CN204154557U - Upwards dial cut coal sample division device - Google Patents
Upwards dial cut coal sample division device Download PDFInfo
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- CN204154557U CN204154557U CN201420576715.7U CN201420576715U CN204154557U CN 204154557 U CN204154557 U CN 204154557U CN 201420576715 U CN201420576715 U CN 201420576715U CN 204154557 U CN204154557 U CN 204154557U
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- reduction device
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Abstract
The utility model discloses one and upwards dial cut coal sample division device, comprise reduction device body, described reduction device body comprises outside framework, taper reshaper, division plate and bifurcated baffle plate; Outside framework top has sample inlets, described taper reshaper top shape and sample inlets mating shapes, the topside area of taper reshaper is greater than bottom area, described division plate lower end is fixed on outside framework by rotating mechanism, is positioned at above bifurcated baffle plate, becomes two sample outlets bottom described outside framework by bifurcated barrier partitions.The sample that the utility model division goes out meets Standard, without any leak point in division process, because division plate upwards dials coal cutting sample, coal stream is very short very little with contact area for duration of contact therein, coal sample after division is representative, solve moisture loss, size segregation, easily cause the problems such as airborne dust, division precision comparatively existing equipment improves a lot.
Description
Technical field
The invention belongs to coal sample division technical field, be specifically related to a kind of equipment coal sample being carried out to division process in coal sample making course.
Background technology
The quality of analytical industry coal quality, need through " collection, sample preparation, chemical examination " three processes of coal; The process of sample preparation chemically examines gathering the coal sample come the sample requiring to be made into certain specification according to GB.In sample making course, need to carry out division process (division is the process leaving and taking representational low-volume samples from the sample of large quantity in proportion) to coal sample, and this step adopts mechanical reduction device to realize usually.
The principle of work of machinery reduction device is: from sample, take out a part or some parts in the mode of cutting sample.It can reduce the bias caused by artificial means.GB has regulation to " mechanical division method ", " cutter and cutting sample quality ", " cutting interval ", " cutting times ", the minimum mass of sample " after the division " etc.; Examination " reduction device " final quality is the requirement whether sample after seeing its division meets above-mentioned " GB ".
Domesticly at present to occur various forms of " reduction device ", but its division effect is all undesirable: 1. " rotary-type reduction device ": Fig. 1 is rotary conic reduction device schematic diagram, its principle of work is that coal is wandered on a rotating cone, then receiver is entered by an adjustable opening with cover, rotating cone often rotates a circle, and collects a part of sample.The inclined tube infundibulate reduction device schematic diagram that Fig. 2 is, its principle of work is that coal flows to into tipping bucket and discharges from inclined tube, the orbit rotating inclined tube outlet has one or more fixing cutter, and inclined tube outlet often through cutter once, namely intercepts one " cutting sample ".That taper or inclined tube infundibulate all also exist same problem, its physical construction and control relative complex, division ratio range of adjustment little (<50%), sample accommodation is little, thus the weight range of sample is limited to, flow through the impact of path length by cutting speed and sample, easily cause moisture loss.2. " cutting grooved reduction device ", as shown in Figure 3, its principle of work is that cutting groove intercepts a part of sample by coal stream tunneling boring from coal stream, the coal that cutter does not intercept flows through a hang plate eliminating and discards, this reduction device because of receiving hopper be motion cannot be hermetically sealed, splicing and blanking easily produce Lou material and airborne dust, Gu it exists size segregation problem.3. Fig. 4 is fluting banding pattern reduction device schematic diagram, its principle of work is that an endless belt is equidistantly dispersed with some otch, flanged pin on groove, when belt rotate make groove by during feeder channel end opening and cut coal stream sampling, coal sample enters container through skewed slot, and the coal dropping on belt unslotted section flows out with belt and discards.Fig. 5 is chain bucket type reduction device schematic diagram, its principle of work be a chain type mechanically with some buckets, struggle against to equidistantly distribute and with the time cycle one-way movement pre-set, bucket cut dropping coal stream and extract sample, then coal sample is unloaded in upset.Fluting banding pattern reduction device is belt composition, and chain bucket type reduction device is that chain adds bucket structure, and volume is very huge, more not easily seals.In sum, in existing reduction device, there is above-mentioned variety of problems, have impact on by the bias of division sample, make the actual effect of finished industrial product and bad, usually can not meet Standard.
Summary of the invention
For solving the variety of problems existed in existing reduction device, the invention discloses the reduction device that a kind of physical construction is simple, realize hermetically sealed effect, its division precision and reliability improve all greatly.
In order to achieve the above object, the invention provides following technical scheme:
One upwards dials cut coal sample division device, comprises reduction device body, and described reduction device body comprises outside framework, taper reshaper, division plate and bifurcated baffle plate; Described frame roof has sample inlets, described taper reshaper is arranged on sample inlets place, described taper reshaper top shape and sample inlets mating shapes, the topside area of taper reshaper is greater than bottom area, described division plate is arranged on outside framework inside, division plate lower end is fixed on outside framework by rotating mechanism, is positioned at above bifurcated top board, becomes two sample outlets bottom described outside framework by bifurcated barrier partitions.
Further, described taper reshaper is removably mounted on reduction device body, is rectangle bottom taper reshaper.
Further, the angle between the long limit conical surface of described taper reshaper and surface level is more than or equal to 60 degree, and bond length is more than or equal to 3 times of the maximum particle diameter of the coal sample by centrum.
Further, described rotating mechanism comprises transmission shaft, is arranged on the bearing in outside framework and is arranged on the spacer of bearing outboard end.
Further, the amplitude of fluctuation of division plate is between the full swing amplitude and taper reshaper two side angle of division plate.
Further, in described reduction device body, rotating mechanism place is provided with air purge set.
Compared with prior art, tool of the present invention has the following advantages and beneficial effect:
The sample that division of the present invention goes out meets GB GB474-2008, GB/T19494.2-2004 and GB/T19494.3-2004 requirement, without any leak point in division process, because division plate upwards dials coal cutting sample, coal stream is very short very little with contact area for duration of contact therein, coal sample after division is representative, solve moisture loss, size segregation, easily cause the problems such as airborne dust, division precision comparatively existing equipment improves a lot.This reduction device can not affect division result because of cutting speed, after division completes, delay sample is few, operationally without airborne dust, the coal sample moisture loss that division goes out and bias all very little.And the division ratio setting range of this reduction device is very wide, can reach from 0 percent to absolutely covering comprehensively.In addition, this reduction device structure is simple, significantly reduces equipment volume, effectively reduces costs and simplify manufacturing process.
Accompanying drawing explanation
Fig. 1 is rotary conic reduction device structural representation;
Fig. 2 is for rotating inclined tube type reduction device structural representation;
Fig. 3 is cutting grooved reduction device structural representation;
Fig. 4 is fluting banding pattern reduction device structural representation;
Fig. 5 is chain bucket type reduction device structural representation;
Fig. 6 provided by the inventionly upwards dials cut coal sample division device dialling and cuts structural representation under division mode, and wherein (a) is reduction device front view, and (b) is reduction device side view, and (c) is reduction device stereographic map, and (d) is reduction device skeleton view;
Fig. 7 is that cut coal sample division device of upwards dialling provided by the invention is cutting the structural representation under division mode; Wherein (a) is reduction device front view, and (b) is reduction device side view, and (c) is reduction device stereographic map, and (d) is reduction device skeleton view;
Fig. 8 is that plate swings angle schematic diagram.
Reference numerals list:
1-division plate, 2-outside framework, 3-transmission shaft, 4-sample inlets, 5-sample outlet, 6-bearing, 7-spacer, 8-left baffle, 9-bifurcated baffle plate, 10-taper reshaper, 11-bearing installing plate, 12-rotating mechanism, the full swing amplitude of α-division plate, the angle between β-taper reshaper two side.
Embodiment
Below with reference to specific embodiment, technical scheme provided by the invention is described in detail, following embodiment should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.
Embodiment one:
Find by studying existing reduction device, coal sample after the division of national standard is met to obtain, need the minimizing that the surface of contact of the physical construction of reduction device inside and sample, duration of contact, contact velocity are tried one's best, and seek the inside of reduction device and outside real isolation (hermetically sealed).Therefore the present invention is from actual needs, devise a kind of novel reduction device, as shown in Figure 7, this reduction device comprises reduction device body, described reduction device body comprises outside framework 2, taper reshaper 10, division plate 1 and bifurcated baffle plate 9, wherein, housing 2 top has sample inlets 4, taper reshaper 10 is arranged on sample inlets 4 place, taper reshaper 10 is up big and down small truncated rectangular pyramids shape, namely the topside area of taper reshaper is greater than bottom area, (generally with taper reshaper 10 top shape and sample inlets 4 shape, consistent and taper reshaper top outer is fitted, sample inlets inwall top is good for its top shape and sample inlets 4 mating shapes, certain assemblage gap can be had) between taper reshaper 10 and sample inlets 4 inwall.It is inner that division plate 1 is arranged on outside framework 2, and described division plate 1 lower end is fixed on the bifurcation top of outside framework 2 by rotating mechanism 12.The top margin of division plate 1 is tip design, to be arranged on rotating mechanism 12 bottom division plate 1, rotating mechanism comprises transmission shaft 3, roller bearing 6 and the spacer 7 being arranged on bearing 6 outboard end, outside framework 2 comprises two pieces of lambdoid bearing installing plates 11 and both sides left baffle 8, bearing 6 is arranged in outside framework, specifically, roller bearing material tin bronze, shape is designed specifically to boss-shaped, axially vertically oppositely be arranged on two pieces of installing plates 11, with the step of transmission shaft, the O-ring seal precision-fit at spacer 7 and roller bearing two ends, complete motion and the sealing of rotating mechanism dynamic component.Be separated into two sample outlets 5 by bifurcated baffle plate 9 bottom described outside framework 2, these two sample outlet one are division sample outlet, and another is for abandoning sample outlet.
As shown in Figure 8, taper reshaper 10 plays water conservancy diversion shaping effect to the coal sample falling into sample inlets 4, the full swing amplitude of division plate 1 is α, angle between taper reshaper 10 two side is β, preferably, the amplitude of fluctuation θ of division plate 1 should be greater than β and be less than or equal to α, thus ensures that the coal sample fallen from taper reshaper all can be distributed by division plate 1.
This reduction device also can further in reduction device body rotating mechanism place install air purge set, the residual dust in post-purge rotating mechanism and division plate place can be completed in division, so not easily cause the cross pollution of sample, thus the bias that sample is produced at this one-phase is minimum.
In this reduction device outside framework 2, left baffle 8, lower forks baffle plate 9 and bearing installing plate 11 form the airtight cavity of reduction device, upper and lower gateway is by mounting flange fixing seal, the O-ring seal precision-fit at roller bearing two ends, form hermetically sealed reduction device thus, without any leak point in division process.Because division plate upwards dials coal cutting sample, coal stream is very short very little with contact area for duration of contact therein, and operationally without airborne dust, can not affect division result because of cutting speed, after division completes, delay sample is few.
The division plate 1 of this reduction device has two kinds of division modes: dial and cut division mode and cutting division mode.
Dial and cut mode:
Driving mechanism is utilized to drive transmission shaft 3 to make its positive and negative rotation; Transmission shaft 3 and the bearing 6 be fixed on outside framework 2 are slidably matched; Division plate swings back and forth, and driving mechanism can adopt the actuator of motor or self-actuated controller.The actuator driven transmission shaft of self-actuated controller makes it according to certain frequency positive and negative rotation; Division plate 1 swings back and forth the even coal stream that cutting sample inlets 4 falls, make it automatically to distribute coal sample to two sample outlets 5 in proportion, and the swing pulsewidth (namely controlling the residence time at the right and left when division plate swings) by controlling division plate 1 realizes the adjustment of different range division ratio at every turn, division ratio can reach (0-100) %, and the adjustment swinging pulsewidth realizes by driving mechanism matching computer control software design such as four volts of motors, cylinder, electric pushrods.
When the coal stream fallen is relatively uneven (as 100mm particle diameter or 13mm particle diameter sample), division mode should adopt to dial cuts mode; It is divided into some sections (hop count is by national regulations) by coal stream band, takes out a certain amount of coal sample in proportion and be mixed into required sample from every section.
Slit mode:
Division plate can controlled stop in certain position, be limited in the width resting on coal stream with division plate successive segmentation coal stream.When the coal stream fallen is relatively uniform (as carried out abundant mixed 13mm sample, 6mm sample or 3mm sample), division mode can adopt slit mode, and this mode can reduce to minimum moisture loss.
When using this reduction device, the coal flow shaping that top falls by taper reshaper 10 becomes band coal stream, then to be dialled in the ratio that self-actuated controller sets by division plate 1 and cut or be syncopated as required sample and send from one of them sample outlet 5; Another part is then sent from another sample outlet 5.
Embodiment two:
As the improvement of embodiment one, described taper reshaper 10 is removably mounted on reduction device body, the top of taper reshaper is square, bottom is rectangle, therefore there is bottom taper reshaper 10 long limit and minor face (angle between the symmetrical long limit conical surface and surface level is more than or equal to 60 degree, and bond length is more than or equal to 3 times of the maximum particle diameter of the coal sample by centrum).When long limit bottom taper reshaper 10 is parallel with rotating mechanism axial direction, when coal stream falls from taper reshaper 10, division plate does small size swing, reduction device cuts mode for dialling, as long as angle of oscillation θ, slightly larger than the angle between taper reshaper 10 two side (being now two long limits), realizes the segmentation division of coal stream.When minor face bottom centrum is parallel with the direction of axle, when coal stream falls from taper reshaper 10, division plate can controlled stop in certain position, the width that division plate present position should be less than coal stream is limited, the angle θ 1 that i.e. division plate and vertical plane are should be less than angle half between taper reshaper 10 two side (being now two minor faces), now reduction device is slit mode, realizes the successive segmentation of coal stream.Therefore, when needs carry out dial cut time, taper reshaper 10 can be installed growth limit parallel with the direction of axle (as shown in Figure 6), when needs carry out cutting, taper reshaper 10 can be installed growth limit vertical with the direction of axle (as shown in Figure 7).In this example, all the other technical characteristics are identical with embodiment one.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, also comprises the technical scheme be made up of above technical characteristic combination in any.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (6)
1. upwards dial a cut coal sample division device, comprise reduction device body, it is characterized in that: described reduction device body comprises outside framework (2), taper reshaper (10), division plate (1) and bifurcated baffle plate (9); Described outside framework (2) top has sample inlets (5), described taper reshaper (10) is arranged on sample inlets (5) place, taper reshaper (10) top shape and sample inlets (5) mating shapes, the topside area of taper reshaper (10) is greater than bottom area, it is inner that described division plate (1) is arranged on outside framework (2), division plate (1) lower end is fixed on outside framework by rotating mechanism (12), is positioned at bifurcated baffle plate (9) top, and described outside framework (2) bottom is separated into two sample outlets (5) by bifurcated baffle plate (9).
2. according to claim 1ly upwards dial cut coal sample division device, it is characterized in that: described taper reshaper (10) is removably mounted on reduction device body, taper reshaper (10) bottom is rectangle.
3. according to claim 2ly upwards dial cut coal sample division device, it is characterized in that: the angle between the long limit conical surface of described taper reshaper (10) and surface level is more than or equal to 60 degree, and bond length is more than or equal to 3 times of the maximum particle diameter of the coal sample by centrum.
4. according to upwards dialling cut coal sample division device in claims 1 to 3 described in any one, it is characterized in that: described rotating mechanism (12) comprises transmission shaft (3), be arranged on the bearing (6) in outside framework (2) and be arranged on the spacer (6) of bearing (6) outboard end.
5., according to upwards dialling cut coal sample division device in claims 1 to 3 described in any one, it is characterized in that: the amplitude of fluctuation of division plate (1) is between the full swing amplitude and taper reshaper two side angle of division plate (1).
6., according to upwards dialling cut coal sample division device in claims 1 to 3 described in any one, it is characterized in that: in described reduction device body, rotating mechanism (12) place is provided with air purge set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576715.7U CN204154557U (en) | 2014-10-08 | 2014-10-08 | Upwards dial cut coal sample division device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576715.7U CN204154557U (en) | 2014-10-08 | 2014-10-08 | Upwards dial cut coal sample division device |
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| Publication Number | Publication Date |
|---|---|
| CN204154557U true CN204154557U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420576715.7U Expired - Fee Related CN204154557U (en) | 2014-10-08 | 2014-10-08 | Upwards dial cut coal sample division device |
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| CN (1) | CN204154557U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215492A (en) * | 2014-10-08 | 2014-12-17 | 朱天一 | Upwards-dialing and cutting type coal sample division device and division methods |
| CN108375494A (en) * | 2018-04-08 | 2018-08-07 | 中山市宏唯自动化科技有限公司 | A kind of reciprocating swing reduction device |
| CN108459629A (en) * | 2017-02-22 | 2018-08-28 | 镇江市丰泰化验制样设备有限公司 | It is a kind of adjustable fixed than quantitative reduction device |
| CN109655314A (en) * | 2019-02-01 | 2019-04-19 | 中国神华能源股份有限公司 | Reduction device and raw coal sampling machine for scrapper conveyor |
-
2014
- 2014-10-08 CN CN201420576715.7U patent/CN204154557U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215492A (en) * | 2014-10-08 | 2014-12-17 | 朱天一 | Upwards-dialing and cutting type coal sample division device and division methods |
| CN108459629A (en) * | 2017-02-22 | 2018-08-28 | 镇江市丰泰化验制样设备有限公司 | It is a kind of adjustable fixed than quantitative reduction device |
| CN108375494A (en) * | 2018-04-08 | 2018-08-07 | 中山市宏唯自动化科技有限公司 | A kind of reciprocating swing reduction device |
| CN109655314A (en) * | 2019-02-01 | 2019-04-19 | 中国神华能源股份有限公司 | Reduction device and raw coal sampling machine for scrapper conveyor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20161008 |
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| CF01 | Termination of patent right due to non-payment of annual fee |