CN105890724B - material metering information collecting device - Google Patents

material metering information collecting device Download PDF

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Publication number
CN105890724B
CN105890724B CN201610256058.1A CN201610256058A CN105890724B CN 105890724 B CN105890724 B CN 105890724B CN 201610256058 A CN201610256058 A CN 201610256058A CN 105890724 B CN105890724 B CN 105890724B
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China
Prior art keywords
conveyor
weight
storage silo
moment
pressure
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CN201610256058.1A
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CN105890724A (en
Inventor
刘立峰
芮立国
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Chengdu Rui Tu Electronics Co Ltd
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Chengdu Rui Tu Electronics Co Ltd
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Priority to CN201610256058.1A priority Critical patent/CN105890724B/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Control Of Conveyors (AREA)

Abstract

In order to make up the above-mentioned shortcoming of the prior art, the measuring accuracy of material and the working status of material transferring there are adhesive aggregation phenomenon are improved, the present invention provides a kind of material metering information collecting device, including：Temperature and humidity detection unit, for the temperature and humidity information according to material storage silo；Pressure sensing cell, for detecting the pressure information received in material conveyor；Weight determination unit, for the information according to temperature and humidity detection unit and pressure sensing cell detection, determines the weight of material passed out by above-mentioned conveyor.Operation requirement is launched for the high-precision of granular material in being produced present invention accomplishes modernization industry, improves the intelligence degree that material is launched and measured.

Description

Material metering information collecting device
Technical field
The present invention relates to industrial production line field of measuring techniques, is filled more particularly, to a kind of material metering information gathering Put.
Background technology
In construction machinery industry, many places will use the metering to material (i.e. raw material), such as in manufacture of cement The measure control of flyash addition, and in Modern New building materials superfine powder and the measure control of additive etc., to these powder The measure control of body material, none does not play a crucial role the yield and quality of cement industry product.Therefore how to protect Stability, quick responding ability and shot and long term precision of the granular material during measure control are demonstrate,proved, is cement industry development So far it must face and solve the problems, such as always.
The mobility of most of granular materials is influenced be subject to moisture and inflation.It is typically due to material and hoards adsorption moisture to make The mobility for obtaining powder material is deteriorated, and shows that material tends to adhesive aggregation and has larger adhesion, its bigger adhesion of moisture is more By force, mobility is poorer so that funnel-form is usually presented in the flow region of powder layer in storehouse, i.e., only feed bin middle body forms material Stream, and the powder in other regions or stream order it is disorderly or stagnate it is motionless, produce flow out after the material first added " after advanced Go out " phenomenon, this liquid form is known as funnel stream.Funnel stream can cause segregation, slug, caking, blanking changing bulk density etc. no Good phenomenon, these phenomenons can cause the maximum error of measuring accuracy.On the other hand, granular material dry or with air-flow Mobility is extremely strong, and showing as material tends to from overflowing (self drainage), and air content is bigger, its mobility is stronger.
In the prior art, for example, the Chinese invention patent application of Application No. CN201110023400.0 discloses one kind Material metering control method and material measuring controller, wherein, which comprises the following steps：Metering is opened Beginning step, opens material bin measuring gate, the material in material bin is fallen to weighing balance, and start recording Dose times (t)；Material The definite step of storehouse measuring gate shut-in time point, by PLC controller target weight of material (mB) as needed, using linear or Non-linear regression method, the at this time time point (tA) of the definite material bin measuring gate closing of calculating and the weight of material in weighing balance (mA)；Material bin measuring gate closes step, as Dose times arrival time tA, or when the weight of material in weighing balance is equal to During mA, material bin measuring gate is closed.However, for these reasons, it can not still solve the material for above-mentioned poor fluidity Weight accurate metering.
The content of the invention
In order to make up the above-mentioned shortcoming of the prior art, the measuring accuracy and thing of the material there are adhesive aggregation phenomenon are improved Expect the working status of transmission, the present invention provides a kind of material metering information collecting device, including：
Temperature and humidity detection unit, for the temperature and humidity information according to material storage silo；
Pressure sensing cell, for detecting the pressure information received in material conveyor；
Weight determination unit, for the information according to temperature and humidity detection unit and pressure sensing cell detection, determines The weight of the material passed out by above-mentioned conveyor.
Further, temperature and humidity detection unit includes：
Material storage silo detection sub-unit, for the M diverse location around material storage silo outwardly and inwardly, detection is deposited Warehouse interior environment temperatureAmbient temperatureInterior humidityAnd outer moistureWherein M, N are the natural number more than 1；
Material transferring band detection sub-unit, for along N number of diverse location of the material transferring with fixed frame bottom, detecting material The temperature of conveyor local environmentAnd humidity
Further, the weight determination unit includes：
The material density determination subelement of conveyor is fallen into, the density p of the material for determining to fall into conveyor：If material Density when entering storage silo is ρ0It is T in the time span of storage silo memory storageStorageHour, then
Material storage silo pressure change detection sub-unit, for detecting the pressure change, elta G of material storage silo；
The cumulative volume V determination units of material on material transferring band, for obtaining the material being passed in conveyor Cumulative volume V, wherein
First detection sub-unit, for the first moment of material transferring band will to be transferred to from storage silo in material, inspection Survey the input power of conveyorAnd the pressure that the L diverse location detection conveyor in conveyor bottom is subject toAnd the thickness of the transmission belt surface material of the predetermined position of conveyorWherein L is the natural number more than 1；
Second detection sub-unit, for material will by from material transferring band put into rotary kiln before the second moment, Detect the output power of conveyorAnd the pressure that the L diverse location detection conveyor in conveyor bottom is subject to Power
Second moment weight of material determination subelement, for determining the weight of material at above-mentioned second moment：
First moment transmission belt surface residuals weight determination subelement, for determining the conveyor at above-mentioned first moment The weight of remained on surface materialWherein P0Represent conveyor it is upper be once cleaned after detection Pressure value；
3rd detection sub-unit, for material by from material transferring band put into rotary kiln after, material transferring band again The 3rd moment of material transferring band will be transferred to from storage silo by returning to material, and the L diverse location in conveyor bottom is examined Survey the pressure that conveyor is subject toAnd the thickness of the transmission belt surface material of the predetermined position of conveyorDetermine The weight of transmission belt surface residuals
Put into weight of material and confirm subelement, for being transmitted band input rotary kiln between the second moment and the 3rd moment Weight of material
Material transferring operating mode determination subelement, for determining
Whether exceed predetermined threshold value, if exceeding, stop the work of above-mentioned material transferring band, material transferring band is carried out clear Reason, and whether the working status for detecting the above-mentioned pressure of measurement, the equipment of the value of temperature and humidity or device is normal.
Further, the thickness of the surface mass of the conveyor is detected by infrared sensor and obtained and by infrared sensing The characterization that device detects.
The beneficial effects of the invention are as follows：The present invention has obtained the cohesiveness granular substance such as cement by a large number of experiments, research Material is subject to take up the temperature of environment, humidity and the variable density on material transferring band in transmitting procedure, and and then according to work( The factors such as the thickness of rate, density and conveyor residue determine whether material transferring operating mode is normal, if need to overhaul material biography The sensor of defeated band and material storage silo, so that the high accuracy met in modernization industry production for granular material is launched Operation requires, and improves the intelligence degree that material is launched and measured.
Brief description of the drawings
Fig. 1 shows the work flow diagram of material metering information collecting device according to the present invention.
Fig. 2 shows the composition structure diagram of material metering information collecting device according to the present invention.
Embodiment
As shown in Figure 1, the material metering information collecting device of the present invention, including：
According to the temperature and humidity information of material storage silo；
The pressure information received in detection material conveyor；
Determine the weight of material passed out by above-mentioned conveyor.
The above-mentioned temperature and humidity information according to material storage silo includes：
Around the M diverse location of material storage silo outwardly and inwardly, storage silo interior environment temperature is detected Ambient temperatureInterior humidityAnd outer moisture
Along N number of diverse location of the material transferring with fixed frame bottom, the temperature of detection material conveyor local environmentAnd humidityWherein M, N are the natural number more than 1.
The weight of the material for determining to be passed out by above-mentioned conveyor includes：
(1) according to the temperature and humidity information of material storage silo, variable density of the acquisition there are the material of adhesive aggregation phenomenon；
(2) pressure that detection conveyor is subject to；
(3) determine to leave the weight of the material of conveyor and the quality of transmission belt surface residuals；
(4) when the transmission belt surface residuals thickness detected exceedes predetermined threshold value, material transmission operation is stopped simultaneously Clear up conveyor.
Specifically, according to a preferred embodiment of the invention, the weight of the material for determining to be passed out by above-mentioned conveyor Including：
(1) determine to fall into the density p of the material of conveyor：If density of the material when entering storage silo is ρ0In storage silo The time span of memory storage is TStorageHour, then
(2) the pressure change, elta G of material storage silo is detected；Here pressure change is by detecting material storage silo over the ground The pressure change in face obtains.
(3) the cumulative volume V for the material being passed in conveyor is obtained, wherein
(4) the first moment of material transferring band will be transferred to from storage silo in material, detects the input work of conveyor RateAnd the pressure that the L diverse location detection conveyor in conveyor bottom is subject toAnd conveyor The thickness of the transmission belt surface material of predetermined positionWherein L is the natural number more than 1；
(5) output of conveyor will be detected by the second moment before putting into rotary kiln from material transferring band in material PowerAnd the pressure that the L diverse location detection conveyor in conveyor bottom is subject to
(6) weight of material at above-mentioned second moment is determined：
(7) weight of the transmission belt surface residuals at above-mentioned first moment is determinedIts Middle P0Represent conveyor it is upper be once cleaned after the pressure value that detects；
(8) material by from material transferring band put into rotary kiln after, material transferring band turn again to material will by from Storage silo is transferred to the 3rd moment of material transferring band, the pressure that the L diverse location detection conveyor in conveyor bottom is subject to PowerAnd the thickness of the transmission belt surface material of the predetermined position of conveyorDetermine conveyor table The weight of face residuals
(9) weight of material with input rotary kiln is transmitted between the second moment and the 3rd moment
(10) determine
Whether exceed predetermined threshold value, if exceeding, stop the work of above-mentioned material transferring band, material transferring band is carried out clear Reason, and whether the working status for detecting the above-mentioned pressure of measurement, the equipment of the value of temperature and humidity or device is normal.
Temperature, humidity and pressure in the present invention use corresponding temperature sensor, humidity sensor and pressure sensing Device detects.Wherein, when detecting pressure, it should be ensured that pressure sensor receives pressure substantially downwardly during detection, that is, ensures During detecting herein the one side of material transferring band carrying material should essentially toward top (i.e. during dispensing) rather than Downward (i.e. during once dispensing finishes preparation dispensing next time).
As shown in Figure 2, there is provided realize the material metering information collecting device of the above method, including：
Temperature and humidity detection unit, for the temperature and humidity information according to material storage silo；
Pressure sensing cell, for detecting the pressure information received in material conveyor；
Weight determination unit, for the information according to temperature and humidity detection unit and pressure sensing cell detection, determines The weight of the material passed out by above-mentioned conveyor.
Wherein, temperature and humidity detection unit includes：
Material storage silo detection sub-unit, for the M diverse location around material storage silo outwardly and inwardly, detection is deposited Warehouse interior environment temperatureAmbient temperatureInterior humidityAnd outer moistureWherein M, N are the natural number more than 1；
Material transferring band detection sub-unit, for along N number of diverse location of the material transferring with fixed frame bottom, detecting material The temperature of conveyor local environmentAnd humidity
According to a preferred embodiment of the invention, the weight determination unit includes：
The material density determination subelement of conveyor is fallen into, the density p of the material for determining to fall into conveyor：If material Density when entering storage silo is ρ0It is T in the time span of storage silo memory storageStorageHour, then
Material storage silo pressure change detection sub-unit, for detecting the pressure change, elta G of material storage silo；Here pressure Power change is to detect material storage silo to the pressure change on ground by using such as pressure sensor to obtain.
The cumulative volume V determination units of material on material transferring band, for obtaining the material being passed in conveyor Cumulative volume V, wherein
First detection sub-unit, for the first moment of material transferring band will to be transferred to from storage silo in material, inspection Survey the input power of conveyorAnd the pressure that the L diverse location detection conveyor in conveyor bottom is subject toAnd the thickness of the transmission belt surface material of the predetermined position of conveyorWherein L is the natural number more than 1；
Second detection sub-unit, for material will by from material transferring band put into rotary kiln before the second moment, Detect the output power of conveyorAnd the pressure that the L diverse location detection conveyor in conveyor bottom is subject to Power
Second moment weight of material determination subelement, for determining the weight of material at above-mentioned second moment：
First moment transmission belt surface residuals weight determination subelement, for determining the conveyor at above-mentioned first moment The weight of remained on surface materialWherein P0Represent conveyor it is upper be once cleaned after detection Pressure value；
3rd detection sub-unit, for material by from material transferring band put into rotary kiln after, material transferring band again The 3rd moment of material transferring band will be transferred to from storage silo by returning to material, and the L diverse location in conveyor bottom is examined Survey the pressure that conveyor is subject toAnd the thickness of the transmission belt surface material of the predetermined position of conveyorDetermine The weight of transmission belt surface residuals
Put into weight of material and confirm subelement, for being transmitted band input rotary kiln between the second moment and the 3rd moment Weight of material
Material transferring operating mode determination subelement, for determining
Whether exceed predetermined threshold value, if exceeding, stop the work of above-mentioned material transferring band, material transferring band is carried out clear Reason, and whether the working status for detecting the above-mentioned pressure of measurement, the equipment of the value of temperature and humidity or device is normal.
It should be noted that it is in terms of thickness unit (such as mm) that the thickness of the surface mass of conveyor, which is not, in the present invention The physical quantity of amount, but the physical quantity of the strong and weak characterization of the signal detected by infrared probe, i.e., thickness of the invention is logical Cross what infrared sensor detection obtained.Specifically, it is (such as saturating that the preferable structure of translucency is provided with the fixed position of conveyor The good flexible fiber of photosensitiveness, flexible rubber etc.), side is fixed with infrared emission probe under this structure, is needing to detect thickness Above the conveyor of position, with being provided with infrared receiver probe on the infrared emitting direction of the infrared emission probe.It is infrared to connect Probe is received according to the infrared signal intensity received, characterizes above-mentioned thickness.
In addition, material alleged in the application is primarily referred to as the graininess such as cement, is easily influenced and produced by temperature and humidity The material of adhesive aggregation phenomenon.
The narration made above for presently preferred embodiments of the present invention is the purpose to illustrate, and is not intended to limit essence of the invention It is really disclosed form, based on teaching above or learns from the embodiment of the present invention and make an amendment or change to be possible , embodiment is to explain the principle of the present invention and allowing those skilled in the art to exist with various embodiments using the present invention Selected in practical application and narration, technological thought of the invention attempt to be determined by claim and its equalization.

Claims (1)

  1. A kind of 1. material metering information collecting device, it is characterised in that including：
    Temperature and humidity detection unit, for the temperature and humidity information according to material storage silo, there are adhesive aggregation phenomenon for acquisition The variable density of material；
    Pressure sensing cell, for detecting the pressure information received in material conveyor；
    Weight determination unit, for the information according to temperature and humidity detection unit and pressure sensing cell detection, determines upper State the weight for the material that conveyor passes out；
    Temperature and humidity detection unit includes：
    Material storage silo detection sub-unit, for the M diverse location around material storage silo outwardly and inwardly, detects storage silo Interior environment temperatureAmbient temperatureInterior humidityAnd outer moistureIts Middle M, N are the natural number more than 1；
    Material transferring band detection sub-unit, for along N number of diverse location of the material transferring with fixed frame bottom, detecting material transferring Temperature with local environmentAnd humidity
    The weight determination unit includes：
    The material density determination subelement of conveyor is fallen into, the density p of the material for determining to fall into conveyor：If material into Density when entering storage silo is ρ0It is T in the time span of storage silo memory storageStorageHour, then
    Material storage silo pressure change detection sub-unit, for detecting the pressure change, elta G of material storage silo；
    The cumulative volume V determination units of material on material transferring band, for obtaining the totality for the material being passed in conveyor Product V, wherein
    First detection sub-unit, for that will be transferred to the first moment of material transferring band from storage silo in material, detection passes The input power of defeated bandAnd the pressure that the L diverse location detection conveyor in conveyor bottom is subject to And the thickness of the transmission belt surface material of the predetermined position of conveyorWherein L is the natural number more than 1；
    Second detection sub-unit, for will be detected in material by the second moment before putting into rotary kiln from material transferring band The output power of conveyorAnd the pressure that the L diverse location detection conveyor in conveyor bottom is subject to
    Second moment weight of material determination subelement, for determining the weight of material at above-mentioned second moment：
    First moment transmission belt surface residuals weight determination subelement, for determining the transmission belt surface at above-mentioned first moment The weight of residualsWherein P0Represent conveyor it is upper be once cleaned after the pressure that detects Force value；
    3rd detection sub-unit, for after being put into rotary kiln from material transferring band in material, material transferring band turns again to Material will be transferred to the 3rd moment of material transferring band from storage silo, and the L diverse location in conveyor bottom, which detects, to be passed The pressure that defeated band is subject toAnd the thickness of the transmission belt surface material of the predetermined position of conveyorDetermine transmission The weight of belt surface residuals
    Put into weight of material and confirm subelement, for being transmitted the thing with input rotary kiln between the second moment and the 3rd moment Expect weight
    Material transferring operating mode determination subelement, for determining
    Whether exceed predetermined threshold value, if exceeding, stop the work of above-mentioned material transferring band, material transferring band is cleared up, And whether the working status for detecting the above-mentioned pressure of measurement, the equipment of the value of temperature and humidity or device is normal；
    The thickness of the surface mass of the conveyor detects the letter for obtaining and being detected by infrared sensor by infrared sensor Number characterization.
CN201610256058.1A 2016-04-22 2016-04-22 material metering information collecting device Expired - Fee Related CN105890724B (en)

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CN105890724B true CN105890724B (en) 2018-04-27

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201425503Y (en) * 2009-06-10 2010-03-17 北京中盛博方环保工程技术有限公司 Miscellaneous material pile measuring system
CN101807062A (en) * 2010-03-11 2010-08-18 中钢集团鞍山热能研究院有限公司 Stock bin control system
DE102014101558A1 (en) * 2013-11-08 2015-05-13 Sartorius Lab Instruments Gmbh & Co. Kg Precision balance with removable climate module
CN104609212A (en) * 2014-12-08 2015-05-13 徐州徐工筑路机械有限公司 Powder residual amount monitoring method and device
CN104697616A (en) * 2015-04-03 2015-06-10 武汉一冶钢结构有限责任公司 Industrial fuel gas quality measurement device and method based on LabVIEW
CN104949748A (en) * 2014-03-31 2015-09-30 宝钢不锈钢有限公司 Method for self-testing of electronic belt weighing in real-time and online way

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201425503Y (en) * 2009-06-10 2010-03-17 北京中盛博方环保工程技术有限公司 Miscellaneous material pile measuring system
CN101807062A (en) * 2010-03-11 2010-08-18 中钢集团鞍山热能研究院有限公司 Stock bin control system
DE102014101558A1 (en) * 2013-11-08 2015-05-13 Sartorius Lab Instruments Gmbh & Co. Kg Precision balance with removable climate module
CN104949748A (en) * 2014-03-31 2015-09-30 宝钢不锈钢有限公司 Method for self-testing of electronic belt weighing in real-time and online way
CN104609212A (en) * 2014-12-08 2015-05-13 徐州徐工筑路机械有限公司 Powder residual amount monitoring method and device
CN104697616A (en) * 2015-04-03 2015-06-10 武汉一冶钢结构有限责任公司 Industrial fuel gas quality measurement device and method based on LabVIEW

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