Dust recovery and treatment equipment for an environmentally friendly cement production line
By combining the filter screen sleeve and the hose sleeve, the problem of small filtration area in cement recycling equipment is solved, achieving a larger filtration area and less clogging, thus improving the recycling efficiency of cement dust.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINGNING LONGJIANG BUILDING MATERIAL IND CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-04
AI Technical Summary
The existing cement recycling equipment has a small filtration area, which affects the ventilation volume and results in poor recycling efficiency.
The design employs a combination of a filter screen sleeve and a rubber hose sleeve. The filter screen sleeve filters cement dust, while the rubber hose sleeve vibrates under the impact of airflow to prevent clogging. Combined with a weighing component and other improved structures, it enhances stability and filtration area.
The increased filtration area reduces the risk of clogging, ensures airflow and recovery efficiency, and facilitates rapid collection of cement dust.
Smart Images

Figure CN224585566U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust adsorption technology, specifically a dust recovery and treatment device for an environmentally friendly cement production line. Background Technology
[0002] Although existing cement dust recovery equipment has been continuously innovated and developed to basically meet people's needs, there is still room for improvement.
[0003] For example, patent document CN219817413U discloses a dust adsorption, recycling, and reuse device for a cement production line. The bottom of the cylinder has a discharge chamber with a triangular bracket fixedly installed at the bottom. A centrifugal fan is installed at the top of the cylinder, with its input end connected to an exhaust pipe. A cleaning mechanism is located at the upper end of the exhaust pipe, including a bearing ring. The inner ring of the bearing ring is connected to the outer side of the upper end of the exhaust pipe. A gear disc is movably inserted into the upper end of the exhaust pipe near the bearing ring, with its bottom end fixedly connected to the outer ring of the bearing ring. By installing scrapers inside the cylinder that fit against its inner wall, the dust adhering to the inner wall of the cylinder can be removed when the scrapers rotate, thereby improving the dust recycling efficiency of the device.
[0004] Although the aforementioned cement recycling equipment can clean the dust adhering to the inner wall, its overall filtration area is small, which easily affects the actual ventilation volume, resulting in poor recycling efficiency. Therefore, there is an urgent need for an environmentally friendly dust recycling and treatment equipment for cement production lines to solve the above problems. Utility Model Content
[0005] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a dust recovery and treatment device for an environmentally friendly cement production line, so as to solve the problem that although the cement recovery device mentioned in the background art can clean the dust adhering to the inner wall, its overall filtration area is small, and the actual ventilation volume is easily affected, resulting in poor recovery efficiency.
[0006] This utility model provides the following technical solution: a dust recovery and treatment device for an environmentally friendly cement production line, including an air suction mechanism. The air suction mechanism includes a recovery box and an air inlet pipe and a centrifugal fan communicating with the inside of the recovery box. The surface of the recovery box is provided with an open opening, which is covered by a sealing cover.
[0007] It also includes a powder collection mechanism, which includes a filter screen sleeve placed inside the recycling bin and open at both ends, with each opening tied with a rope.
[0008] Additionally, a rubber sleeve is connected to the other opening of the filter sleeve and attached to the air inlet pipe by a rope, and the surface of the rubber sleeve has no holes.
[0009] To achieve the above technical solution, the filtration effect of the filter screen sleeve is combined with the shaking effect of the hose sleeve impacted by the airflow. This makes the filter screen sleeve less prone to clogging by cement dust while filtering. Compared with the existing technology, the actual filtration area of this device is larger, and it shakes with the airflow, making it less prone to clogging. This ensures its airflow and recovery effect, and the cement dust is collected in the filter screen sleeve for easy and quick removal.
[0010] As a further improvement to this utility model, the bottom of the inner wall of the recycling bin is recessed to form a placement area for inserting the filter screen sleeve.
[0011] The above technical solution improves the stability of the filter sleeve when placed in the recycling bin.
[0012] As a further improvement to this utility model, a weighing component is placed at the bottom of the inner wall of the placement area.
[0013] Implementing the above technical solution facilitates the timely replacement of the filter screen after collection.
[0014] As a further improvement to this utility model, the length of the air inlet pipe extending into the recovery box is at least ten centimeters.
[0015] The above technical solution facilitates the binding and fixing of the hose sleeve.
[0016] As a further improvement to this utility model, the air inlet pipe inside the recycling box has an outwardly protruding or inwardly recessed ring-shaped blocking area to block the movement of the rubber tube sleeve strap.
[0017] The above technical solution makes the binding end of the tubing sleeve less likely to move horizontally on the air inlet tube, thus improving its stability.
[0018] As a further improvement to this utility model, the opening of the recycling bin is located at its top, and a counterweight and a handle are embedded in the cover.
[0019] The above technical solution facilitates the opening and closing of the recycling bin lid by staff.
[0020] As a further improvement to this utility model, the surface of the filter sleeve is uniformly distributed with metal support rings.
[0021] The above technical solution improves the strength of the filter sleeve, making it less prone to damage.
[0022] As a further improvement to this utility model, the distance between the filter screen sleeve and the inner wall of the recycling box is at least three centimeters.
[0023] The above technical solution ensures that the filter screen sleeve has sufficient space to shake within the recycling chamber.
[0024] The technical effects and advantages of this utility model are as follows:
[0025] 1. This utility model utilizes the filtering effect of the filter screen sleeve, combined with the shaking effect of the rubber tube sleeve impacted by the airflow, so that the filter screen sleeve is less likely to be clogged by cement dust while filtering.
[0026] 2. Compared with the prior art, the actual filtration area of this device is larger, and it shakes with the airflow, making it less prone to clogging and ensuring its airflow and recovery effect.
[0027] 3. In this utility model, cement dust is collected in a filter screen sleeve, making it easy to remove quickly. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 This is a top-view perspective view of the overall structure of this utility model in an exploded state.
[0030] Figure 2 This is a top-view perspective of the overall structure of this utility model from the left.
[0031] Figure 3 This is a top-view perspective view of the overall structure of this utility model from the right side.
[0032] Figure 4 This is a top-view perspective view of the air inlet pipe structure of this utility model.
[0033] Figure 5 This is a top-view perspective view of the powder collection mechanism structure of this utility model in an exploded state.
[0034] The names represented by the part numbers in the above diagram are as follows:
[0035] 100. Suction mechanism; 110. Recovery box; 111. Air inlet pipe; 112. Centrifugal fan; 113. Placement area; 114. Barrier area; 200. Powder collection mechanism; 211. Filter screen sleeve; 212. Rubber hose sleeve; 213. Support ring; Detailed Implementation
[0036] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0037] Example 1:
[0038] Refer to the attached diagram in the instruction manual. Figure 1-3 This utility model provides a dust recovery and treatment device for an environmentally friendly cement production line, including a suction mechanism 100 and a dust collection mechanism 200.
[0039] The suction mechanism 100 has a 5mm thick wall and a size of 800×600×1000mm. The surface has a 600×500mm rectangular opening (equipped with a rubber sealing strip type sealing cover). One end of the air inlet pipe 111 is connected to the dust source of the production line (such as the mill outlet or belt transfer point), and the other end extends into the inside of the collection box 110. The centrifugal fan 112 is connected to the air outlet of the collection box 110 through a flange.
[0040] Refer to the attached diagram in the instruction manual. Figure 5 The filter sleeve 211 in the dust collection mechanism 200 is made of polyester needle-punched felt (the filtration accuracy is suitable for cement dust). It is cylindrical (400mm in diameter and 600mm in length). Five stainless steel support rings 213 (400mm in diameter, 2mm in thickness, and 50mm apart) are evenly distributed on the surface. The bottom is tied with a nylon strap to form a bag. A 50mm gap is reserved between the filter sleeve 211 and the inner wall of the collection box 110 to ensure airflow space.
[0041] The tubing sleeve 212 is made of rubber (wall thickness 3mm, length 200mm) and has no holes. One end is attached to the air inlet tube 111 by a nylon strap (the strapping position is 100mm from the tube opening), and the other end is connected to the unstuck opening of the filter sleeve 211.
[0042] Preparation stage: Tighten one end of the filter screen sleeve 211 with a cable tie to form a bag, place it in the middle placement area 113 of the chamber of the recycling box 110, attach the rubber tube sleeve 212 to the end of the air tube 111, and tie it with two straps in a cross shape to ensure no air leakage. Finally, fix the sealing cap to the open end of the recycling box 110.
[0043] Negative pressure dust collection: Start the centrifugal fan 112 to create negative pressure in the recovery box 110, and the dust-laden airflow enters the rubber sleeve 212 from the air inlet pipe 111 at a certain speed;
[0044] Filtration and separation: The airflow carries dust into the filter screen 211, where the dust is trapped and purified. The air then passes through the filter screen 211 and is discharged by the fan.
[0045] Self-cleaning function: The high-speed airflow impacts the tube sleeve 212, causing it to oscillate periodically, which in turn causes the filter screen sleeve 211 to vibrate synchronously, causing the dust adhering to the inner wall to be shaken off and fall into the bottom of the filter screen sleeve 211.
[0046] Example 2:
[0047] Refer to the attached diagram in the instruction manual. Figure 4 The difference between this embodiment and the above embodiment is that: the placement area 113 is a circular placement area (diameter 450mm) formed by sinking 100mm from the bottom of the inner wall of the recycling bin 110, and has a built-in weighing component (with communication interface). The weighing component monitors the weight of dust in the filter sleeve 211 in real time. When the set threshold (such as 10kg) is reached, a cleaning prompt (sound alarm, buzzer) is issued.
[0048] The air inlet pipe 111 extends into the recovery box 110 with a length of 150mm (≥10cm requirement). The pipe body is provided with an annular blocking area 114 (outward protrusion height 5mm, width 10mm) to prevent the strap from slipping.
[0049] The sealing cap is embedded with a cast iron counterweight (weighing 5kg) and a stainless steel handle (150mm in length), which improves the sealing performance and ease of operation. The staff can open the sealing cap through the handle, untie the filter screen sleeve 211, pour out the collected dust, clean it, and then reinstall it.
[0050] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
Claims
1. A dust recovery treatment device for an environmentally friendly cement production line, comprising a suction mechanism (100), the suction mechanism (100) comprising a recovery tank (110) and a gas inlet pipe (111) and a centrifugal fan (112) in communication with the inside thereof, characterized in that: The surface of the recycling bin (110) is open, and a sealing cover is inserted to cover it; It also includes a powder collection mechanism (200), which includes a filter screen sleeve (211) placed inside the recycling bin (110) and open at both ends, with each opening tied with a rope; In addition, a rubber tube sleeve (212) is connected to another opening of the filter sleeve (211) and attached to the air inlet pipe (111) by a rope, and the surface of the rubber tube sleeve (212) is not perforated.
2. The dust recovery treatment apparatus for a cement production line according to claim 1, characterized by: The bottom of the inner wall of the recycling bin (110) is recessed to form a placement area (113) for inserting the filter screen sleeve (211) into the bin.
3. The dust recovery treatment apparatus for a cement production line according to claim 2, characterized by: A weighing component is placed at the bottom of the inner wall of the placement area (113).
4. The dust recovery treatment apparatus for a cement production line according to claim 1, characterized by: The length of the air inlet pipe (111) extending into the recovery box (110) is at least ten centimeters.
5. The dust recovery treatment apparatus for a cement production line according to claim 2, characterized by: The air inlet pipe (111) inside the recycling box (110) has an outward or inward protrusion forming a ring-shaped blocking area (114) to block the movement of the rubber tube sleeve (212) strap.
6. The dust recovery treatment apparatus for a cement production line according to claim 1, characterized by: The opening of the recycling bin (110) is located at its top, and a counterweight and a handle are embedded in the cover.
7. The dust recovery and treatment equipment for a cement production line according to claim 1, characterized in that: The surface of the filter sleeve (211) is uniformly distributed with metal support rings (213).
8. The dust recovery treatment apparatus for a cement production line according to claim 7, characterized by: The distance between the filter sleeve (211) and the inner wall of the recycling bin (110) is at least three centimeters.