The quick dehumidifying device of vertical rotary formula coal sample with the moisture detection of dynamic
Technical field
The present invention is mainly concerned with the sample making apparatus field of coal, refers in particular to a kind of quick dehumidifying device of vertical rotary formula coal sample with the moisture detection of dynamic.
Background technology
For coal analysis, be actually a kind of process of sampling analysis.Coal is a kind of inhomogeneous material (granularity, mass property distribution etc.), the female parent of being sampled is larger (tens tons to several ten thousand tons are not waited) generally, be extracted into to greatest extent the process of the representative sample that can represent whole maternal quality and characteristic " sampling ", the various ways methods such as mechanical sampling, artificial sample, half mechanical sampling are arranged at present.Every country all has the pressure standard, must abide by standard and carry out sampling work.
After adopting sample by standard, next process is sample preparation, and the criterion of sample making course is under the prerequisite of not destroying sample representativeness, and sample granularity is reduced gradually, and quality also gradually reduces, until meet laboratory assay to granularity and quality (weight) requirement of sample.Sample making course generally is the processes such as free air dry, fragmentation, division, abrasive dust.Air dry (but also heat drying, but temperature should be less than 50 ℃) process is to reduce the outside moisture of sample, and the fragmentation and the division process that are beneficial to the back are normally carried out.Fragmentation is the process that sample granularity is reduced in the sample making course.The division process is the process that sample is subtracted typically matter, the Coal Characteristics of sample before the part sample that reduces must be able to represent and reduce, the division process also is to finish the process that sample size reduces in the sample making course, and other process Plays regulations should not allow the coal sample loss.Because the sample loss of non-division process (run off such as coal dust, spoil be selected etc.), can change the Coal Characteristics of this sample, selectivity (not necessarily artificial) sample that runs off is that sample making course is definitely unallowed.
For the dry run of coal sample, present existing dehumidification mode is mainly air natural and dries mode: this mode can not change the mass property of coal, but efficient is too low, and chronic (being generally 24~48 hours), and occupied ground is larger.
Summary of the invention
The technical problem to be solved in the present invention just is: for the technical matters that prior art exists, the invention provides a kind of simple in structure, easy to operate, heating uniformity is good, dehumidification efficient high, energy consumption is low, the quick dehumidifying device of vertical rotary formula coal sample with the moisture detection of dynamic that can improve the sample preparation accuracy.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of quick dehumidifying device of vertical rotary formula coal sample with the moisture detection of dynamic, comprise cabinet, vertical rotary mechanism, controller and well heater, the inner chamber of described cabinet is the dehumidification chamber, described well heater is installed in the dehumidification chamber, described vertical rotary mechanism comprises the sample that drives transmission component and be positioned at the dehumidification chamber rotating shaft of spiraling, described sample spirals in the rotating shaft and to be disposed with sample dish suspension arm more than one along circumferencial direction, the below of every sample dish suspension arm all is connected with a sample dish, is placed with the material disc of splendid attire coal sample on each described sample dish; Described moisture detection of dynamic assembly comprises sample weighting rod, claims sample sky gentle title sample lift drive mechanism, one end of described sample weighting rod is connected in and claims on the sample balance, the other end of described sample weighting rod is arranged in the below of the arbitrary position of sample dish rotational travel, and described title sample balance links to each other with title sample lift drive mechanism and finishes elevating movement by title sample lift drive mechanism; Described controller is judged the dynamic water of coal sample and is sent according to the weight signal that claims the collection of sample balance and controls signal to well heater.
As a further improvement on the present invention:
Air-flow stirring device more than one is installed in the described cabinet.
Dehumidifier more than one is installed in the described cabinet.
Be provided with heat-insulation layer between described cabinet lateral wall and the dehumidification chamber.
Described cabinet is provided with chamber door.
Described sample spirals, and rotating shaft is horizontal to be arranged in the dehumidification chamber, and described driving transmission component comprises drive motor and belt drive part, and the output terminal of described drive motor links to each other by the rotating shaft of spiraling of belt drive part and sample.
Described title sample lift drive mechanism comprises weighing drive motor and lifting eccentric wheel, described lifting eccentric wheel is connected on the driving shaft of weighing drive motor, described title sample balance is fixed on the balance hoistable platform, and described lifting eccentric wheel contacts cooperation with the bottom of balance hoistable platform.
Be provided with guidance set between the bottom of described balance hoistable platform and cabinet, described guidance set comprises lifting guide pole and lifting guide holder, any is connected in the below of balance hoistable platform in described lifting guide pole and the lifting guide holder, and another is connected in the bottom of cabinet.
Compared with prior art, the invention has the advantages that: the quick dehumidifying device of vertical rotary formula coal sample with the moisture detection of dynamic of the present invention, adopt the mode that drives coal sample vertical rotary in the dehumidification chamber, in airtight dehumidification chamber, heat, utilize the thermal current of temperature and movement that coal sample is carried out dehumidification, efficient can improve several times to decades of times, in the dehumidification process, introduce simultaneously the weighing process, just can dynamically grasp the dehumidification situation, only the time, in time finish the dehumidification process, improve dehumidification efficient, reduce temporal expense.
Description of drawings
Fig. 1 is that the present invention opens and is in non-structural representation of weighing during normal dehumidification state behind the chamber door.
Fig. 2 is that the present invention opens the structural representation that is in behind the chamber door when weighing state.
Marginal data:
1, cabinet; 101, dehumidification chamber; 102, heat-insulation layer; 2, controller; 3, well heater; 4, vertical rotary mechanism; 401, the sample rotating shaft of spiraling; 402, sample dish; 403, material disc; 404, drive motor; 407, Timing Belt; 408, rotation driving wheel; 409, rotation engaged wheel; 410, motor fixing seat; 411, sample dish suspension arm; 5, coal sample; 6, air-flow stirring device; 7, temperature sensor; 801, sample weighting rod; 802, claim the sample balance; 803, weighing drive motor; 804, lifting eccentric wheel; 805, balance hoistable platform; 808, lifting positioning component; 901, lifting guide pole; 902, lifting guide holder; 18, dehumidifier.
Embodiment
Below with reference to Figure of description and specific embodiment the present invention is described in further details.
As depicted in figs. 1 and 2, the quick dehumidifying device of vertical rotary formula coal sample with the moisture detection of dynamic of the present invention, comprise cabinet 1, vertical rotary mechanism 4, controller 2, more than one well heater 3 and moisture detection of dynamic assembly, the inner chamber of cabinet 1 is dehumidification chamber 101, well heater 3 is installed in the dehumidification chamber 101 and with controller 2 and links to each other, be used for improving the temperature in the dehumidification chamber 101, so that coal sample 5 is carried out the dehumidification operation, 2 of controllers are used for the work of control heater 3.Vertical rotary mechanism 4 comprises the sample that drives transmission component and be positioned at dehumidification chamber 101 rotating shaft 401 of spiraling, the sample rotating shaft 401 of spiraling is arranged along horizontal direction, sample spirals in the rotating shaft 401 and to be disposed with sample dish suspension arm 411 more than one along circumferencial direction, the below of every sample dish suspension arm 411 all is connected with a sample dish 402, in order to guarantee that coal sample 5 keeps static in motion process, sample dish suspension arm 411 is vertically arranged and perpendicular to the arranged direction of sample dish 402.Be placed with the material disc 403 of splendid attire coal sample 5 on each sample dish 402.Moisture detection of dynamic assembly comprises sample weighting rod 801, claims sample balance 802 and claims the sample lift drive mechanism, one end of sample weighting rod 801 is connected in and claims on the sample balance 802, the other end of sample weighting rod 801 is arranged in the below of the arbitrary position of sample dish 402 rotational travel, claims sample balance 802 and claims the sample lift drive mechanism to link to each other and finish elevating movement by title sample lift drive mechanism; Controller 2 is judged the dynamic water of coal sample and is sent according to the weight signal that claims sample balance 802 to gather and controls signal to well heater 3.In use, the environment temperature in 3 pairs of dehumidification chambeies 101 of controller 2 control heaters heats, operating personnel add the coal sample 5 for the treatment of dehumidification in material disc 403, the sample rotating shaft 401 of spiraling is rotated under the driving that drives transmission component, material disc 403 moves in a circle thereupon in vertical direction, to improve the dehumidification efficient of coal sample 5, make it finish fast, uniformly the dehumidification operation.
Introducing the weighing process in the dehumidification process, is in order dynamically to grasp the dehumidification situation, in time finish the dehumidification process only the time, improve dehumidification efficient, reducing temporal expense.If (ti is constantly) sample of weighing by at regular intervals, quality is mi, then has:
Then dehumidification process finishes constantly at ti.
Just can greatly reduce thus the time of dehumidification operation, raise the efficiency.
In the present embodiment, the air-flow stirring device 6 more than is installed in the cabinet 1, this air-flow stirring device 6 can adopt blower fan etc., is used for making the gas flow in the dehumidification chamber 101, to guarantee the homogeneity of dehumidification, improves dehumidification efficient.
In the present embodiment, the dehumidifier 18 more than is installed in the cabinet 1, is used for moisture in 101 environment of dehumidification by absorption chamber, further improve dehumidification efficient, can also keep that air is dry, the constancy that guarantees temperature, reduce energy consumption.Can certainly adopt the mode of hydrofuge, the gas that will be full of moisture is discharged.
In the present embodiment, cabinet 1 is provided with chamber door, and chamber door is connected on the cabinet 1 by hinge, just can finish the operations such as charging, feeding after opening.
In the present embodiment, between cabinet 1 lateral wall and dehumidification chamber 101, be provided with heat-insulation layer 102, be used for guaranteeing the constancy of dehumidification chamber 101 interior temperature, reduce energy consumption.
In the present embodiment, in dehumidification chamber 101, be equiped with temperature sensor 7, be used for detecting in real time the temperature variation in the dehumidification chamber 101, so that 2 pairs of well heaters 3 of controller are controlled in real time.
In the present embodiment, the spiral two ends of rotating shaft 401 of sample are supported in the dehumidification chamber 101 by bearing assembly and are horizontally disposed, and the sample rotating shaft 401 of spiraling links to each other with the clutch end that drives transmission component.Drive transmission component and comprise drive motor 404 and belt drive part, drive motor 404 is installed on the bottom of cabinet 1 by motor fixing seat 410, and the output terminal of drive motor 404 links to each other by the rotating shaft 401 of spiraling of belt drive part and sample.The belt drive part comprises Timing Belt 407, rotation driving wheel 408 and rotation engaged wheel 409, Timing Belt 407 is set around on rotation driving wheel 408 and the rotation engaged wheel 409, rotation driving wheel 408 links to each other with the output shaft of drive motor 404, rotates a spiral end of rotating shaft 401 of engaged wheel 409 and sample and links to each other.
In the present embodiment, claim the sample lift drive mechanism to comprise weighing drive motor 803 and lifting eccentric wheel 804, lifting eccentric wheel 804 is connected on the driving shaft of weighing drive motor 803, claim sample balance 802 to be fixed on the balance hoistable platform 805, lifting eccentric wheel 804 contacts cooperation with the bottom of balance hoistable platform 805.Drive lifting eccentric wheel 804 by weighing drive motor 803 and rotate, balance hoistable platform 805 and sample weighting rod 801 are moved up and down, make sample weighting rod 801 contact with the bottom of sample dish 402 and finish weighing.
In the present embodiment, be provided with guidance set between the bottom of balance hoistable platform 805 and cabinet 1, guidance set comprises lifting guide pole 901 and lifting guide holder 902, any is connected in the below of balance hoistable platform 805 in lifting guide pole 901 and the lifting guide holder 902, another is connected in the bottom of cabinet 1, to guarantee the reliability of balance hoistable platform 805 motions.
In the present embodiment, also further comprise lifting positioning component 808, be used for lifting process is accurately controlled.
Below only be preferred implementation of the present invention, protection scope of the present invention also not only is confined to above-described embodiment, and all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art the some improvements and modifications not breaking away under the principle of the invention prerequisite should be considered as protection scope of the present invention.