CN221924246U - Energy-saving and environmentally friendly waste heat recovery and recycling grain dryer - Google Patents
Energy-saving and environmentally friendly waste heat recovery and recycling grain dryer Download PDFInfo
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- CN221924246U CN221924246U CN202420105505.3U CN202420105505U CN221924246U CN 221924246 U CN221924246 U CN 221924246U CN 202420105505 U CN202420105505 U CN 202420105505U CN 221924246 U CN221924246 U CN 221924246U
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- 239000002918 waste heat Substances 0.000 title claims abstract description 46
- 238000004064 recycling Methods 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 title claims abstract description 10
- 239000000428 dust Substances 0.000 claims abstract description 46
- 238000001035 drying Methods 0.000 claims abstract description 33
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims 3
- 238000007791 dehumidification Methods 0.000 abstract description 25
- 230000009467 reduction Effects 0.000 abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 101000827703 Homo sapiens Polyphosphoinositide phosphatase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 102100023591 Polyphosphoinositide phosphatase Human genes 0.000 description 1
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
本实用新型公开了一种节能环保余热回收循环利用型粮食烘干机，包括粮食烘干机塔体及电控系统，塔体烘干段的出风口连设有排湿和余热收集罩，在排湿和余热收集罩上设排湿和余热抽风机，排湿和余热抽风机的出风口与设置在热风炉内的热交换器的进风口连接，热风炉内的燃烧室通过热风通道与烘干段的进风口连接。本实用新型粮食干燥后的余热由排湿和余热抽风机送至热交换器装置内，经热交换器置换出来的热量送至燃烧室内，使燃烧室内所需的自然空气温度基数提高，燃料需求量得到减少，从而达到节能的目。由于余热在通过热交换过程中温度的变化使排出的湿气（水蒸气）变为较大的水分子颗粒与湿气中夹带的灰尘附着变重，通过降尘室降尘，达到了环保的目的。
The utility model discloses an energy-saving and environmentally friendly waste heat recovery and recycling type grain dryer, including a grain dryer tower body and an electric control system, the air outlet of the tower body drying section is connected with a dehumidification and waste heat collection cover, a dehumidification and waste heat exhaust fan is arranged on the dehumidification and waste heat collection cover, the air outlet of the dehumidification and waste heat exhaust fan is connected to the air inlet of the heat exchanger arranged in the hot air furnace, and the combustion chamber in the hot air furnace is connected to the air inlet of the drying section through a hot air channel. In the utility model, the waste heat after grain drying is sent to the heat exchanger device by the dehumidification and waste heat exhaust fan, and the heat replaced by the heat exchanger is sent to the combustion chamber, so that the natural air temperature base required in the combustion chamber is increased, and the fuel demand is reduced, thereby achieving the purpose of energy saving. Due to the change in temperature of the waste heat during the heat exchange process, the discharged moisture (water vapor) is converted into larger water molecule particles and the dust entrained in the moisture is attached and becomes heavier, and dust is reduced through the dust reduction chamber, thereby achieving the purpose of environmental protection.
Description
技术领域Technical Field
本实用新型涉及粮食烘干机，具体涉及一种节能环保余热回收循环利用型粮食烘干机。The utility model relates to a grain dryer, in particular to an energy-saving and environment-friendly waste heat recovery and recycling type grain dryer.
背景技术Background Art
粮食烘干机是一种把不符合入库标准的湿粮烘干到达到国家入库标准的粮食烘干设备，有连续式和批式循环两种，统称为粮食烘干机或谷物干燥机。公知的粮食烘干机包括塔体、提升机、热风炉、热风机、排粮机构以及电控箱等部分组成，这种已有的粮食烘干机在使用中存在有以下缺陷：①烘干系统有热风炉产生的热风送至烘干段，与湿粮充分接触把粮食加热后排出的余热（水蒸气）和夹带的灰尘直接排出机外，造成余热（水蒸气）浪费，灰尘四处漂扬。例如热风温度是120度，排出的湿气（水蒸气）还有60度都浪费了；②由于直接排出的湿气（水蒸气）中含有一定的灰尘也造成了环境的污染。Grain dryer is a kind of grain drying equipment that dries wet grain that does not meet the storage standards to meet the national storage standards. There are two types: continuous and batch cycles, collectively referred to as grain dryers or grain dryers. The known grain dryer includes a tower body, an elevator, a hot air furnace, a hot air blower, a grain discharge mechanism, and an electric control box. This existing grain dryer has the following defects during use: ① The hot air generated by the hot air furnace in the drying system is sent to the drying section, which is in full contact with the wet grain. The waste heat (water vapor) and the entrained dust discharged after the grain is heated are directly discharged out of the machine, resulting in waste heat (water vapor) Waste, dust floating everywhere. For example, if the hot air temperature is 120 degrees, the discharged moisture (water vapor) is still 60 degrees wasted; ② Because the directly discharged moisture (water vapor) contains a certain amount of dust, it also causes environmental pollution.
发明内容Summary of the invention
针对现有粮食烘干机所存在的现状，本实用新型所要解决的技术问题是提供一种余热能够回收循环利用且节能环保的新型粮食烘干机。In view of the current status of existing grain dryers, the technical problem to be solved by the utility model is to provide a new type of grain dryer which can recover and recycle waste heat and is energy-saving and environmentally friendly.
为解决上述技术问题，本实用新型所采取的技术方案是：一种节能环保余热回收循环利用型粮食烘干机，包括粮食烘干机塔体及电控系统，塔体的上部为储粮段，中部为烘干段、下部为冷却段，冷却段下部为排粮机构，烘干段一侧进风口连接有热风炉，冷却段连接有冷风机，储粮段顶部连接有提升机，所述烘干段的出风口连设有排湿和余热收集罩，在排湿和余热收集罩上设排湿和余热抽风机，排湿和余热抽风机的出风口与设置在热风炉内的热交换器的进风口连接，热风炉内的燃烧室通过热风通道与烘干段的进风口连接。In order to solve the above technical problems, the technical solution adopted by the utility model is: an energy-saving and environmentally friendly waste heat recovery and recycling type grain dryer, including a grain dryer tower body and an electronic control system, the upper part of the tower body is a grain storage section, the middle part is a drying section, and the lower part is a cooling section, the lower part of the cooling section is a grain discharge mechanism, the air inlet on one side of the drying section is connected to a hot air furnace, the cooling section is connected to a cold air fan, and the top of the grain storage section is connected to a hoist, the air outlet of the drying section is connected to a dehumidification and waste heat collection cover, a dehumidification and waste heat exhaust fan is arranged on the dehumidification and waste heat collection cover, the air outlet of the dehumidification and waste heat exhaust fan is connected to the air inlet of a heat exchanger arranged in the hot air furnace, and the combustion chamber in the hot air furnace is connected to the air inlet of the drying section through a hot air channel.
所述热风炉内热交换器的出风口还与降尘室连通，降尘室的内顶部和内底部间从进风口到出风口依次交错设多个挡尘板，从降尘室的进风口到降尘室的出风口相邻挡尘板水平间距逐渐增大，热风炉内的热交换器的出风口与降尘室的进风口连接。The air outlet of the heat exchanger in the hot blast furnace is also connected to the dust reduction chamber. A plurality of dust shields are alternately arranged between the inner top and the inner bottom of the dust reduction chamber from the air inlet to the air outlet. The horizontal spacing between adjacent dust shields gradually increases from the air inlet of the dust reduction chamber to the air outlet of the dust reduction chamber. The air outlet of the heat exchanger in the hot blast furnace is connected to the air inlet of the dust reduction chamber.
在所述烘干段内设多个热风角管，多个热风角管与热风通道连通，热风通道与热风炉内燃烧室连接，烘干段的塔体上所设的多个排尘排湿角管通过排湿和余热收集罩与排湿和余热抽风机连接。A plurality of hot air angle tubes are arranged in the drying section, the plurality of hot air angle tubes are connected to the hot air channel, the hot air channel is connected to the combustion chamber in the hot air furnace, and a plurality of dust and moisture removal angle tubes arranged on the tower body of the drying section are connected to the moisture removal and waste heat exhaust fan through the moisture removal and waste heat collection cover.
在所述塔体底部排粮机构下方设下粮斗，下粮斗的出粮口处设呈人字形的分粮器，分粮器的一分支与提升机连接，分粮器的另一分支为出粮口，在分粮器两分支的交汇处设置有能控制粮食出粮走向的分粮开关。A lower grain hopper is arranged below the grain discharge mechanism at the bottom of the tower body, and a herringbone-shaped grain distributor is arranged at the grain outlet of the lower grain hopper. One branch of the grain distributor is connected to the elevator, and the other branch of the grain distributor is the grain outlet. A grain distributor switch that can control the grain outlet direction is arranged at the intersection of the two branches of the grain distributor.
所述分粮开关是在分粮器的两分支交汇处内部管壁上设转轴，转轴上固定有受电器控制的翻板，转轴的一端伸出到分粮器外部，转轴的该端固定有气动或电动推拉杆，根据选择的批式循环或连续式工作需要电控系统通过气动或电动推拉杆能够自动关闭分粮器两分支中的某一分支。The grain distributor switch is a rotating shaft provided on the inner tube wall at the intersection of the two branches of the grain distributor, on which a flap controlled by an electrical device is fixed, and one end of the rotating shaft extends to the outside of the grain distributor, on which a pneumatic or electric push-pull rod is fixed. According to the selected batch cycle or continuous working requirements, the electronic control system can automatically close one of the two branches of the grain distributor through the pneumatic or electric push-pull rod.
本实用新型采用上述技术方案所设计的节能环保余热回收循环利用型粮食烘干机，通过把烘干机的烘干段全部封闭起来，粮食干燥后的余热由排湿和余热抽风机送至热交换器装置内，经热交换器置换出来的热量送至燃烧室内，使燃烧室内所需的自然空气温度基数提高，燃料需求量得到减少，从而达到节能的目。由于干燥过程中排出的湿气（水蒸气）含有灰尘，在热交换过程中温度的变化使湿气（水蒸气）变为较大的水分子颗粒，易与灰尘附着，使灰尘变重，在通过降尘室的降尘过程中，使降尘效果进一步提高，因此又达到了环保的目的。The utility model adopts the energy-saving and environmentally friendly waste heat recovery and recycling grain dryer designed by the above technical solution. By completely closing the drying section of the dryer, the waste heat after the grain is dried is sent to the heat exchanger device by the dehumidification and waste heat exhaust fan, and the heat replaced by the heat exchanger is sent to the combustion chamber, so that the natural air temperature base required in the combustion chamber is increased, and the fuel demand is reduced, thereby achieving the purpose of energy saving. Since the moisture (water vapor) discharged during the drying process contains dust, the temperature change during the heat exchange process causes the moisture (water vapor) to become larger water molecule particles, which are easy to adhere to dust, making the dust heavier. In the dust reduction process through the dust reduction chamber, the dust reduction effect is further improved, thereby achieving the purpose of environmental protection.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1表示本实用新型的主视结构示意图；FIG1 is a schematic diagram showing the main structure of the present invention;
图2表示本实用新型的左视结构示意图；FIG2 shows a left-side structural schematic diagram of the present invention;
图3表示图2中A部的放大结构示意图；FIG3 is a schematic diagram showing an enlarged structure of section A in FIG2 ;
图4表示本实用新型热风炉的结构示意图；FIG4 is a schematic diagram showing the structure of the hot blast furnace of the present invention;
图5表示本实用新型的右视结构示意图；FIG5 is a schematic diagram showing the right side structure of the present invention;
图6表示本实用新型余热回收循环利用原理示意图；FIG6 is a schematic diagram showing the principle of waste heat recovery and recycling of the present invention;
图7表示本实用新型的后视结构示意图；FIG7 is a schematic diagram showing the rear view structure of the utility model;
图8表示图7中B部分粮器的放大结构示意图。FIG. 8 is a schematic diagram showing the enlarged structure of the grain container of part B in FIG. 7 .
图中：1-进粮口，2-燃烧机，3-支座，4-排粮机构，5-冷风罩，6-冷却风机，7-检修窗，8-储粮段，9-提升机，10-热风通道，11-排湿和余热收集罩，12-排湿和余热抽风机，13-排湿出口，14-排湿罩，15-热风炉，16-降尘室进风口，17-降尘室，18-挡尘板，19-降尘室出风口，20-粮食，21-热风角管，22-排尘排湿角管，23-干燥热风走向，24-热交换器，25-燃烧室，26-湿气灰尘出口，27-热风流向，28-余热流向，31-混合室及热风通道口，32-室外自然风进口，33-下粮斗，34-分支二，35-拉杆，36-转轴，37-翻板，38-气动或电动推拉杆，39-分支一。In the figure: 1-grain inlet, 2-burner, 3-support, 4-grain discharge mechanism, 5-cold air hood, 6-cooling fan, 7-inspection window, 8-grain storage section, 9-elevator, 10-hot air channel, 11-dehumidification and waste heat collection hood, 12-dehumidification and waste heat exhaust fan, 13-dehumidification outlet, 14-dehumidification hood, 15-hot air furnace, 16-dust reduction chamber air inlet, 17-dust reduction chamber, 18-dust shield, 19-dust reduction chamber air outlet, 20 - grain, 21- hot air angle tube, 22- dust and moisture exhaust angle tube, 23- direction of drying hot air, 24- heat exchanger, 25- combustion chamber, 26- moisture and dust outlet, 27- hot air flow direction, 28- waste heat flow direction, 31- mixing chamber and hot air channel opening, 32- outdoor natural wind inlet, 33- lower grain hopper, 34- branch two, 35- pull rod, 36- rotating shaft, 37- flap, 38- pneumatic or electric push-pull rod, 39- branch one.
具体实施方式DETAILED DESCRIPTION
下面结合附图对本实用新型节能环保余热回收循环利用型粮食烘干机作具体说明。The utility model of energy-saving and environmentally friendly waste heat recovery and recycling type grain drying machine is described in detail below with reference to the accompanying drawings.
本实用新型节能环保余热回收循环利用型粮食烘干机，参见图1至图8，包括设置在支座3上的粮食烘干机塔体及控制各部分协调动作的电控系统，塔体的上部为储粮段8，中部为烘干段、下部为冷却段，冷却段下部为排粮机构4，烘干段连接有热风炉15，冷却段连接有冷风罩5，冷风罩5上设置有冷却风机6，储粮段顶部连接有提升机9，塔体上还设置有检修窗7。在烘干段内设多个热风角管21，多个热风角管21与热风通道10连通，干燥热风走向23沿图示方向流动，粮食20通过烘干段内的热风角管21所散发的热得到加热烘干。在烘干段处设排湿和余热收集罩11，排湿和余热收集罩11将烘干段内多个排尘排湿角管22包封起来，在排湿和余热收集罩11上设排湿和余热抽风机12。排湿和余热抽风机12的出风口与设置在热风炉15内的热交换器24连接，排湿和余热抽风机12将烘干段内释放的余热沿余热流向28进入到热交换器24内进行热交换。外界空气通过室外自然风进口32进入到热风炉15内，热风炉15内的燃烧室25燃烧所释放的热通过混合室及热风通道口31沿热风流向27通过热风通道10进入到烘干段，燃烧室25与燃烧机2连接。热风炉15的湿气灰尘出口26与降尘室17的进风口16连通，降尘室17的内顶部和内底部间从进风口16到出风口19依次交错设多个挡尘板18，从进风口16到出风口19相邻挡尘板18水平间距逐渐增大，热风炉15与降尘室17的进风口连接。热风炉15上还设置有排湿罩14，排湿罩14上有排湿出口13。The utility model energy-saving and environmentally friendly waste heat recovery and recycling type grain dryer, see Figures 1 to 8, includes a grain dryer tower body set on a support 3 and an electric control system for controlling the coordinated actions of various parts. The upper part of the tower body is a grain storage section 8, the middle part is a drying section, and the lower part is a cooling section. The lower part of the cooling section is a grain discharge mechanism 4. The drying section is connected to a hot air furnace 15, the cooling section is connected to a cold air cover 5, and a cooling fan 6 is arranged on the cold air cover 5. The top of the grain storage section is connected to a hoist 9, and the tower body is also provided with an inspection window 7. A plurality of hot air angle tubes 21 are arranged in the drying section, and the plurality of hot air angle tubes 21 are connected to the hot air channel 10. The direction 23 of the dry hot air flows in the direction shown in the figure, and the grain 20 is heated and dried by the heat emitted by the hot air angle tubes 21 in the drying section. A dehumidification and waste heat collection cover 11 is provided at the drying section, and the dehumidification and waste heat collection cover 11 encloses a plurality of dust and moisture removal angle tubes 22 in the drying section, and a dehumidification and waste heat exhaust fan 12 is provided on the dehumidification and waste heat collection cover 11. The air outlet of the dehumidification and waste heat exhaust fan 12 is connected to the heat exchanger 24 provided in the hot air furnace 15, and the dehumidification and waste heat exhaust fan 12 transfers the waste heat released in the drying section into the heat exchanger 24 along the waste heat flow direction 28 for heat exchange. External air enters the hot air furnace 15 through the outdoor natural wind inlet 32, and the heat released by the combustion in the combustion chamber 25 in the hot air furnace 15 enters the drying section through the mixing chamber and the hot air channel opening 31 along the hot air flow direction 27 through the hot air channel 10, and the combustion chamber 25 is connected to the burner 2. The wet dust outlet 26 of the hot air furnace 15 is connected to the air inlet 16 of the dust reduction chamber 17. A plurality of dust shields 18 are arranged alternately from the air inlet 16 to the air outlet 19 between the inner top and the inner bottom of the dust reduction chamber 17. The horizontal spacing between adjacent dust shields 18 increases gradually from the air inlet 16 to the air outlet 19. The hot air furnace 15 is connected to the air inlet of the dust reduction chamber 17. A dehumidification hood 14 is also arranged on the hot air furnace 15, and a dehumidification outlet 13 is arranged on the dehumidification hood 14.
本实用新型的原理是热风炉15产生的热风通过热风通道10送到烘干段，热风在烘干段内通过与湿粮的充分接触使湿粮的水分蒸发变成水蒸气（图3中箭头表示热与粮食的交换过程），在此过程中还夹带有灰尘，通过烘干段上的排湿和余热收集罩11及排湿和余热抽风机12送至热风炉15内的热交换器24的进风口，由热交换器24置换出的热量（热风）送至热风炉15内的燃烧室25，使燃烧室25内的基础风自然温度提高，达到节能的目的。由于粮食烘干过程排出的余热蒸气中夹带有灰尘，通过热交换器24时温度产生变化，使水蒸气变为较大的水分子颗粒并易与灰尘附着变重，最后通过降尘室17降尘达到环保的目的。The principle of the utility model is that the hot air generated by the hot air furnace 15 is sent to the drying section through the hot air channel 10. The hot air evaporates the moisture of the wet grain into water vapor through full contact with the wet grain in the drying section (the arrow in Figure 3 indicates the heat and grain exchange process). In this process, dust is also entrained. It is sent to the air inlet of the heat exchanger 24 in the hot air furnace 15 through the dehumidification and waste heat collection cover 11 and the dehumidification and waste heat exhaust fan 12 on the drying section. The heat (hot air) replaced by the heat exchanger 24 is sent to the combustion chamber 25 in the hot air furnace 15, so that the natural temperature of the base wind in the combustion chamber 25 is increased, so as to achieve the purpose of energy saving. Since the waste heat steam discharged during the grain drying process contains dust, the temperature changes when passing through the heat exchanger 24, so that the water vapor becomes larger water molecule particles and is easy to adhere to dust and become heavier. Finally, the dust is removed through the dust removal chamber 17 to achieve the purpose of environmental protection.
本实用新型在塔体底部排粮机构4下方设下粮斗33，下粮斗33的出粮口处设呈人字形的分粮器，分粮器的分支一39与提升机9下部的进粮口1连接，分粮器的分支二34为出粮口，在分粮器两分支的交汇处设置有能控制粮食出粮走向的分粮开关。分粮开关是在分粮器的两分支交汇处内部管壁上设转轴36，转轴36上固定有受电器控制的翻板37，转轴36的一端伸出到分粮器外部，转轴36的该端通过拉杆35铰接有气动或电动推拉杆38，根据选择的批式循环或连续式工作需要，电控系统中的PLC控制器通过气动或电动推拉杆38能够自动关闭分粮器两分支中的某一分支，实现从下粮斗流出来的粮食沿不同的方向流动，从而实现批式循环或连续式的粮食烘干。The utility model is provided with a lower grain hopper 33 below the grain discharge mechanism 4 at the bottom of the tower body, and a herringbone grain distributor is provided at the grain outlet of the lower grain hopper 33. The first branch 39 of the grain distributor is connected to the grain inlet 1 at the lower part of the elevator 9, and the second branch 34 of the grain distributor is the grain outlet. A grain distributor switch capable of controlling the grain outlet direction is provided at the intersection of the two branches of the grain distributor. The grain distributor switch is provided with a rotating shaft 36 on the inner tube wall at the intersection of the two branches of the grain distributor, and a flap 37 controlled by an electric device is fixed on the rotating shaft 36. One end of the rotating shaft 36 extends to the outside of the grain distributor, and the end of the rotating shaft 36 is hinged with a pneumatic or electric push-pull rod 38 through a pull rod 35. According to the selected batch cycle or continuous working needs, the PLC controller in the electric control system can automatically close one of the two branches of the grain distributor through the pneumatic or electric push-pull rod 38, so that the grain flowing out of the lower grain hopper flows in different directions, thereby realizing batch cycle or continuous grain drying.
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