Soda ash negative pressure pneumatic conveying system based on roots blower
The negative pressure pneumatic conveying system using Roots blowers solves the problems of soda ash material spillage and dust dispersion, achieving environmental protection and protection of mechanical components, providing clean air emissions and reducing noise.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINALCO ENVIRONMENTAL PROTECTION & ENERGY SAVING GROUP CO LTD GUIZHOU BRANCH
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, the open conveying of soda ash leads to material spillage and dust emission, causing environmental pollution, and the mechanical moving parts are prone to damage.
A negative pressure pneumatic conveying system based on a Roots blower is adopted, including a Roots blower, an exhaust duct, an exhaust duct, a cyclone separator, and a pulse bag filter. Soda ash powder is conveyed through negative pressure airflow, and the duct is installed in a soundproof room for the Roots blower to reduce noise impact.
It effectively prevents material spillage and dust dispersion, protects mechanical parts, reduces environmental pollution and noise interference, and achieves clean air emissions.
Smart Images
Figure CN224547443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pneumatic conveying system technology, and in particular to a soda ash negative pressure pneumatic conveying system based on a Roots blower. Background Technology
[0002] In the chemical and glass manufacturing industries, soda ash (sodium carbonate) is a bulk granular raw material, and its transportation from the packaging area to the storage warehouse has long relied on mechanical conveying equipment such as screw conveyors and bucket elevators.
[0003] Open conveying systems (screw conveyors, bucket elevators) cause material spillage and dust emission, resulting in environmental pollution. Furthermore, soda ash is highly abrasive (Mohs hardness 1.5-2.0), and the mechanical moving parts (such as screw blades and bucket elevator chains) directly contact the material, necessitating frequent shutdowns to replace core components. Therefore, this application provides a soda ash negative pressure pneumatic conveying system based on a Roots blower to meet these requirements. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a negative pressure pneumatic conveying system for soda ash based on a Roots blower, which can prevent material spillage and dust emission during open conveying (screw conveyor, bucket elevator) processes, thereby preventing environmental pollution.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A negative pressure pneumatic conveying system for soda ash based on a Roots blower includes: Roots blower, and exhaust duct connected to the inlet of the Roots blower and the outlet of the Roots blower; The dust removal equipment includes a cyclone separator and a pulse bag filter connected in series from bottom to top. The top of the dust removal equipment is connected to an exhaust pipe, and the lower cyclone separator of the dust removal equipment is connected to a feeding pipe. The bottom of the dust removal equipment is connected to the storage silo via a discharger.
[0006] Furthermore, the feeding pipe is connected to a suction hose, which is suspended by an electric hoist.
[0007] Furthermore, a silencer is also installed on the exhaust duct.
[0008] Furthermore, the Roots blower is installed in a soundproof room, and the exhaust pipe, ventilation pipe, and feeding pipe are all arranged in the soundproof room.
[0009] Furthermore, the cyclone separator has a processing capacity of 2000 m³ / h, the pulse bag filter has a filtration area of 40 m², a filter bag precision of 5 μm, and a cleaning pressure of 0.6 MPa.
[0010] Compared with the prior art, this utility model has at least the following beneficial effects: This invention utilizes a Roots blower to generate negative pressure for conveying soda ash, avoiding the dust spillage that occurs with open conveying systems and preventing damage to mechanical parts caused by contact between the soda ash and moving parts. The soda ash powder is conveyed through a feeding pipe to a dust removal system, where it is filtered by a cyclone separator and a pulse-jet bag filter, resulting in clean air being discharged and preventing air pollution. The exhaust pipes, ventilation pipes, and feeding pipes at the Roots blower operation point are all located within a soundproof enclosure for the Roots blower, while the suction hose is located outside the soundproof enclosure, effectively isolating it from noise pollution. Attached Figure Description
[0011] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.
[0012] Figure 1 This is a schematic diagram of the structure of the soda ash negative pressure pneumatic conveying system based on a Roots blower according to this utility model.
[0013] Figure 2 This is a schematic diagram of the structural layout of the Roots blower room in the system of this utility model; Figure 3 This is a schematic diagram of the dust removal equipment in the system of this utility model.
[0014] [Figure Labels] 1. Ton bag; 2. Roots blower; 21. Soundproof room; 3. Suction hose; 4. Electric hoist; 5. Storage silo; 6. Unloader; 7. Dust removal equipment; 71. Cyclone separator; 72. Pulse bag dust collector; 8. Exhaust duct; 9. Feeding duct; 10. Ventilation duct.
[0015] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation
[0016] The following is a detailed description of a soda ash negative pressure pneumatic conveying system based on a Roots blower provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.
[0017] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0018] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0019] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.
[0020] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.
[0021] like Figure 1As shown, an embodiment of this utility model provides a soda ash negative pressure pneumatic conveying system based on a Roots blower, comprising: The dust collector includes a Roots blower 2, an exhaust duct 8 connected to the inlet of the Roots blower 2, and an exhaust duct 10 connected to the outlet of the Roots blower 2; a dust removal device 7, which includes a cyclone separator 71 and a pulse bag filter 72 connected in series from bottom to top along the airflow direction, with the exhaust duct 8 connected to the top of the dust removal device 7 and above the pulse bag filter 72, and a feeding duct 9 connected to the lower part of the dust removal device 7, below the pulse bag filter 72, and in the cyclone separator 71; and a storage bin 5, with the bottom of the dust removal device 7 connected to the storage bin 5 via a discharger 6.
[0022] The feeding pipe 9 is connected to a suction hose 3, which is suspended at a high position by an electric hoist 4 and can be flexibly moved and inserted into the ton bag 1.
[0023] The exhaust duct 10 is also equipped with a silencer, specifically a silencer cover or other silencer structure.
[0024] The Roots blower 2 is installed in the Roots blower soundproof room 21, and the inlet ends of the exhaust pipe 10, the ventilation pipe 8, and the feeding pipe 9 are all arranged in the soundproof room.
[0025] The cyclone separator 71 has a processing capacity of 2000 m³ / h, the pulse bag filter 72 has a filtration area of 40 m², a filter bag precision of 5 μm, and a dust removal pressure of 0.6 MPa.
[0026] The working principle of this utility model is as follows: the suction hose 3 is inserted into the ton bag 1, the Roots blower 2 is started, and the high-pressure air generated by the Roots blower 2 forms an airflow. A negative pressure is formed in the dust removal equipment 7, which allows the bulk soda ash powder to be transported to the cyclone separator 71 through the feeding pipe 9. The soda ash powder undergoes primary filtration through the cyclone separator 71, and secondary filtration is performed by the pulse bag dust collector 72 above. The filtered clean air is extracted through the exhaust pipe 8 and discharged through the exhaust pipe 10. The filtered soda ash powder is temporarily stored in the cyclone separator 71. After the Roots blower 2 is turned off, the unloader 6 is opened to discharge the soda ash to the storage silo 5 for storage.
[0027] When the Roots blower 2 is working, the front ends of the exhaust pipe 8, the ventilation pipe 10, and the feeding pipe 9 connected to the Roots blower 2 are all located in the soundproof room 21 of the Roots blower. The suction hose 3 is outside the soundproof room 21 of the Roots blower, which is convenient for the staff to operate and is not affected by noise.
[0028] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A soda ash negative pressure pneumatic conveying system based on a Roots blower, characterized in that, include: Roots blower (2), and exhaust duct (8) connected to the inlet of Roots blower (2), and exhaust duct (10) connected to the outlet; The dust removal equipment (7) includes a cyclone separator (71) and a pulse bag dust collector (72) connected in series from bottom to top. The top of the dust removal equipment (7) is connected to an exhaust pipe (8), and the cyclone separator (71) is connected to a feeding pipe (9). The bottom of the dust removal equipment (7) is connected to the storage silo (5) via a discharger (6).
2. The soda ash negative pressure pneumatic conveying system based on a Roots blower according to claim 1, characterized in that, The feeding pipe (9) is connected to a suction hose (3), which is suspended by an electric hoist (4).
3. The soda ash negative pressure pneumatic conveying system based on a Roots blower according to claim 1, characterized in that, A silencer is also installed on the exhaust duct (10).
4. The soda ash negative pressure pneumatic conveying system based on a Roots blower according to claim 1, characterized in that, The Roots blower (2) is installed in the Roots blower soundproof room (21), and the exhaust pipe (10), the ventilation pipe (8), and the feeding pipe (9) are all arranged in the soundproof room.
5. The soda ash negative pressure pneumatic conveying system based on a Roots blower according to claim 1, characterized in that, The cyclone separator (71) has a processing air volume of 2000 m³ / h, and the pulse bag dust collector (72) has a filtration area of 40 m², a filter bag precision of 5 μm, and a dust removal pressure of 0.6 MPa.