CN202709646U - Negative pressure grain drying machine - Google Patents
Negative pressure grain drying machine Download PDFInfo
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- CN202709646U CN202709646U CN 201220288406 CN201220288406U CN202709646U CN 202709646 U CN202709646 U CN 202709646U CN 201220288406 CN201220288406 CN 201220288406 CN 201220288406 U CN201220288406 U CN 201220288406U CN 202709646 U CN202709646 U CN 202709646U
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Abstract
The utility model relates to a negative pressure grain drying machine, belongs to baking and drying facility of agricultural and sideline products and particularly relates to baking and heating equipment in the grain field. A heating furnace is arranged inside a furnace cabinet of the negative pressure grain drying machine, a top cover of the heating furnace is connected with a chimney through the connection with a tubular exchanger, and an air flue gap is arranged between the furnace cabinet and the heating furnace. A negative pressure combustion fan is arranged on the side of the chimney, an air inlet of the heating furnace is arranged on a soot door, a cold air inlet is arranged on the top of the furnace cabinet. A hot air outlet is arranged on a side wall of the lower portion of the furnace cabinet and is connected with the interior of an air distributing chamber of a grain chamber through a blast pipe. A hot-air blower is arranged inside the blast pipe, and the grain chamber is divided into the air distributing chamber at the bottom and a storage chamber at the upper portion through a meshed air distributing plate. A discharge opening is arranged on the side surface of the storage chamber, a feed opening and a return air inlet are arranged on the top portion of the storage chamber, and the return air inlet is connected with the top portion of the furnace chamber through a return duct. The negative pressure grain drying machine utilizes negative pressure secondary combustion, a combustion system and a hot-air system are in negative pressure induced air structure respectively, and burning smoke and hot air are separated, so that energy is saved and discharge of air pollutants is reduced.
Description
Technical field
The utility model provides a kind of green, energy-conservation, efficient, environment-friendly type grain drying equipment, belongs to baking, the drying facility of agricultural byproducts, is specifically related to the baking heating equipment in grain field.
Background technology
Foodstuff drying device is pressed grain and air-flow direction of relative movement, can be divided into the patterns such as crossing current, mixed flow, following current, adverse current and concurrent-countercurrent, mixed adverse current, suitable mixed flow.
The crossing current dryer mostly is column type sieve mesh type or square type sieve mesh type structure, advantage is that manufacturing process is simple, easy for installation, cost is low, high productivity, and shortcoming is that the cereal uniform drying is poor, specific heat consumption is higher, one machine oven dry various types of grain is limited, and baking rear section grain quality difficulty reaches requirement, and inside and outside sieve aperture needs often cleaning.
The many tower structures that rearranged by triangle or five jiaos of boxes staggered (fork) of mixed flow dryer, advantage is that warm-air supply is even, grain moisture content is more even after the baking, specific heat consumption is than crossing current dryer low 5%～15%, required blower fan power is little under the same terms, the drying medium specific consumption is also little, the oven dry grain variety is wide, can dry by the fire grain, can dry by the fire kind again, be convenient to simultaneously cleaning, be difficult for miscegenation, shortcoming is complex structure, and manufacturing cost is slightly high under the same product throughput rate condition, and the sub-fraction cereal precipitation at place, four angles of dryer is partially slow.
The following current dryer mostly is the tower structure that funneling air intake duct combines with horn shape box exhaust duct, it is different from the mixed flow dryer by an air main hot wind supply, but supply with difference or the identical hot blast of part by a plurality of (level) warm-air pipe, its advantage is to use hot blast temperature high, general one-level high temperature section temperature can reach 150～250 ℃, specific heat consumption is low, can guarantee the rear grain quality of baking, the following current dryer has the advantage of falling large moisture content, and can obtain higher productivity ratio, a precipitation range is large during continuous drying, generally can reach 10%～15%, cereal crops and the seed of the large moisture content of the most suitable oven dry.Shortcoming is, complicated structure, and manufacturing cost approaches or a little more than the mixed flow dryer, depth of grain layer is large, and required high pressure positive blower power is large, and price is high.
Pure adverse current dryer is produced and is used seldom, and its most dryer with other air-flow is used in conjunction with, and namely is used for the cooling section of following current or mixed flow dryer, forms concurrent-countercurrent and mixed adverse current dryer.The advantage of adverse current cooling is that nature cold wind can fully be contacted with cereal, can increase cooling velocity, suitably reduces the cooling section height.
The now widely used foodstuff drying device overwhelming majority of China is large-scale drying plant, mainly is applicable to grain processing enterprise and large-scale grain dealer.Announced a kind of Tractable and moveable drum type grain drier such as patent CN200510102052.0, patent CN 93110195.6 has announced a kind of grains drying system.Such foodstuff drying device baking ability is strong, automaticity is high, but complex structure, cost are higher, can't promote the use of in vast grain producing region.
In addition, grain harvest season, because of be subject to the factor affecting such as weather, labour's situation, vast kind of landlord's growing surface is limited in addition, in the urgent need to a kind ofly toast that efficient is high, specific energy consumption is low, wide accommodation, grain drying device that cost is relatively cheap.Although minority enterprise produces small-sized grain drying device, thermal source mostly is greatly electricity, oily, the baking expense is higher, and the equipment that minority is burnt coal limits because of combustion system, and energy consumption is relatively high, is difficult to adapt to the producing region requirement.Announced a kind of Multifunction small grain drier of electricity consumption such as patent CN89221522.4, patent CN99225586.4 has announced a kind of Multifunction small grain drier with coal, patent CN97229629.8 has announced a kind of grain drying device that uses oil or gas, and patent CN01233277.1 has announced a kind of liquefied petroleum gas grain dryer that uses liquefied gas.
Effective guaranteed quality and satisfy excellent properties that food hygiene required, how further to realize energy-saving and environmental protection, how to reduce labour intensity and baking cost, how to reduce equipment cost and make it to promote the use of in vast grain producing region in the grain drying process how, these problems all need to be further improved and solve.
Summary of the invention
The purpose of this utility model provides a kind of negative pressure foodstuff drying device, adopts the negative pressure secondary combustion system, and combustion system and hot-air system all adopt the negative pressure induced wind structure, and combustion product gases separates with hot-air, but energy savings, the Air Pollutant Emission that reduces; Its silo can be realized concurrent-countercurrent, mixed adverse current and the suitable comprehensive drying functions of mixed flow, and drying capacity is strong, and specific energy consumption is low, can guarantee the uniform high performance requirements of grain quality and moisture content.
The realization the technical solution of the utility model is: in stove cabinet inside heating stove is housed, the heating stove top cover is received chimney by connecting pipe heat exchanger, the gap, air channel is arranged between stove cabinet and the heating stove, the other negative pressure combustion fan that is connected to of chimney, the air intake of heating stove is located at cleaning door, the stove cabinet has backed down cool air inlet, stove cabinet lower sides has hot-blast outlet and receives by ajutage in the wind distributing bin of silo, air-heater is installed in the ajutage, silo is divided into the wind distributing bin of bottom and the feed bin on top by the split-wind plate with mesh, the feed bin side is provided with discharge port and the top is provided with dog-house and return air inlet, and return air inlet is received stove cabinet top by backwind tube.
For further energy-conservation, improve drying efficiency, at a stove ancient piece of jade, round, flat and with a hole in its centre, top cover and the heat exchanger outer wall of heating stove bossed fin is set all, the air-vent of negative pressure combustion fan and chimney vertically tangent; The feed bin side is provided with two above discharge ports and moistureproof window.Also taked in addition all directions panel of silo and stove cabinet to be all composite plate with thermal insulation layer.
Operation principle of the present utility model is such: grain to be baked is sent into feed bin from dog-house, after fuel is sent into burner hearth by the heating stove coal filling hole, under the suction function of negative pressure combustion fan, combustion air enters burner hearth from cleaning door and participates in combustion-supporting, after this fuel takes fire in burner hearth, the heat that produces outwards transmits by a stove ancient piece of jade, round, flat and with a hole in its centre and top fin thereof, and the hot flue gas in the heating stove enters heat exchanger and to discharge by chimney behind the outside transferring heat of heat radiation mode.Under the suction function that the air-heater draft forms, cold air enters the air channel by the cool air inlet at stove cabinet top, wash away successively from top to bottom heat exchanger, a stove ancient piece of jade, round, flat and with a hole in its centre and take away the heat that its heat radiation produces, last cold air is heated the formation hot-air, sends into air-heater and provides heat to silo by hot-blast outlet.
The beneficial effects of the utility model are: compare with the traditional grain dryer, the utility model adapt to the cereal kind wide, because of simple in structure, cheap, be widely used in producing region kind landlord and promote the use of.In addition, the utility model is green, energy-conservation, efficient, environment-friendly type grain drying equipment, adopted the negative pressure secondary combustion system, combustion system and hot-air system all adopt the negative pressure induced wind structure, so that combustion product gases thoroughly separates with hot-air, realize the purpose of energy savings, reduction Air Pollutant Emission, raising baking properties, guarantee that simultaneously roast is green, pollution-free.Compare with traditional roasting mode and equipment, the utility model not only effectively energy savings, significantly reduce fruits and vegetables bakings cost, improve the grain drying quality, reduce productive labor intensity, large economy is worth for peasant household creates more, simultaneously, can significantly reduce Air Pollutant Emission, for improving the productive life environment, promoting local environmental protection cause to develop better very soon to make outstanding contributions.This foodstuff drying device takes full advantage of the advantage of crossing current dryer, mixed flow dryer, following current dryer, has at utmost remedied deficiency separately.Easily realize being equipped with energy-conservation, efficient heating equipment and Intelligent Temperature/Humidity Controller, thereby make material flash baking, specific energy consumption declines to a great extent, and guarantees grain quality and the uniform high performance requirements of moisture content.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Each label represents successively among the figure: negative pressure combustion fan 1; Chimney 2; Backwind tube 3; Stove cabinet top 4; Cool air inlet 5; Stove cabinet 6; Heat exchanger 7; Air channel 8; Top cover 9; Heating stove 10; Coal filling hole 11; Cleaning door 12; Air-heater 13; Ajutage 14; Feed bin 15; Discharge port 16; Wind distributing bin 17; Split-wind plate 18; Thermal insulating composite panel 19; Return air inlet 20; Silo top 21; Moistureproof window 22; Dog-house 23.
The specific embodiment
Referring to Fig. 2.Heating stove 10 is housed in stove cabinet 6, be provided with air channel 8 between stove cabinet 6 and the heating stove 10, the top cover 9 of heating stove 6 connects pipe heat exchanger 7, heat exchanger 7 connects chimney 2, the other negative pressure combustion fan 1 that connects on the chimney 2, the air intake of heating stove 6 is located at cleaning door 12, stove cabinet top 4 has cool air inlet 5, stove cabinet 6 lower sides have hot-blast outlet and are connected with ajutage 14, air-heater 13 is installed in the ajutage 14, and silo is with meshed split-wind plate 18 to be divided into up and down two parts, and the bottom is wind distributing bin 17, top is feed bin 15, wind distributing bin 17 1 ends are connected with ajutage 14, and feed bin 15 sides are provided with a plurality of discharge ports 16 and moistureproof window 22, and silo top 21 is provided with dog-house 23 and return air inlet 20, backwind tube 3 one ends are connected with return air inlet 20, and the other end is connected with stove cabinet top 4.
Grain to be baked is sent into feed bin 15 from dog-house 23, after fuel is sent into burner hearth by heating stove 10 coal filling holes 11, under the suction function of negative pressure combustion fan 1, combustion air enters burner hearth from cleaning door 12 and participates in combustion-supporting, after this fuel takes fire in burner hearth, the heat that produces outwards transmits by a stove ancient piece of jade, round, flat and with a hole in its centre and top fin thereof, and the hot flue gas in the heating stove 10 enters heat exchanger 7 and discharges to pass through chimney 2 behind the outside transferring heat of heat radiation mode.Under the suction function that air-heater 13 drafts form, cold air enters air channel 8 by the cool air inlet 5 at stove cabinet top, wash away successively from top to bottom heat exchanger 7, a stove ancient piece of jade, round, flat and with a hole in its centre and take away the heat that its heat radiation produces, last cold air is heated the formation hot-air, sends into air-heater 7 and provides heat to feed bin 15 by hot-blast outlet.
Claims (3)
1. negative pressure foodstuff drying device, it is characterized in that: in stove cabinet inside heating stove is housed, the heating stove top cover is received chimney by connecting pipe heat exchanger, the gap, air channel is arranged between stove cabinet and the heating stove, the other negative pressure combustion fan that is connected to of chimney, the air intake of heating stove is located at cleaning door, the stove cabinet has backed down cool air inlet, stove cabinet lower sides has hot-blast outlet and receives by ajutage in the wind distributing bin of silo, air-heater is installed in the ajutage, silo is divided into the wind distributing bin of bottom and the feed bin on top by the split-wind plate with mesh, and the feed bin side is provided with discharge port and the top is provided with dog-house and return air inlet, and return air inlet is received stove cabinet top by backwind tube.
2. negative pressure foodstuff drying device according to claim 1, it is characterized in that: a stove ancient piece of jade, round, flat and with a hole in its centre, top cover and heat exchanger outer wall at heating stove all arrange bossed fin, the air-vent of negative pressure combustion fan and chimney vertically tangent; The feed bin side is provided with two above discharge ports and moistureproof window.
3. negative pressure foodstuff drying device according to claim 1, it is characterized in that: all directions panel of silo and stove cabinet is all the composite plate with thermal insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220288406 CN202709646U (en) | 2012-06-19 | 2012-06-19 | Negative pressure grain drying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220288406 CN202709646U (en) | 2012-06-19 | 2012-06-19 | Negative pressure grain drying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709646U true CN202709646U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220288406 Expired - Fee Related CN202709646U (en) | 2012-06-19 | 2012-06-19 | Negative pressure grain drying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202709646U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225438A (en) * | 2016-08-29 | 2016-12-14 | 安徽尧龙竹木制品有限公司 | Exempt from carrying formula dual-purpose hot air circulation wool top drying room |
| CN106338183A (en) * | 2016-08-27 | 2017-01-18 | 安徽尧龙竹木制品有限公司 | Carrying-free type semi-finished strip drying room |
| CN109520221A (en) * | 2018-10-10 | 2019-03-26 | 宜宾市江安县庆慧丰农业科技开发有限公司 | A kind of drying system of baking agricultural products |
| CN109916148A (en) * | 2019-04-08 | 2019-06-21 | 山东交通职业学院 | Cropper residual heat drying system |
| CN112728886A (en) * | 2021-01-25 | 2021-04-30 | 安徽燃博智能科技有限公司 | Combined heat exchange type grain dryer with large heat capacity and high drying quality |
-
2012
- 2012-06-19 CN CN 201220288406 patent/CN202709646U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338183A (en) * | 2016-08-27 | 2017-01-18 | 安徽尧龙竹木制品有限公司 | Carrying-free type semi-finished strip drying room |
| CN106338183B (en) * | 2016-08-27 | 2019-05-03 | 安徽尧龙竹木制品有限公司 | Exempt from carrying formula wool top drying chamber |
| CN106225438A (en) * | 2016-08-29 | 2016-12-14 | 安徽尧龙竹木制品有限公司 | Exempt from carrying formula dual-purpose hot air circulation wool top drying room |
| CN109520221A (en) * | 2018-10-10 | 2019-03-26 | 宜宾市江安县庆慧丰农业科技开发有限公司 | A kind of drying system of baking agricultural products |
| CN109916148A (en) * | 2019-04-08 | 2019-06-21 | 山东交通职业学院 | Cropper residual heat drying system |
| CN109916148B (en) * | 2019-04-08 | 2021-06-01 | 山东交通职业学院 | Waste heat drying system of harvester |
| CN112728886A (en) * | 2021-01-25 | 2021-04-30 | 安徽燃博智能科技有限公司 | Combined heat exchange type grain dryer with large heat capacity and high drying quality |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20130619 |