CN115854261A - Pipe coal slurry conveying quality control detection system and method with gradient adjusting function - Google Patents
Pipe coal slurry conveying quality control detection system and method with gradient adjusting function Download PDFInfo
- Publication number
- CN115854261A CN115854261A CN202211635607.8A CN202211635607A CN115854261A CN 115854261 A CN115854261 A CN 115854261A CN 202211635607 A CN202211635607 A CN 202211635607A CN 115854261 A CN115854261 A CN 115854261A
- Authority
- CN
- China
- Prior art keywords
- gradient
- coal slurry
- pipe section
- coal
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Crushing And Grinding (AREA)
Abstract
A pipe-conveyed coal slurry quality control detection system with a gradient adjusting function comprises a coal slurry pretreatment system, a large sample ring pipe detection system and a control system; the large sample ring pipe detection system comprises a first long straight pipe section assembly, a gradient-adjustable pipe section assembly and a second long straight pipe section assembly; the coal slurry pretreatment system is connected with the first long straight pipe section through a delivery inspection pipeline; the control system is connected with various devices or devices of the coal slurry pretreatment system and the large sample ring pipe detection system in a wired or wireless mode; the unqualified pulp return pipe is respectively connected with the pulp return ports on the tops of the buffer tank and the mixing tank; also discloses a corresponding pipe coal slurry quality control detection method; the coal slurry quality control aspect has complete functions and more controllable parameters; providing experimental conditions with different gradients, and facilitating analysis and determination of reasonable pipeline laying gradients; sampling and detecting the characteristics of the coal slurry, and determining the characteristic distribution of the coal slurry in the pipeline; and the automatic control is convenient.
Description
Technical Field
The invention belongs to the field of coal slurry testing and quality control, and particularly relates to a system and a method for controlling and detecting the quality of coal slurry transported by a pipe with a gradient adjusting function.
Background
The existing control system and method for coal slurry conveyed by a pipeline need a perfect coal slurry quality control system and method, and have the problems of incomplete parameter detection and control.
On the other hand, the arrangement terrain conditions of the coal slurry conveying pipeline in the actual environment are often complicated and variable, for example, the pipeline laying can touch the ground with different slopes, and the coal slurry testing and quality control problems in the slope environment are not considered in the coal slurry conveying pipeline testing in the prior art.
Disclosure of Invention
The invention aims to solve the problems that the existing pipeline coal slurry conveying control system and method do not have perfect coal slurry pipeline experiment conditions with complete functions, parameter detection and control are incomplete, and accurate pipeline gradient setting and measurement are difficult to realize.
Aiming at the problems, the technical scheme adopted by the invention is as follows:
a pipe transportation coal slurry quality control detection system with a gradient adjusting function comprises a coal slurry pretreatment system, a bulk sample ring pipe detection system and a control system;
the large sample ring pipe detection system comprises a first long straight pipe section assembly, a gradient-adjustable pipe section assembly and a second long straight pipe section assembly;
the first long straight pipe section assembly comprises a first long straight pipe section, and a first electric valve, a long straight pipe section inlet pressure transmitter, an ultrasonic densimeter and a first straight pipe section transparent observation pipe section are sequentially arranged on the first long straight pipe section from left to right;
the gradient-adjustable pipe section assembly comprises a first hose, a gradient-adjustable pipe section and a second hose which are sequentially communicated; the first hose is communicated with the right end of the first long straight pipe section, and the left end of the second hose is communicated with the second long straight pipe section assembly; the first hose is provided with a gradient-adjustable pipe section inlet pressure transmitter, the gradient-adjustable pipe section is sequentially provided with a gradient-adjustable pipe section pressure transmitter, a gradient-adjustable pipe section transparent observation pipe section and a gradient adjusting device, and the second hose is provided with a gradient-adjustable pipe section outlet pressure transmitter;
the second long straight pipe section assembly comprises a second long straight pipe section, the right end of the second long straight pipe section is communicated with a second hose, and a second straight pipe section transparent observation pipe section, an electromagnetic flowmeter, a pipeline sampling point, a second long straight pipe section outlet pressure transmitter and a second electric valve are sequentially arranged on the second long straight pipe section;
the second long straight pipe section is respectively connected with the pump delivery system and the unqualified slurry return pipe through a tee pipeline;
the coal slurry pretreatment system is connected with the first long straight pipe section through a delivery inspection pipeline;
the control system is connected with various devices or devices of the coal slurry pretreatment system and the large sample ring pipe detection system in a wired or wireless mode;
and the unqualified pulp return pipe is respectively connected with the pulp return openings on the tops of the buffer tank and the mixing tank.
Further, the coal slurry pretreatment system comprises a crusher, the lower part of a discharge port of the crusher is connected with a belt conveyor, a buffer bin is arranged below the belt conveyor, a quantitative coal feeder is arranged below the buffer bin, a feeding port of a mill is arranged below the quantitative coal feeder, an impurity removing sieve is arranged below the discharge port of the mill, a discharge port of the impurity removing sieve is communicated with a buffer tank, a mixing tank is arranged behind the buffer tank, the lower part of the mixing tank is connected with a discharge pump of the mixing tank, the discharge pump of the mixing tank is provided with a variable frequency motor, and the discharge pump of the mixing tank is connected with a first long straight pipe section through a feeding and detecting pipeline of a large sample ring pipe detection system; the mill sets up the filler, and buffer tank, compounding jar set up respectively that the mouth of a river is replenished No. one, no. two and replenish the mouth of a river, and the mouth of a river, the mouth of a river is replenished No. one and No. two all set up measurement digital display device on replenishing the mouth of a river.
Furthermore, the slope adjusting device comprises a bottom cushion pad arranged at the bottom of the slope-adjustable pipe section, a pipe bracket is arranged at the bottom of the cushion pad, the pipe bracket is made of flexible deformable materials, the diameter of the pipe bracket is larger than that of the slope-adjustable pipe section, a movement space of the slope-adjustable pipe section in the pipe bracket when the slope is changed is reserved in the pipe bracket, the bottom of the pipe bracket is connected with a hydraulic lifting rod, the hydraulic lifting rod is arranged on a base, a pulley is arranged on the base, and when the hydraulic lifting rod is lifted or lowered, the pipe bracket and the cushion pad are driven to lift or lower, so that the slope-adjustable pipe section is driven to correspondingly lift or lower, and different pipeline laying slopes are formed; the electric screw rod lifting rod is provided with at least two sections of telescopic arms, a motor is arranged to drive the telescopic arms to stretch, and a nut of the electric screw rod lifting rod is pushed forwards, so that the outer sleeve is also pushed forwards along with the nut, the motor rotates reversely, the nut retracts backwards, and the outer sleeve also retracts along with the nut;
the telescopic arm structure comprises the following modes: 1. each section of the telescopic arm can be extended and retracted section by section according to a certain sequence.
2. The telescopic arms are extended and retracted at the same relative speed.
3. Each arm section can independently carry out the mechanism that stretches out and draws back.
4. When the telescopic arm exceeds three sections, any two telescopic modes listed above can be adopted for telescopic mechanism.
Further, slope adjusting device is including setting up in the blotter of the adjustable pipeline section bottom of slope, the blotter outside sets up the pipe strap, the pipe strap is flexible deformable material, the pipe strap diameter is greater than adjustable pipe diameter, adjustable pipe removal space in the pipe strap when reserving the slope in the pipe strap and changing, electronic lead screw lifter is connected at the pipe strap top, electronic lead screw lifter is installed inside the trompil of crossbeam, trompil space on the crossbeam can supply electric lead screw lifter at downthehole rotatory, when electric lead screw lifter rises or descends, drive the pipe strap, the blotter rises or descends, thereby drive the corresponding rising or the decline of adjustable pipe, form different pipe laying slopes.
Further, a first discharge port is also arranged on a first long straight pipe section between the first straight pipe section transparent observation pipe section and the first hose; a second discharge port is also arranged on a second long straight pipe section between the second straight pipe section transparent observation pipe section and the second hose; and a third discharge hole is formed in the gradient-adjustable pipe section.
As another aspect of the invention, the invention also relates to a method for regulating and detecting the coal slurry transported by the pipe with the gradient regulating function, which is characterized by comprising a gradient regulating method; a water adding amount, a coal adding amount and a coal slurry amount regulating and detecting method; coal slurry concentration, coal slurry density, coal slurry particle grading distribution and coal slurry viscosity regulation and detection methods.
Further, the gradient adjustment method includes: the gradient-adjustable pipe section is lifted by installing a pipeline gradient adjusting device at the bottom, or lifted by the pipeline gradient adjusting device; the pipeline slope adjusting device is used for lifting the slope-adjustable pipeline section, changing the height relative to the ground, simulating the pipeline laying slope under various terrain conditions, and comprehensively considering factors such as coal slurry gradation, coal slurry concentration and different shutdown time periods, thereby realizing simulation research; carrying out hydraulic gradient tests under different pipe diameters, different concentrations and different flow rates and critical flow rate tests under different pipe diameters and concentrations on the slurry with different proportions; thereby realizing simulation tests of different laying gradients;
the adjustable-gradient pipe section is subjected to a simulation experiment according to a preset gradient, the adjustable-gradient pipe section is provided with a pipeline gradient setting tester and a dial, and the dial is provided with an angle value and a gradient value numerical value display; the method for setting different gradients of the pipeline gradient setting tester comprises the following steps: rotating a spiral wheel of the pipeline gradient setting tester to enable a pointer to align with the scale of the set gradient (angle), setting the pipeline gradient, enabling the measuring surface of the tester to be in contact with the pipeline, and adjusting the pipeline until the bubble of the leveling pipe is centered;
further, the method for determining the preset gradient is as follows:
i= a Q1 + b (Q2) 1/2 +c (Q3) 1/3
in the formula: i represents the laying gradient; ρ represents density; q1 represents a slip angle; q2 represents angle of repose; q3 represents an angle of repose; the coefficients a, b and c determine values or ranges according to actually measured data of specific conveyed materials;
namely, the laying gradient i is in direct proportion to the slip angle Q1, in direct proportion to the 1/2 power of the repose angle Q2 and in direct proportion to the 1/3 power of the repose angle Q3;
the measurement method of the slip angle, the repose angle and the repose angle comprises the following steps: placing a certain amount of coal slurry conveyed by a pipeline into a horizontal transparent pipeline and standing for a period of time, and lifting the horizontal pipeline for a period of time to incline the pipeline so as to determine the inclination angle (repose angle) of a slurry sedimentary layer and the inclination angle (slip angle) of the pipeline when the sedimentary layer collapses or slides in the inclined pipeline;
when solid particles of coal and material build up in a dune, the solid particles on the slope no longer slide when the slope reaches an angle to the horizontal, which angle is called the angle of repose of the solid particles.
Further, the method for regulating, controlling and detecting the water adding amount, the coal adding amount and the coal slurry amount comprises the following steps:
a quantitative coal feeder is arranged below the buffer bin, the feeding amount of the mill is strictly controlled, meanwhile, the accumulated feeding amount data of the mill can be obtained, the obtained data is sent to a control system, and the control system carries out feedback control adjustment, wherein if the coal feeding amount is higher, the coal feeding amount of the quantitative coal feeder is reduced, and if the coal feeding amount is lower, the coal feeding amount of the quantitative coal feeder is increased; in addition, a high level material level meter and a low level material level meter are arranged in the buffer bin, and the coal storage amount data in the bin is obtained in real time;
the method for regulating and detecting the water adding amount comprises the following steps: a metering digital display device is arranged at a water feeding port at the feeding end of the mill, a buffer tank and a water replenishing port of a mixing tank are all provided with the metering digital display devices, and the water feeding amount of each point is strictly controlled; sending the acquired data to a control system, and carrying out feedback control adjustment by the control system, wherein if the water adding amount is higher, the water feeding amount of a water adding port at the feeding end of the mill is reduced, and if the water adding amount is lower, the water feeding amount of the water adding port at the feeding end of the mill is increased;
the method for regulating and detecting the coal slurry amount comprises the following steps: set up high level gauge, low level gauge and alarm device in buffer tank, compounding jar, acquire the coal slurry volume data in buffer tank, the compounding jar in real time.
Further, the coal slurry concentration, coal slurry density, coal slurry particle grading distribution and coal slurry viscosity control and detection method comprises the following steps:
arranging a concentration meter on a discharge end pipeline of a buffer coal slurry tank to detect the concentration and the density of the coal slurry on line, and correspondingly adjusting a production system according to the detection result; the acquired data is sent to a control system, and the control system performs feedback control and adjustment; if the coal slurry concentration and the coal slurry density are higher, reducing the coal feeding quantity of a quantitative coal feeder or increasing the water feeding quantity of a water feeding port at the feeding end of the mill, if the coal slurry concentration and the coal slurry density are lower than set values, increasing the coal feeding quantity of the quantitative coal feeder or reducing the water feeding quantity of the water feeding port at the feeding end of the mill, and also being capable of regulating and controlling the coal feeding quantity of the quantitative coal feeder and the water feeding quantity of the water feeding port at the feeding end of the mill in a coordinated manner;
setting manual sampling points at the discharge end of the mill, a buffer tank and a mixing tank, sampling at regular time, sampling once every hour, and measuring the coal slurry concentration by using a digital display electrothermal constant-temperature drying box and an electronic balance;
the method comprises detecting particle size distribution with a particle size analyzer, and regulating the particle size distribution by adjusting the addition amount and ratio of grinding medium in the mill;
the method for regulating and detecting the viscosity of the coal slurry comprises the step of detecting the viscosity of the coal slurry by using a viscometer.
The invention has the advantages and characteristics that:
(1) The invention provides a pipe coal slurry quality control and detection system with a gradient adjusting function,
different coal slurry flowing states are tested by arranging a number long straight pipe section assembly and an adjustable gradient pipe section; the flow speed of the coal slurry can be adjusted; measuring the flow and the flow velocity of the coal slurry; measuring the online concentration and density of the coal slurry; measuring the friction loss and the hydraulic gradient of the coal slurry; observing the flowing state of the coal slurry and determining the critical flow rate of the coal slurry; the coal slurry quality control aspect has complete functions and more controllable parameters;
(2) The pipe coal slurry quality control detection system with the gradient adjusting function provided by the invention provides experimental conditions with different gradients, and is convenient for analyzing and determining a reasonable pipeline laying gradient; sampling and detecting the characteristics of the coal slurry, and determining the characteristic distribution of the coal slurry in the pipeline.
(3) According to the pipe coal slurry quality control detection system with the gradient adjusting function, cables are laid along the pipeline, and all devices and instruments are connected with the cables, the distribution control cabinet, the control system and the monitoring room, so that automatic control is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a pipeline grade adjustment device according to a preferred embodiment of the present invention (bottom support mode);
FIG. 3 is a schematic structural diagram (one of the hoisting structures) of another pipeline gradient adjusting device according to the preferred embodiment of the invention;
fig. 4 is a schematic structural view of another pipeline gradient adjustment device according to a preferred embodiment of the present invention (second structure in a hoisting manner);
fig. 5 is a schematic structural view (third lifting mode) of another pipeline gradient adjusting device according to a preferred embodiment of the present invention;
the reference numerals in the drawings denote: 1-a crusher; 2-a belt conveyor; 3, a buffer bin; 4-quantitative coal feeder; 5-grinding; 6-removing impurities and screening; 7-a buffer tank; 8-mixing tank; 9-a discharge pump of the mixing tank; 10.1-a long straight pipe section, 10.2-a long straight pipe section and 11-electric valves; 12-long straight pipe section inlet pressure transmitter; 13-ultrasonic concentration meter; 14-ultrasonic densitometer; 15.1-a straight pipe section transparent observation pipe section; 15.2-a second straight pipe section transparent observation pipe section; 16-hose number one; 17-adjustable pipe section inlet pressure transmitter; 18.1-a pig launch point; 18.2-number two pig launch point; 18.3-third pig launch point; 19-gradient adjustable pipe section; 20-adjustable pipe section pressure transmitter; 21-adjustable transparent observation pipe section; 22-hose No. two; 23-adjustable pipe section outlet pressure transmitter; 24.1-discharge port I; 24.2-second discharge port; 25-an electromagnetic flow meter; 26-pipeline sampling point; 27-loop system outlet pressure transmitter; 28-to the pump delivery system pipe; 29-pump delivery system; 30-unqualified pulp return pipe; 31-waste slurry discharge pipe; 32-a pipeline grade adjustment device; 32.1-bottom cushion; 32.2-pipe carrier; 32.3-hydraulic lifting rod; 32.4-base; 32.5-pulley; 32.6-buffer pad; 32.7-pipe strap; 32.8-electric screw lifting rod; 32.9-beam; 32.10-nut; 32.11-lift cords; 33-a water filling port; a No. 34.1-first water replenishing nozzle and a No. 34.2-second water replenishing nozzle; 35-a metering digital display device; 36-a monitoring room; 37-a control system; 38-inspection pipeline.
The specific implementation mode is as follows:
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:
referring to fig. 1, the present invention relates to a pipe transportation coal slurry quality control and detection system with a gradient adjustment function, which includes a coal slurry pretreatment system, a large sample ring pipe detection system and a control system;
the coal slurry pretreatment system comprises a crusher 1, wherein the lower part of a discharge port of the crusher 1 is connected with a belt conveyor 2, a buffer bin 3 is arranged below the belt conveyor 2, a quantitative coal feeder 4 is arranged below the buffer bin 3, a feeding port of a mill 5 is arranged below the quantitative coal feeder 4, an impurity removing sieve 6 is arranged below a discharge port of the mill 5, a discharge port of the impurity removing sieve 6 is communicated with a buffer tank 7, a mixing tank 8 is arranged behind the buffer tank 7, the lower part of the mixing tank 8 is connected with a discharge pump 9 of the mixing tank, the discharge pump 9 of the mixing tank is provided with a variable frequency motor, and the discharge pump 9 of the mixing tank is connected with a first long straight pipe section 10.1 through a feeding pipeline 38 of a large sample ring pipe detection system; the mill 5 is provided with a water adding port 33, the buffer tank 7 and the mixing tank 8 are respectively provided with a first water adding port 34.1 and a second water adding port 34.2, and the water adding port 33, the first water adding port 34.1 and the second water adding port 34.2 are respectively provided with a metering digital display device 35.
The large sample ring pipe detection system comprises a first long straight pipe section assembly, a gradient-adjustable pipe section assembly and a second long straight pipe section assembly; the first long straight pipe section assembly comprises a first long straight pipe section 10.1, wherein a first electric valve 11.1, a long straight pipe section inlet pressure transmitter 12, an ultrasonic densitometer 13, an ultrasonic densitometer 14 and a first straight pipe section transparent observation pipe section 15.1 are sequentially arranged on the first long straight pipe section 10.1 from left to right; the gradient-adjustable pipe section assembly comprises a first hose 16, a gradient-adjustable pipe section 19 and a second hose 22 which are sequentially communicated; the first hose 16 is communicated with the right end of the first long straight pipe section 10.1, and the left end of the second hose 22 is communicated with the second long straight pipe section component; the first hose 16 is provided with a gradient-adjustable pipe section inlet pressure transmitter 17, the gradient-adjustable pipe section 19 is sequentially provided with a gradient-adjustable pipe section pressure transmitter 20, a gradient-adjustable pipe section transparent observation pipe section 21 and a gradient adjusting device 32, and the second hose 22 is provided with a gradient-adjustable pipe section outlet pressure transmitter 23; the second long straight pipe section assembly comprises a second long straight pipe section 10.2, the right end of which is communicated with a second hose 22, and the second long straight pipe section 10.2 is sequentially provided with a second straight pipe section transparent observation pipe section 15.2, an electromagnetic flowmeter 25, a pipeline sampling point 26, a second long straight pipe section outlet pressure transmitter 27 and a second electric valve 11.2; the second long straight pipe section 10.2 is respectively connected with a pump conveying system 29 and an unqualified pulp return pipe 30 through a three-way pipeline; the unqualified pulp return pipe 30 is respectively connected with the pulp return openings on the tops of the buffer tank 7 and the mixing tank 8.
The coal slurry pretreatment system is connected with the first long straight pipe section 10.1 through a delivery inspection pipeline 38;
wherein, the control system 37 is connected with various devices or apparatuses of the coal slurry pretreatment system and the large sample loop detection system in a wired or wireless (for example, by a control cable) manner;
referring to fig. 2, the slope adjusting device 32 includes a bottom cushion pad 32.1 disposed at the bottom of the slope-adjustable pipe section 19, a pipe bracket 32.2 is disposed at the bottom of the cushion pad 32.1, the pipe bracket 32.2 is made of a flexible deformable material, the diameter of the pipe bracket 32.2 is greater than that of the slope-adjustable pipe section 19, a moving space of the slope-adjustable pipe section 19 in the pipe bracket 32.2 is reserved in the pipe bracket 32.2 when the slope changes, the bottom of the pipe bracket 32.2 is connected to a hydraulic lifting rod 32.3, the hydraulic lifting rod 32.3 is mounted on a base 32.4, a pulley 32.5 is mounted on the base 32.4, and when the hydraulic lifting rod 32.3 is lifted or lowered, the pipe bracket 32.2 and the cushion pad 32.1 are driven to lift or lower correspondingly, so as to drive the slope-adjustable pipe section 19 to lift or lower correspondingly, thereby forming different pipe laying slopes; the electric screw rod lifting rod 32.8 is provided with at least two sections of telescopic arms, a motor is arranged for driving the telescopic arms to stretch, and the nut of the electric screw rod lifting rod 32.8 is pushed forwards, so that the outer sleeve is also pushed forwards along with the nut, the motor rotates reversely, the nut retracts backwards, and the outer sleeve also retracts along with the retraction;
wherein, flexible arm structure includes following mode: 1. each section of the telescopic arm can be extended and retracted section by section according to a certain sequence.
2. The telescopic arms are extended and retracted at the same relative speed.
3. Each arm section can independently carry out the mechanism that stretches out and draws back.
4. When the telescopic arm exceeds three sections, the telescopic mechanism can adopt any two telescopic modes listed above at the same time.
Preferably, the gradient adjustable pipe section 19 is a straight pipe or a bent pipe according to the terrain of the actual pipeline arrangement.
Preferably, in order to facilitate cleaning of a possible clogging condition, a first discharge port 24.1 is further arranged on a first long straight pipe section 10.1 between the first straight pipe section transparent observation pipe section 15.1 and the first hose 16; a second discharge port 24.2 is further arranged on a second long straight pipe section 10.2 between the second straight pipe section transparent observation pipe section 15.2 and the second hose 22; and a third discharge hole 24.3 is formed in the gradient-adjustable pipe section 19. In addition, the pig launching point is installed at the both ends of the adjustable pipeline section of slope and the left end of a long straight pipeline section 10.1, specifically includes a pig launching point 18.1, no. two pig launching points 18.2 and No. three pig launching points 18.3.
Example 2:
referring to fig. 3, the difference from embodiment 1 is that, in this embodiment, another structure of the slope adjustment device is provided, the slope adjustment device 32 includes a buffer 32.6 disposed at the bottom of the slope-adjustable pipe section 19, a pipe clamp 32.7 is disposed outside the buffer 32.6, the pipe clamp 32.7 is made of a flexible deformable material, a diameter of the pipe clamp 32.7 is larger than a diameter of the adjustable pipe 19, a movement space of the adjustable pipe 19 in the pipe clamp 32.7 is reserved in the pipe clamp 32.7 when the slope is changed, the top of the pipe clamp 32.7 is connected to an electric lead screw lifting rod 32.8, the electric lead screw lifting rod 32.8 is mounted inside an opening of the cross beam 32.9, the opening space on the cross beam 32.9 can be used for rotating the electric lead screw lifting rod 32.8 in the opening, and when the electric lead screw lifting rod 32.8 is lifted or lowered, the pipe clamp 32.7 and the buffer 32.6 are driven to lift or lower, so as to drive the adjustable pipe 19 to correspondingly lift or lower, thereby forming different pipe laying slopes.
Example 3:
referring to fig. 4, the difference from embodiment 1 is that, in this embodiment, an elbow 19 is hung on a pipeline gradient adjusting device 32, the pipeline gradient adjusting device 32 is a lead screw rod, the bottom of the elbow 19 is provided with a cushion 32.6, the outside of the cushion 32.6 is provided with a pipe clamp 32.7, the pipe clamp 32.7 is made of a flexible deformable material, the diameter of the pipe clamp 32.7 is larger than that of the elbow 19, a movement space of the elbow 19 in the pipe clamp 32.7 is reserved in the pipe clamp 32.7 when the gradient changes, the top of the pipe clamp 32.7 is connected with an electric lead screw lifting rod 32.8, the electric lead screw lifting rod 32.8 is installed in an opening of a cross beam 32.9, the opening space on the cross beam 32.9 can be used for the electric lead screw lifting rod 32.8 to rotate in the opening, and when the electric lead screw lifting rod 32.8 ascends or descends, the pipe clamp 32.7 and the cushion 32.6 are driven to ascend or descend, so as to drive the elbow 19 to correspondingly ascend or descend, thereby forming different pipeline laying gradients.
The electric screw rod lifting rod 32.8 is provided with at least two sections of telescopic arms, the motor is driven to stretch, the nut of the electric screw rod lifting rod 32.8 is pushed forwards, so that the outer sleeve is also pushed forwards along with the nut, the motor rotates reversely, the nut retracts, and the outer sleeve is also retracted.
The telescopic arm structure comprises the following modes:
1. all sections of the telescopic arm are telescopic section by section in a certain sequence.
2. The telescopic arms are extended and retracted at the same relative speed.
3. Each arm section can independently carry out the mechanism that stretches out and draws back.
4. When the telescopic arm exceeds three sections, the telescopic mechanism can adopt any two telescopic modes listed above at the same time.
Example 4:
please refer to fig. 4, which is different from embodiment 1 in that, the embodiment provides another slope adjustment device with another structure, the elbow 19 is hung on the pipeline slope adjustment device 32, the pipe clamp is installed on the elbow 19, the pipe clamp is connected with the manual adjustment lifting rod, the manual adjustment lifting rod is a hollow cylinder sleeve rod, the manual adjustment lifting rod is connected on the lifting frame, the sleeve rod comprises an inner rod and an outer rod, the inner rod and the outer rod are uniformly perforated, and the adjustment of the length of the sleeve rod is realized through nuts 32.10 installed on the inner rod and the outer rod. When the manual adjusting lifting rod connected to the pipe clamp is lifted or lowered, the pipe clamp and the bent pipe 19 act to drive the bent pipe 19 to correspondingly lift or lower.
Example 5:
referring to fig. 5, the difference from embodiment 1 is that the embodiment provides another gradient adjustment device, an elbow 19 is hung on the pipeline gradient adjustment device 32, a pipe clamp is installed on the elbow 19, a lifting rope 32.11 is connected to the pipe clamp, the lifting rope is connected to a lifting frame, and the lifting frame is placed on the ground. When the lifting rope connected with the pipe clamp is lifted or descended, the bent pipe 19 is driven to correspondingly ascend or descend by the action of the pipe clamp and the bent pipe 19.
Based on the pipe coal slurry quality control detection system with the gradient adjusting function, the invention also relates to a pipe coal slurry adjusting and detecting method with the gradient adjusting function, which comprises a gradient adjusting method; a water adding amount, a coal adding amount and a coal slurry amount regulating and detecting method; coal slurry concentration, coal slurry density, coal slurry particle grading distribution, coal slurry viscosity regulation and control and detection method.
The gradient adjustment method includes: the gradient-adjustable pipe section 19 is lifted by installing a pipeline gradient adjusting device 32 at the bottom, or lifted by hoisting the pipeline gradient adjusting device 32; the pipeline gradient adjusting device 32 is used for lifting the gradient-adjustable pipe section 19, changing the height relative to the ground, simulating the laying gradient of the pipeline under various terrain conditions, and comprehensively considering factors such as coal slurry gradation, coal slurry concentration and different shutdown time durations, thereby realizing simulation research; carrying out hydraulic gradient tests under different pipe diameters, different concentrations and different flow rates and critical flow rate tests under different pipe diameters and concentrations on the slurry with different proportions; thereby realizing simulation tests of different laying gradients;
the adjustable-gradient pipe section 19 is subjected to a simulation experiment according to a preset gradient, the adjustable-gradient pipe section 19 is provided with a pipeline gradient setting tester and a dial, and the dial is provided with an angle value and a gradient value numerical value display; the method for setting different gradients of the pipeline gradient setting tester comprises the following steps: rotating a spiral wheel of the pipeline gradient setting tester to enable a pointer to align with the scale of the set gradient (angle), setting the pipeline gradient, enabling the measuring surface of the tester to be in contact with the pipeline, and adjusting the pipeline until the bubble of the leveling pipe is centered;
the method for determining the preset gradient comprises the following steps:
i= a Q1 + b (Q2) 1/2 +c (Q3) 1/3
in the formula: i represents the laying gradient; ρ represents density; q1 represents a slip angle; q2 represents Angle of repose; q3 represents an angle of repose; the coefficients a, b and c determine values or ranges according to actually measured data of specific conveyed materials;
namely, the laying gradient i is in direct proportion to the slip angle Q1, in direct proportion to the 1/2 power of the repose angle Q2 and in direct proportion to the 1/3 power of the repose angle Q3;
the measuring method of the slip angle, the repose angle and the repose angle comprises the following steps: placing a certain amount of coal slurry conveyed by a pipeline into a horizontal transparent pipeline and standing for a period of time, and lifting the horizontal pipeline for a period of time to incline the pipeline so as to determine the inclination angle (repose angle) of a slurry sedimentary layer and the inclination angle (slip angle) of the pipeline when the sedimentary layer collapses or slides in the inclined pipeline;
when solid particles of coal and material build up in a dune, the solid particles on the slope no longer slide when the slope reaches an angle to the horizontal, which angle is called the angle of repose of the solid particles.
The method for regulating, controlling and detecting the water adding amount, the coal adding amount and the coal slurry amount comprises the following steps:
a quantitative coal feeder 4 is arranged below the buffer bin 3, the feeding amount of the mill 5 is strictly controlled, meanwhile, the accumulated feeding amount data of the mill 5 can also be obtained, the obtained data are sent to a control system 37, and the control system 37 performs feedback control adjustment, wherein if the coal feeding amount is higher, the coal feeding amount of the quantitative coal feeder 4 is reduced, and if the coal feeding amount is lower, the coal feeding amount of the quantitative coal feeder 4 is increased; in addition, a high-level material level meter and a low-level material level meter are arranged in the buffer bin 3, and the coal storage amount data in the bin is obtained in real time;
the method for regulating and detecting the water adding amount comprises the following steps: a metering digital display device 35 is arranged at a water feeding port 33 at the feeding end of the mill 5, a buffer tank 7 and a water replenishing port 34 of the mixing tank 8 are respectively provided with the metering digital display device 35, and the water feeding amount of each point is strictly controlled; the acquired data is sent to a control system 37, and the control system 37 performs feedback control adjustment, wherein if the water adding amount is higher, the water feeding amount of a water adding port at the feeding end of the mill 5 is reduced, and if the water adding amount is lower, the water feeding amount of the water adding port at the feeding end of the mill 5 is increased;
the method for regulating and detecting the coal slurry amount comprises the following steps: set up high level gauge, low level gauge and alarm device in buffer tank 7, compounding jar 8, acquire the coal slurry volume data in buffer tank 7, the compounding jar 8 in real time.
The coal slurry concentration, coal slurry density, coal slurry particle grading distribution and coal slurry viscosity control and detection method comprises the following steps:
arranging a concentration meter on a discharge end pipeline of a buffer coal slurry tank to detect the concentration and the density of the coal slurry on line, and correspondingly adjusting a production system according to the detection result; the acquired data is sent to the control system 37, and the control system 37 performs feedback control adjustment; if the coal slurry concentration and the coal slurry density are higher, reducing the coal feeding quantity of the coal quantitative feeder 4 or increasing the water feeding quantity of a water feeding port at the feeding end of the mill 5, if the coal slurry concentration and the coal slurry density are lower than set values, increasing the coal feeding quantity of the coal quantitative feeder 4 or reducing the water feeding quantity of the water feeding port at the feeding end of the mill 5, and also cooperatively regulating the coal feeding quantity of the coal quantitative feeder 4 and the water feeding quantity of the water feeding port at the feeding end of the mill 5;
the method for manually regulating and detecting the coal slurry concentration and the coal slurry density comprises the steps of setting manual sampling points at the discharge end of a mill 5, a buffer tank 7 and a mixing tank 8, sampling and detecting at regular time, sampling once every 2 hours, and measuring the coal slurry concentration by using a digital display electric heating constant-temperature drying box and an electronic balance;
the method for regulating and controlling the coal slurry particle size distribution comprises detecting the particle size distribution with a particle size analyzer, and regulating and controlling the coal slurry particle size distribution by adjusting the addition amount and the ratio of grinding bodies in a mill 5; the method for regulating and detecting the viscosity of the coal slurry comprises the step of detecting the viscosity of the coal slurry by using a viscometer.
According to the technical scheme, through setting a perfect coal slurry quality control system and method and setting the gradient-adjustable pipe section, semi-industrial experiment simulation research is carried out, the pipeline laying gradient under various terrain conditions is simulated, other parameters are comprehensively considered, a reasonable pipeline laying angle can be determined through experiment simulation, the problem of deposition and blockage caused by improper pipeline laying gradient is avoided, and the safe and economical operation of a pipeline conveying system is guaranteed. The invention can simulate the pipeline transportation of various complex terrains, can freely adjust the pipeline transportation state by reducing the pipeline transportation flow rate or increasing the gradient of a pipeline section, can simulate the pipeline blockage phenomenon by transporting slurry with different parameters such as slurry granularity, concentration, particle gradation and the like, and combines the setting of laying gradient to observe the pipeline blockage process, carry out parameter calculation model research and accumulate valuable experience for the actual pipeline transportation engineering.
According to the technical scheme, through analysis of a large number of slurry material conveying characteristics and pipeline conveying tests and working conditions, part of achievements are applied to engineering projects, reference basis is provided for practical engineering application, engineering such as Shenwei pipeline coal conveying projects and multiple scientific research projects are completed, the combination of experiments and the practice of the pipeline engineering scientific research projects is achieved, the experiment achievements can provide technical support for engineering project construction, and the theory is applied to the engineering to achieve conversion and landing.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and for simplicity in description. And are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The foregoing shows and describes the general principles and features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the structural relationship and principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as claimed.
Claims (10)
1. A pipe transportation coal slurry quality control detection system with a gradient adjusting function is characterized by comprising a coal slurry pretreatment system, a large sample ring pipe detection system and a control system;
the large sample ring pipe detection system comprises a first long straight pipe section assembly, a gradient-adjustable pipe section assembly and a second long straight pipe section assembly;
the first long straight pipe section assembly comprises a first long straight pipe section (10.1), wherein a first electric valve (11.1), a long straight pipe section inlet pressure transmitter (12), an ultrasonic concentration meter (13), an ultrasonic densimeter (14) and a first straight pipe section transparent observation pipe section (15.1) are sequentially arranged on the first long straight pipe section (10.1) from left to right;
the gradient-adjustable pipe section assembly comprises a first hose (16), a gradient-adjustable pipe section (19) and a second hose (22) which are sequentially communicated; the first hose (16) is communicated with the right end of the first long straight pipe section (10.1), and the left end of the second hose (22) is communicated with the second long straight pipe section assembly; a gradient-adjustable pipe section inlet pressure transmitter (17) is arranged on the first hose (16), a gradient-adjustable pipe section pressure transmitter (20), a gradient-adjustable pipe section transparent observation pipe section (21) and a gradient adjusting device (32) are sequentially arranged on the gradient-adjustable pipe section (19), and a gradient-adjustable pipe section outlet pressure transmitter (23) is arranged on the second hose (22);
the second long straight pipe section assembly comprises a second long straight pipe section (10.2) with the right end communicated with a second hose (22), and a second straight pipe section transparent observation pipe section (15.2), an electromagnetic flowmeter (25), a pipeline sampling point (26), a second long straight pipe section outlet pressure transmitter (27) and a second electric valve (11.2) are sequentially arranged on the second long straight pipe section (10.2);
the second long straight pipe section (10.2) is respectively connected with the pump delivery system (29) and the unqualified pulp return pipe (30) through a three-way pipeline;
the coal slurry pretreatment system is connected with a first long straight pipe section (10.1) through a delivery inspection pipeline (38);
the control system (37) is connected with various devices or devices of the coal slurry pretreatment system and the large sample ring pipe detection system in a wired or wireless mode;
the unqualified pulp return pipe (30) is respectively connected with the pulp return openings on the tops of the buffer tank (7) and the mixing tank (8).
2. The pipe coal slurry quality control detection system with the gradient adjusting function is characterized in that the coal slurry pretreatment system comprises a crusher (1), the lower part of a discharge port of the crusher (1) is connected with a belt conveyor (2), the lower part of the belt conveyor (2) is provided with a buffer bin (3), a quantitative coal feeder (4) is arranged below the buffer bin (3), a feeding port of a mill (5) is arranged below the quantitative coal feeder (4), an impurity removing screen (6) is arranged below a discharge port of the mill (5), a discharge port of the impurity removing screen (6) is communicated with a buffer tank (7), a mixing tank (8) is arranged behind the buffer tank (7), the lower part of the mixing tank (8) is connected with a discharge pump (9) of the mixing tank, the discharge pump (9) of the mixing tank is provided with a variable frequency motor, and a ring pipe discharge pump (9) of the mixing tank is connected with a first long straight pipe section (10.1) through a feeding detection pipeline (38) of a large sample detection system; the mill (5) is provided with a water filling port (33), the buffer tank (7) and the mixing tank (8) are respectively provided with a first water replenishing port (34.1) and a second water replenishing port (34.2), and the water filling port (33), the first water replenishing port (34.1) and the second water replenishing port (34.2) are respectively provided with a metering digital display device (35).
3. The system for controlling and detecting the quality of the coal slurry transported by the pipe with the gradient adjusting function as claimed in claim 1, wherein the gradient adjusting device (32) comprises a bottom buffer pad (32.1) arranged at the bottom of the gradient-adjustable pipe section (19), a pipe bracket (32.2) is arranged at the bottom of the buffer pad (32.1), the pipe bracket (32.2) is made of flexible deformable materials, the diameter of the pipe bracket (32.2) is larger than that of the gradient-adjustable pipe section (19), a moving space of the gradient-adjustable pipe section (19) in the pipe bracket (32.2) is reserved in the pipe bracket (32.2) when the gradient is changed, the bottom of the pipe bracket (32.2) is connected with a lifting hydraulic rod (32.3), the hydraulic lifting rod (32.3) is arranged on a base (32.4), a pulley (32.5) is arranged on the base (32.4), and the pipe bracket (32.2) and the buffer pad (32.1) are driven to ascend or descend when the hydraulic lifting rod (32.3) ascends or descends, so as to drive the gradient-adjustable pipe section (19) to ascend or descend correspondingly to form different laying pipelines; electronic lead screw lifting rod (32.8) have two sections at least flexible arms, set up motor drive flexible, and the nut of electronic lead screw lifting rod (32.8) propelling movement forward to the overcoat is also followed the nut and is pushed forward, and the motor reversal, the nut is toward retracting, and the indentation is also followed to the overcoat.
4. The system for controlling and detecting the quality of the coal slurry transported by the pipe with the slope adjusting function as claimed in claim 1, wherein the slope adjusting device (32) comprises a cushion pad (32.6) arranged at the bottom of the slope adjustable pipe section (19), a pipe clamp (32.7) is arranged outside the cushion pad (32.6), the pipe clamp (32.7) is made of a flexible and deformable material, the diameter of the pipe clamp (32.7) is larger than that of the adjustable pipe (19), a moving space of the adjustable pipe (19) in the pipe clamp (32.7) is reserved in the pipe clamp (32.7) when the slope is changed, the top of the pipe clamp (32.7) is connected with an electric screw lifting rod (32.8), the electric screw lifting rod (32.8) is arranged in an opening of the cross beam (32.9), the opening space of the cross beam (32.9) can be used for the electric screw lifting rod (32.8) to rotate in the opening, and the electric screw lifting rod (32.8) drives the pipe clamp (32.7) and the cushion pad (32.6) to lift or lower the adjustable pipe (19) so as to correspondingly lay different pipes.
5. The system for controlling and detecting the quality of the coal slurry transported by the pipe with the gradient adjusting function according to claim 1, wherein a first discharge port 24.1 is further arranged on a first long straight pipe section (10.1) between the first straight pipe section transparent observation pipe section (15.1) and the first hose (16); a second discharge port 24.2 is further formed in a second long straight pipe section (10.2) between the second straight pipe section transparent observation pipe section (15.2) and the second hose (22); and a third discharge hole (24.3) is formed in the gradient-adjustable pipe section (19).
6. A method for regulating and detecting pipe coal slurry with a gradient adjusting function is characterized by comprising a gradient adjusting method; a water adding amount, a coal adding amount and a coal slurry amount regulating and detecting method; coal slurry concentration, coal slurry density, coal slurry particle grading distribution, coal slurry viscosity regulation and control and detection method.
7. The method for regulating and detecting the coal slurry transported by the pipe with the gradient adjusting function according to claim 6, wherein the method comprises the following steps: the gradient adjustment method includes: the gradient-adjustable pipe section (19) is lifted by installing a pipeline gradient adjusting device (32) at the bottom, or lifted by hoisting the pipeline gradient adjusting device (32); the pipeline gradient adjusting device (32) is used for lifting the gradient-adjustable pipe section (19), changing the height relative to the ground, simulating the laying gradient of the pipeline under various terrain conditions, and comprehensively considering factors such as coal slurry gradation, coal slurry concentration and different shutdown time lengths, thereby realizing simulation research; carrying out hydraulic gradient tests under different pipe diameters, different concentrations and different flow rates and critical flow rate tests under different pipe diameters and concentrations on the slurry with different proportions; thereby realizing simulation tests of different laying gradients;
the adjustable-gradient pipe section (19) is subjected to a simulation experiment according to a preset gradient, the adjustable-gradient pipe section (19) is provided with a pipeline gradient setting tester and a dial, and the dial is provided with an angle value and a gradient value numerical value display; the method for setting different gradients of the pipeline gradient setting tester comprises the following steps: the rotating wheel of the pipeline gradient setting tester is rotated to enable the pointer to be aligned with the scale of the set gradient (angle), the pipeline gradient is set, the measuring surface of the tester is contacted with the pipeline, and the pipeline is adjusted until the bubble of the leveling pipe is centered.
8. The method for regulating and detecting the coal slurry transported by the pipe with the gradient adjusting function according to claim 7, wherein the method comprises the following steps: the method for determining the preset gradient comprises the following steps:
i= a Q1 + b (Q2) 1/2 +c (Q3) 1/3
in the formula: i represents the laying gradient; ρ represents density; q1 represents a slip angle; q2 represents angle of repose; q3 represents an angle of repose; the coefficients a, b and c determine values or ranges according to actually measured data of specific conveyed materials;
namely, the laying gradient i is in direct proportion to the slip angle Q1, in direct proportion to the 1/2 power of the repose angle Q2 and in direct proportion to the 1/3 power of the repose angle Q3;
the measuring method of the slip angle, the repose angle and the repose angle comprises the following steps: placing a certain amount of coal slurry conveyed by a pipeline into a horizontal transparent pipeline for standing for a period of time, and lifting the horizontal pipeline for a period of time to incline the pipeline so as to determine that the inclination angle of a slurry sedimentary layer in an inclined pipe is a repose angle and the inclination angle of the pipeline when the sedimentary layer collapses or slides is a slip angle;
when solid particles of coal and material build up in a dune, the solid particles on the slope no longer slide when the slope reaches an angle to the horizontal, which angle is called the angle of repose of the solid particles.
9. The method for regulating and detecting the coal slurry transported by the pipe with the gradient adjusting function according to claim 6, wherein the method comprises the following steps: the method for regulating, controlling and detecting the water adding amount, the coal adding amount and the coal slurry amount comprises the following steps:
a quantitative coal feeder (4) is arranged below the buffer bin (3), the feeding amount of the mill (5) is strictly controlled, meanwhile, the accumulated feeding amount data of the mill (5) can be obtained, the obtained data are sent to a control system (37), and the control system (37) carries out feedback control adjustment, wherein if the coal feeding amount is higher, the coal feeding amount of the quantitative coal feeder (4) is reduced, and if the coal feeding amount is lower, the coal feeding amount of the quantitative coal feeder (4) is increased; in addition, a high-level material level meter and a low-level material level meter are arranged in the buffer bin (3), and the coal storage amount data in the bin is obtained in real time;
the method for regulating and detecting the water adding amount comprises the following steps: metering digital display devices (35) are arranged at a water feeding port (33) at the feeding end of the mill (5), a buffer tank (7) and a water adding port (34) of a mixing tank (8), and the metering digital display devices (35) are arranged to control the water adding amount of each point; the acquired data is sent to a control system (37), and the control system (37) carries out feedback control adjustment, if the water adding amount is higher, the water feeding amount of a water adding opening at the feeding end of the grinding machine (5) is reduced, and if the water adding amount is lower, the water feeding amount of the water adding opening at the feeding end of the grinding machine (5) is increased;
the method for regulating and detecting the coal slurry amount comprises the following steps: set up high level gauge, low level gauge and alarm device in buffer tank (7), compounding jar (8), acquire the coal slurry volume data in buffer tank (7), compounding jar (8) in real time.
10. The pipe-transported coal slurry quality control detection system with the gradient adjustment function according to claim 6, wherein the coal slurry concentration, the coal slurry density, the coal slurry particle grading distribution and the coal slurry viscosity control and detection method comprise the following steps:
arranging a concentration meter on a discharge end pipeline of a buffer coal slurry tank to detect the concentration and the density of the coal slurry on line, and correspondingly adjusting a production system according to the detection result; the acquired data is sent to a control system (37), and the control system (37) carries out feedback control and regulation; if the coal slurry concentration and the coal slurry density are higher, reducing the coal feeding amount of the quantitative coal feeder (4) or increasing the water feeding amount of a water feeding port at the feeding end of the grinding machine (5), if the coal slurry concentration and the coal slurry density are lower than set values, increasing the coal feeding amount of the quantitative coal feeder (4) or reducing the water feeding amount of the water feeding port at the feeding end of the grinding machine (5), and also adjusting and controlling the coal feeding amount of the quantitative coal feeder (4) and the water feeding amount of the water feeding port at the feeding end of the grinding machine (5) in a coordinated manner;
the method for manually regulating, controlling and detecting the coal slurry concentration and the coal slurry density comprises the steps of setting manual sampling points at the discharge end of a mill (5), a buffer tank (7) and a mixing tank (8), carrying out sampling detection at regular time, sampling once every 2 hours, and measuring the coal slurry concentration by using a digital display electrothermal constant-temperature drying oven and an electronic balance;
the method for regulating and detecting the grading distribution of coal slurry particles comprises detecting the particle size distribution by a particle size analyzer, and regulating the grading distribution of coal slurry particles by adjusting the addition amount and the ratio of a grinding body in a mill (5);
the method for regulating and detecting the viscosity of the coal slurry comprises the step of detecting the viscosity of the coal slurry by using a viscometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211635607.8A CN115854261B (en) | 2022-12-20 | 2022-12-20 | System and method for controlling and detecting quality of coal slurry conveyed by pipe with gradient adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211635607.8A CN115854261B (en) | 2022-12-20 | 2022-12-20 | System and method for controlling and detecting quality of coal slurry conveyed by pipe with gradient adjusting function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115854261A true CN115854261A (en) | 2023-03-28 |
| CN115854261B CN115854261B (en) | 2023-07-04 |
Family
ID=85674219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211635607.8A Active CN115854261B (en) | 2022-12-20 | 2022-12-20 | System and method for controlling and detecting quality of coal slurry conveyed by pipe with gradient adjusting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115854261B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4900330A (en) * | 1984-07-30 | 1990-02-13 | Babcock-Hitachi Kabushiki-Baisha | Process for producing a high concentration coal-water slurry |
| US20090214302A1 (en) * | 2005-04-20 | 2009-08-27 | Csir | Control of slurry flow |
| CN105737902A (en) * | 2016-04-18 | 2016-07-06 | 中南大学 | Experimental test system for phosphogypsum filling, stirring and pumping integrated endless tube |
| CN207921474U (en) * | 2017-12-22 | 2018-09-28 | 中建八局第一建设有限公司 | A kind of tube support arrangement |
| CN109556993A (en) * | 2018-11-30 | 2019-04-02 | 中煤科工集团武汉设计研究院有限公司 | Long-distance slurry safety detection of pipelines cyclic system |
| CN110096727A (en) * | 2019-03-05 | 2019-08-06 | 东华理工大学 | A kind of the determination method and application of the optimal slurry of high dense fill slurry self-flowing pastefill |
| CN111044410A (en) * | 2019-12-31 | 2020-04-21 | 陕西神渭煤炭管道运输有限责任公司 | Device and method for detecting rheological property of coal slurry based on safety ring pipe |
| CN111073716A (en) * | 2020-01-10 | 2020-04-28 | 陕西神渭煤炭管道运输有限责任公司 | Production equipment and production method of coal slurry for pipe transportation |
| CN111154522A (en) * | 2020-01-10 | 2020-05-15 | 陕西神渭煤炭管道运输有限责任公司 | Equipment for preparing pipe coal slurry and preparation method thereof |
| CN213655918U (en) * | 2020-10-13 | 2021-07-09 | 北京政平建设投资集团有限公司 | Pipeline leveling support device |
| CN214743804U (en) * | 2021-05-21 | 2021-11-16 | 福建省鸿创建筑工程有限公司 | Municipal water pipe support convenient to adjust slope of water pipe |
-
2022
- 2022-12-20 CN CN202211635607.8A patent/CN115854261B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4900330A (en) * | 1984-07-30 | 1990-02-13 | Babcock-Hitachi Kabushiki-Baisha | Process for producing a high concentration coal-water slurry |
| US20090214302A1 (en) * | 2005-04-20 | 2009-08-27 | Csir | Control of slurry flow |
| CN105737902A (en) * | 2016-04-18 | 2016-07-06 | 中南大学 | Experimental test system for phosphogypsum filling, stirring and pumping integrated endless tube |
| CN207921474U (en) * | 2017-12-22 | 2018-09-28 | 中建八局第一建设有限公司 | A kind of tube support arrangement |
| CN109556993A (en) * | 2018-11-30 | 2019-04-02 | 中煤科工集团武汉设计研究院有限公司 | Long-distance slurry safety detection of pipelines cyclic system |
| CN110096727A (en) * | 2019-03-05 | 2019-08-06 | 东华理工大学 | A kind of the determination method and application of the optimal slurry of high dense fill slurry self-flowing pastefill |
| CN111044410A (en) * | 2019-12-31 | 2020-04-21 | 陕西神渭煤炭管道运输有限责任公司 | Device and method for detecting rheological property of coal slurry based on safety ring pipe |
| CN111073716A (en) * | 2020-01-10 | 2020-04-28 | 陕西神渭煤炭管道运输有限责任公司 | Production equipment and production method of coal slurry for pipe transportation |
| CN111154522A (en) * | 2020-01-10 | 2020-05-15 | 陕西神渭煤炭管道运输有限责任公司 | Equipment for preparing pipe coal slurry and preparation method thereof |
| CN213655918U (en) * | 2020-10-13 | 2021-07-09 | 北京政平建设投资集团有限公司 | Pipeline leveling support device |
| CN214743804U (en) * | 2021-05-21 | 2021-11-16 | 福建省鸿创建筑工程有限公司 | Municipal water pipe support convenient to adjust slope of water pipe |
Non-Patent Citations (2)
| Title |
|---|
| 欧阳增裕;: "管道输煤工程煤浆制备工艺的研究与设计", 煤炭加工与综合利用, no. 05, pages 78 - 80 * |
| 费祥俊;: "煤浆管道输送参数的计算模型", 煤炭学报, vol. 16, no. 01 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115854261B (en) | 2023-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107238553B (en) | Device and method for detecting critical flow rate and sedimentation rate of filling slurry | |
| CN110987702B (en) | Experimental device and test method for simulating geothermal wellbore erosion corrosion under sand-containing condition | |
| CN110685660B (en) | Device and method for realizing accurate control of concentration of sand-carrying fluid in proppant conveying experiment | |
| CN102419257A (en) | Sand conveying test device of sand fracturing and mixing vehicle | |
| WO2019062280A1 (en) | System for testing rheological behavior of slurry | |
| CN113218801A (en) | Testing device and testing method for abrasion test of filling slurry conveying pipeline | |
| CN108051340A (en) | A kind of debris flow slurry dynamic yield stress measuring device and its measuring method | |
| CN108535454A (en) | A kind of soil erosion test system and method | |
| CN114894438A (en) | Experimental device for simulating particle suspension plume discharge | |
| CN112986064A (en) | Simulation karst pipeline network blocks up experimental apparatus that gushes water | |
| CN115854261A (en) | Pipe coal slurry conveying quality control detection system and method with gradient adjusting function | |
| CN107561077A (en) | A kind of adjustable tilt pipe angle Solid-fluid Two-phase Flow test system | |
| CN211415749U (en) | Full-automatic mud performance monitoring adjustment device | |
| US20150290609A1 (en) | Proppant delivery system and method | |
| CN204988944U (en) | Fill ground paste and carry test device | |
| CN214952075U (en) | Detachable lower scale type bed load sand conveying rate measuring device | |
| CN116085037A (en) | Grouting filling device and method based on micro-foam material | |
| CN109855484B (en) | Adjustable quantitative adhesive granulated explosive loading device, control system and control method | |
| CN114624177A (en) | Bulk cargo stacking characteristic parameter test bench | |
| CN115184582A (en) | Rock-soil landslide physical simulation device under erosion-wind erosion coupling erosion effect | |
| CN111024540B (en) | Experimental device and method for measuring erosion rate of test piece in sand-containing water flow | |
| CN109596015B (en) | Adjustable quantitative adhesive granulation explosive loading device | |
| CN211426500U (en) | High slump retaining nature recycled concrete slump test equipment | |
| CN113029843A (en) | Mine filling concentration environment-friendly accurate measuring device | |
| CN208512473U (en) | Continuous asphalt mixture production equipment based on Double-horizontal-shaft action of forced stirring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |