CN110203703A - A kind of continuous suction system of vacuum and feeding method - Google Patents
A kind of continuous suction system of vacuum and feeding method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 100
- 239000000109 continuous material Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000007664 blowing Methods 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 239000010419 fine particle Substances 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 239000003245 coal Substances 0.000 abstract description 2
- 239000003814 drug Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 4
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen 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
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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
- B65G53/52—Adaptations of pipes or tubes
- B65G53/521—Adaptations of pipes or tubes means for preventing the accumulation or for removal of deposits
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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
- B65G53/60—Devices for separating the materials from propellant gas
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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
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
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Abstract
本发明公开了一种真空连续吸料系统及方法，其中，真空连续吸料系统包括真空泵、两套旋风分离器、输料罐、输送机和PLC控制器；真空泵的进口、出口分别与旋风分离器、出气管连接，旋风分离器的出气口上还安装有布袋除尘器；旋风分离器的进口连接有吸料主管，吸料主管通过一三通分别连接有防塞支管和吸料支管，吸料支管、防塞支管上分别安装有吸料阀、防塞阀，旋风分离器底部设置有与输料罐连通的下料口，在下料口上安装有下料阀；输料罐底部设置有输料口，输料口与输送机的进料口连通，在输料口上安装有输料阀；PLC控制器控制整个系统的运行。本发明运行过程高效、安全又稳定，适用于原材料为粉末的医药、食品、化工、生产和煤粉供料领域。
The invention discloses a vacuum continuous material suction system and method, wherein the vacuum continuous material suction system includes a vacuum pump, two sets of cyclone separators, a material delivery tank, a conveyor and a PLC controller; the inlet and outlet of the vacuum pump are separated from the cyclone respectively The air outlet of the cyclone separator is also connected with a bag filter; the inlet of the cyclone separator is connected with a suction main pipe, and the suction main pipe is respectively connected with an anti-blocking branch pipe and a material suction branch pipe through a three-way connection. Suction valves and anti-clogging valves are respectively installed on the branch pipes and anti-blocking branch pipes. The bottom of the cyclone separator is provided with a discharge port connected with the material delivery tank, and a discharge valve is installed on the discharge port; the bottom of the material delivery tank is provided with a material delivery port. The feeding port is connected with the feeding port of the conveyor, and a feeding valve is installed on the feeding port; the PLC controller controls the operation of the whole system. The operation process of the invention is efficient, safe and stable, and is suitable for the fields of medicine, food, chemical industry, production and pulverized coal supply where the raw material is powder.
Description
技术领域technical field
本发明涉及气力输送设备技术领域，尤其是一种真空连续吸料系统及送料方法。The invention relates to the technical field of pneumatic conveying equipment, in particular to a vacuum continuous material suction system and a material feeding method.
背景技术Background technique
在工业生产中，常用到粉末状的原材料，如果依靠人力去运输和投料，既费人力物力，还容易造成原料泄漏，原料泄漏不仅污染环境，还危害人的健康，更严重的导致安全事故的发生。In industrial production, powdery raw materials are often used. If the transportation and feeding are carried out by manpower, it will not only consume manpower and material resources, but also easily cause leakage of raw materials. Leakage of raw materials not only pollutes the environment, but also endangers human health, and more seriously leads to safety accidents. occur.
真空输料机是一种依靠真空吸力来输送物料的设备，现已广泛的应用于药品、食品、化工等产业中。然而现有的真空输料设备在运行过程中，吸料与下料过程不能同时进行；输送管道容易堵塞，导致输料机需要停机才能去疏通管道，造成生产效率低；旋风分离器的过滤效果不好，使得真空泵吸入的空气含有粉尘，从而损伤真空泵对设备造成威胁；下料过程压力不稳定，导致下料不顺畅，影响供料的稳定性。Vacuum conveyor is a kind of equipment that relies on vacuum suction to convey materials. It has been widely used in pharmaceutical, food, chemical and other industries. However, during the operation of the existing vacuum conveying equipment, the suction and unloading processes cannot be carried out at the same time; the conveying pipeline is easily blocked, causing the conveyor to be shut down to dredge the pipeline, resulting in low production efficiency; the filtration effect of the cyclone separator Not good, the air inhaled by the vacuum pump contains dust, which will damage the vacuum pump and pose a threat to the equipment; the pressure during the feeding process is unstable, resulting in unsmooth feeding and affecting the stability of the feeding.
发明内容Contents of the invention
本发明的目的在于克服上述已有技术的不足，提供一种可实现连续吸料、下料，提高了输送效率的真空连续吸料系统及方法。The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a vacuum continuous material suction system and method that can realize continuous material suction and discharge, and improve the conveying efficiency.
为了实现上述目的，本发明采用的技术方案是：一种真空连续吸料系统，其特征在于：包括真空泵、旋风分离器、输料罐、输送机和PLC控制器；真空泵的进口与旋风分离器的出气口通过吸气管连接，真空泵的出气口连接有一出气管，所述旋风分离器的出气口上安装有一布袋除尘器；In order to achieve the above object, the technical solution adopted in the present invention is: a vacuum continuous material suction system, characterized in that: comprising a vacuum pump, a cyclone separator, a material delivery tank, a conveyor and a PLC controller; the inlet of the vacuum pump and the cyclone separator The air outlet of the vacuum pump is connected through a suction pipe, the air outlet of the vacuum pump is connected with an air outlet pipe, and a bag filter is installed on the air outlet of the cyclone separator;
进一步地，所述旋风分离器的进口连接有一吸料主管，所述吸料主管通过一三通分别连接有防塞支管和吸料支管，吸料支管、防塞支管上分别安装有吸料阀、防塞阀，旋风分离器底部设置有与输料罐连通的下料口，在下料口上安装有下料阀；Further, the inlet of the cyclone separator is connected with a suction main pipe, and the suction main pipe is respectively connected with an anti-clogging branch pipe and a material suction branch pipe through a tee, and a suction valve and an anti-clogging branch pipe are respectively installed on the suction branch pipe and the anti-clogging branch pipe. Valve, the bottom of the cyclone separator is provided with a discharge port connected with the material transfer tank, and a discharge valve is installed on the discharge port;
进一步地，所述输料罐内壁上设置有第一上限位传感器和第一下限料位传感器，所述输料罐底部设置有输料口，输料口与输送机的进料口连通，在输料口上安装有输料阀；Further, a first upper limit sensor and a first lower limit material level sensor are provided on the inner wall of the material delivery tank, a material delivery port is provided at the bottom of the material delivery tank, and the material delivery port communicates with the feed port of the conveyor. A delivery valve is installed on the delivery port;
进一步地，所述旋风分离器设有两套，所述真空泵、真空阀、下料阀、输料阀、防塞阀、吸料阀、输料机、第一上限位传感器和第一下限料位传感器均与PLC控制器电连接。Further, the cyclone separator is provided with two sets, the vacuum pump, the vacuum valve, the feeding valve, the feeding valve, the anti-clogging valve, the suction valve, the feeding machine, the first upper limit sensor and the first lower limit material level The sensors are all electrically connected with the PLC controller.
进一步地，所述输料罐与旋风分离器顶部之间还通过一泄压管连通，在泄压管上连接有一泄压阀。Further, a pressure relief pipe is also connected between the material transfer tank and the top of the cyclone separator, and a pressure relief valve is connected to the pressure relief pipe.
进一步地，所述真空阀、下料阀、输料阀、防塞阀、吸料阀和泄压阀为电磁阀或电动阀。Further, the vacuum valve, feeding valve, feeding valve, anti-clogging valve, suction valve and pressure relief valve are electromagnetic valves or electric valves.
进一步地，所述旋风分离器设有两套。Further, there are two sets of cyclone separators.
进一步地，所述布袋除尘器的滤芯为圆筒状，滤芯出气口处设置有吹气管，吹气管与吹气阀连接。Further, the filter element of the bag filter is cylindrical, and an air blowing pipe is provided at the air outlet of the filter element, and the air blowing pipe is connected to an air blowing valve.
进一步地，所述旋风分离器出气口上安装有一连通内腔的中心管，所述吸气管与中心管连接，所述布袋除尘器安装在中心管内。Further, a central pipe communicating with the inner cavity is installed on the air outlet of the cyclone separator, the suction pipe is connected with the central pipe, and the bag filter is installed in the central pipe.
进一步地，所述旋风分离器内腔上下部分别安装有第一上限位传感器和第一下限料位传感器。Further, a first upper limit sensor and a first lower limit material level sensor are respectively installed on the upper and lower parts of the inner cavity of the cyclone separator.
进一步地，所述吸料支管入口处连接有软管。Further, a hose is connected to the inlet of the suction branch pipe.
本发明还公开一种采用上述真空连续吸料系统的送料方法，其特征在于：包括如下步骤：The present invention also discloses a feeding method using the above-mentioned vacuum continuous suction system, which is characterized in that it includes the following steps:
S1：初始准备，将吸料支管放入料仓中，连接好系统各部件，并使所有阀门处于关闭状态；S1: Initial preparation, put the suction branch pipe into the silo, connect all parts of the system, and keep all valves closed;
S2：启动设备，系统通过PLC控制器打开其中一套旋风分离器对应的真空阀、吸料阀，真空泵开始工作，通过吸气管把旋风分离器内的空气抽走，使得物料在负压的作用下由吸料支管、吸料主管吸入旋风分离器中，在离心力的作用下实现气固分离，大颗粒物料向下沉积，空气和微小颗粒物料沿旋风分离器轴心形成向上的流场，空气气流被真空泵吸走，较小的物料颗粒被布袋除尘器收集；当物料到达旋风分离器的上限位时，系统通过PLC控制器关闭吸料阀，同时打开防塞阀，旋风分离器把吸料管中存留的物料吸走后停止吸料，通过吸走吸料管中存留的物料，完成后关闭防塞阀并打开下料阀、布袋除尘器的吹气阀，将旋风分离器内腔中的物料输送到输料罐中；当下完料时，第二下限料位传感器将信号传给PLC控制器，关闭下料阀停止下料，等待下次吸料，如此循环；S2: Start the equipment, the system opens the vacuum valve and suction valve corresponding to one of the cyclone separators through the PLC controller, the vacuum pump starts to work, and the air in the cyclone separator is sucked away through the suction pipe, so that the material is under negative pressure. Under the action, the suction branch pipe and the suction main pipe are sucked into the cyclone separator, and the gas-solid separation is realized under the action of the centrifugal force, the large particle material is deposited downward, and the air and the micro particle material form an upward flow field along the axis of the cyclone separator. The air flow is sucked away by the vacuum pump, and the smaller material particles are collected by the bag filter; when the material reaches the upper limit of the cyclone separator, the system closes the suction valve through the PLC controller, and at the same time opens the anti-clogging valve, and the cyclone separator sucks the material After sucking away the material remaining in the pipe, stop the suction. After sucking away the material remaining in the suction pipe, close the anti-clogging valve and open the feeding valve and the blowing valve of the bag filter to remove the dust in the inner cavity of the cyclone separator. The material is transported to the conveying tank; when the material is finished, the second lower limit material level sensor sends a signal to the PLC controller, closes the material valve to stop the material, and waits for the next suction, so the cycle;
S3：在步骤S2中关闭防塞阀时，打开另一套旋风分离器对应的真空阀、吸料阀，重复步骤S3的吸料过程；S3: When closing the anti-clogging valve in step S2, open the vacuum valve and material suction valve corresponding to another set of cyclone separators, and repeat the material suction process of step S3;
S4：当第一下限料位传感器检测到物料时，系统控制打开输料阀和输送机，将物料输送至生产线上。S4: When the first lower limit material level sensor detects the material, the system controls to open the delivery valve and the conveyor to deliver the material to the production line.
本发明的有益效果是：通过设置有两个旋风分离器，可交互吸料、下料，可实现连续吸料、下料，提高了输运效率；通过设置有防塞支管，可防止因吸料停止物料在管道中沉积所造成的管道堵塞，从而避免了管道堵塞带来的麻烦；通过设置有泄压管，使得输料罐保持微负压状态，且旋风分离器在下料过程中，布袋除尘器的吹灰管开始吹灰，保证了布袋除尘器的过滤效果，同时和输料罐的负压相配合，旋风分离器为正压，为下料过程提供动力，实现下料过程快速又稳定；输料过程为负压输送，可防止物料泄漏，减少了粉尘对空气的污染，保持工作环境清洁，有利于人体健康。另外，负压过程含氧量低，实现了减少物料的变质，特别的，当物料为可燃物时，可防爆；本设备由PLC控制器全程控制，可实现自动化，减少生产成本。The beneficial effects of the present invention are: by being provided with two cyclone separators, materials can be sucked and unloaded alternately, continuous suction and unloading can be realized, and the transportation efficiency is improved; Stop the pipeline blockage caused by the deposition of materials in the pipeline, thereby avoiding the trouble caused by the pipeline blockage; through the installation of a pressure relief pipe, the material delivery tank maintains a slight negative pressure state, and the cyclone separator is in the process of discharging, and the bag dust is removed The soot blowing pipe of the soot blower starts to blow soot, which ensures the filtering effect of the bag filter. At the same time, it cooperates with the negative pressure of the conveying tank, and the cyclone separator is under positive pressure to provide power for the feeding process, so that the feeding process is fast and stable. ;The material conveying process is conveyed under negative pressure, which can prevent material leakage, reduce dust pollution to the air, keep the working environment clean, and is beneficial to human health. In addition, the oxygen content in the negative pressure process is low, which reduces the deterioration of the material. In particular, when the material is combustible, it can be explosion-proof; the equipment is fully controlled by a PLC controller, which can realize automation and reduce production costs.
本发明运行过程高效、安全又稳定，适用于原材料为粉末的医药、食品、化工、生产和煤粉供料领域。The operation process of the invention is efficient, safe and stable, and is suitable for the fields of medicine, food, chemical industry, production and pulverized coal supply where the raw material is powder.
附图说明Description of drawings
下面结合附图对本发明作进一步的详细说明。The present invention will be further described in detail below in conjunction with the accompanying drawings.
图1是本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
图2是图1中旋风分离器的连接状态示意图。Fig. 2 is a schematic diagram of the connection state of the cyclone separator in Fig. 1 .
1、出气管；2、真空泵；3、吸气管；4、输料罐；；5、泄压管；6、泄压阀；7、布袋除尘器；8、真空阀；9、吸料主管；91、吸料支管；10、中心管；11、第一上限料位传感器；110、第二上限料位传感器；12、旋风分离器；13、第一下限料位传感器；130、第二下限料位传感器；14、下料阀；15、下料口；16、输料阀；17、输料口；18、输料机；19、软管；20、吸料阀；21、防塞阀；22、防塞支管。1. Air outlet pipe; 2. Vacuum pump; 3. Suction pipe; 4. Material transfer tank; 5. Pressure relief pipe; 6. Pressure relief valve; 7. Bag filter; 8. Vacuum valve; 9. Suction supervisor ;91, material suction branch pipe; 10, center pipe; 11, first upper limit material level sensor; 110, second upper limit material level sensor; 12, cyclone separator; 13, first lower limit material level sensor; 130, second lower limit Material level sensor; 14, feeding valve; 15, feeding port; 16, feeding valve; 17, feeding port; 18, feeding machine; 19, hose; 20, suction valve; 21, anti-clogging valve; 22, anti-blocking branch pipe.
具体实施方式Detailed ways
如图1、2所示，本发明一种真空连续吸料系统，包括真空泵2、旋风分离器12、输料罐4、输送机18和PLC控制器；真空泵2的进口与旋风分离器12的出气口通过吸气管3连接，真空泵2的出气口连接有一出气管1，所述旋风分离器12的出气口上安装有一布袋除尘器7；As shown in Fig. 1, 2, a kind of vacuum continuous suction system of the present invention comprises vacuum pump 2, cyclone separator 12, feed tank 4, conveyer 18 and PLC controller; The air outlet is connected by the suction pipe 3, the air outlet of the vacuum pump 2 is connected with an air outlet pipe 1, and a bag filter 7 is installed on the air outlet of the cyclone separator 12;
所述旋风分离器12的进口连接有一吸料主管9，所述吸料主管9通过一三通分别连接有防塞支管22和吸料支管91，吸料支管91、防塞支管22上分别安装有吸料阀20、防塞阀21，旋风分离器12底部设置有与输料罐4连通的下料口15，在下料口15上安装有下料阀14；The inlet of the cyclone separator 12 is connected with a suction main pipe 9, and the suction main pipe 9 is respectively connected with an anti-clogging branch pipe 22 and a material suction branch pipe 91 through a tee, and a suction pipe 91 and an anti-clogging branch pipe 22 are respectively equipped with suction pipes. Feed valve 20, anti-clogging valve 21, the bottom of cyclone separator 12 is provided with a discharge port 15 communicated with the material delivery tank 4, and a discharge valve 14 is installed on the discharge port 15;
所述输料罐4内壁上设置有第一上限位传感器11和第一下限料位传感器13，所述输料罐4底部设置有输料口17，输料口17与输送机18的进料口连通，在输料口17上安装有输料阀16；The inner wall of the conveying tank 4 is provided with a first upper limit sensor 11 and a first lower limit material level sensor 13, and the bottom of the conveying tank 4 is provided with a feeding port 17, and the feeding port 17 and the conveyor 18 are connected to each other. The port is connected, and a feed valve 16 is installed on the feed port 17;
所述旋风分离器12设有两套，所述真空泵2、真空阀8、下料阀14、输料阀16、防塞阀21、吸料阀20、输料机18、第一上限位传感器11和第一下限料位传感器13均与PLC控制器电连接。The cyclone separator 12 is provided with two sets, the vacuum pump 2, the vacuum valve 8, the feeding valve 14, the feeding valve 16, the anti-plug valve 21, the suction valve 20, the feeder 18, the first upper limit sensor 11 and the first lower limit material level sensor 13 are electrically connected to the PLC controller.
所述输料罐4与旋风分离器12顶部之间还通过一泄压管5连通，在泄压管上连接有一泄压阀6。A pressure relief pipe 5 is also connected between the material delivery tank 4 and the top of the cyclone separator 12, and a pressure relief valve 6 is connected to the pressure relief pipe.
所述真空阀8、下料阀14、输料阀16、防塞阀21、吸料阀20和泄压阀6为电磁阀或电动阀。The vacuum valve 8, feeding valve 14, feeding valve 16, anti-clogging valve 21, suction valve 20 and pressure relief valve 6 are solenoid valves or electric valves.
所述旋风分离器12设有两套。The cyclone separator 12 is provided with two sets.
所述布袋除尘器7的滤芯为圆筒状，滤芯出气口处设置有吹气管，吹气管与吹气阀连接。The filter element of the bag filter 7 is cylindrical, and the air outlet of the filter element is provided with an air blowing pipe, which is connected with an air blowing valve.
所述旋风分离器出气口上安装有一连通内腔的中心管10，所述吸气管3与中心管10连接，所述布袋除尘器7安装在中心管10内。A central pipe 10 communicating with the inner cavity is installed on the air outlet of the cyclone separator, the suction pipe 3 is connected with the central pipe 10 , and the bag filter 7 is installed in the central pipe 10 .
所述旋风分离器12内腔上下部分别安装有第一上限位传感器110和第一下限料位传感器130。A first upper limit sensor 110 and a first lower limit material level sensor 130 are respectively installed on the upper and lower parts of the inner cavity of the cyclone separator 12 .
所述吸料支管91入口处连接有软管19。A hose 19 is connected to the inlet of the suction branch pipe 91 .
本发明还公开一种采用上述真空连续吸料系统的送料方法，包括如下步骤：S1：初始准备，将吸料支管91放入料仓中，连接好系统各部件，并使所有阀门处于关闭状态。The present invention also discloses a material feeding method using the vacuum continuous material suction system, which includes the following steps: S1: initial preparation, put the material suction branch pipe 91 into the material bin, connect the various components of the system, and make all the valves in the closed state .
S2：启动设备，系统通过PLC控制器打开其中一套旋风分离器对应的真空阀8、吸料阀20，真空泵2开始工作，通过吸气管3把旋风分离器12内的空气抽走，使得物料在负压的作用下由吸料支管91、吸料主管9吸入旋风分离器12中，在离心力的作用下实现气固分离，大颗粒物料向下沉积，空气和微小颗粒物料沿旋风分离器轴心形成向上的流场，空气气流被真空泵2吸走，较小的物料颗粒被布袋除尘器7收集。S2: Start the equipment, the system opens the vacuum valve 8 and the suction valve 20 corresponding to one set of cyclone separators through the PLC controller, the vacuum pump 2 starts to work, and the air in the cyclone separator 12 is sucked away through the suction pipe 3, so that Under the action of negative pressure, the material is sucked into the cyclone separator 12 by the suction branch pipe 91 and the suction main pipe 9, and the gas-solid separation is realized under the action of centrifugal force. The axis forms an upward flow field, the air flow is sucked away by the vacuum pump 2, and the smaller material particles are collected by the bag filter 7.
如图1所示，当左侧旋风分离器12的物料到达的上限位时，系统通过PLC控制器关闭吸料阀20，同时打开防塞阀21，旋风分离器12把吸料管9中存留的物料吸走后停止吸料，通过吸走吸料管9中存留的物料，完成后关闭防塞阀21并打开下料阀14、布袋除尘器7的吹气阀（未图示），将旋风分离器12内腔中的物料输送到输料罐4中。同时让右侧的旋风分离器开始吸料，当左侧旋风分离器下料完后，第二下限料位传感器130将信号传给PLC控制器，左侧吸料罐关闭下料阀停止下料，等待右侧吸料罐吸料完成后继续吸料，由此循环，使得两个吸料罐交互吸料、下料，实现了自动的连续吸料，下料，提高了工作效率，降低了劳动强度。As shown in Figure 1, when the material of the left cyclone separator 12 reaches the upper limit, the system closes the suction valve 20 through the PLC controller, and opens the anti-clogging valve 21 at the same time, and the cyclone separator 12 removes the remaining material in the suction pipe 9. After the material is sucked away, the suction is stopped, and the material remaining in the suction pipe 9 is sucked away. After completion, the anti-clogging valve 21 is closed and the feeding valve 14 and the blowing valve (not shown) of the bag filter 7 are opened to separate the cyclone. The material in the inner cavity of the device 12 is delivered to the delivery tank 4. At the same time, let the cyclone separator on the right start to suck material. When the left cyclone separator finishes discharging, the second lower limit material level sensor 130 sends a signal to the PLC controller, and the left suction tank closes the discharging valve to stop discharging. , wait for the suction tank on the right side to continue to absorb material, and thus circulate, so that the two suction tanks alternately absorb and unload materials, realizing automatic continuous material suction and unloading, which improves work efficiency and reduces Labor intensity.
S3：在步骤S2中关闭防塞阀21时，打开另一套旋风分离器对应的真空阀8、吸料阀20，重复步骤S2的吸料过程；S3: When closing the anti-clogging valve 21 in step S2, open the vacuum valve 8 and the material suction valve 20 corresponding to another cyclone separator, and repeat the material suction process of step S2;
S4：当第一下限料位传感器13检测到物料时，系统控制打开输料阀16和输送机18，将物料输送至生产线上。实现了吸料与输料可同时进行。S4: When the first lower limit material level sensor 13 detects the material, the system controls to open the delivery valve 16 and the conveyor 18 to deliver the material to the production line. Suction and delivery can be realized at the same time.
以上内容仅用以说明本发明的技术方案，本领域的普通技术人员对本发明的技术方案进行的简单修改或者等同替换，均不脱离本发明技术方案的实质和范围。The above content is only used to illustrate the technical solution of the present invention. Simple modifications or equivalent replacements to the technical solution of the present invention by those skilled in the art will not depart from the essence and scope of the technical solution of the present invention.
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