CN211668835U - Cement raw meal powder sampling device based on jet pump - Google Patents
Cement raw meal powder sampling device based on jet pump Download PDFInfo
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- CN211668835U CN211668835U CN201922433593.1U CN201922433593U CN211668835U CN 211668835 U CN211668835 U CN 211668835U CN 201922433593 U CN201922433593 U CN 201922433593U CN 211668835 U CN211668835 U CN 211668835U
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- 238000005070 sampling Methods 0.000 title claims abstract description 60
- 239000004568 cement Substances 0.000 title claims abstract description 43
- 239000000843 powder Substances 0.000 title claims abstract description 41
- 235000012054 meals Nutrition 0.000 title claims abstract description 32
- 239000000443 aerosol Substances 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000007664 blowing Methods 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000011002 quantification Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses a cement raw meal powder sampling device based on a jet pump, wherein a base is provided with a sample feeding channel, a sample discharging channel and a rotating cavity, a feed inlet is arranged above the sample feeding channel, the rotating cavity is intersected with the sample feeding channel and the sample discharging channel, and the sample discharging channel is communicated with a blow-off air flow; the rotating wheel is arranged in the rotating cavity, the rotating wheel rotates through the driving mechanism, at least one groove is formed in the outer wall of the rotating wheel, and the groove sequentially passes through the sample feeding channel and the sample discharging channel in the rotating process; the air suction port of the jet pump is connected with the sample outlet channel, and the air outlet of the jet pump is connected with a detection instrument; the cement raw meal powder falls into the groove from the feeding hole, is carried into the sample outlet channel by the rotating wheel, forms aerosol by blowing away airflow, and the aerosol is extracted by the jet pump and output. The device has the advantages of accurate sampling and quantification, uniformity, stability and high speed.
Description
Technical Field
The utility model belongs to powder sampling test field especially relates to a cement raw powder sampling device based on jet pump.
Background
In the cement production process, in order to control the product quality, the components of the cement raw meal powder need to be detected on line. The first step of the on-line detection link is to sample the raw cement powder on line and process the raw cement powder to meet the sampling conditions of the detection instrument. Meanwhile, the sampling process cannot affect the production. The composition of the cement raw meal determines that the detection of the sample can only be carried out by feeding a solid sample, but is difficult to adopt other modes.
The method is used for detecting the components of the cement raw materials on line, and the primary problem to be solved is to sample the cement raw material powder on line. The spiral sampler which is one of the commonly used online powder sampling modes at present has simple structure and convenient use; in addition, a negative pressure sampling mode is provided, which is convenient and direct, and has few intermediate links.
However, the spiral sampler is limited by the structure and influenced by the actual blanking state of the production line, and cannot accurately quantitatively and stably sample; the negative pressure sampling is directly related to the state of the production line, and the sampling cannot be ensured to be uniform and stable; these disadvantages are unacceptable in applications requiring precise detection, such as cement component detection.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the to-be-solved technical problem of the utility model is to provide a cement raw powder sampling device based on jet pump, the device sample ration is accurate, even stable and fast.
The technical scheme of the utility model is that:
a cement raw meal powder sampling device based on a jet pump comprises:
the sample injection device comprises a base, a sample injection channel, a sample outlet channel and a rotating cavity, wherein a feed inlet is arranged above the sample injection channel, the rotating cavity is intersected with the sample injection channel and the sample outlet channel, and the sample outlet channel is communicated with a blowing-off airflow;
the rotating wheel is arranged in the rotating cavity, the rotating wheel rotates through the driving mechanism, at least one groove is formed in the outer wall of the rotating wheel, and the groove sequentially passes through the sample feeding channel and the sample discharging channel in the rotating process;
the air suction port of the jet pump is connected with the sample outlet channel, and the air outlet of the jet pump is connected with a detection instrument;
and cement raw meal powder falls into the groove from the feed inlet, is carried into the sample outlet channel by the rotating wheel, forms aerosol by blowing air flow, and the aerosol is extracted by the jet pump and output.
According to the utility model relates to an embodiment, sampling channel with the appearance passageway is located respectively the ascending both sides of runner footpath, just sampling channel with the extending direction of appearance passageway is on a parallel with this of runner is radial, appearance passageway one end is sealed and other end opening, the induction port connect in the opening one end of appearance passageway.
According to the utility model discloses an embodiment, be equipped with on the base at least one with the air flue of appearance passageway intercommunication, just the air flue is located the side of appearance passageway, the air flue leads to blow away the air current.
According to the utility model discloses an embodiment, the air flue is three, and is three the air flue is followed it arranges in proper order to go out appearance passageway extending direction.
According to the utility model discloses an embodiment, the introduction channel lower extreme is equipped with the feed back mouth.
According to the utility model discloses an embodiment, the feed back mouth is equipped with the feed back and connects.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
(1) the utility model discloses an embodiment sets up base, runner, jet pump, is equipped with the recess on the runner, and cement raw meal powder falls into the recess and is taken a sample, only needs the size of adjustment recess or the rotational speed of runner can realize accurate ration, appropriate amount sample, and cement raw meal powder is blown off the air current and is blown off into the aerosol, makes the sample homogeneity unanimous, makes the sample more accurate and more representative; the aerosol is higher and very unstable because of the disturbance velocity of flow and the pressure that blows off the air current when the appearance passageway, draws the aerosol through the jet pump and makes the aerosol stabilize and get off, and the jet pump enables in the appearance passageway unstable, undulant big aerosol and stabilize, and does not receive the influence that blows off the air current and then keep taking a sample stably, only needs the operating time and the power of adjustment jet pump just to realize the ration sample, and the sample is very accurate, and jet pump sampling speed is fast.
(2) In an embodiment of the utility model, the sample inlet channel and the sample outlet channel are respectively positioned at two sides of the runner in the radial direction, namely are vertical channels, so that the cement raw meal powder can more smoothly and accurately fall into the groove; make the recess get into out appearance passageway back cement raw powder and can rely on gravity to drop, can not remain and make the sample more accurate in the recess, and drop the back and be blown away the air current and blow away promptly, blow away that the effect is better, the aerosol that obtains more even.
(3) The utility model discloses an embodiment is equipped with the air flue on the base, and locates out appearance passageway side for blow off the effect of blowing off of air current better, fast, aerosol is more even.
(4) The utility model discloses an embodiment air flue is three and arranges in proper order along appearance passageway extending direction for can blow off cement raw powder step by step repeatedly in proper order and become the aerosol, make the aerosol more even and prevent to blow off and incompletely influence the sample accuracy nature.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is a cross-sectional view of a cement raw meal powder sampling device based on a jet pump of the utility model;
FIG. 2 is a schematic view of a runner of a jet pump-based cement raw meal powder sampling device of the present invention;
fig. 3 is a partial schematic view of a cement raw meal powder sampling device based on a jet pump according to the present invention;
fig. 4 is a partial schematic view of a cement raw meal powder sampling device based on a jet pump of the present invention.
Description of reference numerals:
1: a base; 2: a sample introduction channel; 3: a sample outlet channel; 4: a feed inlet; 5: a rotating wheel; 6: a groove; 7: a jet pump; 8: an air outlet; 9: an air suction port; 10: a power air inlet; 11: a motor; 12: a coupling; 13: a feed back joint; 14: an airway; 15: a connecting disc; 16: a temperature detection device; 17: a heating device.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It is to be noted that the drawings are in a very simplified form and are not to be construed as precise ratios as are merely intended to facilitate and distinctly illustrate the embodiments of the present invention.
Referring to fig. 1, the utility model provides a cement raw meal powder sampling device based on jet pump, including base 1, runner 5, jet pump 7. The key points of the device are as follows: the rotating wheel 5 accurately quantifies, samples in time and in proper amount; processing the sample into uniform aerosol; the jet pump 7 is adopted to absorb fluctuation to stabilize the aerosol and sample by the jet pump, so that the accuracy and stability of integral sampling are realized, and the sampling speed is high.
Referring to fig. 1 to 4, a sample inlet channel 2, a sample outlet channel 3 and a rotary cavity are arranged in a base 1, a feed inlet 4 is arranged above the sample inlet channel 2, cement raw meal powder enters the sample inlet channel 2 from the feed inlet 4, the rotary cavity is intersected with the sample inlet channel 2 and the sample outlet channel 3, the sample inlet channel 2 is not intersected with the sample outlet channel 3, a blow-off airflow is communicated with the sample outlet channel 3, the blow-off airflow is a high-speed airflow and is used for blowing off the cement raw meal powder into aerosol, the higher the flow velocity of the blow-off airflow, the better the blow-off effect is, the more uniform the obtained aerosol is, the sample in the embodiment is cement raw meal powder, and other powder samples can; the rotating wheel 5 is arranged in the rotating cavity, the outer wall of the rotating wheel 5 is provided with at least one groove 6, the size of the groove 6 can be adjusted according to actual sampling amount, the groove 6 has a special shape corresponding to the rotating direction of the rotating wheel 5, samples with specific volumes can be filled, the samples cannot slide down, the groove 6 is used for sampling and conveying the samples, the samples fall into the groove 6 from the feeding hole 4, the groove 6 sequentially passes through the sample inlet channel 2 and the sample outlet channel 3 in the rotating process, the samples are also brought into the sample outlet channel 3 from the sample inlet channel 2 by the rotating wheel 5, aerosol is formed by blowing off air flow, aerosol is formed, the uniformity of the samples is consistent, and the sampling is more accurate and representative; the rest parts of the rotating wheel 5 except the groove 6 form a kinematic pair in precise fit with the base 1 and are sealed by a dustproof gasket, so that the sample inlet channel 2 and the sample outlet channel 3 are separated without mutual influence, and a sample does not drop in the groove 6 except the sample outlet channel 3; the rotating wheel 5 rotates through the driving mechanism, the driving mechanism is the motor 11 and the coupler 12, the motor 11 is connected with the base 1 through the connecting disc 15, the connecting disc 15 is hollow, the coupler 12 penetrates through the connecting disc 15 and is connected with the base 1 and the motor 11 in a shaft mode, the rotating speed of the motor 11 is controlled, the frequency of the groove 6 in the rotating wheel 5 filled with samples can be controlled, and therefore different sampling amounts are obtained.
Furthermore, the sample inlet channel 2 and the sample outlet channel 3 are respectively located on two radial sides of the rotating wheel 5, the extending directions of the sample inlet channel 2 and the sample outlet channel 3 are parallel to the radial direction of the rotating wheel 5, one end of the sample outlet channel 3 is closed, the other end of the sample outlet channel is open, and the air suction port 9 is connected to one end of the open end of the sample outlet channel 3. Specifically, the rotating shaft of the rotating wheel 5 is horizontal, the sample inlet channel 2 and the sample outlet channel 3 are respectively positioned on two sides of the rotating wheel 5 and are vertical channels, the sample inlet channel 2 penetrates from top to bottom, the lower end of the sample inlet channel is a feed back port, the feed back port is used for discharging redundant samples so that the samples are not accumulated, manual material discharging is not needed, sampling interruption is caused, the sampling interruption can cause a detection instrument to generate obvious fluctuation, detection is influenced, the samples can be further discharged back to the production line for recycling, and the feed back port is also provided with a feed back connector 13 for connecting with a pipeline which is discharged back to the production; the sample outlet channel 3 is a blind hole, the upper end of the sample outlet channel is closed, the lower end of the sample outlet channel is opened, and the sample inlet channel 2 is a vertical channel, so that a sample can smoothly and accurately fall into the groove 6 by means of gravity; the rotating shaft of the rotating wheel 5 is horizontally arranged, so that cement raw meal powder can fall by means of gravity after the groove 6 enters the sample outlet channel 3, the cement raw meal powder cannot remain in the groove 6, sampling is more accurate, the cement raw meal powder is blown away by blown-away airflow after falling, the blowing-away effect is better, the obtained aerosol is more uniform, the rotating direction of the rotating wheel 5 is preferably upward rotation in the sample inlet channel 2, when a sample falls in the groove 6, the groove 6 moves upward, even if the sample cannot fall again in the sample inlet channel 2, when the groove 6 rotates into the sample outlet channel 3, the groove 6 moves downward, the sample falls by means of gravity, and sampling is very accurate; 3 passageways of appearance of going out also make aerosol can get into the jet pump better for vertical passageway, and 3 upper ends of appearance passageways seal, make aerosol can not spill over to the outside.
Referring to fig. 1, at least one air passage 14 communicated with the sample outlet channel 3 is arranged on the base 1, the air passage 14 is located at the side end of the sample outlet channel 3, the air passage 14 is communicated with the blowing air flow, and the air passage 14 is aligned with the groove 6 of the rotating wheel 5, so that the blowing air flow can better blow away the sample, the sample has no residue, the accuracy is enhanced, and the aerosol is more uniform; the air passages 14 are preferably three, and the three air passages 14 are sequentially arranged along the extending direction, namely the vertical direction, of the sampling passage 3, so that the cement raw meal powder can be blown off into aerosol step by step repeatedly, the aerosol is more uniform, and the sampling accuracy is prevented from being influenced by incomplete blowing. The upper end of the sampling channel 3 is closed, so that aerosol can not overflow to the outside, and sampling is faster and more accurate.
Referring to fig. 1, an air suction port of a jet pump 7 is connected with a lower end opening of a sample outlet channel, the jet pump 7 is a pump based on a venturi effect, and is the prior art, the jet pump 7 is of a T-shaped structure and is provided with three ports, wherein two straight ports are an air suction port 9 and an air outlet port 8, and a port at the third side end is a power air inlet port 10 through which power airflow is introduced; the air outlet 8 of the jet pump 7 is connected with a detection instrument for conveying samples to the detection instrument for detection, the detection instrument is a spectrometer, the air outlet 8 of the jet pump can also be simultaneously connected with the detection instrument and a pipeline leading to a production line, a part of aerosol is collected and conveyed to the detection instrument, and the surplus aerosol is discharged back to the production line; aerosol is higher and very unstable because of the disturbance velocity of flow and the pressure that blows off the air current when appearance passageway 3, it makes aerosol stabilize to get off to draw the aerosol through jet pump 7, jet pump 7 enables unstability in appearance passageway 3, the big aerosol of fluctuation is stabilized to get off, and not influenced by the air current that blows off and then keep taking a sample stably, only need the operating time and the power of adjusting jet pump 7 to realize the ration sample, the sample is very accurate, concrete power air current size that can adjust power air inlet 10 is in order to adjust the sample volume, and jet pump 7 sample rate is fast, relative sample concentration is low.
Referring to fig. 1, a temperature detecting device 16 and a heating device 17 are arranged on a base 1, the heating device 17 is used for heating the whole device to prevent cement raw meal powder samples from caking and influencing sampling, particularly cement raw meal powder is easy to cake when humidity is high, and the temperature detecting device 16 is used for detecting temperature to control the switch of the heating device 17.
The sampling structure of the utility model is miniaturized, and single high-precision sampling is realized; different sampling amounts can be obtained by only adjusting the size and the shape of the groove 6 on the rotating wheel 5 and the rotating speed of the rotating wheel 5 through the sampling of the rotating wheel 5, and the sampling amount and the sampling frequency are controllable; blowing the obtained sample by using blowing air flow to form aerosol, thereby obtaining a sample with consistent uniformity; the aerosol is pumped by the jet pump 7 to be conveyed to detection, so that the sampling is accurate and stable.
Aiming at different samples or using occasions, different sampling amounts can be obtained by adjusting the size and the shape of the groove 6 on the rotating wheel 5, different sampling amounts are obtained by adjusting the pressure and the flow of the blowing air flow and the working time and the power of the jet pump 7, the sampling device is suitable for different detection instruments by using the appropriate sampling amount, and the sampling device has high sampling speed and low concentration.
The working process of the present invention is further explained as follows:
firstly, putting a cement raw powder sample into a feeding hole 4, enabling the sample to fall into a groove 6 on a rotating wheel 5 after entering a sample inlet channel 2, enabling the rotating wheel 5 to rotate to drive the groove 6 to enter a sample outlet channel 3, enabling the sample on the groove 6 to be brought into the sample outlet channel 3, enabling blown-off air flow to enter the sample outlet channel 3 through an air passage 14 to blow off the sample into aerosol, and finally extracting the aerosol through a jet pump 7 to be conveyed to an instrument to finish sampling.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (6)
1. The utility model provides a cement raw meal powder sampling device based on jet pump which characterized in that includes:
the sample injection device comprises a base, a sample injection channel, a sample outlet channel and a rotating cavity, wherein a feed inlet is arranged above the sample injection channel, the rotating cavity is communicated with the sample injection channel and the sample outlet channel in an intersecting manner, and the sample outlet channel is communicated with a blowing-off airflow;
the rotating wheel is arranged in the rotating cavity and driven by a driving mechanism, at least one groove is formed in the outer wall of the rotating wheel, and the groove sequentially passes through the sample feeding channel and the sample discharging channel in the rotating process;
the air suction port of the jet pump is connected with the sample outlet channel, and the air outlet of the jet pump is connected with a detection instrument;
and cement raw meal powder falls into the groove from the feed inlet, is carried into the sample outlet channel by the rotating wheel, forms aerosol by blowing air flow, and the aerosol is extracted by the jet pump and output.
2. The jet pump-based cement raw meal powder sampling device according to claim 1, wherein the sample introduction channel and the sample discharge channel are respectively located on both sides of the runner in the radial direction, and the extending direction of the sample introduction channel and the sample discharge channel is parallel to the radial direction of the runner, one end of the sample discharge channel is closed and the other end is open, and the air suction port is connected to one end of the open end of the sample discharge channel.
3. The jet pump-based cement raw meal powder sampling device according to claim 2, wherein at least one air passage communicating with the sampling passage is provided on the base, and the air passage is located at a side end of the sampling passage, and the air passage is communicated with the blowing air flow.
4. The jet pump-based cement raw meal powder sampling device according to claim 3, wherein the number of the air passages is three, and the three air passages are arranged in series along the extending direction of the sampling passage.
5. The jet pump-based cement raw meal powder sampling device as set forth in claim 2, wherein the lower end of the sample introduction passage is provided with a feed back port.
6. The jet pump-based cement raw meal powder sampling device as set forth in claim 5, wherein said feed back port is provided with a feed back joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922433593.1U CN211668835U (en) | 2019-12-30 | 2019-12-30 | Cement raw meal powder sampling device based on jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922433593.1U CN211668835U (en) | 2019-12-30 | 2019-12-30 | Cement raw meal powder sampling device based on jet pump |
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| Publication Number | Publication Date |
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| CN211668835U true CN211668835U (en) | 2020-10-13 |
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| CN201922433593.1U Active CN211668835U (en) | 2019-12-30 | 2019-12-30 | Cement raw meal powder sampling device based on jet pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504384A (en) * | 2021-08-16 | 2021-10-15 | 湖南省计量检测研究院 | Sealed sample introduction device of element analyzer |
| CN113740106A (en) * | 2021-08-09 | 2021-12-03 | 合肥金星机电科技发展有限公司 | Device and method for online sample preparation detection of powder material |
-
2019
- 2019-12-30 CN CN201922433593.1U patent/CN211668835U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740106A (en) * | 2021-08-09 | 2021-12-03 | 合肥金星机电科技发展有限公司 | Device and method for online sample preparation detection of powder material |
| CN113504384A (en) * | 2021-08-16 | 2021-10-15 | 湖南省计量检测研究院 | Sealed sample introduction device of element analyzer |
| CN113504384B (en) * | 2021-08-16 | 2023-06-09 | 湖南省计量检测研究院 | Sealed sample injection device of element analyzer |
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Address after: 310053 Room 301, floor 3, building 3, No. 611, Dongguan Road, Binjiang District, Hangzhou, Zhejiang Province Patentee after: Zhongkong Quanshi Technology (Hangzhou) Co.,Ltd. Address before: 310053 Room B3155, 3rd floor, 368 Liuhe Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG TRACETECH TECHNOLOGY CO.,LTD. |