Closed dust removal equipment for layered batching
By installing fan blades inside the feeding pipe to form an air duct to capture dust and re-transport it, the problem of dust diffusion during the stratified batching process is solved, thereby reducing the impact of dust on health and the environment, as well as raw material waste, and improving productivity.
Patent Information
- Application Number
- CN202423250724.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-27
AI Technical Summary
During the stratified batching process, a large amount of dust is generated when powdered materials are fed due to factors such as wind, which affects health and the environment, and also leads to raw material waste and reduced productivity.
Design a closed dust removal device that uses fan blades inside the feeding pipe to form an air duct, captures flying dust and sucks it into the air duct, then transports it back to the feeding pipe, and combines a stirring device to prevent dust from spreading.
It effectively reduces dust generation, protects health, avoids material waste, and improves production efficiency.
Smart Images

Figure CN223560857U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material feeding and dust removal technology, specifically a closed dust removal device for layered batching. Background Technology
[0002] A closed-loop dust collection system for stratified batching is designed to collect and treat dust generated during the stratified batching process. This equipment is typically used in industrial environments requiring precise batching and characterized by severe dust pollution, such as the steel, cement, mining, and chemical industries. It is a comprehensive system integrating sealing, dust collection, and exhaust functions. Its main function is to collect, purify, and discharge dust generated during the stratified batching process through components such as a sealed hood, exhaust duct, and dust collector, preventing dust from harming the environment and human health. The system primarily consists of a sealed hood, exhaust duct, dust collector, and fan. The sealed hood encloses the dust source to prevent dust diffusion; the exhaust duct connects the sealed hood and the dust collector, transporting dust-laden air to the dust collector for purification; the dust collector is the core component, separating dust from the air through mechanical force, electrostatic force, or filtration; and the fan provides power, drawing dust-laden air into the dust collection system and discharging purified air.
[0003] A search revealed that the patent document (authorization announcement number CN220310350U) includes a fixing mechanism to ensure the stability of the equipment. This fixing mechanism is equipped with a mixing mechanism for uniformly mixing the materials used in the preparation of refractory materials. Between the fixing mechanism and the mixing mechanism is a dust removal mechanism that collects the powder raised during material injection and re-injects it into the equipment. During the injection stage, the pump and cylinder create a negative pressure in the storage hopper, sealing the lower end of the hopper. This allows the powder raised during injection to be drawn into the storage hopper through the adsorption ring and the first feed pipe, thus eliminating dust. After injection, the pump can be paused and the cylinder reset, allowing the powder in the storage hopper to enter the mixing cylinder and mix with other materials under the combined effects of gravity and vibrations generated by the equipment, ensuring the accuracy of the batching process.
[0004] However, the above-mentioned device still has shortcomings:
[0005] When feeding materials, such as lime, a large amount of dust is generated due to wind and other natural factors. If this dust is not collected in time, it will not only affect the health of the workers and the surrounding natural environment, but also lead to a reduction in raw materials and thus reduce productivity. Utility Model Content
[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a closed dust collection device for layered batching, which solves the problem that during material feeding operations, such as with powdery materials like lime, a large amount of dust is generated due to wind and other natural factors. If this dust cannot be collected in time, it will not only affect the health of workers and the surrounding natural environment, but also lead to a reduction in raw materials, thereby reducing productivity.
[0007] To achieve the above objectives, this utility model proposes a closed dust removal device for layered batching, comprising a working fixed plate, a feeding pipe arranged above the working fixed plate, and square blocks fixedly connected to the side walls of the feeding pipe. A circular through hole is opened inside each square block, and an air duct is arranged inside the square block. The top of the air duct extends above the feeding pipe, and the bottom of the air duct is fixedly connected to the bottom side wall of the feeding pipe and communicates with the feeding pipe. A fixed limiting plate is fixedly connected inside the circular through hole, and a drive shaft is rotatably connected inside the fixed limiting plate. A fan blade is fixedly connected to the bottom of the drive shaft.
[0008] Preferably, a bottom bracket is fixedly connected to the bottom of the working fixing plate, a plurality of uprights are fixedly connected to the top of the working fixing plate, and crossbars are fixedly connected to the side walls of the uprights.
[0009] Preferably, a short rod is fixedly connected to the top of the upright, a straight plate is fixedly connected to the side wall of the short rod, the feeding pipe is fixedly connected to the end of the straight plate away from the short rod, and a vibration device is provided above the straight plate.
[0010] Preferably, a limiting rod is fixedly connected to the side wall of the crossbar, and a limiting ring is fixedly connected to the end of the limiting rod away from the crossbar, with a stirring tank sleeved inside the limiting ring.
[0011] Preferably, a discharge port is fixedly connected to the bottom of the mixing tank, a drive source is fixedly connected to the end of the mixing tank, a stirring shaft is rotatably connected inside the drive source, a plurality of stirring shafts are fixedly connected to the side wall of one end of the mixing tank, and a feeding hole is opened on the side wall of the mixing tank.
[0012] Preferably, the bottom of the feeding pipe is located inside the feeding hole.
[0013] Preferably, the fixed limiting plate has an inner groove, and a clamping plate is fixedly connected to the side wall of the drive shaft, the clamping plate being rotatably connected within the inner groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] During material feeding, the fan blades begin to rotate, forming an air duct. The flying dust is captured by the fan blades and sucked into the air duct. After being transported through the air duct, it returns to the feeding pipe. This operation not only reduces dust generation during material feeding and minimizes the harm of dust to workers, but also avoids material waste, thereby effectively improving productivity. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the feeding pipe structure of this utility model;
[0018] Figure 3 For the present utility model Figure 2 Schematic diagram of the structure at point A in the middle;
[0019] Figure 4 This is a schematic diagram of the card plate structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the internal structure of the mixing tank of this utility model.
[0021] In the diagram: 1. Working fixing plate; 11. Bottom bracket; 12. Upright pole; 13. Horizontal bar; 2. Limiting rod; 21. Limiting ring; 3. Short rod; 31. Straight plate; 32. Vibration device; 4. Feeding pipe; 5. Block; 501. Circular through hole; 51. Air duct; 52. Fixed limiting plate; 521. Inner groove; 53. Drive shaft; 531. Clamping plate; 54. Fan blade; 6. Mixing tank; 61. Discharge port; 62. Drive source; 63. Feeding hole; 64. Mixing shaft; 65. Mixing shaft. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] like Figure 1-5 As shown, a closed dust removal device for layered batching includes a working fixed plate 1, a bottom support 11 fixedly connected to the bottom of the working fixed plate 1, a plurality of uprights 12 fixedly connected to the top of the working fixed plate 1, and crossbars 13 fixedly connected to the side walls of the uprights 12.
[0024] A feeding pipe 4 is provided above the working fixed plate 1. A block 5 is fixedly connected to the side wall of the feeding pipe 4. A circular through hole 501 is opened inside the block 5. An air duct 51 is provided inside the block 5. The top of the air duct 51 extends to the top of the feeding pipe 4. The bottom of the air duct 51 is fixedly connected to the bottom side wall of the feeding pipe 4 and communicates with the feeding pipe 4. A fixed limiting plate 52 is fixedly connected inside the circular through hole 501. A drive shaft 53 is rotatably connected inside the fixed limiting plate 52. A fan blade 54 is fixedly connected to the bottom of the drive shaft 53.
[0025] During material feeding, an external motor is connected to the device. The motor pin is connected to the drive shaft 53, and the motor drives the drive shaft 53 to rotate. At this time, the fan blades 54 start to rotate. The rotation of the fan blades 54 forms an air duct. The flying dust is captured by the fan blades 54 and sucked into the air duct 51. After being transported by the air duct 51, it returns to the feeding pipe 4. This operation not only reduces the generation of dust during material feeding and reduces the harm of dust to the workers, but also avoids material waste, thereby effectively improving productivity.
[0026] A short rod 3 is fixedly connected to the top of the upright 12, and a straight plate 31 is fixedly connected to the side wall of the short rod 3. The feeding pipe 4 is fixedly connected to the end of the straight plate 31 away from the short rod 3, and a vibration device 32 is installed above the straight plate 31.
[0027] A limiting rod 2 is fixedly connected to the side wall of the crossbar 13. A limiting ring 21 is fixedly connected to the end of the limiting rod 2 away from the crossbar 13. A mixing tank 6 is sleeved inside the limiting ring 21.
[0028] A discharge port 61 is fixedly connected to the bottom of the mixing tank 6, and a drive source 62 is fixedly connected to the end of the mixing tank 6. A stirring shaft 64 is rotatably connected inside the drive source 62. Several stirring shafts 65 are fixedly connected to the side wall of one end of the stirring shaft 64 inside the mixing tank 6. A feeding hole 63 is opened on the side wall of the mixing tank 6.
[0029] The bottom of the feeding pipe 4 is set in the feeding hole 63. The fixed limiting plate 52 has an inner groove 521. The side wall of the drive shaft 53 is fixedly connected to the clamping plate 531, which is rotatably connected in the inner groove 521.
[0030] Working principle: When feeding materials, the fan blade 54 starts to rotate. The rotation of the fan blade 54 forms an air duct. At this time, the flying dust will be captured by the fan blade 54 and sucked into the air duct 51. After being transported by the air duct 51, it returns to the feeding pipe 4.
[0031] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.
Claims
1. A closed dust removal apparatus for layered dosing, characterized in that Including work fixed plate (1), the upper part of work fixed plate (1) is provided with feeding pipe (4), the side wall of feeding pipe (4) is fixedly connected with square (5), the inside of square (5) is provided with circular through hole (501), the inside of square (5) is provided with air pipe (51), the top of air pipe (51) extends to the upper part of feeding pipe (4), the bottom of air pipe (51) is fixedly connected in the bottom side wall of feeding pipe (4) and is communicated with feeding pipe (4), the inside of circular through hole (501) is fixedly connected with fixed limiting plate (52), the inside of fixed limiting plate (52) is rotatably connected with driving shaft (53), the bottom of driving shaft (53) is fixedly connected with fan blade (54).
2. A closed dust extraction apparatus for layered dosing according to claim 1, characterized in that The bottom of the work fixed plate (1) is fixedly connected with the bottom support (11), and the top of the work fixed plate (1) is fixedly connected with a plurality of vertical rods (12), and the side wall of the vertical rod (12) is fixedly connected with the horizontal rod (13).
3. A closed dust extraction apparatus for layered dosing according to claim 2, characterized in that The top of the vertical rod (12) is fixedly connected with the short rod (3), the side wall of the short rod (3) is fixedly connected with the straight plate (31), and the feeding pipe (4) is fixedly connected at the end of the straight plate (31) away from the short rod (3), and the upper part of the straight plate (31) is provided with the vibrating device (32).
4. A closed dust extraction apparatus for layered dosing according to claim 2, characterized in that The side wall of the horizontal rod (13) is fixedly connected with the limiting rod (2), one end of the limiting rod (2) away from the horizontal rod (13) is fixedly connected with the limiting ring (21), and the inside of the limiting ring (21) is sleeved with the stirring barrel (6).
5. A closed dust extraction apparatus for layered dosing according to claim 4, characterized in that The bottom of the stirring barrel (6) is fixedly connected with the discharge port (61), the end of the stirring barrel (6) is fixedly connected with the driving source (62), the inside of the driving source (62) is rotatably connected with the stirring shaft (64), the side wall of one end of the stirring barrel (6) is fixedly connected with a plurality of stirring shafts (65), and the side wall of the stirring barrel (6) is provided with the feeding hole (63).
6. A closed dust extraction apparatus for layered dosing according to claim 5, characterized in that The bottom of the feeding pipe (4) is arranged in the feeding hole (63).
7. A closed dust extraction apparatus for layered dosing according to claim 1, characterized in that The inside of the fixed limiting plate (52) is provided with an inner groove (521), the side wall of the driving shaft (53) is fixedly connected with the clamping plate (531), and the clamping plate (531) is rotatably connected in the inner groove (521).
Citation Information
Patent Citations
Batching equipment with dust removal function
CN220310350U