Pneumatic conveying and spiral conveying combined spiral conveyor
By combining pneumatic conveying with a screw conveyor, the problems of dust pollution and blockage in powder loading have been solved, enabling a highly efficient and precise container loading process and improving material filling efficiency.
Patent Information
- Application Number
- CN202520435149.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In existing technologies, dust pollution and blockage problems exist during the powder loading process. Traditional screw conveyors are prone to blockage and have low efficiency when overloaded, which cannot meet the high-efficiency requirements of container loading.
The screw conveyor, which combines pneumatic conveying and screw conveying, integrates pneumatic feeding pipelines and screw conveying pipelines to form a complementary advantage of pneumatic and mechanical conveying, achieving dynamic balance and ensuring high efficiency and metering accuracy.
It improved the efficiency of container loading, reduced dust pollution, avoided blockages, and increased material filling efficiency.
Smart Images

Figure CN223792334U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of container loading technology, and in particular to a screw conveyor that combines pneumatic conveying and screw conveying. Background Technology
[0002] Powder loading presents a significant challenge in loading and unloading technology, especially when using containers. Powder transportation methods include tipping and screw conveyor systems. Tipping conveyors often connect the container's inner liner to the transport system, which can easily generate dust, leaks, and pollution. Installing dust collectors incurs additional costs, increasing transportation costs. Screw conveyors can have fully enclosed troughs, enabling sealed transport to reduce environmental pollution. However, they are sensitive to overloading and require uniform feeding to prevent blockages. With the increasing demand for logistics transportation year after year, improving the efficiency of container loading is now imperative, as traditional screw conveyor methods are no longer sufficient to meet the needs of container loading. Utility Model Content
[0003] In response to the aforementioned technical problems, a screw conveyor combining pneumatic and screw conveying is provided.
[0004] The technical means adopted in this utility model are as follows:
[0005] A combined pneumatic and screw conveyor includes a pneumatic feed pipe and a screw conveying pipe. The feed end of the pneumatic feed pipe is connected to a pneumatic feed hopper, and the feed end of the screw conveying pipe is connected to a screw feed hopper. The pneumatic feed pipe is externally placed on the screw conveying pipe, and the two are integrated on a screw conveying support. The discharge ends of both the pneumatic feed pipe and the screw conveying pipe are connected to the inner liner of a container.
[0006] Furthermore, the spiral conveying pipeline is internally equipped with spiral blades, and the input end of the spiral blades is connected to the motor via a speed reducer.
[0007] Furthermore, the inlet of the spiral conveying pipeline is located at the upper end of the pipeline, and the outlet of the spiral conveying pipeline is located at the end of the pipeline.
[0008] Furthermore, the pneumatic feed pipe is a rigid pipe, the input end of the pneumatic feed pipe is connected to the pneumatic feed hopper through a pneumatic hose, and the discharge port of the pneumatic feed pipe is located at the end of the rigid pipe.
[0009] This invention has the following advantages: Through structural innovation, it achieves a complementary advantage between the pneumatic conveying of the pneumatic feed pipe and the mechanical conveying of the screw conveyor. When the pneumatic feed pipe and the screw conveyor work together, the high-speed continuity of the pneumatic system and the stability and controllability of the screw system form a dynamic balance, maintaining the high efficiency of pneumatic conveying while also possessing the metering accuracy of mechanical conveying. It can simultaneously perform container filling of materials, effectively improving work efficiency compared to traditional screw conveyor methods. Attached Figure Description
[0010] 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.
[0011] Figure 1 This is the front view of the present utility model.
[0012] Figure 2 This is a top view of the present invention.
[0013] Figure 3 This is the left view of the present invention.
[0014] Figure 4 for Figure 3 CC section view.
[0015] Figure 5 This is a schematic diagram of an embodiment after the application of this utility model.
[0016] In the diagram: 1. Motor; 2. Spiral blade; 3. Feed end of spiral conveyor pipeline; 4. Discharge end of spiral conveyor pipeline; 5. Pneumatic feed pipeline; 6. Discharge end of pneumatic feed pipeline; 7. Spiral conveyor support; 8. Container; 9. Container truck; 10. Pneumatic conveying hose; 11. Pneumatic feed hopper; 12. Spiral feed hopper. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, 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.
[0018] like Figures 1-5As shown in the figure, this utility model embodiment discloses a screw conveyor combining pneumatic and screw conveying, including a pneumatic feed pipe 5 and a screw conveying pipe. The feed end of the pneumatic feed pipe is connected to the pneumatic feed hopper 11, and the feed end 3 of the screw conveying pipe is connected to the screw feed hopper 12. The pneumatic feed pipe 5 is externally placed on the screw conveying pipe, and the two are integrated on the screw conveying support 7. The discharge end 6 of the pneumatic feed pipe and the discharge end 4 of the screw conveying pipe are both connected to the inner liner of the container.
[0019] Furthermore, the spiral conveying pipeline is equipped with spiral blades 2 inside, and the input end of the spiral blades is connected to the motor 1 through a reducer.
[0020] Furthermore, the inlet of the spiral conveying pipeline is located at the upper end of the pipeline, and the outlet of the spiral conveying pipeline is located at the end of the pipeline.
[0021] Furthermore, the pneumatic feed pipe is a rigid pipe, the input end of the pneumatic feed pipe is connected to the pneumatic feed hopper through the pneumatic hose 10, and the discharge port of the pneumatic feed pipe is located at the end of the rigid pipe.
[0022] As an expandable implementation, the spiral conveyor support can provide vertical support for the spiral conveying pipeline and the pneumatic feeding pipeline, or it can provide horizontal support for the spiral conveying pipeline and the pneumatic feeding pipeline, ensuring that the main bodies of the two pipelines are set in parallel, and that the discharge ends of the spiral conveying pipeline and the pneumatic feeding pipeline can be inserted into the preset depth of the container to be loaded.
[0023] In addition, a rubber shock-absorbing pad can be installed at the bottom of the spiral conveyor support to prevent pipeline vibration during the material conveying process from affecting related equipment.
[0024] As an expandable implementation, the pneumatic feeding pipeline can be a single pipeline, or, depending on the different filling material requirements, a spiral guide groove can be set in the pipeline to enhance the gas-solid mixing effect.
[0025] like Figure 5 The diagram illustrates the application of this invention to a specific implementation scenario. In this embodiment, due to the high filling efficiency requirements of container 8, simultaneous filling of material bins on both sides is necessary. Therefore, the pneumatic conveying system and the screw conveyor system are placed on their respective container trucks 9. After connecting the inlet and outlet of the pneumatic conveying system and the screw conveyor system, material filling into the container begins. Overall efficiency is effectively improved.
[0026] As another possible implementation, when the interior of the container is divided into multiple areas, the output ends of the spiral conveyor pipe and the pneumatic feed pipe can be placed in different preset areas to convey different materials. For example, the pneumatic system can handle light powder materials at a relatively fast speed, while the spiral system has a stronger ability to handle high-viscosity materials.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A screw conveyor combining pneumatic and screw conveying, characterized in that, It includes a pneumatic feeding pipeline and a screw conveyor pipeline. The feed end of the pneumatic feeding pipeline is connected to the pneumatic feeding hopper, and the feed end of the screw conveyor pipeline is connected to the screw feeding hopper. The pneumatic feeding pipeline is placed outside the screw conveyor pipeline, and the two are integrated on the screw conveyor support. The discharge ends of the pneumatic feeding pipeline and the screw conveyor pipeline are both connected to the inner liner of the container.
2. The screw conveyor combining pneumatic and screw conveying according to claim 1, characterized in that, The spiral conveying pipeline is equipped with spiral blades inside, and the input end of the spiral blades is connected to the motor through a speed reducer.
3. The screw conveyor combining pneumatic conveying and screw conveying according to claim 1, characterized in that, The feed inlet of the spiral conveying pipeline is located at the upper end of the pipeline, and the discharge outlet of the spiral conveying pipeline is located at the lower end of the pipeline.
4. The screw conveyor combining pneumatic and screw conveying according to claim 1, characterized in that, The pneumatic feed pipe is made of rigid pipe. The input end of the pneumatic feed pipe is connected to the pneumatic feed hopper through a pneumatic hose, and the outlet of the pneumatic feed pipe is located at the end of the rigid pipe.