CN201072354Y - Device for measuring material position and mill interior temperature of tube ball mill - Google Patents
Device for measuring material position and mill interior temperature of tube ball mill Download PDFInfo
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- CN201072354Y CN201072354Y CNU2007201540712U CN200720154071U CN201072354Y CN 201072354 Y CN201072354 Y CN 201072354Y CN U2007201540712 U CNU2007201540712 U CN U2007201540712U CN 200720154071 U CN200720154071 U CN 200720154071U CN 201072354 Y CN201072354 Y CN 201072354Y
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Abstract
A measurement device for measuring the material level and the temperature in a tube ball mill is provided and comprises an audio frequency transducer and a signal emitter arranged on a drum body of the tube ball mill, a temperature transducer inserted in the drum body of the tube ball mill, a power unit arranged on the drum body of the tube ball mill and connected with the emitter and the transducer, a ground signal receiver used for receiving signals from the signal emitter and a processing and output unit used for processing and outputting the signal received by the signal receiver. The measurement device for measuring the material level and the temperature in a tube ball mill realizes the direct and accurate measurement of the material level and the temperature inside the mill, thereby realizing automatic and optimizing control of the mill. The measuring device if used in the whole milling system is capable of playing more important role in the automatic control of milling system.
Description
Technical field
The utility model relates to a kind of measurement mechanism, especially the measurement mechanism of temperature in measuring tube level of material for ball mill and the mill.
Background technology
The pulverized coal preparation system major part of coal-powder boiler generating plant is middle storage formula steel ball powder-grinding system or double-inlet and double-outlet steel ball powder-grinding system, and above-mentioned pulverized coal preparation system shared ratio in ownership system powder system increases just year by year.Since the sixties, middle storage formula steel ball powder-grinding system realizes that automatic control is one always and solves bad long-standing problem, and also there was same problem in a large amount of in recent years double-inlet and double-outlet steel ball powder-grinding systems that use.Realization is to the good stable automatic control of pulverized coal preparation system, and quality is ground in raising conscientiously, the reduction power consumption becomes pressing for of these electricity power enterprises.Realize that the reason of good automatic control is a lot of and influence pulverized coal preparation system, wherein the pulverized coal preparation system variable is many except having, relevance is strong and postpone the big reason between the variable, and another major reason is ground interior material level exactly and can't accurately directly be measured.
In the cement manufacturing, cement grinding mill and raw mill are the main production equipments in the cement mill, the controlling level of these two grinding systems is one of determinatives of production efficiency, product quality and the electric cost of cement mill, so measurement level and controlling level of material level is to be badly in need of improving equally in its mill.Therefore cement grinding mill and raw mill rely on the direct measurement to material level in grinding more because material level is bigger to grinding efficiency and quality influence.
Measuring method to all kinds of tube mill material levels mainly contains mill sound method, vibratory drilling method, power method and differential pressure method etc. at present.
Traditional mill sound method is measured material level, is audio sensor (electric ear) is installed on around the grinding mill barrel, in order to catch voice signal in the mill.Sound source around the grinding mill barrel is a lot, and the useful acoustic information that has the collision between inner barrel pipe ball, liner plate and grinding charge material to produce also has the motor, gear of external environment condition, other equipment that close on etc. to send interfering noise.According to the operation characteristic of grinding machine with facts have proved, in mill low, the material stock amount of material level after a little while, mill interior loud, audio power is high; When material level rising in the mill, when the material stock amount increases, the interior sound of mill reduces, the audio power reduction.And material level is irrelevant in extraneous noise and the mill, therefore, sound and audio power in the mill are the useful informations that can be used for measuring material level, and the outer noise of mill is to measuring disadvantageous undesired signal, effectively reduce the interference of mill external noise, just can improve the precision and the fiduciary level of level gauging.Whether accurately audio power in how effectively utilization is ground is avoided grinding outer noise jamming, become the interior level gauging of mill key factor.
Traditional vibratory drilling method is measured material level, be that vibration probe is installed on the grinding machine axle bed, when material level changes in the cylindrical shell, the vibration of axle bed changes thereupon, thereby the material stock amount in the mill of the vibration signal indirect reaction by passing over is delivered on the axle bed because the vibration in the mill is a oil film by cylindrical shell and sliding bearing, signal attenuation is very big, the vibration signal of generations such as contiguous grinding machine, motor also can be delivered on the axle bed, and therefore, the material level signal accuracy that this method obtains is also undesirable.
This shows noise jamming and vibration interference that traditional mill sound method, vibratory drilling method can't be avoided external environment, can't meet the demands thereby cause measuring accuracy to be hanged down.And power method and differential pressure rule rely on indirect calculation and judgement to obtain material level information, and be also inaccurate, and the pipeline of differential pressure measurement system is blocked easily, troublesome maintenance.
Therefore, be necessary to design a kind of new measuring tube level of material for ball mill and the measurement mechanism of the interior temperature of mill in fact, to overcome above-mentioned defective.
The utility model content
Fundamental purpose of the present utility model is to be to provide a kind of can realize the measuring tube level of material for ball mill of preferable material level and the interior temperature survey effect of mill and the measurement mechanism of the interior temperature of mill.
To achieve these goals, in measuring tube level of material for ball mill of the present utility model and the mill measurement mechanism of temperature comprise the audio sensor that is installed on this pipe ball mill barrel with signal projector, be plugged in the interior temperature sensor of described pipe ball mill barrel, be installed in the power supply unit that is connected with sensor with each transmitter on the described pipe ball mill barrel and be used for the ground signal receiver of received signal signal that transmitter sends and processing and the output unit that the signal that signal receiver received is handled and exported.
According to an aspect of the present utility model, described audio sensor directly is fixed on the described pipe ball mill barrel, and its probe segment that obtains signal is sticked at the barrel of this rotary barrel.The sound insulation screen layer is installed in the outside of described audio sensor.
According on the other hand of the present utility model, described measurement mechanism can be provided with at least one audio sensor.
According to other aspects of the present utility model, described measurement mechanism also comprises the vibration transducer that is installed on the described pipe ball mill barrel.
According on the other hand of the present utility model, the described signal transmitter unit wireless transmit of signal that records by audio sensor, vibration transducer and temperature sensor by installing on the rotary barrel, and after ground receiving element receives this wireless signal, send signal processing unit to and by mill internal state signals such as the material level of signal output unit outputting standard, temperature, filling rates.
According on the other hand of the present utility model, described power supply unit with the cylindrical shell rotation provides self power generation power supply, photovoltaic power source or the non-contact inductive electric energy transmission system of power for battery, by the cylindrical shell rotation function.
The beneficial effects of the utility model are: the measurement mechanism of temperature has been realized therefore directly accurately the measuring of temperature in material level in grinding and the mill realized grinding machine control and optimal control automatically in measuring tube level of material for ball mill of the present utility model and the mill; This measurement mechanism is applied to especially can play a significant role to the automatic control that realizes grinding system in the whole grinding flour system.
Description of drawings
Describe the utility model embodiment in detail below in conjunction with accompanying drawing, wherein:
Fig. 1 is the front schematic view according to the measurement mechanism of temperature in measuring tube level of material for ball mill of the present utility model and the mill;
Fig. 2 is the side schematic view according to the measurement mechanism of temperature in measuring tube level of material for ball mill of the present utility model and the mill;
Fig. 3 is the synoptic diagram according to the ground signal receiving trap of the measurement mechanism of temperature in measuring tube level of material for ball mill of the present utility model and the mill.
Embodiment
Please in conjunction with consulting Fig. 1, Fig. 2 and Fig. 3, the measurement mechanism 1 of temperature comprises first audio sensor 11 that is installed on this pipe bowl mill measurand cylindrical shell 10 in measuring tube level of material for ball mill of the present utility model and the mill, second audio sensor 12 and the 3rd audio sensor 18, be plugged in the temperature sensor 15 in the described pipe ball mill barrel 10, be installed in the power supply unit 13 on the described pipe ball mill barrel 10, with the signal projector 14 of these power supply unit 13 adjacent settings, be used to receive the ground signal receiver 16 of the signal that described signal projector 14 sent and signal Processing and the output unit 17 that is used with this ground signal receiver 16 with described signal projector 14 is supporting.
To describe in detail to said modules below.
Described first audio sensor 11 (as equipment such as microphone, electric ear, vibration probes), second audio sensor 12, the 3rd audio sensor 18 are directly installed on the pipe ball mill barrel 10 of rotation.The receive direction of described audio sensor 11,12,18 is close to mill shell, fixes with bolt and special washer, and sound insulation screen layer 19 is all installed in the outside of described first audio sensor 11, second audio sensor 12, the 3rd audio sensor 18.Because first audio sensor 11, second audio sensor 12, the 3rd audio sensor 18 seamlessly are close to the diverse location of the drum surface of pipe bowl mill 10, add the blimp sound insulation of the above first audio sensor 11, second audio sensor 12, the 3rd audio sensor 18, so first audio sensor 11, second audio sensor 12, the 3rd audio sensor 18 can receive the audio frequency or the vibration signal of each position in the autogenous tumbling mill, external interference can't be imported into.It is direct, reliable, accurate to measure the sound signal that obtains like this.
The signal that described first audio sensor 11, second audio sensor 12, the 3rd audio sensor 18 and temperature sensor 15 are gathered is delivered to the signal projector 14 that is installed on the cylindrical shell by lead, and signal sends after this is processed into wireless signal through signal processing circuit.The wireless transmission method that above-mentioned transmitter 14 adopts can select for use the uhf band (as bluetooth, WLAN802.11b/g), infrared transmission of V-band, low UHFISM frequency range, 2.4GHz or other to need not the signal transmission form of lead transmission signals according to on-site actual situations flexibly.
Described temperature sensor 15 passes barrel and stretches in the pipe ball mill barrel 10, directly measures partition panel temperature or temperature of charge, and measured temperature signal also directly, accurately.Those skilled in the art will appreciate that also and can on described pipe ball mill barrel 10, replace audio sensor (electric ear, microphone), but further improve the measuring-signal scope with the vibration transducer that can obtain wideer vibration frequency range.
Described power supply unit 13 can rotate with cylindrical shell, this power supply unit 13 can be high-energy battery for above-mentioned audio sensor 11,12,18 and temperature sensor 15, signal projector 14 etc. provide power supply, this power supply unit 13, utilize the self-generating device of cylindrical shell rotation function or optical energy power or the radio source that non-contact inductive electric energy transmitting mode is obtained electric energy.
After ground receiver 16 received signals, handling and change (processing such as A/D conversion, D/A conversion, filtering, amplification, nonlinear algorithm conversion) in signal Processing and output unit 17 becomes direct material level characterization signal (signal that promptly can reflect material level and filling rate information and variation tendency thereof in the pipe ball milling), exports then.The way of output has direct demonstration, standard signal (multiple output modes such as 4～20mA) outputs, standard interface output.Variously be used to debug, demarcate, the operation of output etc. all can carry out at this.
Preferably, can on described pipe ball mill barrel 10, vibration transducer be installed.Audio frequency that described audio sensor and vibration transducer collect and vibration signal can characterize material stock amount in the mill, and temperature sensor is directly measured temperature in the mill.The described sensor of a plurality of identical or different types is worked simultaneously, can directly measure the material level and the temperature of charge of same cylindrical shell diverse location and different compartments.The demarcation of material level is used states such as empty mill and full mill, demarcate in conjunction with concrete grinding machine characteristic and grinding charge material kind.
All be provided with the wireless signal transmission frequency regulation arrangement on signal projector 14 and signal receiver 16, every covering device can be reserved many emissions as required simultaneously, receive frequency range.Can cooperate multisensor independently to receive and export a plurality of measuring-signals of same grinding machine simultaneously, and in same factory building, can measure many grinding machines (more than eight) simultaneously, and guarantee that each signal does not disturb mutually.
The measurement mechanism 1 of temperature is in all multitube bowl mill (claiming kibbling mill, tube mill, steel ball mill, coal pulverizer, baseball grinding machine etc. again) and automatic control system thereof in measuring tube level of material for ball mill of the present utility model and the mill, in order to measure temperature signal in interior material level of mill and the mill, can realize the automatic control of these pipe ball millings.For example be used for following situation: the automatic control of thermal power plant's storage type coal mill level gauging and pulverized coal preparation system; Thermal power plant's double-inlet and double-outlet steel ball grinding material level is measured the automatic control of (measuring the both sides material level simultaneously) and pulverized coal preparation system; The automatic control of cement mill cement grinding mill material level and partition panel temperature survey (can measure the material level in three storehouses simultaneously) and grinding system; The automatic control of temperature survey and grinding system in cement mill raw mill material level and the mill; The automatic control of cement mill coal grinding material level measurement and grinding system; And control automatically such as the grinding machine level gauging and the grinding system of industries such as graphite, iron and steel, pottery, metallurgy.
Because the measurement mechanism 1 of temperature adopts sensor is not directly had the mounting means that the gap is installed on rotating cylinder in measuring tube level of material for ball mill of the present utility model and the mill, fundamentally avoided the influence of ambient noise signal, vibration signal to measuring accuracy, measured signal is undamped, make the signal that obtains on the sensor all come in the autogenous grinding, measuring-signal directly, comprehensively.Therefore, the measurement mechanism 1 of temperature can guarantee to measure in measuring tube level of material for ball mill of the present utility model and the mill directly, accurately, reliable and synchronously, and be further used in the grinding machine automatic control system by the signal that will record, realize the automatic control and the optimal control of grinding flour system.
Claims (7)
1. the measurement mechanism of temperature in measuring tube level of material for ball mill and the mill, it is characterized in that measurement mechanism comprises the audio sensor that is installed on this pipe ball mill barrel and signal projector, be plugged in temperature sensor in the described pipe ball mill barrel, be installed in the power supply unit that is connected with sensor with each transmitter on the described pipe ball mill barrel and be used for the ground signal receiver of received signal signal that transmitter sends and processing and the output unit that the signal that signal receiver received is handled and exported.
2. the measurement mechanism of temperature in measuring tube level of material for ball mill according to claim 1 and the mill, it is characterized in that, described audio sensor directly is fixed on the described pipe ball mill barrel, and its probe segment that obtains signal is sticked at the barrel of this rotary barrel.
3. the measurement mechanism of temperature is characterized in that in measuring tube level of material for ball mill according to claim 2 and the mill, and the sound insulation screen layer is installed in the outside of described audio sensor.
4. according to the measurement mechanism of temperature in described measuring tube level of material for ball mill of one of claim 1-3 and the mill, it is characterized in that described measurement mechanism can be provided with at least one audio sensor.
5. the measurement mechanism of temperature is characterized in that described measurement mechanism also comprises the vibration transducer that is installed on the described pipe ball mill barrel in measuring tube level of material for ball mill according to claim 4 and the mill.
6. the measurement mechanism of temperature in measuring tube level of material for ball mill according to claim 5 and the mill, it is characterized in that, the described signal transmitter unit wireless transmit of signal that records by audio sensor, vibration transducer and temperature sensor by installing on the rotary barrel, and after ground receiving element receives this wireless signal, send signal processing unit to and by mill internal state signals such as the material level of signal output unit outputting standard, temperature, filling rates.
7. the measurement mechanism of temperature in measuring tube level of material for ball mill according to claim 1 and the mill, it is characterized in that described power supply unit with the cylindrical shell rotation provides self power generation power supply, photovoltaic power source or the non-contact inductive electric energy transmission system of power for battery, by the cylindrical shell rotation function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201540712U CN201072354Y (en) | 2007-06-06 | 2007-06-06 | Device for measuring material position and mill interior temperature of tube ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201540712U CN201072354Y (en) | 2007-06-06 | 2007-06-06 | Device for measuring material position and mill interior temperature of tube ball mill |
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| Publication Number | Publication Date |
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| CN201072354Y true CN201072354Y (en) | 2008-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201540712U Expired - Fee Related CN201072354Y (en) | 2007-06-06 | 2007-06-06 | Device for measuring material position and mill interior temperature of tube ball mill |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507031A (en) * | 2011-10-19 | 2012-06-20 | 中国烟草总公司郑州烟草研究院 | Method for directly measuring temperature of wall of heating type rotary drum |
| CN103191826A (en) * | 2013-04-09 | 2013-07-10 | 华北电力大学 | Method for controlling coal quantity stored in ball grinding mill based on kinetic energy of steel ball |
| CN105473232A (en) * | 2013-06-03 | 2016-04-06 | 布勒股份公司 | Roller pair, measuring device, product-processing installation, and method |
-
2007
- 2007-06-06 CN CNU2007201540712U patent/CN201072354Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507031A (en) * | 2011-10-19 | 2012-06-20 | 中国烟草总公司郑州烟草研究院 | Method for directly measuring temperature of wall of heating type rotary drum |
| CN102507031B (en) * | 2011-10-19 | 2014-09-24 | 中国烟草总公司郑州烟草研究院 | Method for directly measuring temperature of wall of heating type rotary drum |
| CN103191826A (en) * | 2013-04-09 | 2013-07-10 | 华北电力大学 | Method for controlling coal quantity stored in ball grinding mill based on kinetic energy of steel ball |
| CN105473232A (en) * | 2013-06-03 | 2016-04-06 | 布勒股份公司 | Roller pair, measuring device, product-processing installation, and method |
| US10569280B2 (en) | 2013-06-03 | 2020-02-25 | Bühler AG | Roller pair, measuring device, product-processing installation, and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yuan Chuanhai Inventor after: Li Kaisheng Inventor before: Yuan Chuanhai |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YUAN ZHUANHAI TO: YUAN ZHUANHAI; LI KAISHENG |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20100606 |