CN206288702U - A kind of mineral grain eddy flow air-transport system - Google Patents
A kind of mineral grain eddy flow air-transport system Download PDFInfo
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 39
- 239000011707 mineral Substances 0.000 title claims abstract description 39
- 239000002245 particle Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000001133 acceleration Effects 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 17
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000008021 deposition Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型涉及气力输送技术领域，尤其涉及一种能够产生旋流并对旋流进行补给的矿物颗粒气力输送系统。The utility model relates to the technical field of pneumatic conveying, in particular to a mineral particle pneumatic conveying system capable of generating swirling flow and replenishing the swirling flow.
背景技术Background technique
气力输送是利用管道中气体的动能或压能使固态颗粒物料按照预定的管线进行输送的运输方式，根据气体的压力状态可以分为正压输送和负压输送，根据物料与气体的质量比可以分为稀相输送和浓相输送。矿物颗粒气力输送技术需要物料在管路内安全、高效和长距离输送，并且保证物料不发生显著破碎，不形成管路堵塞，通常选用正压输送系统浓相低速输送。虽然气力输送技术具有设备简单、占用空间小、配置灵活和易于自动化控制等优势，但是由于矿物颗粒的粒度较大，并且形状差异明显，在气力输送过程中会产生很大的能量损耗，并且极易出现矿物颗粒沉积和管路堵塞等现象，同时矿物颗粒与管道碰撞会导致管路磨损和物料破碎，影响输送效率和输送系统的使用寿命，这些问题都限制了气力输送技术在矿山领域的应用。Pneumatic conveying is a transportation method that uses the kinetic energy or pressure energy of the gas in the pipeline to transport the solid granular material according to the predetermined pipeline. According to the pressure state of the gas, it can be divided into positive pressure conveying and negative pressure conveying. According to the mass ratio of material and gas, it can be Divided into dilute phase transport and dense phase transport. Mineral particle pneumatic conveying technology requires safe, efficient and long-distance transportation of materials in the pipeline, and ensures that the materials will not be significantly broken and the pipeline will not be blocked. Usually, the positive pressure conveying system is used for dense phase low-speed conveying. Although the pneumatic conveying technology has the advantages of simple equipment, small space occupation, flexible configuration and easy automatic control, due to the large particle size and obvious shape difference of the mineral particles, a large energy loss will be generated during the pneumatic conveying process, and it is extremely Mineral particle deposition and pipeline blockage are prone to occur. At the same time, the collision between mineral particles and pipelines will cause pipeline wear and material crushing, which will affect the conveying efficiency and the service life of the conveying system. These problems limit the application of pneumatic conveying technology in the mining field .
旋流气力输送作为减缓颗粒沉降和管路堵塞的有效途径，通过在管路中改变输送气流的形式，获得由轴向速度和切向速度结合的涡旋气流，实现输送颗粒按照螺旋形式运动。但是，现有的旋流输送技术一般只能在气流入口位置产生旋流，无法实现输送过程的旋流补给，并且产生的旋流强度不易调整，难以适应矿物颗粒输送过程中的多样性需求，仍然不能有效解决颗粒沉积、管路堵塞、管路磨损和物料破碎等问题。As an effective way to slow down particle sedimentation and pipeline blockage, swirling pneumatic conveying can obtain a vortex airflow combining axial velocity and tangential velocity by changing the form of the conveying airflow in the pipeline, so that the conveying particles can move in a spiral form. However, the existing swirl conveying technology generally can only generate swirl at the air inlet position, and cannot realize swirl replenishment during the conveying process, and the generated swirl intensity is not easy to adjust, and it is difficult to adapt to the diverse needs of the mineral particle conveying process. It still cannot effectively solve the problems of particle deposition, pipeline blockage, pipeline wear and material crushing.
实用新型内容Utility model content
本实用新型的目的：提供一种可以降低矿物颗粒临界输送速度，减缓颗粒沉降和管路堵塞，减轻弯管磨损和颗粒破损，延长输送管路使用寿命的矿物颗粒旋流气力输送系统。The purpose of this utility model is to provide a mineral particle swirl pneumatic conveying system that can reduce the critical conveying speed of mineral particles, slow down particle settlement and pipeline blockage, reduce elbow wear and particle damage, and prolong the service life of the conveying pipeline.
为实现上述目的，本实用新型的具体方案如下：一种矿物颗粒旋流气力输送系统，包括供气装置、供料装置、输气管、补给起旋器、加速室、输料管和集料装置，供气装置与加速室之间设有旋流产生系统；In order to achieve the above purpose, the specific scheme of the utility model is as follows: a mineral particle swirl pneumatic conveying system, including an air supply device, a feeding device, a gas delivery pipe, a supply spinner, an acceleration chamber, a feeding pipe and a collecting device , there is a swirl flow generation system between the gas supply device and the acceleration chamber;
供气装置包括风机、储气罐和干燥器，供料装置包括破碎机、缓冲料仓和旋转供料器，旋流产生系统沿供气方向包括气体整流器和初始起旋器，本实用新型中的初始起旋器和补给起旋器均为2016年7月06日公开申请号201610212206.X的中国专利文献 “一种双向调节多用涡旋流补给起旋器”中的补给起旋器；The air supply device includes a fan, an air storage tank and a dryer. The feed device includes a crusher, a buffer silo and a rotary feeder. The swirl generation system includes a gas rectifier and an initial spinner along the air supply direction. In the utility model Both the initial spinner and the supply spinner are the supply spinners in the Chinese patent document "A Two-way Adjustable Multipurpose Vortex Flow Supply Spinner" published on July 06, 2016 with the application number 201610212206.X;
风机的出气口与储气罐的进气口连接，储气罐的出气口与干燥器的进气口连接，干燥器的出气口通过输气管分别与气体整流器的整流进气口和补给起旋器的补给进气口连接，气体整流器的出气口与初始起旋器的主进气口连接，初始起旋器的出气口与加速室的进气口连接；The air outlet of the fan is connected to the air inlet of the air storage tank, the air outlet of the air storage tank is connected to the air inlet of the dryer, and the air outlet of the dryer is respectively connected to the rectification air inlet and the supply of the gas rectifier through the air pipe. The supply air inlet of the gas rectifier is connected with the main air inlet of the initial spinner, and the gas outlet of the initial spinner is connected with the air inlet of the acceleration chamber;
破碎机、缓冲料仓和旋转供料器自上而下沿供料方向设置，缓冲料仓的出料端上粗下细呈锥筒形结构，破碎机的出料口与缓冲料仓的进料口连接，缓冲料仓的出料口与旋转供料器的进料口连接，旋转供料器的出料口与加速室的进料口连接；Crusher, buffer bin and rotary feeder are arranged from top to bottom along the feeding direction. The feed port is connected, the discharge port of the buffer silo is connected with the feed port of the rotary feeder, and the discharge port of the rotary feeder is connected with the feed port of the acceleration chamber;
加速室为三通结构，加速室的出气料口与输料管的进气料口连接，输料管上设置有若干补给起旋器，各补给起旋器沿输料方向间隔均匀设置，且在输料管的每段弯管前均设置有补给起旋器，输料管的出气料口与集料装置的进气料口连接，空气从集料装置的出气口排出。The acceleration chamber is a three-way structure, the air outlet of the acceleration chamber is connected with the inlet and outlet of the feeding pipe, and a number of supply spinners are arranged on the feeding pipe, and the supply spinners are evenly spaced along the feeding direction, and A supply spinner is provided before each bend of the feeding pipe, the air outlet of the feeding pipe is connected to the inlet and outlet of the collecting device, and the air is discharged from the outlet of the collecting device.
优选的，初始起旋器设在气体整流器和加速室之间，调整初始起旋器中的进气调节环的轴向位置使进气调节环的第一锥形密封面与初始起旋器壳体内壁的第二锥形密封面之间留有空隙，补给进气口设有螺塞并被螺塞密封；Preferably, the initial spinner is arranged between the gas rectifier and the acceleration chamber, and the axial position of the intake adjustment ring in the initial spinner is adjusted so that the first tapered sealing surface of the intake adjustment ring is in contact with the initial spinner shell. There is a gap between the second tapered sealing surfaces of the inner wall, and the supply air inlet is provided with a screw plug and is sealed by the screw plug;
供气装置提供干燥压缩空气进入气体整流器，干燥压缩空气在气体整流器中被调整为规则流动的空气，规则流动的空气从主进气口进入初始起旋器后，分别进入轴向气流通道和涡旋气流通道，形成空气旋流从出气口流出，空气旋流进入加速室中与矿物颗粒进行充分混合，使矿物颗粒在旋流场中按照螺旋形式沿输料管向集料装置方向运动。The air supply device provides dry compressed air to enter the gas rectifier. The dry compressed air is adjusted to regular flow air in the gas rectifier. After the regular flow air enters the initial swirler from the main air inlet, it enters the axial air flow channel and the vortex respectively. The swirling flow channel forms an air swirling flow out of the air outlet, and the air swirling flow enters the acceleration chamber to fully mix with the mineral particles, so that the mineral particles move in a spiral form along the delivery pipe to the direction of the collecting device in the swirling flow field.
优选的，各补给起旋器的补给进气口通过输气管与干燥器的出气口连接，调整补给起旋器中的进气调节环的轴向位置使进气调节环的第一锥形密封面与补给起旋器壳体内壁的第二锥形密封面接触密封；补给的气流由补给进气口进入涡旋气流通道，形成切向气流，与输料管中的料气混合气流汇合。Preferably, the supply inlet of each supply spinner is connected to the air outlet of the dryer through an air pipe, and the axial position of the intake adjustment ring in the supply spinner is adjusted so that the first taper of the intake adjustment ring is sealed. The surface is in contact with the second tapered sealing surface on the inner wall of the supply spinner shell; the supply air flow enters the vortex air flow channel from the supply air inlet to form a tangential air flow, which merges with the mixed gas flow in the feeding pipe.
本实用新型的有益效果：The beneficial effects of the utility model:
1、供气装置与加速室之间设有旋流产生系统，空气经由供气装置成为干燥压缩空气，干燥压缩空气进入旋流产生系统后形成空气旋流，空气旋流进入加速室；1. There is a swirl generation system between the air supply device and the acceleration chamber. The air becomes dry compressed air through the air supply device. The dry compressed air enters the swirl generation system to form an air swirl, and the air swirl enters the acceleration chamber;
矿物颗粒经由供料装置实现平稳匀速且均匀进入加速室，平稳均匀的矿物颗粒在加速室中与空气旋流进行充分混合，矿物颗粒被旋流场带动并沿输料管向集料装置方向运动，有效降低临界输送速度，减少输送系统的能量需求。The mineral particles enter the acceleration chamber at a stable and uniform speed through the feeding device. The stable and uniform mineral particles are fully mixed with the air swirl in the acceleration chamber, and the mineral particles are driven by the swirl field and move along the delivery pipe to the collection device. , effectively reduce the critical conveying speed and reduce the energy demand of the conveying system.
2、输料管上设置有若干补给起旋器，各补给起旋器沿输料方向间隔均匀设置；补给的气流由补给进气口进入涡旋气流通道，形成切向气流，与输料管中的料气混合气流汇合，增强矿物颗粒的螺旋运动，避免由于输料管中的旋流强度持续衰减而造成矿物颗粒沉积和管路堵塞。2. There are a number of supply spinners on the feeding pipe, and the feeding spinners are evenly spaced along the feeding direction; the supply airflow enters the vortex airflow channel from the supply air inlet to form a tangential airflow, which is connected with the feeding pipe. The mixed flow of material and gas in the feeder converges to enhance the spiral movement of mineral particles and avoid the deposition of mineral particles and pipeline blockage due to the continuous attenuation of the swirl strength in the feeding pipe.
3、在输料管的每段弯管前均设置有补给起旋器，补给的气流由补给进气口进入涡旋气流通道，形成切向气流，对输料管中的矿物颗粒产生扰动，改变矿物颗粒原有的速度，增强矿物颗粒弥散度，可以有效减缓颗粒与弯管壁面的正面冲击，减少颗粒破碎，使颗粒与管壁接触更均匀，减弱壁面磨损程度，延长管路寿命。3. There is a supply spinner before each bend of the delivery pipe, and the supply airflow enters the vortex airflow channel from the supply air inlet to form a tangential airflow, which disturbs the mineral particles in the delivery pipe. Changing the original velocity of mineral particles and enhancing the dispersion of mineral particles can effectively slow down the frontal impact of particles and the wall of the elbow, reduce particle breakage, make the contact between particles and the pipe wall more uniform, reduce the degree of wall wear, and prolong the life of the pipeline.
附图说明Description of drawings
图1是本实用新型的流程框图；Fig. 1 is a block flow diagram of the utility model;
图2是本实用新型的结构示意图；Fig. 2 is a structural representation of the utility model;
图3是初始起旋器的结构示意图；Fig. 3 is the structural representation of initial spinner;
图4是补给起旋器的结构示意图。Fig. 4 is a structural schematic diagram of the supply spinner.
具体实施方式detailed description
如图1-4所示，本实用新型的一种矿物颗粒旋流气力输送系统，包括供气装置、供料装置、输气管4、补给起旋器12、加速室10、输料管11和集料装置14，供气装置与加速室10之间设有旋流产生系统；As shown in Figures 1-4, a mineral particle swirl pneumatic conveying system of the present invention includes an air supply device, a feeding device, an air pipe 4, a supply spinner 12, an acceleration chamber 10, a feeding pipe 11 and A material collecting device 14, a swirl flow generating system is arranged between the air supply device and the acceleration chamber 10;
供气装置包括风机1、储气罐2和干燥器3，供料装置包括破碎机7、缓冲料仓8和旋转供料器9，旋流产生系统沿供气方向包括气体整流器5和初始起旋器6；The air supply device includes a fan 1, an air storage tank 2 and a dryer 3, the feed device includes a crusher 7, a buffer silo 8 and a rotary feeder 9, and the swirl generation system includes a gas rectifier 5 and an initial starting Spinner 6;
风机1的出气口与储气罐2的进气口连接，储气罐2的出气口与干燥器3的进气口连接，干燥器3的出气口通过输气管4分别与气体整流器5的整流进气口和补给起旋器12的补给进气口24连接，气体整流器5的出气口与初始起旋器6的主进气口连接，初始起旋器6的出气口与加速室10的进气口连接；The air outlet of the fan 1 is connected to the air inlet of the gas storage tank 2, the air outlet of the air storage tank 2 is connected to the air inlet of the dryer 3, and the air outlet of the dryer 3 is respectively rectified with the gas rectifier 5 through the air pipe 4. The air inlet is connected with the supply air inlet 24 of the supply spinner 12, the gas outlet of the gas rectifier 5 is connected with the main air inlet of the initial spinner 6, and the gas outlet of the initial spinner 6 is connected with the inlet of the acceleration chamber 10. Air port connection;
破碎机7、缓冲料仓8和旋转供料器9自上而下沿供料方向设置，缓冲料仓8的出料端上粗下细呈锥筒形结构，破碎机7的出料口与缓冲料仓8的进料口连接，缓冲料仓8的出料口与旋转供料器9的进料口连接，旋转供料器9的出料口与加速室10的进料口连接；Crusher 7, buffer bin 8 and rotary feeder 9 are arranged along the feeding direction from top to bottom. The feed port of the buffer bin 8 is connected, the discharge port of the buffer bin 8 is connected with the feed port of the rotary feeder 9, and the feed port of the rotary feeder 9 is connected with the feed port of the acceleration chamber 10;
加速室10为三通结构，加速室10的出气料口与输料管11的进气料口连接，输料管11上设置有若干补给起旋器12，各补给起旋器12沿输料方向间隔均匀设置，且在输料管11的每段弯管前均设置有补给起旋器12，输料管11的出气料口与集料装置14的进气料口连接，空气从集料装置14的出气口排出。The acceleration chamber 10 is a three-way structure, and the air outlet of the acceleration chamber 10 is connected with the inlet and outlet of the feeding pipe 11. The feeding pipe 11 is provided with a number of supply spinners 12, and each supply spinner 12 is along the feeding The direction intervals are evenly arranged, and a supply spinner 12 is provided before each bend of the feeding pipe 11. The air outlet of the feeding pipe 11 is connected with the inlet and outlet of the collecting device 14, and the air flows from the collecting The air outlet of the device 14 is exhausted.
优选的，初始起旋器6设在气体整流器5和加速室10之间，调整初始起旋器6中的进气调节环22的轴向位置使进气调节环22的第一锥形密封面17与初始起旋器6壳体内壁的第二锥形密封面16之间留有空隙，补给进气口18设有螺塞19并被螺塞19密封；Preferably, the initial spinner 6 is arranged between the gas rectifier 5 and the acceleration chamber 10, and the axial position of the intake adjustment ring 22 in the initial spinner 6 is adjusted so that the first tapered sealing surface of the intake adjustment ring 22 There is a gap between 17 and the second tapered sealing surface 16 of the inner wall of the shell of the initial spinner 6, and the supply air inlet 18 is provided with a screw plug 19 and is sealed by the screw plug 19;
供气装置提供干燥压缩空气进入气体整流器5，干燥压缩空气在气体整流器5中被调整为规则流动的空气，规则流动的空气从主进气口15进入初始起旋器6后，分别进入轴向气流通道20和涡旋气流通道23，形成空气旋流从出气口21流出，空气旋流进入加速室10中与矿物颗粒进行充分混合，使矿物颗粒在旋流场中按照螺旋形式沿输料管11向集料装置14方向运动。The air supply device provides dry compressed air into the gas rectifier 5, and the dry compressed air is adjusted to regular flow air in the gas rectifier 5. After the regular flow air enters the initial spinner 6 from the main air inlet 15, it enters the axial The air flow channel 20 and the vortex air flow channel 23 form an air swirl flow out from the air outlet 21, and the air swirl flow enters the acceleration chamber 10 to fully mix with the mineral particles, so that the mineral particles move along the delivery pipe in a spiral form in the swirl field. 11 moves towards the collecting device 14 directions.
优选的，各补给起旋器12的补给进气口24通过输气管4与干燥器3的出气口连接，调整补给起旋器12中的进气调节环27的轴向位置使进气调节环27的第一锥形密封面26与补给起旋器12壳体内壁的第二锥形密封面28接触密封；补给的气流由补给进气口24进入涡旋气流通道25，形成切向气流，与输料管11中的料气混合气流汇合。Preferably, the supply air inlet 24 of each supply spinner 12 is connected to the air outlet of the dryer 3 through the gas delivery pipe 4, and the axial position of the intake adjustment ring 27 in the supply spinner 12 is adjusted so that the intake adjustment ring The first tapered sealing surface 26 of 27 contacts and seals with the second tapered sealing surface 28 of the inner wall of the shell of the supply spinner 12; the supplied air flow enters the vortex air flow channel 25 from the supply air inlet 24 to form a tangential air flow, It merges with the mixed gas flow in the feed pipe 11.
本实用新型的工作过程为：The working process of the present utility model is:
空气通过风机1进入储气罐2形成压缩空气，压缩空气再经由干燥器3干燥后进入旋流产生系统，旋流产生系统沿供气方向包括气体整流器5和初始起旋器6，调整初始起旋器6中的进气调节环22的轴向位置使进气调节环22的第一锥形密封面17与初始起旋器6壳体内壁的第二锥形密封面16之间留有空隙，初始起旋器6的补给进气口18被螺塞19密封，干燥压缩空气首先通过气体整流器5进行整流并被调整为规则流动的空气，规则流动的空气从主进气口15进入初始起旋器6，空气在初始起旋器6中分别进入轴向气流通道20和涡旋气流通道23，形成空气旋流从出气口21流出，进入加速室10；The air enters the air storage tank 2 through the fan 1 to form compressed air, and then the compressed air is dried by the dryer 3 and then enters the swirl generation system. The swirl generation system includes a gas rectifier 5 and an initial spinner 6 along the air supply direction. The axial position of the air intake adjustment ring 22 in the spinner 6 leaves a gap between the first tapered sealing surface 17 of the air intake adjustment ring 22 and the second tapered sealing surface 16 of the inner wall of the initial spinner 6 shell , the supply air inlet 18 of the initial spinner 6 is sealed by a screw plug 19, the dry compressed air is firstly rectified by the gas rectifier 5 and adjusted to regular flow air, and the regular flow air enters from the main air inlet 15 from the initial stage In the initial spinner 6, the air enters the axial airflow channel 20 and the vortex airflow channel 23 respectively, forming an air swirl flow out from the air outlet 21 and entering the acceleration chamber 10;
破碎机7对矿物颗粒进行初步破碎，并经过缓冲料仓8和旋转供料器9实现均匀物料平稳匀速进入输送系统中的加速室10；在加速室10中空气旋流与矿物颗粒进行充分混合，使矿物颗粒在旋流场中按照螺旋形式沿输料管11向集料装置14方向运动；Crusher 7 preliminarily crushes mineral particles, and through buffer bin 8 and rotary feeder 9, the uniform material enters the acceleration chamber 10 in the conveying system at a stable and uniform speed; in the acceleration chamber 10, the air swirl and mineral particles are fully mixed , so that the mineral particles move in the direction of the collecting device 14 along the feeding pipe 11 in a spiral form in the swirl field;
输料管11上设置有若干补给起旋器12，各补给起旋器12沿输料方向间隔均匀设置；各补给起旋器12的补给进气口24通过输气管4与干燥器3的出气口连接，调整补给起旋器12中的进气调节环27的轴向位置使进气调节环27的第一锥形密封面26与补给起旋器12壳体内壁的第二锥形密封面28接触密封，补给的气流由补给进气口24进入涡旋气流通道25，形成切向气流，与输料管11中的料气混合气流汇合，增强矿物颗粒的螺旋运动，避免由于输料管11中的旋流强度持续衰减而造成矿物颗粒沉积和管路堵塞；A number of supply spinners 12 are arranged on the feed pipe 11, and each supply spinner 12 is evenly spaced along the feeding direction; the supply air inlet 24 of each supply spinner 12 passes through the air delivery pipe 4 and the outlet of the dryer 3. Air port connection, adjust the axial position of the air intake adjustment ring 27 in the supply spinner 12 so that the first tapered sealing surface 26 of the air intake adjustment ring 27 and the second tapered sealing surface of the inner wall of the supply spinner 12 shell 28 contact seal, the supply air flow enters the vortex air flow channel 25 from the supply air inlet 24, forming a tangential air flow, which merges with the mixed air flow of the material gas in the feeding pipe 11, and strengthens the spiral movement of the mineral particles, avoiding the The continuous attenuation of the swirl intensity in 11 causes mineral particle deposition and pipeline blockage;
在输料管11的每段弯管前均设置有补给起旋器12；补给起旋器12的补给进气口24通过输气管4与干燥器3的出气口连接，调整补给起旋器12中的进气调节环27的轴向位置使进气调节环27的第一锥形密封面26与补给起旋器12壳体内壁的第二锥形密封面28接触密封，补给的气流由补给进气口24进入涡旋气流通道25，形成切向气流，对输料管11中的矿物颗粒产生扰动，改变矿物颗粒原有的速度，增强矿物颗粒弥散度，可以有效减缓颗粒与弯管壁面的正面冲击，减少颗粒破碎，使颗粒与管壁接触更均匀，减弱壁面磨损程度，延长管路寿命。Before each bend of the feeding pipe 11, a supply spinner 12 is provided; the supply air inlet 24 of the supply spinner 12 is connected with the air outlet of the dryer 3 through the gas delivery pipe 4, and the supply spinner 12 is adjusted. The axial position of the air intake adjustment ring 27 in the air intake adjustment ring 27 makes the first tapered sealing surface 26 of the air intake adjustment ring 27 contact and seal with the second tapered sealing surface 28 of the inner wall of the supply spinner 12 shell, and the air flow of the supply is supplied by the The air inlet 24 enters the vortex airflow channel 25 to form a tangential airflow, which disturbs the mineral particles in the feeding pipe 11, changes the original velocity of the mineral particles, enhances the dispersion of the mineral particles, and can effectively slow down the flow of particles and the wall of the elbow. The frontal impact reduces the particle breakage, makes the contact between the particles and the pipe wall more uniform, reduces the degree of wall wear and prolongs the life of the pipe.
以上实施例仅用以说明而非限制本实用新型的技术方案，尽管参照上述实施例对本实用新型进行了详细说明，本领域的普通技术人员应当理解：依然可以对本实用新型进行修改或者等同替换，而不脱离本实用新型的精神和范围的任何修改或局部替换，其均应涵盖在本实用新型的权利要求范围当中。The above embodiments are only used to illustrate and not limit the technical solutions of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present utility model can still be modified or equivalently replaced. Any modification or partial replacement without departing from the spirit and scope of the present utility model shall fall within the scope of the claims of the present utility model.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494891A (en) * | 2016-12-07 | 2017-03-15 | 河南理工大学 | A kind of mineral grain eddy flow air-transport system |
| CN108328337A (en) * | 2018-03-19 | 2018-07-27 | 农业部南京农业机械化研究所 | Pressure sending type Pneumatic conveyer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494891A (en) * | 2016-12-07 | 2017-03-15 | 河南理工大学 | A kind of mineral grain eddy flow air-transport system |
| CN108328337A (en) * | 2018-03-19 | 2018-07-27 | 农业部南京农业机械化研究所 | Pressure sending type Pneumatic conveyer |
| CN108328337B (en) * | 2018-03-19 | 2024-03-12 | 农业部南京农业机械化研究所 | Pressure-feeding type pneumatic conveying device |
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