CN203837983U - External-fan type coal sample dehumidifying device - Google Patents
External-fan type coal sample dehumidifying device Download PDFInfo
- Publication number
- CN203837983U CN203837983U CN201320850890.6U CN201320850890U CN203837983U CN 203837983 U CN203837983 U CN 203837983U CN 201320850890 U CN201320850890 U CN 201320850890U CN 203837983 U CN203837983 U CN 203837983U
- Authority
- CN
- China
- Prior art keywords
- coal sample
- casing
- sample
- dehumidifying device
- dish
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses an external-fan type coal sample dehumidifying device which comprises a box body, a controller and a partition plate arranged in the box body, wherein the box body is divided into two chambers by the partition plate; one or more coal sample trays for holding coal samples are placed on the partition plate, and one or more through holes are formed in the bottom of each coal sample tray; a fan is arranged at the external part of the box body and is communicated with the inner chambers of the box body. The external-fan type coal sample dehumidifying device has the advantages of simple structure, convenience in operation, high dehumidifying efficiency and the like, can ensure the ventilated effect of the samples and can be used for improving the humidity control quality.
Description
Technical field
The utility model is mainly concerned with the sample making apparatus field of coal, refers in particular to a kind of coal sample dehumidifying device that adopts gas penetration formula.
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 being sampled is larger (tens tons to several ten thousand tons not etc.) generally, be extracted into greatest extent the process of the representative sample that can represent whole maternal quality and characteristic " sampling ", have at present the various ways methods such as mechanical sampling, artificial sample, half mechanical sampling.Every country all has pressure standard, must carry out sampling work in accordance with standard.
By standard, adopt after sample, next process is sample preparation, and the criterion of sample making course is not destroy under the prerequisite of sample representativeness, sample granularity is reduced gradually, and quality also gradually reduces, until meet laboratory assay to the granularity of sample and quality (weight) requirement.Sample making course is generally the processes such as free air dry, fragmentation, division, abrasive dust.Air dry (also can 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 below are normally carried out.In sample making course, fragmentation is the process that sample granularity is reduced.Division process is the process of matter that sample is subtracted typically, the Coal Characteristics of sample before the part sample reducing must be able to represent and reduce, division process is also in sample making course, to complete the process that sample size reduces, and other process Plays regulations should not allow coal sample loss.Because the sample loss of non-division process (as coal dust runs off, 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, current existing dehumidification mode mainly contains two kinds:
(1) air natural dries mode: which can not change the mass property of coal, but efficiency is too low, and chronic (being generally 24～48 hours), and occupied ground is larger.
(2) hot blast and large oven for drying mode: which is to carry out the dry dehumidification of coal sample with high-power heating lamp or high-power baking oven.This class mode is not because analyze two of the mass transfer of dehumidification process stages, and moisture evaporation is only carried out on material surface, and the material of internal layer is difficult to evaporate moisture, once and the air on the material surface water absorbing capacity that reaches capacity, just can not suck again moisture.The air on surface is if do not taken away in time or take a breath, and in fact moisture evaporation can stop.Therefore not dehumidification too soon of which, efficiency equally can be very low, and the time can be very long.What use due to baking oven is conventional fan, and air exchanging rate is slow, and scavenging efficiency is low, therefore can make the air in case approach saturated water suction, so uses the efficiency of oven drying high-moisture material can be very low.
There is practitioner that a kind of drying proposal based on the saturating mode of wind is further provided, utilize hot blast to penetrate material, make material complete dehumidification.But traditional this equipment is directly installed on the blower fan that is used for driving hot blast to move and carries out in dry casing often.Known according to the principle that wind is saturating, for realizing the saturating effect of the abundant wind of sample materials, reach humidity and control object, guaranteeing that sample does not blow away under the prerequisite of (sample integrity), power source wind speed should be tried one's best greatly, increases power source frequency; But, once increase power source frequency, will make its blower fan together with the vibration aggravation of casing, and then cause that whole cabinet and cabinet inside part produce resonance.Generation is compared with large amplitude or when resonance, especially, when sample is the inhomogeneous solid of particle, can produce following problem:
1) sample drops from sample dish hole.
2) vibration makes the layering of sample segregation, and a fine particle sample part is blown away and flies away, and causes sample loss; A part is gathered in sample tray bottom, causes sample room gap obviously to diminish, and windage increases, thereby affects the saturating effect of wind, reduces humidity control efficiency.
3) power source noise is large, in cabinet, empathizes, and makes operating environment become severe, is unfavorable for man-machine interaction.
4) power source Long-term Vibration, can reduce device components serviceable life.
5) power source volume is large, is placed in humidity controlling unit and will makes equipment volume excessive, high to site requirements, and is unfavorable for plant maintenance.
Utility model content
The technical problems to be solved in the utility model is just: the technical matters existing for prior art, the utility model provide a kind of simple in structure, easy to operate, dehumidification efficiency is high, can guarantee the saturating effect of sample wind, improve the external blower type coal sample dehumidifying device that humidity is controlled quality.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of external blower type coal sample dehumidifying device, comprise casing, controller and be installed in the dividing plate in casing, described dividing plate is separated into two chambers by casing, on described dividing plate, be placed with a coal sample dish that is used for above splendid attire coal sample, the bottom of described coal sample dish offers more than one air vent, outer setting one blower fan of described casing, described blower fan is communicated with the inner chamber of casing.
As further improvement of the utility model: the below of described coal sample dish is provided with for collecting the coal sample holder of sample.
As further improvement of the utility model: the side in described casing forms return air channel, one end of described return air channel is communicated with the top chamber of casing, the other end is communicated with to form circulation air path with the bottom chamber of casing, and gas humidity controller and/or temperature controller are installed in described return air channel.
As further improvement of the utility model: be provided with in described return air channel for detecting the wind gage of hot blast flow velocity, described controller is connected with blower fan by a frequency converter; Thereby the wind velocity signal that described controller gathers according to wind gage and default wind speed are relatively adjusted the rotating speed of blower fan by frequency converter.
As further improvement of the utility model: described coal sample holder comprises from top to bottom connected successively support portion, ventilation unit and receipts sample portion, described support portion is supported on dividing plate, described coal sample dish is positioned over the top of support portion, and described receipts sample portion is positioned at the below of support portion.
As further improvement of the utility model: described coal sample holder and coal sample dish are one-body molded.
Compared with prior art, the utility model has the advantage of: external blower type coal sample dehumidifying device of the present utility model, the dehumidification mode that adopts hot blast to penetrate, effectively increased the evaporation surface of coal sample, efficiency can improve several times to decades of times, further below coal sample dish, be provided with for collecting the coal sample holder of sample, guaranteed the integrality of coal sample, improved the accuracy of sample preparation simultaneously.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model.
Fig. 2 is the layout principle schematic of return air channel in casing.
Fig. 3 is the plan structure schematic diagram of coal sample dish in the utility model.
Fig. 4 is the sectional structure schematic diagram at B-B place in Fig. 3.
Fig. 5 is the plan structure schematic diagram of coal sample holder in the utility model.
Fig. 6 is the sectional structure schematic diagram at C-C place in Fig. 5.
Fig. 7 is that in the utility model, coal sample dish is positioned over the structural representation after combination in coal sample holder.
Fig. 8 is the structural representation that coal sample holder in another embodiment and coal sample dish adopt integrated molding.
Marginal data
1, casing; 2, blower fan; 3, dividing plate; 4, controller; 5, coal sample dish; 6, humidity controller; 7, coal sample holder; 8, return air channel; 9, wind gage; 10, frequency converter; 51, air vent; 71, support portion; 72, ventilation unit; 73, receive sample portion; 11, coal sample; 12, sealing gasket.
Embodiment
Below with reference to Figure of description and specific embodiment, the utility model is described in further details.
As depicted in figs. 1 and 2, external blower type coal sample dehumidifying device of the present utility model, comprises casing 1, controller 4 and is installed in the dividing plate 3 in casing 1, dividing plate 3 is separated into two chambers by casing 1, is respectively bottom chamber and top chamber.Outer setting one blower fan 2 of casing 1, blower fan 2 is communicated with the inner chamber of casing 1.The external mode of this employing source of the gas of the utility model, has fundamentally thoroughly solved the problem that built-in vibration brings, thereby can guarantee the saturating effect of sample wind, improves humidity and controls quality, greatly promotes the efficiency that humidity is controlled.
In the present embodiment, blower fan 2 can adopt air exhauster or fan blower according to actual needs.On dividing plate 3, be placed with a coal sample dish 5 that is used for above splendid attire coal sample 11, coal sample 11 paves uniformly in coal sample dish 5.Referring to Fig. 3～Fig. 7, the bottom of coal sample dish 5 offers more than one air vent 51, and hot-air flow passes from air vent 51, sees through uniformly coal sample 11, and coal sample 11 is carried out to dehumidification operation.The below of coal sample dish 5 is provided with for collecting the coal sample holder 7 of sample.
In the present embodiment, the side in casing 1 forms return air channel 8, and one end of return air channel 8 is communicated with the top chamber of casing 1, and the other end is communicated with to form circulation air path with the bottom chamber of casing 1, and gas humidity controller 6 is installed in return air channel 8.Humidity controller 6 can adopt exsiccator, humidifier or other forms according to actual needs, be used for air-flow to carry out humidity regulation control, and the gas through humidity regulation is fully seen through to sample, finally reach the object that regulates humidity of materials by controlling ambient humidity.The air-flow of take is example (can certainly from top to bottom) from the bottom to top, the thermal current that is arranged in casing 1 bottom under the effect of blower fan 2 up motion penetrate the coal sample 11 of coal sample dish 5, complete humidity regulation.Meanwhile, the air-flow that is positioned at casing 1 top cavity enters again return air channel 8, and after humidity controller 6, re-using is admitted to again in the cavity of casing 1 bottom after processing.Be appreciated that in return air channel 8, in order to improve the flow velocity of air-flow, can also increase again more than one pressure fan.
As preferred embodiment, temperature controller (not shown) can also be further installed in return air channel 8, temperature controller can be selected well heater, condenser or other forms, be used for that air-flow is carried out to temperature and regulate control, and will fully see through material through thermoregulator gas, finally reach by controlling intake air temperature and regulate the object that realizes temperature of charge adjusting.This is that the saturating efficiency of wind due to the gas temperature/humidity by material and material has a direct impact, but different material characteristics is different, to the susceptibility of temperature, different to the ability that absorbs water/anhydrate, therefore for guaranteeing that the characteristic of material does not change and the saturating efficiency of wind is unaffected again, need to be best of breed for different material gas temperatures and humidity regulation, to realize the saturating efficiency of best wind of material.
Dehumidification (diminishing) process is actually a mass transport process, will the moisture in material progressively be taken away by mobile air, and the moisture of material just can gradually reduce.Diminishing process is divided into two stages, and first stage moisture will change steam state into by liquid state from material surface; Second stage is that the steam that is evaporated to steam state by material surface wants molten in the air on material surface, by the air flowing, is taken away.This two stages all with the temperature correlation of material periphery, the water yield that the evaporation of material surface moisture and ambient air institute can molten suctions follows temperature to have functional relation, temperature is higher, velocity of evaporation is faster, the water yield of the solvable suction of a certain amount of air is also larger.But temperature height can affect the physics and chemistry characteristic of coal sample to a certain extent, for example, the international standard of coal sample regulation temperature now can not be higher than 40 ℃, and national Specification is 50 ℃.Therefore, the dehumidification method that the utility model adopts hot blast to penetrate, is that efficiency can improve several times to decades of times in order effectively to increase the evaporation surface of material.Meanwhile, in order to guarantee that air-flow can take away part coal sample 11 in dehumidification process, so the utility model is further provided with for collecting the coal sample holder 7 of sample below coal sample dish 5, to guarantee the integrality of coal sample 11, improves the accuracy of sample preparation.
In the present embodiment, be provided with for detecting the wind gage 9 of hot blast flow velocity in return air channel 8, controller 4 is connected with blower fan 2 by a frequency converter 10.For example, while adopting the saturating technology of wind to carry out dehumidification processing to coal sample 11, in the early stage, because coal sample 11 moisture are high, gas penetration potential is not strong, and dry gas stream speed is lower than pre-set velocity, thereby controller 4 gathers the wind velocity signal of wind gage 9 and relatively by frequency converter 10, adjusts blower fan 2 rotating speeds with default wind speed, make inlet velocity consistent with default wind speed, to accelerate dehumidification speed.Along with the moisture of sample is constantly separated, the gas penetration potential of sample strengthens, and dry gas stream wind speed increases gradually.Controller 4 will constantly be adjusted fan speed according to the signal intensity of wind gage 9, and wind speed is reduced gradually, thereby has avoided coal sample 11 to be too dried, to reach energy-conservation effect.
In the present embodiment, coal sample holder 7 comprises from top to bottom connected successively support portion 71, ventilation unit 72 and receives sample portion 73, support portion 71 is supported on dividing plate 3, between support portion 71 and dividing plate 3, be provided with sealing gasket 12, coal sample dish 5 is positioned over the top of support portion 71, and guarantee that coal sample dish 5 and the contact site of support portion 71 seal completely, receive the below that sample portion 73 is positioned at support portion 71.That is, the side of coal sample dish 5 guarantees sealing.If the void ratio of the side of coal sample dish 5 (being periphery) is larger, just may make most of air flow direction dish periphery and not can from dish streams mistake.For the coal sample 11 that thermal current is flowed through in coal sample dish 5 to greatest extent, it is better that the side of coal sample dish 5 in fact more seals.Can abstractively the periphery of coal sample dish 5 be likened into two passes with middle part air vent 51, hot blast Yao Congnatiao walks in road, the resistance little (being also windage) in Yao Kannatiao road.
As shown in Figure 8, in another embodiment, can also be according to actual needs, coal sample holder 7 and coal sample dish 5 is one-body molded.
Below be only preferred implementation of the present utility model, protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, the some improvements and modifications not departing under the utility model principle prerequisite, should be considered as protection domain of the present utility model.
Claims (6)
1. an external blower type coal sample dehumidifying device, comprise casing (1), controller (4) and be installed in the dividing plate (3) in casing (1), described dividing plate (3) is separated into two chambers by casing (1), on described dividing plate (3), be placed with a coal sample dish (5) that is used for above splendid attire coal sample, the bottom of described coal sample dish (5) offers more than one air vent (51), it is characterized in that: outer setting one blower fan (2) of described casing (1), described blower fan (2) is communicated with the inner chamber of casing (1).
2. external blower type coal sample dehumidifying device according to claim 1, is characterized in that: the below of described coal sample dish (5) is provided with for collecting the coal sample holder (7) of sample.
3. external blower type coal sample dehumidifying device according to claim 1, it is characterized in that: the side in described casing (1) forms return air channel (8), one end of described return air channel (8) is communicated with the top chamber of casing (1), the other end is communicated with to form circulation air path with the bottom chamber of casing (1), and gas humidity controller (6) and/or temperature controller are installed in described return air channel (8).
4. external blower type coal sample dehumidifying device according to claim 3, it is characterized in that: the wind gage (9) for detecting hot blast flow velocity is installed in described return air channel (8), and described controller (4) is connected with blower fan (2) by a frequency converter (10); Described controller (4) according to wind gage (9) thus the wind velocity signal gathering with default wind speed relatively by the rotating speed of frequency converter (10) adjustment blower fan (2).
5. external blower type coal sample dehumidifying device according to claim 2, it is characterized in that: described coal sample holder (7) comprises from top to bottom connected successively support portion (71), ventilation unit (72) and receives sample portion (73), described support portion (71) is supported on dividing plate (3), described coal sample dish (5) is positioned over the top of support portion (71), and described receipts sample portion (73) is positioned at the below of support portion (71).
6. external blower type coal sample dehumidifying device according to claim 5, is characterized in that: described coal sample holder (7) is one-body molded with coal sample dish (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320850890.6U CN203837983U (en) | 2013-12-23 | 2013-12-23 | External-fan type coal sample dehumidifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320850890.6U CN203837983U (en) | 2013-12-23 | 2013-12-23 | External-fan type coal sample dehumidifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837983U true CN203837983U (en) | 2014-09-17 |
Family
ID=51515807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320850890.6U Withdrawn - After Issue CN203837983U (en) | 2013-12-23 | 2013-12-23 | External-fan type coal sample dehumidifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674656A (en) * | 2013-12-23 | 2014-03-26 | 湖南三德科技股份有限公司 | External-fan type coal sample dehumidifying device |
-
2013
- 2013-12-23 CN CN201320850890.6U patent/CN203837983U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674656A (en) * | 2013-12-23 | 2014-03-26 | 湖南三德科技股份有限公司 | External-fan type coal sample dehumidifying device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102937539B (en) | Hot blast penetrates internal-circulation type coal sample dehumidifying device | |
| CN103207109A (en) | Device and method for performing numerically-controlled dehumidification temperature regulation on air particulate matter concentration monitoring sample collection | |
| CN101349499A (en) | Method for controlling dehumidification rate and heat pump drier for implementing dehumidification rate control | |
| CN106594935A (en) | Dehumidifier | |
| CN102954672A (en) | Internal recycle moist-air latent heat recovering type heat pump drying device | |
| CN202660862U (en) | Hot air penetration outer circulation type coal sample dehumidifying device | |
| CN202661310U (en) | Hot air penetrating circulating type coal sample dehumidifying device with automatic sample sending and taking function | |
| CN102338434A (en) | Air conditioner capable of independently controlling temperature and humidity | |
| CN203425833U (en) | Test box with high utilization rate in upper feeding and lower discharging mode | |
| CN204227863U (en) | The saturating drying equipment of upset blanking type wind | |
| CN103674656A (en) | External-fan type coal sample dehumidifying device | |
| CN203837983U (en) | External-fan type coal sample dehumidifying device | |
| CN203534081U (en) | Blowing hot air penetrating dry box | |
| CN206338896U (en) | Dehumidifier | |
| CN203750550U (en) | High-low-temperature thermal-humidity test box with light absorption device | |
| CN102937370B (en) | Hot blast penetrates outer circulation type coal sample dehumidifying device | |
| CN202661309U (en) | Hot-air passing internal circulation type coal sample dehumidification device | |
| CN203355743U (en) | High-usage test chamber with lateral air inlet and outlet mode | |
| CN102937540B (en) | The hot blast of sampling can be automatically sent to penetrate internal-circulation type coal sample dehumidifying device | |
| CN202254658U (en) | Internal circulation humid air latent heat recovery type heat pump drying device | |
| CN205543888U (en) | Automatic cooling removes damp electric box | |
| CN202631334U (en) | Through-air externally-circulating type coal sample dehumidifying device capable of feeding and sampling automatically | |
| CN203464646U (en) | Air-volume flow equalizing device for hot-air transmission type coal-sample dehumidifying equipment | |
| CN203672057U (en) | Ventilation drying box with auxiliary heating | |
| CN102944452B (en) | Hot air-penetration external circulating-type coal sample dehumidification device having automatic sample feeding/taking function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20171114 |