CN113295838A - Rotary-cut drainage type concentration detection assembly of concentration tank based on interference rectification and detection device with rotary-cut drainage type concentration detection assembly - Google Patents
Rotary-cut drainage type concentration detection assembly of concentration tank based on interference rectification and detection device with rotary-cut drainage type concentration detection assembly Download PDFInfo
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Abstract
The invention discloses a rotary-cut drainage type concentration tank concentration detection assembly based on interference rectification and a detection device with the same, wherein the concentration detection assembly comprises a plurality of detection grooves and measuring elements correspondingly arranged on the detection grooves, an gradually-expanding groove with a trapezoidal section is arranged below the detection grooves, and a feeding port is arranged at the lower end of the gradually-expanding groove; a groove inner cavity communicated with the gradually-expanded groove is arranged above the detection groove, and a pressure-reducing pipe which is communicated with the gradually-expanded groove and is vertically arranged is arranged in the groove inner cavity or on the circumferential surface of the outer wall of the groove; a beam grid for rectification is arranged below the groove inner cavity, and the beam grid consists of a plurality of vertical flow channels surrounded by grid bars; the detection grooves are enclosed into a circle, an overflow groove is arranged at the upper edge of an outer ring enclosed by the detection grooves, and an overflow hole is arranged at the lowest position of the bottom of the overflow groove. The invention can ensure the stable pressure of the water flow entering the detection tank, is beneficial to the effective defoaming and turbulence elimination of the water flow by the beam grid, and ensures the stability and accuracy of the measured data.
Description
Technical Field
The invention relates to the technical field of concentration measurement, in particular to a rotary-cut drainage type concentration detection assembly based on interference rectification and a detection device with the rotary-cut drainage type concentration detection assembly.
Background
The treatment of the slime water is one of the important links of the coal preparation plant, the quality of the treatment effect of the slime water has great relation with the efficiency, quality index and the like of the coal preparation plant, and even influences the economic benefit and social benefit of the coal preparation plant. The distribution condition of the concentration of the slime water in the outdoor rake concentrator is an important parameter in the slime water treatment process, and the distribution condition of the concentration is an important basis for adding medicaments. If too little medicament is added, not only can the particles in the coal slime water not be completely settled, but also the coal slime content of the overflow water of the thickener used as circulating water is too high, and the normal production of a coal preparation plant is seriously influenced when the overflow water is used as the overflow water; otherwise, the medicament is wasted, and the normal production of the coal preparation plant is also influenced, so that the understanding of the concentration distribution condition in the pool has great significance for the coal preparation plant.
In the commonly used concentration detection method at present, when the concentration of the coal slime is detected by manual sampling, the problems of time waste and manpower are existed, the hysteresis is obvious, and the guidance significance is lost, so that in recent years, with the development of science and technology, more and more real-time, effective and reliable online detection methods are available, and currently, the commonly used concentration measurement method comprises the following steps: ultrasonic attenuation, digital image, isotope measurement, dual tube differential pressure, and the like. However, these methods are affected by the measuring environment, such as measuring temperature, bubbles in the liquid, motion disturbance, illumination, noise, etc., resulting in inaccurate measurement; some methods are influenced by the installation environment, such as an image recognition method, a double-tube differential pressure method and the like, and the installation environment is greatly influenced due to the self measurement principle and the product structure; some methods have high cost, such as isotope measurement methods and the like, need special safety protection and operation training, and have the defects of high cost, high maintenance, high cost of matched secondary instruments and the like.
Therefore, based on the defects of the above measurement methods and the requirements of practical application processes, in combination with the knowledge related to fluid dynamics and structural mechanics, a new concentration detection assembly and a detection device having the same are proposed to provide a non-interference detection platform for differential pressure measurement, turbidity measurement and ultrasonic or isotope measurement, so as to improve the detection accuracy and stability of the above detection methods, which is an important research direction for those skilled in the art.
Disclosure of Invention
In view of this, the invention provides a rotary-cut drainage type concentration tank concentration detection assembly based on interference rectification and a detection device with the same, and the specific technical scheme is as follows:
a rotary-cut drainage type concentration detection assembly based on interference rectification is arranged above a concentration tank and connected behind a sampling assembly; the concentration detection assembly comprises a plurality of detection grooves and measuring elements correspondingly arranged on the detection grooves, the number of the detection grooves can be determined according to the number of sampling points, wherein gradually-expanding grooves with trapezoidal sections are arranged below the detection grooves, the lower ends of the gradually-expanding grooves are provided with feeding ports, and the feeding ports are communicated with the drainage ports of the sampling assembly through flow guide pipes; a groove inner cavity communicated with the gradually-expanded groove is arranged above the detection groove, and a pressure-reducing pipe which is communicated with the gradually-expanded groove and is vertically arranged is arranged in the groove inner cavity or on the circumferential surface of the outer wall of the groove; a beam grid for rectification is arranged below the groove inner cavity, and the beam grid consists of a plurality of vertical flow channels surrounded by grid bars; the detection grooves are enclosed into a circle, an overflow groove is arranged at the upper edge of an outer ring enclosed by the detection grooves, and an overflow hole is arranged at the lowest position of the bottom of the overflow groove.
According to the invention, the beam grid is arranged in the detection groove, and the pressure-relieving pipe is arranged in the inner cavity or the outer wall surface of the measurement groove, so that the pressure of water flow entering the detection groove is ensured to be stable, the beam grid is favorable for effectively removing bubbles and turbulence of the water flow, and the stability and the accuracy of measurement data of a measurement element are ensured.
Preferably, the cross section of the vertical flow channel is rectangular or circular.
Preferably, the measuring element correspondingly arranged on the detection groove is a pressure sensor or a turbidimeter;
when the measuring element is a pressure sensor, the plurality of detecting grooves are encircled into a ring shape with a hollow middle, the middle area is a sensor mounting area, and the pressure sensor is arranged in the sensor mounting area and is mounted on the groove wall of each detecting groove;
when measuring element is the turbidity timing, evenly cut apart a cross section for the inside cell body in annular detection storehouse, form a plurality of detection grooves, the circulation test bar is stretched to detecting the groove direction along the center that detects the storehouse radius direction by detecting the storehouse to set up in the top of detecting the groove, the turbidimeter is fixed on circulation test bar lower surface, make simultaneously to detect the groove and arrange in between the transmitting terminal and the receiving terminal of turbidimeter, and then make the turbidimeter can the transmission detect inslot material and carry out turbidity and detect.
Preferably, the pressure sensors on the wall of each detection groove are two diffusion silicon sensors which are arranged up and down, the distance between the two pressure sensors can be adjusted according to the measured concentration, the distance between the two pressure sensors at the low concentration place is large, and the distance between the two pressure sensors at the high concentration place is small, so that the measurement sensitivity is ensured.
Preferably, a plurality of circulating detection rods are arranged and are symmetrically distributed along the center of the detection bin; the number of the circulating detection rods and the number of the corresponding turbidimeters are the same as that of sampling points on the same horizontal layer of the concentration pool, so that the measurement timeliness is guaranteed, and the turbidimeters can complete the measurement on the same horizontal layer in as short a time as possible.
Preferably, when the measuring element is a turbidimeter, the material used for the corresponding detection groove is a high light-transmitting material.
Preferably, when the pressure-relief pipes are arranged in the inner cavity of the groove, the number of the pressure-relief pipes is one; when the groove is arranged on the circumferential surface of the outer wall of the groove, the number of the grooves is multiple and the grooves are uniformly distributed.
A rotary-cut drainage type concentration detection device for a concentration tank based on interference rectification is integrally arranged on a fixing frame, the fixing frame is erected on the upper side of the concentration tank, and the length of the fixing frame is the radius length of the concentration tank;
the device comprises a sampling assembly, the concentration detection assembly and an upper computer display system;
the sampling assembly comprises a stirring motor, a transmission mechanism, a sampling device, a lifting motor and a lifting mechanism; the stirring motor is longitudinally fixed on the fixing frame and is close to the center of the concentration tank; the transmission mechanism comprises a driving shaft and a plurality of sampling rotating shafts which are longitudinally arranged, and an output shaft of the stirring motor is downwards connected with the driving shaft; the plurality of sampling rotating shafts are uniformly arranged along the radius direction of the concentration tank, and each sampling rotating shaft is rotatably connected with the fixed frame through at least one bearing; the driving shaft drives the sampling rotating shaft to rotate through the driving part; the sampling rotating shaft is formed by nesting and connecting a plurality of sections of casings of which the diameters are gradually reduced downwards, and adjacent casings can slide relatively in the vertical direction; a positioning block is fixed on the periphery of the lower end of each section of sleeve; the cross section of the periphery of the positioning block is in a sawtooth ring shape and is in meshed nested connection with the sampling device, and the sampling rotating shaft rotates to drive the sampling device to rotate so as to realize sampling; the number of the sampling devices is consistent with that of the sleeves, and the sampling devices are provided with hanging plates which are provided with hanging plate through holes; the lifting motor is transversely fixed on the fixing frame and is close to the outer edge of the concentration tank; the lifting mechanism comprises a twisted rope and a reel, and an output shaft of the lifting motor is transversely connected with the reel; one end of the hinge rope is wound on the reel, and the other end of the hinge rope penetrates through the hanging plate through hole on each hanging plate and then is connected with the hanging plate of the sampling device at the lowest part; the sampling device at the lowest part is fixedly connected with the positioning block at the lowest side of the sampling rotating shaft; the sampling device is a rotary sampling device or a rotary cutting sampling device;
the concentration detection assembly is arranged above the fixing frame and is connected behind the sampling assembly so as to detect the sample collected by the sampling assembly;
the upper computer display system is electrically connected with the measuring element in the detection assembly, converts and fits the multipoint signals acquired by the measuring element, and realizes real-time monitoring on concentration through real-time analog display of the upper computer.
Preferably, the rotary sampling device comprises a sampling mechanism positioned at the lower part and a collecting mechanism positioned at the upper part, and the sampling rotating shaft integrally penetrates through the centers of the sampling mechanism and the collecting mechanism; the sampling mechanism comprises a positioning cylinder, a first connecting bearing and a plurality of sampling pipes, a plurality of through holes are formed in the cylinder body of the positioning cylinder along the axial direction of the positioning cylinder, and the through holes comprise a central through hole positioned in the central position of the positioning cylinder and a plurality of side through holes uniformly distributed along the periphery of the central through hole; the sampling pipe is arranged into an arc-shaped bent pipe and is divided into an outflow section, a transition section and a collection section, the outflow section is embedded and fixed in the side through hole corresponding to the outflow section, the collection section is exposed outside the positioning cylinder, the transition section is connected between the outflow section and the collection section, the collection sections are uniformly distributed along the circumferential direction of the positioning cylinder, and the collection sections are simultaneously bent towards the clockwise direction or the anticlockwise direction; the center of the lower end of the positioning cylinder is provided with a first positioning groove communicated with the central through hole, the inner side wall of the first positioning groove is provided with a sawtooth groove corresponding to the periphery of the positioning block, the first positioning groove is in meshed nested connection with the positioning block, and the first positioning groove and the positioning block can realize relative sliding; the collecting mechanism comprises a collecting groove and a second connecting bearing, the lower end of the collecting groove is connected with the outer side wall of the upper end of the positioning cylinder through the first connecting bearing, and an opening at the upper end of the outflow section is communicated with an inner cavity of the sampling groove; a drainage tube is arranged on the groove wall of the collecting groove, a first connecting bearing groove is arranged at the lower end of the groove body of the collecting groove, a second connecting bearing groove is arranged at the upper end of the groove body of the collecting groove, the first connecting bearing is arranged in the first connecting bearing groove, and the second connecting bearing is arranged in the second connecting bearing groove; the sampling rotating shaft penetrates through the center of the collecting tank and is connected with the upper end of the collecting tank through a second connecting bearing; a hanging plate is arranged between the collecting groove and the second connecting bearing groove, and a hanging plate through hole is formed in the hanging plate; the first positioning groove on the rotary sampling device at the lowest part is fixedly connected with the positioning block at the lowest side of the sampling rotating shaft.
Preferably, the rotary cutting sampling device comprises a sampling mechanism positioned at the lower part, a collecting mechanism positioned at the upper part and a positioning sleeve which penetrates and is nested in the centers of the sampling mechanism and the collecting mechanism, wherein a sawtooth groove corresponding to the periphery of the positioning block is formed in the inner side wall of the positioning sleeve, the positioning sleeve is in meshed and nested connection with the positioning block, and the positioning sleeve and the positioning block can slide relatively; the sampling mechanism comprises a sampling groove and a first connecting bearing, the sampling groove also comprises a second positioning groove positioned at the lower end of the groove body, a rotary-cut pipe positioned on the side wall of the groove body and a first connecting bearing groove positioned at the upper end of the groove body; the positioning sleeve penetrates through the sampling groove and is fixed in the second positioning groove in an embedded mode, the rotary cutting pipes are provided with two rotary cutting pipes which are symmetrically arranged along the circle center of the sampling groove, and the opening directions of the two rotary cutting pipes are opposite; the first connecting bearing is arranged in the first connecting bearing groove; the collecting mechanism comprises a collecting groove and a second connecting bearing, the lower end of the collecting groove is connected with the upper end of the sampling groove through the first connecting bearing, and the collecting groove is communicated with the inner cavity of the sampling groove up and down; a drainage tube is arranged on the wall of the collecting tank, a second connecting bearing groove is arranged at the upper end of the tank body of the collecting tank, and a second connecting bearing is arranged in the second connecting bearing groove; the positioning sleeve penetrates through the collecting tank and is connected with the upper end of the collecting tank through a second connecting bearing; a hanging plate is arranged between the collecting groove and the second connecting bearing groove, and a hanging plate through hole is formed in the hanging plate; and a positioning sleeve on the rotary cutting sampling device at the lowest part is fixedly connected with a positioning block at the lowest side of the sampling rotating shaft.
Stirring motor and drive mechanism can drive the sampling mechanism rotation among the sampling device, collects the mechanism simultaneously and does not change, lets the coal slime water pass through the sampling pipe or the sampling of rotary-cut pipe, and further collected by the collecting vat again. Meanwhile, the first positioning groove or the positioning sleeve in the sampling device is nested with the positioning block on the sampling rotating shaft, so that the positioning and the limiting of the rotary sampling device can be realized.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by arranging the sampling assembly and the concentration detection assembly, liquid positions in the concentration tanks in different radial directions and transverse directions are sampled and measured in real time, and measurement and monitoring of a supernatant layer of the whole concentration tank are realized through signal conversion and fitting.
2. The sampling device provided by the invention is nested with the positioning block on the sampling rotating shaft through the first positioning groove or the positioning sleeve, so that positioning and limiting are realized, real-time synchronous sampling is realized under the drive of the stirring motor, and the accuracy of a fitting model is effectively ensured when concentration fitting is carried out.
3. According to the invention, the lifting plate and the connecting hinge rope are arranged on the collecting mechanism of the sampling device, and the sampling rotating shaft is arranged in a multi-section sleeve nesting mode, so that the sampling device and the sampling rotating shaft are lifted in time by the driving of the lifting motor, and the collision with a climbing frame of a thickener is avoided.
4. According to the invention, the beam grid is arranged in the detection groove, and the pressure-relieving pipe is arranged in the inner cavity or the outer wall surface of the measurement groove, so that the pressure of water flow entering the detection groove is ensured to be stable, the beam grid is favorable for effectively removing bubbles and turbulence of the water flow, and the stability and the accuracy of measurement data of a measurement element are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a detection tank in embodiment 1.
Fig. 2 is a side view of the detection unit in example 1.
Fig. 3 is a top view of the detection assembly of example 1.
Fig. 4 is a schematic structural view of a detection groove in embodiment 2.
Fig. 5 is a top view of the detection assembly of example 2.
Fig. 6 is a schematic structural view of a beam grid.
Fig. 7 and 8 are schematic structural diagrams of two sampling devices.
Fig. 9 is a schematic structural diagram of the sampling rotating shaft in fig. 7.
Fig. 10 is a schematic view of the mounting of the rotary sampling device of fig. 7.
Fig. 11 is an enlarged schematic view of a portion a in fig. 10.
Fig. 12 is a schematic structural view of the rotary sampling device located at the lowest position of the sampling rotation axis in fig. 7.
FIG. 13 is a schematic view of the installation of the sampling tube of FIG. 7.
Fig. 14 is a schematic structural view of the positioning cylinder in fig. 7.
Fig. 15 is a schematic structural diagram of the sampling rotating shaft in fig. 8.
Fig. 16 is a schematic diagram of the internal structure of the rotary cutting sampling device in fig. 8.
Fig. 17 is a top view of the rotary cutting sampling device of fig. 8.
Fig. 18 is a schematic view of the connection between the positioning sleeve and the positioning block in fig. 8.
In the figure:
1-a detection groove, 2-a gradually expanding groove, 3-a material inlet, 4-a slow-pressing pipe, 5-a beam grid, 6-a grid strip, 7-a vertical flow channel, 8-an overflow groove, 9-an overflow hole, 10-a pressure sensor, 11-a sensor installation area, 12-a detection bin, 13-a circulating detection rod, 14-a transmitting end, 15-a receiving end, 16-a fixing frame, 17-a concentration tank, 18-a stirring motor, 19-a rotary sampling device, 20-a rotary cutting sampling device, 21-a lifting motor, 22-a driving shaft, 23-a sampling rotating shaft, 24-a sleeve, 25-a positioning block, 26-a hanging plate, 27-a hanging plate through hole, 28-a hinge rope, 29-a scroll, 30-a sampling mechanism and 31-a collecting mechanism, 32-positioning cylinder, 33-first connecting bearing, 34-sampling pipe, 35-central through hole, 36-side through hole, 37-outflow section, 38-transition section, 39-collection section, 40-first positioning groove, 41-collection groove, 42-second connecting bearing, 43-drainage pipe, 44-first connecting bearing groove, 45-second connecting bearing groove, 46-positioning sleeve, 47-sampling groove, 48-second positioning groove, 49-rotary cutting pipe, 50-gear, 51-chain, 52-suspension bearing, 53-positioning bearing, 54-supporting bearing, 55-bearing seat and 56-suspension ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1-3 and fig. 6, the rotary-cut drainage concentration detection assembly based on interference rectification of the present invention is disposed above the concentration tank 17 and connected behind the sampling assembly; the concentration detection assembly comprises a plurality of detection grooves 1 and pressure sensors 10 correspondingly arranged on the detection grooves 1, wherein an gradually expanding groove 2 with a trapezoidal section is arranged below the detection grooves 1, a feeding port 3 is arranged at the lower end of the gradually expanding groove 2, and the feeding port 3 is communicated with a drainage port outside a drainage tube 43 on the sampling assembly through a drainage tube; a groove inner cavity communicated with the gradually-expanded groove 2 is arranged above the detection groove 1, and a plurality of pressure-reducing pipes 4 which are communicated with the gradually-expanded groove 2 and are vertically arranged are uniformly arranged on the circumferential surface of the outer wall of the groove; a beam grid 5 for rectification is arranged below the inner cavity of the tank, as shown in fig. 6, the beam grid 5 is composed of a plurality of vertical flow channels 7 surrounded by grid bars 6, and the cross section of each vertical flow channel 7 is rectangular or circular.
In this embodiment, a plurality of detection grooves 1 enclose into a circle, and the upper edge of an outer ring enclosed by the detection grooves 1 is provided with an overflow groove 8, and the lowest position of the bottom of the overflow groove 8 is provided with an overflow hole 9.
Further, in this embodiment, the plurality of detection grooves 1 are surrounded into a ring shape with a hollow center, the middle area is a sensor mounting area 11, and the pressure sensor 10 is disposed in the sensor mounting area 11 and mounted on the wall of each detection groove 1.
Furthermore, the pressure sensors 10 on the wall of each detection tank 1 are two diffused silicon sensors arranged up and down, the distance between the two pressure sensors 10 can be adjusted according to the measured concentration, the distance between the two pressure sensors 10 at the low concentration is large, and the distance between the two pressure sensors 10 at the high concentration is small.
In this embodiment, the cross section of the detection tank 1 is rectangular, circular or other shapes suitable for installing the pressure sensor 10, the pressure-reducing pipe 4 and the overflow tank 8.
Example 2:
as shown in fig. 4-6, the rotary-cut drainage concentration detection assembly based on interference rectification of the present invention is disposed above the concentration tank 17 and connected to the rear of the sampling assembly; the concentration detection assembly comprises a plurality of detection grooves 1 made of high-light-transmission materials and turbidimeters correspondingly arranged on the detection grooves 1, wherein an gradually-expanding groove 2 with a trapezoidal section is arranged below the detection grooves 1, a feeding port 3 is arranged at the lower end of the gradually-expanding groove 2, and the feeding port 3 is communicated with a drainage port outside a drainage tube 43 on the sampling assembly through a drainage tube; a groove inner cavity communicated with the gradually-expanded groove 2 is arranged above the detection groove 1, and a pressure-reducing pipe 4 which is communicated with the gradually-expanded groove 2 and is vertically arranged is arranged in the groove inner cavity; a beam grid 5 for rectification is arranged below the inner cavity of the tank, as shown in fig. 6, the beam grid 5 is composed of a plurality of vertical flow channels 7 surrounded by grid bars 6, and the cross section of each vertical flow channel 7 is rectangular or circular.
In this embodiment, a plurality of detection grooves 1 enclose into a circle, and the upper edge of an outer ring enclosed by the detection grooves 1 is provided with an overflow groove 8, and the lowest position of the bottom of the overflow groove 8 is provided with an overflow hole 9.
Further, the specific structure of the concentration detection assembly in this embodiment is: evenly cut apart an inside cell body that the cross section is annular detects storehouse 12, forms a plurality of detection groove 1, and circulation detection pole 13 is followed the radius direction that detects storehouse 12 and is stretched to detection groove 1 direction by the center that detects storehouse 12 to set up in the top that detects groove 1, the turbidimeter is fixed on circulation detection pole 13 lower surface, makes detection groove 1 arrange in between turbidimeter's transmitting terminal 14 and receiving terminal 15 simultaneously.
Furthermore, a plurality of circulating detection rods 13 are arranged and symmetrically distributed along the center of the detection bin 12; the number of the circulation detection rods 13 and the corresponding turbidimeters is the same as the number of sampling points in the same horizontal layer of the concentration tank 17, namely the number of sampling rotating shafts in the below-described sampling assembly.
The invention further discloses a rotary-cut drainage type concentration detection device for the concentration tank based on interference rectification, the device is integrally arranged on a fixing frame 16, the fixing frame 16 is erected on the upper side of the concentration tank 17, and the length of the fixing frame is the radius length of the concentration tank 17.
In particular, the method comprises the following steps of,
the device comprises a sampling assembly, a concentration detection assembly and an upper computer display system in the embodiments 1 and 2;
as shown in fig. 7 and 8, the sampling assembly comprises a stirring motor 18, a transmission mechanism, a sampling device, a lifting motor 21 and a lifting mechanism; the stirring motor 18 is longitudinally fixed on the fixed frame 16 and is close to the center of the concentration tank 17; the transmission mechanism comprises a driving shaft 22 and a plurality of sampling rotating shafts 23 which are longitudinally arranged, and an output shaft of the stirring motor 18 is downwards connected with the driving shaft 22; the plurality of sampling rotating shafts 23 are uniformly arranged along the radius direction of the concentration tank 17, and each sampling rotating shaft 23 is rotatably connected with the fixed frame 16 through at least one bearing; the driving shaft 22 drives the sampling rotating shaft 23 to rotate through a driving part; the sampling rotating shaft 23 is formed by nesting and connecting a plurality of sections of casing pipes 24 with diameters gradually reduced downwards, and adjacent casing pipes 24 can slide relatively in the vertical direction; a positioning block 25 is fixed on the periphery of the lower end of each section of the sleeve 24; the cross section of the periphery of the positioning block 25 is in a sawtooth ring shape and is in meshed nested connection with the sampling device, and the sampling rotating shaft 23 rotates to drive the sampling device to rotate so as to realize sampling; the number of the sampling devices is the same as that of the sleeves 24, the sampling devices are provided with hanging plates 26, and the hanging plates 26 are provided with hanging plate through holes 27; the lifting motor 21 is transversely fixed on the fixed frame 16 and is close to the outer edge of the concentration tank 17; the lifting mechanism comprises a rope 28 and a reel 29, and an output shaft of the lifting motor 21 is transversely connected with the reel 29; one end of a hinge rope 28 is wound on the reel 29, and the other end of the hinge rope passes through the hanging plate through hole 27 on each hanging plate 26 and then is connected with the hanging plate 26 of the lowest sampling device; the sampling device at the lowest part is fixedly connected with the positioning block 25 at the lowest side of the sampling rotating shaft 23; the sampling device is a rotary sampling device 19 or a rotary cutting sampling device 20.
The concentration detection assembly is arranged above the fixing frame 16 and is connected behind the sampling assembly so as to detect the sample collected by the sampling assembly.
The upper computer display system is electrically connected with the measuring element in the detection assembly, converts and fits the multipoint signals acquired by the measuring element, and realizes real-time monitoring on concentration through real-time analog display of the upper computer.
The driving component in the sampling assembly comprises gears 50 and chains 51, each sampling rotating shaft 23 is provided with one gear 50, the driving shaft 22 is uniformly distributed with a plurality of gears 50 in the vertical direction, and the gears 50 are parallel and corresponding to the gears 50 on the sampling rotating shafts 23; two gears 50 in the same horizontal direction on the drive shaft 22 and the sampling rotation shaft 23 are connected by a chain 51.
In the sampling assembly, the upper end of the sampling rotating shaft 23 is rotatably connected with the upper fixing frame 16 through a suspension bearing 52, and the suspension bearing 52 adopts a thrust bearing; a positioning bearing 53 which is concentric with the suspension bearing 52 and is also fixed on the fixed frame 16 is arranged right below the suspension bearing 52, and the sampling rotating shaft 23 is rotatably connected with the lower fixed frame 16 through the positioning bearing 53.
In the above-described sampling assembly, the transmission mechanism further includes a support bearing 54, and the lower portion of the driving shaft 22 is connected to the support bearing 54 fixed to the fixing frame 16.
In the sampling assembly, the cross section of the sleeve 24 is in a sawtooth ring shape, the adjacent sleeves 24 slide in the vertical direction through nesting and meshing, and the positioning block 25 is meshed and fixed with the corresponding sleeve 24.
In the above sampling assembly, the lifting mechanism further includes a bearing seat 55, and one end of the reel 29 far away from the lifting motor 21 is connected with the bearing seat 55 fixed on the fixing frame 16 through a coupler.
In the above, the hanging plate 26 of the sampling device located at the lowest position of the sampling rotating shaft 23 is provided with the hanging ring 56, and the other end of the hinge rope 28 passes through the hanging plate through hole 27 of each hanging plate 26 and then is connected with the hanging ring 56 on the hanging plate 26 of the lowest sampling device.
The specific structure of the sampling assembly to which the rotational sampling device 19 or rotational atherectomy sampling device 20 is attached will be described further below:
the sampling assembly shown in fig. 7, 9-14, wherein the rotary sampling device 19 comprises a lower sampling mechanism 30 and an upper collection mechanism 31, and the sampling rotation shaft 23 integrally penetrates the centers of the sampling mechanism 30 and the collection mechanism 31; the sampling mechanism 30 comprises a positioning cylinder 32, a first connecting bearing 33 and a plurality of sampling pipes 34, wherein a plurality of through holes are formed in the cylinder body of the positioning cylinder 32 along the axial direction of the positioning cylinder, and each through hole comprises a central through hole 35 positioned in the center of the positioning cylinder 32 and a plurality of side through holes 36 uniformly distributed along the periphery of the central through hole 35; the sampling pipe 34 is an arc-shaped bent pipe and is divided into an outflow section 37, a transition section 38 and a collection section 39, the outflow section 37 is embedded and fixed in the side through hole 36 corresponding to the outflow section 37, the collection section 39 is exposed outside the positioning cylinder 32, the transition section 38 is connected between the outflow section 37 and the collection section 39, the collection sections 39 are uniformly distributed along the circumference of the positioning cylinder 32, and the collection sections 39 are simultaneously bent towards the clockwise direction or the anticlockwise direction; a first positioning groove 40 communicated with the central through hole 35 is formed in the center of the lower end of the positioning cylinder 32, a sawtooth groove corresponding to the periphery of the positioning block 25 is formed in the inner side wall of the first positioning groove 40, the area of the first positioning groove 40 is larger than that of the sawtooth annular section of the positioning block 25, the first positioning groove 40 is in meshed nested connection with the positioning block 25, and relative sliding can be achieved between the first positioning groove 40 and the positioning block 25; the collecting mechanism 31 comprises a collecting tank 41 and a second connecting bearing 42, the lower end of the collecting tank 41 is connected with the outer wall of the upper end of the positioning cylinder 32 through a first connecting bearing 33, and the upper end opening of the outflow section 37 is communicated with the inner cavity of the sampling groove 47; a drainage tube 43 is arranged on the groove wall of the collecting groove 41, a first connecting bearing groove 44 is arranged at the lower end of the groove body of the collecting groove 41, a second connecting bearing groove 45 is arranged at the upper end of the groove body of the collecting groove 41, the first connecting bearing 33 is arranged in the first connecting bearing groove 44, and the second connecting bearing 42 is arranged in the second connecting bearing groove 45; the sampling rotating shaft 23 penetrates through the center of the collecting tank 41 and is connected with the upper end of the collecting tank 41 through a second connecting bearing 42; a hanging plate 26 is arranged between the collecting groove 41 and the second connecting bearing groove 45, and a hanging plate through hole 27 is formed in the hanging plate 26; the first positioning groove 40 on the lowest rotary sampling device 19 is fixedly connected with the lowest positioning block 25 of the sampling rotating shaft 23.
The sampling assembly shown in fig. 8 and 15-18, wherein the rotary-cut sampling device 20 includes a sampling mechanism 30 located at the lower part, a collecting mechanism 31 located at the upper part, and a positioning sleeve 46 passing through and nested in the centers of the sampling mechanism 30 and the collecting mechanism 31, the inner side wall of the positioning sleeve 46 is provided with a sawtooth groove corresponding to the periphery of the positioning block 25, the cross-sectional area of the inner side wall of the positioning sleeve 46 is larger than the area of the sawtooth ring-shaped cross-section of the positioning block 25, the positioning sleeve 46 is engaged and nested with the positioning block 25, and the two can realize relative sliding; the sampling mechanism 30 comprises a sampling groove 47 and a first connecting bearing 33, wherein the sampling groove 47 also comprises a second positioning groove 48 positioned at the lower end of the groove body, a rotary cutting pipe 49 positioned on the side wall of the groove body and a first connecting bearing groove 44 positioned at the upper end of the groove body; the positioning sleeve 46 penetrates through the sampling groove 47 and is fixed in the second positioning groove 48 in an embedded mode, and the second positioning groove 48 is wide in section and narrow in section; the rotary cutting pipes 49 are arranged in two and are symmetrically arranged along the circle center of the sampling groove 47, and the opening directions of the two rotary cutting pipes 49 are opposite; the first connecting bearing 33 is disposed in the first connecting bearing groove 44; the collecting mechanism 31 comprises a collecting groove 41 and a second connecting bearing 42, the lower end of the collecting groove 41 is connected with the upper end of the sampling groove 47 through the first connecting bearing 33, and the collecting groove 41 is communicated with the inner cavity of the sampling groove 47 up and down; a drainage tube 43 is arranged on the wall of the collecting tank 41, a second connecting bearing groove 45 is arranged at the upper end of the tank body of the collecting tank 41, and a second connecting bearing 42 is arranged in the second connecting bearing groove 45; a positioning sleeve 46 penetrates through the collecting tank 41 and is connected with the upper end of the collecting tank 41 through a second connecting bearing 42; a hanging plate 26 is further arranged between the collecting groove 41 and the second connecting bearing groove 45, and a hanging plate through hole 27 is formed in the hanging plate 26; the positioning sleeve 46 on the rotary cutting sampling device 20 at the lowest position is fixedly connected with the positioning block 25 at the lowest side of the sampling rotating shaft 23.
The existing ore pulp real-time pumping device generally adopts the following theory as a basis:
V＝√2gH (1)
wherein: v, rotating speed of the ore pulp pumping equipment; g-gravitational acceleration; height of pumping liquid of H-ore slurry pumping equipment
Therefore, the lowest rotation speed of the liquid pumping device at different positions for pumping the liquid into the detection device of the present invention is calculated according to the formula (1), and the rotation speed of the stirring motor 18 in the sampling assembly can be adjusted accordingly.
The working process of the device of the invention is as follows:
the sampling assembly starts to work, the stirring motor 18 drives the driving shaft 22 to rotate, and then the sampling rotating shafts 23 in all radial directions are driven to rotate through the chains 51; the positioning cylinder 32 or the sampling groove 47 of the sampling mechanism 30 rotates along with the rotation, the slime water flows into the sampling groove 47 along the sampling pipe 34 or is passively sucked into the sampling groove 47 through the rotary cutting pipe 49, the collecting groove 41 does not rotate along with the rotation of the positioning cylinder 32 or the sampling groove 47 in the rotating process, and the slime water is pressed into the collecting groove 41 through the sampling pipe 34 or the sampling groove 47 and then flows out along the drainage pipe 43 to enter a subsequent concentration detection assembly.
In the concentration detection subassembly, coal slime rivers eliminate the turbulent flow through 5 entering detection inslot 1 of beam current grids, unstable inflow simultaneously is through 4 sluggish pressures on the sluggish pressure pipe, can make the turbulent flow further become the stable laminar flow in flow field, the accurate stable measurement of being convenient for. The pressure sensor 10 obtains the concentration of the slime water through conversion by measuring different pressure differences formed by the slime water. Or, the turbidimeter directly transmits the materials in the detection tank 1 for turbidity detection. And then the upper computer display system carries out conversion and fitting by acquiring multipoint signals acquired by the pressure sensor 10 or the turbidimeter, and realizes real-time monitoring on the concentration by real-time analog display of the upper computer.
When the climbing frame is about to pass through the fixing frame 16, the lifting motor 21 is started, the lowermost sampling device is driven to move upwards firstly by driving the hinge rope 28, and because the lowermost sampling device is fixedly connected with the lowermost positioning block 25 of the sampling rotating shaft 23, the lowermost sampling device and the lowermost sleeve 24 of the sampling rotating shaft 23 are lifted together, when the top cover of the upper end of the lowermost sampling device is contacted with the bottom of the previous sampling device, the previous sampling device is separated from the corresponding positioning block 25 on the sleeve 24 of the sampling rotating shaft 23, the previous sampling device slides upwards along the corresponding sleeve 24, and simultaneously the sleeve 24 also slides upwards, and the same way is carried out until all the sampling devices and the sleeve 24 are lifted to the upper end of the concentration pool 17 (or lifted to the radial position needing sampling for real-time sampling).
After the climbing frame rotates, the sampling device and the sampling rotating shaft 23 sink to the concentration tank 17 again under the action of gravity, then the stirring motor 18 drives the sampling device to sample in real time, and then the real-time concentration detection and display are carried out through the real-time measuring device.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A rotary-cut drainage type concentration detection assembly based on interference rectification is arranged above a concentration tank and connected behind a sampling assembly; the concentration detection assembly is characterized by comprising a plurality of detection grooves and measuring elements correspondingly arranged on the detection grooves, wherein an gradually-expanding groove with a trapezoidal section is arranged below the detection grooves, a feeding port is arranged at the lower end of the gradually-expanding groove, and the feeding port is communicated with a drainage port of the sampling assembly through a flow guide pipe; a groove inner cavity communicated with the gradually-expanded groove is arranged above the detection groove, and a pressure-reducing pipe which is communicated with the gradually-expanded groove and is vertically arranged is arranged in the groove inner cavity or on the circumferential surface of the outer wall of the groove; a beam grid for rectification is arranged below the groove inner cavity, and the beam grid consists of a plurality of vertical flow channels surrounded by grid bars; the detection grooves are enclosed into a circle, an overflow groove is arranged at the upper edge of an outer ring enclosed by the detection grooves, and an overflow hole is arranged at the lowest position of the bottom of the overflow groove.
2. The rotary-cut drainage type concentration detection assembly based on interference rectification of claim 1, wherein the cross section of the vertical flow channel is rectangular or circular.
3. The rotary-cut drainage type concentration tank concentration detection assembly based on interference rectification according to claim 1, wherein the measuring element correspondingly arranged on the detection groove is a pressure sensor or a turbidimeter;
when the measuring element is a pressure sensor, the plurality of detecting grooves are encircled into a ring shape with a hollow middle, the middle area is a sensor mounting area, and the pressure sensor is arranged in the sensor mounting area and is mounted on the groove wall of each detecting groove;
when measuring element is the turbidity timing, evenly cut apart a cross section for the inside cell body in annular detection storehouse, form a plurality of detection grooves, the circulation test bar is stretched to the detection groove direction by the center that detects the storehouse along detecting the storehouse radius direction to set up in the top of detecting the groove, the turbidimeter is fixed on circulation test bar lower surface, makes the detection groove arrange in between the transmitting terminal and the receiving terminal of turbidimeter simultaneously.
4. The rotary-cut drainage type concentration tank concentration detection assembly based on interference rectification as claimed in claim 3, wherein the pressure sensors on the wall of each detection groove are two diffused silicon sensors arranged up and down, the distance between the two pressure sensors can be adjusted according to the concentration to be measured, the distance between the two pressure sensors is large at a place with low concentration, and the distance between the two pressure sensors is small at a place with high concentration.
5. The rotary-cut drainage type concentration tank concentration detection assembly based on interference rectification is characterized in that a plurality of circulating detection rods are arranged and are symmetrically distributed along the center of the detection bin; the number of the circulating detection rods and the corresponding turbidimeters is the same as that of sampling points on the same horizontal layer of the concentration pool.
6. The rotary-cut drainage type concentration tank concentration detection assembly based on interference rectification of claim 3, wherein when the measuring element is a turbidity meter, the material used for the corresponding detection groove is a high-light-transmission material.
7. The rotary-cut drainage type concentration tank concentration detection assembly based on interference rectification of claim 1, wherein the number of the pressure relief pipes is one when the pressure relief pipes are arranged in the inner cavity of the groove; when the groove is arranged on the circumferential surface of the outer wall of the groove, the number of the grooves is multiple and the grooves are uniformly distributed.
8. A rotary-cut drainage type concentration detection device based on interference rectification is characterized in that the device is integrally arranged on a fixing frame, the fixing frame is erected on the upper side of a concentration tank, and the length of the fixing frame is the radius length of the concentration tank;
the device comprises a sampling assembly, a concentration detection assembly as claimed in any one of claims 1 to 7 and an upper computer display system;
the sampling assembly comprises a stirring motor, a transmission mechanism, a sampling device, a lifting motor and a lifting mechanism; the stirring motor is longitudinally fixed on the fixing frame and is close to the center of the concentration tank; the transmission mechanism comprises a driving shaft and a plurality of sampling rotating shafts which are longitudinally arranged, and an output shaft of the stirring motor is downwards connected with the driving shaft; the plurality of sampling rotating shafts are uniformly arranged along the radius direction of the concentration tank, and each sampling rotating shaft is rotatably connected with the fixed frame through at least one bearing; the driving shaft drives the sampling rotating shaft to rotate through the driving part; the sampling rotating shaft is formed by nesting and connecting a plurality of sections of casings of which the diameters are gradually reduced downwards, and adjacent casings can slide relatively in the vertical direction; a positioning block is fixed on the periphery of the lower end of each section of sleeve; the cross section of the periphery of the positioning block is in a sawtooth ring shape and is in meshed nested connection with the sampling device, and the sampling rotating shaft rotates to drive the sampling device to rotate so as to realize sampling; the number of the sampling devices is consistent with that of the sleeves, and the sampling devices are provided with hanging plates which are provided with hanging plate through holes; the lifting motor is transversely fixed on the fixing frame and is close to the outer edge of the concentration tank; the lifting mechanism comprises a twisted rope and a reel, and an output shaft of the lifting motor is transversely connected with the reel; one end of the hinge rope is wound on the reel, and the other end of the hinge rope penetrates through the hanging plate through hole on each hanging plate and then is connected with the hanging plate of the sampling device at the lowest part; the sampling device at the lowest part is fixedly connected with the positioning block at the lowest side of the sampling rotating shaft; the sampling device is a rotary sampling device or a rotary cutting sampling device;
the concentration detection assembly is arranged above the fixing frame and is connected behind the sampling assembly so as to detect the sample collected by the sampling assembly;
the upper computer display system is electrically connected with the measuring element in the detection assembly, converts and fits the multipoint signals acquired by the measuring element, and realizes real-time monitoring on concentration through real-time analog display of the upper computer.
9. The rotary-cut drainage type concentration tank concentration detection device based on interference rectification of claim 8, wherein the rotary sampling device comprises a sampling mechanism at the lower part and a collecting mechanism at the upper part, and the sampling rotating shaft integrally penetrates through the centers of the sampling mechanism and the collecting mechanism; the sampling mechanism comprises a positioning cylinder, a first connecting bearing and a plurality of sampling pipes, a plurality of through holes are formed in the cylinder body of the positioning cylinder along the axial direction of the positioning cylinder, and the through holes comprise a central through hole positioned in the central position of the positioning cylinder and a plurality of side through holes uniformly distributed along the periphery of the central through hole; the sampling pipe is arranged into an arc-shaped bent pipe and is divided into an outflow section, a transition section and a collection section, the outflow section is embedded and fixed in the side through hole corresponding to the outflow section, the collection section is exposed outside the positioning cylinder, the transition section is connected between the outflow section and the collection section, the collection sections are uniformly distributed along the circumferential direction of the positioning cylinder, and the collection sections are simultaneously bent towards the clockwise direction or the anticlockwise direction; the center of the lower end of the positioning cylinder is provided with a first positioning groove communicated with the central through hole, the inner side wall of the first positioning groove is provided with a sawtooth groove corresponding to the periphery of the positioning block, the first positioning groove is in meshed nested connection with the positioning block, and the first positioning groove and the positioning block can realize relative sliding; the collecting mechanism comprises a collecting groove and a second connecting bearing, the lower end of the collecting groove is connected with the outer side wall of the upper end of the positioning cylinder through the first connecting bearing, and an opening at the upper end of the outflow section is communicated with an inner cavity of the sampling groove; a drainage tube is arranged on the groove wall of the collecting groove, a first connecting bearing groove is arranged at the lower end of the groove body of the collecting groove, a second connecting bearing groove is arranged at the upper end of the groove body of the collecting groove, the first connecting bearing is arranged in the first connecting bearing groove, and the second connecting bearing is arranged in the second connecting bearing groove; the sampling rotating shaft penetrates through the center of the collecting tank and is connected with the upper end of the collecting tank through a second connecting bearing; a hanging plate is arranged between the collecting groove and the second connecting bearing groove, and a hanging plate through hole is formed in the hanging plate; the first positioning groove on the rotary sampling device at the lowest part is fixedly connected with the positioning block at the lowest side of the sampling rotating shaft.
10. The rotary-cut drainage type concentration tank concentration detection device based on interference rectification as claimed in claim 8, wherein the rotary-cut sampling device comprises a sampling mechanism located at the lower part, a collecting mechanism located at the upper part and a positioning sleeve which is embedded in the centers of the sampling mechanism and the collecting mechanism in a penetrating manner, a sawtooth groove corresponding to the periphery of the positioning block is formed in the inner side wall of the positioning sleeve, the positioning sleeve is in meshed and embedded connection with the positioning block, and relative sliding can be realized between the positioning sleeve and the positioning block; the sampling mechanism comprises a sampling groove and a first connecting bearing, the sampling groove also comprises a second positioning groove positioned at the lower end of the groove body, a rotary-cut pipe positioned on the side wall of the groove body and a first connecting bearing groove positioned at the upper end of the groove body; the positioning sleeve penetrates through the sampling groove and is fixed in the second positioning groove in an embedded mode, the rotary cutting pipes are provided with two rotary cutting pipes which are symmetrically arranged along the circle center of the sampling groove, and the opening directions of the two rotary cutting pipes are opposite; the first connecting bearing is arranged in the first connecting bearing groove; the collecting mechanism comprises a collecting groove and a second connecting bearing, the lower end of the collecting groove is connected with the upper end of the sampling groove through the first connecting bearing, and the collecting groove is communicated with the inner cavity of the sampling groove up and down; a drainage tube is arranged on the wall of the collecting tank, a second connecting bearing groove is arranged at the upper end of the tank body of the collecting tank, and a second connecting bearing is arranged in the second connecting bearing groove; the positioning sleeve penetrates through the collecting tank and is connected with the upper end of the collecting tank through a second connecting bearing; a hanging plate is arranged between the collecting groove and the second connecting bearing groove, and a hanging plate through hole is formed in the hanging plate; and a positioning sleeve on the rotary cutting sampling device at the lowest part is fixedly connected with a positioning block at the lowest side of the sampling rotating shaft.
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