact switch is used for and high reciprocal pushing component Contact, low stroke contact switch are used to contact with low reciprocal pushing component；It is independently arranged at reciprocal pushing component one end Two stroke contact switch are used to limit the displacement that reciprocal pushing component moves backward；Connected by connecting line and reciprocal pushing component The two stroke contact switch connect are used to limit the displacement that reciprocal pushing component moves forward, and are controlled by PLC electric control gears past The time interval that multiple pushing component moves back and forth；The ash discharge slot is arranged on the lower section of minimum fixed grate, every layer of stationary furnace Fuel and lime-ash on row are successively pushed to by reciprocal pushing component on minimum fixed grate, then minimum by being arranged on Lime-ash is pushed in ash discharge slot by the reciprocal pushing component on fixed grate；The spiral-type slag eliminator is used for the ash in ash discharge slot Slag is discharged to outside babinet.

3. a kind of new combustion stove according to claim 2, it is characterised in that：The ventilation hole is " funnel type ", described Reciprocal pushing component is to be welded by multiple round steel with the transverse slat for being arranged on round steel both ends, and reciprocal pushing component is close to stroke One end of contact switch is equipped with baffle, touches the transmission of stroke contact switch realization signal in reciprocatory movement by baffle.

4. a kind of new combustion stove according to claim 2, it is characterised in that：The spiral-type slag eliminator and the automatically controlled dresses of PLC Electrical connection is put, by PLC electric control gears spiral-type slag eliminator is controlled to work.

5. a kind of new combustion stove according to claim 2, it is characterised in that：The fixed grate is by multiple ports It arranges unit to form, every piece small fire grate unit is standard component；The end of the minimum fixed grate be additionally provided with it is inclined lead hawk, Lime-ash is discharged in ash discharge slot by admittance hawk.