CN108190522B - A dust-proof ultrafine powder dynamic metering feeding system - Google Patents
A dust-proof ultrafine powder dynamic metering feeding system Download PDFInfo
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- CN108190522B CN108190522B CN201810026041.6A CN201810026041A CN108190522B CN 108190522 B CN108190522 B CN 108190522B CN 201810026041 A CN201810026041 A CN 201810026041A CN 108190522 B CN108190522 B CN 108190522B
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- 239000000843 powder Substances 0.000 title claims abstract description 46
- 239000000428 dust Substances 0.000 claims abstract description 33
- 238000005303 weighing Methods 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims description 16
- 230000004580 weight loss Effects 0.000 claims description 6
- 208000016261 weight loss Diseases 0.000 claims 3
- 238000005507 spraying Methods 0.000 abstract description 6
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 239000012254 powdered material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000007664 blowing Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229940098458 powder spray Drugs 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
Description
技术领域Technical Field
本发明涉及超细粉送料系统，具体公开了一种防扬尘的超细粉动态计量投料系统。The invention relates to an ultrafine powder feeding system, and in particular discloses an ultrafine powder dynamic metering feeding system which can prevent dust from being raised.
背景技术Background technique
超细粉是指直径小于10μm的颗粒，密度小于1g/ml，被广泛应用于化工、塑料、新能源、新材料、制药、食品、化妆品等领域。由于单颗超细粉材料的体积和重量都十分小，所以在输运过程中很容易发生扬尘，且不同超细粉材料的密度差异较大，因而在使用的过程中通常根据重量进行计量。超细粉使粉状材料的一种，传统技术没有针对超细粉设计专用的送料系统。Ultrafine powder refers to particles with a diameter of less than 10μm and a density of less than 1g/ml. It is widely used in the fields of chemical industry, plastics, new energy, new materials, pharmaceuticals, food, cosmetics, etc. Since the volume and weight of a single ultrafine powder material are very small, it is easy to generate dust during transportation, and the density of different ultrafine powder materials varies greatly. Therefore, it is usually measured by weight during use. Ultrafine powder is a kind of powdery material. Traditional technology does not have a dedicated feeding system designed for ultrafine powder.
现有粉状材料的送料系统通常设置有密封的投料站、上料仓、计量螺杆和接料仓，通过正压力以及重力的作用使上料仓中的粉状材料进入计量螺杆，计量螺杆再将粉状材料输送到接料仓中，由于现有送料系统中存在正压力，投料站在投料进入上料仓的过程中会产生严重的扬尘，计量螺杆送料到接料仓的过程中同样会产生严重的喷粉，粉状材料被喷出外界环境中不但严重影响空气质量、不利于环境中各装置的正常运作，同时还浪费材料，粉状材料配合正压动力系统存在爆炸的安全隐患；此外，现有送料系统的称重仅由计量螺杆通过流量计算完成，精确度低，且扬尘严重会影响实际到达接料仓中粉状材料的量，导致计量的可靠性低。The existing feeding system for powdered materials is usually provided with a sealed feeding station, a loading bin, a metering screw and a receiving bin. The powdered material in the loading bin enters the metering screw through the action of positive pressure and gravity, and the metering screw then transports the powdered material to the receiving bin. Due to the positive pressure in the existing feeding system, the feeding station will generate serious dust in the process of feeding the material into the loading bin, and the metering screw will also generate serious powder spray in the process of feeding the material to the receiving bin. The powdered material is sprayed out into the external environment, which not only seriously affects the air quality and is not conducive to the normal operation of various devices in the environment, but also wastes materials. There is a safety hazard of explosion when the powdered material is combined with the positive pressure power system. In addition, the weighing of the existing feeding system is only completed by the metering screw through flow calculation, with low accuracy, and the serious dust will affect the actual amount of powdered material reaching the receiving bin, resulting in low reliability of measurement.
特别是体积重量都极小的超细粉材料，使用上述现有的送料系统存在的问题更严重。Especially for ultra-fine powder materials with extremely small volume and weight, the problems existing in the above-mentioned existing feeding system are more serious.
发明内容Summary of the invention
基于此，有必要针对现有技术问题，提供一种防扬尘的超细粉动态计量投料系统，能够有效防止超细粉喷粉，安全性能高，且节省材料，能够实现可靠的高精度计量。Based on this, it is necessary to provide a dust-proof ultrafine powder dynamic metering feeding system to address the existing technical problems, which can effectively prevent ultrafine powder spraying, has high safety performance, saves materials, and can achieve reliable high-precision metering.
为解决现有技术问题，本发明公开一种防扬尘的超细粉动态计量投料系统，包括相互连通的投料站、输送计量机构和负压动力机构，投料站电连接有总控制器，总控制器电连接有计量控制器和负压控制器，计量控制器与输送计量机构电连接，负压控制器与负压动力机构电连接；In order to solve the problems of the prior art, the present invention discloses a dust-proof ultrafine powder dynamic metering feeding system, comprising a feeding station, a conveying metering mechanism and a negative pressure power mechanism which are interconnected, the feeding station is electrically connected to a general controller, the general controller is electrically connected to a metering controller and a negative pressure controller, the metering controller is electrically connected to the conveying metering mechanism, and the negative pressure controller is electrically connected to the negative pressure power mechanism;
输送计量机构包括支架，支架的上下分别设有第一称重模块和第二称重模块，第一称重模块的称重部固定有承载转运结构，第二称重模块的称重部固定有增重计量仓，投料站的输出端与承载转运结构的输入端连接，承载转运结构的输出端与增重计量仓的输入端连接，增重计量仓的输出端连接有出料管；The conveying and metering mechanism includes a bracket, and a first weighing module and a second weighing module are respectively arranged above and below the bracket, a load-bearing and transporting structure is fixed to the weighing part of the first weighing module, a weight-increasing and metering bin is fixed to the weighing part of the second weighing module, an output end of the feeding station is connected to an input end of the load-bearing and transporting structure, an output end of the load-bearing and transporting structure is connected to an input end of the weight-increasing and metering bin, and an output end of the weight-increasing and metering bin is connected to a discharge pipe;
负压动力机构包括通过首尾连通的真空输送机、负压储罐、过滤密封罐、负压源，真空输送机的输出端与承载转运结构连接，负压储罐的底部连通有集尘箱，过滤密封罐内设有粉尘过滤器；The negative pressure power mechanism includes a vacuum conveyor, a negative pressure storage tank, a filter sealing tank, and a negative pressure source connected end to end. The output end of the vacuum conveyor is connected to the load-bearing transfer structure. The bottom of the negative pressure storage tank is connected to a dust collecting box. A dust filter is provided in the filter sealing tank.
投料站的顶部连通有气压平衡管道，气压平衡管道分别与承载转运结构、增重计量仓、集尘箱实现连通。The top of the feeding station is connected with an air pressure balance pipeline, which is respectively connected with the load-bearing transfer structure, the weight-increasing metering bin, and the dust collecting box.
进一步的，承载转运结构包括失重计量仓和计量螺杆，失重计量仓的输出端与计量螺杆的输入端连接，失重计量仓的输入端为承载转运结构的输入端，计量螺杆的输出端为承载转运结构的输出端。Furthermore, the load-bearing transfer structure includes a loss-in-weight metering bin and a metering screw, the output end of the loss-in-weight metering bin is connected to the input end of the metering screw, the input end of the loss-in-weight metering bin is the input end of the load-bearing transfer structure, and the output end of the metering screw is the output end of the load-bearing transfer structure.
进一步的，失重计量仓内设有第一搅拌结构。Furthermore, a first stirring structure is provided in the weight loss metering bin.
进一步的，增重计量仓内设有第二搅拌结构。Furthermore, a second stirring structure is provided in the weight-increasing metering bin.
进一步的，计量螺杆的输出端通过软管与增重计量仓的输入端连接，计量螺杆、增重计量仓分别与软管的连接处均设有防漏阀门。Furthermore, the output end of the metering screw is connected to the input end of the weight-added metering bin through a hose, and leak-proof valves are provided at the connection points between the metering screw, the weight-added metering bin and the hose respectively.
进一步的，负压储罐设有负压表。Furthermore, the negative pressure storage tank is provided with a negative pressure gauge.
进一步的，真空输送机与负压储罐之间设有第一阀门，过滤密封罐连接有反吹装置。Furthermore, a first valve is provided between the vacuum conveyor and the negative pressure storage tank, and the filter sealing tank is connected to a back-blowing device.
进一步的，气压平衡管道与承载转运结构的连接处设有第二阀门。Furthermore, a second valve is provided at the connection between the air pressure balance pipeline and the load-bearing transfer structure.
进一步的，气压平衡管道与增重计量仓的连接处设有第三阀门。Furthermore, a third valve is provided at the connection between the air pressure balance pipeline and the weight-added metering bin.
本发明的有益效果为：本发明公开一种防扬尘的超细粉动态计量投料系统，采用负压和重力实现转运，同时设计可靠的气压平衡结构，能够有效防止超细粉喷粉而造成环境污染，防止环境中的工作人员健康受影响，还能确保环境中各种装置的使用寿命，安全性能高，且节省材料，系统整体的使用寿命长，还能防止因喷粉而影响实际计量的超细粉总量，配合特殊的计量机构，能够实现可靠的高精度动态计量。The beneficial effects of the present invention are as follows: the present invention discloses a dust-proof ultrafine powder dynamic metering feeding system, which adopts negative pressure and gravity to realize transportation, and designs a reliable air pressure balance structure at the same time, which can effectively prevent ultrafine powder from spraying to cause environmental pollution, prevent the health of workers in the environment from being affected, and ensure the service life of various devices in the environment. It has high safety performance and saves materials. The overall service life of the system is long, and it can also prevent the total amount of ultrafine powder actually measured from being affected by spraying. With the help of a special metering mechanism, reliable high-precision dynamic metering can be achieved.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明的结构示意图。FIG1 is a schematic structural diagram of the present invention.
附图标记为：投料站10、总控制器11、计量控制器12、负压控制器13、支架20、第一称重模块201、第二称重模块202、承载转运结构21、失重计量仓211、计量螺杆212、第一搅拌结构213、增重计量仓22、第二搅拌结构221、软管222、出料管23、真空输送机30、负压储罐31、负压表312、第一阀门313、过滤密封罐32、粉尘过滤器321、反吹装置322、负压源33、集尘箱34、气压平衡管道40、第二阀门401、第三阀门402。The accompanying drawings are marked as: feeding station 10, main controller 11, metering controller 12, negative pressure controller 13, bracket 20, first weighing module 201, second weighing module 202, load-bearing and transporting structure 21, loss-in-weight metering bin 211, metering screw 212, first stirring structure 213, gain-in-weight metering bin 22, second stirring structure 221, hose 222, discharge pipe 23, vacuum conveyor 30, negative pressure storage tank 31, negative pressure gauge 312, first valve 313, filter sealing tank 32, dust filter 321, backblowing device 322, negative pressure source 33, dust collecting box 34, air pressure balance pipeline 40, second valve 401, third valve 402.
具体实施方式Detailed ways
为能进一步了解本发明的特征、技术手段以及所达到的具体目的、功能，下面结合附图与具体实施方式对本发明作进一步详细描述。In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
参考图1。Refer to Figure 1.
本发明方案公开一种防扬尘的超细粉动态计量投料系统，具有密封的计量送料空间，包括相互连通的投料站10、输送计量机构和负压动力机构，投料站10电连接有总控制器11，总控制器11电连接有计量控制器12和负压控制器13，计量控制器12与输送计量机构电连接，负压控制器13与负压动力机构电连接；The present invention discloses a dust-proof ultrafine powder dynamic metering feeding system, which has a sealed metering feeding space, including a feeding station 10, a conveying metering mechanism and a negative pressure power mechanism that are interconnected, the feeding station 10 is electrically connected to a master controller 11, the master controller 11 is electrically connected to a metering controller 12 and a negative pressure controller 13, the metering controller 12 is electrically connected to the conveying metering mechanism, and the negative pressure controller 13 is electrically connected to the negative pressure power mechanism;
输送计量机构包括支架20，支架20的上下分别设有第一称重模块201和第二称重模块202，第一称重模块201的称重部固定有承载转运结构21，第二称重模块202的称重部固定有增重计量仓22，投料站10的输出端与承载转运结构21的输入端连接，承载转运结构21的输出端与增重计量仓22的输入端连接，增重计量仓22的输出端连接有出料管23；The conveying and metering mechanism includes a bracket 20, and a first weighing module 201 and a second weighing module 202 are respectively provided above and below the bracket 20, a load-bearing and transporting structure 21 is fixed to the weighing part of the first weighing module 201, and a weight-increasing and metering bin 22 is fixed to the weighing part of the second weighing module 202, the output end of the feeding station 10 is connected to the input end of the load-bearing and transporting structure 21, the output end of the load-bearing and transporting structure 21 is connected to the input end of the weight-increasing and metering bin 22, and the output end of the weight-increasing and metering bin 22 is connected to a discharge pipe 23;
负压动力机构包括通过首尾连通的真空输送机30、负压储罐31、过滤密封罐32、负压源33，即真空输送机30的输入端与负压储罐31的输出端连接、负压储罐31的输入端与过滤密封罐32的输出端连接、过滤密封罐32的输入端与负压源33的输出端连接，真空输送机30的输出端与承载转运结构21连接，负压储罐31的底部连通有集尘箱34，过滤密封罐32内设有粉尘过滤器321；The negative pressure power mechanism includes a vacuum conveyor 30, a negative pressure storage tank 31, a filter sealed tank 32, and a negative pressure source 33 connected end to end, that is, the input end of the vacuum conveyor 30 is connected to the output end of the negative pressure storage tank 31, the input end of the negative pressure storage tank 31 is connected to the output end of the filter sealed tank 32, the input end of the filter sealed tank 32 is connected to the output end of the negative pressure source 33, the output end of the vacuum conveyor 30 is connected to the load-bearing transfer structure 21, the bottom of the negative pressure storage tank 31 is connected to a dust collecting box 34, and a dust filter 321 is provided in the filter sealed tank 32;
投料站10的顶部连通有气压平衡管道40，气压平衡管道40分别与承载转运结构21、增重计量仓22、集尘箱34实现连通，优选地，气压平衡管道40中设有用于导通和截止的气压平衡阀门。The top of the feeding station 10 is connected with an air pressure balance pipe 40, which is respectively connected with the load-bearing transfer structure 21, the weight-increasing metering bin 22, and the dust collecting box 34. Preferably, an air pressure balance valve for conduction and cutoff is provided in the air pressure balance pipe 40.
本发明的运作过程是：负压源33工作，通过过滤密封罐32、负压储罐31将负压动力传递到承载转运结构21和增重计量仓22中，确保本发明送料系统具有一个负压的内部环境；投料站10中的超细粉进入承载转运结构21中，再进入增重计量仓22中并通过出料管23输出，第一称重模块201和第二称模块202分别测得承载转运结构21和增重计量仓22的重量，根据第一称重模块201和第二称重模块202的读数变化调整承载转运结构21的转运速度，从而有效确保出料管23的输出流量能够配合其连接的下一步工序的需求，计量可靠、精确；由于单颗超细粉的体积和重量都极小，负压动力机构在给输送计量机构提供负压动力的过程中，会有少量超细粉进入负压动力机构中，粉尘过滤器321能够有效过滤超细粉，防止超细粉进入负压源33，过滤出的超细粉被储存于集尘箱34中，可以提高超细粉的利用率；投料站10由于输出超细粉而内部气压不断降低，承载转运结构21在转运调控超细粉的过程中其内部气压也不断变化，增重计量仓22在接受超细粉时其内部气压不断增大，集尘箱34不断收集被过滤的超细粉时其内部气压也不断增大，气压平衡管道40能够有机地平衡投料站10、承载转运结构21、增重计量仓22和集尘箱34之间的气压，从而确保本发明的送料动作顺畅可靠，还能有效防止发生扬尘。The operation process of the present invention is: the negative pressure source 33 works, and the negative pressure power is transmitted to the load-bearing transfer structure 21 and the weight-gaining metering bin 22 through the filtering sealing tank 32 and the negative pressure storage tank 31, so as to ensure that the feeding system of the present invention has an internal environment with a negative pressure; the ultrafine powder in the feeding station 10 enters the load-bearing transfer structure 21, and then enters the weight-gaining metering bin 22 and is output through the discharge pipe 23, and the first weighing module 201 and the second weighing module 202 respectively measure the weight of the load-bearing transfer structure 21 and the weight-gaining metering bin 22, and adjust the transfer speed of the load-bearing transfer structure 21 according to the reading changes of the first weighing module 201 and the second weighing module 202, so as to effectively ensure that the output flow of the discharge pipe 23 can meet the needs of the next step of the process connected thereto, and the metering is reliable and accurate; because the volume and weight of a single ultrafine powder are extremely small, the negative pressure power mechanism is in the feeding and output In the process of providing negative pressure power by the metering mechanism, a small amount of ultrafine powder will enter the negative pressure power mechanism. The dust filter 321 can effectively filter the ultrafine powder to prevent the ultrafine powder from entering the negative pressure source 33. The filtered ultrafine powder is stored in the dust box 34, which can improve the utilization rate of the ultrafine powder; the internal air pressure of the feeding station 10 is continuously reduced due to the output of ultrafine powder, and the internal air pressure of the load-bearing and transporting structure 21 is also continuously changing during the transportation and regulation of the ultrafine powder. The internal air pressure of the weight-increasing and metering bin 22 is continuously increasing when receiving the ultrafine powder, and the internal air pressure of the dust box 34 is continuously increasing when continuously collecting the filtered ultrafine powder. The air pressure balance pipe 40 can organically balance the air pressure between the feeding station 10, the load-bearing and transporting structure 21, the weight-increasing and metering bin 22 and the dust box 34, thereby ensuring that the feeding action of the present invention is smooth and reliable, and can also effectively prevent the occurrence of dust.
本发明采用负压和重力实现转运，同时设计可靠的气压平衡结构，能够有效防止超细粉喷粉而造成环境污染，防止环境中的工作人员健康受影响，还能确保环境中各种装置的使用寿命，安全性能高，且节省材料，系统整体的使用寿命长，还能防止因喷粉而影响实际计量的超细粉总量，配合特殊的计量机构，能够实现可靠的高精度动态计量。The present invention adopts negative pressure and gravity to realize transfer, and designs a reliable air pressure balance structure at the same time, which can effectively prevent the environmental pollution caused by the spraying of ultrafine powder, prevent the health of the workers in the environment from being affected, and ensure the service life of various devices in the environment. It has high safety performance and saves materials. The service life of the whole system is long, and the total amount of ultrafine powder actually measured can be prevented from being affected by the spraying. With the special metering mechanism, reliable high-precision dynamic metering can be achieved.
本实施例中，承载转运结构21包括失重计量仓211和计量螺杆212，失重计量仓211的输出端与计量螺杆212的输入端连接，失重计量仓211的输入端为承载转运结构21的输入端，计量螺杆212的输出端为承载转运结构21的输出端失重计量仓211主要用于承载超细粉，计量螺杆212用于转运超细粉，同时计量螺杆212还能够控制超细粉的转运速度。In this embodiment, the load-bearing and transporting structure 21 includes a loss-in-weight metering bin 211 and a metering screw 212. The output end of the loss-in-weight metering bin 211 is connected to the input end of the metering screw 212. The input end of the loss-in-weight metering bin 211 is the input end of the load-bearing and transporting structure 21, and the output end of the metering screw 212 is the output end of the load-bearing and transporting structure 21. The loss-in-weight metering bin 211 is mainly used for carrying ultrafine powder, and the metering screw 212 is used for transporting ultrafine powder. At the same time, the metering screw 212 can also control the transport speed of the ultrafine powder.
为进一步提高超细粉在本发明送料系统中传送的顺畅性，本实施例中，失重计量仓211内设有第一搅拌结构213，优选地，第一搅拌结构213为连接有动力源的搅拌桨，第一搅拌结构213通过搅拌失重计量仓211中的超细粉防止发生堵塞。In order to further improve the smoothness of the transmission of the ultrafine powder in the feeding system of the present invention, in this embodiment, a first stirring structure 213 is provided in the weight loss metering bin 211. Preferably, the first stirring structure 213 is a stirring paddle connected to a power source. The first stirring structure 213 prevents blockage by stirring the ultrafine powder in the weight loss metering bin 211.
本实施例中，增重计量仓22内设有第二搅拌结构221，优选地，第二搅拌结构221为连接有动力源的搅拌桨，第二搅拌结构221通过搅拌增重计量仓22中的超细粉防止发生堵塞。In this embodiment, a second stirring structure 221 is provided in the weight-gaining metering bin 22. Preferably, the second stirring structure 221 is a stirring paddle connected to a power source. The second stirring structure 221 prevents blockage by stirring the ultrafine powder in the weight-gaining metering bin 22.
本实施例中，计量螺杆212的输出端通过软管222与增重计量仓22的输入端连接，计量螺杆212、增重计量仓22分别与软管222的连接处均设有防漏阀门。在软管222脱落的时候，及时关闭两个防漏阀门能够有效防止计量螺杆212和增重计量仓22发生扬尘。In this embodiment, the output end of the metering screw 212 is connected to the input end of the weight-added metering bin 22 through a hose 222, and leak-proof valves are provided at the connection between the metering screw 212 and the weight-added metering bin 22 and the hose 222. When the hose 222 falls off, closing the two leak-proof valves in time can effectively prevent the metering screw 212 and the weight-added metering bin 22 from generating dust.
为进一步提高本发明送料系统的安全性能，本实施例中，负压储罐31设有负压表312，通过负压表312监测负压储罐31中的气压，防止本发明送料系统中各个部分的气压发生突变，从而提高安全性。In order to further improve the safety performance of the feeding system of the present invention, in this embodiment, the negative pressure storage tank 31 is provided with a negative pressure gauge 312, and the air pressure in the negative pressure storage tank 31 is monitored by the negative pressure gauge 312 to prevent sudden changes in the air pressure of various parts of the feeding system of the present invention, thereby improving safety.
为提高本发明送料系统的使用寿命，本实施例中，真空输送机30与负压储罐31之间设有第一阀门313，过滤密封罐32连接有反吹装置322。本发明送料系统不使用时，负压源33停止工作，关闭第一阀门313，反吹装置322往过滤密封罐32吹气，积聚于粉尘过滤器321中的超细粉到达集尘箱34，防止超细粉积聚过多而堵塞粉尘过滤器321。In order to improve the service life of the feeding system of the present invention, in this embodiment, a first valve 313 is provided between the vacuum conveyor 30 and the negative pressure storage tank 31, and the filter sealing tank 32 is connected to a back-blowing device 322. When the feeding system of the present invention is not in use, the negative pressure source 33 stops working, the first valve 313 is closed, and the back-blowing device 322 blows air into the filter sealing tank 32, so that the ultrafine powder accumulated in the dust filter 321 reaches the dust collecting box 34, thereby preventing the ultrafine powder from accumulating too much and clogging the dust filter 321.
本实施例中，气压平衡管道40与承载转运结构21的连接处设有第二阀门401，优选地，气压平衡管道40与增重计量仓22的连接处设有第三阀门221。In this embodiment, a second valve 401 is provided at the connection between the air pressure balance pipeline 40 and the load-bearing transfer structure 21 . Preferably, a third valve 221 is provided at the connection between the air pressure balance pipeline 40 and the weight-added metering bin 22 .
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.
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