CN107314909B - Raw coal push-pull type coal hopper sampling device and coal storage system - Google Patents
Raw coal push-pull type coal hopper sampling device and coal storage system Download PDFInfo
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- CN107314909B CN107314909B CN201710364275.7A CN201710364275A CN107314909B CN 107314909 B CN107314909 B CN 107314909B CN 201710364275 A CN201710364275 A CN 201710364275A CN 107314909 B CN107314909 B CN 107314909B
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- 239000003245 coal Substances 0.000 title claims abstract description 149
- 238000005070 sampling Methods 0.000 title claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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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
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
-
- 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
-
- 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
- G01N2001/1006—Dispersed solids
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- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a raw coal push-pull type coal hopper sampling device and a coal storage system, which comprise a sampling channel arranged in the middle of a coal storage device, wherein the upper end surface and the lower end surface of the sampling channel are respectively provided with an upper sealing plate and a lower sealing plate, and a gap is arranged in the middle of the upper sealing plate, so that a coal sample can fall down; the guide rail is arranged between the upper sealing plate and the lower sealing plate, the sampling draw box is movably arranged on the guide rail and moves between the upper sealing plate and the lower sealing plate along the guide rail, and the falling coal sample is conveyed out of the sampling channel. The invention ensures that the raw coal can not be sprayed out of the sampling bag uncontrollably when the device is in an operation state, thereby greatly improving the working environment of sampling.
Description
Technical Field
The invention relates to a raw coal push-pull type coal hopper sampling device and a coal storage system.
Background
In the process of a power station boiler thermodynamic test, raw coal sampling is an important link, and real coal quality data can be provided for subsequent performance index calculation only by accurately sampling coal. In the performance test of the boiler, the requirements of national standard GB10184-2015 on fuel sampling are as follows: "samples should be taken from the flowing solids stream, and if there is more than one dosing port, samples should be taken at equal intervals from each dosing port. The current raw coal sampling positions mainly comprise two coal feeding belts and two coal feeding machines for taking coal. The optimal coal taking position is at a coal hopper of a coal feeder, as shown in figure 1, the existing coal taking measuring point is very simple and crude, and is usually that an opening is directly formed at the coal hopper, a coal outlet pipe is welded, and a flange or a ball valve is used as a switch.
In the actual sampling process, the current measuring point has the following problems:
for a measuring point sealed by a flange, the flange needs to be removed when coal is taken, but the raw coal is sprayed once the flange is removed due to positive pressure at the position, so that the flange is difficult to seal again, and the sprayed raw coal seriously influences the peripheral sanitary condition.
Secondly, for a coal taking measuring point sealed by a ball valve, the problem of pipe blockage is easy to occur due to large raw coal particles, and the situation that coal cannot be taken out frequently occurs.
Disclosure of Invention
The invention provides a raw coal push-pull type coal hopper sampling device and a coal storage system in order to solve the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a raw coal push-pull type coal hopper sampling device comprises a sampling channel arranged in the middle of a coal storage device, wherein an upper sealing plate and a lower sealing plate are respectively arranged on the upper end surface and the lower end surface of the sampling channel, and a notch is formed in the middle of the upper sealing plate, so that a coal sample can fall;
the coal sampling device is characterized in that a guide rail is arranged between the upper sealing plate and the lower sealing plate, a sampling draw box is movably arranged on the guide rail and moves between the upper sealing plate and the lower sealing plate along the guide rail, and a falling coal sample is conveyed out of the sampling channel.
Furthermore, the upper sealing plate and the lower sealing plate penetrate through the coal storage device.
Furthermore, the sampling draw box comprises a connecting rod, and two ends of the connecting rod are respectively provided with a box body.
Further, the length of the guide rail is larger than the diameter of the coal storage device at the joint of the coal storage device and the guide rail. The box that guarantees the sample draw box can be transported out the coal sample.
Furthermore, a handle or a pull handle is arranged on the outer side of the box body. So as to be conveniently pulled out.
Furthermore, the two ends of the lower sealing plate are provided with fixing pieces to fix the sampling container.
Furthermore, the two ends of the lower sealing plate are respectively provided with a sampling port, so that the coal sample falls.
Further, the length of the notch is smaller than that of the box body.
Further, the middle section of the guide rail is hollow.
Furthermore, the corresponding position of the lower sealing plate and the middle section of the guide rail is hollow.
The coal storage system comprises a coal dropping hopper, a coal feeder and the coal taking device, wherein the coal dropping hopper is arranged at the upper end of the coal feeder, the coal taking device is arranged in the middle of the coal dropping hopper, and the sampling amount is controlled by controlling the movement of a sampling draw box in a reciprocating manner.
Compared with the prior art, the invention has the beneficial effects that:
(1) the coal quality monitoring system can sample coal samples in real time, monitor coal quality in real time, ensure the coal quality and further ensure the power supply or heat supply quality;
(2) by the ingenious design of the upper and lower sealing plates, the coal taking process can be realized without raw coal injection, the blockage of a measuring point can be avoided, and the sanitation of the surrounding environment is not influenced;
(3) the raw coal at the coal hopper is manually sampled, the sampling device has strong operability and simple maintenance, and the problem of blockage of the sampling device is avoided;
(4) guarantee the device when operating condition, raw coal can not uncontrolled spout outside the sample bag, has improved the operational environment of sample greatly.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic diagram of a conventional sampling station;
FIG. 2 is a front view of the construction of the apparatus of the present invention;
FIG. 3 is a schematic view of the coal extraction draw box of the present invention;
fig. 4 is a schematic view of the guide rail of the present invention.
Fig. 5(a) -5 (c) are schematic views of the operation of the sampling device of the present invention.
Wherein: 1-1-a coal hopper of a coal feeder; 1-2-coal feeder; 1-3-raw coal sampling tube; 1-4-flange or ball valve; 1-the outer wall of the coal hopper; 2-upper sealing plate; 3-pulling a handle; 4-taking the coal basket hook; 5-taking coal and pulling a box; 6-a guide rail; 7-lower sealing baffle.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As introduced by the background art, in the prior art, raw coal injection is caused in the coal taking process, and the insufficient blockage of a measuring point occurs, so as to solve the technical problems, the application provides a raw coal push-pull type coal hopper sampling device which comprises a sampling channel arranged in the middle of a coal storage device, wherein the upper end surface and the lower end surface of the sampling channel are respectively provided with an upper sealing plate and a lower sealing plate, and a gap is arranged in the middle of the upper sealing plate, so that a coal sample can fall down;
the guide rail is arranged between the upper sealing baffle and the lower sealing baffle, the coal taking draw box is movably arranged on the guide rail and moves between the upper sealing baffle and the lower sealing baffle along the guide rail, so that the falling coal sample is conveyed out of the sampling channel.
The upper and lower sealing baffles penetrate through the coal storage device.
The coal taking draw box comprises a connecting rod, and two ends of the connecting rod are respectively provided with a box body.
The length of the guide rail is larger than the diameter of the coal storage device at the joint of the coal storage device and the guide rail. The coal sample can be transported out by the box body of the coal taking draw box.
The outer side of the box body is provided with a handle or a pull handle. So as to be conveniently pulled out.
The fixing parts are arranged at two ends of the lower sealing baffle plate to fix the sampling container. As shown in figure 2, the coal taking draw box is provided with a handle at the outer side and a coal taking basket hook below the guide rail for fixing a coal taking container.
The two ends of the lower sealing baffle are respectively provided with a sampling port so that the coal sample falls.
The length of the gap is less than that of the box body.
The middle section of the guide rail is hollow.
The corresponding positions of the lower sealing baffle and the middle section of the guide rail are hollow.
A coal storage system comprises a coal dropping hopper, a coal feeder and the coal taking device, wherein the coal dropping hopper is arranged at the upper end of the coal feeder, the coal taking device is arranged in the middle of the coal dropping hopper, and the sampling amount is controlled by controlling the movement of a coal taking draw box in a reciprocating mode.
Before the coal taking device works, the position of the coal taking draw box is shown in figure 5(a), and a coal taking container (such as a coal taking bag) is firstly placed at a corresponding position below the guide rail through a coal taking basket hook. And then pulling the coal taking draw box to the position shown in fig. 5(b), dropping the coal sample in the right coal taking draw box into the coal taking bag, pushing the coal taking draw box in the opposite direction to the position shown in fig. 5(c), dropping the coal sample in the left coal taking draw box into the coal taking bag, and repeating the steps until the required number of coal samples are obtained. The device is in a sealed state in the state shown in fig. 5(a), and coal and dust cannot leak.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (4)
1. The utility model provides a plug-type coal hopper sampling device that falls of raw coal, characterized by: the coal sample sampling device comprises a sampling channel arranged in the middle of a coal hopper, wherein an upper sealing plate and a lower sealing plate are respectively arranged on the upper end surface and the lower end surface of the sampling channel, and a gap is formed in the middle of the upper sealing plate, so that a coal sample can fall; the upper sealing plate and the lower sealing plate penetrate through the coal hopper;
a guide rail is arranged between the upper sealing plate and the lower sealing plate, a sampling draw box is movably arranged on the guide rail, and the sampling draw box moves between the upper sealing plate and the lower sealing plate along the guide rail, so that a falling coal sample is conveyed out of a sampling channel; through the upper and lower sealing plates, no raw coal is sprayed in the coal taking process, and the blockage of a measuring point cannot occur;
the length of the guide rail is greater than the diameter of the coal hopper at the joint of the coal hopper and the guide rail, so that the coal sample can be transported out of the box body of the sampling draw box;
the sampling draw box comprises a connecting rod, and two ends of the connecting rod are respectively provided with a box body;
the middle section of the guide rail is hollow; the corresponding positions of the lower sealing plate and the middle section of the guide rail are hollow;
sampling ports are respectively arranged at two ends of the lower sealing plate so as to enable the coal sample to fall;
the coal taking container is placed below the guide rail through the coal taking basket hook, and the coal taking container is a coal taking bag;
a handle or a pull handle is arranged on the outer side of the box body; pulling the sampling draw box, enabling the coal sample in the right sampling draw box to fall into the coal taking bag, pushing the sampling draw box in the opposite direction, enabling the coal sample in the left sampling draw box to fall into the coal taking bag, and repeating the steps until the required number of coal samples are taken.
2. The raw coal push-pull type coal hopper sampling device as claimed in claim 1, wherein: and fixing parts are arranged at two ends of the lower sealing plate to fix the sampling container.
3. The raw coal push-pull type coal hopper sampling device as claimed in claim 1, wherein: the length of the notch is smaller than that of the box body.
4. A coal storage system is characterized in that: the coal sampler comprises a coal hopper, a coal feeder and the sampling device as claimed in claim 1, wherein the coal hopper is arranged at the upper end of the coal feeder, the sampling device is arranged in the middle of the coal hopper, and the sampling amount is controlled by controlling the movement of a sampling draw box in a reciprocating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364275.7A CN107314909B (en) | 2017-05-22 | 2017-05-22 | Raw coal push-pull type coal hopper sampling device and coal storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364275.7A CN107314909B (en) | 2017-05-22 | 2017-05-22 | Raw coal push-pull type coal hopper sampling device and coal storage system |
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| Publication Number | Publication Date |
|---|---|
| CN107314909A CN107314909A (en) | 2017-11-03 |
| CN107314909B true CN107314909B (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710364275.7A Active CN107314909B (en) | 2017-05-22 | 2017-05-22 | Raw coal push-pull type coal hopper sampling device and coal storage system |
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| CN111891730B (en) * | 2020-08-10 | 2022-04-22 | 长春市华宇机电输送设备有限公司 | Reciprocating coal feeder with iron removal function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201297993Y (en) * | 2008-11-26 | 2009-08-26 | 北京金隅红树林环保技术有限责任公司 | Material sampling device |
| CN205620181U (en) * | 2016-02-23 | 2016-10-05 | 唐山黑猫炭黑有限责任公司 | Novel finished product carbon black sampler and sampling operation device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200952974Y (en) * | 2006-09-19 | 2007-09-26 | 沈阳铝镁设计研究院 | Powdery and particle materials hand sampling device |
| CN202362168U (en) * | 2011-08-11 | 2012-08-01 | 山西太钢不锈钢股份有限公司 | Sampling device for sampling using tunnel of blast furnace body |
| CN204731047U (en) * | 2015-07-20 | 2015-10-28 | 安吉县宇宏粘土化工有限公司 | A kind of bentonitic clay sampler and comprise the bentonitic clay storehouse of this bentonitic clay sampler |
| CN204831841U (en) * | 2015-08-26 | 2015-12-02 | 浙江林江化工股份有限公司 | Sampler |
| CN205642878U (en) * | 2016-04-19 | 2016-10-12 | 江阴兴澄特种钢铁有限公司 | Sintering deposit sampling device |
| CN205941084U (en) * | 2016-05-24 | 2017-02-08 | 陈金 | Blanking flows sampling device |
| CN206146663U (en) * | 2016-07-06 | 2017-05-03 | 华北电力大学 | Coal as fired sampling device that stretches out and draws back |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201297993Y (en) * | 2008-11-26 | 2009-08-26 | 北京金隅红树林环保技术有限责任公司 | Material sampling device |
| CN205620181U (en) * | 2016-02-23 | 2016-10-05 | 唐山黑猫炭黑有限责任公司 | Novel finished product carbon black sampler and sampling operation device |
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| CN107314909A (en) | 2017-11-03 |
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Address after: 250002 Wang Yue Road, Ji'nan City, Shandong Province, No. 2000 Patentee after: SHANDONG ELECTRIC POWER Research Institute Patentee after: SHANDONG ZHONGSHI YITONG GROUP Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: 250002 Wang Yue Road, Ji'nan City, Shandong Province, No. 2000 Patentee before: SHANDONG ELECTRIC POWER Research Institute Patentee before: SHANDONG ZHONGSHI YITONG GROUP Co.,Ltd. Patentee before: State Grid Corporation of China |
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Effective date of registration: 20220117 Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. Patentee after: SHANDONG ZHONGSHI YITONG GROUP Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: 250002 Wang Yue Road, Ji'nan City, Shandong Province, No. 2000 Patentee before: SHANDONG ELECTRIC POWER Research Institute Patentee before: SHANDONG ZHONGSHI YITONG GROUP Co.,Ltd. Patentee before: STATE GRID CORPORATION OF CHINA |
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| TR01 | Transfer of patent right |