Raymond mill with graded dust removal

Abstract

The utility model relates to Raymond machine dust removal technical field, and disclose a kind of Raymond machine with grading dust removal, including Raymond machine body, cyclone powder collector, cloth bag filter, air blower, the import of cloth bag filter is connected with first three-way pipe, the lower part of cyclone powder collector is equipped with dust extraction cover, the inner wall of cyclone powder collector is slidably installed with mounting plate, the lower part of mounting plate is equipped with filter cloth bag, the upper part of cyclone powder collector is connected with air outlet pipe, the outside of air outlet pipe is equipped with mounting frame, the inner wall of mounting frame is equipped with mounting groove, the inner wall of mounting groove is slidably installed with mounting bracket, the surface of mounting bracket is equipped with locating cylinder, air dust detector is installed in the inside of locating cylinder, the outside of cloth bag filter is fixedly installed with precision filter, to reach the dust of emission can be efficiently filtered, air quality is significantly improved, environmental pollution is reduced, equipment service life is lengthened, the stability and safety of production process are ensured.

Description

Technical Field

[0001] This utility model relates to the field of Raymond mill dust removal technology, specifically a Raymond mill with graded dust removal. Background Technology

[0002] The Raymond mill is a high-fineness powder processing device used in industries such as mining, chemical, and construction for processing over 280 kinds of materials. Its main structure consists of a main unit, analyzer, blower, finished product cyclone separator, micro-powder cyclone separator, and air ducts. The main unit comprises a frame, inlet volute, blades, grinding rollers, grinding ring, and casing. During operation, the material is first crushed to the required particle size by a jaw crusher, then conveyed to a storage hopper by an elevator. A feeder continuously and evenly feeds the material into the main unit's grinding chamber for grinding. The blower's airflow carries away dust, and powder of the appropriate fineness enters the upper part of the cyclone separator through pipes. The return air duct draws the powder into the blower, while excess exhaust gas is purified by a bag filter before being discharged.

[0003] However, under current technological conditions, the dust generated by Raymond mills is generally purified by bag filters before being discharged. However, the purification effect is limited, and the dust is discharged directly without testing, resulting in some dust not being completely purified and being directly discharged into the atmosphere, causing potential pollution to the environment and affecting air quality. Therefore, a Raymond mill with staged dust removal is proposed. Utility Model Content

[0004] (a) Technical problems to be solved This invention addresses the shortcomings of existing technologies by providing a Raymond mill with graded dust removal, which has the advantages of efficiently filtering emitted dust, significantly improving air quality, reducing environmental pollution, extending equipment lifespan, and ensuring the stability and safety of the production process, thus solving the problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, the following technical solution is provided: A Raymond mill with graded dust removal, comprising a Raymond mill body, a cyclone dust collector, a bag filter, and a blower. The inlet of the bag filter is connected to a first three-way pipe. A dust extraction hood is installed at the lower part of the cyclone dust collector. An installation plate is slidably installed on the inner wall of the bag filter. A filter bag is installed at the lower part of the installation plate. An air outlet pipe is connected to the upper part of the cyclone dust collector. An installation frame is installed on the outer side of the air outlet pipe. An installation groove is opened on the inner wall of the installation frame. An installation bracket is slidably installed on the inner wall of the installation groove. A positioning cylinder is opened on the surface of the installation bracket. An air dust detector is installed inside the positioning cylinder. A precision filter is fixedly installed on the outer side of the bag filter. A counterweight is installed at the lower part of the filter bag.

[0006] Preferably, the upper part of the Raymond mill body is connected to the first connecting pipe, the upper end of the first connecting pipe is connected to the outside of the cyclone dust collector, the upper part of the cyclone dust collector is connected to the second connecting pipe, the lower end of the second connecting pipe is connected to the inside of the blower, the outside of the blower is connected to the return air pipe, and the right end of the return air pipe is connected to the inside of the Raymond mill body.

[0007] Preferably, the front end of the first three-way pipe is connected to a first suction pipe, which is connected to a dust extraction hood; the lower end of the first three-way pipe is connected to a second suction pipe, which is connected to the inside of a return air pipe; and a first valve is installed on the outside of the first and second suction pipes.

[0008] Preferably, a second tee pipe is installed at the rear end of the air outlet pipe, the rear end of the second tee pipe is connected to a first air outlet pipe, the side end of the second tee pipe is connected to a second air outlet pipe, a second valve is installed on the outside of the first air outlet pipe and the second air outlet pipe, and the lower end of the second air outlet pipe is connected to the inside of the precision filter.

[0009] Preferably, a motor is fixedly installed on the outside of the bag filter, a rotating rod is rotatably installed inside the bag filter, an eccentric disc is fixedly installed on the outside of the rotating rod, and the output end of the motor is fixedly connected to the rear end of the rotating rod.

[0010] Preferably, the inner wall of the bag filter is provided with a groove, a slider is slidably installed on the inner wall of the groove, the slider is fixedly connected to the outer side of the mounting plate, and a spring is installed on the inner wall of the groove, with the lower end of the spring fixedly connected to the surface of the slider.

[0011] Preferably, a sealing plate is installed on the upper part of the mounting frame, and the sealing plate is fixed to the outside of the mounting frame by bolts, with a sealing gasket between the sealing plate and the mounting frame.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a Raymond mill with graded dust removal, which has the following beneficial effects: 1. This Raymond mill with graded dust removal system, through the arrangement of the Raymond mill body, cyclone dust collector, bag filter, first connecting pipe, second connecting pipe, blower, return air pipe, first tee pipe, dust extraction hood, mounting plate, filter bag, air outlet pipe, mounting frame, mounting groove, mounting bracket, positioning cylinder, air dust detector, second tee pipe, and precision filter, achieves efficient filtration of emitted dust, significantly improving air quality, reducing environmental pollution, extending equipment service life, and ensuring the stability and safety of the production process.

[0013] 2. This Raymond mill with graded dust removal, through the setting of motor, rotating rod, eccentric disc, slider, spring, and counterweight, can effectively clean the dust at the bottom of the filter bag, solving the problem that pulse blowing cannot completely clean the dust at the bottom, improving the dust removal effect, extending the service life of the filter bag, and further ensuring the stable operation of the equipment and the continuous cleanliness of the environment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rear structure of the present invention; Figure 3 This is a cross-sectional view of the bag filter of this utility model.

[0015] In the diagram: 1. Raymond mill body; 2. Cyclone dust collector; 3. Bag filter; 4. First connecting pipe; 5. Second connecting pipe; 6. Blower; 7. Return air duct; 8. First tee pipe; 9. Dust extraction hood; 10. Mounting plate; 11. Filter bag; 12. Exhaust duct; 13. Mounting frame; 14. Mounting slot; 15. Mounting bracket; 16. Positioning cylinder; 17. Air dust detector; 18. Motor; 19. Rotating rod; 20. Eccentric disc; 21. Slider; 22. Spring; 23. Counterweight; 24. Second tee pipe; 25. Precision filter. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments. Obviously, the described embodiments are only some embodiments, not all embodiments. Based on the embodiments described, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0017] Example 1: Please see Figure 1-3 The system includes a Raymond mill body 1, a cyclone dust collector 2, a bag filter 3, and a blower 6. The inlet of the bag filter 3 is connected to a first three-way pipe 8. A dust extraction hood 9 is installed at the lower part of the cyclone dust collector 2. An installation plate 10 is slidably installed on the inner wall of the bag filter 3. A filter bag 11 is installed at the lower part of the installation plate 10. An air outlet pipe 12 is connected to the upper part of the cyclone dust collector 2. An installation frame 13 is installed on the outer side of the air outlet pipe 12. An installation groove 14 is opened on the inner wall of the installation frame 13. An installation bracket 15 is slidably installed on the inner wall of the installation groove 14. A positioning cylinder 16 is opened on the surface of the installation bracket 15. An air dust detector 17 is installed inside the positioning cylinder 16. A precision filter 25 is fixedly installed on the outer side of the bag filter 3. A counterweight 23 is installed at the lower part of the filter bag 11.

[0018] Specifically, the Raymond mill body 1 grinds and crushes the material, and then the cyclone dust collector 2 performs preliminary separation. The fine powder after grinding is carried away by the negative pressure airflow generated by the fan below the main unit (the airflow enters from the bottom of the main unit and flows upward), and enters the analyzer located above the main unit. Fine powder that meets the particle size requirements enters the cyclone separator with the airflow. The separated airflow (containing a small amount of dust) returns to the blower 6 through the pipeline, forming a cycle (reducing energy consumption). Some of the excess exhaust gas is purified by the bag filter 3 and the precision filter before being discharged to avoid pollution. An alarm is installed in the air dust detector 17. Preferably, the upper part of the Raymond mill body 1 is connected to a first connecting pipe 4, the upper end of the first connecting pipe 4 is connected to the outside of the cyclone dust collector 2, the upper part of the cyclone dust collector 2 is connected to a second connecting pipe 5, the lower end of the second connecting pipe 5 is connected to the inside of the blower 6, the outside of the blower 6 is connected to a return air pipe 7, and the right end of the return air pipe 7 is connected to the inside of the Raymond mill body 1.

[0019] Specifically, fine powder enters the cyclone dust collector 2 through the first connecting pipe 4. After preliminary separation, fine powder that meets the particle size requirements enters the blower 6 through the second connecting pipe 5 with the airflow, and then returns to the Raymond machine body 1 through the return air pipe 7, forming a closed loop.

[0020] Preferably, the front end of the first three-way pipe 8 is connected to a first suction pipe, which is connected to the dust extraction hood 9. The lower end of the first three-way pipe 8 is connected to a second suction pipe, which is connected to the return air pipe 7. A first valve is installed on the outside of the first suction pipe and the second suction pipe.

[0021] Specifically, the first valves on the first and second suction pipes can be controlled independently, which can control the suction power of the dust extraction hood 9 and adjust the airflow in the return air duct 7 to ensure airflow balance in the system.

[0022] Preferably, a second three-way pipe 24 is installed at the rear end of the air outlet pipe 12, the rear end of the second three-way pipe 24 is connected to a first air outlet pipe, the side end of the second three-way pipe 24 is connected to a second air outlet pipe, and the lower end of the second air outlet pipe is connected to the interior of the precision filter 25.

[0023] Specifically, the second valves on the first and second vent pipes can be adjusted independently.

[0024] Preferably, a sealing plate is installed on the upper part of the mounting bracket 15. The sealing plate is fixedly installed on the outside of the mounting frame 13 by bolts, and a sealing gasket is provided between the sealing plate and the mounting frame 13.

[0025] Specifically, the sealing gasket is made of high-temperature resistant material to ensure good sealing performance even in high-temperature environments. The mounting bracket 15 can be easily disassembled by bolt installation, and then the air dust detector 17 can be taken out from the positioning cylinder 16.

[0026] Working principle: After the material is ground by the Raymond mill body 1, the fine powder enters the cyclone dust collector 2 with the airflow for initial separation. The qualified fine powder enters the blower 6 through the second connecting pipe 5 and returns to the Raymond mill body 1 through the return air pipe 7. The excess exhaust gas is purified by the bag filter 3 and the precision filter 25 before being discharged, ensuring environmental protection and high efficiency. When the first valve on the second suction pipe is opened, the dust can be directly drawn into the bag filter 3. The dust is efficiently intercepted by the filter bag 11 in the bag filter 3. Then the filtered gas will be discharged through the air outlet pipe 12. At this time, the air dust detector 17 in the air outlet pipe 12 monitors the dust concentration in real time. When the dust concentration exceeds the standard, the system automatically starts the alarm and adjusts the airflow through the first valve to open the second air outlet pipe, so that the air enters the precision filter 25 for secondary purification to ensure that the emission meets the standards. Meanwhile, when the cyclone dust collector is discharging material, the first suction pipe can be opened, so that the dust hood 9 can effectively absorb the dust at the discharge port, prevent dust from overflowing, and ensure a clean working environment. This design not only improves system operating efficiency but also significantly reduces dust pollution, ensuring the safety and health of operators. Simultaneously, equipment maintenance and repair become more convenient, extending equipment lifespan and saving costs for businesses.

[0027] Example 2: Please see Figure 1-3 A motor 18 is fixedly installed on the outside of the bag filter 3, and a rotating rod 19 is rotatably installed inside the bag filter 3. An eccentric disc 20 is fixedly installed on the outside of the rotating rod 19. The output end of the motor 18 is fixedly connected to the rear end of the rotating rod 19.

[0028] Specifically, the motor 18 can drive the rotating rod 19 to rotate. The rotating rod 19 is located directly below the mounting plate 10. The eccentric disk 20 is symmetrically arranged so that the eccentric disk 20 generates centrifugal force when rotating, which drives the filter bag 11 inside the bag filter 3 to vibrate.

[0029] Preferably, the inner wall of the bag filter 3 is provided with a sliding groove, and a slider 21 is slidably installed on the inner wall of the sliding groove. The slider 21 is fixedly connected to the outer side of the mounting plate 10. A spring 22 is installed on the inner wall of the sliding groove, and the lower end of the spring 22 is connected to the surface of the slider 21.

[0030] Specifically, the elastic force of spring 22 keeps slider 21 pressed tightly against the inner wall of the groove, ensuring that slider 21 can slide stably when rotating rod 19 drives eccentric disk 20 to vibrate, thus avoiding equipment damage due to excessive vibration. Working principle: During cleaning, in conjunction with the pulse cleaning system, the motor 18 drives the rotating rod 19 and the eccentric disc 20 to generate centrifugal force. The eccentric disc then presses against the lower part of the mounting plate 10. After being pressed, the mounting plate 10 moves upward, and the slider 21 slides upward along the groove. The slider 21 presses against the spring 22, which deforms under pressure, accumulates elastic potential energy, and then releases it, pushing the slider 21 to quickly return to its original position. This causes the mounting plate 10 and the filter bag 11 to generate high-frequency vibration. Combined with the counterweight block 23 at the bottom of the filter bag 11, the filter bag 11 falls faster and vibrates more, effectively cleaning the dust at the bottom of the filter bag 11. This solves the problem that pulse blowing cannot completely clean the dust at the bottom, improves the cleaning effect, extends the service life of the filter bag 11, and further ensures the stable operation of the equipment and the continuous cleanliness of the environment.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A Raymond mill with graded dust removal, comprising a Raymond mill body (1), a cyclone dust collector (2), a bag filter (3), and a blower (6), characterized in that: The inlet of the bag filter (3) is connected to a first three-way pipe (8). A dust extraction hood (9) is installed at the lower part of the cyclone dust collector (2). An installation plate (10) is slidably installed on the inner wall of the bag filter (3). A filter bag (11) is installed at the lower part of the installation plate (10). An air outlet pipe (12) is connected to the upper part of the cyclone dust collector (2). An installation frame (13) is installed on the outer side of the air outlet pipe (12). An installation groove (14) is opened on the inner wall of the installation frame (13). An installation bracket (15) is slidably installed on the inner wall of the installation groove (14). A positioning cylinder (16) is opened on the surface of the installation bracket (15). An air dust detector (17) is installed inside the positioning cylinder (16). A precision filter (25) is fixedly installed on the outer side of the bag filter (3). A counterweight (23) is installed at the lower part of the filter bag (11).

2. A Raymond mill with graded dust removal according to claim 1, characterized in that: The upper part of the Raymond machine body (1) is connected to a first connecting pipe (4), the upper end of the first connecting pipe (4) is connected to the outside of the cyclone dust collector (2), the upper part of the cyclone dust collector (2) is connected to a second connecting pipe (5), the lower end of the second connecting pipe (5) is connected to the inside of the blower (6), the outside of the blower (6) is connected to a return air pipe (7), and the right end of the return air pipe (7) is connected to the inside of the Raymond machine body (1).

3. A Raymond mill with graded dust removal according to claim 1, characterized in that: The front end of the first three-way pipe (8) is connected to a first suction pipe, which is connected to a dust extraction hood (9). The lower end of the first three-way pipe (8) is connected to a second suction pipe, which is connected to the return air pipe (7). A first valve is installed on the outside of the first suction pipe and the second suction pipe.

4. A Raymond mill with graded dust removal according to claim 1, characterized in that: The rear end of the air outlet pipe (12) is equipped with a second three-way pipe (24), the rear end of the second three-way pipe (24) is connected to a first air outlet pipe, the side end of the second three-way pipe (24) is connected to a second air outlet pipe, a second valve is installed on the outside of the first air outlet pipe and the second air outlet pipe, and the lower end of the second air outlet pipe is connected to the inside of the precision filter (25).

5. A Raymond mill with graded dust removal according to claim 1, characterized in that: A motor (18) is fixedly installed on the outside of the bag filter (3), and a rotating rod (19) is rotatably installed inside the bag filter (3). An eccentric disc (20) is fixedly installed on the outside of the rotating rod (19). The output end of the motor (18) is fixedly connected to the rear end of the rotating rod (19).

6. A Raymond mill with graded dust removal according to claim 1, characterized in that: The inner wall of the bag filter (3) is provided with a sliding groove, and a slider (21) is slidably installed on the inner wall of the sliding groove. The slider (21) is fixedly connected to the outer side of the mounting plate (10). A spring (22) is installed on the inner wall of the sliding groove, and the lower end of the spring (22) is connected to the surface of the slider (21).

7. A Raymond mill with graded dust removal according to claim 1, characterized in that: A sealing plate is installed on the upper part of the mounting bracket (15). The sealing plate is fixed to the outside of the mounting frame (13) by bolts. A sealing gasket is provided between the sealing plate and the mounting frame (13).

Images