Dense-phase pneumatic pressure feeding device
By installing an arc-shaped heater and a spiral guide bar in the dense phase pneumatic conveying device, the problem of high humidity and high viscosity materials adhering in the pipeline was solved, and stable material conveying was achieved.
Patent Information
- Application Number
- CN202423035897.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing dense phase pneumatic conveying devices tend to stick to the inner wall of pipes when conveying materials with high moisture and viscosity, causing blockages and affecting the normal conveying of materials.
Arc heaters are installed at both ends of the conveying pipeline for drying. A flow aid is added to reduce the moisture and adhesion of the material. Spiral guide strips are installed inside the pipeline to improve the flowability and stability of the material. At the same time, inclined baffles are installed inside the feed duct to prevent gas backflow.
By using a heater for drying and designing a spiral guide bar, the moisture content of the material is reduced, the material's flowability is improved, adhesion is reduced, stable material conveying is ensured, and blockage is avoided.
Smart Images
Figure CN223534428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material conveying equipment technology, specifically a dense phase pneumatic conveying device. Background Technology
[0002] Dense phase pneumatic conveying is a device that uses gas (usually compressed air) to transport solid materials in pipelines. In dense phase conveying, the material flows in the pipeline at a high concentration (a high proportion of solid particles in the total volume). The principle is to apply a certain pressure of gas at the beginning of the conveying pipeline, causing the gas to mix with the solid particles, and using the kinetic energy of the gas to propel the solid material forward in the pipeline.
[0003] Existing dense phase pneumatic conveying devices still have the following problems when in use: For materials with high moisture and high viscosity, they are prone to adhering to the inner wall of the pipeline or the inside of equipment such as the conveying tank during the conveying process, and gradually accumulate to form blockages. For example, when conveying wet coal powder, the coal powder is prone to clump and adhere to the pipeline, hindering the normal conveying of materials. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a dense-phase pneumatic conveying device, which solves the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a dense phase pneumatic conveying device, comprising an installation support mechanism, the installation support mechanism comprising a base, two supports symmetrically fixedly connected to the top center of the base, a material conveying mechanism fixedly connected to the top of the two supports, the material conveying mechanism comprising a conveying pipe fixedly connected to the top of the two supports, an air supply mechanism provided at one end of the conveying pipe, a heating mechanism provided at each end of the conveying pipe, an inlet provided above one side of the conveying pipe, an inlet guide tube fixedly installed at the top of the conveying pipe and at the opening of the inlet, the heating mechanism comprising arc-shaped heaters symmetrically arranged at the front and rear ends of the conveying pipe, a heating element provided at each of the two arc-shaped heaters facing each other, a fixed frame fixedly connected to each of the two arc-shaped heaters at opposite ends, and a base fixedly connected to the bottom end of the fixed frame.
[0008] As a further improvement of this utility model: mounting holes are provided between the upper and lower side walls at the four corners of the base, and a spiral guide strip is fixedly connected to the inner side wall of the conveying pipe.
[0009] As a further embodiment of this utility model: a discharge conduit is fixedly installed at the opening of the other end of the conveying pipe, an inclined baffle is fixedly connected to one end of the inner wall of the inlet conduit, and a feed hopper is fixedly connected to the opening at the upper end of the inlet conduit.
[0010] As a further embodiment of this utility model: the air delivery mechanism includes an air compressor fixedly installed at one end of the delivery pipeline opening, an air outlet pipe fixedly installed at the air outlet of the other end of the air compressor, the air outlet pipe being fitted into the inner wall of the delivery pipeline, an air inlet pipe fixedly installed at one end of the air compressor inlet, and a control panel provided at the front end of the air compressor.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. In this utility model, by setting a heating mechanism for material conveying, for materials with high humidity, arc-shaped heaters are set at both ends of the conveying pipe. The arc-shaped heaters can dry the conveyed material in the conveying pipe, reduce the moisture content of the material, and improve its fluidity. In addition, for materials with high viscosity, an appropriate amount of flow aid can be added or surface treatment can be performed to reduce the adhesion between materials.
[0013] 2. In this utility model, a spiral guide strip is provided in the conveying pipe to guide the material in the conveying pipe and improve the stability of the material conveying. In addition, an inclined baffle is provided at one end of the feed pipe to play a certain role in preventing gas backflow. Attached Figure Description
[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;
[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;
[0016] Figure 3 This is a perspective view of the mounting support mechanism and heating mechanism of this utility model;
[0017] Figure 4 This is a perspective view of the air supply mechanism and material conveying mechanism of this utility model.
[0018] In the diagram: 1. Mounting support mechanism; 2. Heating mechanism; 3. Material conveying mechanism; 4. Air supply mechanism; 11. Base; 12. Mounting hole; 13. Support; 21. Fixing frame; 22. Arc heater; 23. Heating element; 31. Conveying pipe; 32. Spiral guide strip; 33. Discharge conduit; 34. Feed conduit; 35. Inclined stop; 36. Feed hopper; 41. Air compressor; 42. Control panel; 43. Air outlet pipe; 44. Air inlet pipe. Detailed Implementation
[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Please see Figures 1-4In this embodiment of the utility model, a dense phase pneumatic conveying device includes a mounting support mechanism 1. The mounting support mechanism 1 includes a base 11, with two supports 13 symmetrically fixedly connected to the middle of the top of the base 11. A material conveying mechanism 3 is fixedly connected to the top of the two supports 13. The material conveying mechanism 3 includes a conveying pipe 31 fixedly connected to the top of the two supports 13. An air supply mechanism 4 is provided at one end of the conveying pipe 31. A heating mechanism 2 is provided at each of the front and rear ends of the conveying pipe 31. An inlet is opened on the upper side of one side of the conveying pipe 31. A feed guide 34 is fixedly installed at the top of the conveying pipe 31 and at the opening of the feed inlet. The heating mechanism 2 includes two supports symmetrically connected to the base 11. Arc heaters 22 are installed at both ends of the conveying pipe 31. Each arc heater 22 has a heating element 23 at one end facing each other, and a fixed frame 21 is fixedly connected to one end of each arc heater 22 away from each other. The bottom end of the fixed frame 21 is fixedly connected to the base 11. The whole is equipped with a heating mechanism 2 for material conveying. For materials with high humidity, arc heaters 22 are installed at both ends of the conveying pipe 31. The arc heaters 22 can dry the conveyed materials in the conveying pipe 31, reduce the moisture content of the materials, and improve their flowability. In addition, for materials with high viscosity, an appropriate amount of flow aid can be added or surface treatment can be performed to reduce the adhesion between materials.
[0023] Mounting holes 12 are provided between the upper and lower side walls at the four corners of the base 11. The mounting components can be fixed by using the mounting holes 12 on the base 11. A spiral guide strip 32 is fixedly connected to the inner side wall of the conveying pipe 31, which plays a spiral guiding role in the conveying of materials in the conveying pipe 31 and improves the stability of material conveying.
[0024] A discharge conduit 33 is fixedly installed at the other end of the conveying pipe 31 to guide the material discharge. An inclined baffle 35 is fixedly connected to one end of the inner wall of the feed conduit 34 to prevent backflow of gas. A feed hopper 36 is fixedly connected to the upper end of the feed conduit 34 to guide the feeding.
[0025] The air delivery mechanism 4 includes an air compressor 41 fixedly installed at one end of the delivery pipeline 31. An air outlet pipe 43 is fixedly installed at the air outlet of the other end of the air compressor 41. The air outlet pipe 43 is fitted into the inner wall of the delivery pipeline 31. An air inlet pipe 44 is fixedly installed at one end of the air compressor 41. A control panel 42 is provided at the front end of the air compressor 41. The air compressor 41 can be controlled to work through the control panel 42. Air is introduced through the air inlet pipe 44 and discharged through the air outlet pipe 43.
[0026] The working principle of this utility model is as follows: In dense phase conveying, the material is fed through the feed hopper 36 and enters the conveying pipe 31 through the feed conduit 34. The material flows in the conveying pipe 31 with a high concentration (the proportion of solid particles in the total volume is high). By applying a certain pressure of gas through the outlet pipe 43 of the air compressor 41 at the beginning of the conveying pipe 31, the gas and solid particles form a mixed flow. The kinetic energy of the gas is used to propel the solid material forward in the conveying pipe 31.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A dense phase pneumatic conveying device, comprising an installation support mechanism (1), wherein the installation support mechanism (1) comprises a base (11), wherein two supports (13) are symmetrically fixedly connected to the middle of the top of the base (11), and a material conveying mechanism (3) is fixedly connected to the top of the two supports (13), wherein the material conveying mechanism (3) comprises a conveying pipe (31) fixedly connected to the top of the two supports (13). Its features are: A gas supply mechanism (4) is provided at one end of the conveying pipe (31), and a heating mechanism (2) is provided at each end of the conveying pipe (31). A feed inlet is provided on one side of the conveying pipe (31), and a feed guide tube (34) is fixedly installed at the top of the conveying pipe (31) and at the opening of the feed inlet. A spiral guide strip (32) is fixedly connected to the inner wall of the conveying pipe (31). The heating mechanism (2) includes arc-shaped heaters (22) arranged symmetrically at both ends of the conveying pipe (31). The air delivery mechanism (4) includes an air compressor (41) that is fixedly installed at one end of the delivery pipeline (31).
2. The dense phase pneumatic conveying device according to claim 1, characterized in that: A discharge conduit (33) is fixedly installed at the opening of the other end of the conveying pipe (31).
3. The dense phase pneumatic conveying device according to claim 1, characterized in that: An inclined baffle (35) is fixedly connected to one end of the inner wall of the feed conduit (34), and a feed hopper (36) is fixedly connected to the upper opening of the feed conduit (34).
4. The dense phase pneumatic conveying device according to claim 1, characterized in that: An air outlet pipe (43) is fixedly installed at the air outlet of the other end of the air compressor (41), and the air outlet pipe (43) is fitted into the inner wall of the conveying pipeline (31).
5. The dense phase pneumatic conveying device according to claim 1, characterized in that: An air inlet pipe (44) is fixedly installed at the air inlet of one end of the air compressor (41), and a control panel (42) is provided at the front end of the air compressor (41).
6. The dense phase pneumatic conveying device according to claim 1, characterized in that: The base (11) has mounting holes (12) between the upper and lower side walls at the four corners.
7. The dense phase pneumatic conveying device according to claim 1, characterized in that: Each of the two arc heaters (22) is provided with a heating element (23) at one end facing each other, and each of the two arc heaters (22) is fixedly connected to a fixing frame (21) at one end away from each other. The bottom end of the fixing frame (21) is fixedly connected to a base (11).