Suction type cyclone separation sampling device

Abstract

The utility model relates to the field of industrial separation equipment, and discloses a suction type cyclone separation sampling device, which comprises a raw material cylinder and a collecting cylinder, the outer wall of the middle part of the raw material cylinder is fixedly connected with a discharging pipe, the other end of the discharging pipe is fixedly connected with a feeding pipe, the other end of the feeding pipe is fixedly connected with a separation cylinder, and the collecting cylinder is fixedly connected with a discharging pipe. A separation cover is arranged at the top of the separation barrel and fixedly connected with an air outlet pipe, a spiral rail is fixedly connected to the inner wall of the separation barrel, a funnel is fixedly connected to the bottom of the separation barrel, a collecting pipe is in threaded connection with the inner wall of the funnel, and a collecting cover is fixedly connected to the bottom of the collecting pipe. And an exhaust pipe is fixedly connected to the interior of the right side of the collecting barrel, an air pump is fixedly connected to the right end of the exhaust pipe, and a valve assembly is rotationally connected to the interior of the discharging pipe. According to the utility model, the raw materials polluted by external air are prevented, and the feeding time and the flow of the raw materials are controlled.

Description

Technical Field

[0001] The utility model relates to the field of industrial separation equipment, in particular to a suction type cyclone separation sampling device. Background Art

[0002] A suction type cyclone separation sampling device is a special equipment that uses the principles of negative pressure suction and cyclone separation to extract the gas-powder mixture from a pulverized coal pipeline and conduct solid-gas separation. It is usually used in a positive pressure direct blowing pulverizing system and is mainly used to sample and detect pulverized coal during the daily operation of a coal mill.

[0003] After searching the Chinese patent literature publication number CN204666401U, a direct blowing coal mill pulverized coal cyclone bag type separation sampling device is disclosed, including a pulverized coal pipe, an in-pipe sampling head for pulverized coal, an external operation sampling valve, an external cyclone bag type separation device, a sample collection cup, a backflush valve, an evacuation valve, a connecting pipe, and a filter bag. The characteristics are as follows: in the utility model, the in-pipe sampling head for pulverized coal is directly fixedly arranged at the center of the pulverized coal pipe, and cyclone separation and bag type filtration are adopted to completely separate the gas and powder mixture into solid and gas, and then the pulverized coal sample is collected. The sample taken is more real and more representative, improving the accuracy of sampling detection. The structure is simpler and the operation is more convenient. It overcomes the deficiencies of the prior art.

[0004] The beneficial effects mentioned in the above patent specification are as follows: "The utility model discloses a direct blowing coal mill pulverized coal cyclone bag type separation sampling device, which reasonably solves the problems of insufficient representativeness of the samples taken in the prior art, low accuracy of detection, complicated structure, and inconvenient operation. In the utility model, the in-pipe sampling head for pulverized coal is directly fixedly arranged at the center of the pulverized coal pipe, and cyclone separation and bag type filtration are adopted to completely separate the gas and powder mixture into solid and gas, and then the pulverized coal sample is collected. The sample taken is more real and more representative, improving the accuracy of sampling detection. The structure is simpler and the operation is more convenient, overcoming the deficiencies of the prior art." Although the above patent can solve the problems of low accuracy of detection and complicated structure and inconvenient operation, in the prior art, it is difficult to prevent the raw material sample from being contaminated by external air and to control the feeding time and flow rate. Since the working principle of a cyclone separator is to separate solid particles or liquid droplets by the rotational movement caused by the tangential introduction of air flow, if there are impurities in the external air, these impurities may enter the cyclone separator along with the air flow, thus contaminating the raw material sample. The impurities in the external air may cause the separation efficiency of the cyclone separator to decrease because these impurities may interfere with the normal rotational movement of the air flow and affect the centrifugal force of the particles, thereby reducing the separation effect. In addition, if the feeding time cannot be accurately controlled, it may lead to too much or too little feeding, affecting the separation efficiency and the representativeness of the sample. If the flow rate is too large, it may cause too high an air flow velocity, resulting in vortex and backmixing phenomena and reducing the separation efficiency, while if the flow rate is too small, the separation efficiency may not be high. Summary of the Invention

[0005] To make up for the above deficiencies, the present utility model provides a suction type cyclone separation sampling device, aiming to improve the problems of difficulty in preventing external air pollution and difficulty in controlling the feeding time and flow rate of raw materials.

[0006] To achieve the above object, the present utility model adopts the following technical solutions: A suction type cyclone separation sampling device, including a raw material cylinder and a collection cylinder. The outer wall of the middle part of the raw material cylinder is fixedly connected with a discharge pipe, the other end of the discharge pipe is fixedly connected with a feed pipe, the other end of the feed pipe is fixedly connected with a separation cylinder, the top of the separation cylinder is provided with a separation cover, the separation cover is fixedly connected with an air outlet pipe, the inner wall of the separation cylinder is fixedly connected with a spiral track, the bottom of the separation cylinder is fixedly connected with a funnel, the inner wall of the funnel is threadedly connected with a collection pipe, the bottom of the collection pipe is fixedly connected with a collection cover, the right side inside of the collection cylinder is fixedly connected with an air extraction pipe, the right end of the air extraction pipe is fixedly connected with an air pump, and a valve assembly is rotatably connected inside the discharge pipe.

[0007] As a further description of the above technical solution:

[0008] The valve assembly includes a fixed block, a rotating column is rotatably connected inside the fixed block, a spherical door is fixedly connected to the bottom of the rotating column, a handle is fixedly connected to the middle of the rotating column, and a nut is rotatably connected to the top end of the rotating column.

[0009] As a further description of the above technical solution:

[0010] A first filter screen is fixedly connected to the inner wall of the bottom of the air outlet pipe, and a second filter screen is fixedly connected to the left end of the air extraction pipe.

[0011] As a further description of the above technical solution:

[0012] The top of the collection cylinder is in contact with the outer wall of the bottom of the collection cover, and the outer wall of the spherical door is rotatably connected to the inner wall of the discharge pipe.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the bottom of the nut is in contact with the upper side outer wall of the handle.

[0015] As a further description of the above technical solution:

[0016] The bottom end of the rotating column is rotatably connected inside the discharge pipe, and the lower side inner wall of the handle is in contact with the top outer wall of the fixed block.

[0017] The present utility model has the following beneficial effects:

[0018] 1. In the present utility model, the separated air is discharged through the first filter screen. The residual raw materials carried therein are intercepted and returned to the bottom funnel by the action of the first filter screen. At the same time, when external air enters, the particulate contamination carried in the air will be intercepted outside the separation mechanism. The samples in the collection box cannot enter the air pump due to the filtering effect of the second filter screen, achieving the purpose of preventing the raw materials from being contaminated by particulate matter in the external air. At the same time, it also reduces the loss of raw materials and protects the air pump device, which is beneficial to improving the sampling accuracy and the purity of the samples.

[0019] 2. In the present utility model, by rotating the handle to drive the spherical door to rotate in the discharge pipe, the internal hollow opening is aligned with the internal cavity of the discharge pipe, thereby controlling the opening and closing of the valve, achieving the control of the feeding time and the quantity of the samples, and reducing the waste of raw materials and accurately controlling the quantity of the samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional view of the suction type cyclone separation sampling device proposed by the present utility model;

[0021] Figure 2 is a schematic structural view of the collection cylinder of the suction type cyclone separation sampling device proposed by the present utility model;

[0022] Figure 3 is Figure 2 the enlarged view at A in

[0023] LEGEND DESCRIPTION:

[0024] 1. Raw material cylinder; 2. Discharge pipe; 3. Feed pipe; 4. Separation cylinder; 5. Air outlet pipe; 6. First filter screen; 7. Spiral track; 8. Funnel; 9. Collection pipe; 10. Collection cylinder; 11. Second filter screen; 12. Suction pipe; 13. Air pump; 14. Fixed block; 15. Rotating column; 16. Handle; 17. Nut; 18. Spherical door; 19. Separation cover; 20. Collection cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Refer to Figure 1 、 Figure 2, an embodiment provided by the present utility model: a suction type cyclone separation sampling device, which includes a raw material cylinder 1 and a collection cylinder 10 for storing materials to be processed. The outer wall of the middle part of the raw material cylinder 1 is fixedly connected with a discharge pipe 2 to ensure that the materials can be smoothly transferred from the raw material cylinder 1 to the feed pipe 3. The other end of the discharge pipe 2 is fixedly connected with a feed pipe 3, and the other end of the feed pipe 3 is fixedly connected with a separation cylinder 4, which is the core component of cyclone separation. The inner wall of the separation cylinder 4 is fixedly connected with a spiral track 7 to increase the rotation path of the materials in the separation cylinder 4 and improve the separation efficiency. The top of the separation cylinder 4 is provided with a separation cover 19, and the separation cover 19 is fixedly connected with an air outlet pipe 5. The inner wall of the separation cylinder 4 is fixedly connected with a spiral track 7. The bottom of the separation cylinder 4 is fixedly connected with a funnel 8, and the inner wall of the funnel 8 is threadedly connected with a collection pipe 9. The bottom of the collection pipe 9 is fixedly connected with a collection cover 20. The right side inside the collection cylinder 10 is fixedly connected with an air extraction pipe 12 for collecting the materials after cyclone separation. The right side inside the collection cylinder 10 is fixedly connected with an air extraction pipe 12 for providing a negative pressure environment to help the materials separate and collect better. The right end of the air extraction pipe 12 is fixedly connected with an air pump 13, which is the power source of the entire suction type cyclone separation sampling device, responsible for generating sufficient negative pressure to ensure that the materials can be smoothly transported through the pipeline system and effectively separated. The inside of the discharge pipe 2 is rotatably connected with a valve assembly for controlling the material flow direction and can adjust the material flow rate as needed.

[0027] Refer to Figures 1 - 3 , the valve assembly includes a fixed block 14, which is usually fixed inside the discharge pipe 2 to provide support and positioning for the rotating column 15. The inside of the fixed block 14 is rotatably connected with a rotating column 15, which is rotatably connected inside the fixed block 14, allowing the user to control the opening and closing of the valve by rotation. The design of the rotating column 15 needs to ensure that it can rotate smoothly and has good sealing performance to prevent material leakage. The bottom of the rotating column 15 is fixedly connected with a spherical door 18, and this design enables it to better fit the inner wall of the discharge pipe 2, so as to form an effective seal when closed and prevent the material from flowing. The middle part of the rotating column 15 is fixedly connected with a handle 16, and the top of the rotating column 15 is rotatably connected with a nut 17.

[0028] Refer to Figures 1 - 3, the inner wall of the bottom of the air outlet pipe 5 is fixedly connected with a first filter screen 6, whose function is to prevent solid particles or droplets from being discharged with the gas and ensure the purity of the gas. The presence of the first filter screen 6 helps to improve the separation efficiency and at the same time protects the subsequent equipment from contamination. The left end of the air extraction pipe 12 is fixedly connected with a second filter screen 11, whose function is to prevent external impurities or solid particles from being sucked into the system when negative pressure is generated, ensuring the cleanliness of the internal environment of the system and the normal operation of the equipment. The top of the collection cylinder 10 is in contact with the outer wall of the bottom of the collection cover 20, and the outer wall of the bottom of the nut 17 is in contact with the upper side outer wall of the handle 16. This layout allows the user to adjust the position of the nut 17 by rotating the handle 16, thereby adjusting the tightening degree of the rotating column 15 and ensuring the stability and reliability of the valve assembly. The bottom end of the rotating column 15 is rotatably connected to the inside of the discharge pipe 2, and the outer wall of the spherical door 18 is rotatably connected to the inner wall of the discharge pipe 2. This rotational connection method allows the spherical door 18 to rotate smoothly inside the discharge pipe 2 to effectively control the flow of materials, while maintaining good sealing performance and preventing material leakage. The lower side inner wall of the handle 16 is in contact with the top outer wall of the fixed block 14.

[0029] Working principle: First, the operator turns on the air pump 13 to evacuate the entire separation and sampling device, making the inside of the separation cylinder 4 and the collection cylinder 10 in a negative pressure state. At this time, by rotating the handle 16 to drive the spherical door 18 to rotate, its internal hollow opening is aligned with the internal cavity of the discharge pipe 2. At this time, due to the negative pressure of the air inside the separation and sampling assembly, the air in the raw material cylinder 1 carries the required sampling raw materials and enters the separation assembly through the discharge pipe 2 and the feed pipe 3. Through the action of the spiral track 7, the materials precipitate to the funnel 8 due to gravity and enter the collection cylinder 10 through the collection pipe 9, while the excess air rises and exits through the air outlet pipe 5. When the number of samples in the collection cylinder 10 reaches the target, rotate the handle 16 to close the valve, and at the same time turn off the air pump 13 to complete a sampling.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Suction type cyclone separation sampling device, comprising a raw material cylinder (1) and a collection cylinder (10), characterized in that: The outer wall of the middle part of the raw material cylinder (1) is fixedly connected with a discharge pipe (2), the other end of the discharge pipe (2) is fixedly connected with a feed pipe (3), the other end of the feed pipe (3) is fixedly connected with a separation cylinder (4), a separation cover (19) is arranged at the top of the separation cylinder (4), the separation cover (19) is fixedly connected with an air outlet pipe (5), a spiral track (7) is fixedly connected to the inner wall of the separation cylinder (4), a funnel (8) is fixedly connected to the bottom of the separation cylinder (4), a collecting pipe (9) is threadedly connected to the inner wall of the funnel (8), a collecting cover (20) is fixedly connected to the bottom of the collecting pipe (9), an air extraction pipe (12) is fixedly connected to the inside of the right side of the collecting cylinder (10), and an air pump (13) is fixedly connected to the right end of the air extraction pipe (12). A valve assembly is rotatably connected inside the discharge pipe (2).

2. The suction cyclone separation sampling device according to claim 1, wherein: The valve assembly includes a fixed block (14), a rotating column (15) is rotatably connected inside the fixed block (14), a spherical door (18) is fixedly connected to the bottom of the rotating column (15), a handle (16) is fixedly connected to the middle of the rotating column (15), and a nut (17) is rotatably connected to the top end of the rotating column (15).

3. The suction cyclone separation sampling device according to claim 1, characterized in that: A first filter screen (6) is fixedly connected to the inner wall of the bottom of the air outlet pipe (5), and a second filter screen (11) is fixedly connected to the left end of the air extraction pipe (12).

4. The suction cyclone separation sampling device according to claim 1, characterized in that: The top of the collecting cylinder (10) is in contact with the outer wall of the bottom of the collecting cover (20).

5. The suction cyclone separation sampling device according to claim 2, characterized in that: The outer wall of the bottom of the nut (17) is in contact with the upper outer wall of the handle (16), and the outer wall of the spherical door (18) is rotatably connected to the inner wall of the discharge pipe (2).

6. The aspirating cyclone separation sampling device according to claim 2, wherein: The bottom end of the rotating column (15) is rotatably connected inside the discharge pipe (2), and the lower inner wall of the handle (16) is in contact with the outer wall of the top of the fixed block (14).

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