CN105157224A - Biomass energy combustion heat utilization device - Google Patents

Biomass energy combustion heat utilization device Download PDF

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Publication number
CN105157224A
CN105157224A CN201410242221.XA CN201410242221A CN105157224A CN 105157224 A CN105157224 A CN 105157224A CN 201410242221 A CN201410242221 A CN 201410242221A CN 105157224 A CN105157224 A CN 105157224A
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CN
China
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chaff
hot
blower fan
combustion
blast stove
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CN201410242221.XA
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Chinese (zh)
Inventor
杨锴
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安徽金尚机械制造有限公司
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Priority to CN201410242221.XA priority Critical patent/CN105157224A/en
Publication of CN105157224A publication Critical patent/CN105157224A/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation

Abstract

The invention provides a biomass energy combustion heat utilization device which comprises the components of a biomass energy hot-blast stove, a chaff feeding device, an ash discharging device and a hot-blast stove control system. The chaff feeding device is arranged at one side of the biomass energy hot-blast stove. The biomass energy hot-blast stove is connected with the chaff feeding device through a pipe. The ash discharging device is mounted above an ash chamber. The biomass energy hot-blast stove is connected with the ash discharging device through a pipe. According to the biomass energy combustion heat utilization device, a circular vertical combustion chamber is used; and firebricks which can resist a temperature of 1700 DEG C are built in the circular vertical combustion chamber. The combustion chambers of a majority of existing hot-blast stoves are horizontal or square or the inner wall of each hot-blast stove is not provided with a filling refractory material. Furthermore the existing hot-blast stove is not provided with a combustion-facilitating facility except for partial combustion assisting air. The combustion chamber of the biomass energy combustion heat utilization device has advantages of no structure deformation, no combustion dead corner and most complete combustion. Particularly when soft combustion matters such as rice husk are used as the fuel, suspending combustion is realized. Furthermore no smolder and high combustion efficiency are obtained.

Description

A kind of biomass energy burning heat utilization device

Technical field

The present invention relates to hot-blast stove technical field, be specially a kind of biomass energy burning heat utilization device.

Background technology

For grain drying, there is certain defect in some similar hot-blast stoves in the market.

As illustrated in figs. ia and ib, this is the one of existing hot-blast stove, and its combustion chamber is at below square structure or combustion chamber upper arcuate, and the hot-air that burning produces enters in heat-exchange tube, waste gas is discharged from top, and the hot blast after exchange imports corresponding crop dryer by airduct.

As shown in Figure 2 a and 2 b, this is another kind of existing hot-blast stove, and be that heat-exchanger pipeline is horizontally-arranged with the difference of Fig. 1, the hot-air after burning enters heat exchanger from one end that fire door is corresponding.Cold wind through heat-exchange tube, needs crop dryer from entering after the other end is collected from burner hearth one end.

In sum, mainly there is following problem in the structure of these two kinds of hot-blast stoves:

(1) tubing heat exchanger and combustion chamber accumbency, its shortcoming is that heat-exchange tube easily blocks, and affects heat exchanger effectiveness, waste fuel, also frequent because of heat-exchange tube blocking thus reduce heat exchange area, cause and do not reach required expection hot blast temperature.Combustion chamber accumbency, combustion chamber is long and narrow, and combustion chamber height is generally no more than 1000mm, makes the combustion chamber active combustion volume-diminished that combustion space is limited originally, can cause fuel can not active combustion (particularly rice husk, timber, stalk etc.), waste energy.

(2) combustion chamber adopts traditional stacked to burn, and without combustion-supporting air compensation device, causes part of fuel incomplete combustion, containing dense smoke in the tail gas of discharge.

(3) heat exchanger is without clean-up port, or inconvenience cleaning, checks.

(4) high-temperature region without refractory material or refractory material coverage rate too low, cause easily being out of shape in actual use, service life is short.Easily the hidden danger such as fire are caused time serious.

(5) partial design adopts the mode directly adding heat-exchange tube, and the heat-exchange tube of general material directly heats through naked light, easily distortion, explosion, naked light cannot be avoided directly to enter into and dry in wind net, enter in crop dryer, cause grain fire.

(6), in control: function is simple, and automaticity is low, hot blast temperature fluctuating range is large, and the grain quality of drying out is not good enough; Unprotect device, fault-free intelligence stopping function etc.

(7), in the conveying of fuel: structure is simple, amount can perfect adaptation, causes the actual temperature difference to fluctuate excessive, in Grain Drying Process, hot blast temperature fluctuation is excessive, directly can affect Quality of Grain Drying, such as percent cracked rice is too high, and the rice matter produced is matt, produces and cracks rice.

(8) hot-blast stove is not equipped with dust arrester, without completely burning after tail gas not through filter, be directly discharged in air, serious to atmosphere pollution.

Summary of the invention

Technical problem solved by the invention is to provide a kind of biomass energy burning heat utilization device, to solve the problem in above-mentioned background technology.

Technical problem solved by the invention realizes by the following technical solutions: a kind of biomass energy burning heat utilization device, comprise: raw mass-energy hot-blast stove main body, fuel feed device, ashes discharger, control system, described fuel feed device, ashes discharger are arranged on beyond raw mass-energy hot-blast stove main body, raw mass-energy hot-blast stove main body is connected with fuel feed device, ashes discharger by pipeline, and described raw mass-energy hot-blast stove main body comprises combustion chamber, heat exchanger, base, three parts.Combustion chamber and heat exchanger are placed in base top jointly; Described combustion chamber is uprightly placed, and is connected by first elbow with between heat exchanger plate; Pay-off is connected with form of flanges with the feed pipe on combustion chamber; Ash exhauster is connected with form of flanges with the ash discharging hole below base.Be provided with the first benefit blower fan, second in described combustion chamber and mend blower fan, smoke exhaust fan, oxygen supply blower fan, ash discharge valve and ash discharge blower fan.Described storage chaff storehouse is provided with into chaff blower fan, enters chaff valve, storage chaff blower fan and storage chaff valve.By storing up chaff blower fan and storing up chaff valve to storing up the chaff of chaff storehouse interpolation as fuel, the fuel of storage chaff warehousing storage passes through into chaff blower fan and enters chaff valve add fuel in burner hearth, fuel produces heat energy in burner hearth combustion, compare with setting value according to heat outputting wind-warm syndrome angle value in combustion process, control the first benefit blower fan, second and mend blower fan, the 3rd benefit blower fan, oxygen supply extension set, smoke exhaust fan, export constant to reach hot blast.

Described Control System of Airheater, comprises man-machine interface, microcomputer controller, sensor, executing agency's composition.Described man-machine interface is as human-computer dialogue window, and be main operation interface, all operations instruction and operational factor are all input to microcomputer controller inside from this window; Sensor primary responsibility detected temperatures signal, each executing agency status etc.The signal detected all is input in microcomputer controller; Executing agency is mainly motor, blower fan etc. in driving arrangement; Described microcomputer controller, as the brain of whole control system, is responsible for data operation, command reception and transmission.Have multi-signal interface, be connected with the form communicated with man-machine interface, have temperature sensor special purpose interface, sensor is connected with the input signal interface of micro computer, and execution architecture is then connected with output interface.Its working method is mainly divided into two kinds, automatic operation with manually run, manual operation be generally used for ignite, overhaul, operation when maintaining, automatic operation is generally adopted during normal use, need arrange during first use and need hot blast temperature, in automatic operation, temperature sensor device will detect that air outlet hot blast temperature and design temperature compare, and perform corresponding executing agency.4 silicon carbide can be divided into, (setting value-X-setting value+X between flat-temperature zone according to the temperature value designed, maximum temperature value; Explain: X value can be revised); Low-temperature range (< setting value-X); Between high-temperature region (> setting value+X).Superhigh temperature interval (>=highest temperature value); Each executing agency running status is as following table.When air outlet temperature measuring value is in low-temperature range, first mends blower fan, second mends blower fan, oxygenating blower fan, enters chaff blower fan and be in opening; When measuring temperature and being between flat-temperature zone, first mend blower fan, oxygenating blower fan, enter chaff blower fan, be in running status; When measuring temperature and being in the condition of high temperature, first mends blower fan, second mends blower fan, all locates halted state; Smoke exhaust fan in above three kinds of states, enter chaff valve and be all in PID and automatically adjust state in real time.When measure temperature be in superhigh temperature interval time, first mends blower fan, second mends blower fan, oxygenating blower fan, enters chaff blower fan, enters chaff valve and be all in halted state, and smoke exhaust fan is in low-speed run state, and proterctive equipment enters High Temperature state.All devices start and stop have all been controlled automatically by micro computer, and add time delay start and stop function, ensure that hot blast is stable, constant temperature.Input instruction and output instruction signal visualization, as human-computer dialogue window, show, make operator more intuitively understand equipment running status, improve operating accuracy by man-machine interface.Automatic removing dust principle is that micro computer is according to entering chaff installed capacity and the rotating speed automatic imitation calculating husk accumulation amount of feeding, according to the amount of ashes after husk and its burning than the amount calculating ashes in burner hearth, when ashes amount exceedes burner hearth safe capacity, start ash exhauster, ashes in burner hearth are discharged.In like manner, micro computer discharges ashes amount according to ash exhauster capacity and rotating speed analog computation accumulation, when remaining ash quantity in burner hearth and designing reserved on earth, stops ash exhauster running.This equipment electrically comprises open circuit, under-voltage protection; Motor phase shortage, overload, overcurrent protection.When an error occurs, alarm sends sound and light alarm signal immediately, man-machine interface shows fault simultaneously and position occurs, and the contingent reason of fault, the timely handling failure of alert.Micro computer is according to fault executing agency present position, and intelligence stops corresponding executing agency immediately, avoids this fault effects or causes larger accident.

Executing agency Low-temperature range Between flat-temperature zone Between high-temperature region Superhigh temperature is interval Smoke exhaust fan PID runs PID runs PID runs Low-speed running Enter chaff blower fan Start Start Start Stop Enter chaff valve PID runs PID runs PID runs Stop Oxygenating blower fan Start Start Start Stop First mends blower fan Start Start Stop Stop Second mends blower fan Start Stop Stop Stop

(table 1)

The combustion chamber of described hot-blast stove comprises: burner hearth, fire door, upper cover, secondary air channel, feed pipe, ashes agitating device, ash discharging hole, burner hearth outside forms for steel plate is round as a ball, inner block refractory brick, fire door is poured into a mould by fire clay and is formed, and builds with burner hearth and be integrated, and secondary air channel and feed pipe are welded on burner hearth, and in being embedded in and laying bricks, upper cover is positioned on laying bricks of upper furnace, is coated with the thick mud of laying bricks of one deck before placing on laying bricks, and ensures the sealing that upper cover is connected with burner hearth; The a set of agitating device of installation of lower furnace portion, this device is made by special high temperature resistant stainless steel material, can resistance to 1400 degree indeformable, primarily of a main shaft, two flanks composition.Main shaft is by being connected to a reducing motor by chain.Hearth floor has a circular port, and one section of stainless pipe is welded in below, and in burner hearth, ashes are discharged from this mouth.Described first wind-guiding case adopts cambered design, and it is outer cover of steel plate with the outside of shoot door, innerly pours into a mould fire clay material, shoot door and wind-guiding case lid mouth pour into inclined structure, wind-guiding case cover port is inserted in wind-guiding case lid bottom, and places resistance to guncotton in junction, to ensure its sealing.

Described heat exchanger comprises: heat exchange unit, second elbow, expansion chamber, exhaust opening; Heat exchange unit is made up of upper and lower power board, heat-exchange tube, side seal board and cast fire clay, heat-exchange tube and upper and lower power board are welded to connect, and at upper and lower power board upper fire clay, to ensure its sealing and high temperature resistant, ensure that power board and exchanging tube can not temperature distortions.Second elbow, exhaust opening are welded on power board, and expansion chamber welding with on lower power board, and at junction cast fire clay, ensures its sealing.

Described cyclone dust collectors comprise: cyclone body, cone and air inlet and exhaust piper, and are equipped with smoke exhaust fan at blast pipe place, cyclone body and cone junction Flange joint, and by screw lock; Cyclone body is connected with welding manner with air inlet pipe and between cyclone body with blast pipe; Smoke exhaust fan is placed in blast pipe top, and smoke exhaust fan air intake vent is connected with gas exhaust tube flange, screw lock, and smoke exhaust fan air outlet connects smoke discharging pipe.

Described automatic feeder by storing up chaff storehouse, airlock, airlock base, blower fan, airduct form, each components all connects by screw mode, is convenient to dismounting.Airlock mainly controls the amount of feeding storing up chaff in chaff storehouse.By its rotating speed of VFC, chaff is dropped into after in base by airlock, is sent to combustion chamber combustion by the wind-force of blower fan through pipeline.

Described storage chaff device comprises batch turning bucket, airlock, airlock base, blower fan, airduct, cyclone separator composition, batch turning bucket is arranged on above airlock, mounting seat below airlock, base two ends pipe laying, pipeline connecting fan, another side pipeline are connected to the cyclone separator above storage chaff storehouse.Fuel chaff is poured in bucket, at the uniform velocity be sent in base through airlock, the blower fan wind-force installed by one end is blown in pipeline, and pipeline is passed in cyclone separator, chaff is separated owing to certainly focusing in cyclone separator and drops in storage chaff storehouse, and wind is discharged by exhaust outlet.

Compared with public technology, there is following advantage in the present invention:

1. the present invention adopts circular setting combustion chamber, and interior block refractory brick, can resistance to 1700 DEG C of temperature.And the combustion chamber accumbency of existing most hot-blast stove or square or inwall are without filling fire resisting material, except feed system has part combustion air, without other combustion-supporting facilities.This chamber structure of the present invention is indeformable, and without burning dead angle, burning is the most complete, and especially when fuel is the soft comburant suspension combustions such as rice husk, without smouldering phenomenon, efficiency of combustion is high.In addition, combustion chamber is provided with two place's wind-supplying mouths, the setting of this two places wind-supplying mouth mainly makes each corner, combustion chamber all have combustion oxygen, from but the comburant rice husk, stalk or wood fragments bits etc. that suspend can Thorough combustion, avoid phenomenon of smouldering, the summation of mending air quantity and feeding air quantity is slightly less than smoke evacuation air quantity, negative pressure.In addition, combustion chamber is also provided with place's feeding port, effectively mends wind combustion-supporting according to smoke exhaust fan air quantity wind speed to combustion chamber.

2. the combustion chamber in present device and the connection between heat exchanger adopt curved plate shell, and interior castable refractory cast, upper design shoot door, can open cleaning.Arc air channel intensity is high, and the life-span is long, and hot wind flow is smooth and easy, not easily dust stratification, reduces blocking.

3. the heat-exchange tube in present device adopts vertical structure, this structure, and the life-span is long indeformable, and inside pipe wall easy cleaning is thorough, not easily dust stratification.

4. present device is equipped with cyclone dust collector, making combustion product gases by discharging after dust arrester dedusting, meeting the requirement of energy-conserving and environment-protective.

5. present device is easy to operate, and protective device is complete, and each monitor and alarm system makes equipment safety operation.

Accompanying drawing explanation

Fig. 1 a is the construction profile of existing hot-blast stove A.

Fig. 1 b is the Facad structure figure of existing hot-blast stove A.

In figure, 101-burner hearth; 102-heat exchange unit; 103-fire door; 104-hot-blast outlet; 105-discharges fume outlet; The import of 106-cold wind;

Fig. 2 a is the construction profile of existing hot-blast stove B.

Fig. 2 b is the Facad structure figure of existing hot-blast stove B.

In figure, 201-burner hearth; 202-heat exchange unit; 203-fire door; 204-hot-blast outlet; 205-discharges fume outlet; The import of 206-cold wind;

Fig. 3 a is the internal structure schematic diagram of raw mass-energy hot-blast stove of the present invention.

Fig. 3 b is raw mass-energy hot-blast stove high temperature air channel (fume side) circulation schematic diagram of the present invention.

Fig. 3 c is raw mass-energy hot-blast stove cryogenic wind-tunnel (air side) circulation schematic diagram of the present invention.

Fig. 4 is chamber structure schematic diagram of the present invention.

Fig. 5 is top elbow structure schematic diagram.

Fig. 6 is top elbow shoot door structural representation.

Fig. 7 is heat exchange unit superstructure schematic diagram.

Fig. 8 is heat exchange unit substructure schematic diagram.

Fig. 9 is heat exchange unit structural representation.

Figure 10 is heat exchange unit overall structure schematic diagram.

Figure 11 is cyclone dust collector structural representation.

Figure 12 is automatic feeding structural representation.

Figure 13 is the structural representation into chaff device.

Figure 14 is the structural representation into chaff cylinder.

Figure 15 is Control System of Airheater structural representation.

Figure 16 is structural representation of the present invention.

Detailed description of the invention

Object is reached and effect is easy to understand in order to make technological means of the present invention, creation characteristic, workflow, using method, below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

As shown in figure 16, a kind of biomass energy burning heat utilization device, comprise: raw mass-energy hot-blast stove I, ash discharging gear II, enter chaff device III, Control System of Airheater, described enter chaff device III be arranged on raw mass-energy hot-blast stove I side, ash exhauster II is arranged on the opposite side of raw mass-energy hot-blast stove I, is connected between three by pipeline, and Control System of Airheater controls whole system.

As shown in Figure 3, the raw mass-energy hot-blast stove described in this invention mainly comprises the composition such as fire door 301, platform 302, ash exhauster 303, base 304, expansion chamber clean-up port 305, expansion chamber 306, heat exchanger 307, first elbow 308, second elbow 309, maintenance cat ladder 310, top guardrail 311, combustion chamber 312.Fire door 301 and ash exhauster 303 are placed in combustion chamber 312 jointly, build the outer metal solder of refractory material in all adopting; Platform 302 is located at base 304 front, and both adopt split type putting; Expansion chamber clean-up port is arranged on expansion chamber 306 side, adopts the form of welding to connect; First elbow 308, second elbow 309 are all arranged on the top of heat exchanger 307, build refractory material in three adopts, and outer metal adopts flange form bolted; Expansion chamber 306 is arranged on the below of heat exchanger 307, and both adopt flange form bolted; Cat ladder is arranged on housing side, adopts bolt to be connected with framework; Top guardrail 311 is arranged on frame roof, and the same bolt type that adopts connects.

As shown in Figure 4, the combustion chamber of this hot-blast stove by fire door 301, oxygenating pipeline 402, ash discharging hole 403, ash exhauster 404, burner hearth 405, refractory material 406, hot outlets 407, burner hearth lid 408, the 2nd secondary air channel road 410, secondary air channel road 409, first, enter chaff pipeline 411 etc. and form.Fire door 301 outside is welded steel plate housing, inside build refractory material, secondary air channel road 409, oxygenating blower fan 402, first secondary air channel road 410, second, enter chaff pipeline 411 and all adopt on steel-pipe welding and burner hearth 405 tangent plane, and be embedded in burner hearth internal refractories 406, ash discharging hole 403 adopts bottom Plate Welding and burner hearth 405, is inside connected to ash exhauster 404, and ash exhauster 404 adopts special high temperature resistant stainless steel square rod to suppress and forms, ability 1400 degree of high temperature are indeformable, are installed on bottom burner hearth 405.Refractory material 406 is mainly refractory brick and fire-resistant pouring material, and fire-resistant brick in burner hearth 404 inner ring, bottom of combustion chamber and burner hearth lid 408 all adopt fire clay to pour into a mould and form.

In addition, first wind-guiding case (see Fig. 5) adopts cambered design, the outside of itself and shoot door (see Fig. 6) is outer cover of steel plate, inner cast fire clay material, shoot door and wind-guiding case lid mouth pour into inclined structure, wind-guiding case cover port is inserted in wind-guiding case lid bottom, and places resistance to guncotton in junction, to ensure its sealing.

As Fig. 7, shown in Fig. 8, heat-exchange tube in heat exchange unit is equilateral triangle arrangement on end plate, have 12 row exchanging tubes, pipe number is with 13, 12 cross arrangements, exchanging tube is welded on upper and lower power board, vertical placement, 3 regions are divided in upper head plate, A district is first join domain, belong to high-temperature region, therefore in attaching parts, cast fire clay prevents high temperature, B region is the second exchange area, C district is smoke evacuation region, bottom plate divides two regions, D district, two, E district exchange area, spaced intermediate, be independent of each other, upper and lower end plate is all poured into a mould fire clay and is prevented high temperature, on, bottom is equipped with cleaning door, convenient cleaning.

As shown in Fig. 9 a, 9b, heat exchanger by upper power board 901, heat-exchange tube 902, lower power board 903, heat exchange framework 904, expansion chamber 905, side seal board 906, fall ring 907, refractory material 908, furnace roof elbow 909, first elbow 910, second elbow 911, exhaust opening 912, hot-blast outlet 913, down draught case 914 etc. and form, heat-exchange tube framework 904 and upper and lower power board (901,903) be welded to connect, and at upper and lower power board upper fire clay 908, to ensure its sealing and heat-resisting quantity, ensure that power board and exchanging tube can not temperature distortions.First elbow 910, second elbow 911, expansion chamber 905, exhaust opening 912 are all welded on upper and lower power board (901,903), and at junction cast fire clay, ensure its sealing.First elbow is arranged in the position of Fig. 7 A, and second elbow is arranged in the position of Fig. 7 B, and exhaust opening 911 is arranged in Fig. 7 C position, and expansion chamber 905 is positioned at lower power board 903 bottom.2 expansion chamber 905 side plates are all provided with side cleaning door 305, and hot-blast outlet 913, down draught case 914 adopt bolted and framework 904 side.

As shown in figure 11, cyclone dust collectors by revolving the compositions such as body 1101, cone 1102 and air inlet and exhaust piper (1103,1104), and are equipped with smoke exhaust fan 1105 at blast pipe place.Revolve body 1101 and cone 1102 junction Flange joint, and by screw lock; Revolve body 1101 and air inlet pipe 1103 and revolve between body 1101 with blast pipe 1104 and be connected with welding manner; Smoke exhaust fan 1105 is placed in blast pipe 1104 top, and both use Flange joint, screw lock.Run in after smoke exhaust fan 1105 airduct (not marking in figure).

The dust-cleaning principle of above cyclone dust collectors is that dust-contained airflow is rotated, and by means of centrifugal force, grit is separated from air-flow and traps in wall, relends and helps Action of Gravity Field to make grit fall into ash bucket.Its major function removes the solid particle polluter etc. carried in flue gas as far as possible, reaches particle and be separated with flue gas, plays the effect of purifying smoke.

As shown in figure 12, storage chaff device is made up of blower fan 1201, airlock base 1202, blowing tube connector 1203, airlock 1204, storage chaff device hopper 1205, and each components all connects by bolt mode, is convenient to dismounting.After fuel husk pours hopper into, rotate through airlock and make a gift to someone in airlock base, be sent in pipeline by the high pressure positive blower wind-force being installed on airlock base front, pipeline is connected with the cyclone separator 1305 at storage top, chaff storehouse.Husk is separated in cyclone separator with wind-force, and husk falls in storage chaff storehouse owing to certainly focusing on centrifugal action, and wind is then discharged from air outlet above cyclone separator.

As shown in figure 13, chaff device is entered by storing up chaff device (Figure 12), storage chaff storehouse 1303, cyclone separator 1305, entering chaff blower fan 1306, Blowing stopper 1307, airlock base 1308, pipeline etc. and form.Each parts all adopt French bolted, facilitate installation and removal, operation principle is stored up in chaff storehouse temporary for storage chaff device is used for husk burning to be sent to, install in storage chaff storehouse and lack material sensor and completely expect sensor, when storing up chaff storehouse and completely expecting, microcomputer controller stops storage chaff plant running automatically, and when fuel is lower than safety using amount, the prompting of warning system automatic alarm increases storage chaff amount.Storage chaff storehouse bottom design is tapered, and the husk deadweight being convenient to keep in is fallen, and rotates and is sent in airlock base by chaff, then be sent to combustion chamber combustion by the blower fan 1306 of front end by pipeline through airlock.

The operation principle of raw mass-energy hot-blast stove of the present invention is: fuel is sent into behind combustion chamber in burner hearth internal-combustion by airlock, hot-air imports heat-exchange tube (because fire box temperature is higher by smoke exhaust fan, pouring fireproof material in elbow), for making full combustion of fuel, burning required air is provided by benefit wind blower fan, flue gas is discharged via after cyclone dedusting, cold air enters from both up and down preformed hole, forms warm-air supply after the heat that absorption heat-exchange tube distributes after heat exchanger heats.

In addition, the course of work of this raw mass-energy hot-blast stove and function: by the fuel in ignition combustion room, hot-air through combustion heating is introduced heat exchanger by smoke exhaust fan, after heat exchanger absorbs, the tail gas of residue discharges after the dedusting of cyclone room, clean hot-air after heat exchange provides the thermal source needed for grain dry by heat-exchange tube importing crop dryer, hot-blast stove is self-feeding in the course of the work, temperature automatically controlled, and the running of each coupling part has security monitoring warning system.

Raw mass-energy hot-blast stove of the present invention possesses following characteristics.

1. integral frame:

A. the upper and lower cold wind mouth in dead astern enters, and feature fully collects thermal source, particularly goes up cold wind mouth and can reduce main hot-air channel (combustion chamber upper periphery) temperature, increase the service life, and avoids the distortion that generation Yin Gaowen causes

B. ingeniously utilize down draught device below heat exchanger, be designed to expansion chamber, the dust granules at this point sedimentation contained in the tail gas that burning is discharged.Meet environment protection emission requirement.

C. heat exchanger adopts high temperature resistant boiler seamless steel pipe, and thickness reaches 5mm, opens up cleanout up and down, and it is convenient to clean, regularly cleaning heat exchanger inside pipe wall residual combustion thing, can raising heat exchanging efficiency.

D. in high-temperature hot-air passage, all inwalls all build refractory material, guarantee that high-temperature region is indeformable, do not burst, longer service life.

E. the position of feeding and benefit wind is accurately selected, and guarantees that there is abundant combustion oxygen in each corner, combustion chamber, without burning dead angle, makes full combustion of fuel.

F. cold wind trend and spacing 90mm between the internal partition of heat exchanger and shell, and do cold wind import, make whole hot-blast stove outer wall non-scald on hand at work, avoid operating personnel surprisingly to scald

2. on controlling;

Each warning device and export clean hot-air channel smoke detector and guarantee work safety.

The concrete control procedure of raw mass-energy hot-blast stove of the present invention is as follows:

1. from man-machine interface, enter into ignition system, complete in combustion chamber according to igniting flow process and ignite.

2. complete after igniting, enter into automatic picture, whether detected temperatures is suitable for, if inapplicable, the temperature that change is arranged, clicks and automatically start.

3., in automatically running, in temperature rise process, enter chaff valve, smoke exhaust fan performs PID and automatically adjusts.After running a period of time, reach caloric value and consumption poised state, temperature fluctuation curve line-like, fluctuates up and down between ± 1 degree Celsius.Hot blast output temperature is constant, and at this moment, fuel husk consumption, power consumption reach and saves state most.

4. when the husk amount of feeding reaches certain capacity, automatic ash discharge system starts, and the ashes of combustion chamber combustion are discharged certain capacity.Ensure that combustion chamber is within the scope of a safe capacity always.

5. run into fault → alarm in machine run to ring; Warning lamp is bright; Associated executing agency stops (explaining: because may also have fuel in combustion chamber in burning, so part executing agency can not directly shut down, otherwise will cause danger) according to institute's defect content intelligence by man-machine interface display place fault → micro computer

6. operate by step 1 after failture evacuation.

As shown in figure 14, described hot-blast stove ash exhauster, comprise the compositions such as ash discharge blower fan 1401, ash charge pipeline 1402, efficient cyclone separator 1403, airlock 1404, ash silo 1405, ash discharging hole 1406, each parts adopt flange form bolted, be convenient to installing/dismounting, described ash charge pipeline 1402 is connected by pipeline with raw mass-energy hot-blast stove Fig. 3 ash discharging hole 305.Operation principle is, after ash discharge fan starting, all high negative pressure is formed in cyclone separator and pipeline, ashes after burning are drawn in efficient cyclone separator through piping, solid dirt particle is due under the effect of centrifugal force and deadweight, fall into below cyclone separator hypocentrum, airlock is mainly used in the dust in discharge centrum and is sealed by cyclone dust collectors.

As shown in figure 15, described Control System of Airheater, comprise controller, wherein, also comprise instruction signal generator, the described touch display screen making signal generator be provided with touch key-press, the input of described controller receives the command signal of instruction signal generator output, and exports the operation that control signal controls hot-blast stove, because command signal is exported by touch display screen according to the command signal received, make the command signal visualization of output, improve operating accuracy.Wherein, described instruction signal generator also comprises the temperature sensor of the air outlet temperature for detecting hot-blast stove, and the detected value of temperature sensor and the temperature reference value of inner setting to be compared and according to the temperature controller of comparative result output instruction signal, the temperature reference value of this temperature controller can set voluntarily.When command signal is exported by temperature controller, this air-heater is in automatic control state, does not need manual operation, improves the stability of hot-blast stove.Described control signal first is mended blower fan, second for what control hot-blast stove and is mended blower fan, the 3rd and mend blower fan, smoke exhaust fan, enter the operation of chaff valve, aerator, ash discharge valve and ash discharge blower fan; Described for controlling smoke exhaust fan and the control signal of entering chaff valve is input to the first frequency converter and the second frequency converter respectively.When command signal is exported by temperature controller, if the temperature that temperature sensor detects is lower than the reference value set in temperature controller, the first frequency converter full speed running, the second frequency converter continuous firing; If the temperature that temperature sensor detects reaches the reference value of setting in temperature controller, the first frequency converter slow running, the second frequency converter interval work; If the temperature that temperature sensor detects is higher than the reference value set in temperature controller, the first frequency converter and the second frequency converter all out of service; Described controller is Programmable logical controller.More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (8)

1. a biomass energy burning heat utilization device, comprise: give birth to mass-energy hot-blast stove, enter chaff device, ash exhauster, Control System of Airheater, it is characterized in that: described in enter chaff device and be arranged on raw mass-energy hot-blast stove side, raw mass-energy hot-blast stove is connected by pipeline with entering between chaff device, ash exhauster arranges grey shingle, be provided with ash discharge blower fan, cyclone separator, be connected with raw mass-energy hot-blast stove ash hole by pipeline, described raw mass-energy hot-blast stove comprises combustion chamber, heat exchanger, base, pay-off, ash discharging gear, combustion chamber and heat exchanger are placed in base top jointly, and described combustion chamber is uprightly placed, and are connected by first elbow with between heat exchanger plate, pay-off is connected with tube shaped with the feed pipe on combustion chamber, described combustion chamber is provided with the first benefit blower fan, second mends blower fan, smoke exhaust fan, oxygen supply blower fan, described storage chaff storehouse is provided with into entering chaff blower fan, enter chaff valve, storage chaff blower fan and storage chaff valve, the chaff as fuel is added to storage chaff bucket by storage chaff blower fan and storage chaff valve, the fuel that storage chaff bucket stores passes through into chaff blower fan and enters chaff valve to transfer the fuel in burner hearth, fuel adds hot-air in combustion chamber combustion, control first in combustion process and mend blower fan, second mends blower fan, oxygen supply blower fan, smoke exhaust fan, ash discharge valve start and stop or regulate its rotating speed, control the wind-warm syndrome of hot-blast stove air outlet, described Control System of Airheater, comprise microcomputer controller, man-machine interface, sensor, executing agency, described microcomputer controller and man-machine interface adopt the form communicated to be connected, the input of micro computer connects each sensor, the output of micro computer connects each executing agency, all operations instruction and operational factor arrange and are all input to micro computer by man-machine interface, institute of each executing agency running status is fed back to man-machine interface by micro computer simultaneously, and is presented at out with animation form, makes command signal visualization, improves operating accuracy, and the start and stop of each executing agency of hot-blast stove are controlled according to the signal output order received, control hot blast stove system really to reach.
2. a kind of biomass energy burning heat utilization device according to claim 1, is characterized in that: the combustion chamber of described hot-blast stove comprises: burner hearth, fire door, upper cover, secondary air channel, feed pipe, ash discharge valve, ash hole; Burner hearth outside forms for steel plate is round as a ball, inner block refractory brick, fire door is poured into a mould by fire clay and is formed, and build with burner hearth and be integrated, secondary air channel and feed pipe are welded on burner hearth, and in being inserted in and laying bricks, upper cover is positioned on laying bricks of upper furnace, on laying bricks, the resistance to guncotton of one deck is pressed before placing, ensure that the sealing that upper cover is connected with burner hearth, ash discharge valve adopt high temperature resistant special stainless steel square rod compressing, resistance to 1400 degree of high temperature are indeformable, ash hole is installed on burner hearth bottom, adopts form of flanges to be connected with burner hearth.
3. a kind of biomass energy burning heat utilization device according to claim 1, it is characterized in that: described first elbow adopts cambered design, the outside of itself and shoot door is outer cover of steel plate, inner cast fire clay material, shoot door and elbow lid mouth pour into inclined structure, are connected under elbow lid with elbow with hinge format, convenient unlatching, and place resistance to guncotton in junction, to ensure its sealing.
4. a kind of biomass energy burning heat utilization device according to claim 1, it is characterized in that: described heat exchanger comprises: heat exchange unit, the first elbow, expansion chamber, exhaust opening, heat exchange unit is made up of upper and lower power board, heat-exchange tube, side seal board and cast fire clay, heat-exchange tube and upper and lower power board are welded to connect, and at upper and lower power board upper fire clay, to ensure its sealing and heat-resisting quantity, ensure that power board and exchanging tube can not temperature distortions; First elbow, expansion chamber, exhaust opening all with Flange joint on upper and lower power board, and junction cast fire clay, ensure its sealing.
5. a kind of biomass energy burning heat utilization device according to claim 1, it is characterized in that: described cyclone dust collectors comprise: revolve body, cone and air inlet and exhaust piper, and be equipped with Wind Volume smoke exhaust fan at blast pipe place, revolve body and cone junction Flange joint, and be tightened by bolts; Revolve body and air inlet pipe and revolve between body with blast pipe and be connected with welding manner; Smoke exhaust fan is placed in blast pipe top, and both use Flange joint, and bolt-locking, connects stainless steel exhaust duct after smoke exhaust fan.
6. a kind of biomass energy burning heat utilization device according to claim 1, it is characterized in that: described automatic storage chaff device is made up of hopper, airlock, airlock base, blower fan, blowing tube connector, cyclone separator, each components all connects by bolt mode, is convenient to dismounting.
7. a kind of biomass energy burning heat utilization device according to claim 1, it is characterized in that: described in enter chaff device and comprise storage chaff cylinder, enter chaff blower fan, airlock, airlock base, connecting pipe, airlock is arranged on below chaff cylinder, on airlock seat and airlock base, its base is real is square tube, the leading portion of base with enter chaff blower fan and be connected, rear end is connected with connecting pipe; All connections all connect with flange form, and bolted, facilitates installing/dismounting; Entering chaff device operation principle is: chaff is in storage chaff storehouse, drop in airlock by its deadweight, being rotated by airlock drops in the base of below by inner chaff, so the revolution of airlock controls the falling amount of chaff, namely the chaff dropped in airlock base is sent the wind-force of chaff blower fan to enter piping instantaneously and is sent to combustion chamber combustion.
8. a kind of biomass energy burning heat utilization device according to claim 1, it is characterized in that: described ash discharging gear comprises high pressure positive blower, cyclone separator, airlock, connecting pipe, cyclone separator is installed on grey roof portion, cyclone separator feed opening connects airlock, airlock feed opening is inserted in the ash of below, assembling is above cyclone separator, the air intake vent of blower fan and cyclone separator air outlet are with Flange joint, the air outlet of blower fan is connected with pipeline, cyclone separator air intake vent is connected with hot-blast stove ash hole by pipeline, all connections all connect with flange form, bolted, be convenient to install, dismounting.
CN201410242221.XA 2014-05-29 2014-05-29 Biomass energy combustion heat utilization device CN105157224A (en)

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Publication number Priority date Publication date Assignee Title
CN108870737A (en) * 2018-06-26 2018-11-23 安徽谷王烘干机械有限公司 A kind of electric-control system and control method of hot-blast stove

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JP2010101599A (en) * 2008-10-27 2010-05-06 Birumen Kagoshima:Kk Hybrid hot air device
CN102261739A (en) * 2011-06-20 2011-11-30 上海昌浩机电有限公司 Biomass energy hot blast stove
CN103196289A (en) * 2013-04-02 2013-07-10 上海昌浩机电有限公司 Bran feeding device
CN103673299A (en) * 2012-09-20 2014-03-26 上海昌浩机电有限公司 Hot blast stove control system and control method thereof

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Publication number Priority date Publication date Assignee Title
JP2010101599A (en) * 2008-10-27 2010-05-06 Birumen Kagoshima:Kk Hybrid hot air device
CN102261739A (en) * 2011-06-20 2011-11-30 上海昌浩机电有限公司 Biomass energy hot blast stove
CN103673299A (en) * 2012-09-20 2014-03-26 上海昌浩机电有限公司 Hot blast stove control system and control method thereof
CN103196289A (en) * 2013-04-02 2013-07-10 上海昌浩机电有限公司 Bran feeding device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108870737A (en) * 2018-06-26 2018-11-23 安徽谷王烘干机械有限公司 A kind of electric-control system and control method of hot-blast stove

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