Pulverized coal sampler for multi-stage stratified sampling

Abstract

The utility model relates to the technical field of coal sampling, and discloses a multi-stage stratified sampling pulverized coal sampler which comprises a pulverized coal sampler whole body, the pulverized coal sampler whole body comprises an adjusting pressing mechanism and a stratified sampling mechanism, and the stratified sampling mechanism comprises a first sampling cavity, a second sampling cavity, a third sampling cavity, a fourth sampling cavity and a fifth sampling cavity. A partition plate is arranged between every two adjacent sampling cavities, pulverized coal inlets are formed in the surfaces of the first sampling cavity, the second sampling cavity, the third sampling cavity, the fourth sampling cavity and the fifth sampling cavity, and a discharging channel is formed in the bottom end of the first sampling cavity. When pulverized coal in the second sampling cavity, the third sampling cavity, the fourth sampling cavity and the fifth sampling cavity needs to be detected in sequence, the partition plates below the sampling cavities are opened, and the pulverized coal stored in the sampling cavities can fall down, so that layered sampling detection of the pulverized coal at each layer is realized, and the pulverized coal at different layers is obtained; and the detection is convenient.

Description

Technical Field

[0001] The utility model relates to the field of coal sampling, in particular to a coal powder sampler for multi-level layered sampling. Background Art

[0002] For large coal-fired boilers, coal powder fineness is an important parameter for measuring the boiler pulverizing system. Severely exceeding the standard for coal powder fineness will bring many problems to production, such as difficulty in igniting coal powder and unstable flame combustion. Therefore, it is necessary to accurately measure the coal powder fineness and control it to achieve the best operation mode of the boiler. Therefore, it is necessary to test the coal powder. The factory provides a large amount of coal powder, which is usually piled together to form a coal mountain. Traditional sampling equipment can only detect coal powder on the surface. When it is necessary to test deep coal seams, it is often necessary to dig up the coal mountain for testing. It is impossible to sample and test the coal powder distributed in each layer at the same time. Therefore, we proposed a multi-level stratified sampling coal powder sampler. Utility Model Content

[0003] In order to solve the technical problem that traditional sampling equipment can only detect coal powder on the surface, and when deep coal seams need to be detected, the coal mountain often needs to be dug up for detection, and the coal powder distributed in each layer cannot be sampled and detected simultaneously, the utility model provides a coal powder sampler with multi-level stratified sampling.

[0004] The utility model is implemented by the following technical solutions: a multi-stage stratified sampling coal powder sampler, including a coal powder sampler as a whole, the coal powder sampler as a whole includes an adjusting and pressing mechanism and a stratified sampling mechanism, the stratified sampling mechanism includes a first sampling chamber, a second sampling chamber, a third sampling chamber, a fourth sampling chamber and a fifth sampling chamber, a partition plate is provided between adjacent sampling chambers, a coal powder inlet is provided on the surface of the first sampling chamber, the second sampling chamber, the third sampling chamber, the fourth sampling chamber and the fifth sampling chamber, and a feeding channel is provided at the bottom end of the first sampling chamber.

[0005] The specific working steps in this embodiment are as follows: after the stratified sampling mechanism is inserted into the coal powder pile, the coal powder passes through the coal powder inlet and enters the first sampling chamber, the second sampling chamber, the third sampling chamber, the fourth sampling chamber and the fifth sampling chamber from the coal powder inlet, and is stored inside each sampling chamber. The coal powder collected in each sampling chamber is separated by a partition plate. When the sampling is completed and subsequent coal powder detection is required, when the coal powder in the first sampling chamber needs to be detected, the partition plate below the first sampling chamber is opened, and the coal powder in the first sampling chamber falls from the first sampling chamber and passes through the opening of the discharge channel and falls onto the detection equipment. When the coal powder in the second sampling chamber, the third sampling chamber, the fourth sampling chamber and the fifth sampling chamber need to be detected in sequence, the partition plates below each are opened, and the coal powder stored in the sampling chamber will fall, thereby realizing stratified sampling and detection of coal powder in each layer, thereby obtaining coal powder in different layers, which is convenient for detection.

[0006] As a further improvement of the above scheme, the pressing mechanism is adjusted to cooperate with the stratified sampling mechanism to perform working sampling. The pressing mechanism includes a support seat, which supports the coal powder sampler as a whole. The support seat is connected to a support frame above the support seat. The surface of the support frame is connected to one end of the receiving frame. The receiving frame is connected to a handle. The bottom end of the receiving frame is provided with a deflection axis.

[0007] The outer side of the deflection axis is connected to a shaft rod, and the other end of the shaft rod is connected to an adjusting shaft rod. The adjusting shaft rod is arranged at the connection between the shaft rod and the connecting rod. The connecting rod and the shaft rod are deflected through the adjusting shaft rod. The end of the connecting rod away from the adjusting axis rod is connected to a movable axis rod, and the movable axis rod extends inwardly and is connected to an adjusting rod. The adjusting rod is inserted between the limit frames, and the surface of the adjusting rod is sleeved with a connecting shaft seat, and the bottom of the connecting shaft seat is connected to a mounting rod. A sliding groove is provided on the inner surface of the limit frame, and the adjusting rod slides in the sliding groove. The stratified sampling mechanism is connected to the bottom end of the mounting rod.

[0008] The staff holds the coal powder sampler as a whole and supports the support seat on the surface of the "coal mountain" formed by the coal powder. Then the staff holds the handle and presses the handle. The handle then drives the receiving frame connected to it to move, and the receiving frame then drives the deflection axis connected to its bottom end to move. The deflection axis thereby drives the shaft rod connected to it to deflect, and the shaft rod thereby pulls the adjustment axis to move, and the adjustment axis then drives the connecting rod connected to it to move synchronously, and the connecting rod thereby descends, and the movable axis connected to the top of the connecting rod then descends synchronously, and the movable axis then drives the adjusting rod to descend synchronously, and the adjusting rod then slides inside the slide slot, and the adjusting rod drives the connecting shaft seat and the mounting rod to descend synchronously, and the stratified sampling mechanism connected below the mounting rod then descends synchronously, and the stratified sampling mechanism is thereby inserted into the coal powder pile, and the stratified sampling mechanism samples the coal powder.

[0009] As a further improvement of the above solution, the first sampling cavity, the second sampling cavity, the third sampling cavity, the fourth sampling cavity and the fifth sampling cavity are all rectangular parallelepiped cavities, and the partition plate is a rectangular sheet plate.

[0010] As a further improvement of the above scheme, the coal powder inlet is a circular opening, and the coal powder inlet is opened on the surface of the first sampling chamber, the second sampling chamber, the third sampling chamber, the fourth sampling chamber and the fifth sampling chamber, and the coal powder inlet is opened at the top of each group of sampling chambers.

[0011] As a further improvement of the above solution, an opening is provided at the bottom end of the pyramid of the feeding channel, and the feeding channel is in the shape of a three-dimensional quadrangular pyramid, which is convenient for inserting into the coal powder.

[0012] As a further improvement of the above scheme, the first sampling chamber, the second sampling chamber, the third sampling chamber, the fourth sampling chamber and the fifth sampling chamber constitute the whole sampling chamber, and a partition plate is arranged between each group of adjacent sampling chambers to block each group of adjacent sampling chambers. The partition plate is movably arranged, and when the partition plate is pulled open, the adjacent sampling chambers are connected.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. When it is necessary to detect the coal powder in the second sampling chamber, the third sampling chamber, the fourth sampling chamber and the fifth sampling chamber in sequence, the partition plates below each of them are opened, and the coal powder stored in the sampling chambers will fall, thereby realizing layered sampling and detection of coal powder at each layer, thereby obtaining coal powder at different layers, which is convenient for detection.

[0015] 2. The utility model drives the connecting shaft seat and the mounting rod to descend synchronously through the adjusting rod, and the stratified sampling mechanism connected below the mounting rod is then lowered synchronously, so that the stratified sampling mechanism is inserted into the coal powder pile and samples the coal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Schematic diagram of the structural cross section of the middle part;

[0018] Figure 3 This is a schematic diagram of the connection structure of the layered sampling mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model partition plate in the installed state;

[0020] Figure 5 This is a schematic diagram of the planar structure of the layered sampling mechanism of the utility model.

[0021] Description of main symbols:

[0022] 1. Coal powder sampler as a whole; 2. Adjusting and pressing mechanism; 21. Support seat; 22. Support frame; 23. Receiving frame; 24. Handle; 25. Deflection axis; 26. Shaft; 27. Adjusting axis; 28. Connecting rod; 29. ​​Movable axis; 210. Adjusting rod; 211. Limiting frame; 212. Connecting shaft seat; 213. Mounting rod; 214. Slide; 3. Layered sampling mechanism; 31. First sampling chamber; 32. Second sampling chamber; 33. Third sampling chamber; 34. Fourth sampling chamber; 35. Fifth sampling chamber; 36. Partition plate; 37. Coal powder inlet; 38. Feeding channel. DETAILED DESCRIPTION

[0023] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example 1:

[0025] Please combine Figure 3 -

[0026] Figure 5 This embodiment proposes a multi-stage stratified sampling coal sampler, including a coal sampler as a whole 1. The coal sampler as a whole 1 includes an adjustment and pressing mechanism 2 and a stratified sampling mechanism 3. The stratified sampling mechanism 3 includes a first sampling chamber 31, a second sampling chamber 32, a third sampling chamber 33, a fourth sampling chamber 34 and a fifth sampling chamber 35. A partition plate 36 is provided between adjacent sampling chambers. The first sampling chamber 31, the second sampling chamber 32, the third sampling chamber 33, the fourth sampling chamber 34 and the fifth sampling chamber 35 constitute the entire sampling chamber. The partition plate 36 is provided between each group of adjacent sampling chambers to block each group of adjacent sampling chambers. The partition plate 36 is movably provided. When the partition plate 36 is pulled open, the adjacent sampling chambers are connected.

[0027] A coal powder inlet 37 is provided on the surface of the first sampling chamber 31, the second sampling chamber 32, the third sampling chamber 33, the fourth sampling chamber 34 and the fifth sampling chamber 35. The first sampling chamber 31, the second sampling chamber 32, the third sampling chamber 33, the fourth sampling chamber 34 and the fifth sampling chamber 35 are all rectangular parallelepiped cavities, and the partition plate 36 is a rectangular sheet-like plate.

[0028] The pulverized coal inlet 37 is a circumferential opening, which is opened on the surface of the first sampling chamber 31, the second sampling chamber 32, the third sampling chamber 33, the fourth sampling chamber 34 and the fifth sampling chamber 35, and the pulverized coal inlet 37 is opened at the top of each group of sampling chambers.

[0029] A feeding channel 38 is provided at the bottom end of the first sampling cavity 31 . The feeding channel 38 is in the shape of a three-dimensional quadrangular pyramid, and an opening is provided at the bottom end of the pyramid.

[0030] The specific working steps of this embodiment 1 are as follows: after the stratified sampling mechanism 3 is inserted into the coal powder pile, the coal powder passes through the coal powder inlet 37 and enters the first sampling chamber 31, the second sampling chamber 32, the third sampling chamber 33, the fourth sampling chamber 34 and the fifth sampling chamber 35 from the coal powder inlet 37, and is stored inside each sampling chamber. The coal powder collected in each sampling chamber is separated by the partition plate 36. When the sampling is completed and the subsequent coal powder detection is required, when the coal powder in the first sampling chamber 31 needs to be detected, the first sampling chamber 31 is opened and the coal powder is removed. The partition plate 36 below the sampling chamber 31, the coal powder in the first sampling chamber 31 falls from the first sampling chamber 31, passes through the opening of the discharge channel 38 and falls onto the detection equipment. When it is necessary to detect the coal powder in the second sampling chamber 32, the third sampling chamber 33, the fourth sampling chamber 34 and the fifth sampling chamber 35 in sequence, the partition plates 36 below each are opened, and the coal powder stored in the sampling chamber will fall, thereby realizing stratified sampling and detection of coal powder at each layer, thereby obtaining coal powder at different layers, which is convenient for detection.

[0031] Example 2:

[0032] Please combine Figure 1 -

[0033] Figure 2 This embodiment further provides an adjustment and pressing mechanism 2, which cooperates with the stratified sampling mechanism 3 to perform working sampling. The adjustment and pressing mechanism 2 includes a support base 21, which supports the coal powder sampler as a whole 1. The support base 21 is connected to a support frame 22 above, and one end of a receiving frame 23 is connected to the surface of the support frame 22. A handle 24 is connected to the receiving frame 23, and a deflection axis 25 is provided at the bottom end of the receiving frame 23.

[0034] The outer side of the deflection axis 25 is connected to a shaft 26, and the other end of the shaft 26 is connected to an adjusting shaft 27. The adjusting shaft 27 is arranged at the connection between the shaft 26 and the connecting rod 28. The connecting rod 28 and the shaft 26 are deflected through the adjusting shaft 27. The end of the connecting rod 28 away from the adjusting axis 27 is connected to a movable shaft 29. The movable shaft 29 extends inwardly and is connected to an adjusting rod 210. The adjusting rod 210 is inserted between the limit frames 211. The surface of the adjusting rod 210 is sleeved with a connecting shaft seat 212. The bottom of the connecting shaft seat 212 is connected to a mounting rod 213. The inner surface of the limit frame 211 is provided with a slide groove 214. The adjusting rod 210 slides in the slide groove 214. The stratified sampling mechanism 3 is connected to the bottom end of the mounting rod 213.

[0035] The specific working steps in this embodiment 2 are as follows: the staff holds the coal powder sampler as a whole 1, supports the support seat 21 on the surface of the "coal mountain" formed by the coal powder, and then the staff holds the handle 24, and then presses the handle 24, and the handle 24 then drives the receiving frame 23 connected thereto to move, and the receiving frame 23 then drives the deflection axis 25 connected to its bottom end to move, and the deflection axis 25 thereby drives the shaft 26 connected thereto to deflect, and the shaft 26 thereby pulls the adjustment axis 27 to move, and the adjustment axis 27 then drives the connecting The connecting rod 28 moves synchronously, and the connecting rod 28 thereby descends, and the movable axis 29 connected to the top of the connecting rod 28 then descends synchronously, and the movable axis 29 then drives the adjusting rod 210 to descend synchronously, and the adjusting rod 210 then slides inside the slide groove 214, and the adjusting rod 210 thereby drives the connecting shaft seat 212 and the mounting rod 213 to descend synchronously, and the stratified sampling mechanism 3 connected below the mounting rod 213 then descends synchronously, and the stratified sampling mechanism 3 is thereby inserted into the coal powder pile, and the stratified sampling mechanism 3 samples the coal powder.

[0036] The specific implementation steps of the overall technical solution of this utility model are as follows:

[0037] When sampling is required, the staff holds the coal dust sampler as a whole 1 and supports the support seat 21 on the surface of the "coal mountain" formed by the coal dust. Then the staff holds the handle 24 and presses the handle 24. The handle 24 then drives the receiving frame 23 connected thereto to move. The receiving frame 23 then drives the deflection axis 25 connected to its bottom end to move. The deflection axis 25 thereby drives the shaft 26 connected thereto to deflect. The shaft 26 thereby pulls the adjustment axis 27 to move. The adjustment axis 27 then drives the connecting rod 2 connected thereto. 8 performs synchronous movement, the connecting rod 28 thereby descends, the movable shaft 29 connected to the top of the connecting rod 28 then descends synchronously, the movable shaft 29 then drives the adjusting rod 210 to descend synchronously, the adjusting rod 210 then slides inside the slide groove 214, the adjusting rod 210 thereby drives the connecting shaft seat 212 and the mounting rod 213 to descend synchronously, the stratified sampling mechanism 3 connected below the mounting rod 213 then descends synchronously, the stratified sampling mechanism 3 is thereby inserted into the pulverized coal pile, and the stratified sampling mechanism 3 samples the pulverized coal;

[0038] After the layered sampling mechanism 3 is plugged into the coal powder pile, the coal powder passes through the coal powder inlet 37, enters the first sampling cavity 31, the second sampling cavity 32, the third sampling cavity 33, the fourth sampling cavity 34 and the fifth sampling cavity 35 from the coal powder inlet 37, and is stored in each sampling cavity, the coal powder collected in each sampling cavity is separated by the partition plate 36, when the subsequent coal powder detection is needed after the sampling is completed, the coal powder in the first sampling cavity 31 falls from the first sampling cavity 31 and falls into the detection equipment through the opening of the discharging channel 38 when the coal powder in the first sampling cavity 31 needs to be detected, when the coal powder in the second sampling cavity 32, the third sampling cavity 33, the fourth sampling cavity 34 and the fifth sampling cavity 35 needs to be detected in turn, the partition plates 36 below the sampling cavities are opened, the coal powder stored in the sampling cavities falls, thereby realizing the layered sampling and detection of the coal powder in each layer, thereby obtaining the coal powder in different layers, and facilitating the detection.

[0039] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application, and any non-essential changes and replacements made by those skilled in the art on the basis of the present application all belong to the scope of protection required by the present application.

Claims

1. A multi-stage stratified sampling coal sampler, comprising a coal sampler as a whole, characterized in that: The pulverized coal sampler as a whole includes an adjusting and pressing mechanism and a stratified sampling mechanism, wherein the stratified sampling mechanism includes a first sampling chamber, a second sampling chamber, a third sampling chamber, a fourth sampling chamber and a fifth sampling chamber, and a partition plate is provided between adjacent sampling chambers. The surfaces of the first sampling chamber, the second sampling chamber, the third sampling chamber, the fourth sampling chamber and the fifth sampling chamber are all provided with a pulverized coal inlet, and the bottom end of the first sampling chamber is provided with a discharge channel.

2. A multi-stage stratified sampling coal sampler according to claim 1, characterized in that: The first sampling chamber, the second sampling chamber, the third sampling chamber, the fourth sampling chamber and the fifth sampling chamber constitute a whole sampling chamber. The partition plate is arranged between each group of adjacent sampling chambers to block each group of adjacent sampling chambers. The partition plate is movably arranged. When the partition plate is pulled open, the adjacent sampling chambers are connected.

3. The multi-stage stratified sampling coal sampler according to claim 1, characterized in that: The first sampling cavity, the second sampling cavity, the third sampling cavity, the fourth sampling cavity and the fifth sampling cavity are all rectangular parallelepiped cavities, and the partition plate is a rectangular sheet plate; The pulverized coal inlet is a circular opening, which is opened on the surface of the first sampling cavity, the second sampling cavity, the third sampling cavity, the fourth sampling cavity and the fifth sampling cavity, and is opened at the top of each group of sampling cavities.

4. The multi-stage stratified sampling coal sampler according to claim 1, characterized in that: The material discharge channel is in the shape of a three-dimensional quadrangular pyramid, and an opening is provided at the bottom end of the pyramid of the material discharge channel.

5. The multi-stage stratified sampling coal sampler according to claim 1, characterized in that: The adjusting and pressing mechanism includes a support seat, the support seat supports the coal powder sampler as a whole, the support seat is connected to a support frame above, the surface of the support frame is connected to one end of a receiving frame, the receiving frame is connected to a handle, and the bottom end of the receiving frame is provided with a deflection axis; The outer side of the deflection axis is connected to a shaft rod, and the other end of the shaft rod is connected to an adjusting shaft center, and the adjusting shaft center is arranged at the connection between the shaft rod and the connecting rod, and the connecting rod and the shaft rod are deflected by the adjusting shaft center, and the end of the connecting rod away from the adjusting axis is connected to a movable shaft center, and the movable shaft center extends inwardly and is connected to the adjusting rod, and the adjusting rod is inserted between the limit frames, and the surface of the adjusting rod is sleeved with a connecting shaft seat, and a mounting rod is connected to the bottom of the connecting shaft seat, and a sliding groove is provided on the inner surface of the limit frame, and the adjusting rod slides in the sliding groove, and the stratified sampling mechanism is connected to the bottom end of the mounting rod.

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