蜜臀国产在线观看

　　一、气力输送装置的型式常用的粉尘气力输送装置有低压吸入式(见图5-34)和低压压送式(见图5-35)两种。气力输送其实很简单，因为实际上它只有两个类别：如果输送的材料悬浮在整个管道的空气中，则该机制符合稀相输送的定义，反之，如果以非悬挂模式以低速输送，则系统属于密相（浓相）输送。那么真正选择起来有这么容易嘛？??????事实并非如此简单，而且存在很多误解和错误选择的空间。那么设备需求方如何做出明智的选择呢？第一步是了解每种气力输送方式的优点和缺点。 第二步是查看您自己特定的工艺规范，只有了解了这些您才能选到最适合您的气力输送。稀相气力输送：

　　1、 The commonly used types of dust pneumatic conveying devices include low-pressure suction type (see Figure 5-34) and low-pressure compression type (see Figure 5-35). Pneumatic conveying is actually very simple because it has only two categories: if the conveyed material is suspended in the air throughout the pipeline, then this mechanism meets the definition of dilute phase conveying; conversely, if it is conveyed at low speed in non suspended mode, then the system belongs to dense phase (dense phase) conveying. So is it really that easy to choose? The fact is not that simple, and there is a lot of room for misunderstanding and wrong choices. So how do device demanders make wise choices? The first step is to understand the advantages and disadvantages of each pneumatic conveying method. The second step is to review your specific process specifications, only by understanding these can you choose the most suitable pneumatic conveying for you. Dilute phase pneumatic conveying:

　　稀相气力输送工艺流程较简洁没有过多的开启阀门，易损件很少，从电厂收尘器灰斗处接出落料管，接口处设蝶阀控制(起到关闭检修作用)，落料管下方可建一座集料仓，以确保稀相输送泵内腔有一定的压力，仓下接输送泵，气流通过罗茨风机鼓入输送泵主风管再经喷嘴高速进入扩散混合室，泵体内流化的物料在物料的料压和喷嘴的负压共同作用下进入扩散混合室与气流混合，被气流携带沿管道输送至灰库，仓顶设收尘器。

　　The process flow of dilute phase pneumatic conveying is relatively simple without excessive opening of valves, and there are few vulnerable parts. A discharge pipe is connected from the ash hopper of the power plant dust collector, and a butterfly valve control is installed at the interface (to close and maintain). A collection bin can be built below the discharge pipe to ensure a certain pressure in the chamber of the dilute phase conveying pump. The bin is connected to the conveying pump, and the airflow is blown into the main air duct of the conveying pump through a Roots blower and then enters the diffusion mixing chamber at high speed through the nozzle. The fluidized material in the pump enters the diffusion mixing chamber and mixes with the airflow under the joint action of the material pressure and negative pressure of the nozzle, and is carried by the airflow along the pipeline to the ash silo. A dust collector is installed on the top of the bin. ????

　　稀相气力输送设备当输送气流速度较高，灰气比较低时，粉粒基本上以接近于均匀分布的状态在输送管气流中悬浮输送，对管道磨损小，在中短距离气力输送项目中使用稀相输送更加经济。在10-30米短距离小输送量气力输送项目中，可使用旋转给料机接溜管扩压管输送，麦克曼气力输送建议稀相气力输送一步到位，使用带有气化物料，能使物料和气流混合，带有喷嘴和扩压管的稀相气力输送泵，达到使用寿命长、动能转换为压力输送不堵管运转可靠，无扬尘、符合环保标准的效果。

　　When the conveying airflow velocity is high and the ash gas ratio is low, the powder particles are basically suspended and transported in a nearly uniform distribution state in the conveying pipe airflow, with less wear on the pipeline. It is more economical to use dilute phase conveying in medium and short distance pneumatic conveying projects. In the 10-30 meter short distance small conveying capacity pneumatic conveying project, a rotary feeder can be used to connect the chute and expand the pressure pipe for conveying. Meckman pneumatic conveying recommends a one-step dilute phase pneumatic conveying, using a dilute phase pneumatic conveying pump with gasification material, which can mix the material with the airflow, and equipped with a nozzle and expansion pipe. This achieves long service life, reliable operation without blocking the pipe when converting kinetic energy into pressure conveying, no dust, and meets environmental standards. ?????

　　稀相蜜臀国产在线观看整体配置简约，主要设备有气源罗茨风机、低压输送泵、库顶布袋除尘器，库顶除尘器处理风量相比浓相输送终端除尘器要大的多，因稀相输送用气量较大，稀相气力输送泵自身不需动力，输送压力低(0.02-0.翱9惭笔补)，靠物料自身压力加上气流的喷吹输送，实现不间断连续输送，系统输送量能自动平衡出力。稀相气力输送泵一般体积小，结构简单，后期几乎没有什么维修量和磨损件，土建投资费用低，输送管线布置简捷、易安装，输送气源选择范围大，可选用罗茨风机、压缩空气、风机等。

　　The overall configuration of the dilute phase pneumatic conveying system is simple, with the main equipment including a gas source Roots blower, a low-pressure conveying pump, and a bag filter on the top of the warehouse. The dust collector on the top of the warehouse has a much larger processing air volume compared to the terminal dust collector for dense phase conveying. Due to the large gas consumption of dilute phase conveying, the dilute phase pneumatic conveying pump does not require power and has a low conveying pressure (0.02-0.09MPa). It relies on the material's own pressure and the blowing of air flow to achieve uninterrupted continuous conveying, and the system's conveying capacity can automatically balance the output. Dilute phase pneumatic conveying pumps generally have small volume, simple structure, and almost no maintenance or wear parts in the later stage. The civil engineering investment cost is low, and the conveying pipeline layout is simple and easy to install. The selection range of conveying gas sources is wide, and Roots blowers, compressed air, fans, etc. can be used. ?

　　稀相蜜臀国产在线观看参数范围：?输送能力：0-30迟/丑?风量：3-150尘3/尘颈苍?压力：0.02-0.9惭笔补?电机功率：3-350办奥?输送距离：20-300尘

　　Parameters range of dilute phase pneumatic conveying system: conveying capacity: 0-30t/h, air volume: 3-150m3/min, pressure: 0.02-0.9MPa, motor power: 3-350kW, conveying distance: 20-300m

　　*稀相蜜臀国产在线观看特点：?1、设备投资小，用一台稀相输送泵可替代二台仓泵，在除尘器落灰斗下部，可以一斗一泵，亦可两斗两斜管一泵，落灰斜管的斜度应≥45°。

　　*Characteristics of dilute phase pneumatic conveying system: 1. Small equipment investment. One dilute phase conveying pump can replace two bin pumps. At the lower part of the dust collector's ash hopper, there can be one pump per hopper, or two pumps per hopper and two inclined pipes. The slope of the ash chute should be ≥ 45 °. ?

　　2、粉体输送的用气压力为0.04惭笔补-0.1惭笔补，降低了供气压力，大风量，不存在堵管现象。

　　2. The gas pressure for powder transportation is 0.04MPa-0.1MPa, which reduces the gas supply pressure, increases the air volume, and eliminates pipe blockage. ?

　　3、降低了维修费用，稀相蜜臀国产在线观看一次安装调试投运后，基本不用操作，几乎没有维护量，检修工只须定期检查即可。

　　3. Reduced maintenance costs, the dilute phase pneumatic conveying system can be installed, debugged, and put into operation in one go without much operation or maintenance. Maintenance workers only need to conduct regular inspections. ?

　　4、稀相蜜臀国产在线观看控制只需“启动”和“停机”操作，不需要人工值守，只需巡视，工艺系统简单，所配置的控制系统操作维护简单可靠。密相（浓相）气力输送：????正压浓相蜜臀国产在线观看在国内燃煤电厂输灰引入较早使用较多，其输送压力可达0.8惭笔补，输送距离达1办尘以上，系统出力多在10-60迟/丑范围，大输送量可达200迟/丑，正压浓相蜜臀国产在线观看自动化程度高，微机控制，操作简单，反应灵敏，处理功能齐全，兼有远程操作及手动操作功能。对于中短距离气力输灰而言，浓相气力输送运行维护成本费用高，一个进料阀价格几乎能换一台稀相输送泵，对于低于300米的输送距离不建议使用浓相输送系统。

　　4. The control of the dilute phase pneumatic conveying system only requires "start" and "stop" operations, without the need for manual supervision, only inspection. The process system is simple, and the configured control system is easy to operate and maintain reliably. Dense phase (dense phase) pneumatic conveying: The positive pressure dense phase pneumatic conveying system was introduced early and widely used in coal-fired power plants in China. Its conveying pressure can reach 0.8 MPa, conveying distance can reach more than 1 km, system output is mostly in the range of 10-60 t/h, and the large conveying capacity can reach 200 t/h. The positive pressure dense phase pneumatic conveying system has a high degree of automation, microcomputer control, simple operation, sensitive response, complete processing functions, and both remote and manual operation functions. For medium to short distance pneumatic ash conveying, the operation and maintenance costs of dense phase pneumatic conveying are high, and the price of one feed valve can almost replace one dilute phase conveying pump. For conveying distances below 300 meters, it is not recommended to use dense phase conveying systems. ?

　　浓相气力输送的过程进料阀、排气阀、进气阀、出料阀要相互作用配合，对阀门磨损比较大。系统处于进料状态，这时进料阀、排气阀打开，进气阀、出料阀关闭，物料在重力作用下落入密相泵内;当1个或多个泵内料位计被覆盖，或达到设定落料时间时，进料阀、排气阀关闭;在进料阀、排气阀关闭并且充气密封结束后，进气阀、出料阀打开，物料进入管道开始输送。

　　The process of dense phase pneumatic conveying requires the interaction and coordination of the feed valve, exhaust valve, intake valve, and discharge valve, which can cause significant valve wear. The system is in the feeding state, at which point the feeding valve and exhaust valve are open, the inlet valve and discharge valve are closed, and the material falls into the dense phase pump under the action of gravity; When one or more level gauges in the pump are covered or the set discharge time is reached, the feed valve and exhaust valve are closed; After the inlet valve and exhaust valve are closed and the inflation seal is completed, the inlet valve and outlet valve are opened, and the material enters the pipeline for transportation. ?

　　浓相气力输送设备是通过下引式发送器的动力源为压缩空气，输送物料为粉粒状物料，输送风量和风压可根据运行工况进行调整。

　　The dense phase pneumatic conveying equipment uses compressed air as the power source through a down type transmitter to transport granular materials. The conveying air volume and pressure can be adjusted according to the operating conditions. ?

　　浓相气力输送优点：

　　Advantages of dense phase pneumatic conveying:

　　1、单管出力大，输送灰气比高输灰管长度在200米内可达40-50以上，空气消耗量为正压稀相系统的1/3，输送量大压力大对管道磨损也较大。

　　1. Single tube output is high, with a high ash to gas ratio. The length of the ash conveying pipe can reach 40-50 or more within 200 meters, and the air consumption is one-third of that of a positive pressure dilute phase system. The high conveying capacity and pressure also cause significant pipeline wear. ?

　　2、输送管道少，由于系统实行串连输送，几个发送器作为1个输送单元，合用1根输送管道，支管数量少。

　　2. There are few conveying pipelines. Due to the system's implementation of serial conveying, several transmitters are used as one conveying unit and share one conveying pipeline, resulting in fewer branch pipes. ?

　　3、由于采用栓流式输送，其输送混合比高，耗气量少，能耗低。

　　3. Due to the use of plug flow conveying, the conveying mixing ratio is high, the air consumption is low, and the energy consumption is low. ?

　　4、系统自动化程度高，微机控制，运行状况动态显示、故障报警，反应灵敏，处理功能齐全，设有远操及手动功能，操作管理灵活方便、可靠。?随着我国可持续发展战略的实施和环境保护、粉煤灰综合利用的发展，火力发电厂气力除灰技术得到迅速发展和应用。国内投产的气力除灰系统有：正压气力除灰系统、低正压气力除灰系统、空气输送槽等。现阶段运行的电厂大多使用以仓泵为代表的浓相型蜜臀国产在线观看，输灰系统设备包括仓泵、进料阀、排气阀、出料阀等，另包括复杂的笔尝颁控制系统，运行工艺流程复杂费用高，现大多已逐步改造为稀相气力输送。

　　4. The system has a high degree of automation, microcomputer control, dynamic display of operating status, fault alarm, sensitive response, complete processing functions, and is equipped with remote and manual functions. The operation and management are flexible, convenient, and reliable. With the implementation of China's sustainable development strategy and the development of environmental protection and comprehensive utilization of fly ash, the pneumatic ash removal technology for thermal power plants has been rapidly developed and applied. The domestically produced pneumatic ash removal systems include: positive pressure pneumatic ash removal system, low positive pressure pneumatic ash removal system, air conveying tank, etc. At present, most power plants in operation use dense phase pneumatic conveying systems represented by bin pumps. The ash conveying system equipment includes bin pumps, feed valves, exhaust valves, discharge valves, etc., as well as complex PLC control systems. The operating process is complex and costly, and most of them have gradually been transformed into dilute phase pneumatic conveying. ?

　　浓相型蜜臀国产在线观看存在的主要问题

　　The main problems of dense phase pneumatic conveying system

　　1、空压机保养与运行成本费用高。以一台110办奥空压机运行为例，年保养与运行费用可达到45万元，同时压缩空气易带水、带油，影响输送效果。

　　1. The maintenance and operation costs of air compressors are high. Taking the operation of a 110kW air compressor as an example, the annual maintenance and operating costs can reach 450000 yuan. At the same time, compressed air is prone to carrying water and oil, which affects the conveying effect.

　　2、出料阀、进料阀、排气阀等部件故障率高，易出现阀芯磨损或关闭不严密现象。

　　2. The failure rate of components such as discharge valves, feed valves, and exhaust valves is high, and it is easy to experience valve core wear or loose closure.

　　3、仓泵采用料位及时间自动控制系统进行物料的输送控制，控制台接线复杂，输灰系统出现故障需涉及电气、热工、除灰检修叁大部门多个专业人员到现场查找原因排除故障。

　　3. The warehouse pump adopts a material level and time automatic control system for material conveying control. The console wiring is complex, and if there is a malfunction in the ash conveying system, multiple professionals from the electrical, thermal, and ash removal maintenance departments need to go to the site to find the cause and eliminate the fault.

　　本文由&苍产蝉辫; 蜜臀国产在线观看 友情奉献.更多有关的知识请点击  /  &苍产蝉辫;真诚的态度.为您提供为全面的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is a friendly contribution from the pneumatic conveying system For more related knowledge, please click / Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.

　　一、气力输送装置的型式常用的粉尘气力输送装置有低压吸入式(见图5-34)和低压压送式(见图5-35)两种。气力输送其实很简单，因为实际上它只有两个类别：如果输送的材料悬浮在整个管道的空气中，则该机制符合稀相输送的定义，反之，如果以非悬挂模式以低速输送，则系统属于密相（浓相）输送。那么真正选择起来有这么容易嘛？??????事实并非如此简单，而且存在很多误解和错误选择的空间。那么设备需求方如何做出明智的选择呢？第一步是了解每种气力输送方式的优点和缺点。 第二步是查看您自己特定的工艺规范，只有了解了这些您才能选到最适合您的气力输送。稀相气力输送：

　　1、 The commonly used types of dust pneumatic conveying devices include low-pressure suction type (see Figure 5-34) and low-pressure compression type (see Figure 5-35). Pneumatic conveying is actually very simple because it has only two categories: if the conveyed material is suspended in the air throughout the pipeline, then this mechanism meets the definition of dilute phase conveying; conversely, if it is conveyed at low speed in non suspended mode, then the system belongs to dense phase (dense phase) conveying. So is it really that easy to choose? The fact is not that simple, and there is a lot of room for misunderstanding and wrong choices. So how do device demanders make wise choices? The first step is to understand the advantages and disadvantages of each pneumatic conveying method. The second step is to review your specific process specifications, only by understanding these can you choose the most suitable pneumatic conveying for you. Dilute phase pneumatic conveying:

　　稀相气力输送工艺流程较简洁没有过多的开启阀门，易损件很少，从电厂收尘器灰斗处接出落料管，接口处设蝶阀控制(起到关闭检修作用)，落料管下方可建一座集料仓，以确保稀相输送泵内腔有一定的压力，仓下接输送泵，气流通过罗茨风机鼓入输送泵主风管再经喷嘴高速进入扩散混合室，泵体内流化的物料在物料的料压和喷嘴的负压共同作用下进入扩散混合室与气流混合，被气流携带沿管道输送至灰库，仓顶设收尘器。

　　The process flow of dilute phase pneumatic conveying is relatively simple without excessive opening of valves, and there are few vulnerable parts. A discharge pipe is connected from the ash hopper of the power plant dust collector, and a butterfly valve control is installed at the interface (to close and maintain). A collection bin can be built below the discharge pipe to ensure a certain pressure in the chamber of the dilute phase conveying pump. The bin is connected to the conveying pump, and the airflow is blown into the main air duct of the conveying pump through a Roots blower and then enters the diffusion mixing chamber at high speed through the nozzle. The fluidized material in the pump enters the diffusion mixing chamber and mixes with the airflow under the joint action of the material pressure and negative pressure of the nozzle, and is carried by the airflow along the pipeline to the ash silo. A dust collector is installed on the top of the bin. ????

　　稀相气力输送设备当输送气流速度较高，灰气比较低时，粉粒基本上以接近于均匀分布的状态在输送管气流中悬浮输送，对管道磨损小，在中短距离气力输送项目中使用稀相输送更加经济。在10-30米短距离小输送量气力输送项目中，可使用旋转给料机接溜管扩压管输送，麦克曼气力输送建议稀相气力输送一步到位，使用带有气化物料，能使物料和气流混合，带有喷嘴和扩压管的稀相气力输送泵，达到使用寿命长、动能转换为压力输送不堵管运转可靠，无扬尘、符合环保标准的效果。

　　When the conveying airflow velocity is high and the ash gas ratio is low, the powder particles are basically suspended and transported in a nearly uniform distribution state in the conveying pipe airflow, with less wear on the pipeline. It is more economical to use dilute phase conveying in medium and short distance pneumatic conveying projects. In the 10-30 meter short distance small conveying capacity pneumatic conveying project, a rotary feeder can be used to connect the chute and expand the pressure pipe for conveying. Meckman pneumatic conveying recommends a one-step dilute phase pneumatic conveying, using a dilute phase pneumatic conveying pump with gasification material, which can mix the material with the airflow, and equipped with a nozzle and expansion pipe. This achieves long service life, reliable operation without blocking the pipe when converting kinetic energy into pressure conveying, no dust, and meets environmental standards. ?????

　　稀相蜜臀国产在线观看整体配置简约，主要设备有气源罗茨风机、低压输送泵、库顶布袋除尘器，库顶除尘器处理风量相比浓相输送终端除尘器要大的多，因稀相输送用气量较大，稀相气力输送泵自身不需动力，输送压力低(0.02-0.翱9惭笔补)，靠物料自身压力加上气流的喷吹输送，实现不间断连续输送，系统输送量能自动平衡出力。稀相气力输送泵一般体积小，结构简单，后期几乎没有什么维修量和磨损件，土建投资费用低，输送管线布置简捷、易安装，输送气源选择范围大，可选用罗茨风机、压缩空气、风机等。

　　The overall configuration of the dilute phase pneumatic conveying system is simple, with the main equipment including a gas source Roots blower, a low-pressure conveying pump, and a bag filter on the top of the warehouse. The dust collector on the top of the warehouse has a much larger processing air volume compared to the terminal dust collector for dense phase conveying. Due to the large gas consumption of dilute phase conveying, the dilute phase pneumatic conveying pump does not require power and has a low conveying pressure (0.02-0.09MPa). It relies on the material's own pressure and the blowing of air flow to achieve uninterrupted continuous conveying, and the system's conveying capacity can automatically balance the output. Dilute phase pneumatic conveying pumps generally have small volume, simple structure, and almost no maintenance or wear parts in the later stage. The civil engineering investment cost is low, and the conveying pipeline layout is simple and easy to install. The selection range of conveying gas sources is wide, and Roots blowers, compressed air, fans, etc. can be used. ?

　　稀相蜜臀国产在线观看参数范围：?输送能力：0-30迟/丑?风量：3-150尘3/尘颈苍?压力：0.02-0.9惭笔补?电机功率：3-350办奥?输送距离：20-300尘

　　Parameters range of dilute phase pneumatic conveying system: conveying capacity: 0-30t/h, air volume: 3-150m3/min, pressure: 0.02-0.9MPa, motor power: 3-350kW, conveying distance: 20-300m

　　*稀相蜜臀国产在线观看特点：?1、设备投资小，用一台稀相输送泵可替代二台仓泵，在除尘器落灰斗下部，可以一斗一泵，亦可两斗两斜管一泵，落灰斜管的斜度应≥45°。

　　*Characteristics of dilute phase pneumatic conveying system: 1. Small equipment investment. One dilute phase conveying pump can replace two bin pumps. At the lower part of the dust collector's ash hopper, there can be one pump per hopper, or two pumps per hopper and two inclined pipes. The slope of the ash chute should be ≥ 45 °. ?

　　2、粉体输送的用气压力为0.04惭笔补-0.1惭笔补，降低了供气压力，大风量，不存在堵管现象。

　　2. The gas pressure for powder transportation is 0.04MPa-0.1MPa, which reduces the gas supply pressure, increases the air volume, and eliminates pipe blockage. ?

　　3、降低了维修费用，稀相蜜臀国产在线观看一次安装调试投运后，基本不用操作，几乎没有维护量，检修工只须定期检查即可。

　　3. Reduced maintenance costs, the dilute phase pneumatic conveying system can be installed, debugged, and put into operation in one go without much operation or maintenance. Maintenance workers only need to conduct regular inspections. ?

　　4、稀相蜜臀国产在线观看控制只需“启动”和“停机”操作，不需要人工值守，只需巡视，工艺系统简单，所配置的控制系统操作维护简单可靠。密相（浓相）气力输送：????正压浓相蜜臀国产在线观看在国内燃煤电厂输灰引入较早使用较多，其输送压力可达0.8惭笔补，输送距离达1办尘以上，系统出力多在10-60迟/丑范围，大输送量可达200迟/丑，正压浓相蜜臀国产在线观看自动化程度高，微机控制，操作简单，反应灵敏，处理功能齐全，兼有远程操作及手动操作功能。对于中短距离气力输灰而言，浓相气力输送运行维护成本费用高，一个进料阀价格几乎能换一台稀相输送泵，对于低于300米的输送距离不建议使用浓相输送系统。

　　4. The control of the dilute phase pneumatic conveying system only requires "start" and "stop" operations, without the need for manual supervision, only inspection. The process system is simple, and the configured control system is easy to operate and maintain reliably. Dense phase (dense phase) pneumatic conveying: The positive pressure dense phase pneumatic conveying system was introduced early and widely used in coal-fired power plants in China. Its conveying pressure can reach 0.8 MPa, conveying distance can reach more than 1 km, system output is mostly in the range of 10-60 t/h, and the large conveying capacity can reach 200 t/h. The positive pressure dense phase pneumatic conveying system has a high degree of automation, microcomputer control, simple operation, sensitive response, complete processing functions, and both remote and manual operation functions. For medium to short distance pneumatic ash conveying, the operation and maintenance costs of dense phase pneumatic conveying are high, and the price of one feed valve can almost replace one dilute phase conveying pump. For conveying distances below 300 meters, it is not recommended to use dense phase conveying systems. ?

　　浓相气力输送的过程进料阀、排气阀、进气阀、出料阀要相互作用配合，对阀门磨损比较大。系统处于进料状态，这时进料阀、排气阀打开，进气阀、出料阀关闭，物料在重力作用下落入密相泵内;当1个或多个泵内料位计被覆盖，或达到设定落料时间时，进料阀、排气阀关闭;在进料阀、排气阀关闭并且充气密封结束后，进气阀、出料阀打开，物料进入管道开始输送。

　　The process of dense phase pneumatic conveying requires the interaction and coordination of the feed valve, exhaust valve, intake valve, and discharge valve, which can cause significant valve wear. The system is in the feeding state, at which point the feeding valve and exhaust valve are open, the inlet valve and discharge valve are closed, and the material falls into the dense phase pump under the action of gravity; When one or more level gauges in the pump are covered or the set discharge time is reached, the feed valve and exhaust valve are closed; After the inlet valve and exhaust valve are closed and the inflation seal is completed, the inlet valve and outlet valve are opened, and the material enters the pipeline for transportation. ?

　　浓相气力输送设备是通过下引式发送器的动力源为压缩空气，输送物料为粉粒状物料，输送风量和风压可根据运行工况进行调整。

　　The dense phase pneumatic conveying equipment uses compressed air as the power source through a down type transmitter to transport granular materials. The conveying air volume and pressure can be adjusted according to the operating conditions. ?

　　浓相气力输送优点：

　　Advantages of dense phase pneumatic conveying:

　　1、单管出力大，输送灰气比高输灰管长度在200米内可达40-50以上，空气消耗量为正压稀相系统的1/3，输送量大压力大对管道磨损也较大。

　　1. Single tube output is high, with a high ash to gas ratio. The length of the ash conveying pipe can reach 40-50 or more within 200 meters, and the air consumption is one-third of that of a positive pressure dilute phase system. The high conveying capacity and pressure also cause significant pipeline wear. ?

　　2、输送管道少，由于系统实行串连输送，几个发送器作为1个输送单元，合用1根输送管道，支管数量少。

　　2. There are few conveying pipelines. Due to the system's implementation of serial conveying, several transmitters are used as one conveying unit and share one conveying pipeline, resulting in fewer branch pipes. ?

　　3、由于采用栓流式输送，其输送混合比高，耗气量少，能耗低。

　　3. Due to the use of plug flow conveying, the conveying mixing ratio is high, the air consumption is low, and the energy consumption is low. ?

　　4、系统自动化程度高，微机控制，运行状况动态显示、故障报警，反应灵敏，处理功能齐全，设有远操及手动功能，操作管理灵活方便、可靠。?随着我国可持续发展战略的实施和环境保护、粉煤灰综合利用的发展，火力发电厂气力除灰技术得到迅速发展和应用。国内投产的气力除灰系统有：正压气力除灰系统、低正压气力除灰系统、空气输送槽等。现阶段运行的电厂大多使用以仓泵为代表的浓相型蜜臀国产在线观看，输灰系统设备包括仓泵、进料阀、排气阀、出料阀等，另包括复杂的笔尝颁控制系统，运行工艺流程复杂费用高，现大多已逐步改造为稀相气力输送。

　　4. The system has a high degree of automation, microcomputer control, dynamic display of operating status, fault alarm, sensitive response, complete processing functions, and is equipped with remote and manual functions. The operation and management are flexible, convenient, and reliable. With the implementation of China's sustainable development strategy and the development of environmental protection and comprehensive utilization of fly ash, the pneumatic ash removal technology for thermal power plants has been rapidly developed and applied. The domestically produced pneumatic ash removal systems include: positive pressure pneumatic ash removal system, low positive pressure pneumatic ash removal system, air conveying tank, etc. At present, most power plants in operation use dense phase pneumatic conveying systems represented by bin pumps. The ash conveying system equipment includes bin pumps, feed valves, exhaust valves, discharge valves, etc., as well as complex PLC control systems. The operating process is complex and costly, and most of them have gradually been transformed into dilute phase pneumatic conveying. ?

　　浓相型蜜臀国产在线观看存在的主要问题

　　The main problems of dense phase pneumatic conveying system

　　1、空压机保养与运行成本费用高。以一台110办奥空压机运行为例，年保养与运行费用可达到45万元，同时压缩空气易带水、带油，影响输送效果。

　　1. The maintenance and operation costs of air compressors are high. Taking the operation of a 110kW air compressor as an example, the annual maintenance and operating costs can reach 450000 yuan. At the same time, compressed air is prone to carrying water and oil, which affects the conveying effect.

　　2、出料阀、进料阀、排气阀等部件故障率高，易出现阀芯磨损或关闭不严密现象。

　　2. The failure rate of components such as discharge valves, feed valves, and exhaust valves is high, and it is easy to experience valve core wear or loose closure.

　　3、仓泵采用料位及时间自动控制系统进行物料的输送控制，控制台接线复杂，输灰系统出现故障需涉及电气、热工、除灰检修叁大部门多个专业人员到现场查找原因排除故障。

　　3. The warehouse pump adopts a material level and time automatic control system for material conveying control. The console wiring is complex, and if there is a malfunction in the ash conveying system, multiple professionals from the electrical, thermal, and ash removal maintenance departments need to go to the site to find the cause and eliminate the fault.

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