CN106289879B - Sampler for vertical mill powder concentrator - Google Patents
Sampler for vertical mill powder concentrator Download PDFInfo
- Publication number
- CN106289879B CN106289879B CN201610678089.6A CN201610678089A CN106289879B CN 106289879 B CN106289879 B CN 106289879B CN 201610678089 A CN201610678089 A CN 201610678089A CN 106289879 B CN106289879 B CN 106289879B
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- Prior art keywords
- collecting
- pipe
- end opening
- material collecting
- port
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention discloses a sampler for a vertical mill powder concentrator, which comprises more than one material collecting port, more than one material collecting pipe, a material collecting main pipe and a sampling tank; the material collecting opening is in a trapezoid table shape, the length of an upper end opening of the material collecting opening is larger than that of a lower end opening, and the width of the upper end opening is smaller than that of the lower end opening; the upper end opening of the material collecting port is positioned at the lower part of the fixed blade in the sampler, the lower end opening is communicated with the material collecting pipe, and one material collecting port is correspondingly connected with one material collecting pipe; one end of the collecting pipe is connected with a corresponding collecting port, and the other end of the collecting pipe is communicated with a collecting main pipe; the material collecting pipe and the material collecting port are arranged in the powder selecting machine; one end of the collecting main pipe is connected with each collecting pipe, and the other end of the collecting main pipe extends out of the powder concentrator and is connected with a sampling tank arranged outside the powder concentrator; and the included angle between the collecting pipe and the horizontal direction and the included angle between the collecting main pipe and the horizontal direction are larger than the repose angle of the material to be collected. The invention can realize on-line and continuous sampling of powder and effectively ensure the powder selecting quality of the powder selecting machine.
Description
Technical Field
The invention relates to a sampler for a vertical mill powder concentrator.
Background
In modern cement factories, the vertical roller mill integrates grinding, homogenizing, drying, powder selecting and conveying functions and is more and more widely used for grinding cement and raw materials thereof. In the prior art, during performance evaluation of a vertical mill and a powder concentrator thereof, particle characteristics of a material fed and discharged from the vertical mill and a material circulated in the vertical mill need to be analyzed. The feeding and discharging sampling of the vertical mill is convenient: a sample of the ground material can be taken from the feeding belt, and a sample of the ground product can be taken from a finished product collecting device of the vertical mill; however, in the internal circulation material of the vertical mill, real-time online sampling cannot be achieved due to the sealing property and the working state of the vertical mill as negative pressure.
Disclosure of Invention
The invention aims to solve the technical problem that the internal circulation materials cannot be sampled because the sealing performance and the working state of the vertical mill are negative pressure.
In order to solve the technical problems, the invention provides a sampler for a vertical mill powder concentrator, which comprises more than one material collecting port, more than one material collecting pipe, a material collecting main pipe and a sampling tank; the material collecting opening is in a trapezoid table shape, the length of an upper end opening of the material collecting opening is larger than that of a lower end opening, and the width of the upper end opening is smaller than that of the lower end opening; the upper end opening of the material collecting port is positioned at the lower part of the fixed blade in the sampler, the lower end opening is communicated with the material collecting pipe, and one material collecting port is correspondingly connected with one material collecting pipe; one end of the collecting pipe is connected with a corresponding collecting port, and the other end of the collecting pipe is communicated with a collecting main pipe; the material collecting pipe and the material collecting port are arranged in the powder selecting machine; one end of the collecting main pipe is connected with each collecting pipe, and the other end of the collecting main pipe extends out of the powder concentrator and is connected with a sampling tank arranged outside the powder concentrator; and the included angle between the collecting pipe and the horizontal direction and the included angle between the collecting main pipe and the horizontal direction are larger than the repose angle of the material to be collected.
Because the upper end opening of the material collecting port is long in length and short in width, a long and narrow channel is formed at the joint, when the sampling tank is not installed, the atmosphere enters the sampler from the material collecting main pipe under the action of negative pressure in the mill, a larger flow velocity blowing towards the inside of the powder selecting machine can be formed through the long and narrow channel, resistance is formed, the material is prevented from falling, the material collecting port is blown dry, and sundries are not left; when the sampling tank is connected, the atmospheric flow is stopped, the resistance is not generated at the material collecting port, the newly generated powder in the powder selecting machine falls into the sampling tank through a channel formed by the material collecting pipe and the material collecting main pipe under the action of dead weight, and the sampling work is completed, wherein the included angle between the material collecting pipe and the horizontal direction and the included angle between the material collecting main pipe and the horizontal direction are larger than the repose angle of the material to be collected, so that the material can be smoothly discharged to the outside of the vertical mill through each material collecting pipe and is collected by the sampling tank, the repose angle is determined by the type of the powder, the repose angle of the powder selecting machine is the repose angle of the cement, and the repose angle of the powder selecting machine is the repose angle of the coal powder. Besides the function of connecting the material collecting port and the material collecting main pipe, the material collecting pipe has the effect of supporting the material collecting port, and the material collecting port can be ensured to always open the mouth to align with the powder which flies down from the rotating fixed blades due to the existence of the material collecting pipe.
Furthermore, the material collecting ports are uniformly distributed along the circumferential direction of the side wall of the sampler. The sampling on the circumference is realized, and the accuracy of sample sampling can be ensured.
Further, the aggregate header pipe is in threaded connection with the sampling tank. The threaded connection is convenient to disassemble and assemble and convenient to maintain
The invention has the beneficial effects that:
(1) The sampling of the circulating materials in the mill can be conveniently realized;
(2) The sample can be taken on line;
(3) The working characteristics of the vertical mill and the powder selecting machine thereof are easy to evaluate, and the operating parameters of the vertical mill can be adjusted according to the grinding working condition in the operation period
(4) The comprehensive grinding efficiency of the vertical mill can be improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a cross-sectional view of fig. 1A-A of the present invention.
Fig. 3 is a schematic view of the installation of the present invention.
Detailed Description
As shown in fig. 1, the invention comprises more than one collecting port 1, more than one collecting pipe 2, a collecting main pipe 3 and a sampling tank 4; the upper end opening of the material collecting port 1 is positioned at the lower part of the fixed blade in the sampler, the lower end opening is communicated with the material collecting pipe 2, and one material collecting port 1 is correspondingly connected with one material collecting pipe 2; one end of the collecting pipe 2 is connected with a corresponding collecting port 1, and the other ends of the collecting pipe 2 are communicated with a collecting main pipe 3; the bottom end of the aggregate main pipe 3 is connected with a sampling tank 4; the included angle between the collecting pipe 2 and the horizontal direction and the included angle between the collecting main pipe 3 and the horizontal direction are larger than the repose angle of the materials to be collected. The collecting main pipe 3 and the sampling tank 4 are connected through a threaded connecting pipe 5.
As shown in fig. 1-2, the material collecting port 1 is in a trapezoid table shape, the length of an upper end opening of the material collecting port 1 is larger than that of a lower end opening, and the width of the upper end opening is smaller than that of the lower end opening.
As shown in fig. 3, the material collecting pipe 2 and the material collecting port 1 are arranged in the powder concentrator; one end of the collecting main pipe 3 is connected with each collecting pipe 2, and the other end extends out of the powder concentrator and is connected with a sampling tank 4 arranged outside the powder concentrator.
The working process of the invention is as follows:
in the invention, the material collecting port 1 is used for collecting coarse powder screened from the fixed blades, the upper end opening of the material collecting port is upwards opened, and the coarse powder to be collected falls from the blades, enters the material collecting port 1 through the upper end opening and falls into the material collecting pipe 2 through the lower end opening.
When the vertical mill is produced, the inside of the mill is in a negative pressure state, a plug for blocking a threaded connecting pipe is opened, the materials of the sampling tank 4 are different according to the different materials in the mill, the sampling tank 4 is used for collecting residual materials in the collecting pipe 2 falling under the action of gravity, when the materials in the collecting pipe 2 are reduced to be the same as the gases in the mill, as the upper part of the collecting port 1 is a long and narrow passage, when the sampling tank 4 is not installed, the atmosphere outside the mill enters the mill under the driving of pressure difference, a flow speed is formed, when the flowing gas passes through the collecting port 1, the flowing gas forms resistance in the collecting port 1, at the moment, the materials from the fixed blades of the powder concentrator cannot pass through the collecting port 1, and only air in the sampler flows. The residual particles can be sampled after being cleaned, the sampling tank 4 is mounted on the threaded connecting pipe 5, at the moment, the sampler is isolated from the atmosphere, the resistance of the collecting port 1 disappears, the materials from the fixed blades of the powder concentrator pass through the collecting port 1, enter the sampling tank 4 under the action of gravity through each collecting pipe 2, the sampling tank 4 can be taken down after the preset sampling time is up, and the opening of the threaded connecting pipe 5 is plugged by a plug to finish sampling.
The invention has the beneficial effects that: the sampling of the circulating materials in the mill can be conveniently realized; the sample can be taken on line; the working characteristics of the vertical mill and the powder concentrator thereof are easy to evaluate, and the operating parameters of the vertical mill can be adjusted according to the grinding working conditions in the operation period; the comprehensive grinding efficiency of the vertical mill can be improved. Has certain market prospect and is worth popularizing.
Claims (3)
1. A sampler for vertical mill selection powder machine, its characterized in that: comprises more than one collecting port (1), more than one collecting pipe (2), a collecting main pipe (3) and a sampling tank (4);
the collecting opening (1) is in a trapezoid table shape, the length of an upper end opening of the collecting opening (1) is larger than that of a lower end opening, and the width of the upper end opening is smaller than that of the lower end opening; the upper end opening of the collecting port (1) is positioned at the lower part of the fixed blade in the sampler, the lower end opening is communicated with the collecting pipe (2), and one collecting port (1) is correspondingly connected with one collecting pipe (2);
one end of the collecting pipe (2) is connected with a corresponding collecting port (1), and the other ends of the collecting pipe are communicated with a collecting main pipe (3); the material collecting pipe (2) and the material collecting port (1) are arranged in the powder selecting machine;
one end of the collecting main pipe (3) is connected with each collecting pipe (2), and the other end extends out of the powder concentrator and is connected with a sampling tank (4) arranged outside the powder concentrator;
the included angle between the collecting pipe (2) and the horizontal direction and the included angle between the collecting main pipe (3) and the horizontal direction are larger than the repose angle of the material to be collected;
the working process of the invention is as follows:
the material collecting port (1) is used for collecting coarse powder screened from the fixed blades, an upper end opening of the material collecting port is upwards opened, and the coarse powder to be collected falls from the blades, enters the material collecting port (1) through the upper end opening and falls into the material collecting pipe (2) through a lower end opening;
when the vertical mill is produced, the inside of the mill is in a negative pressure state, a plug for blocking a threaded connecting pipe is opened, the materials of a sampling tank (4) used are different according to the different materials in the mill, the sampling tank (4) collects residual materials in a collecting pipe (2) which falls down under the action of gravity, when the materials in the collecting pipe (2) are reduced to be the same as the gases in the mill, as the upper part of the collecting port (1) is a long and narrow passage, when the sampling tank (4) is not installed, the air outside the mill enters the mill under the driving of pressure difference and forms a flow velocity, and when the air passes through the collecting port (1), the flowing gas forms resistance in the collecting port (1), and then the materials from fixed blades of a powder selecting machine cannot pass through the collecting port (1), and only air in the sampler flows;
the residual particles can be sampled after being cleaned, the sampling tank (4) is mounted on the threaded connecting pipe (5), at this time, the sampler is isolated from the atmosphere, the resistance of the collecting opening (1) disappears, the materials from the fixed blades of the powder concentrator pass through the collecting opening (1), enter the sampling tank (4) through each collecting pipe (2) under the action of gravity, after the preset sampling time is reached, the sampling tank (4) can be taken down, and the opening of the threaded connecting pipe (5) is blocked by the plug, so that the sampling is completed.
2. A sampler for a vertical mill powder concentrator as claimed in claim 1 wherein: the material collecting ports (1) are uniformly distributed along the circumferential direction of the side wall of the sampler.
3. A sampler for a vertical mill powder concentrator as claimed in claim 1 wherein: the collecting main pipe (3) is in threaded connection with the sampling tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610678089.6A CN106289879B (en) | 2016-08-17 | 2016-08-17 | Sampler for vertical mill powder concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610678089.6A CN106289879B (en) | 2016-08-17 | 2016-08-17 | Sampler for vertical mill powder concentrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106289879A CN106289879A (en) | 2017-01-04 |
| CN106289879B true CN106289879B (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610678089.6A Active CN106289879B (en) | 2016-08-17 | 2016-08-17 | Sampler for vertical mill powder concentrator |
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| Country | Link |
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| CN (1) | CN106289879B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108946026A (en) * | 2018-08-28 | 2018-12-07 | 河南省德耀节能科技股份有限公司 | Material-transporting system and its automatic sampling device |
| CN110308021A (en) * | 2019-08-06 | 2019-10-08 | 中材（天津）粉体技术装备有限公司 | A kind of roller mill separator efficiency test sampler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699251A (en) * | 2009-10-28 | 2010-04-28 | 张琳 | Powdery material sampling device |
| DE102010011724B3 (en) * | 2010-03-17 | 2011-02-17 | Glatt Systemtechnik Gmbh | Device for extracting e.g. pharmaceutical substance, from powder flow, has extraction pincer provided on container in resting position of slider or axially above sample cavity, where extraction pincer is connected with sample container |
| CN102519757A (en) * | 2011-11-28 | 2012-06-27 | 上海宝田新型建材有限公司 | Time-sharing automatic sampling device for powder production and control method |
| CN102607892A (en) * | 2012-02-24 | 2012-07-25 | 中国科学院亚热带农业生态研究所 | Method and device for collecting and measuring leakage water of large-scale rice field undisturbed soil column |
| CN104614293A (en) * | 2015-02-02 | 2015-05-13 | 响水中联水泥有限公司 | On-line cement particle size detection method and one-line cement particle size device |
| CN205941089U (en) * | 2016-08-17 | 2017-02-08 | 南京西普水泥工程集团有限公司 | A sampler for standing grind selection powder machine |
-
2016
- 2016-08-17 CN CN201610678089.6A patent/CN106289879B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699251A (en) * | 2009-10-28 | 2010-04-28 | 张琳 | Powdery material sampling device |
| DE102010011724B3 (en) * | 2010-03-17 | 2011-02-17 | Glatt Systemtechnik Gmbh | Device for extracting e.g. pharmaceutical substance, from powder flow, has extraction pincer provided on container in resting position of slider or axially above sample cavity, where extraction pincer is connected with sample container |
| CN102519757A (en) * | 2011-11-28 | 2012-06-27 | 上海宝田新型建材有限公司 | Time-sharing automatic sampling device for powder production and control method |
| CN102607892A (en) * | 2012-02-24 | 2012-07-25 | 中国科学院亚热带农业生态研究所 | Method and device for collecting and measuring leakage water of large-scale rice field undisturbed soil column |
| CN104614293A (en) * | 2015-02-02 | 2015-05-13 | 响水中联水泥有限公司 | On-line cement particle size detection method and one-line cement particle size device |
| CN205941089U (en) * | 2016-08-17 | 2017-02-08 | 南京西普水泥工程集团有限公司 | A sampler for standing grind selection powder machine |
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| Publication number | Publication date |
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| CN106289879A (en) | 2017-01-04 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230613 Address after: Building 3, No. 5 Hongguang Road, Lishui Economic Development Zone, Nanjing, Jiangsu Province, 211200 Applicant after: Nanjing Xipu International Engineering Co.,Ltd. Address before: 211200 No. 5 Hongguang East Road, Lishui Economic Development Zone, Nanjing City, Jiangsu Province Applicant before: NANJING C-HOPE CEMENT ENGINEERING GROUP Co.,Ltd. |
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| GR01 | Patent grant |