CN203447786U - A superheated steam closed circuit spray dryer - Google Patents
A superheated steam closed circuit spray dryer Download PDFInfo
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- CN203447786U CN203447786U CN201320484820.3U CN201320484820U CN203447786U CN 203447786 U CN203447786 U CN 203447786U CN 201320484820 U CN201320484820 U CN 201320484820U CN 203447786 U CN203447786 U CN 203447786U
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- dust removal
- stage dust
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- superheated steam
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- 239000007921 spray Substances 0.000 title claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 41
- 238000001035 drying Methods 0.000 claims abstract description 32
- 239000002918 waste heat Substances 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims abstract description 17
- 238000003303 reheating Methods 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 7
- 238000001694 spray drying Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000007605 air drying Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
Description
技术领域 technical field
本实用新型属于喷雾干燥设备领域，涉及一种过热蒸汽闭路循环喷雾干燥机。The utility model belongs to the field of spray drying equipment and relates to a superheated steam closed circuit spray dryer.
背景技术 Background technique
利用过热蒸汽作为干燥介质，可以将含水量高的液态物料直接干燥成含水量低的粉状产品，可以很大程度地提高热效率，而且从过热蒸汽中排出的废热可以实现再利用。现有的喷雾干燥机存在热效率低，结构复杂，干燥成本高昂且不能很好的回收尾气余热等问题。Using superheated steam as a drying medium can directly dry liquid materials with high water content into powdery products with low water content, which can greatly improve thermal efficiency, and the waste heat discharged from superheated steam can be reused. Existing spray dryers have problems such as low thermal efficiency, complex structure, high drying cost and inability to recover exhaust waste heat well.
实用新型内容 Utility model content
本实用新型的目的是提供一种回收尾气余热提高热效率的过热蒸汽闭路循环喷雾干燥机。The purpose of the utility model is to provide a superheated steam closed-circuit circulation spray dryer which recovers the waste heat of tail gas and improves thermal efficiency.
实现本实用新型目的的技术方案是：一种过热蒸汽闭路循环喷雾干燥机，包括加料机构、干燥机构、第一级除尘机构、第二级除尘机构、循环风机、再热机构、气体过滤机构、余热回收机构；所述加料机构通过进料泵与所述干燥机构顶部的雾化器相连接，所述干燥机构的出料口与所述第一级除尘机构的进风口连接，所述第一级除尘机构的出风口与所述第二级除尘机构的进风口连接，过热蒸汽通过所述第二级除尘机构后一部分进入所述再热机构经所述气体过滤机构送回所述干燥机构；另一部分进入所述余热回收机构回收热量；在所述第二级除尘机构与所述再热机构间连接有所述循环风机。The technical solution to realize the purpose of this utility model is: a superheated steam closed-circuit circulation spray dryer, including a feeding mechanism, a drying mechanism, a first-stage dust removal mechanism, a second-stage dust removal mechanism, a circulating fan, a reheating mechanism, a gas filtering mechanism, Waste heat recovery mechanism; the feeding mechanism is connected to the atomizer at the top of the drying mechanism through a feed pump, the outlet of the drying mechanism is connected to the air inlet of the first-stage dust removal mechanism, and the first The air outlet of the first-stage dust removal mechanism is connected to the air inlet of the second-stage dust removal mechanism, and part of the superheated steam enters the reheating mechanism after passing through the second-stage dust removal mechanism and is sent back to the drying mechanism through the gas filter mechanism; The other part enters the waste heat recovery mechanism to recover heat; the circulation fan is connected between the second-stage dedusting mechanism and the reheating mechanism.
优选的所述干燥机构是喷雾干燥塔，所述第一级除尘机构是旋风除尘器，所述第二级除尘机构是布袋除尘器，所述再热机构是热交换器；所述加料机构包括配料罐、贮水罐、搅拌器，所述配料罐和贮水罐的出料口与所述进料泵的进料口相连接。Preferably, the drying mechanism is a spray drying tower, the first-stage dust removal mechanism is a cyclone dust collector, the second-stage dust removal mechanism is a bag filter, and the reheating mechanism is a heat exchanger; the feeding mechanism includes A batching tank, a water storage tank, and an agitator, the outlets of the batching tank and the water storage tank are connected to the feed inlet of the feed pump.
优选的在所述干燥机构、第一级除尘机构、第二级除尘机构的底部设有可供排出物料的旋转阀。Preferably, a rotary valve for discharging materials is provided at the bottom of the drying mechanism, the first-stage dust removal mechanism and the second-stage dust removal mechanism.
本实用新型具有积极的效果：（1）通过循环风机和再热机构对封闭干燥系统进行预热，直至排风温度超过100℃以上；再通过加料机构和雾化器进行喷水，维持较高排风温度以制造过热蒸汽；过热蒸汽经过再热机构的持续加热变成不饱和高温过热蒸汽，随喷雾干燥的持续，压力逐渐升高至某设定值，通过压力开关释放排出部分过热蒸汽，排出的蒸汽量理论上等于该干燥器的水分蒸发量，并通过余热回收机构回收热量；可以最大程度地提高热效率，实现快速处理物料和回收尾气余热，结构简单，节能环保。The utility model has positive effects: (1) Preheat the closed drying system through the circulating fan and the reheating mechanism until the exhaust air temperature exceeds 100°C; then spray water through the feeding mechanism and the atomizer to maintain a high temperature. The exhaust air temperature is used to produce superheated steam; the superheated steam becomes unsaturated high-temperature superheated steam through the continuous heating of the reheating mechanism. As the spray drying continues, the pressure gradually rises to a certain set value, and part of the superheated steam is discharged through the pressure switch. The amount of steam discharged is theoretically equal to the water evaporation of the dryer, and the heat is recovered through the waste heat recovery mechanism; it can maximize the thermal efficiency, realize rapid processing of materials and recovery of waste heat from exhaust gas, simple structure, energy saving and environmental protection.
（2）所述干燥机构、第一级除尘机构、第二级除尘机构底部的旋转阀可以分级收集物料产品，方便快捷。(2) The rotary valves at the bottom of the drying mechanism, the first-stage dust removal mechanism, and the second-stage dust removal mechanism can collect materials and products in stages, which is convenient and quick.
（3）冷媒进入所述余热回收机构后输出可利用的热媒，冷凝水进一步回收利用。(3) After the refrigerant enters the waste heat recovery mechanism, the usable heat medium is output, and the condensed water is further recycled.
（4）由于密闭干燥系统最终被置换成惰性的无氧过热蒸汽气氛，该气氛不存在燃烧和氧化反应，因此过热蒸汽干燥特别适合在空气干燥体系中易燃易爆的产品。(4) Since the closed drying system is finally replaced by an inert oxygen-free superheated steam atmosphere, there is no combustion and oxidation reaction in this atmosphere, so superheated steam drying is especially suitable for flammable and explosive products in the air drying system.
附图说明 Description of drawings
为了使本实用新型的内容更容易被清楚地理解，下面根据具体实施例并结合附图，对本实用新型作进一步详细的说明，其中In order to make the content of the utility model easier to understand clearly, the utility model will be further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein
图1为一种过热蒸汽闭路循环喷雾干燥机的结构示意图；Fig. 1 is the structural representation of a kind of superheated steam closed loop spray dryer;
1是加料机构，2是干燥机构，3是第一级除尘机构，4是第二级除尘机构，5是循环风机，6是再热机构，7是气体精过滤机构，8是余热回收机构，9是进料泵，10是配料罐，11是贮水罐，12是搅拌器，13是雾化器，14是旋转阀1 is the feeding mechanism, 2 is the drying mechanism, 3 is the first-stage dust removal mechanism, 4 is the second-stage dust removal mechanism, 5 is the circulating fan, 6 is the reheating mechanism, 7 is the gas fine filter mechanism, 8 is the waste heat recovery mechanism, 9 is the feed pump, 10 is the batching tank, 11 is the water storage tank, 12 is the agitator, 13 is the atomizer, 14 is the rotary valve
具体实施方式 Detailed ways
见图1，本实用新型具有一种过热蒸汽闭路循环喷雾干燥机，包括加料机构1、干燥机构2、第一级除尘机构3、第二级除尘机构4、循环风机5、再热机构6、气体过滤机构7、余热回收机构8；所述加料机构1通过进料泵9与所述干燥机构2顶部的雾化器13相连接，所述干燥机构2的出料口与所述第一级除尘机构3的进风口连接，所述第一级除尘机构3的出风口与所述第二级除尘机构4的进风口连接，过热蒸汽通过所述第二级除尘机构4后一部分进入所述再热机构6经所述气体过滤机构7送回所述干燥机构2；另一部分进入所述余热回收机构8回收热量；在所述第二级除尘机构4与所述再热机构6之间连接有所述循环风机5。As shown in Figure 1, the utility model has a superheated steam closed-circuit circulation spray dryer, including a feeding mechanism 1, a drying mechanism 2, a first-stage dust removal mechanism 3, a second-stage dust removal mechanism 4, a circulating fan 5, a reheating mechanism 6, Gas filter mechanism 7, waste heat recovery mechanism 8; the feeding mechanism 1 is connected to the atomizer 13 on the top of the drying mechanism 2 through the feed pump 9, and the discharge port of the drying mechanism 2 is connected to the first stage The air inlet of the dust removal mechanism 3 is connected, the air outlet of the first-stage dust removal mechanism 3 is connected with the air inlet of the second-stage dust removal mechanism 4, and the superheated steam enters the re- The heat mechanism 6 is sent back to the drying mechanism 2 through the gas filter mechanism 7; the other part enters the waste heat recovery mechanism 8 to recover heat; there is a connection between the second-stage dust removal mechanism 4 and the reheat mechanism 6 The circulation fan 5.
进一步的所述干燥机构2是喷雾干燥塔，所述第一级除尘机构3是旋风除尘器，所述第二级除尘机构4是布袋除尘器，所述再热机构6是热交换器；所述加料机构1包括配料罐10、贮水罐11、搅拌器12，所述配料罐10和贮水罐11的出料口与所述进料泵9的进料口相连接。Further, the drying mechanism 2 is a spray drying tower, the first-stage dedusting mechanism 3 is a cyclone dust collector, the second-stage dedusting mechanism 4 is a bag filter, and the reheating mechanism 6 is a heat exchanger; The feeding mechanism 1 includes a batching tank 10 , a water storage tank 11 , and an agitator 12 , and the outlets of the batching tank 10 and the water storage tank 11 are connected to the feed inlet of the feed pump 9 .
通过循环风机5和再热机构6对封闭干燥系统进行预热，直至排风温度超过100℃以上；再通过加料机构1和雾化器13进行喷水，维持较高排风温度以制造过热蒸汽；过热蒸汽经过再热机构6的持续加热变成不饱和高温过热蒸汽，随喷雾干燥的持续，压力逐渐升高至某设定值，通过压力开关释放排出部分过热蒸汽，排出的蒸汽量理论上等于该干燥器的水分蒸发量，通过余热回收机构8回收热量；可以最大程度地提高热效率，实现快速处理物料和回收尾气余热，结构简单，节能环保。Preheat the closed drying system through the circulating fan 5 and the reheating mechanism 6 until the exhaust air temperature exceeds 100°C; then spray water through the feeding mechanism 1 and the atomizer 13 to maintain a high exhaust air temperature to produce superheated steam The superheated steam becomes unsaturated high-temperature superheated steam through the continuous heating of the reheating mechanism 6. With the continuation of spray drying, the pressure gradually rises to a certain set value, and part of the superheated steam is discharged through the pressure switch. The amount of steam discharged is theoretically Equal to the moisture evaporation of the dryer, the heat is recovered through the waste heat recovery mechanism 8; the thermal efficiency can be improved to the greatest extent, and the rapid processing of materials and the recovery of waste heat from exhaust gas can be realized. The structure is simple, energy-saving and environmentally friendly.
进一步的在所述干燥机构2、第一级除尘机构3、第二级除尘机构4的底部设有可供排出物料的旋转阀14，可以分级收集物料产品，方便快捷。Further, a rotary valve 14 for discharging materials is provided at the bottom of the drying mechanism 2, the first-stage dust removal mechanism 3, and the second-stage dust removal mechanism 4, so that the materials and products can be collected in stages, which is convenient and quick.
冷媒进入所述余热回收机构8后输出可利用的热媒，冷凝水进一步回收利用。After the refrigerant enters the waste heat recovery mechanism 8, the available heat medium is output, and the condensed water is further recycled.
由于密闭干燥系统最终被置换成惰性的无氧过热蒸汽气氛，该气氛不存在燃烧和氧化反应，因此过热蒸汽干燥特别适合在空气干燥体系中易燃易爆的产品。Since the closed drying system is finally replaced by an inert oxygen-free superheated steam atmosphere, there is no combustion and oxidation reaction in the atmosphere, so superheated steam drying is especially suitable for flammable and explosive products in the air drying system.
以上所述的具体实施例，对本实用新型的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本实用新型的具体实施例而已，并不用于限制本实用新型，凡在本实用新型的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. It should be understood that the above descriptions are only specific embodiments of the present utility model and are not intended to limit the present invention. For the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.
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| CN201320484820.3U CN203447786U (en) | 2013-08-08 | 2013-08-08 | A superheated steam closed circuit spray dryer |
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| CN201320484820.3U CN203447786U (en) | 2013-08-08 | 2013-08-08 | A superheated steam closed circuit spray dryer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390495A (en) * | 2016-09-25 | 2017-02-15 | 黄卫东 | Air energy spraying and drying equipment |
| CN106512453A (en) * | 2016-10-19 | 2017-03-22 | 天华化工机械及自动化研究设计院有限公司 | Energy-saving and product-quality-increasing method for spray drying of corn steep liquor by nitrogen closed circulation |
| CN107854855A (en) * | 2017-11-14 | 2018-03-30 | 无锡求索机械科技有限公司 | A kind of spray drying system |
| CN108854930A (en) * | 2018-08-22 | 2018-11-23 | 江苏先导干燥科技有限公司 | A novel intelligent spray reaction device and its reaction method |
| CN110893284A (en) * | 2019-12-04 | 2020-03-20 | 荣海生物科技有限公司 | A kind of recovery method of soybean peptide powder fine powder |
-
2013
- 2013-08-08 CN CN201320484820.3U patent/CN203447786U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390495A (en) * | 2016-09-25 | 2017-02-15 | 黄卫东 | Air energy spraying and drying equipment |
| CN106390495B (en) * | 2016-09-25 | 2018-06-29 | 黄卫东 | A kind of air energy spray drying device |
| CN106512453A (en) * | 2016-10-19 | 2017-03-22 | 天华化工机械及自动化研究设计院有限公司 | Energy-saving and product-quality-increasing method for spray drying of corn steep liquor by nitrogen closed circulation |
| CN106512453B (en) * | 2016-10-19 | 2019-03-19 | 天华化工机械及自动化研究设计院有限公司 | A kind of nitrogen airtight circulation corn steep liquor spray drying energy saving and product quality improvement method |
| CN107854855A (en) * | 2017-11-14 | 2018-03-30 | 无锡求索机械科技有限公司 | A kind of spray drying system |
| CN108854930A (en) * | 2018-08-22 | 2018-11-23 | 江苏先导干燥科技有限公司 | A novel intelligent spray reaction device and its reaction method |
| CN110893284A (en) * | 2019-12-04 | 2020-03-20 | 荣海生物科技有限公司 | A kind of recovery method of soybean peptide powder fine powder |
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Address after: 213116 Liang Zhuang bridge, Zhenglu Town, Wujin District, Changzhou, Jiangsu, China Patentee after: JIANGSU XIANDAO DRYING TECHNOLOGY Co.,Ltd. Address before: 213116 Liang Zhuang bridge, Zhenglu Town, Wujin District, Changzhou, Jiangsu, China Patentee before: CHANGZHOU XIANDAO DRYING EQUIPMENT Co.,Ltd. |
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Granted publication date: 20140226 |