Rotary full-automatic pulverized coal sampling device

Abstract

The utility model relates to a rotary type full-automatic pulverized coal sampling device which comprises a fixed shell, a first rotary joint fixedly penetrates through one side wall of the fixed shell, the outer end of the first rotary joint is communicated with a cyclone separator through a first pipeline, a sampling bottle is detachably fixed at the tail end of the cyclone separator, and the rotary type full-automatic pulverized coal sampling device further comprises an air pump, one end of the sucking pump is communicated with the top of the cyclone separator, and the other end of the sucking pump is fixedly communicated with a second guide pipe; the sampling device comprises a rotating joint, a sampling pipe and a movable pipe, the outer end of the movable pipe is fixedly communicated with a vertical pipe, the vertical pipe is communicated with the sampling pipe through a driving assembly, and the tail end of the sampling pipe is communicated with an air inlet short pipe. Therefore, rotary multi-point uniform sampling along the section of the pulverized coal pipe during sampling is realized, the representativeness of sampling is improved, and the accuracy of later detection is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal powder sampling technology, specifically a rotary fully automatic coal powder sampling device. Background Technology

[0002] A coal powder sampler is a device used to periodically sample coal powder from the primary air coal powder pipeline in a direct-fired pulverizing system. The coal powder sampler typically uses compressed air as power and generates negative pressure through components such as the sampling tube, separator, and sampling bottle to draw in coal powder.

[0003] Existing coal powder samplers, in practical use, use an air pump to extract coal powder from the coal powder pipe and then guide it into a cyclone separator for separation, allowing the coal powder to enter the sampling bottle. The separated gas is then reintroduced into the coal powder pipe. However, during actual use, the sampling tube rotates, causing it to lie horizontally across the cross-section of the coal powder pipe for sampling. Although multiple equally distributed sampling ports are used, it is not convenient for uniform sampling at multiple points while rotating. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a rotary fully automatic coal powder sampling device to solve the current technical problem that it is not convenient to perform rotating multi-point uniform sampling.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: A rotary fully automatic coal powder sampling device is designed, including a fixed shell, a first rotary joint being fixedly passed through one side wall of the fixed shell, the outer end of the first rotary joint being connected to a cyclone separator through a first pipe, and a sampling bottle being detachably fixed to the tail end of the cyclone separator. The device also includes:

[0006] An air pump, one end of which is connected to the top of the cyclone separator, and the other end of which is fixedly connected to a second conduit, the second conduit passing through the fixed shell;

[0007] The movable tube has a vertical tube fixedly connected to its outer end. The vertical tube is connected to a sampling tube through a drive assembly. The tail end of the sampling tube is fixedly connected to multiple evenly distributed short air inlet tubes.

[0008] A servo motor is fixedly installed on one side of the fixed housing, and the drive shaft of the servo motor passes through the fixed housing and is fixedly connected to the movable tube.

[0009] Specifically, mounting holes adapted to the fixed shell are made on the pulverized coal pipe. The fixed shell is then installed on the pulverized coal pipe. When sampling is required, the servo motor is started to drive the movable tube to rotate, so that the sampling tube is placed horizontally on the cross-section of the pulverized coal pipe. Then, the driving component drives the sampling tube to rotate, and the air pump creates negative pressure, so that the sampling tube can use the air inlet short pipe to draw pulverized coal into the cyclone separator. The cyclone separator then separates the pulverized coal, which is then collected in the sampling bottle. When sampling is not required, the servo motor drives the movable tube to rotate, so that the movable tube, driving component, and sampling tube can be stored in the fixed shell.

[0010] Preferably, the driving component includes:

[0011] A fixed box is fixedly connected to a vertical tube. The vertical tube passes through the top of the fixed box and is connected to a rotating tube through a second rotary joint. Multiple evenly distributed blades are fixedly connected to the outer wall of the rotating tube. The rotating tube movably passes through the fixed box and is fixedly connected to a sampling tube.

[0012] A flexible tube, one end of which is connected to a side wall of a fixed box, and the other end of which is connected to a second conduit;

[0013] An air vent is provided on one side of the top of the fixed box, and a dustproof mesh is fixed inside the air vent.

[0014] Specifically, the clean gas separated by the cyclone separator is introduced into the hose and then into the inner cavity of the fixed box, where it impacts the blade surface, causing the blade to rotate. This, in turn, drives the rotating tube to rotate, indirectly driving the sampling tube to rotate. This eliminates the need for a separate power source, saving energy. Furthermore, the dustproof mesh helps prevent coal dust from entering the fixed box when sampling is not required.

[0015] Preferably, the inner cavity of the fixed shell is provided with a sealing plate, and a plurality of evenly distributed springs are fixedly installed on the back of the sealing plate. The outer ends of the springs are fixedly connected to the inner wall of the fixed shell, and a suitable rubber pad is fixedly glued to the outer wall of the sealing plate.

[0016] Specifically, after the servo motor drives the moving tube to rotate and reset, the air inlet short tube on the sampling tube can be pressed against the sealing plate, and under the action of the spring counter-force, it can be pressed tightly and adhered, which helps to improve the sealing effect of the air inlet short tube and helps to prevent coal dust from entering the sampling tube when sampling is not required.

[0017] Preferably, the drive shaft of the servo motor and the first rotary joint are concentrically arranged.

[0018] Preferably, a triangular block is fixed at the bottom of the inner cavity of the fixed shell.

[0019] Preferably, the outer wall of the fixed shell is fixed with a mounting frame, and the outer wall of the mounting frame is provided with a plurality of evenly distributed mounting holes.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model enables the rotating tube to rotate via a rotary joint. When sampling with the sampling tube, the driving component can drive the sampling tube to rotate, thereby achieving multi-point uniform sampling along the cross-section of the coal powder tube. This helps to improve the representativeness of the sampling and thus improve the accuracy of subsequent testing.

[0022] 2. This utility model introduces the gas separated by the cyclone separator into the fixed box, which impacts the surface of the blades, causing the blades to rotate. This, in turn, causes the rotating tube to rotate, indirectly driving the sampling tube to rotate. This eliminates the need for a separate power source, thus saving energy.

[0023] 3. This utility model has a sealing plate installed in the inner cavity of the fixed shell. After the servo motor drives the movable tube to rotate and reset, the air inlet short tube on the sampling tube can be pressed against the sealing plate. Under the action of the spring counter-force, it can be pressed tightly and adhered, which helps to improve the sealing effect of the air inlet short tube and helps to prevent coal dust from entering the sampling tube when sampling is not required. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a partial structural schematic diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the fixing box of this utility model;

[0027] Figure 4 This is a cross-sectional view of the fixing shell of this utility model;

[0028] In the diagram: 1. Fixed shell; 11. Mounting frame; 12. First rotary joint; 13. Cyclone separator; 14. Sampling bottle; 15. Air pump; 16. Second conduit; 17. Triangular block; 18. Servo motor;

[0029] 2. Movable pipe; 21. Vertical pipe;

[0030] 3. Fixing box; 31. Sampling tube; 32. Short inlet pipe; 33. Flexible hose; 34. Rotating tube; 35. Blade; 36. Air outlet;

[0031] 4. Sealing plate; 41. Spring. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0033] Example 1: A rotary fully automatic pulverized coal sampling device, see [link to example]. Figures 1 to 4 The system includes a fixed housing 1, with a first rotary joint 12 fixedly passing through one side wall of the fixed housing 1. The outer end of the first rotary joint 12 is connected to a cyclone separator 13 via a first pipe. A sampling bottle 14 is detachably fixed to the tail end of the cyclone separator 13. The system also includes:

[0034] The air pump 15 has one end connected to the top of the cyclone separator 13, and the other end of the air pump 15 is fixedly connected to a second conduit 16, which passes through the fixed shell 1. The air pump 15 is used to draw air to form a negative pressure.

[0035] The movable tube 2 has a vertical tube 21 fixedly connected to its outer end. The vertical tube 21 is connected to the sampling tube 31 through the drive assembly. The tail end of the sampling tube 31 is fixedly connected to multiple evenly distributed short air inlet tubes 32.

[0036] Servo motor 18 is fixedly installed on one side of fixed housing 1. The drive shaft of servo motor 18 passes through fixed housing 1 and is fixedly connected to movable tube 2.

[0037] It should be noted that the drive shaft of the servo motor 18 and the first rotary joint 12 are concentrically arranged.

[0038] It should be understood that in actual use, mounting holes adapted to the fixed shell 1 are opened on the pulverized coal pipe, and then the fixed shell 1 is installed on the pulverized coal pipe. When sampling is required, the servo motor 18 is started to drive the movable tube 2 to rotate, so that the sampling tube 31 is placed horizontally on the cross section of the pulverized coal pipe. Then, the driving component drives the sampling tube 31 to rotate, and the air pump 15 forms a negative pressure, so that the sampling tube 31 can use the air inlet short pipe 32 to draw the pulverized coal into the cyclone separator 13. Then, the cyclone separator 13 separates the pulverized coal, so that the pulverized coal will enter the sampling bottle 14 for collection. When sampling is not required, the servo motor 18 drives the movable tube 2 to rotate, so that the movable tube 2, the driving component, and the sampling tube 31 can be stored in the fixed shell 1.

[0039] Furthermore, a mounting frame 11 is fixed to the outer wall of the fixed shell 1. The outer wall of the mounting frame 11 has multiple evenly distributed mounting holes. The mounting frame 11 facilitates the fixed connection between the fixed shell 1 and the pulverized coal pipe.

[0040] Furthermore, a triangular block 17 is fixed at the bottom of the inner cavity of the fixed shell 1. The setting of the triangular block 17 allows the coal powder entering the fixed shell 1 when not sampling to slide down the inclined surface of the triangular block 17, which helps to avoid accumulation inside the fixed shell 1.

[0041] like Figure 1 , 2 3. The driving components include:

[0042] The fixed box 3 is fixedly connected to the vertical tube 21. The vertical tube 21 passes through the top of the fixed box 3 and is connected to the rotating tube 34 through the second rotary joint. Multiple evenly distributed blades 35 are fixedly connected to the outer wall of the rotating tube 34. The rotating tube 34 movably passes through the fixed box 3 and is fixedly connected to the sampling tube 31.

[0043] The hose 33 has one end connected to a side wall of the fixing box 3, and the other end connected to the second conduit 16.

[0044] Vent 36 is located on one side of the top of the fixed box 3, and a dustproof mesh plate is fixed inside the vent 36.

[0045] It should be understood that the clean gas separated by the cyclone separator 13 is introduced into the hose 33 and then into the inner cavity of the fixed box 3, thereby impacting the surface of the blade 35, causing the blade 35 to rotate, which in turn drives the rotating tube 34 to rotate, indirectly driving the sampling tube 31 to rotate, thus eliminating the need for a separate power source to drive it, which is beneficial for saving energy. Furthermore, the dustproof mesh plate helps to prevent coal dust from entering the fixed box 3 when sampling is not required.

[0046] like Figure 1 and 4 As shown, a sealing plate 4 is provided in the inner cavity of the fixed shell 1. Multiple evenly distributed springs 41 are fixedly installed on the back of the sealing plate 4. The outer ends of the springs 41 are fixedly connected to the inner wall of the fixed shell 1. A suitable rubber pad is fixedly glued to the outer wall of the sealing plate 4.

[0047] It should be understood that after the servo motor 18 drives the movable tube 2 to rotate and reset, the air inlet short tube 32 on the sampling tube 31 can be pressed onto the sealing plate 4, and under the action of the spring 41's counter-thrust, it can be pressed tightly together, which helps to improve the sealing effect of the air inlet short tube 32 and helps to prevent coal dust from entering the sampling tube 31 when sampling is not required.

[0048] It should be noted that after sampling stops, when the moving tube 2 drives the sampling tube 31 to rotate and reset, the sampling tube 31 will tilt after rotating a certain angle. At this time, the servo motor 18 will stop retracting, and the drive component will not be driven by power. Thus, the sampling tube 31 can rotate freely. At this time, one end of the sampling tube 31 will rotate under the action of gravity, so that the sampling tube 31 rotates to be parallel to the moving tube 2. Then, under the action of inertia, the sampling tube 31 will sway back and forth. When its swaying amplitude decreases, the servo motor 18 can continue to drive the moving tube 2 to reset. Thus, there will be no spatial obstruction when the sampling tube 31 enters the fixed shell 1.

[0049] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0050] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A rotary fully automatic coal powder sampling device, comprising a fixed shell (1), wherein a first rotary joint (12) is fixedly inserted through one side wall of the fixed shell (1), the outer end of the first rotary joint (12) is connected to a cyclone separator (13) through a first pipe, and a sampling bottle (14) is detachably fixed to the tail end of the cyclone separator (13), characterized in that, Also includes: An air pump (15) is provided, one end of which is connected to the top of the cyclone separator (13), and the other end of which is fixedly connected to a second conduit (16), which passes through the fixed shell (1). The active tube (2) has a vertical tube (21) fixedly connected to its outer end. The vertical tube (21) is connected to the sampling tube (31) through a drive assembly. The tail end of the sampling tube (31) is fixedly connected to a plurality of evenly distributed short air inlet tubes (32). Servo motor (18) is fixedly installed on one side of fixed housing (1). The drive shaft of servo motor (18) passes through fixed housing (1) and is fixedly connected to movable tube (2).

2. The rotary fully automatic coal powder sampling device as described in claim 1, characterized in that, The driving component includes: A fixed box (3) is fixedly connected to a vertical tube (21). The vertical tube (21) passes through the top of the fixed box (3) and is connected to a rotating tube (34) through a second rotating joint. Multiple evenly distributed blades (35) are fixedly connected to the outer wall of the rotating tube (34). The rotating tube (34) movably passes through the fixed box (3) and is fixedly connected to the sampling tube (31). A flexible tube (33) is connected at one end to a side wall of a fixed box (3), and at the other end to a second conduit (16). An air vent (36) is provided on one side of the top of the fixed box (3), and a dustproof mesh plate is fixed inside the air vent (36).

3. The rotary fully automatic coal powder sampling device as described in claim 1, characterized in that, The inner cavity of the fixed shell (1) is provided with a sealing plate (4), and a plurality of evenly distributed springs (41) are fixedly installed on the back of the sealing plate (4). The outer ends of the springs (41) are fixedly connected to the inner wall of the fixed shell (1), and a suitable rubber pad is fixedly glued to the outer wall of the sealing plate (4).

4. The rotary fully automatic coal powder sampling device as described in claim 1, characterized in that, The drive shaft of the servo motor (18) and the first rotary joint (12) are concentrically arranged.

5. The rotary fully automatic coal powder sampling device as described in claim 1, characterized in that, A triangular block (17) is fixed at the bottom of the inner cavity of the fixed shell (1).

6. The rotary fully automatic coal powder sampling device as described in claim 1, characterized in that, The outer wall of the fixed shell (1) is fixed with a mounting frame (11), and the outer wall of the mounting frame (11) has a plurality of evenly distributed mounting holes.

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