Fixed full-automatic pulverized coal sampler

Abstract

The utility model discloses a fixed full-automatic pulverized coal sampler which comprises a box body, a partition plate is fixedly mounted in the box body, a placement groove is formed in the partition plate, a through groove is formed in the placement groove of the partition plate, a fixing strip is movably sleeved with the through groove, one side of the fixing strip is fixedly connected with a filter screen, and the other side of the fixing strip is fixedly connected with a dust collector. And a wind chamber is fixedly installed at the upper end of the partition plate, an air outlet is fixedly formed in the upper end of the wind chamber, a turbine is movably sleeved with the wind chamber, and an adapter is movably sleeved with the sealing block. Through the above structure and the standardized design of the filter screen, the cost of spare parts can be reduced, the universality can be improved, sampling errors or equipment faults caused by blockage of the filter screen are avoided through a rapid replacement mechanism, the data accuracy is ensured, the requirement for extra cleaning equipment is reduced, the system complexity is reduced, high-pressure airflow reversely washes the surface of the filter screen, accumulated coal powder is automatically removed, and the working efficiency is improved. The problem that a traditional filter screen is easily blocked is solved.

Description

A fixed fully automatic coal powder sampler Technical Field

[0001] This utility model relates to the technical field of coal powder samplers, and in particular to a fixed fully automatic coal powder sampler. Background Technology

[0002] The fixed fully automatic coal powder sampler is an automated device used in high-dust industrial environments such as coal-fired power plants, cement plants, and metallurgy. It is mainly used to continuously and accurately collect coal powder samples for component analysis, combustion efficiency monitoring, or environmental emission control.

[0003] CN219084474U discloses a fixed fully automatic pulverized coal sampler. The sampling tube is arranged inside the pulverized coal pipeline. During sampling, the sampling tube (arm) is extended by a rotating cylinder. The sampling nozzle on the sampling tube faces the pulverized coal flow in the pulverized coal pipeline. When compressed air passes through the jet ejector from the exhaust pipe, its jet action causes the gas-powder mixture in the pulverized coal pipeline to enter the sampling device along the sampling tube. The gas-powder mixture undergoes solid-gas separation in the cyclone separator. The separated pulverized coal falls into the sampling bottle below the cyclone separator. The exhaust gas is sent back to the pulverized coal pipeline through the exhaust pipe under the ejection action of the compressed air guide. After sampling, the sampling tube is folded up and close to the inner wall of the pipeline, which can reduce pulverized coal erosion and wear. The entire operation process does not produce pollution to the workplace. The sampling nozzles are arranged according to the principle of equal cross-section. There are a total of 4 sampling nozzles arranged on the sampling tube, thereby achieving the technical effect of ensuring that the sampling is sufficiently representative.

[0004] In industries such as coal-fired power plants, cement, and metallurgy, the sampling and analysis of pulverized coal is crucial for combustion efficiency, equipment safety, and environmental emissions. However, traditional pulverized coal samplers suffer from the problem that pulverized coal particles tend to accumulate on the surface of the filter screen, leading to a decrease in sampling efficiency. This necessitates frequent shutdowns for cleaning or replacement. Replacing the filter screen usually requires disassembling the outer casing or using specialized tools, which is time-consuming and labor-intensive, impacting production efficiency. Clogged filter screens may result in insufficient sample volume or compositional deviations, affecting combustion optimization and emission monitoring. Relying on manual tapping or high-pressure gas injection can easily damage the filter screen and pose safety hazards. Summary of the Invention

[0005] The purpose of this invention is to provide a fixed fully automatic coal powder sampler with a quick replacement mechanism that avoids sampling errors or equipment failures caused by filter clogging, ensures data accuracy, reduces the need for additional cleaning equipment, and lowers system complexity. High-pressure airflow reverses the flow of the filter surface to automatically remove accumulated coal powder, thus solving the problem of easy clogging of traditional filters.

[0006] To achieve the above objectives, a fixed fully automatic coal powder sampler is provided, comprising a housing, a partition fixedly installed inside the housing, a placement groove inside the partition, a through groove inside the placement groove, a fixing strip movably fitted inside the through groove, a filter screen fixedly connected to one side of the fixing strip, an exhaust box fixedly installed at the upper end of the partition, an air outlet fixedly installed at the upper end of the exhaust box, a turbine movably fitted inside the exhaust box, a baffle fixedly installed on one side of the exhaust box, a T-junction pipe fixedly installed on one side of the baffle, a sealing block fixedly installed inside the T-junction pipe, a converter movably fitted inside the sealing block, and a blower box fixedly installed on the other side of the T-junction pipe.

[0007] According to the aforementioned fixed fully automatic coal powder sampler, a No. 3 motor is fixedly connected to the other side of the turbine, the baffle is connected to the exhaust box, and the air outlet is connected to the inside of the exhaust box.

[0008] According to the aforementioned fixed fully automatic coal powder sampler, the three-way pipe has a three-way structure, including a first port, a second port, and a third port. The first port and the second port are used to connect to the main pipe, and the third port serves as a branch pipe interface. The first port of the three-way pipe can communicate with the inside of the filter screen, the second port of the three-way pipe can communicate with the inside of the exhaust box, and the third port of the three-way pipe can communicate with the inside of the blower box.

[0009] According to the aforementioned fixed fully automatic coal powder sampler, the adapter can connect the first port and the second port, a rotating shaft is fixedly connected to one side of the adapter, and a second motor is fixedly connected to the other side of the rotating shaft.

[0010] According to the aforementioned fixed fully automatic coal powder sampler, an air inlet pipe is fixedly installed on one side of the housing, an air inlet is fixedly connected to the other side of the air inlet pipe, a fixed column is fixedly connected inside the air inlet pipe, a movable strip is movably fitted on the other side of the fixed column, a spring is fixedly installed between the movable strip and the air inlet pipe, and a stop block is fixedly connected inside the air inlet pipe.

[0011] According to the aforementioned fixed fully automatic coal powder sampler, a No. 3 motor is fixedly connected to the other side of the exhaust box, and a No. 1 motor is fixedly connected to the lower end of the blower box.

[0012] According to the aforementioned fixed fully automatic coal powder sampler, an air inlet and an air outlet are fixedly connected to the upper end of the housing, a detection panel is fixedly installed on one side of the housing, a base is fixedly connected to the lower end of the housing, a funnel is fixedly installed inside the housing, and a collection box is movably fitted inside the housing.

[0013] Beneficial effects:

[0014] 1. The housing is equipped with a fixed partition, which has a placement slot. The placement slot has a through groove, and a fixing strip is movably fitted inside the through groove. A filter screen is fixedly connected to one side of the fixing strip. Replacing the filter screen of a traditional coal powder sampler usually requires stopping the machine, disassembling the outer shell, and even special tools, which is time-consuming. The standardized design of the filter screen can reduce spare parts costs, improve versatility, and the quick replacement mechanism avoids sampling errors or equipment failures caused by filter screen blockage, ensuring data accuracy.

[0015] 2. An exhaust box is fixedly installed at the upper end of the partition, and an air outlet is fixedly installed at the upper end of the exhaust box. A turbine is movably fitted inside the exhaust box. A baffle is fixedly installed on one side of the exhaust box, and a T-shaped pipe is fixedly installed on the other side of the baffle. A sealing block is fixedly installed inside the T-shaped pipe, and an adapter is movably fitted inside the sealing block. A blower box is fixedly installed on the other side of the T-shaped pipe. The adapter enables quick switching between the exhaust port and the air inlet, allowing the same pipeline system to complete both coal powder sampling and reverse blowing cleaning. Compared with traditional single-function samplers, this reduces the need for additional cleaning equipment and lowers system complexity. High-pressure airflow reverse-flushes the filter screen surface, automatically removing accumulated coal powder and solving the problem of easy clogging of traditional filters.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 is a perspective view of a fixed fully automatic coal powder sampler proposed in this utility model;

[0019] Figure 2 is a cross-sectional view of a fixed fully automatic coal powder sampler proposed in this utility model;

[0020] Figure 3 is a cross-sectional view of a fixed fully automatic coal powder sampler tee pipe proposed in this utility model;

[0021] Figure 4 is a perspective view of the exhaust box of a fixed fully automatic coal powder sampler proposed in this utility model.

[0022] Figure 5 is a perspective view of a fixed fully automatic coal powder sampler partition proposed in this utility model.

[0023] Legend:

[0024] 1. Air inlet; 2. Detection panel; 3. Base; 4. Collection box; 5. Box body; 6. Partition; 7. Air inlet; 8. Spring; 9. Movable strip; 10. Stop block; 11. Air inlet duct; 12. Funnel; 13. Filter screen; 14. Fixing column; 15. Exhaust box; 16. Motor 1; 17. Air outlet; 18. Motor 2; 19. Rotating shaft; 20. Blower box; 21. Motor 3; 22. T-junction duct; 23. Adapter; 24. Sealing block; 25. Baffle; 26. Turbine; 27. Through groove; 28. Fixing strip. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Referring to Figures 1-5, an embodiment of this utility model discloses a fixed fully automatic coal powder sampler, which includes a housing 5. A partition 6 is fixedly installed inside the housing 5. A placement groove is opened inside the partition 6. A through groove 27 is opened inside the placement groove of the partition 6. A fixing strip 28 is movably fitted inside the through groove 27. A filter screen 13 is fixedly connected to one side of the fixing strip 28. An exhaust box 15 is fixedly installed at the upper end of the partition 6. An air outlet 17 is fixedly installed at the upper end of the exhaust box 15. A turbine 26 is movably fitted inside the exhaust box 15. A baffle 25 is fixedly installed on one side of the exhaust box 15. A three-way pipe 22 is fixedly installed on one side of the baffle 25. A sealing block 24 is fixedly installed inside the three-way pipe 22. An adapter 23 is movably fitted inside the sealing block 24. A blower box 20 is fixedly installed on the other side of the three-way pipe 22.

[0027] Specifically: the partition 6 can isolate the internal coal powder, the rotating filter screen 13 makes the fixing strip 28 match and engage with the through groove 27 to achieve a fixed effect, the turbine 26 inside the exhaust box 15 rotates to extract the filtered gas inside the three-way pipe 22, the baffle 25 plays a sealing role, in order for the turbine 26 to work better, the air outlet 17 can discharge the extracted gas, the three-way pipe 22 can connect the three channels, the sealing block 24 can seal the gap between the adapter 23 and the three-way pipe 22, and the adapter 23 can connect two of the ports of the three-way pipe 22.

[0028] The turbine 26 is fixedly connected to the third motor 21 on the other side. The baffle 25 is connected to the exhaust box 15, and the air outlet 17 is connected to the inside of the exhaust box 15.

[0029] Specifically: the output of motor 21 can provide rotation to turbine 26, baffle 25 can seal the exhaust box 15, and air outlet 17 can discharge the extracted gas.

[0030] The three-way pipe 22 has a three-way structure, including a first port, a second port and a third port. The first port and the second port are used to connect to the main pipe, and the third port is used as a branch pipe interface. The first port of the three-way pipe 22 can communicate with the inside of the filter screen 13, the second port of the three-way pipe 22 can communicate with the inside of the exhaust box 15, and the third port of the three-way pipe 22 can communicate with the inside of the blower box 20.

[0031] Specifically: the first port of the three-way pipe 22 is connected to the inside of the filter screen 13 for air extraction or exhaust, the second port of the three-way pipe 22 is connected to the exhaust box 15 for exhaust, and the third port of the three-way pipe 22 is connected to the blower box 20 for air intake.

[0032] The adapter 23 can connect the first port and the second port. A rotating shaft 19 is fixedly connected to one side of the adapter 23, and a second motor 18 is fixedly connected to the other side of the rotating shaft 19.

[0033] Specifically: The output end of motor 18 is connected to shaft 19 to provide rotation, and the rotation of shaft 19 drives the rotating interface 23 to rotate.

[0034] An air inlet duct 11 is fixedly installed on one side of the housing 5, and an air inlet 1 is fixedly connected to the other side of the air inlet duct 11. A fixed column 14 is fixedly connected inside the air inlet duct 11, and a movable strip 9 is movably fitted on the other side of the fixed column 14. A spring 8 is fixedly installed between the movable strip 9 and the air inlet duct 11, and a stop block 10 is fixedly connected inside the air inlet duct 11.

[0035] Specifically: the air inlet duct 11 and the air inlet 1 work together to feed pulverized coal, the fixed column 14 fixes the movable bar 9 to one side of the air inlet duct 11, the spring 8 provides tension to the movable bar 9, and the stop block 10 can restrict the movement of the movable bar 9.

[0036] A No. 3 motor 21 is fixedly connected to the other side of the exhaust box 15, and a No. 1 motor 16 is fixedly connected to the lower end of the blower box 20.

[0037] Specifically: the output of motor 21 is connected to the inside of the exhaust box 15 to provide output, and the output of motor 16 is connected to the inside of the blower box 20 to provide output.

[0038] An air inlet 7 and an air outlet 17 are fixedly connected to the upper end of the box 5. A detection panel 2 is fixedly installed on one side of the box 5. A base 3 is fixedly connected to the lower end of the box 5. A funnel 12 is fixedly installed inside the box 5. A collection box 4 is movably fitted inside the box 5.

[0039] Specifically: the air inlet 7 provides air intake for the blower box 20, the air outlet 17 discharges the gas inside the exhaust box 15, the funnel 12 can collect the coal dust inside, and the collection box 4 can collect the coal dust inside.

[0040] Working principle: When testing is required, motor 21 is started via detection panel 2. Motor 21 rotates, causing turbine 26 to start working, drawing the coal powder sample into chamber 5 through inlet pipe 11 for testing. During testing, exhaust box 15 continues to extract coal powder from inside chamber 5. The coal powder is filtered through filter screen 13 and enters the first port of three-way pipe 22. After passing through adapter 23, it reaches the second port of three-way pipe 22 and enters the exhaust box 15 through the second port, exiting from outlet 17. When filter screen 13 becomes clogged, motor 21 is shut off via detection panel 2, controlling the second... Motor 18 starts working, causing the adapter 23 connected to it to rotate, connecting the third port of the three-way pipe 22 to the first port of the three-way pipe 22. This controls motor 16 to start working, causing the blower box 20 to blow air onto the third port of the three-way pipe 22. The air enters the filter screen 13 through the three-way pipe 22, blowing down coal dust and achieving the function of dust removal. The coal dust will fall into the collection box 4 at the lower end. The movable strip 9 will restrict the backflow of coal dust inside the box 5. The fixing strip 28 can be passed through the through groove 27 and the filter screen 13 can be rotated to achieve a quick fixing effect. Rotating the filter screen 13 in the opposite direction can achieve a quick disassembly effect.

[0041] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A fixed fully automatic coal powder sampler, comprising a housing (5), characterized in that: The box (5) is fixedly installed with a partition (6). The partition (6) has a placement groove. The partition (6) has a through groove (27). The through groove (27) is fitted with a fixing strip (28). A filter screen (13) is fixedly connected to one side of the fixing strip (28). An exhaust box (15) is fixedly installed at the upper end of the partition (6). An air outlet (17) is fixedly installed at the upper end of the exhaust box (15). A turbine (26) is fitted inside the exhaust box (15). A baffle (25) is fixedly installed on one side of the exhaust box (15). A three-way pipe (22) is fixedly installed on one side of the baffle (25). A sealing block (24) is fixedly installed inside the three-way pipe (22). An adapter (23) is fitted inside the sealing block (24). A blower box (20) is fixedly installed on the other side of the three-way pipe (22).

2. The fixed fully automatic coal powder sampler according to claim 1, characterized in that, A No. 3 motor (21) is fixedly connected to the other side of the turbine (26), the baffle (25) is connected to the exhaust box (15), and the air outlet (17) is connected to the inside of the exhaust box (15).

3. A fixed fully automatic coal powder sampler according to claim 1, characterized in that, The three-way pipe (22) has a three-way structure and includes a first port, a second port and a third port. The first port and the second port are used to connect to the main pipe, and the third port is used as a branch pipe interface. The first port of the three-way pipe (22) can communicate with the inside of the filter screen (13), the second port of the three-way pipe (22) can communicate with the inside of the exhaust box (15), and the third port of the three-way pipe (22) can communicate with the inside of the blower box (20).

4. A fixed fully automatic coal powder sampler according to claim 1, characterized in that, The adapter (23) can connect the first port and the second port. A rotating shaft (19) is fixedly connected to one side of the adapter (23), and a second motor (18) is fixedly connected to the other side of the rotating shaft (19).

5. A fixed fully automatic coal powder sampler according to claim 1, characterized in that, An air inlet pipe (11) is fixedly installed on one side of the housing (5), and an air inlet (1) is fixedly connected to the other side of the air inlet pipe (11). A fixed column (14) is fixedly connected inside the air inlet pipe (11), and a movable strip (9) is movably fitted on the other side of the fixed column (14). A spring (8) is fixedly installed between the movable strip (9) and the air inlet pipe (11), and a stop block (10) is fixedly connected inside the air inlet pipe (11).

6. A fixed fully automatic coal powder sampler according to claim 1, characterized in that, The exhaust box (15) is fixedly connected to a No. 3 motor (21) on the other side, and the blower box (20) is fixedly connected to a No. 1 motor (16) at the lower end.

7. A fixed fully automatic coal powder sampler according to claim 1, characterized in that, An air inlet (7) and an air outlet (17) are fixedly connected to the upper end of the box (5). A detection panel (2) is fixedly installed on one side of the box (5). A base (3) is fixedly connected to the lower end of the box (5). A funnel (12) is fixedly installed inside the box (5). A collection box (4) is movably fitted inside the box (5).

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