Fly ash pretreatment device for cement composite material production

Abstract

The utility model relates to the technical field of fly ash processing, and discloses a fly ash pretreatment device for cement composite material production, which comprises a casing, a collecting drawer is slidably connected to the inner bottom wall of the casing, a grinding component is arranged in the casing, a shaking screening component is arranged in the casing, and the grinding component and the shaking screening component are arranged in the casing. A circulating grinding assembly is arranged on the outer side of the machine shell, a dust suction assembly is arranged on the outer side of the machine shell and comprises a collecting box, the outer side of the collecting box is fixedly connected to the outer side of the machine shell, and a suction pipe is fixedly connected to the top of the collecting box. According to the utility model, when the collection drawer is taken out, the fan is started to collect dust, the dust is intercepted into the dust collection drawer through the filter screen, when the filter screen is replaced, the handle is pulled out of the insertion block, the hand is loosened after replacement, and the insertion block is reset, so that the dust collection when the collection drawer is taken out is realized, the dust is prevented from escaping to pollute the environment and being inhaled by workers, and the health of the workers is ensured not to be harmed; meanwhile, the filter screen is convenient to replace, and continuous and effective work of the fan is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fly ash processing technology, and in particular to a fly ash pretreatment device for the production of cement composite materials. Background Technology

[0002] Fly ash is an important raw material in the production of cement composite materials. It is a fine powdery residue produced by coal combustion in coal-fired power plants and other applications. Its particles are small, spherical, and rich in silicon and aluminum oxides. Adding an appropriate amount of fly ash to cement can improve workability, reduce heat of hydration, enhance durability, effectively improve the performance of cement composite materials, and reduce costs.

[0003] In existing technologies, fly ash pretreatment devices used in the production of cement composite materials often lack effective dust collection measures when the collection tray is removed, resulting in the dust spreading freely, seriously polluting the surrounding environment, and being easily inhaled by workers, which greatly endangers their health. At the same time, the filter screen is often fixed with bolts, making the replacement process cumbersome and complicated, and making it difficult to ensure the continuous and efficient operation of the fan.

[0004] To address the above issues, a fly ash pretreatment device for cement composite material production is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fly ash pretreatment device for cement composite material production. It aims to improve the existing fly ash pretreatment devices for cement composite material production, which often lack effective dust collection measures when the collection tray is removed, resulting in the dust spreading freely, seriously polluting the surrounding environment, and being easily inhaled by workers, which greatly endangers their health. At the same time, the filter screen is often fixed with bolts, making the replacement process cumbersome and complicated, and making it difficult to ensure the continuous and efficient operation of the fan.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a fly ash pretreatment device for cement composite material production, comprising a casing, a collection tray slidably connected to the bottom wall of the casing, a grinding component inside the casing, a shaking screening component inside the casing, a circulating grinding component outside the casing, and a dust collection component outside the casing.

[0007] The vacuuming assembly includes a collection box, which is fixedly connected to the outside of the housing. A suction tube is fixedly connected to the top of the collection box. A dust collection tray is slidably connected to the lower inside of the collection box. A fan is installed on the inner wall of the collection box. A filter screen is slidably connected inside the collection box. A connecting block is fixedly connected inside the collection box. Two baffles are slidably connected to the inner wall of the connecting block. A spring is fixedly connected to one side of each baffle. A plug-in block is fixedly connected to the other end of each baffle. A handle is fixedly connected to the top of each baffle.

[0008] As a further description of the above technical solution:

[0009] The grinding assembly includes a motor and two grinding rollers. The motor is fixedly connected to the outside of the housing, and the grinding rollers are rotatably connected to the inside of the housing. Gears are fixedly connected to the ends of the two grinding rollers away from the motor, and the two gears are meshed together. A pulley is fixedly connected to the end of the left grinding roller away from the gear.

[0010] As a further description of the above technical solution:

[0011] The vibrating screening assembly includes a screening screen and a rotating rod. One side of the screening screen is rotatably connected to the inner wall of the machine housing, and the bottom of the other side of the screening screen is fixedly connected to multiple springs. The bottom end of each spring is fixedly connected to a fixing block, and the outer side of the fixing block is fixedly connected to the inside of the machine housing. The outer side of the rotating rod is rotatably connected to the inside of the machine housing. One end of the rotating rod is fixedly connected to a pulley, and the other end of the rotating rod is fixedly connected to a cam. The cam abuts against the screening screen, and the pulley is connected to the pulley by a belt.

[0012] As a further description of the above technical solution:

[0013] The circulating grinding assembly includes a support block, the outer side of which is fixedly connected to the outer side of the machine casing. The top of the support block is fixedly connected to an outer shell, and the top of the outer shell is fixedly connected to a second motor. The output end of the second motor is fixedly connected to an auger shaft, and spiral blades are fixedly connected to the outer side of the auger shaft. The lower part of the outer side of the outer shell is fixedly connected to a discharge port, and the upper part of the outer side of the outer shell is fixedly connected to a second feed port.

[0014] As a further description of the above technical solution:

[0015] The outer side of the plug block is slidably connected to the inside of the connecting block, the outer side of the plug block is inserted into the inside of the filter screen, and the end of the suction tube away from the collection box is fixedly connected to the lower part of the outer side of the casing.

[0016] As a further description of the above technical solution:

[0017] The end of the second spring away from the baffle is fixedly connected to the inner wall of the connecting block, and the outer side of the handle is slidably connected to the outer side of the connecting block.

[0018] As a further description of the above technical solution:

[0019] A feed inlet is fixedly connected to the top of the machine casing, and a valve is provided on the outside of the feed inlet.

[0020] As a further description of the above technical solution:

[0021] The outer side of the discharge port is fixedly connected to the lower part of the outer side of the machine casing, and the outer side of the second feed port is fixedly connected to the upper part of the outer side of the machine casing.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, when the collection tray is removed, the fan starts to suck up dust, and the dust is intercepted by the filter screen and enters the dust collection tray. When the filter screen is replaced, the pull handle is pulled out to insert the plug block. After replacement, the handle is released and the plug block is reset. This realizes the collection of dust when the collection tray is removed, avoiding dust from escaping and polluting the environment, as well as being inhaled by the staff, ensuring that the health of the staff is not harmed. At the same time, the filter screen is easy to replace, ensuring the continuous and effective operation of the fan.

[0024] 2. In this utility model, the ground fly ash falls onto the screening screen and is shaken and screened under the action of the cam, spring one, and fixed block. Qualified particles fall into the collection drawer, while large particles enter the circulating grinding component through the feed inlet two and are sent back to the machine casing for reprocessing by the auger shaft driven by motor two. This realizes the effective classification and screening of fly ash, collecting those that meet the particle size requirements and reprocessing those that do not, thereby improving the uniformity of fly ash particle size and the pretreatment effect. Attached Figure Description

[0025] Figure 1 This is a perspective view of the fly ash pretreatment device for cement composite material production proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the gear structure of the fly ash pretreatment device for cement composite material production proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the cam structure of the fly ash pretreatment device for cement composite material production proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the filter screen of the fly ash pretreatment device for cement composite material production proposed in this utility model;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Machine casing; 2. Feed inlet 1; 3. Valve; 4. Motor 1; 5. Grinding roller; 6. Pulley 1; 7. Pulley 2; 8. Rotating rod; 9. Cam; 10. Screening filter; 11. Spring 1; 12. Fixing block; 13. Collection drawer; 14. Support block; 15. Discharge port; 16. Outer casing; 17. Motor 2; 18. Screw shaft; 19. Spiral blade; 20. Feed inlet 2; 21. Gear; 22. Filter screen; 23. Fan; 24. Dust collection drawer; 25. Connecting block; 26. Spring 2; 27. Baffle; 28. Insertion block; 29. ​​Handle; 30. Collection box; 31. Suction pipe. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 - Figure 5 An embodiment of this utility model is provided: a fly ash pretreatment device for cement composite material production, including a housing 1, a collection tray 13 slidably connected to the bottom wall of the inner wall of the housing 1, a grinding component inside the housing 1, a shaking screening component inside the housing 1, a circulating grinding component outside the housing 1, and a dust collection component outside the housing 1.

[0034] The vacuuming assembly includes a collection box 30, which is fixedly connected to the outside of the housing 1. A suction tube 31 is fixedly connected to the top of the collection box 30. A dust collection tray 24 is slidably connected to the lower inside of the collection box 30. A fan 23 is installed on the inner wall of the collection box 30. A filter screen 22 is slidably connected to the inside of the collection box 30. A connecting block 25 is fixedly connected to the inside of the collection box 30. Two baffles 27 are slidably connected to the inner wall of the connecting block 25. A spring 26 is fixedly connected to one side of the baffle 27. A plug block 28 is fixedly connected to the other end of the baffle 27. A handle 29 is fixedly connected to the top of the baffle 27.

[0035] Specifically, the casing 1 forms the main frame of the device and houses the various components; the collection drawer 13 collects the treated fly ash that meets the requirements; the grinding component grinds the fly ash; the vibrating screening component screens the ground fly ash; the circulating grinding component returns large fly ash particles that fail to pass the screening to the grinding unit; the dust collection component collects the dust generated during the processing; the collection box 30 houses the dust collection component and related parts and collects the dust; the suction pipe 31 draws the dust from the casing 1 into the collection box 30; and the dust collection drawer... 24 is used to collect dust intercepted by filter screen 22. Fan 23 is used to generate suction to make dust in the casing 1 flow into collection box 30. Filter screen 22 is used to intercept dust. Connecting block 25 is used to install and fix baffle 27 and other components. Spring 26 is used to provide reset elasticity for baffle 27. Baffle 27 is used to fix or loosen filter screen 22 in conjunction with plug block 28. Plug block 28 is used to insert or pull out filter screen 22 to realize filter screen fixing or disassembly. Handle 29 is used to facilitate pulling baffle 27, thereby operating the installation and disassembly of filter screen 22.

[0036] Reference Figure 3 The grinding assembly includes a motor 4 and two grinding rollers 5. The motor 4 is fixedly connected to the outside of the housing 1. The grinding rollers 5 are rotatably connected to the inside of the housing 1. Gears 21 are fixedly connected to the ends of the two grinding rollers 5 away from the motor 4. The two gears 21 are meshed together. A pulley 6 is fixedly connected to the end of the left grinding roller 5 away from the gear 21.

[0037] Specifically, motor 4 provides power to the grinding assembly, driving the left grinding roller 5 to rotate. The grinding roller 5 is used to grind fly ash, gear 21 is used to transmit power between the two grinding rollers 5, causing them to rotate relative to each other, and pulley 6 is used to connect the rotating rod 8 via a belt to further transmit power and drive the related components to operate.

[0038] Reference Figure 1 - Figure 3 The vibrating screening assembly includes a screening screen 10 and a rotating rod 8. One side of the screening screen 10 is rotatably connected to the inner wall of the housing 1, and multiple springs 11 are fixedly connected to the bottom of the other side of the screening screen 10. A fixing block 12 is fixedly connected to the bottom of the springs 11. The outer side of the fixing block 12 is fixedly connected to the inside of the housing 1. The outer side of the rotating rod 8 is rotatably connected to the inside of the housing 1. A pulley 7 is fixedly connected to one end of the rotating rod 8, and a cam 9 is fixedly connected to the other end of the rotating rod 8. The cam 9 abuts against the screening screen 10. The pulley 7 and the pulley 6 are connected by a belt.

[0039] Specifically, the screening screen 10 is used to screen the ground fly ash, separating particles that meet and do not meet the particle size requirements. The rotating rod 8 is used to drive the cam 9 to rotate. The spring 11 provides elastic support and vibration assistance for the screening screen 10. The fixing block 12 is used to fix the spring 11 to ensure its stable function. The pulley 7 is connected to the pulley 6 via a belt to receive the power of the grinding assembly, thereby driving the rotating rod 8 to rotate. The cam 9, driven by the rotating rod 8, continuously abuts against the screening screen 10, causing it to vibrate and improving the screening effect.

[0040] Reference Figure 3 The circulating grinding assembly includes a support block 14, which is fixedly connected to the outside of the housing 1. A housing 16 is fixedly connected to the top of the support block 14. A second motor 17 is fixedly connected to the top of the housing 16. An auger shaft 18 is fixedly connected to the output end of the second motor 17. Spiral blades 19 are fixedly connected to the outside of the auger shaft 18. A discharge port 15 is fixedly connected to the lower part of the outer side of the housing 16. A second feed port 20 is fixedly connected to the upper part of the outer side of the housing 16.

[0041] Specifically, the support block 14 is used to fix and support the outer shell 16, so that it is firmly connected to the outside of the machine casing 1. The outer shell 16 is used to house components such as the second motor 17, the auger shaft 18, and the spiral blades 19, and serves as a channel for circulating and conveying fly ash. The second motor 17 is used to provide power to the circulating grinding assembly and drive the auger shaft 18 to rotate. The auger shaft 18 is used to drive the spiral blades 19 to rotate, thereby conveying fly ash. The spiral blades 19 are used to convey large particles of fly ash that have not passed the screening upward when the auger shaft 18 rotates. The discharge port 15 is used to send the fly ash conveyed by the circulating grinding assembly back into the machine casing 1 for further grinding and screening. The second feed port 20 is used to allow large particles of fly ash that have not passed the screening to enter the outer shell 16 and start the circulating grinding process.

[0042] Reference Figure 1 - Figure 5 The outer side of the plug block 28 is slidably connected to the inside of the connecting block 25, and the outer side of the plug block 28 is inserted into the inside of the filter screen 22. The end of the suction tube 31 away from the collection box 30 is fixedly connected to the lower part of the outer side of the machine housing 1. The end of the spring 26 away from the baffle 27 is fixedly connected to the inner wall of the connecting block 25. The outer side of the handle 29 is slidably connected to the outer side of the connecting block 25. The top of the machine housing 1 is fixedly connected to the feed inlet 2. The outer side of the feed inlet 2 is provided with a valve 3. The outer side of the discharge port 15 is fixedly connected to the lower part of the outer side of the machine housing 1. The outer side of the feed inlet 20 is fixedly connected to the upper part of the outer side of the machine housing 1.

[0043] Specifically, the plug-in block 28 is used to slide within the connecting block 25 and insert into the filter screen 22 to fix the filter screen 22; the suction pipe 31 is used to suck the dust generated at the lower outer side of the casing 1 into the collection box 30; the second spring 26 is used to provide elastic restoring force for the baffle 27 on the inner wall of the connecting block 25; the handle 29 is used on the outer side of the connecting block 25 for easy pulling by the operator, thereby driving the baffle 27 to move; the feed port 2 is used for fly ash to enter the casing 1; the valve 3 is used to control the opening and closing of the feed port 2 and adjust the fly ash feed amount; the discharge port 15 is used to send the fly ash processed by the circulating grinding component back into the casing 1 from the lower outer side of the casing 1; and the second feed port 20 is used to receive large fly ash particles that have not passed the screening at the upper outer side of the casing 1 and let them enter the outer shell 16 of the circulating grinding component.

[0044] Working principle: In the fly ash pretreatment device used for cement composite material production, when working, first open valve 3 at feed inlet 2, and fly ash enters the casing 1 from feed inlet 2.

[0045] The grinding assembly begins operation. Motor 4 starts running, and its output shaft drives the left grinding roller 5 to rotate. The pulley 6 at one end of the left grinding roller 5 rotates accordingly, driving the pulley 7 through a belt connection, which in turn drives the rotating rod 8 to rotate. The cam 9 at the other end of the rotating rod 8 also rotates synchronously. At the same time, the gear 21 at the other end of the left grinding roller 5 drives another gear 21 meshing with it to rotate, realizing the relative rotation of the two grinding rollers 5, thus grinding the fly ash that has entered the casing 1.

[0046] The ground fly ash falls onto the screening screen 10. As the rotating rod 8 rotates, the cam 9 continuously abuts against the screening screen 10. With the cooperation of the spring 11 and the fixed block 12, the screening screen 10 vibrates, thus screening the ground fly ash. Fly ash that meets the particle size requirements passes through the screening screen 10 and falls into the collection tray 13 below for collection.

[0047] Larger fly ash particles that fail to pass through the screening filter 10 enter the circulating grinding assembly. These larger fly ash particles enter the outer casing 16 through the feed inlet 20. The motor 17 drives the auger shaft 18 to rotate, and the spiral blades 19 on the auger shaft 18 convey the fly ash upwards and feed it back into the casing 1 from the discharge outlet 15 for further grinding and screening. This achieves effective grading and screening of fly ash, collecting those that meet the particle size requirements and reprocessing those that do not, thereby improving the uniformity of fly ash particle size and the pretreatment effect.

[0048] When the collection drawer 13 needs to be removed, the fan 23 starts. The dust generated inside the casing 1 is sucked into the collection box 30 through the suction pipe 31 by the fan 23. When the dust passes through the filter screen 22, it is intercepted by the filter screen 22 and falls into the dust collection drawer 24 for collection. When the filter screen 22 needs to be replaced, the handle 29 on the outside of the connecting block 25 is pulled. The handle 29 moves the baffle 27, causing the insertion block 28 inserted inside the filter screen 22 to be pulled out of the filter screen 22. At this time, the second spring 26 is compressed, and the filter screen 22 can be removed for replacement. After replacement, the handle 29 is released. Under the action of the second spring 26, the baffle 27 moves the insertion block 28 back into the filter screen 22, completing the installation of the new filter screen 22. This achieves dust collection when the collection drawer 13 is removed, avoiding dust emission and environmental pollution, preventing inhalation by workers, and ensuring the health of workers. At the same time, the filter screen is easy to replace, ensuring the continuous and effective operation of the fan 23.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fly ash pretreatment device for cement composite material production, comprising a casing (1), characterized in that: A collection tray (13) is slidably connected to the bottom wall of the inner casing (1). A grinding component is provided inside the casing (1). A shaking screening component is provided inside the casing (1). A circulating grinding component is provided on the outside of the casing (1). A dust collection component is provided on the outside of the casing (1). The dust collection assembly includes a collection box (30), which is fixedly connected to the outside of the housing (1). A suction tube (31) is fixedly connected to the top of the collection box (30). A dust collection tray (24) is slidably connected to the lower inside of the collection box (30). A fan (23) is installed on the inner wall of the collection box (30). A filter screen (22) is slidably connected inside the collection box (30). A connecting block (25) is fixedly connected inside the collection box (30). Two baffles (27) are slidably connected to the inner wall of the connecting block (25). A spring (26) is fixedly connected to one side of the baffle (27). A plug block (28) is fixedly connected to the other end of the baffle (27). A handle (29) is fixedly connected to the top of the baffle (27).

2. The fly ash pretreatment device for cement composite material production according to claim 1, characterized in that: The grinding assembly includes a motor (4) and two grinding rollers (5). The motor (4) is fixedly connected to the outside of the housing (1), and the grinding rollers (5) are rotatably connected to the inside of the housing (1). Gears (21) are fixedly connected to the ends of the two grinding rollers (5) away from the motor (4), and the two gears (21) are meshed together. A pulley (6) is fixedly connected to the end of the left grinding roller (5) away from the gear (21).

3. The fly ash pretreatment device for cement composite material production according to claim 2, characterized in that: The vibrating screening assembly includes a screening screen (10) and a rotating rod (8). One side of the screening screen (10) is rotatably connected to the inner wall of the housing (1). The bottom of the other side of the screening screen (10) is fixedly connected to a plurality of springs (11). The bottom end of the springs (11) is fixedly connected to a fixing block (12). The outer side of the fixing block (12) is fixedly connected to the inside of the housing (1). The outer side of the rotating rod (8) is rotatably connected to the inside of the housing (1). One end of the rotating rod (8) is fixedly connected to a pulley (7). The other end of the rotating rod (8) is fixedly connected to a cam (9). The cam (9) abuts against the screening screen (10). The pulley (7) is connected to the pulley (6) by a belt.

4. The fly ash pretreatment device for cement composite material production according to claim 1, characterized in that: The circulating grinding assembly includes a support block (14), which is fixedly connected to the outside of the housing (1). A housing (16) is fixedly connected to the top of the support block (14). A second motor (17) is fixedly connected to the top of the housing (16). An auger shaft (18) is fixedly connected to the output end of the second motor (17). A spiral blade (19) is fixedly connected to the outside of the auger shaft (18). A discharge port (15) is fixedly connected to the lower part of the outside of the housing (16). A second feed port (20) is fixedly connected to the upper part of the outside of the housing (16).

5. The fly ash pretreatment device for cement composite material production according to claim 1, characterized in that: The outer side of the plug (28) is slidably connected to the inside of the connecting block (25), the outer side of the plug (28) is inserted into the inside of the filter screen (22), and the end of the suction tube (31) away from the collection box (30) is fixedly connected to the lower part of the outer side of the housing (1).

6. The fly ash pretreatment device for cement composite material production according to claim 1, characterized in that: The end of the second spring (26) away from the baffle (27) is fixedly connected to the inner wall of the connecting block (25), and the outer side of the handle (29) is slidably connected to the outer side of the connecting block (25).

7. The fly ash pretreatment device for cement composite material production according to claim 1, characterized in that: The top of the housing (1) is fixedly connected to a feed inlet (2), and a valve (3) is provided on the outside of the feed inlet (2).

8. The fly ash pretreatment device for cement composite material production according to claim 4, characterized in that: The discharge port (15) is fixedly connected to the lower part of the outer side of the housing (1), and the feed port (20) is fixedly connected to the upper part of the outer side of the housing (1).

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