CN202709646U - Negative pressure grain drying machine - Google Patents
Negative pressure grain drying machine Download PDFInfo
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- CN202709646U CN202709646U CN201220288406.0U CN201220288406U CN202709646U CN 202709646 U CN202709646 U CN 202709646U CN 201220288406 U CN201220288406 U CN 201220288406U CN 202709646 U CN202709646 U CN 202709646U
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- 238000001035 drying Methods 0.000 title abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000809 air pollutant Substances 0.000 abstract description 4
- 231100001243 air pollutant Toxicity 0.000 abstract description 4
- 238000009841 combustion method Methods 0.000 abstract description 4
- 239000003546 flue gas Substances 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000003245 coal Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 235000013305 food Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000015173 baked goods and baking mixes Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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Abstract
负压粮食烘干机。本实用新型属于农副产品的烘烤、干燥设施，具体设计一种粮食领域的烘烤供热设备。本装置在炉柜内部装有供热炉，供热炉顶盖通过连接管式换热器接到烟囱，炉柜与供热炉之间有风道间隙，烟囱旁接有负压助燃风机，供热炉的空气入口设在清灰口，炉柜顶开有冷空气入口，炉柜下部侧壁开有热风出口并通过送风管接到粮仓的分风仓内，送风管内安装热风机，粮仓由带网孔的分风板分为底部的分风仓和上部的料仓，料仓侧面设有卸料口而顶部设有投料口及回风口，回风口通过回风管接到炉柜顶部。本实用新型采用负压二次燃烧方式，燃烧系统及热风系统均采用负压引风结构，燃烧烟气与热空气分离，可节约能源、降低大气污染物排放。
Negative pressure grain dryer. The utility model belongs to baking and drying facilities for agricultural and sideline products, and specifically designs a baking and heating equipment in the grain field. The device is equipped with a heating furnace inside the furnace cabinet. The top cover of the heating furnace is connected to the chimney through a connecting tube heat exchanger. There is an air duct gap between the furnace cabinet and the heating furnace. The air inlet of the heating furnace is set at the dust removal port, the top of the furnace cabinet has a cold air inlet, and the side wall of the lower part of the furnace cabinet has a hot air outlet, which is connected to the air distribution bin of the granary through the air supply pipe, and a hot air blower is installed in the air supply pipe The granary is divided into the bottom air distribution bin and the upper silo by the air distribution plate with mesh holes. The side of the silo is equipped with a discharge port and the top is equipped with a feeding port and a return air port. The return air port is connected to the furnace through the return air pipe. cabinet top. The utility model adopts a negative pressure secondary combustion method, and both the combustion system and the hot air system adopt a negative pressure induced air structure, and the combustion flue gas is separated from the hot air, which can save energy and reduce the emission of air pollutants.
Description
技术领域 technical field
本实用新型提供一种绿色、节能、高效、环保型粮食烘烤设备，属于农副产品的烘烤、干燥设施，具体涉及粮食领域的烘烤供热设备。 The utility model provides a green, energy-saving, high-efficiency, and environment-friendly grain baking equipment, which belongs to the baking and drying facilities of agricultural by-products, and specifically relates to baking and heating equipment in the grain field.
背景技术 Background technique
粮食烘干机按粮食与气流相对运动方向，可分为横流、混流、顺流、逆流及顺逆流、混逆流、顺混流等型式。 According to the relative movement direction of grain and airflow, the grain dryer can be divided into cross flow, mixed flow, forward flow, countercurrent and forward and reverse flow, mixed and reverse flow, forward and mixed flow and other types.
横流烘干机多为圆柱型筛孔式或方塔型筛孔式结构，优点是制造工艺简单，安装方便，成本低，生产率高，缺点是谷物干燥均匀性差，单位热耗偏高，一机烘干多种谷物受限，烘后部分粮食品质较难达到要求，内外筛孔需经常清理。 Most of the cross-flow dryers are cylindrical sieve or square tower sieve structure. The advantages are simple manufacturing process, convenient installation, low cost and high productivity. The disadvantages are poor grain drying uniformity and high unit heat consumption. Drying a variety of grains is limited, and the quality of some grains after drying is difficult to meet the requirements, and the internal and external sieve holes need to be cleaned frequently.
混流烘干机多由三角或五角盒交错(叉)排列组成的塔式结构，优点是热风供给均匀，烘后粮食含水率较均匀，单位热耗比横流烘干机低5％～15％，相同条件下所需风机动力小，干燥介质单位消耗量也小，烘干谷物品种广，既能烘粮，又能烘种，同时便于清理，不易混种，缺点是结构复杂，相同生产率条件下制造成本略高，烘干机四个角处的一小部分谷物降水偏慢。 The mixed-flow dryer is mostly a tower structure composed of triangular or pentagonal boxes arranged in a staggered (fork) manner. The advantage is that the hot air is supplied evenly, the moisture content of the grain after drying is relatively uniform, and the unit heat consumption is 5% to 15% lower than that of the cross-flow dryer. Under the same conditions, the required fan power is small, and the unit consumption of drying medium is also small. There are a wide variety of dried grains, which can not only dry grains, but also dry seeds. The manufacturing cost is slightly higher, and the small part of the grain at the four corners of the dryer has a slower precipitation.
顺流烘干机多为漏斗式进气道与角状盒排气道相结合的塔式结构，它不同于混流烘干机由一个主风管供热风，而是由多个(级)热风管供给不同或部分相同的热风，其优点是使用热风温度高，一般一级高温段温度可达150～250℃，单位热耗低，能保证烘后粮食品质，顺流烘干机具有降大水份的优势，并能获得较高的生产率，连续烘干时一次降水幅度大，一般可达10％～15％，最适合烘干大水份的粮食作物和种子。缺点是，结构比较复杂，制造成本接近或略高于混流烘干机，粮层厚度大，所需高压风机功率大，价格高。 Downstream dryers are mostly tower structures that combine funnel-type inlets and angular box exhausts. It is different from mixed-flow dryers that supply hot air from one main air duct, but from multiple (stage) The hot air pipe supplies different or partly the same hot air. The advantage is that the temperature of the hot air is high. Generally, the temperature of the first-level high-temperature section can reach 150-250 ° C. The unit heat consumption is low, which can ensure the quality of the baked grain. The downstream dryer has the advantages of It has the advantage of reducing water content and can obtain higher productivity. During continuous drying, the precipitation at one time is large, generally up to 10% to 15%. It is most suitable for drying food crops and seeds with large water content. The disadvantage is that the structure is relatively complicated, the manufacturing cost is close to or slightly higher than that of the mixed flow dryer, the thickness of the grain layer is large, the power of the high-pressure fan required is large, and the price is high.
纯逆流烘干机生产和使用的很少，它多数与其它气流的烘干机配合使用，即用于顺流或混流烘干机的冷却段，形成顺逆流和混逆流烘干机。逆流冷却的优点是使自然冷风能与谷物充分接触，可增加冷却速度，适当降低冷却段高度。 Pure countercurrent dryers are rarely produced and used, and most of them are used in conjunction with other airflow dryers, that is, used in the cooling section of cocurrent or mixed flow dryers to form cocurrent and countercurrent and mixed countercurrent dryers. The advantage of countercurrent cooling is that the natural cold wind can fully contact the grain, which can increase the cooling speed and reduce the height of the cooling section appropriately.
我国目前广泛使用的粮食烘干机绝大部分均为大型烘干设备，主要适用于粮食加工企业及大型粮食经营户。如专利CN200510102052.0公布了一种可牵引移动滚筒式粮食烘干机，专利CN 93110195.6公布了一种全能利用全净化粮食烘干系统。该类粮食烘干机烘烤能力强、自动化程度高，但结构复杂、造价较高，无法在广大粮产区推广使用。 Most of the grain dryers widely used in our country are large-scale drying equipment, which are mainly suitable for grain processing enterprises and large grain operators. Such as patent CN200510102052.0 has announced a kind of towable mobile drum type grain dryer, and patent CN 93110195.6 has announced a kind of omnipotent utilization full purification grain drying system. This type of grain dryer has strong baking ability and high degree of automation, but its structure is complicated and the cost is high, so it cannot be popularized and used in the vast grain production areas.
此外，粮食收获季节，因受到天气、劳动力情况等因素影响、加之广大种粮户种植面有限，迫切需要一种烘烤效率高、单位能耗低、适应范围广、造价相对低廉的粮食烘干设备。虽然少数企业生产小型粮食烘干设备，但热源大多为电、油、烘烤费用较高，少数烧煤的设备因燃烧方式限制，能耗相对较高，难以适应产区要求。如专利CN89221522.4公布了一种用电的多功能小型粮食烘干机，专利CN99225586.4公布了一种用煤的多功能小型粮食烘干机，专利CN97229629.8公布了一种可使用油或气的粮食烘干装置，专利CN01233277.1公布了一种使用液化气的液化石油气粮食烘干机。 In addition, during the grain harvest season, due to the influence of weather, labor conditions and other factors, and the limited planting area of the majority of grain growers, there is an urgent need for a grain drying machine with high baking efficiency, low unit energy consumption, wide adaptability and relatively low cost. equipment. Although a few enterprises produce small-scale grain drying equipment, most of the heat sources are electricity, oil, and the cost of baking is relatively high. A small number of coal-fired equipment has relatively high energy consumption due to the limitation of combustion methods, and it is difficult to adapt to the requirements of the production area. Such as patent CN89221522.4 has announced a kind of multifunctional small grain dryer using electricity, patent CN99225586.4 has announced a kind of multifunctional small grain dryer with coal, and patent CN97229629.8 has announced a kind of can use oil Or gas grain drying device, patent CN01233277.1 has announced a kind of liquefied petroleum gas grain dryer using liquefied petroleum gas.
如何在粮食烘烤过程中有效保证品质并满足食品卫生要求、如何进一步实现节能、环保的优异性能、如何降低劳动强度及烘烤成本、如何降低设备成本使之在广大粮产区推广使用，这些问题都有待进一步完善和解决。 How to effectively ensure the quality and meet food hygiene requirements in the process of grain baking, how to further realize the excellent performance of energy saving and environmental protection, how to reduce labor intensity and baking cost, how to reduce equipment cost to promote its use in the vast grain production areas, these The problems need to be further improved and resolved.
发明内容 Contents of the invention
本实用新型的目的是提供一种负压粮食烘干机，采用负压二次燃烧方式，燃烧系统及热风系统均采用负压引风结构，燃烧烟气与热空气分离，可节约能源、降低大气污染物排放；其粮仓可实现顺逆流、混逆流和顺混流综合烘干作用，烘干能力强，单位能耗低，可保证谷物品质和含水率均匀的高性能要求。 The purpose of this utility model is to provide a negative pressure grain dryer, which adopts a negative pressure secondary combustion method, and both the combustion system and the hot air system adopt a negative pressure induced air structure, and the combustion flue gas is separated from the hot air, which can save energy and reduce Emission of air pollutants; the granary can realize the comprehensive drying function of forward and reverse flow, mixed and reverse flow and forward and mixed flow, with strong drying capacity and low unit energy consumption, which can ensure the high performance requirements of uniform grain quality and moisture content.
实现本实用新型的技术方案是：在炉柜内部装有供热炉，供热炉顶盖通过连接管式换热器接到烟囱，炉柜与供热炉之间有风道间隙，烟囱旁接有负压助燃风机，供热炉的空气入口设在清灰口，炉柜顶开有冷空气入口，炉柜下部侧壁开有热风出口并通过送风管接到粮仓的分风仓内，送风管内安装热风机，粮仓由带网孔的分风板分为底部的分风仓和上部的料仓，料仓侧面设有卸料口而顶部设有投料口及回风口，回风口通过回风管接到炉柜顶部。 The technical scheme to realize the utility model is: a heating furnace is installed inside the furnace cabinet, the top cover of the heating furnace is connected to the chimney through a connecting tube heat exchanger, there is an air duct gap between the furnace cabinet and the heating furnace, and the chimney Connected with a negative pressure combustion-supporting fan, the air inlet of the heating furnace is set at the dust removal port, the top of the furnace cabinet has a cold air inlet, and the side wall of the lower part of the furnace cabinet has a hot air outlet, which is connected to the air distribution chamber of the granary through the air supply pipe , a hot air blower is installed in the air supply pipe. The granary is divided into the bottom air distribution bin and the upper bin by the air distribution plate with mesh. It is connected to the top of the furnace cabinet through the return air duct. the
为了进一步节能、提高烘干效率，在供热炉的炉璧、顶盖和换热器外壁都设置有突起的翅片，负压助燃风机的引风口与烟囱的纵向相切；料仓侧面设有两个以上卸料口及排湿窗。另外还采取了粮仓及炉柜的各方向面板皆为带隔热层的复合板。 In order to further save energy and improve drying efficiency, protruding fins are provided on the furnace wall, top cover and outer wall of the heat exchanger of the heating furnace, and the air inlet of the negative pressure combustion-supporting fan is tangent to the longitudinal direction of the chimney; There are more than two discharge ports and moisture removal windows. In addition, the panels in all directions of the granary and the furnace cabinet are all composite panels with heat insulation layers.
本实用新型的工作原理是这样的：待烘烤粮食从投料口送入料仓，燃料通过供热炉加煤口送入炉膛后，在负压助燃风机的负压作用下，助燃空气从清灰口进入炉膛参与助燃，此后燃料在炉膛内开始燃烧，产生的热量通过炉璧及其上面的翅片向外传递，供热炉中的热烟气进入换热器并以热辐射方式向外传递热量后通过烟囱排出。在热风机抽力形成的负压作用下，冷空气通过炉柜顶部的冷空气入口进入风道，从上往下依次冲刷换热器、炉璧并带走其热辐射产生的热量，最后冷空气被加热形成热空气，通过热风出口送入热风机并向粮仓提供热量。 The working principle of the utility model is as follows: the grain to be baked is sent into the hopper from the feeding port, and after the fuel is sent into the furnace through the coal feeding port of the heating furnace, under the negative pressure of the negative pressure combustion-supporting fan, the combustion-supporting air flows from the clean The ash enters the furnace to participate in the combustion, and then the fuel starts to burn in the furnace, and the heat generated is transferred outward through the furnace wall and the fins on it, and the hot flue gas in the heating furnace enters the heat exchanger and radiates outward After transferring the heat, it is discharged through the chimney. Under the action of the negative pressure formed by the hot air blower, the cold air enters the air duct through the cold air inlet on the top of the furnace cabinet, washes the heat exchanger and the furnace wall from top to bottom, and takes away the heat generated by the heat radiation. The air is heated to form hot air, which is sent into the hot air blower through the hot air outlet and provides heat to the grain bin.
本实用新型的有益效果是：与传统粮食烘干机相比，本实用新型适应谷物种类较广、因结构简单、造价低廉，广泛适用于产区种粮户推广使用。此外，本实用新型为绿色、节能、高效、环保型粮食烘烤设备，采用了负压二次燃烧方式，燃烧系统及热风系统均采用负压引风结构，使得燃烧烟气与热空气彻底分离，实现节约能源、降低大气污染物排放、提高烘烤品质的目的，同时确保烘烤物绿色、无污染。与传统烘烤方式及设备相比，本实用新型不但能有效节约能源、大幅降低果蔬烘烤成本、提高粮食烘烤品质、降低生产劳动强度，为农户创造更大经济价值，同时，能大幅降低大气污染物排放，为改善生产生活环境、促进地方环保事业更好很快发展做出突出贡献。本粮食烘干机充分利用了横流烘干机、混流烘干机、顺流烘干机的优点，最大程度弥补了各自的不足。容易实现配备节能、高效的供热设备及智能温湿度控制仪，从而使物料快速烘干，单位能耗大幅下降，保证谷物品质和含水率均匀的高性能要求。 The beneficial effects of the utility model are: compared with the traditional grain dryer, the utility model is suitable for a wider variety of grains, and because of its simple structure and low cost, it is widely applicable to popularize and use by grain growers in production areas. In addition, the utility model is a green, energy-saving, high-efficiency, and environment-friendly grain baking equipment, which adopts a negative pressure secondary combustion method, and both the combustion system and the hot air system adopt a negative pressure induced air structure, so that the combustion smoke and hot air are completely separated , to achieve the purpose of saving energy, reducing air pollutant emissions, and improving baking quality, while ensuring that the baked goods are green and pollution-free. Compared with traditional baking methods and equipment, the utility model can not only effectively save energy, greatly reduce the cost of fruit and vegetable baking, improve the quality of food baking, reduce production labor intensity, and create greater economic value for farmers. The discharge of air pollutants has made outstanding contributions to improving the production and living environment and promoting the better and faster development of local environmental protection. This grain dryer makes full use of the advantages of cross-flow dryers, mixed-flow dryers, and down-flow dryers, and makes up for their respective shortcomings to the greatest extent. It is easy to be equipped with energy-saving and efficient heating equipment and intelligent temperature and humidity controllers, so that the materials can be dried quickly, the unit energy consumption is greatly reduced, and the high-performance requirements of ensuring grain quality and moisture content are uniform.
附图说明 Description of drawings
图1为本实用新型的结构示意图。 Fig. 1 is the structural representation of the utility model.
图中各标号依次表示：负压助燃风机1；烟囱2；回风管3；炉柜顶4；冷空气入口5；炉柜6；换热器7；风道8；顶盖9；供热炉10；加煤口11；清灰口12；热风机13；送风管14；料仓15；卸料口16；分风仓17；分风板18；保温复合板19；回风口20；粮仓顶21；排湿窗22；投料口23。
The labels in the figure represent in sequence: negative pressure combustion-supporting fan 1; chimney 2; return air pipe 3; furnace cabinet top 4; cold air inlet 5; furnace cabinet 6; heat exchanger 7; Furnace 10;
具体实施方式 Detailed ways
参见图2。在炉柜6内装有供热炉10，炉柜6与供热炉10之间设置有风道8，供热炉6的顶盖9连接管式换热器7，换热器7连接烟囱2，烟囱2上旁接负压助燃风机1，供热炉6的空气入口设在清灰口12，炉柜顶部4开有冷空气入口5，炉柜6下部侧壁开有热风出口并与送风管14连接，热风机13安装于送风管14内，粮仓被带有网孔的分风板18分为上下两部分，底部为分风仓17，上部为料仓15，分风仓17一端与送风管14连接，料仓15侧面设有多个卸料口16及排湿窗22，粮仓顶21设有投料口23及回风口20，回风管3一端与回风口20连接，另一端与炉柜顶部4连接。
See Figure 2. A
待烘烤粮食从投料口23送入料仓15，燃料通过供热炉10加煤口11送入炉膛后，在负压助燃风机1的负压作用下，助燃空气从清灰口12进入炉膛参与助燃，此后燃料在炉膛内开始燃烧，产生的热量通过炉璧及其上面的翅片向外传递，供热炉10中的热烟气进入换热器7并以热辐射方式向外传递热量后通过烟囱2排出。在热风机13抽力形成的负压作用下，冷空气通过炉柜顶部的冷空气入口5进入风道8，从上往下依次冲刷换热器7、炉璧并带走其热辐射产生的热量，最后冷空气被加热形成热空气，通过热风出口送入热风机7并向料仓15提供热量。
The grain to be baked is fed into the bin 15 from the feeding port 23, and the fuel is sent into the furnace through the
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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 |
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2012
- 2012-06-19 CN CN201220288406.0U 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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