CN201630195U - Energy-saving high-efficiency grain drier - Google Patents

Energy-saving high-efficiency grain drier Download PDF

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Publication number
CN201630195U
CN201630195U CN2010201104170U CN201020110417U CN201630195U CN 201630195 U CN201630195 U CN 201630195U CN 2010201104170 U CN2010201104170 U CN 2010201104170U CN 201020110417 U CN201020110417 U CN 201020110417U CN 201630195 U CN201630195 U CN 201630195U
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CN
China
Prior art keywords
air
drying tower
energy
heat
fire grate
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Application number
CN2010201104170U
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Chinese (zh)
Inventor
杨玉堂
杨振宇
何亚元
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开原市凯尔有限公司
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Priority to CN2010201104170U priority Critical patent/CN201630195U/en
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Publication of CN201630195U publication Critical patent/CN201630195U/en

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    • Y02A40/95
    • Y02P60/853

Abstract

The utility model relates to an energy-saving high-efficiency grain drier, comprising a drying tower, a feeding device, a hot air stove, an air cooler, an angular air duct and a grain discharging device; the energy-saving high-efficiency grain drier has the technical points that: at least three layers of angular air ducts are uniformly distributed in all working sections of the drying tower, the angular air duct at the lowest layer penetrates through the side wall of the drying tower, the angular air duct at the lowest layer is vertical to the angular air duct at the upper side, the air inlets of the two adjacent angular air ducts at the upper layer are respectively arranged at two sides of the drying tower and are connected with a ventilating duct, a hot air inlet of the ventilating duct is connected with the hot air stove, and a cooled air inlet thereof is connected with the air cooler; a flue gas dedusting purification device is arranged at the lower pat of a heat exchanger in the hot air stove, the flue gas dedusting purification device is communicated with a glue gas recovery chamber, a heat-insulating wall is arranged in the stove body at the upper side of the fire grate, close to a stove door, the heat-insulating wall is connected with a heat-conducting plate, a back flow flue is arranged between the bottom part of the flue gas fire grate and the glue gas recovery chamber, and the fire grate is communicated with a blasting inlet in the stove body; the energy-saving high-efficiency grain drier has the advantages of high grain drying efficiency, good quality, small volume, environmental-protection and energy-saving and the like.

Description

Energy-efficient grain dryer

Technical field

The utility model belongs to the grain drying equipment technical field, specifically a kind of energy-efficient grain dryer.

Background technology

Drying tower in the existing grain drying equipment mainly contains two types: 1, horn shape air bath type drying tower, grain is piled up the crack between adjacent air drain, heat (cold) air-flow flows into from air drain, air-flow enters the grain layer from the air drain under shed, the heating of finishing grain (cooling) is anhydrated, the air drain layering here is distributed in the drying tower, when tower body is made up of inside and outside double-layer structure, air inlet is arranged in the inside and outside interlayer, barge board is established at relative grain layer position in the middle of interlayer, the purpose of this barge board is the gas channeling upper strata air drain layer that lower floor's air drain laminar flow is gone out, the snakelike transmission of class from the bottom to top of gas flow between the air drain layer, this structure causes the temperature of hot gas to lower gradually from the bottom to top, and drying effect is inevitable uneven; When tower body was single layer structure, the drying tower center was provided with warm-air pipe, and this warm-air pipe is ventilated to every layer of air drain, and hot gas is by mind-set tower both sides diffusion in the tower, though this structure makes the interior temperature of heated grain of tower average, blast is bigger.2, screen cloth pillar drying tower, tower body is that inside and outside two layer screen net forms, grain is piled up the whereabouts in interlayer, heat (cold) air-flow passes outer screen cloth by screen cloth in the percolation in the tower through the grain layer and discharges, the heating of finishing grain (cooling) is anhydrated, this structure is general huger, and consumptive material is more, cost of manufacture is high.

And the flue gas that hot-blast stove produces in the existing grain drying equipment does not generally make full use of, and causes the waste of heat energy and to the pollution of environment, even flue gas is recovered utilization, also only be transported in the drying tower required to replenish drying grain.For China the Northeast cold winter when using grain drying equipment, outer temperature is low, air humidity is generally 30~40%, because traditional structure grain drying equipment, the simple hot blast temperature that is lifted into tower, the heated-air drying grain time that humidity is high, long coal consumption was big, cold coal internal-external temperature difference when entering fire grate is big simultaneously, keeps furnace temperature and consumes energy higher naturally.

Summary of the invention

The purpose of this utility model provides a kind of energy-efficient grain dryer of the hot-blast stove of fully recycling with new-type horn shape air bath type drying tower and flue gas.

The purpose of this utility model is achieved in that it includes by grain storage section, the oven dry section, delay section, the drying tower that cooling section is formed, the drying tower feed arrangement, hot-blast stove, air-cooler, be evenly equipped with the horn shape air drain that layering is provided with in the drying tower, drying tower bottom delivery device, it is characterized in that: uniformly at least in each workshop section of drying tower be provided with three layers of horn shape air drain, wherein undermost horn shape air drain runs through the drying tower sidewall in each workshop section, undermost horn shape air drain is vertical with the horn shape air drain of its upside in each workshop section, the inlet end of undermost horn shape air drain upside adjacent two layers horn shape air drain is connected in the drying tower both sides and with ventilation shaft respectively in each workshop section, and the hot-wind inlet of this ventilation shaft is connected with hot-blast stove, cold air inlet links to each other with air-cooler; Described hot-blast stove includes body of heater, fire grate, coal inlet, coal feeding bucket, ashpit, heat exchanger, air-heater, the heat exchanger bottom is provided with flue-gas dust removal and purification device, flue-gas dust removal and purification device reclaims the chamber with flue gas and is communicated with, be provided with insulated wall at the fire grate upside near in the body of heater of fire door, insulated wall also is connected with heat-conducting plate, reclaim the backflow flue that is provided with band air quantity adjusting rod between the chamber in flue gas fire grate bottom and flue gas, the fire grate blast entrance interior with being arranged on body of heater is communicated with.

Described feed arrangement comprises conveyer, elementary elevator, receiving sieve and two-stage hoisting machine, conveyer blanking end is connected with elementary elevator charging aperture, elementary elevator feed opening is connected with the receiving sieve charging aperture, and the feed opening of receiving sieve is connected with the two-stage hoisting machine inlet capable.

Described delivery device is four impeller mechanism displacement devices.

Described heat-conducting plate is metallic plate or heat conduction brick.

On heat-conducting plate and heat-conducting plate upper furnace, be evenly equipped with guide plate.

Be provided with temperature sensor near in the hot-blast stove of heat exchanger.

Also be provided with the ash discharge guide plate at the fire grate downside.

Also be provided with air preheating chamber between blast entrance and the fire grate.

Each workshop section's orlop horn shape air drain of the utility model is the humidity discharging layer, because this horn shape air drain runs through the drying tower sidewall, so only depend on inner blast and natural wind as power during humidity discharging, need not actuating unit and drives; The inlet end of undermost horn shape air drain upside adjacent two layers horn shape air drain is connected in the drying tower both sides and with ventilation shaft respectively in each workshop section, so just make in each workshop section the above adjacent two layers horn shape of undermost horn shape air drain air drain airintake direction in opposite directions, and be a side direction opposite side by drying tower, to the diffusion of grain layer, its drying effect is good, blast is low from horn shape air drain open lower side for the gas that enters; The heated dry air that enters drying tower makes full use of the energy by forming through the hot-air of heat exchanger heat exchange and the air that heats between heat-conducting plate and body of heater, the humidity of this heated dry air can reach 5~10%; Because the recycling of flue gas significantly reduces the exhaust smoke level of complete equipment; be approximately 30%~50% of normal exhaust smoke level; help environmental protection, the waste heat of flue gas has been saved coal-fired use amount simultaneously, compares the saving fire coal with traditional drying mode and reaches 50% ± 5%.Reduced production cost; Flue gas also carries out preheating to the cold coal that just enters fire grate in the recycling process, can make coal-fired fully burning in fire grate, improves the effect of hot-blast stove.The volume of the utility model drying tower only is 60% of a traditional drying tower, has significantly reduced manufacturing cost.The utility model also possesses advantages such as floor space is little, simple to operate, drying grain efficient high-quality is good.

Description of drawings

Fig. 1 is a broken section structural representation sketch of the present utility model.

Fig. 2 is the left view of Fig. 1;

Fig. 3 be among Fig. 1 hot-blast stove analyse and observe the structure for amplifying schematic diagram.

The utility model is described in further detail by example below in conjunction with accompanying drawing; but following example only is the utility model example wherein; the rights protection scope of not representing the utility model and being limited, rights protection scope of the present utility model is as the criterion with claims.

The specific embodiment

Shown in Fig. 1-3, primary structure of the present utility model includes by grain storage section, the oven dry section, delay section, the drying tower 1 that cooling section is formed, the drying tower feed arrangement, this feed arrangement comprises conveyer 12, elementary elevator 13, receiving sieve 14 and two-stage hoisting machine 15, conveyer 12 blanking ends are connected with elementary elevator 13 charging apertures, elementary elevator 13 feed openings are connected with receiving sieve 14 charging apertures, the feed opening of receiving sieve 14 is connected with two-stage hoisting machine 15 charging apertures, two-stage hoisting machine 15 feed openings are connected with drying tower 1 its top feed mouth, hot-blast stove 6, air-cooler 3, four impeller mechanism delivery devices of drying tower bottom, be evenly equipped with the horn shape air drain that layering is provided with in the drying tower, uniformly in each workshop section of drying tower be provided with three layers of horn shape air drain, wherein undermost horn shape air drain 2 runs through the drying tower sidewall in each workshop section, the horn shape air drain 2a of undermost horn shape air drain 2 and its upside in each workshop section, 2b is vertical, undermost horn shape air drain upside adjacent two layers horn shape air drain 2a in each workshop section, the inlet end of 2b is connected in the drying tower both sides and with ventilation shaft 9 respectively, and the hot-wind inlet 10 of this ventilation shaft is connected with hot-blast stove 6, cold air inlet 11 links to each other with air-cooler 3; Hot-blast stove includes body of heater 17, fire grate 21, coal inlet 24, coal feeding bucket 23, ashpit 25, heat exchanger 16, air-heater 7, heat exchanger 16 bottoms are provided with flue-gas dust removal and purification device 30, flue-gas dust removal and purification device reclaims chamber 29 with flue gas and is communicated with, reclaim the backflow flue that is provided with band air quantity adjusting rod 27 between the chamber 29, the adjusting flue gas air quantity that this air quantity adjusting rod can be in good time according to actual needs in flue gas fire grate bottom and flue gas.The fire grate downside also is connected with air preheating chamber 33, and air preheating chamber 33 blast entrance 32 interior with being arranged on body of heater is communicated with.In order to promote air themperature to 500 ℃, reduce air humidity, to be provided with insulated wall 22 near in the body of heater of fire door at the fire grate upside, insulated wall also is connected with heat-conducting plate 20, the air that enters from coal inlet 24 is heated by furnace temperature between heat-conducting plate and body of heater, in order to make this part air heat abundant, on heat-conducting plate and heat-conducting plate upper furnace, be evenly equipped with guide plate 19, the flowing velocity of air is slowed down.For the ease of the monitoring furnace temperature, be provided with temperature sensor 18 near in the hot-blast stove of heat exchanger.Also be provided with ash discharge guide plate 26 at the fire grate downside, this ash discharge guide plate is higher than the near-end of ashpit with respect to the far-end of ashpit, and is very convenient during the cleaning coal ash.

During work, grain is through conveyer 12, elementary elevator 13, receiving sieve 14 and two-stage hoisting machine 15 enter drying tower 1, grain is piled up in the crack between adjacent horn shape air drain, fire grate transmission fire coal drops on the fire grate from coal feeding bucket 23, enter in the hot-blast furnace body through coal inlet 24, air enters from blast entrance 32, at first pass through air preheating chamber 33 preheatings, required oxygen when portion of air is sent into the fire grate downside for fired coal combustion, the coal-fired flue gas that produces enters in the heat exchanger tube of heat exchanger 16, flue gas in the heat exchanger leads to flue-gas dust removal and purification device 30 downwards, and the flue gas in dedusting and purifying device after the udst separation is introduced flue gas by air-introduced machine 28 and reclaimed chamber 29; Another part air is in the heat exchanger tube outside heat exchange of heat exchanger; The air that is heated by furnace temperature between heat-conducting plate 20 and body of heater 17 and export 5 places at the air of heat exchanger 16 heat exchange at hot-blast stove and mix by pipeline and send into drying tower hot-wind inlet 10 is a hot blast in the ventilation shaft of hot-wind inlet upside.The flue gas that flue gas reclaims in the chamber 29 enters fire grate downside (shown in Fig. 3 arrow) by the backflow flue of being with air quantity adjusting rod 27, for the cold coal that enters fire grate carries out preheating, thereby make coal-fired fully burning, because the inlet end of two-layer horn shape air drain is connected in the drying tower both sides and with ventilation shaft respectively in each workshop section, so this two-layer airintake direction in opposite directions, and be a side direction opposite side by drying tower, the gas that enters spreads to the grain layer from horn shape air drain open lower side, its drying effect is good, blast is low, orlop horn shape air drain runs through the drying tower sidewall, so only depend on inner blast and natural wind as power during humidity discharging.The cooling of being lowered the temperature at drying tower bottom cold air inlet 11 places of grain after drying, drying tower is discharged by four impeller mechanism delivery devices in the cooling back, finishes whole drying process process.In the accompanying drawing 4 is the hot-blast stove chimney in addition, and 8 is the drying tower base, and 31 is balanced valve, discharge capacity by balanced valve control flue gas, the AIR Proportional that is inner flue gas of the stove amount and burning oxygen consumption is a standard not influence coal-fired normal combustion, the least possible discharging flue gas, recycle more.Realized the purpose of this utility model in sum.

Claims (8)

1. energy-efficient grain dryer, it includes by grain storage section, the oven dry section, delay section, the drying tower that cooling section is formed, the drying tower feed arrangement, hot-blast stove, air-cooler, be evenly equipped with the horn shape air drain that layering is provided with in the drying tower, drying tower bottom delivery device, it is characterized in that: uniformly at least in each workshop section of drying tower be provided with three layers of horn shape air drain, wherein undermost horn shape air drain runs through the drying tower sidewall in each workshop section, undermost horn shape air drain is vertical with the horn shape air drain of its upside in each workshop section, the inlet end of undermost horn shape air drain upside adjacent two layers horn shape air drain is connected in the drying tower both sides and with ventilation shaft respectively in each workshop section, and the hot-wind inlet of this ventilation shaft is connected with hot-blast stove, cold air inlet links to each other with air-cooler; Described hot-blast stove includes body of heater, fire grate, coal inlet, coal feeding bucket, ashpit, heat exchanger, air-heater, the heat exchanger bottom is provided with flue-gas dust removal and purification device, flue-gas dust removal and purification device reclaims the chamber with flue gas and is communicated with, be provided with insulated wall at the fire grate upside near in the body of heater of fire door, insulated wall also is connected with heat-conducting plate, reclaim the backflow flue that is provided with band air quantity adjusting rod between the chamber in flue gas fire grate bottom and flue gas, the fire grate blast entrance interior with being arranged on body of heater is communicated with.
2. energy-efficient grain dryer according to claim 1, it is characterized in that: described feed arrangement comprises elementary elevator, receiving sieve and two-stage hoisting machine, conveyer blanking end is connected with elementary elevator charging aperture, elementary elevator feed opening is connected with the receiving sieve charging aperture, and the feed opening of receiving sieve is connected with the two-stage hoisting machine inlet capable.
3. energy-efficient grain dryer according to claim 1 is characterized in that: described delivery device is four impeller mechanism displacement devices.
4. energy-efficient grain dryer according to claim 1 is characterized in that: described heat-conducting plate is metallic plate or heat conduction brick.
5. energy-efficient grain dryer according to claim 1 is characterized in that: be evenly equipped with guide plate on heat-conducting plate and heat-conducting plate upper furnace.
6. energy-efficient grain dryer according to claim 1 is characterized in that: be provided with temperature sensor near in the hot-blast stove of heat exchanger.
7. energy-efficient grain dryer according to claim 1 is characterized in that: also be provided with the ash discharge guide plate at the fire grate downside.
8. energy-efficient grain dryer according to claim 1 is characterized in that: also be provided with air preheating chamber between described blast entrance and the fire grate.
CN2010201104170U 2010-02-09 2010-02-09 Energy-saving high-efficiency grain drier CN201630195U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201104170U CN201630195U (en) 2010-02-09 2010-02-09 Energy-saving high-efficiency grain drier

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Application Number Priority Date Filing Date Title
CN2010201104170U CN201630195U (en) 2010-02-09 2010-02-09 Energy-saving high-efficiency grain drier

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101755903B (en) * 2010-02-09 2012-07-04 开原市凯尔有限公司 Energy-efficient grain dryer
CN104273217A (en) * 2014-10-27 2015-01-14 枝江市鹏达机械有限责任公司 Series heating type counter flow grain dryer
CN105053186A (en) * 2015-08-21 2015-11-18 无锡市海昌机械设备有限公司 Novel grain drying machine
CN105076386A (en) * 2015-08-21 2015-11-25 无锡市海昌机械设备有限公司 Continuous type small-size grain dryer
CN105211281A (en) * 2015-08-21 2016-01-06 无锡市海昌机械设备有限公司 A kind of a whole set of grain drying device
CN105724566A (en) * 2016-03-11 2016-07-06 安徽新生力生物科技有限公司 Grain drying unit
CN108357952A (en) * 2018-01-30 2018-08-03 合肥冠鸿光电科技有限公司 A kind of dry type automatic feeding

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101755903B (en) * 2010-02-09 2012-07-04 开原市凯尔有限公司 Energy-efficient grain dryer
CN104273217A (en) * 2014-10-27 2015-01-14 枝江市鹏达机械有限责任公司 Series heating type counter flow grain dryer
CN105053186A (en) * 2015-08-21 2015-11-18 无锡市海昌机械设备有限公司 Novel grain drying machine
CN105076386A (en) * 2015-08-21 2015-11-25 无锡市海昌机械设备有限公司 Continuous type small-size grain dryer
CN105211281A (en) * 2015-08-21 2016-01-06 无锡市海昌机械设备有限公司 A kind of a whole set of grain drying device
CN105724566A (en) * 2016-03-11 2016-07-06 安徽新生力生物科技有限公司 Grain drying unit
CN108357952A (en) * 2018-01-30 2018-08-03 合肥冠鸿光电科技有限公司 A kind of dry type automatic feeding

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C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20101117

Effective date of abandoning: 20120704