Mortar mixing and dust removing device with self-cleaning function

Abstract

The utility model belongs to dust collector technical field, concretely relates to a mortar stirring dust collector with self -cleaning function, including flat -mouthed mixer bin, the bottom welding of flat -mouthed mixer bin has a plurality of support legs, a plurality of support legs between mutual fixed connection has the support seat, the upper end middle part fixed mounting of support seat has motor, the output shaft of motor penetrates flat -mouthed mixer bin and is connected with the bottom of flat -mouthed mixer bin through sealing bearing. Through the combination of dust hood, air suction pump and filter cloth, efficient dust removal and self-cleaning during stirring are realized, specifically, the eccentric shaft of the stirring shaft drive is used for periodically lifting the inclined surface seat, the filter cloth is made to produce high-frequency vibration, the dust adhered to the surface can be automatically and timely vibrated off, the filter cloth is effectively prevented from being blocked, and this self-cleaning mechanism not only guarantees the continuous and stable dust absorption efficiency of the air suction pump.

Description

Technical Field

[0001] This solution belongs to the field of dust removal devices, specifically involving a mortar mixing dust removal device with self-cleaning function. Background Technology

[0002] Mortar mixing is an indispensable part of construction. Traditional mortar mixing equipment, especially flat-mouth mixers, generates a large amount of dust during operation due to the addition of dry powder materials (such as cement and fly ash) and the high-speed mixing of wet materials. This dust escapes from the open opening of the mixer chamber, causing serious environmental pollution, which not only harms the respiratory health of operators but also leads to material waste and pollution of the surrounding area. To address this problem, existing technologies typically install a fixed dust collection hood above the mixer and connect it to an exhaust system to attempt to draw the dust into the dust collection system.

[0003] A search revealed a utility model patent with authorization announcement number CN213500021U, which discloses a dust collector for a mortar mixer. The dust collector includes a mortar mixer and an outer casing. A processing cylinder is mounted on the bottom of the mortar mixer via a rotating shaft. The outer casing is fixedly connected to one side of the processing cylinder, and a retaining shaft is movably connected to the outer surface of the outer casing. In this dust collector, the outer casing and adjusting support allow the annular shell inside the adjusting support to align with the processing cylinder.

[0004] Based on the search of the aforementioned patents and in conjunction with existing dust collection devices, it was found that fixed dust collection hoods often have a large gap with the mixer hopper opening in order not to affect material feeding and observation, resulting in poor sealing and a large amount of dust still escaping from the gaps during the suction process; secondly, filter cloths or screens in the dust collection system are very prone to clogging after capturing fine dust, which will rapidly reduce the suction efficiency and even cause the dust collection system to fail. Utility Model Content

[0005] The purpose of this solution is to provide a mortar mixing dust removal device with self-cleaning function to solve the problems of poor sealing and easy clogging of existing dust removal devices.

[0006] To achieve the above objectives, this solution provides a mortar mixing dust removal device with self-cleaning function, including a flat-mouth mixing chamber. Multiple support legs are welded to the bottom of the flat-mouth mixing chamber, and a support base is fixedly connected to the multiple support legs. A motor is fixedly installed at the upper center of the support base. The output shaft of the motor passes through the flat-mouth mixing chamber and is connected to the bottom of the flat-mouth mixing chamber via a sealed bearing. A rotating shaft is fixedly connected to the end of the output shaft, and a shaped rod is fixedly connected to the top of the rotating shaft. Multiple fixing frames are fixedly connected to the inner side of the upper opening of the flat-mouth mixing chamber, and a dust collection hood is fixedly connected to the top of the multiple fixing frames. An air pump is fixedly installed on the outer side of the dust collection hood, and a connecting pipe is fixedly connected to the input end of the air pump. The end of the connecting pipe is connected to the top of the dust collection hood.

[0007] The principle of this solution is as follows: First, the curtain is lifted, and the mortar aggregate is put into the flat-mouth mixer chamber. Then, the motor is started, which drives the rotating shaft, mixing blades, and special-shaped rod to rotate, mixing the mortar. At the same time, the air pump is started, and the dust generated by the mixing is sucked upward and filtered through the filter cloth. Clean air is discharged, and the dust is trapped inside the filter cloth. The arc-shaped rod periodically pushes up the inclined seat, allowing the inclined seat to overcome the elastic force of the spring and drive the guide column to slide upward in the guide sleeve. After the special-shaped rod has rotated, the inclined seat quickly falls back under the action of the spring. This periodic lifting and lowering motion is transformed into violent shaking, which is transmitted through the filter cloth, causing the dust attached to it to be shaken off and fall back into the mixer chamber, thereby achieving self-cleaning of the filter cloth and maintaining smooth airflow.

[0008] The technical advantages of this solution are as follows: By combining a dust collection hood, an air pump, and a shakeable filter cloth, efficient dust removal and self-cleaning are achieved during the mixing process. Specifically, the irregularly shaped rod driven by the rotating shaft periodically lifts the inclined seat, causing the filter cloth to vibrate at a high frequency. This automatically and promptly shakes off the dust adhering to its surface, effectively preventing filter cloth clogging. This self-cleaning mechanism not only ensures the continuous and stable dust suction efficiency of the air pump, confining most of the dust inside the dust collection hood and greatly improving the working environment, but also eliminates the hassle of frequent manual shutdowns for cleaning, thus achieving improvements in both environmental benefits and operational efficiency.

[0009] By innovatively adopting a multi-curtain design at the interface between the flat-mouth mixer chamber and the dust collection hood, these interlocking curtains can closely fit the outer wall of the mixing chamber, effectively blocking the key channels for dust to escape outward and ensuring the airtightness of the dust removal system. At the same time, the curtain material is flexible and will not interfere with the normal operation of the mixing chamber, and operators can easily lift the curtains to perform feeding or discharging operations.

[0010] Furthermore, multiple mounting brackets are bolted to the upper end of the rotating shaft. Each mounting bracket is L-shaped, and a stirring blade is fixedly connected to its vertical end. The stirring blade is slidably connected to the flat-mouth mixer chamber. The bottom of the stirring blade contacts the bottom and part of the side wall of the flat-mouth mixer chamber for mixing the mortar.

[0011] Furthermore, two fixed rods are fixedly connected to the inner side of the dust collection hood. A guide sleeve is fixedly connected to the end of each fixed rod. A guide post is slidably connected inside the guide sleeve. A sloped seat is fixedly connected to the bottom of the guide post. The bottom of the sloped seat has an incline. The inclined part of the sloped seat contacts the top of the shaped rod. A filter cloth is fixedly connected to the circumferential surface of the sloped seat, and the outer ring of the filter cloth is fixedly connected to the inner wall of the dust collection hood. As the shaped rod rotates with the rotating shaft, it can perform a circular motion at the bottom of the sloped seat. Then, through its interaction with the inclined part of the sloped seat, it drives the sloped seat to periodically rise and fall, thereby shaking the filter plate and achieving self-cleaning.

[0012] Furthermore, a spring is provided inside the guide sleeve. One end of the spring is fixedly connected to the top of the guide post, and the other end of the spring is fixedly connected to the inner surface of the guide sleeve. The spring force can act on the inclined seat through the guide post.

[0013] Furthermore, a corrugated sleeve is fixedly connected to the bottom of the guide sleeve, and the bottom of the corrugated sleeve is fixedly connected to the top of the inclined seat. The corrugated sleeve has its own elasticity, which, without affecting the relative sliding of the guide post and the guide sleeve, also has a dustproof function at the relative sliding points of the guide sleeve and the guide post.

[0014] Furthermore, a curtain is bolted to the outer wall of the dust collection hood, and the curtain contacts the outer wall of the flat-mouth mixer chamber. The curtain is made of rubber and can seal the area between the flat-mouth mixer chamber and the dust collection hood to prevent dust from overflowing.

[0015] Furthermore, multiple curtains are provided, with adjacent curtains contacting each other. These multiple curtains completely enclose the area between the flat-mouth mixer chamber and the dust collection hood, allowing operators to lift them for material handling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is an embodiment of the present utility model. Figure 1 A schematic diagram of a partial structure; Figure 3 This is an embodiment of the present utility model. Figure 1 A front sectional view; Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged view of point A.

[0017] The following detailed explanation illustrates the specific implementation methods: The reference numerals in the accompanying drawings include: 1. Flat-mouth mixer chamber; 2. Support leg; 3. Support base; 4. Motor; 5. Rotary shaft; 6. Mounting frame; 7. Mixing blade; 8. Irregular rod; 9. Fixing frame; 10. Dust collection hood; 11. Air pump; 12. Connecting pipe; 13. Fixing rod; 14. Guide sleeve; 15. Guide column; 16. Inclined seat; 17. Filter cloth; 18. Spring; 19. Corrugated sleeve; 20. Curtain. Detailed Implementation

[0018] The basic implementation examples are as follows: Figures 1-4 As shown: A mortar mixing dust removal device with self-cleaning function includes a flat-mouth mixing chamber 1. Multiple support legs 2 are welded to the bottom of the flat-mouth mixing chamber 1. The multiple support legs 2 are fixedly connected to a support base 3. A motor 4 is fixedly installed in the middle of the upper end of the support base 3. The output shaft of the motor 4 passes through the flat-mouth mixing chamber 1 and is connected to the bottom of the flat-mouth mixing chamber 1 through a sealed bearing. A rotating shaft 5 is fixedly connected to the end of the output shaft. Multiple mounting brackets 6 are bolted to the upper end of the shaft of the rotating shaft 5. The mounting brackets 6 are L-shaped. A stirring blade 7 is fixedly connected to the vertical end of the mounting bracket 6. The stirring blade 7 is slidably connected to the flat-mouth mixing chamber 1. The bottom of the mixing blade 7 contacts the bottom and part of the side wall of the flat-mouth mixer chamber 1 for mixing mortar. The top of the rotating shaft 5 is fixedly connected to a special-shaped rod 8. Multiple fixing brackets 9 are fixedly connected to the inner side of the upper opening of the flat-mouth mixer chamber 1. The top of the multiple fixing brackets 9 is fixedly connected to a dust collection hood 10. An air pump 11 is fixedly installed on the outer side of the dust collection hood 10. A connecting pipe 12 is fixedly connected to the input end of the air pump 11. The end of the connecting pipe 12 is connected to the top of the dust collection hood 10.

[0019] like Figure 3 , Figure 4As shown, two fixed rods 13 are fixedly connected to the inner side of the dust collection hood 10. A guide sleeve 14 is fixedly connected to the end of each fixed rod 13. A guide post 15 is slidably connected inside the guide sleeve 14. A sloped seat 16 is fixedly connected to the bottom of the guide post 15. The bottom of the sloped seat 16 has a slope, and the sloped part of the sloped seat 16 contacts the top of the shaped rod 8. A filter cloth 17 is fixedly connected to the circumferential surface of the sloped seat 16, and the outer ring of the filter cloth 17 is fixedly connected to the inner wall of the dust collection hood 10. During the rotation of the shaped rod 8 following the rotating shaft 5, it can perform circumferential motion at the bottom of the sloped seat 16. Then, through its interaction with the sloped part of the sloped seat 16, it drives the sloped seat 16 to periodically rise and fall, thereby shaking the filter plate 17 and achieving self-cleaning. A spring 18 is installed inside the guide sleeve 14. One end of the spring 18 is fixedly connected to the top of the guide post 15, and the other end of the spring 18 is fixedly connected to the inner surface of the guide sleeve 14. The elastic force of spring 18 can be applied to the inclined seat 16 through guide post 15. A corrugated sleeve 19 is fixedly connected to the bottom of guide sleeve 14, and the bottom of corrugated sleeve 19 is fixedly connected to the top of inclined seat 16. Corrugated sleeve 19 has inherent elasticity, and while not affecting the relative sliding of guide post 15 and guide sleeve 14, it also provides dust protection at the relative sliding points of guide sleeve 14 and guide post 15.

[0020] like Figure 1 , Figure 3 As shown, a curtain 20 is bolted to the outer wall of the dust collection hood 10, and the curtain 20 contacts the outer wall of the flat-mouth mixer chamber 1. The curtain 20 is made of rubber and can seal the area between the flat-mouth mixer chamber 1 and the dust collection hood 10 to prevent dust from overflowing. Multiple curtains 20 are provided, and adjacent curtains 20 are in contact with each other. Multiple curtains 20 completely cover the area between the flat-mouth mixer chamber 1 and the dust collection hood 10, and operators can lift them to load and unload materials.

[0021] The specific implementation process of this utility model is as follows: First, lift the curtain 20 and put the mortar aggregate into the flat-mouth mixer chamber 1. Then, start the motor 4. The motor 4 drives the rotating shaft 5, the mixing blade 7 and the shaped rod 8 to rotate, and mix the mortar. At the same time, start the air pump 11. The dust generated by the mixing is sucked upward and filtered through the filter cloth 17. Clean air is discharged and the dust is trapped inside the filter cloth 17. The arc top of the rotating shaped rod 8 will periodically push up the inclined seat 16, so that the inclined seat 16 overcomes the elastic force of the spring 18 and drives the guide column 15 to slide upward in the guide sleeve 14. After the shaped rod 8 has rotated, the inclined seat 16 will fall back quickly under the action of the spring 18. This periodic lifting and lowering motion is transformed into violent shaking, which is transmitted through the filter cloth 17, causing the dust attached to it to be shaken off and fall back into the mixer chamber, thereby realizing the self-cleaning of the filter cloth and keeping the airflow unobstructed.

[0022] This solution combines a dust collection hood 10, an air pump 11, and a shakeable filter cloth 17 to achieve efficient dust removal and self-cleaning during the mixing process. Specifically, the irregularly shaped rod 8 driven by the rotating shaft 5 used for mixing periodically lifts the inclined seat 16, causing the filter cloth 17 to vibrate at a high frequency. This automatically and promptly shakes off the dust adhering to its surface, effectively preventing the filter cloth 17 from clogging. This self-cleaning mechanism not only ensures the continuous and stable dust suction efficiency of the air pump 11, but also confines most of the dust inside the dust collection hood 10, greatly improving the working environment. Furthermore, it eliminates the hassle of frequent manual shutdowns for cleaning, achieving both environmental benefits and improved operational efficiency.

[0023] By innovatively adopting a multi-curtain design at the interface between the flat-mouth mixer chamber 1 and the dust collection hood 10, these mutually contacting curtains 20 can closely fit the outer wall of the mixing chamber, effectively blocking the key channels for dust to escape outward, ensuring the airtightness of the dust removal system. At the same time, the curtains 20 are made of flexible material and will not interfere with the normal operation of the mixing chamber. Operators can also easily lift the curtains 20 to perform feeding or discharging operations.

[0024] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A mortar mixing and dust removal device with self-cleaning function, comprising a flat-mouth mixing chamber, characterized in that: The bottom of the flat-mouth mixer chamber is welded with multiple support legs, and a support base is fixedly connected to the multiple support legs. A motor is fixedly installed at the upper middle part of the support base. The output shaft of the motor passes through the flat-mouth mixer chamber and is connected to the bottom of the flat-mouth mixer chamber through a sealed bearing. A rotating shaft is fixedly connected to the end of the output shaft, and a special-shaped rod is fixedly connected to the top of the rotating shaft. Multiple fixing frames are fixedly connected to the inner side of the upper opening of the flat-mouth mixer chamber. A dust collection hood is fixedly connected to the top of the multiple fixing frames. An air pump is fixedly installed on the outer side of the dust collection hood. A connecting pipe is fixedly connected to the input end of the air pump, and the end of the connecting pipe is connected to the top of the dust collection hood.

2. The mortar mixing and dust removal device with self-cleaning function according to claim 1, characterized in that: The upper end of the shaft is bolted with multiple mounting brackets. The mounting brackets are L-shaped, and the vertical ends of the mounting brackets are fixedly connected with stirring blades. The stirring blades are slidably connected to the flat-mouth mixer chamber.

3. The mortar mixing and dust removal device with self-cleaning function according to claim 1, characterized in that: Two fixing rods are fixedly connected to the inner side of the dust collection hood. A guide sleeve is fixedly connected to the end of the fixing rod. A guide post is slidably connected inside the guide sleeve. An inclined seat is fixedly connected to the bottom of the guide post. An inclined surface is provided at the bottom of the inclined seat. The inclined surface of the inclined seat contacts the top of the irregular rod. A filter cloth is fixedly connected to the circumferential surface of the inclined seat. The outer ring of the filter cloth is fixedly connected to the inner wall of the dust collection hood.

4. A mortar mixing and dust removal device with self-cleaning function according to claim 3, characterized in that: A spring is installed inside the guide sleeve. One end of the spring is fixedly connected to the top of the guide post, and the other end of the spring is fixedly connected to the inner surface of the guide sleeve.

5. A mortar mixing and dust removal device with self-cleaning function according to claim 3, characterized in that: A corrugated sleeve is fixedly connected to the bottom of the guide sleeve, and the bottom of the corrugated sleeve is fixedly connected to the top of the inclined seat.

6. A mortar mixing and dust removal device with self-cleaning function according to claim 1, characterized in that: A curtain is bolted to the outer wall of the dust collection hood, and the curtain contacts the outer wall of the flat-mouth mixer chamber.

7. A mortar mixing and dust removal device with self-cleaning function according to claim 6, characterized in that: Multiple curtains are provided, and adjacent curtains are in contact with each other.

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