阅读说明：本技术 一种带有在线取样装置的多个并联旋流器机组及在线取样方法 (Multiple parallel cyclone units with online sampling device and online sampling method ) 是由 王磊 孙吉鹏 郑纪民 邱冠周 李永峰 马鹏飞 卢涛 于 2020-07-14 设计创作，主要内容包括：本发明涉及旋流器应用技术领域,具体地说是一种带有在线取样装置的多个并联旋流器机组及在线取样方法,其设有支架,支架中部设有分料筒,分料筒的下端设为进料口,分料筒的上设有多个并联的旋流器,旋流器的进料管经分料支管与分料筒侧壁相连通,分料支管上设有分料取样阀门,特征在于分料取样阀门由阀体、密封圈、闸板、支撑杆、气缸、活塞、电磁阀、气源组成,电磁阀设为三位五通电磁阀,气缸外壁由上向下依次设有A位置感应器、B位置感应器、D位置感应器,通过控制器控制电磁阀的充气和放气量实现调节阀门中闸板的开启幅度位置的调整,具有结构简单、取样方便、取样效果好、取样效率高、实现在线取样等优点。(The invention relates to the technical field of cyclone application, in particular to a plurality of parallel cyclone units with online sampling devices and an online sampling method, wherein the parallel cyclone units are provided with a bracket, a material distribution barrel is arranged in the middle of the bracket, the lower end of the material distribution barrel is provided with a feed inlet, a plurality of parallel cyclones are arranged on the material distribution barrel, a feed pipe of each cyclone is communicated with the side wall of the material distribution barrel through a material distribution branch pipe, and a material distribution sampling valve is arranged on each material distribution branch pipe The sampling is convenient, the sampling effect is good, the sampling efficiency is high, and the on-line sampling is realized.)

1. A plurality of parallel cyclone units with online sampling devices are provided with a support, a material separating barrel is arranged in the middle of the support, the lower end of the material separating barrel is provided with a feed inlet, a plurality of parallel cyclones are arranged on the material separating barrel, a feed pipe of each cyclone is communicated with the side wall of the material separating barrel through a material separating branch pipe, a material separating sampling valve is arranged on each material separating branch pipe, an overflow pipe of each cyclone is connected with an overflow box on the support through a conveying pipe, and a bottom flow port of each cyclone is connected with a bottom flow box on the support through the conveying pipe, the parallel cyclone units are characterized in that the material separating sampling valve is composed of a valve body, a sealing ring, a flashboard, a supporting rod, a cylinder, a piston, an electromagnetic valve and an air source, the electromagnetic valve is a three-position five-way electromagnetic valve, two ends of the, be equipped with the sealing washer on the regulation hole of flashboard both sides, the sealed sliding connection of face of sealing washer and flashboard, the lower extreme of flashboard stretch into in the regulation hole, the upper end of flashboard stretches out the output shaft that the regulation hole is connected with the cylinder, the cylinder body of cylinder through bracing piece and valve body fixed connection, the cylinder in be equipped with the piston, the piston below is connected with the output shaft of cylinder, the output shaft stretches out the cylinder and is connected with the flashboard, the cylinder body of cylinder about both sides be equipped with last venthole and lower business turn over gas pocket respectively, last venthole and lower business turn over gas pocket be linked together through connecting two interfaces of trachea and three-position five-way solenoid valve respectively, the pressure port of solenoid valve be connected with the air supply, the solenoid valve on both sides of pressure port be equipped with the gas outlet respectively, through three-position five-way solenoid valve control cylinder in admit air and give vent to, The device comprises a B position sensor, a D position sensor, wherein the A position sensor corresponds to a valve full-open state, the D position sensor corresponds to a valve full-close state, the opening amplitude of a flashboard in the valve corresponding to the B position sensor is smaller than 1/2 of the valve full-open state, the opening amplitude of the flashboard for adjusting the position of the B position sensor just meets the non-overflow state of the swirler, the A position sensor, the B position sensor, the D position sensor and the three-position five-way electromagnetic valve are respectively connected with a controller through signal lines, the adjustment of the opening amplitude position of the flashboard is realized by controlling the inflation and deflation amount of the three-position five-way electromagnetic valve through the controller, and finally the regulation of the slurry feeding amount distributed to each swirler is realized.

2. The multiple parallel cyclone units with the online sampling device of claim 1, wherein a C position sensor is arranged between the B position sensor and the D position sensor on the outer wall of the cylinder, the C position sensor is connected with the controller through a signal line, the B position sensor corresponds to the opening amplitude of the gate plate from 1/3 to 1/2, and the C position sensor corresponds to the opening amplitude of the gate plate from 1/6 to 1/3.

3. The multiple parallel cyclone units with the online sampling device according to claim 1, wherein the B-position sensor, the C-position sensor, or both the B-position sensor and the C-position sensor are arranged to move up and down the adjustable position sensor along the outer wall of the cylinder, and the position of the adjustable position sensor on the cylinder is adjusted by the adjustable position sensor, so as to adjust the position of the outer wall of the cylinder where the position sensor is located when the cyclone is in a non-overflow state.

4. The multiple parallel cyclone units with the online sampling device according to claim 1, 2 or 3, wherein the position sensor A, the position sensor B, the position sensor C and the position sensor D respectively adopt a magnetic conductivity Hall proximity switch, position sensing is realized through the magnetic conductivity Hall proximity switch, the cylinder is made of alloy material with non-magnetic conductivity, the piston is made of material with strong magnetism, and the piston moves to the corresponding position sensor.

5. The multiple parallel cyclone units with the online sampling device of claim 1, wherein the controller is a PLC programmable logic controller, and a touch operation display screen is disposed on a housing of the controller.

6. The multiple cyclone units in parallel with on-line sampling device of claim 1, wherein the solenoid valve is disposed on the valve body, the cylinder or the controller.

7. An online sampling method of a plurality of parallel cyclone units with online sampling devices is characterized by comprising the following steps: when a plurality of parallel cyclone units are in a production working state, the feed inlets of the material distribution cylinders are used for feeding, and slurry in the material distribution cylinders runs to the upper part of the material distribution cylinders, the slurry enters the parallel cyclones in the working state through the material distribution branch pipes, the material distribution sampling valves on the material distribution branch pipes are in a fully opened state at the moment, the cyclones in the working state all have overflow products and underflow products at the moment, when the feeding samples of a single cyclone are required to be sampled, the slurry flow entering the cyclone is greatly reduced by adjusting the opening amplitude of the middle flashboards of the material distribution sampling valves until the cyclone is adjusted to be in the running state with only underflow discharge and no overflow product discharge, after a period of running, the underflow outlet discharge of the cyclone is the feeding samples of the cyclone, and the feeding samples of the cyclone are obtained at the underflow outlet of the cyclone.

8. The on-line sampling method of multiple parallel cyclone units with on-line sampling device of claim 7, wherein the method for adjusting the opening range of the shutter in the valve comprises operating the controller to give an instruction for moving the piston to the position of the B position sensor or the position of the C position sensor, the sampling controller automatically determines the current position of the piston and gives an instruction for inflating the three-position five-way solenoid valve, pushing the piston to move towards the position of the B position sensor or the position of the C position sensor, when the piston moves to the position of the B position sensor or the position of the C position sensor, the position of the B position sensor or the position of the C position sensor instantly sends a signal to the controller, the three-position five-way solenoid valve instantly executes an instruction for stopping the air inflation of the cylinder, thereby stopping the piston at the position of the B position sensor or the position of the C position sensor, at the moment, the opening amplitude of the gate plate is about 1/3-1/2 or 1/6-1/3, the feeding flow of the corresponding cyclone is greatly reduced until the sampling state that only the underflow does not overflow and the flow is maximum is met, and after the sampling is finished, the sampling controller is operated to enable the valve to run to the A position sensor in the fully open state or the D position sensor in the fully closed state.

9. The method of claim 7, wherein the operating time is not less than 15 seconds.

Technical Field

The invention relates to the technical field of cyclone application, in particular to a plurality of parallel cyclone units with online sampling devices and an online sampling method, wherein the parallel cyclone units have the advantages of simple structure, convenient sampling, good sampling effect, high sampling efficiency and online sampling.

Background

As is well known, cyclones are widely used in mining, metallurgy, environmental protection, petroleum, chemical and food industries. The cyclone usually uses water as a medium, and depends on an external pump or a gravity field to transmit power, and a rotary flow field can accelerate the settling velocity of solid-phase particles in a water medium and increase the difference of the settling velocity of coarse and fine particles in the water medium, so that the rapid separation and classification of particles with different sizes are realized.

In order to master the production operation conditions of the cyclone and the upstream and downstream equipment thereof, production operators in industrial production need to frequently sample and analyze the feed slurry of the cyclone, the classified overflow products and the classified underflow products, so as to make reasonable judgment and adjustment and improve the production operation efficiency and benefit. The overflow product and the underflow product of the cyclone are conveniently sampled, the overflow product and the underflow product can be directly and respectively obtained from the overflow discharge pipe and the underflow discharge pipe of the cyclone operation platform, but the accurate sampling of the cyclone feeding sample is still difficult.

Several methods for sampling cyclone feeding materials are commonly used at present, the first method is to take feeding material samples at a feeding pump groove of a cyclone, and the sampled samples are often not representative due to the sedimentation of slurry in the feeding pump groove. The other method is that a cyclone feeding sample is taken from a feeding branch pipe of a feeding pump of the cyclone, and the concentration and the granularity of discharged slurry of the sewage pipe are greatly different from those of a main pipeline due to the pipe diameter difference of the sewage pipe and the main pipeline, so that the sampling sample is not representative. In another sampling method, a small sampling tube is arranged on a distributor of the cyclone, the difference between the actual value and the concentration and the granularity of the sampled slurry is large due to the difference between the installation position and the pipe diameter of the sampling tube and the operating pressure of the cyclone, and a control valve of the sampling tube is easy to block.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a plurality of parallel cyclone units with online sampling devices and an online sampling method, wherein the parallel cyclone units have the advantages of simple structure, convenient sampling, good sampling effect and high sampling efficiency and realize online sampling.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a plurality of parallel cyclone units with online sampling devices are provided with a support, a material separating barrel is arranged in the middle of the support, the lower end of the material separating barrel is provided with a feed inlet, a plurality of parallel cyclones are arranged on the material separating barrel, a feed pipe of each cyclone is communicated with the side wall of the material separating barrel through a material separating branch pipe, a material separating sampling valve is arranged on each material separating branch pipe, an overflow pipe of each cyclone is connected with an overflow box on the support through a conveying pipe, a bottom flow port of each cyclone is connected with a bottom flow box on the support through the conveying pipe, the parallel cyclone units are characterized in that the material separating sampling valve is composed of a valve body, a sealing ring, a flashboard, a supporting rod, a cylinder, a piston, an electromagnetic valve and an air source, the electromagnetic valve is a three-position five-way electromagnetic valve, two ends of the valve body are respectively connected with the material separating, the sealed sliding connection of face of sealing washer and flashboard, the lower extreme of flashboard stretch into in the regulation hole, the upper end of flashboard stretches out the output shaft that the regulation hole is connected with the cylinder, the cylinder body of cylinder through bracing piece and valve body fixed connection, the cylinder in be equipped with the piston, the piston below is connected with the output shaft of cylinder, the output shaft stretches out the cylinder and is connected with the flashboard, the cylinder body of cylinder about both sides be equipped with last venthole respectively and pass in and out the gas pocket down, last venthole and pass in and out the gas pocket down be linked together through connecting two interfaces of trachea and tribit five-way solenoid valve respectively, the pressure port of solenoid valve is connected with the air supply, the solenoid valve on both sides of pressure port be equipped with the gas outlet respectively, through the tribit five-way solenoid valve control cylinder in admit air and go out the oscilaltion that, The position sensor B, the position sensor D, the position sensor A corresponds the valve full-open state, the position sensor D corresponds the valve full-close state, the opening range of the flashboard that the position sensor B corresponds is less than 1/2 of valve full-open state, make the opening range of the position flashboard of position sensor B just in time satisfy the not overflow state of swirler, the position sensor A, the position sensor B, D position sensor and tribit five-way solenoid valve are connected with the controller through the signal line respectively, the inflation and the gassing volume of controlling the tribit five-way solenoid valve through the controller realize the adjustment of the opening range position of flashboard in the regulating valve, finally realize the regulation of the ground paste feed volume of distributing to each swirler.

A C position sensor is arranged between a B position sensor and a D position sensor on the outer wall of an air cylinder, the C position sensor is connected with a controller through a signal line, the B position sensor corresponds to the opening amplitude 1/3-1/2 of a flashboard, and the C position sensor corresponds to the opening amplitude 1/6-1/3 of the flashboard.

The position sensor B or the position sensor C or both the position sensor B and the position sensor C are set as adjustable position sensors which can move up and down along the outer wall of the air cylinder, and the position of the position sensor in the air cylinder is adjusted through the adjustable position sensors, so that the position of the outer wall of the air cylinder where the position sensor is located when the swirler is in a non-overflow state is adjusted.

The position sensor A, the position sensor B, the position sensor C and the position sensor D are respectively provided with a magnetic conduction Hall proximity switch, position sensing is realized through the magnetic conduction Hall proximity switch, the cylinder is made of non-magnetic conduction alloy materials, the piston is made of strong magnetic materials, and the piston moves to the corresponding position sensor.

The controller is a PLC programmable logic controller, and a touch operation display screen is arranged on a shell of the controller.

The electromagnetic valve is arranged on the valve body, the cylinder or the controller.

An online sampling method of a plurality of parallel cyclone units with online sampling devices is characterized by comprising the following steps: when a plurality of parallel cyclone units are in a production working state, the feed inlets of the material distribution cylinders are used for feeding, and slurry in the material distribution cylinders runs to the upper part of the material distribution cylinders, the slurry enters the parallel cyclones in the working state through the material distribution branch pipes, the material distribution sampling valves on the material distribution branch pipes are in a fully opened state at the moment, the cyclones in the working state all have overflow products and underflow products at the moment, when the feeding samples of a single cyclone are required to be sampled, the slurry flow entering the cyclone is greatly reduced by adjusting the opening amplitude of the flashboards in the material distribution sampling valves until the cyclone is adjusted to be in the working state with only underflow discharge and no overflow product discharge, after a period of running, the underflow outlet discharge of the cyclone is the feeding samples of the cyclone, and the feeding samples of the cyclone are obtained at the underflow outlet of the cyclone.

The method for adjusting the opening amplitude of the gate plate in the material-dividing sampling valve comprises the steps of operating a controller, giving an instruction for moving a piston to a position of a position B sensor or a position of a position C sensor, automatically judging the current position of the piston by the sampling controller, giving an instruction for inflating a three-position five-way electromagnetic valve, pushing the piston to move towards the position of the position B sensor or the position C sensor, immediately transmitting a signal to the controller by the position B sensor or the position C sensor when the piston moves to the position B sensor or the position C sensor, immediately executing the instruction for stopping inflating the cylinder by the sampling controller by the three-position five-way electromagnetic valve, stopping the piston at the position of the position B sensor or the position C sensor, wherein the opening amplitude of the gate plate is 1/3-1/2 or 1/6-1/3, and the feeding flow of a corresponding swirler is greatly reduced, and operating the sampling controller to enable the valve to run to the A position sensor in a fully open state or the D position sensor in a fully closed state after sampling is finished until the sampling state that only the underflow does not overflow and the flow rate is maximum is met.

The running time of the invention is not less than 15 seconds.

By adopting the structure and the sampling method, the invention has the advantages of simple structure, convenient sampling, good sampling effect, high sampling efficiency, realization of on-line sampling and the like.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic diagram of the structure of the distributing sampling valve in fig. 1.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

as shown in the attached drawings, a plurality of parallel cyclone units with online sampling devices are provided with a bracket 1, a material separating barrel 2 is arranged in the middle of the bracket 1, the lower end of the material separating barrel 2 is provided with a feed inlet 3, a plurality of parallel cyclones 4 are arranged on the material separating barrel 2, the feed pipes of the cyclones 4 are communicated with the side wall of the material separating barrel 2 through material separating branch pipes 5, material separating and sampling valves 6 are arranged on the material separating branch pipes 5, the overflow pipes of the cyclones 4 are connected with overflow boxes 23 on the bracket 1 through delivery pipes, the underflow ports of the cyclones 4 are connected with underflow boxes 24 on the bracket 1 through delivery pipes, the parallel cyclone unit is characterized in that the material separating and sampling valves 6 are composed of valve bodies 7, sealing rings 8, flashboards 9, support rods 10, air cylinders 11, pistons 12, electromagnetic valves 13 and air sources 14, the electromagnetic valves 13 are three-position and five-way electromagnetic valves 13, the valve body 7 on be equipped with the regulation hole, the regulation hole in be equipped with flashboard 9, be equipped with sealing washer 8 on the regulation hole of flashboard 9 both sides, sealing washer 8 and the sealed sliding connection of face of flashboard 9, the lower extreme of flashboard 9 stretch into the regulation hole, the upper end of flashboard 9 stretches out the regulation hole and is connected with the output shaft 27 of cylinder 11, the cylinder body of cylinder 11 is through bracing piece 10 and valve body 7 fixed connection, cylinder 11 in be equipped with piston 12, piston 12 below is connected with the output shaft 27 of cylinder 11, output shaft 27 stretches out cylinder 11 and is connected with flashboard 9, the cylinder body upper and lower both sides of cylinder 11 be equipped with last gas inlet and outlet 15 respectively and lower gas inlet and outlet 16, last gas inlet and outlet 15 respectively with lower gas inlet and outlet 16 be linked together through connecting trachea 17 and two interfaces of three-position five-way solenoid valve 13, the pressure port of, the two sides of the pressure port on the electromagnetic valve are respectively provided with an air vent 18, air inlet and air outlet in the cylinder 11 are controlled by a three-position five-way electromagnetic valve 13 to realize the up-and-down lifting of the flashboard 9, the outer wall of the cylinder 11 is sequentially provided with an A position sensor 19, a B position sensor 20, a C position sensor 21 and a D position sensor 22 from top to bottom, the A position sensor 19 corresponds to the full-open state of a valve, the D position sensor 22 corresponds to the full-close state of the valve, the B position sensor 20 corresponds to the opening range 1/3-1/2 of the flashboard in the valve, the C position corresponds to the opening range 1/6-1/3 of the flashboard in the valve, the B position sensor 20 or the C position sensor 21 or the B position sensor 20 and the C position sensor 21 are simultaneously set as position sensors which can be adjusted by moving up and down along the outer wall of the cylinder, and are adjusted at the position of, and further realize the position of the outer wall of the cylinder where the position sensor is located when the cyclone is in the non-overflow state, the position sensor 19A, the position sensor 20B, the position sensor 21C, the position sensor 22D and the three-position five-way electromagnetic valve 13 are respectively connected with the controller 25 through the signal wire 26, the controller 25 controls the air inflation and air deflation amount of the three-position five-way electromagnetic valve 13 to realize the adjustment of the opening amplitude position of the flashboard in the adjusting valve, and finally realize the adjustment of the slurry feeding amount distributed to each cyclone 4, the position sensor 19A, the position sensor 20B, the position sensor 21C and the position sensor 22D respectively adopt a magnetic conductivity Hall proximity switch, realize the position sensing through the magnetic conductivity Hall proximity switch, the cylinder 11 is made of non-magnetic conductivity alloy material, the piston 12 is made of strong magnetic material, and moves to the corresponding position sensor through the piston 12, the controller 25 be PLC programmable logic controller 25, be equipped with touch-control operation display screen on the casing of controller 25, solenoid valve 13 establish on valve body 7, cylinder 11 or controller 25, the controller be PLC programmable logic controller, be equipped with touch-control operation display screen on the casing of controller, the solenoid valve establish on valve body, cylinder or controller.

The online sampling method comprises the following steps: when a plurality of parallel cyclones 4 are in a production working state, the material is fed from the feed inlet 3 of the material separating cylinder 2, and the slurry in the material separating cylinder 2 moves to the upper part of the material separating cylinder 2, and enters each cyclone 4 in parallel through the material separating branch pipe 5, the material separating and sampling valve 6 on each material separating branch pipe 5 is in a complete opening state, at this time, each cyclone 4 has overflow products and underflow products, when the feed sample of a single cyclone 4 needs to be sampled, the slurry flow entering the cyclone 4 is greatly reduced by adjusting the opening amplitude of the shutter plate in the material separating and sampling valve 6 until the cyclone 4 is adjusted to have only underflow discharge and no overflow product discharge, after a period of operation, the underflow outlet of the cyclone 4 is the feed sample of the cyclone 4, the feed sample of the cyclone 4 is obtained at the underflow outlet of the cyclone 4, the method for adjusting the opening amplitude of the middle gate plate of the material dividing and sampling valve 6 comprises the steps of operating the controller 25, giving a command for moving the piston 12 to the position of the B position sensor 20 or the position of the C position sensor 21, automatically judging the current position of the piston 12 by the sampling controller 25, giving a command for inflating the three-position five-way electromagnetic valve 13, pushing the piston 12 to move towards the position of the B position sensor 20 or the C position sensor 21, immediately transmitting a signal to the controller 25 by the position of the B position sensor 20 or the C position sensor 21 when the piston 12 moves to the position of the B position sensor 20 or the C position sensor 21, immediately executing the command for stopping inflating the cylinder 11 by the three-position five-way electromagnetic valve 13, thereby finishing the stop of the piston 12 at the position of the B position sensor 20 or the position of the C position sensor 21, and ensuring that the opening amplitude of the gate plate 9 is 1/3-1/2 or 1/6-1/3 at the moment, the feeding flow of the corresponding cyclone 4 is greatly reduced until the sampling state that only the underflow has no overflow and the flow is maximum is met, after the sampling is finished, the sampling controller 25 is operated to enable the valve to run to the A position sensor 19 in the fully open state or the D position sensor 22 in the fully closed state, the opening amplitude of the middle flashboard of the feeding valve is within the maximum value during the sampling, the maximum value of the opening amplitude of the flashboard is that the flow of slurry entering the cyclone 4 just meets the condition that the cyclone 4 has no overflow products, the running time is not less than 15 seconds, and the three-position five-way electromagnetic valve 18 is of a medium pressure type or a medium seal type.

Because the cyclone has different feeding pressures under different working conditions in the operation process, the conditions of high pressure and low pressure exist in the process of selecting the opening amplitude of the flashboard in the valve, a separate B position sensor 20 with adjustable up-down direction position can be arranged, the condition that the cyclone has no overflow and only has underflow and the opening amplitude of the flashboard in the valve is the maximum can be realized by adjusting the position of the B position sensor 20 in the process of selecting the feeding pressure or the feeding pressure, the sampling effect is good and the sampling efficiency is high at the moment, the B position sensor 20 and the C position sensor 21 can exist at the same time and can be adjusted up and down, the C position sensor 21 is adopted to sample when the feeding pressure is high, the C position sensor 21 is adopted to sample when the feeding pressure is low, and the high-pressure and low-pressure sampling positions can be set between the B position sensor 20 and the C position sensor 21 when the cyclone leaves a factory, the on-site operation can be realized only by controlling the opening or closing state of the B position sensor 20 or the C position sensor 21 through the controller according to the condition of feeding pressure, the B position sensor 20 and the C position sensor 21 can realize position adjustment through an up-down adjusting assembly, the up-down adjusting assembly consists of a screw rod, a nut, a bearing and a limiting block which are arranged on the side surface of the cylinder, the upper end and the lower end of the screw rod are respectively connected with the side wall of the cylinder, the screw rod is sleeved with the nut, the lower end of the nut is connected with the limiting block through the bearing, one end of the limiting block is sleeved on the screw rod, the other end of the limiting block is connected with the B position sensor 20 or the C position sensor 21, the B position sensor 20 or the C position sensor 21 is respectively contacted with the outer wall of the cylinder, and further the up-down adjustment of the B position sensor 20 and the C position sensor 21 is realized, the up, the adjustable structure of the B position sensor 20 and the C position sensor 21 can be realized within the protection scope of the invention, meanwhile, the invention adopts the function realized by 4 position sensors, the invention also comprises a plurality of position sensors arranged between the A position sensor and the D position sensor, the plurality of position sensors can realize the adjustment of the opening amplitude of the gate plate under the adjustment of different pressure working conditions, therefore, the plurality of position sensors are not limited to one or two position sensors in the invention, and the invention also comprises the condition of at least two position sensors, the opening amplitude of the gate plate is the ratio of the rising height of the gate plate to the through diameter of the fluid in the valve.