CN103308211A - Temperature measurement system - Google Patents
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- CN103308211A CN103308211A CN2013102591800A CN201310259180A CN103308211A CN 103308211 A CN103308211 A CN 103308211A CN 2013102591800 A CN2013102591800 A CN 2013102591800A CN 201310259180 A CN201310259180 A CN 201310259180A CN 103308211 A CN103308211 A CN 103308211A
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Abstract
The invention provides a temperature measurement system comprising at least one temperature sensor, a transmitter, a fixed support and a control center. A rotary kiln tool to be measured is provided with at least one temperature measuring hole, and each temperature sensor is inserted into one temperature measuring hole. Each temperature measuring hole is formed towards a kiln lining from a shell of a rotary kiln to be measured, and preset thickness is reserved to prevent the kiln lining from being penetrated. The transmitter is mounted on the rotary kiln to be measured through the fixed support, is connected with at least one temperature sensor through compensation wires, receives temperature signals collected from at least one temperature sensor, converts the temperature signals into electrical signals, and transmits the signals to the control center. Hole bottom temperature can be collected in real time, operation state of the rotary kiln can be further judged automatically according to the temperature data, staff involving is omitted, timeliness of temperature measurement and accuracy of judging operation state are improved, and the temperature measured by the temperature measurement system is closer to actual temperature in the kiln than the temperature measured by the prior art.
Description
Technical field
The present invention relates to the detection technique field, particularly relate to a kind of temperature measurement system.
Background technology
Rotary kiln is a kind of cylindrical shape high temperature kiln of tilted-putted continuous rotation, for material being carried out processing such as drying, roasting and calcining.In the production run that has rotary kiln to participate in, the calcining of material is an extremely important procedure in the technological process often, difference according to concrete process environments and requirement, kiln temperature and control to rotary kiln require also different, if can not accurately detect kiln temperature, just possibly can't effectively control fuel supply and the air quantity supply of rotary kiln, axially control is inhomogeneous along rotary kiln to cause kiln temperature, knot kiln or hot spot phenomenon occur.
In rotary kiln long-term production process, the powder that comes off from the pelletizing surface and low melting point are being easy under the hot conditions stick on the furnace lining surface of rotary kiln, form a circle bonding material (being the ring formation thing), and this phenomenon just is called the knot kiln.Through long time integration, the ring formation thing can be more and more thicker, causes the gravity load in the rotary kiln to increase, and causes rotary kiln to seize up; In addition, also furnace lining drawing crack from the kiln shell may peeled off down under the effect of ring formation thing, the ordinary production that influence rotary kiln is moved, and causes repair and maintenance comparatively frequent.
Grasp kiln temperature as shown in the above to guaranteeing the importance of manufacturing condition and equipment safety operation, measurement has brought very big difficulty yet the rotating operation of rotary kiln is but to kiln temperature, mainly is to reflect kiln temperature with the kiln shell surface temperature at present.When needed, the personnel that patrol and examine initiatively detect the surface temperature of kiln shell by portable temperature measurer, this by patrol and examine personnel initiatively the mode of thermometric just make that the promptness of temperature detection is relatively poor, may occur causing judging that according to detected temperatures the rotary kiln running situation lags behind because detecting to lag behind, and then the hot spot phenomenon occur; In addition, heat is after furnace lining is delivered to kiln shell in the kiln, and true temperature differs bigger in the detected temperature in kiln shell place and kiln, can not reflect true temperature in the kiln reliably.
Summary of the invention
The embodiment of the invention provides a kind of temperature measurement system, realizes the purpose of reflection rotary kiln kiln temperature promptly and accurately.
For this reason, the embodiment of the invention provides following technical scheme:
A kind of temperature measurement system, described system comprises at least one temperature sensor, transmitter, fixed support and control center;
Rotary kiln to be measured has at least one temperature detection hole, and each temperature sensor inserts respectively in the described temperature detection hole, and described temperature detection hole, and keeps preset thickness described furnace lining is not penetrated to the perforate of furnace lining direction from the kiln shell of described rotary kiln to be measured;
Described transmitter is installed on the described rotary kiln to be measured by described fixed support, and link to each other with described at least one temperature sensor by compensating wire, receive the temperature signal that described at least one temperature sensor is gathered, transfer to described control center with wireless mode after converting described temperature signal to electric signal.
Preferably, described temperature sensor is thermopair, thermal resistance, infrared thermometer or land surface pyrometer.
Preferably, the diameter in described temperature detection hole is 4mm～16mm.
Preferably, described preset thickness is 50mm～150mm.
Preferably, the extended line in described temperature detection hole is through the central axis of described rotary kiln to be measured.
Preferably, be filled with heat-conducting cream between the bottom in described temperature detection hole and the described temperature sensor.
Preferably, described heat-conducting cream adopts any material in heat conductive silica gel, carbon dust, the metallic tin to make.
Preferably, described system also comprises hot box, then
Described transmitter is installed on the described rotary kiln to be measured by described fixed support, specifically comprises:
Described transmitter is positioned at described hot box, and described hot box is installed on the described rotary kiln to be measured by described fixed support.
Preferably, described system also comprises thermofin, and described thermofin is arranged on the described fixed support, is used for isolating described hot box and rotary kiln to be measured.
Preferably, described thermofin comprises two-layer thermal insulation board and one deck heat insulation foam, and described heat insulation foam is between described two-layer thermal insulation board.
Embodiment of the invention temperature measurement system is applied in the rotary kiln, kiln at rotary kiln arranges the temperature detection hole that at least one does not penetrate furnace lining on one's body, temperature will be near kiln temperature at the bottom of the hole like this, again in can the temperature sensor patchhole of collecting temperature signal, and the temperature signal of gathering gathered to transmitter, radio to control center after being converted to electric signal by it, so scheme just can be gathered the hole bottom temp in real time, and then judge the rotary kiln running situation automatically according to this temperature data, need not anyone and participate in, improved the promptness of temperature detection and the accuracy of judgement operation conditions; And, the detected temperature of the present invention program also than the kiln shell temperature of measuring in the prior art more close to true temperature in the kiln.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the application, for those of ordinary skills, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the synoptic diagram of temperature measurement system of the present invention;
Fig. 2 is the synoptic diagram of preset thickness among the present invention;
Fig. 3 is that temperature sensor is inserted into sectional view behind the temperature detection hole among the present invention;
Fig. 4 is the local enlarged diagram when temperature sensor uses among the present invention.
Embodiment
In order to make those skilled in the art person understand the present invention program better, below in conjunction with drawings and embodiments the embodiment of the invention is described in further detail.
The formation of rotary kiln is next time simply introduced in conjunction with Fig. 1 by following elder generation, shown in the figure is the circumferential cross sectional representation of rotary kiln, rotary kiln is pressed direction of arrow running among the figure, from the furnace lining 12 of the kiln shell 11 that can comprise steel outside to inside, fire resistive material formation and the kiln internal cavity 13 that is used for holding material that is formed by kiln shell and furnace lining.In order to guarantee the normal operation of calcine technology and rotary kiln, kiln temperature should be monitored at any time and be controlled, yet the rotating operation of rotary kiln brings great difficulty but for the measurement of kiln temperature, so the kiln temperature measurement all is a difficult problem all the time.In order to detect the operation conditions of rotary kiln, judge whether it kiln or furnace lining peeling phenomenon occur tying, at present generally be to realize by manual detection and the mode of analyzing the kiln shell temperature, that is to say with the kiln shell temperature and reflect kiln temperature, but this mode is all relatively poor aspect detection promptness and accuracy.
Temperature measurement system of the present invention proposes in order to address the above problem, below introduce in detail the implementation of temperature measurement system of the present invention down.
Referring to Fig. 1, show the synoptic diagram of embodiment of the invention temperature measurement system, described system comprises at least one temperature sensor 20, transmitter 30, fixed support 40 and control center 50; Rotary kiln to be measured has at least one temperature detection hole, and each temperature sensor inserts respectively in the described temperature detection hole, and described temperature detection hole, and keeps preset thickness described furnace lining is not penetrated to the perforate of furnace lining direction from the kiln shell of described rotary kiln to be measured; Described transmitter is installed on the described rotary kiln to be measured by described fixed support, and link to each other with described at least one temperature sensor by compensating wire 60, receive the temperature signal that described at least one temperature sensor is gathered, transfer to described control center with wireless mode after converting described temperature signal to electric signal.
Temperature measurement system of the present invention is applied in the rotary kiln, kiln at rotary kiln arranges a plurality of temperature detection holes that do not penetrate furnace lining on one's body, and with in the temperature sensor patchhole, gathered the temperature (this temperature is close to kiln temperature) of bottom, hole by temperature sensor, and the temperature signal that collects is aggregated into transmitter by compensating wire, radio to control center after by transmitter temperature signal being converted to current signal.The temperature that obtains so more is close to true temperature in the kiln than the kiln shell temperature of manual measurement in the prior art.In addition, temperature measurement system of the present invention need not anyone participation, and temperature sensor is collecting temperature signal and by transmitter output in real time, has improved the promptness of temperature detection; Control center also can directly utilize the temperature data of collection to judge the operational situation of rotary kiln simultaneously.Determination methods can be presented as: can detect the temperature at the different check points of rotary kiln place by the present invention program at the rotary kiln initial stage of coming into operation, and with these temperature as standard temperature.In the follow-up use of rotary kiln, also can constantly detect the temperature at each check point place then, and these temperature are compared with above-mentioned standard temperature, if be complementary with standard temperature, think that then rotary kiln works well; If do not match with standard temperature, and be to be lower than standard temperature, think that then knot kiln phenomenon appears in this check point place; If do not match with standard temperature, and be to be higher than standard temperature, think that then the furnace lining peeling phenomenon appears in this check point place, so do not need the artificial judgement scheme that participates in obviously also to improve promptness and the accuracy judged.
The parts that the temperature measurement system of the present invention of explaining down by reference to the accompanying drawings more below relates to.
1. control center
Control center be used for to receive the data that transmitter sends with wireless mode, so control center at first will have radio communication function, is easily installed in rotary kiln on one's body and can carries out data interaction with it with the transmitter of rotary kiln rotation; Secondly, control center can be used as one independently entity be arranged on rotary kiln one side, carry out reception and the processing of data; Perhaps also can as shown in Figure 1 control center be torn open is two entities that physically separate: a part be for the communication unit 51 of transmitter radio communication, consider the restriction of wireless communication distance, this part preferably is arranged on rotary kiln one side, another part is the processing unit 52 for the treatment of data, this part can be set together with communication unit, also can be arranged on operation room at a distance.For the position being set and form is set of control center, the present invention does not do restriction, handles as long as can receive the data of the transmitter wireless transmission line data of going forward side by side.
2. fixed support and transmitter
Transmitter is installed on the kiln shell of rotary kiln by fixed support, and can rotate with rotary kiln, fixed support is except being fixed in transmitter the kiln shell, also should make and have certain distance between transmitter and the kiln shell, for example the distance between transmitter and kiln shell is 100mm～150mm, so just can make transmitter be positioned at a zone that temperature is comparatively suitable, be unlikely to the performance because of the temperatures involved transmitter of rotary kiln.
In addition, because a plurality of temperature sensors all link to each other with transmitter by compensating wire and transmit weak electric signal, therefore connect up for convenience, fixed support can be arranged on the center of a plurality of temperature sensors, just transmitter is arranged on the center of a plurality of temperature sensors.
3. temperature detection hole
In order to reflect the working order at rotary kiln diverse location place accurately by temperature as far as possible, temperature detection needs in the time of can producing according to actual process, at kiln a plurality of temperature detection hole is set on one's body: for example, when needing detection kiln hood place whether to occur tying kiln, the circle temperature detection hole coaxial with the rotary kiln central axis can be set at the kiln hood place; When need detecting rotary kiln integral body and whether occurring tying the kiln phenomenon, can be in kiln hood, kiln, the kiln tail arranges the three circles temperature detection hole coaxial with central axis respectively, referring to Fig. 1, what illustrate namely is 4 temperature detection holes that are positioned on the same circle.In addition, except can be in a manner described the arranging the temperature detection hole that lopping distributes of rule, also can be along the irregular temperature detection hole that arranges of rotary kiln axial direction.The present invention can not do restriction to offering the temperature detection hole in which position of kiln body, as long as can reflect the temperature that needs detection place.
In addition, also have following 2 needs explanation for the temperature detection hole:
The perforate direction, for from kiln shell along furnace lining to kiln in the direction perforate, hole bottom is in furnace lining and near direction in the kiln, the top, hole is opened in the kiln shell place, temperature sensor reflects situation in the kiln by the mode of gathering the hole bottom temp;
The perforate degree of depth, be as the criterion not penetrate furnace lining, be also to keep one section preset thickness in the distance from bottom kiln of hole, so just can prevent that temperature sensor from directly entering kiln internal cause high temperature or material impacting is impaired, can prevent also that simultaneously knot kiln phenomenon from appearring in temperature sensor in kiln; Comprehensive foregoing is considered to make the hole bottom temp as far as possible close to kiln temperature again, and preset thickness of the present invention is preferably d=50mm～150mm (specifically can do sign referring to Fig. 2).
Need to prove, because rotary kiln will be calcined a large amount of materials in rotary course, therefore when practical application, also to consider to utilize the present invention program at kiln the intensity whether the temperature detection hole can influence rotary kiln to be set on one's body, that is to say when realizing the object of the invention, in order to guarantee rotary kiln intensity, should be the temperature detection hole and determine a suitable diameter.As preferred version of the present invention, the temperature detection hole diameter can be 4mm～16mm, if diameter is excessive, may influences rotary kiln intensity, and there is no need detect required because the perforate in this scope can be satisfied general temperature sensor fully; If diameter is too small, then to detect the difficulty of construction in hole bigger for kiln temperature, needs that can not the satisfied temperature sensor.
As a preferred embodiment of the present invention, the extended line in temperature detection hole should be through the central axis of rotary kiln to be measured.Like this, under the identical situation of temperature detection hole depth, the preset thickness minimum that the temperature detection hole that preferred version forms keeps in furnace lining, the temperature sensor temperature of gathering in the bottom, hole is with regard to true temperature in more close to kiln like this.
4. temperature sensor
Temperature sensor is inserted in the temperature detection hole, be used for to gather the temperature of bottom, hole, reflects kiln temperature by the hole bottom temp, directly detects the mode of kiln shell temperature in compared to existing technology, and the temperature of the present invention program's acquisition is more close to true temperature in the kiln.
Particularly, the temperature sensor among the present invention can be presented as thermopair, thermal resistance, infrared thermometer or land surface pyrometer.If temperature sensor is thermopair, then adopt the thermopair of common K calibration get final product, its temperature range that is suitable for is-100 ℃～1000 ℃, even the furnace lining peeling phenomenon appears in rotary kiln, thermopair also can bear the temperature of correspondence and not impaired at short notice.
Referring to Fig. 3,4, wherein Fig. 3 shows the sectional view after temperature sensor is inserted into the temperature detection hole, local enlarged diagram when Fig. 4 shows the temperature sensor use, temperature detection hole 70 is opened on one's body the rotary kiln, in temperature sensor 20 (among the figure be example with the thermopair) patchhole, the working end (or being called measuring junction) of directly measuring temperature closely contacts with the bottom, hole as far as possible, gathers the hole bottom temp by it, makes the temperature of collection as far as possible close to true temperature in the kiln; Lead-in wire 21 by the temperature sensor terminals links to each other with compensating wire 60 then, and finally by compensating wire the temperature of gathering is transferred to transmitter.
Do the introduction except above-mentioned institute, also there is following preferred version in system for detecting temperature of the present invention, the existing explanation that makes an explanation one by one.
System's preferred version one
Because temperature sensor and furnace lining all are hard attitude things, and the temperature detection hole may have rough place in making casting cycle, especially directly bottom contacted hole, temperature sensor working end if during rough situation, will make the slit that exists between bottom, hole and the working end to a certain degree, air in the slit may influence the temperature value that temperature sensor is gathered, and also may influence the judged result to the rotary kiln operational situation when serious.In order to eliminate in the slit air to the influence of thermometric, the present invention also preferably fills heat-conducting cream 80 (specifically can referring to Fig. 3) between the bottom in temperature detection hole and temperature sensor.Heat-conducting cream can be eliminated the slit of working end and hole bottom on the one hand, and the two is fully contacted; Can also strengthen the bottom, hole on the other hand to the heat-conducting effect of working end, make the temperature of temperature sensor collection more close to kiln temperature.
When selecting to make the material of heat-conducting cream, note following several respects: can bear the bottom, hole and conduct high temperature in the kiln that and be not vaporized, and coefficient of heat conductivity should be high as far as possible, strengthen the bottom, hole to the rate of heat transfer of working end, in addition, consider that the temperature detection hole can rotate with rotary kiln, therefore should be on-gaseous thing when working temperature (for example still be Powdered or molten state) when it is in working temperature, heat-conducting cream flows out or severe thermal takes place when avoiding gasifying in the finite space and expands when avoiding the temperature detection hole down.Take all factors into consideration above-mentioned several respects, the present invention preferably adopts in the materials such as heat conductive silica gel, carbon dust, metallic tin any to make heat-conducting cream.
System's preferred version two
Because rotary kiln is in the high temperature operation state all the time when calcining, be installed in kiln on one's body and the electronic devices and components of the transmitter that rotates with rotary kiln may be at high temperature impaired, even influence the effect of its inversion temperature signal or transmission of electric signals, therefore keep between transmitter and the kiln shell the certain distance except making, a hot box 90 (specifically can referring to Fig. 1) also can be set.In this preferred version, fixed support directly is not fixed on transmitter on the kiln shell, but hot box is fixed on the kiln shell, transmitter is placed in the hot box, that is to say, fixed support passes through the fixedly mode indirect securement transmitter of hot box, and after hot box carried out the temperature obstruct, transmitter just can be worked under a relatively suitable temperature like this.
System's preferred version three
Be the purpose for the protection transmitter equally; the present invention also provides another kind of preferred version; at fixed support a thermofin 91 is set exactly; be used for isolating transmitter and kiln shell; the high temperature that distributes of rotary kiln arrives the transmitter place through the iris action of thermofin and also has remarkable reduction like this, and transmitter is worked under relatively suitable temperature.As a kind of specific implementation of thermofin of the present invention, thermofin can comprise two-layer thermal insulation board and one deck heat insulation foam, and described heat insulation foam is between described two-layer thermal insulation board.
Certainly, when using, reality also hot box 90 and thermofin 91 can be combined (specifically can referring to Fig. 1), that is to say, transmitter is installed in the hot box, and further isolate hot box and rotary kiln kiln shell by the thermofin that is installed on the fixed support, farthest reduce heat that rotary kiln distributes to the influence of transmitter.
Above introduced the specific implementation of temperature measurement system of the present invention, below again in conjunction with another kind of existing thermometric mode, to the explanation that makes an explanation of the benefit of system of the present invention.
Consider the problem that the mode of manual detection kiln shell temperature exists, also exist another to be called as the thermocouple temperature measurement method of contact in the prior art, this method will be inserted into thermopair in the kiln, directly measure kiln temperature and output, though this method can obtain the true temperature in the kiln, has following problem:
1. thermopair directly inserts in the kiln and will contact with the high-temperature material rolling in the kiln; the protective casing of a protection thermopair need be set; thermopair is placed in the protective casing; and then insert the two in the kiln together; this mode requires all higher to material and the heat impedance of thermopair and protective casing; can only adopt the very expensive special thermopair of price to realize, improve the thermometric cost.
2. thermopair and protective casing directly contact with the high-temperature material rolling and also make the two breaking-up that is easy to be worn, and this not only influences the serviceable life of the two, also may influence the accuracy of thermocouple temperature measurement, thermopair even can lose temp sensing function in the time of seriously.In order to guarantee the accuracy of temperature-measuring results, the thermopair that can only in time more renew and protective casing, this has just increased the thermometric cost.
3. because thermopair can directly contact with material in the kiln with protective casing, then the powder that comes off from the pelletizing surface and low melting point are easy to tie kiln at thermopair under hot conditions, and this also can influence the accuracy of thermocouple temperature measurement.
4. will be in protective casing inserts kiln because of thermopair; the hole that just makes kiln offer on one's body is very big; and for fear of influence rotary kiln intensity because of perforate; can only reduce perforate quantity; existing rotary kiln is offered two holes general maximum of the same area; though like this thermopair can obtain the true temperature in the kiln, can't gather the temperature that reflects rotary kiln integral body, and then operating personnel also just can't accurately grasp the operation conditions of rotary kiln integral body.For example, in the kiln hood of rotary kiln and kiln, offer two holes, then can only judge the operation conditions at this two place by the temperature that thermopair detects, for the kiln tail, can not direct temperature measurement, consider simultaneously in kiln tail and kiln hood, the kiln to differ greatly in temperature and burning feature, can not utilize the temperature at this two place to analogize kiln end temperature again, therefore can't obtain the operation conditions of rotary kiln on the whole.In addition, if offer two holes in the kiln hood place of rotary kiln correspondence, then thermopair can only detect the temperature at this two place, and then judge whether this two place kiln occurs tying, and the temperature in other place of kiln hood (as the perpendicular place of the line in the hole corresponding with two) also is difficult to obtain, and operating personnel can't grasp the operation conditions of rotary kiln integral body equally in this case.
Compare with the thermocouple temperature measurement method of above-mentioned contact, just there are not the problems referred to above in temperature measurement system of the present invention, because the temperature sensor among the present invention (be example with the thermopair) need not directly bear in the kiln high temperature and can be not directly and the interior material of kiln direct, therefore can select for use the ordinary hot galvanic couple to get final product, cost has reduced by tens times than above-mentioned special thermopair, and from angle consideration in serviceable life, the present invention program has also reduced the thermometric cost relatively; In addition; the do not need protection protection of sleeve pipe of thermopair among the present invention; so opening diameter is much smaller; and perforate can not penetrate furnace lining; just make the present invention program when guaranteeing rotary kiln intensity, can offer more hole, these pore size distributions in kiln hood, kiln, the kiln tail; not only can reflect the operation conditions of rotary kiln on the whole, also the mode that can utilize a plurality of test points to average guarantees the accuracy of somewhere temperature-measuring results.
The present invention program can describe in the general context of the computer executable instructions of being carried out by computing machine, for example program element.Usually, program element comprises the routine carrying out particular task or realize particular abstract data type, program, object, assembly, data structure etc.Also can in distributed computing environment, put into practice the present invention program, in these distributed computing environment, be executed the task by the teleprocessing equipment that is connected by communication network.In distributed computing environment, program element can be arranged in the local and remote computer-readable storage medium that comprises memory device.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and identical similar part is mutually referring to getting final product between each embodiment, and each embodiment stresses is difference with other embodiment.Especially, for device embodiment, because it is substantially similar in appearance to method embodiment, so describe fairly simplely, relevant part gets final product referring to the part explanation of method embodiment.Device embodiment described above only is schematic, wherein said unit as the separating component explanation can or can not be physically to separate also, the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select wherein some or all of module to realize the purpose of present embodiment scheme according to the actual needs.Those of ordinary skills namely can understand and implement under the situation of not paying creative work.
More than the embodiment of the invention is described in detail, used embodiment herein the present invention set forth, the explanation of above embodiment just is used for helping to understand method and apparatus of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a temperature measurement system is characterized in that, described system comprises at least one temperature sensor, transmitter, fixed support and control center;
Rotary kiln to be measured has at least one temperature detection hole, and each temperature sensor inserts respectively in the described temperature detection hole, and described temperature detection hole, and keeps preset thickness described furnace lining is not penetrated to the perforate of furnace lining direction from the kiln shell of described rotary kiln to be measured;
Described transmitter is installed on the described rotary kiln to be measured by described fixed support, and link to each other with described at least one temperature sensor by compensating wire, receive the temperature signal that described at least one temperature sensor is gathered, transfer to described control center with wireless mode after converting described temperature signal to electric signal.
2. system according to claim 1 is characterized in that, described temperature sensor is thermopair, thermal resistance, infrared thermometer or land surface pyrometer.
3. system according to claim 1 is characterized in that, the diameter in described temperature detection hole is 4mm～16mm.
4. system according to claim 1 is characterized in that, described preset thickness is 50mm～150mm.
5. system according to claim 1 is characterized in that, the extended line in described temperature detection hole is through the central axis of described rotary kiln to be measured.
6. system according to claim 1 is characterized in that, is filled with heat-conducting cream between the bottom in described temperature detection hole and the described temperature sensor.
7. system according to claim 6 is characterized in that, described heat-conducting cream adopts any material in heat conductive silica gel, carbon dust, the metallic tin to make.
8. according to each described system of claim 1 to 7, it is characterized in that described system also comprises hot box, then
Described transmitter is installed on the described rotary kiln to be measured by described fixed support, specifically comprises:
Described transmitter is positioned at described hot box, and described hot box is installed on the described rotary kiln to be measured by described fixed support.
9. system according to claim 8 is characterized in that, described system also comprises thermofin, and described thermofin is arranged on the described fixed support, is used for isolating described hot box and rotary kiln to be measured.
10. system according to claim 9 is characterized in that, described thermofin comprises two-layer thermal insulation board and one deck heat insulation foam, and described heat insulation foam is between described two-layer thermal insulation board.
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| CN104931147A (en) * | 2015-05-08 | 2015-09-23 | 中冶长天国际工程有限责任公司 | Motor-driven type rotary kiln direct temperature measuring device |
| CN105509920A (en) * | 2016-01-04 | 2016-04-20 | 中国电子信息产业集团有限公司第六研究所 | Industrial high temperature tilting furnace wireless temperature measuring device |
| CN106922765A (en) * | 2017-03-08 | 2017-07-07 | 甘德强 | Food kiln |
| CN113049112A (en) * | 2021-03-22 | 2021-06-29 | 张峰亮 | Bearing roller axle bush temperature measuring device |
| CN113049112B (en) * | 2021-03-22 | 2022-06-14 | 张峰亮 | Bearing roller axle bush temperature measuring device |
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