CN209821017U - On-line detecting analyzer for particle shape - Google Patents

Abstract

The utility model discloses a particle physique on-line measuring analysis appearance, include: the automatic sampling processing device is used for sampling and processing the obtained sample; the optical system is used for magnifying and imaging the sample to obtain a magnified real image and transmitting the magnified real image to the camera system; the camera system is used for shooting the amplified real image and generating image data; the upper computer is connected with the camera system and is used for receiving the image data and analyzing and processing the image data to obtain particle body characteristic data; and the control system is respectively connected with the automatic sampling processing device, the optical system, the camera system and the upper computer and can control the working states of the automatic sampling processing device, the optical system and the camera system. The particle body on-line detection analyzer based on the structure can automatically detect and analyze the particle body of the reaction material in the production process, has real-time performance, no distortion, simple operation steps and high safety factor, does not influence the reaction and does not waste the material.

Description

On-line detecting analyzer for particle shape

Technical Field

The utility model relates to a detection and analysis technical field especially relates to a particle physique on-line measuring analysis appearance.

Background

In the industrial production process, the shape and the granularity of a tiny object are very important parameters, the quality of the object shape directly influences the quality of a product, the size of the object can be reflected through the granularity distribution side, but the representation is not intuitive enough. The instruments currently used for the detection of particulate bodies are mainly electron microscopes and Scanning Electron Microscopes (SEM). Most of the instruments are analysis room instruments, and some material laboratory analyses have the defects of material distortion, no real-time property, complex steps, danger and the like. Therefore, there is a need for an apparatus for on-line shape detection and analysis of particles during a reaction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a particle physique on-line measuring analysis appearance, this particle physique on-line measuring analysis appearance can carry out online physique to the particle physique in the industrial production process and detect and the analysis.

To achieve the purpose, the utility model adopts the following technical proposal:

an on-line detection analyzer for particulate forms, comprising:

the automatic sampling processing device is used for sampling and processing the obtained sample;

the optical system is used for magnifying and imaging the sample to obtain a magnified real image and transmitting the magnified real image to the camera system;

the camera system is used for shooting the amplified real image and generating image data;

the upper computer is connected with the camera system and used for receiving the image data and analyzing and processing the image data to obtain particle body characteristic data;

and the control system is respectively connected with the automatic sampling processing device, the optical system, the camera system and the upper computer and can control the working states of the automatic sampling processing device, the optical system and the camera system.

In one embodiment, the automatic sampling and processing device comprises sampling and processing equipment and a detection chamber, wherein the detection chamber comprises a feed inlet for communicating with an outlet of the sampling and processing equipment and a discharge outlet for communicating with the interior of production equipment, and the detection chamber is provided with a viewfinder.

In one embodiment, the sampling processing device is an injection pump, the injection pump comprises an inflow pipe for a first fluid to flow in, an expansion pipe, a mixing pipe and an introduction pipe for a second fluid to flow in, the introduction pipe is arranged on the expansion pipe and communicated with the expansion pipe, and the inflow pipe, the expansion pipe and the mixing pipe are connected in sequence;

the inflow pipe comprises an inflow section and a tapered section which are communicated in sequence, the tapered section is positioned in the expanding pipe, and an outlet of the tapered section and an outlet of the expanding pipe are both communicated with an inlet of the mixing pipe;

the mixing tube is a Venturi tube, and the outlet of the mixing tube is communicated with the feed inlet of the detection chamber.

In one embodiment, the online detection analyzer for the particle shape further comprises an auxiliary device, the auxiliary device comprises a steam pipeline and an evacuation pipeline, and an outlet of the steam pipeline and an outlet of the evacuation pipeline are both communicated with an inlet of the inflow pipe.

In one embodiment, the automatic sampling and processing device comprises two light-transmitting plates and a cavity ring clamped between the two light-transmitting plates, the cavity ring and the two light-transmitting plates jointly enclose to form the detection chamber, and a feed inlet and a discharge outlet of the detection chamber are both arranged on the cavity ring.

In one embodiment, annular grooves are formed in the two light-transmitting plates, annular sealing rings are arranged in the annular grooves, and the cavity ring compresses the annular sealing rings; and/or the presence of a gas in the gas,

the automatic sampling and processing device further comprises two clamping flanges, and the two clamping flanges are matched with the light-transmitting plate to clamp the light-transmitting plate.

In one embodiment, a liquid distributor and a plurality of grid nets are arranged in the detection chamber, the grid nets are positioned in a distribution barrel of the liquid distributor, the grid nets are spaced to form grid channels, and a sample in the grid channels can be observed through the view window.

In one embodiment, the optical system includes a light source, an objective lens for magnifying and imaging the sample to obtain the magnified real image, a focusing assembly for adjusting the focus of the objective lens, and an optical assembly for transferring the magnified real image to the camera system.

In one embodiment, the camera system comprises a camera, and the optical assembly comprises a lens barrel, an imaging barrel, a prism group for steering the magnified real image, and a lens group for transferring the magnified real image steered by the prism group to the camera;

the lens group is located in the lens cone, the prism group, the objective lens and the focusing assembly are located in the cavity of the imaging cylinder, the lens cone is vertically connected with the imaging cylinder, part of the lens cone is located in the cavity of the imaging cylinder, the camera is arranged on the upper portion, far away from the imaging cylinder, of the lens cone, and the camera is connected with the upper computer and the control system.

In one embodiment, the imaging cylinder is provided with an air hole, and the lens barrel is connected with a vacuum valve; and/or cooling components are arranged on the peripheries of the lens barrel and the imaging barrel.

The utility model discloses a particle physique on-line measuring analysis appearance has following beneficial effect at least:

the particle body on-line detection analyzer comprises an automatic sampling processing device, an optical system, a camera system, an upper computer and a control system, wherein the upper computer is connected with the camera system, and the control system is respectively connected with the automatic sampling processing device, the optical system, the camera system and the upper computer; the working states of the automatic sampling processing device, the optical system and the camera system are controlled by the control system, the automatic sampling processing device samples and processes the samples to obtain samples, the optical system magnifies and images the samples to obtain magnified real images and transmits the magnified real images to the camera system, the camera system shoots the magnified real images and generates image data, and the upper computer receives the image data and analyzes and processes the image data to obtain particle body characteristic data. The particle physique on-line measuring analysis appearance based on above-mentioned structure can automize and carry out the on-line measuring analysis of particle physique, forms analysis report and clear picture and supplies control quality engineer to be used for the quality supervision, and on-line measuring analysis particle physique has the real-time, does not take place the distortion, and operating procedure is simple and factor of safety is high, does not influence the reaction simultaneously and goes on, can not extravagant material.

Drawings

FIG. 1 is a schematic block diagram of an on-line particle shape detection analyzer according to one embodiment;

FIG. 2 is a schematic structural diagram of an on-line particle shape detection analyzer according to an embodiment;

FIG. 3 is a top view of the detection chamber in the on-line particulate form detection analyzer of FIG. 2;

FIG. 4 is a right side view of the detection chamber in the on-line particulate form detection analyzer of FIG. 2;

FIG. 5 is a schematic diagram of the sampling processing equipment in the on-line particle shape detection analyzer of FIG. 2;

FIG. 6 is a schematic process diagram;

FIG. 7 is an enlarged view of a portion of FIG. 6 at A;

the reference numbers illustrate:

the production equipment 10, the automatic sampling processing device 100, the sampling processing device 110, the inflow pipe 111, the inflow section 1111, the tapered section 1112, the expansion pipe 112, the mixing pipe 113, the introduction pipe 114, the detection chamber 120, the inlet port 121, the outlet port 122, the viewing window 123, the sampling pipe 124, the discharge pipe 125, the light-transmitting plate 130, the annular sealing ring 131, the cavity ring 140, the distribution cylinder 151, the grid mesh 160, the grid channel 161, the sealing ring 162, the cavity ring positioning rod 170, the clamping flange 180, the optical system 200, the light source 210, the objective lens 220, the focusing assembly 230, the lens barrel 241, the imaging cylinder 242, the prism group 243, the pentagonal prism 2431, the rectangular prism 2432, the lens 244, the air hole 245, the vacuum valve 246, the camera system 300, the camera 310, the upper computer 400, the control system 500, the cooling assembly 600, the steam pipeline 700, the evacuation pipeline 800, the first flange 910, the second flange 920, the connection short pipe 921, the heating device, Pressure detection alarm PIA, flow display FI, temperature display control TIC, flow display control FIC and flow control valve FCV.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The industrial chemical production process has complex working conditions, pressure, temperature and corrosive environmental conditions, the concentration of the materials is higher, and the process conditions change the materials, which leads to the difficulty in directly realizing optical imaging on particles in the reaction process. The utility model provides a particle physique on-line measuring analysis appearance can not only solve the industrial production in-process and judge the on-line measuring analysis of process particle physique, still can satisfy all industry adverse circumstances under (temperature, pressure, corruption etc.) to particle physique on-line measuring's needs.

Referring to fig. 1 to 5, an embodiment of the on-line particle shape measuring analyzer includes: the automatic sampling processing device 100, the optical system 200, the camera system 300, the upper computer 400 and the control system 500. The automatic sampling processing device 100 is used for sampling and processing the obtained sample; the optical system 200 is used for magnifying and imaging the sample to obtain a magnified real image and transmitting the magnified real image to the camera system 300; the camera system 300 is used for shooting an enlarged real image and generating image data; the upper computer 400 is connected with the camera system 300 and is used for receiving image data and analyzing and processing the image data to obtain particle body characteristic data; the control system 500 is connected to the automatic sampling apparatus 100, the optical system 200, the imaging system 300, and the host computer 400, and can control the operating states of the automatic sampling apparatus 100, the optical system 200, and the imaging system 300.

Alternatively, the automated sampling processing apparatus 100 can be installed in a reaction kettle or other production facility (e.g., the upper vapor space within the production facility 10); alternatively, the automatic sampling processing apparatus 100 may be installed outside the reaction vessel or other production equipment 10 (for example, on the upper part of the sampling port of the production equipment 10), as long as sampling from the production equipment 10 is realized.

Specifically, the automatic sampling processing device 100 includes a sampling processing device 110 and a detection chamber 120, the detection chamber 120 includes a feeding port 121 for communicating with an outlet of the sampling processing device 110 and a discharging port 122 for communicating with an interior of the production device 10, the detection chamber 120 is provided with a view window 123, and the optical system 200 can observe the particles in the sample through the view window 123, so as to magnify and image the particles. Specifically, the material in the production apparatus 10 is extracted by the sampling processing apparatus 110, the solvent (e.g., water) conveyed from the outside enters the sampling processing apparatus 110 to dilute the material to obtain the sample, and the sample flows through the detection chamber 120, and the speed of the sample is controlled to ensure that the shot image remains clear on the premise that the image capturing system 300 optically amplifies the sample. The detection chamber 120 can be installed in the upper gas phase space (internal installation) of the production equipment 10 or the upper sampling port (external installation) of the production equipment 10 as required, and can simulate the reaction conditions in the production equipment 10 to keep the detected materials undistorted, and the materials passing through the detection chamber 120 can return to the production equipment 10 without affecting the continuous participation of the materials in the reaction.

Further, an ultrasonic generator is arranged on the detection chamber 120, and the sample in the detection chamber 120 is uniformly dispersed by the ultrasonic generator to prevent the particles from adhering and overlapping, thereby facilitating the amplification imaging and the clear shooting.

When using above-mentioned automatic sampling processing apparatus 100 to carry out the sampling processing, the material is through sampling processing equipment 110 continuous ration sample to detection room 120, the while control and production facility 10 interior the same solvent with the temperature with press and sample flow according to the continuous entering detection room 120 of ratio, the material is diluted at detection room 120, the velocity of flow reduces simultaneously, control detection room 120 internal environment is the same with reaction environment, under the prerequisite that does not change the material characteristic, the material can be by the clear enlarged formation of image of optical system 200, the material that is diluted returns production facility 10 after flowing from detection room 120 and continues to participate in the reaction, can not cause the material extravagant. In one embodiment, the sampling processing device 110 is an injection pump, an externally supplied solvent (e.g., water) enters the injection pump, a sample is obtained by extracting the reaction material in the production device 10 through the injection pump and mixing and diluting the material and the solvent, the sample flows through the detection chamber 120, and the concentration and speed of the sample are controlled to ensure that the captured image is kept clear and the material particles are separated clearly on the premise that the image capturing system 300 performs optical amplification. In other embodiments, the sampling processing device 110 may have other structures as long as the functions of sampling and processing samples are realized.

Specifically, referring to fig. 5, the jet pump includes an inflow pipe 111 through which the first fluid flows, an expansion pipe 112, a mixing pipe 113, and an introduction pipe 114 through which the second fluid flows, the introduction pipe 114 being disposed on the expansion pipe 112 and communicating with the expansion pipe 112, the inflow pipe 111, the expansion pipe 112, and the mixing pipe 113 being connected in sequence; the inflow pipe 111 comprises an inflow section 1111 and a tapered section 1112 which are communicated in sequence, the tapered section 1112 is positioned in the enlarged pipe 112, and an outlet of the tapered section 1112 and an outlet of the enlarged pipe 112 are communicated with an inlet of the mixing pipe 113; the mixing tube 113 is a venturi tube, and an outlet of the mixing tube 113 communicates with the inlet port 121 of the detection chamber 120. Specifically, the jet pump selects suitable material and polishing, and its structural design does not have the dead angle to guarantee that the commodity circulation is unobstructed, and easily wash and sweep. The nozzle of the jet pump is replaced by a movable thread cutting sleeve, and the tapered section 1112 and the mixing pipe 113 are preferably made of hard alloy to resist the erosion of the material.

Specifically, the mixing tube 113 includes a mixing section 1131 and an injection section 1132, and the outlet of the mixing tube 113 is located at the injection section 1132. Referring to fig. 5, when the jet pump is operated, the solvent (the temperature of the solvent is the same as the reaction temperature in the production equipment 10) which is the same as the reaction is used, and the solvent passes through the inlet of the jet pump at a proper flow rate, because the solvent is constricted in the tapered section 1112 of the inflow pipe 111, the flow rate is increased in the solvent jet orifice (i.e. the outlet of the tapered section 1112), and a reduced pressure is formed in the expanding pipe 112, so that the reaction material in the production equipment 10 is extracted from the introducing pipe 114 to the expanding pipe 112, and mixed with the solvent and then enters the mixing pipe 113, because the mixing pipe 113 has a venturi structure, an effective material seal is formed, and the mixed reaction material flows out from the outlet of the mixing pipe 113 and enters the detection.

Further, the online particle shape detection analyzer may further include an auxiliary device, the auxiliary device includes a steam line 700 and an evacuation line 800, an outlet of the steam line 700 and an outlet of the evacuation line 800 are both communicated with an inlet of the inflow pipe 111, and the arrangement of the steam line 700 and the evacuation line 800 keeps the process line and the online particle shape detection analyzer clean.

Referring to fig. 3 and 4, in one embodiment, the automatic sampling and processing apparatus 100 includes two transparent plates 130 and a cavity ring 140 clamped between the two transparent plates 130, the cavity ring 140 and the two transparent plates 130 together enclose the detection chamber 120, and the inlet 121 and the outlet 122 of the detection chamber 120 are disposed on the cavity ring 140. The cavity ring 140 may be a metal cavity ring made of metal or other cavity rings made of non-metal materials. The light-transmissive plate 130 may allow light to pass therethrough for magnified imaging of the sample to be examined by the optical system 200. In this embodiment, quartz glass is used as the transparent plate 130, and in other embodiments, a flat plate made of other suitable transparent materials may be used as the transparent plate 130.

Further, annular grooves are formed in the two light-transmitting plates 130, annular sealing rings 131 are arranged in the annular grooves, and the cavity ring 140 compresses the annular sealing rings 131; and/or, the automatic sampling and processing device 100 further comprises two holding flanges 180, the two holding flanges 180 cooperatively hold the two transparent plates 130, and the detection chamber 120 can be mounted on the production equipment 10 or the optical system 200 through the two holding flanges 180. A liquid distributor and a plurality of grid meshes 160 are disposed in the detection chamber 120, the plurality of grid meshes 160 are positioned in the distribution cylinder 151 of the liquid distributor, and the plurality of grid meshes 160 are spaced apart to form grid channels 161, and a sample located in the grid channels 161 can be observed from the viewing window 123.

Referring to fig. 2-4, a clamping flange 180 made of a suitable material is selected to clamp the upper and lower transparent plates 130, a cavity ring 140 is disposed between the two transparent plates 130, and the cavity ring 140 compresses the annular sealing ring 131 in the annular groove of the transparent plate 130 to form a closed detection chamber 120. A grating net 160 is arranged in the detection chamber 120 in the center, the grating net 160 is positioned by a cavity ring 140, the lower part of the grating net 160 is tightly attached to the lower light-transmitting plate 130, and the upper part of the grating net 160 is provided with a sealing ring 162 which is tightly attached and pressed with an annular sealing ring 131 of the upper light-transmitting plate 130. The solvent is mixed with the material in the jet pump, the solvent dilutes the material to obtain a sample, the sample sequentially passes through the feed inlet 121 on the cavity ring 140, the distribution cylinder 151 of the liquid distributor and the grid holes of the grid net 160 to enter the grid channel 161, the flow rate of the sample flowing through the view window 123 on the grid channel 161 is reduced, the optical system 200 observes the sample through the view window 123 and magnifies and images the material particles in the sample positioned in the view window 123 to obtain a magnified real image, the optical system 200 transmits the magnified real image to the camera system 300, the camera system 300 photographs the magnified real image and converts the magnified real image into an image data file through a photoelectric conversion module, and the material flow passes through the detection chamber 120 and then converges to the discharge port 122 of the detection chamber 120 and returns to the production equipment 10 (for example, a reaction kettle) for participating in reaction.

Referring to fig. 2, the optical system 200 includes a light source 210, an objective lens 220 for magnifying and imaging a sample to obtain a magnified real image, a focusing assembly 230 for adjusting the focusing of the objective lens 220, and an optical assembly for transmitting the magnified real image to the image capturing system 300, wherein the focusing assembly 230 is connected to an upper computer 400 and a control system 500.

Specifically, the camera system 300 includes a camera 310, and the optical components include a lens barrel 241, an imaging barrel 242, a prism group 243 for steering the magnified real image, and a lens group for transferring the magnified real image steered by the prism group 243 to the camera 310; the lens group is located in the lens barrel 241, the prism group 243, the objective lens 220 and the focusing assembly 230 are located in the cavity of the imaging cylinder 242, and the lens barrel 241 is vertically connected with the imaging cylinder 242 and is partially located in the cavity of the imaging cylinder 242; the camera 310 is disposed at an upper portion of the lens barrel 241 far from the imaging cylinder 242, and the camera 310 is connected to the upper computer 400 and the control system 500. The camera 310 may be a high-speed camera, such as a CMOS high-speed camera or a CCD high-speed camera, among others.

Referring to fig. 2, in the present embodiment, the prism assembly 243 includes a pentagonal prism 2431 and a rectangular prism 2432, and the lens assembly includes two lenses 244 arranged at intervals. Specifically, the automatic sampling processing device 100 may be mounted on the imaging cylinder 242 through the first flange 910, the objective lens 220 faces the view finding window 123 of the detection chamber 120, and the focusing assembly 230 is controlled by the upper computer 400 and the control system 500 to realize automatic focusing of the objective lens 220. The optical system 200 uses reflected light and transmitted light, can design polarization as required, and can be completed by the light source 210 and the optical components at different installation positions. The optical system 200 may be connected to the production apparatus 10 by using a second flange 920, the optical system 200 may be disposed inside the production apparatus 10 (for example, an upper gas phase space inside the production apparatus 10) or outside the production apparatus 10 (for example, an upper portion of a sampling port of the production apparatus 10), and a connection short pipe 921 for connecting a process pipeline is provided on the second flange 920, and the connection short pipe 921 and other process pipelines are connected by a loose thread.

Further, the imaging cylinder 242 is provided with an air hole 245, and the lens barrel 241 is connected with a vacuum valve 246 to avoid the influence of humidity on the optical system 200; and/or, the peripheries of the lens barrel 241 and the imaging cylinder 242 are both provided with cooling assemblies 600 to avoid the influence of high temperature on the optical system 200. Specifically, the cooling assembly 600 may be a cooling tube, the cooling tube is wound around the peripheries of the lens barrel 241 and the imaging barrel 242, and a cooling medium is introduced into the cooling tube; alternatively, the cooling assembly 600 may be a cooling jacket, which is sleeved on the peripheries of the lens barrel 241 and the imaging barrel 242, and a cooling medium is introduced into the cooling jacket.

Referring to fig. 2, in the embodiment shown in fig. 2, the optical system 200 is of an inverted structure, the camera 310 is mounted on the top of the lens barrel 241, and the photoelectric conversion module of the camera 310 may be a CCD or a CMOS. The material is in the detection chamber 120, the objective lens 220 magnifies and images the material particles in the sample slowly flowing through the view window 123 to obtain a magnified real image, the magnified real image is turned by the prism group 243, then transmitted to the camera 310 through the lens group in the lens barrel 241, and then photographed by the camera 310 to form an image number which is transmitted to the upper computer 400. In order to avoid the influence of temperature and humidity on the optical system 200, the whole optical system 200 is vacuumized through the air hole 245 and the vacuum valve 246, and a cooling pipe is wound around the periphery of the optical system 200, and a cooling medium is introduced into the cooling pipe to avoid the influence of high ambient temperature on the optical system 200.

The upper computer 400 sorts and analyzes image data formed by the automatic picture shooting of the camera system 300 to form data of relevant body characteristics of particles in the production process. The upper computer 400 may be connected to a DCS (distributed control system), and the upper computer 400 performs real-time analysis on image data formed by automatic shooting by the camera system 300 and transmits an analysis result to the DCS and a management network in real time, for input conditions of industrial control (for example, for input of process control indexes) or to relevant departments and quality control engineers for quality supervision; and the upper computer 400 can receive the control instruction of DCS and management personnel to the particle body on-line detection analyzer, and is convenient for diagnosing and maintaining the system. Specifically, referring to fig. 1, the upper computer 400 includes a data analysis processing module 410 and a data transmission and management module 420 that are connected to each other, wherein the data transmission and management module 420 is connected to the control system 500 and the camera system 300 for transmitting and managing data; the data analysis processing module 410 is connected to the camera system 300 and is used for analyzing and processing data.

In this embodiment, the control system 500 includes a PLC (programmable logic controller), a control valve and a display instrument, and can implement functions of automatic sampling, automatic process parameter control, automatic cleaning, automatic purging, automatic focusing, and the like for automatic online detection. Specifically, the PLC and the upper computer 400 are installed in a control box, the control box is designed to be sealed and dustproof, a human-computer interface of the PLC and the upper computer 400 is realized by using a touch screen, the PLC and the upper computer are connected with a field instrument through a multi-core cable from a terminal box terminal, a 220VAC power supply terminal box is adopted, the PLC and a management network can be connected through an industrial ethernet, and the control box needs to be opened and inserted into a network interface of the upper computer 400. When the control box is provided with an explosion-proof design, the particle body online detection analyzer can be used in places requiring explosion-proof requirements.

With reference to fig. 1, the operation principle of the particle shape online detection analyzer is as follows: the automatic sampling processing device 100 completes real-time automatic sampling and processing of materials in the production process to obtain samples, the samples are amplified and imaged through the optical system 200 and transmitted to the camera system 300, the images are shot by the camera system 300 and are parallel to form image data, the image data are sent to the upper computer 400, the upper computer 400 analyzes and processes the image data to form particle shape characteristic data, and the particle shape characteristic data are applied to DCS and managers. The method specifically comprises the following steps: the solvent which is the same as the reaction process is controlled to have proper flow and temperature and pressure which are similar to the temperature and pressure of the on-line material and pass through the jet pump, the reaction material to be detected enters the jet pump under the extraction of the jet pump, the sample is obtained by diluting the mixture of the jet pump and the solvent, the sample enters the detection chamber 120, the sample is uniformly distributed by the detection chamber 120, the sample flows through the optical observation window (namely the viewfinder 123) at a slow speed, and finally the sample is collected and returned to the production equipment 10; the optical system 200 adopts a special structure to avoid adverse effects of the reaction environment, the optical system 200 magnifies and images the sample distributed on the viewing window 123 and transmits the magnified image to the outside of the reaction environment through the optical assembly, so that the camera system 300 automatically shoots a clear picture; the camera system 300 converts the image into image data and then automatically sends the image data to the upper computer 400, and the upper computer 400 automatically analyzes and processes the image data to form particle shape characteristic data in the relevant reaction. The particle shape characteristic data can be automatically sent or automatically read for DCS and manager.

Referring to fig. 2 to 7, the specific operation of the particle shape on-line detection analyzer according to an embodiment will be described in detail with reference to a process pipeline (wherein the process pipeline is designed to be connected in a segmented manner, and a threaded ferrule connection manner is adopted, so that the process pipeline and the apparatus can be conveniently maintained and replaced, and the materials and thicknesses of all components need to be designed according to different use environments):

as shown in fig. 6 and 7, while the optical system 200 is protected by the cooling member 600, the solvent which is the same as the reaction is preheated, the preheated solvent enters a heating device 930, the PLC controls the heating device 930 to heat the solvent to the same temperature as the reaction, a flow display control loop FIC-02 controls the solvent to enter the inflow pipe 111 of the jet pump at a proper flow rate, the solvent is jetted at the tapered section 1112 of the inflow pipe 111, thereby generating a reduced pressure in the enlarged pipe 112 such that the pressure in the enlarged pipe 112 is lower than the pressure in the production apparatus 10, the material in the production apparatus 10 is extracted into the ejector pump through the sampling pipe 124 connected to the introduction pipe 114 and mixed with the solvent in the mixing section of the mixing pipe 113, wherein the sampling pipe 124 is connected with the leading-in pipe 114 by a movable clamping sleeve, the sampling flow rate of the material is controlled by a flow rate display control loop FIC-03, and the ratio of the flow rate display control loop FIC-02 to the flow rate display control loop FIC-03 is controlled;

in the detection chamber 120, the sample enters the distribution cylinder 151 of the liquid distributor, the distribution cylinder 151 is divided into a plurality of grid channels 161 by the grid mesh 160, the sample can only enter the channels from the grid holes of the grid mesh 160, the sample flows through the viewing window 123 arranged in the center at a slower flow speed, and the sample finally gathers and flows out through the discharge hole 122 of the detection chamber 120;

the sample flowing out of the detection chamber 120 returns to the production equipment 10 through a discharge pipe 125 connected to a liquid outlet, an electromagnetic cut-off valve KV-05 is designed on the discharge pipe 125, and when the cut-off valve KV-05 is closed, the sample can be kept still in the detection chamber 120; when the reaction is finished and the process pipeline and the detection chamber 120 need to be cleaned and purged, the cut-off valve KV-05 is closed, a certain amount of solvent is introduced to clean the sampling tube 124, the flow regulating valve FCV-03 is closed, and the cut-off valve KV-05 is opened to introduce a certain amount of solvent to clean the detection chamber 120 and the drain pipe; after flushing, opening a cut-off valve KV-01 to introduce steam to purge and empty the sampling pipe 124, the liquid discharge pipe and the detection chamber 120 respectively, wherein the cut-off valve KV-03 is a cut-off valve on an emptying pipeline; when the equipment is overhauled, the production equipment 10 is ensured to be emptied and replaced, the particle shape online detection analyzer is flushed and purged, the steam and the solvent are cut off, and an emptying valve is opened;

the optical system 200 is an independent structure and is hermetically connected with the detection chamber 120 by a first flange 910, the upper part of the imaging cylinder 242 is located at the center of the first flange 910 and is welded with the first flange 910, the inside of the optical system 200 is vacuumized and provided with an external cooling assembly 600 as required, the objective lens 220 is placed at the lower part of the detection chamber 120 and is opposite to the viewfinder 123, and the upper computer 400 can control the control system 500 to adjust the focal length of the focusing assembly 230 so as to meet the requirement of accurate focusing of the objective lens 220. The objective lens 220 magnifies and images the material in the sample to form a magnified real image, and the prism group 243 and the lens group transmit the magnified real image to the camera 310 of the camera system 300 through the lens barrel 241 for shooting by the camera 310;

the camera 310 of the camera system 300 takes pictures and converts the pictures into image data, the upper computer 400 analyzes the image data in real time and transmits the analysis result to the DCS and the management network in real time, and the upper computer 400 can receive the control instruction of the DCS and the management personnel to the particle body online detection analyzer and is convenient for diagnosis and maintenance of the system.

The particle shape online detection analyzer at least has the following advantages:

(1) the method integrates multiple specialties such as process, equipment, automatic control, optics and the like, realizes automatic sampling, undistorted state sample dispersion, online imaging, online cleaning, image online analysis, data transmission and the like in the industrial process, can automatically perform online detection and analysis on the particle shape of reaction materials in the production process, and can form an analysis report and a clear picture for a quality control engineer to use for quality supervision;

(2) the online detection and analysis of the particle body has real-time performance, no distortion, no influence on reaction, no waste of materials, simple operation steps and high safety factor;

(3) the structure is simple and modularized, the installation is convenient, the maintenance consumption is low, and only a small amount of public works are provided;

(4) the method has wide adaptability, is suitable for online detection of the generation process of the micro particles in the industrial production process, is particularly suitable for reaction occasions under severe environments such as temperature, pressure, corrosivity and consistency, and is very suitable for popularization in the industrial and laboratory fields such as crystallization process, reaction process, dissolution process and drying process.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An on-line particle shape detection analyzer, comprising:

an automatic sampling processing device (100) for sampling and processing the obtained sample;

an optical system (200) for magnifying the sample for imaging to obtain a magnified real image and transferring the magnified real image to a camera system (300);

a camera system (300) for capturing the enlarged real image and generating image data;

the upper computer (400) is connected with the camera system (300) and is used for receiving the image data and analyzing and processing the image data to obtain particle shape characteristic data;

and the control system (500) is respectively connected with the automatic sampling processing device (100), the optical system (200), the camera system (300) and the upper computer (400), and can control the working states of the automatic sampling processing device (100), the optical system (200) and the camera system (300).

2. The on-line particle shape detecting and analyzing instrument as claimed in claim 1, wherein the automatic sampling and processing device (100) comprises a sampling and processing device (110) and a detection chamber (120), the detection chamber (120) comprises a feed inlet (121) for connecting the outlet of the sampling and processing device (110) and a discharge outlet (122) for communicating the interior of the production device (10), and the detection chamber (120) is provided with a viewfinder (123).

3. The on-line detection analyzer for particulate forms according to claim 2, wherein the sampling processing device (110) is an ejector pump comprising an inflow pipe (111) for inflow of a first fluid, an expansion pipe (112), a mixing pipe (113), and an introduction pipe (114) for inflow of a second fluid, the introduction pipe (114) being disposed on the expansion pipe (112) and communicating with the expansion pipe (112), the inflow pipe (111), the expansion pipe (112), and the mixing pipe (113) being connected in sequence;

the inflow pipe (111) comprises an inflow section (1111) and a tapered section (1112) which are communicated in sequence, the tapered section (1112) is positioned in the enlarged pipe (112), and an outlet of the tapered section (1112) and an outlet of the enlarged pipe (112) are communicated with an inlet of the mixing pipe (113);

the mixing tube (113) is a Venturi tube, and an outlet of the mixing tube (113) is communicated with a feeding hole (121) of the detection chamber (120).

4. The on-line particulate body detection analyzer of claim 3, further comprising an auxiliary device comprising a steam line (700) and an evacuation line (800), wherein an outlet of the steam line (700) and an outlet of the evacuation line (800) are both in communication with an inlet of the inflow pipe (111).

5. The on-line detecting analyzer for particle-shaped bodies according to claim 2, wherein the automatic sampling and processing device (100) comprises two transparent plates (130) and a cavity ring (140) clamped between the two transparent plates (130), the cavity ring (140) and the two transparent plates (130) jointly enclose to form the detecting chamber (120), and the inlet (121) and the outlet (122) of the detecting chamber (120) are both disposed on the cavity ring (140).

6. The on-line particle analyzer of claim 5, wherein two of said transparent plates (130) have annular grooves, and an annular sealing ring (131) is disposed in each of said annular grooves, and said cavity ring (140) compresses said annular sealing ring (131); and/or the presence of a gas in the gas,

the automatic sampling and processing device (100) further comprises two clamping flanges (180), and the two clamping flanges (180) are matched with each other to clamp the two light-transmitting plates (130).

7. The on-line particulate form detection analyzer of any of claims 2-6, wherein a liquid distributor and a plurality of grid meshes (160) are disposed in said detection chamber (120), a plurality of said grid meshes (160) are positioned in a distribution cylinder (151) of said liquid distributor, and a plurality of said grid meshes (160) are spaced apart to form grid channels (161), a sample located in said grid channels (161) being viewable from said viewing window (123).

8. The on-line particle shape detection analyzer of claim 1, wherein the optical system (200) comprises a light source (210), an objective lens (220) for magnifying and imaging the sample to obtain the magnified real image, a focusing assembly (230) for adjusting the focusing of the objective lens (220), and an optical assembly for transferring the magnified real image to the camera system (300).

9. The on-line particulate form inspection analyzer of claim 8, wherein the camera system (300) comprises a camera (310), and the optical assembly comprises a lens barrel (241), an imaging barrel (242), a prism group (243) for steering the magnified real image, and a lens group for transferring the magnified real image steered by the prism group (243) to the camera (310);

the lens group is located in the lens barrel (241), the prism group (243), the objective lens (220) and the focusing assembly (230) are located in a cavity of the imaging cylinder (242), the lens barrel (241) is vertically connected with the imaging cylinder (242) and partially located in the cavity of the imaging cylinder (242), the camera (310) is arranged on the upper portion, far away from the imaging cylinder (242), of the lens barrel (241), and the camera (310) is connected with the upper computer (400) and the control system (500).

10. The on-line detection analyzer of particle-shaped bodies according to claim 9, characterized in that said imaging cylinder (242) is opened with an air hole (245), and said lens barrel (241) is connected with a vacuum valve (246); and/or a cooling component (600) is arranged on the periphery of the lens barrel (241) and the periphery of the imaging cylinder (242).