A cement mixing dust recovery device

Abstract

This utility model relates to the technical field of cement mixing equipment and discloses a cement mixing dust recovery device, including a dust collection tower. Multiple inner leakage baffles are fixedly connected to the inner side of the dust collection tower, arranged in a linear array from top to bottom. An outer leakage baffle, fixedly connected to the inner side of the dust collection tower, is provided between adjacent inner leakage baffles. This utility model uses a dust collection pipe and an exhaust fan to directly introduce dust generated during cement mixing into the dust collection tower. Water flows from top to bottom, while dust-laden air flows from bottom to top. During the back-and-forth migration across the surfaces of the baffles and at the inner and outer grooves, the dust and air are fully intertwined and dissolved. The water dissolves the dust in the air to form cement, which is then directly returned to the cement mixing tank from the cement discharge pipe. This device has the advantages of simple dust control and high-efficiency dust recovery.

Description

Technical Field

[0001] This utility model relates to the technical field of cement mixing equipment, and in particular to a cement mixing dust recovery device. Background Technology

[0002] During cement mixing, some dust is generated in the air. Cement dust recovery devices can recover the cement dust that diffuses in the air, which can not only reduce environmental pollution, but also use the recovered dust as part of the raw material ratio, reducing the need for new raw materials and thus reducing production costs. However, existing cement mixing dust recovery devices generally have the problem of cumbersome operation.

[0003] For example, Chinese utility model patent CN219486113U discloses a dust recovery device for concrete production. Although this solution uses a fixing mechanism to fix the dust recovery device for concrete production on the mixer, uses an insertion rod to fix the cement powder bag, and uses a tilting mechanism to move the cement powder bag, and then tilts the cement powder in the bag to realize cement recovery, after the cement in the cement powder bag is poured into the mixer, the mixer will generate dust again after it works, which is very cumbersome.

[0004] In view of this, a cement mixing dust recovery device is proposed to solve the above problems. Utility Model Content

[0005] To address the technical problem of dust recovery during cement mixing, this utility model provides a cement mixing dust recovery device.

[0006] This utility model is achieved using the following technical solution: a cement mixing dust recovery device, comprising a dust collection tower, wherein multiple inner leakage baffles are fixedly connected to the inner side of the dust collection tower, the multiple inner leakage baffles are arranged in a linear array from top to bottom, and an outer leakage baffle fixedly connected to the inner side of the dust collection tower is provided between each two adjacent inner leakage baffles. Each inner leakage baffle has an inner groove in its center, and each outer leakage baffle has multiple outer grooves on its outer side, the multiple outer grooves being arranged in a circumferential array. A connecting pipe is connected to the outer bottom of the dust collection tower, the lower end of the connecting pipe is located below the lowest layer of outer leakage baffles, a dust injection mechanism is provided at the upper end of the connecting pipe, a cement migration mechanism is provided inside the dust collection tower, a vibrating screen mechanism is provided on the upper side of the dust collection tower, and a cement discharge pipe is connected to the lower side of the dust collection tower.

[0007] As a further improvement to the above solution, the dust injection mechanism includes an exhaust fan connected to the upper end of the connecting pipe, and a dust suction pipe is connected to one side of the exhaust fan.

[0008] As a further improvement to the above solution, the cement migration mechanism includes a transmission rod rotatably connected to the upper side of the dust collection tower. The lower end of the transmission rod extends into the dust collection tower. Each inner and outer drain partition is provided with multiple rakes on its upper side. The multiple rakes are arranged in a circumferential array, and the ends of the multiple rakes that are close to each other are fixedly connected to the outer side of the transmission rod. Each inner drain partition has multiple inner rake teeth fixedly connected to its lower side, and each outer drain partition has multiple outer rake teeth fixedly connected to its lower side. The upper end of the transmission rod is provided with a rake tooth drive mechanism that rotates the rakes.

[0009] As a further improvement to the above solution, the rake tooth drive mechanism includes a second pulley fixedly connected to the upper end of the transmission rod, a first servo motor is installed on the upper side of the dust collection tower, the output end of the first servo motor is fixedly connected to a first pulley, and a belt is connected between the first pulley and the second pulley for transmission.

[0010] As a further improvement to the above solution, the vibrating screen mechanism includes an exhaust pipe connected to the upper side of the dust collection tower. A filter screen is installed at the upper end of the exhaust pipe, and a second servo motor is installed on the filter screen. An eccentric cam is fixedly connected to the output end of the second servo motor.

[0011] As a further improvement to the above solution, a water inlet pipe is connected to the upper side of the dust collection tower.

[0012] As a further improvement to the above solution, an LED industrial control panel is installed on the outside of the dust collection tower, and the LED industrial control panel is electrically connected to the first servo motor, the second servo motor, and the third servo motor.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a dust suction pipe and an exhaust fan to directly guide the dust from the cement mixing process into the dust suction tower. The water inlet flows from top to bottom, while the dust and air flow from bottom to top. During the process of the two moving back and forth on the surface of each partition and at the inner and outer grooves, they are fully intertwined and dissolved. The water can dissolve the dust contained in the air in time to form cement, which is then directly returned to the cement mixing tank from the cement discharge pipe. It has the advantages of simple dust operation and high efficiency in dust recovery.

[0015] 2. This utility model uses the inner and outer rake teeth to work together. During the rotation of the transmission rod, the cement formed by the dissolution of dust can be moved along the surface of the inner leakage partition to the inner groove. At the same time, the outer rake teeth move the cement formed on the outer leakage partition to the outer groove. The cement flows downward in sequence, avoiding cement from being stuck in the dust collection tower and causing blockage. It can also maximize the recycling of cement in the dust. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a cement mixing dust recovery device provided by this utility model;

[0017] Figure 2 for Figure 1 Top view;

[0018] Figure 3 for Figure 1 Internal structure diagram;

[0019] Figure 4 This is a schematic diagram of the structure of the vibrating screen mechanism in one embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the inner and outer rake teeth in one embodiment of the present invention.

[0021] Explanation of key symbols:

[0022] 1. Cement discharge pipe; 2. Dust collection tower; 3. LED industrial control panel; 4. Servo motor No. 1; 5. Pulley No. 1; 6. Pulley No. 2; 7. Water inlet pipe; 8. Dust collection pipe; 9. Exhaust fan; 10. Connecting pipe; 11. Filter screen; 12. Servo motor No. 2; 13. Belt; 14. Transmission rod; 15. Inner groove; 16. Outer groove; 17. Inner leakage partition; 18. Outer leakage partition; 19. Inner rake teeth; 20. Outer rake teeth; 21. Eccentric cam. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example:

[0025] Please combine Figures 1-3This embodiment of a cement mixing dust recovery device includes a dust collection tower 2. In this embodiment, two inner leakage baffles 17 are fixedly connected to the inner side of the dust collection tower 2. The two inner leakage baffles 17 are arranged in a linear array from top to bottom, and an outer leakage baffle 18 fixedly connected to the inner side of the dust collection tower 2 is provided between two adjacent inner leakage baffles 17. It should be noted that in other embodiments, other numbers of inner leakage baffles 17 and outer leakage baffles 18 can be provided according to the amount of dust.

[0026] Please combine Figure 3 As shown, each inner perforation plate 17 has an inner groove 15 in the center. In this embodiment, the inner groove 15 is a circular structure, and the transmission rod 14 passes vertically through the inner groove 15.

[0027] Please combine Figure 3 As shown, each external partition 18 has multiple external slots 16 on its outer side, and the multiple external slots 16 are arranged in a circumferential array. The bottom outer side of the dust collection tower 2 is connected to a connecting pipe 10. The lower end of the connecting pipe 10 is located below the lowest external partition 18. The upper end of the connecting pipe 10 is provided with a dust injection mechanism. The inside of the dust collection tower 2 is provided with a cement migration mechanism. The upper side of the dust collection tower 2 is provided with a vibrating screen mechanism. The lower side of the dust collection tower 2 is connected to a cement discharge pipe 1.

[0028] Please combine Figure 1 As shown, the dust injection mechanism includes an exhaust fan 9 connected to the upper end of the connecting pipe 10. A dust suction pipe 8 is connected to one side of the exhaust fan 9. The dust-generating air in the cement mixing tank can be injected into the dust suction tower 2 through the exhaust fan 9.

[0029] Please combine Figure 3 As shown, the cement migration mechanism includes a transmission rod 14 that is rotatably connected to the upper side of the dust collection tower 2. It should be noted that the transmission rod 14 is rotatably connected to the center position of each external leakage partition 18.

[0030] Please combine Figure 3 As shown, the lower end of the transmission rod 14 extends into the dust collection tower 2, and three rakes are provided on the upper side of each inner leakage baffle 17 and outer leakage baffle 18, with the three rakes arranged in a circumferential array.

[0031] Please combine Figure 3 As shown, the ends of the multiple rake rods that are close to each other are fixedly connected to the outside of the transmission rod 14. The lower side of the rake rod above each inner partition 17 is fixedly connected to multiple inner rake teeth 19, and the lower side of the rake rod above each outer partition 18 is fixedly connected to multiple outer rake teeth 20. The upper end of the transmission rod 14 is provided with a rake tooth drive mechanism that makes the rake rods rotate.

[0032] It should be noted that when the inner rake teeth 19 rotate, they can push the cement slurry on the upper surface of the inner perforation plate 17 into the inner groove 15, and at the same time have a certain mixing effect.

[0033] Please combine Figure 1 As shown, the rake tooth drive mechanism includes a second pulley 6 fixedly connected to the upper end of the transmission rod 14, a first servo motor 4 installed on the upper side of the dust collection tower 2, a first pulley 5 fixedly connected to the output end of the first servo motor 4, and a belt 13 connecting the first pulley and the second pulley 6.

[0034] Please combine Figure 2 As shown, the vibrating screen mechanism includes an exhaust pipe connected to the upper side of the dust collection tower 2. A filter screen 11 is installed at the upper end of the exhaust pipe. The filter screen 11 can filter and intercept large particles in the dust. A second servo motor 12 is installed on the filter screen 11. An eccentric cam 21 is fixedly connected to the output end of the second servo motor 12.

[0035] Please combine Figure 2 As shown, the upper side of the dust collection tower 2 is connected to a water inlet pipe 7, through which an external water source can be connected;

[0036] Please combine Figure 1 As shown, an LED industrial control panel 3 is installed on the outside of the dust collection tower 2. The LED industrial control panel 3 is electrically connected to the first servo motor 4, the second servo motor 12 and the third servo motor 12.

[0037] The implementation principle of the cement mixing dust recovery device in this embodiment is as follows: the dust generated during cement mixing is injected into the bottom of the dust collection tower 2 from the lower end of the connecting pipe 10 through the dust collection pipe 8 and the exhaust fan 9. The dust then flows from bottom to top, passing through the outer groove 16 on the outer edge of the outer perforation plate 18, and then flowing through the inner groove 15 on the inner perforation plate 17 of the upper layer, until it reaches the filter screen 11 at the top. The filter screen 11 can perform final filtration of the last remaining cement dust. The second servo motor 12 drives the eccentric cam 21 to form a vibrating screen to filter the intercepted cement dust. The cement is removed and eventually falls into the water. When the No. 1 servo motor 4 rotates, it can drive the transmission rod 14 to rotate via the belt 13. The rotation of the transmission rod 14 drives the inner rake teeth 19 and the outer rake teeth 20 to rotate. Due to the unique structure of the inner rake teeth 19 and the outer rake teeth 20, the cement flowing on the inner drain plate 17 and the outer drain plate 18 can be pushed and moved, so that the cement flows down from the inner groove 15 on the inner drain plate 17 to the next layer of the outer drain plate 18. Then, the cement is pushed down from the outer groove 16 by the outer rake teeth 20, and finally flows back to the cement mixing tank from the cement discharge pipe 1.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A cement mixing dust recovery device comprising a dust suction tower (2), characterized in that, The dust collection tower (2) has multiple inner drainage baffles (17) fixedly connected to its inner side. The multiple inner drainage baffles (17) are arranged in a linear array from top to bottom, and an outer drainage baffle (18) fixedly connected to the inner side of the dust collection tower (2) is provided between each two adjacent inner drainage baffles (17). Each inner drainage baffle (17) has an inner groove (15) in its center, and each outer drainage baffle (18) has multiple outer grooves (16) on its outer side. The slots (16) are arranged in a circular array. The bottom outer side of the dust collection tower (2) is connected to a connecting pipe (10). The lower end of the connecting pipe (10) is located below the lowest layer of the external leakage partition (18). The upper end of the connecting pipe (10) is provided with a dust injection mechanism. The inside of the dust collection tower (2) is provided with a cement migration mechanism. The upper side of the dust collection tower (2) is provided with a vibrating screen mechanism. The lower side of the dust collection tower (2) is connected to a cement discharge pipe (1).

2. The cement mixing dust recovery device as described in claim 1, characterized in that, The dust injection mechanism includes a blower (9) connected to the upper end of the connecting pipe (10), and a suction pipe (8) is connected to one side of the blower (9).

3. A cement mixing dust recovery apparatus as claimed in claim 2, wherein, The cement migration mechanism includes a transmission rod (14) rotatably connected to the upper side of the dust collection tower (2). The lower end of the transmission rod (14) extends into the dust collection tower (2). Each inner and outer drain plate (17) is provided with multiple rakes on its upper side. The multiple rakes are arranged in a circumferential array, and the ends of the multiple rakes that are close to each other are fixedly connected to the outside of the transmission rod (14). The lower side of the rake above each inner drain plate (17) is fixedly connected with multiple inner rake teeth (19), and the lower side of the rake above each outer drain plate (18) is fixedly connected with multiple outer rake teeth (20). The upper end of the transmission rod (14) is provided with a rake tooth drive mechanism that rotates the rakes.

4. A cement mixing dust recovery apparatus as claimed in claim 3, wherein, The rake tooth drive mechanism includes a second pulley (6) fixedly connected to the upper end of the transmission rod (14), a first servo motor (4) is installed on the upper side of the dust collection tower (2), the output end of the first servo motor (4) is fixedly connected to a first pulley (5), and a belt (13) is connected between the first pulley and the second pulley (6).

5. A cement mixing dust recovery apparatus as claimed in claim 4, wherein, The vibrating screen mechanism includes an exhaust pipe connected to the upper side of the dust collection tower (2). A filter screen (11) is installed at the upper end of the exhaust pipe. A second servo motor (12) is installed on the filter screen (11). An eccentric cam (21) is fixedly connected to the output end of the second servo motor (12).

6. A cement mixing dust recovery apparatus as claimed in claim 1, wherein, The upper side of the dust collection tower (2) is connected to a water inlet pipe (7).

7. A cement mixing dust recovery apparatus as claimed in claim 5, wherein, An LED industrial control panel (3) is installed on the outside of the dust collection tower (2). The LED industrial control panel (3) is electrically connected to the first servo motor (4), the second servo motor (12), and the third servo motor (12).

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