Novel dry powder concentrator
By introducing a dispersing component and a blower into the dry air classifier, and using a vibrating screen and a rotary motor to disperse the material, the problems of material agglomeration and poor blowing effect are solved, resulting in a more efficient sorting effect.
Patent Information
- Application Number
- CN202520350080.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing dry air classifiers have poor material blowing effect, resulting in low powder separation rate and material agglomeration, which affects the separation effect.
The material is dispersed by a dispersing component in conjunction with a blower pipe. The material is dispersed by a vibrating screen and a rotary motor, and the airflow from the blower pipe is used for sorting, which increases the powder selection area and prevents the material from agglomerating.
It improves powder selection efficiency, enhances material separation effect, and increases the powder output rate of air separation.
Smart Images
Figure CN223875550U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of powder selecting, particularly to a novel dry powder selecting machine. BACKGROUND
[0002] The powder selecting machine is widely used in industrial production, especially in the scene of screening and separating powder materials. For example, in the cement production line, the powder selecting machine can be used for screening and separating powder materials in the coal mill, the raw material unloading and drying mill and the cement mill system. Directly using the air bellow to select powder belongs to the technical category of dry powder selecting air selection in the industry. Air selection is a method of separating impurities or materials by using the difference between materials and impurities in terms of suspension speed and density with the help of air flow. The blowing type air selection equipment usually works in a positive pressure state. By blowing air flow into the material in the air bellow, the light part (such as powder, dust, etc.) in the material is taken away by the air flow, while the heavy part remains in place, thereby realizing the separation of the material. At present, when air selection is performed, the air bellow is directly blown into the air bellow, the blown air flow is relatively concentrated, and the air flow cannot disperse the falling material, so the air flow effect is poor, and the air selection powder rate is low. Secondly, when the material falls, it is easy to condense and gather together without being dispersed, and the central part of the material cannot be effectively air selected. The above problems need to be further improved. SUMMARY
[0003] Therefore, it is necessary to provide a novel dry powder selecting machine aiming at the above problems.
[0004] The novel dry powder selecting machine comprises a powder selecting box, a feeding cone cylinder and a discharging cone cylinder. The powder selecting box is in a cylindrical shape. The feeding cone cylinder is installed at the top of the powder selecting box, and the discharging cone cylinder is installed at the bottom of the powder selecting box. A powder outlet pipe is further arranged at the top of the powder selecting box. The feeding cone cylinder, the powder selecting box and the discharging cone cylinder are sequentially communicated. A feeding valve is arranged at the lower end of the feeding cone cylinder. A dispersing assembly and an air bellow pipe are further arranged in the powder selecting box. The dispersing assembly is located above the air bellow pipe. A plurality of air holes are arranged on the air bellow pipe. The air bellow pipe is in communication with the air bellow equipment outside. The dispersing assembly comprises a vibrating screen, a vibrator, a rotary motor and a stirring rod. The edge of the vibrating screen is connected with the inner wall of the powder selecting box. The vibrator is installed at the bottom of the vibrating screen. The rotary motor is installed at the center of the vibrating screen, and the output end of the rotary motor is downwardly arranged and connected with the stirring rod to drive the stirring rod to rotate in the vibrating screen.
[0005] Preferably, a material distributing cone is arranged at the bottom of the feeding cone cylinder and located directly above the rotary motor.
[0006] Preferably, the two ends of the air bellow pipe are movably connected with the wall of the powder selecting box through sealing bearings, and the air bellow pipe is rotatable.
[0007] Preferably, the spiral fin is arranged on the tube body of the air blowing pipe.
[0008] Preferably, the powder selecting box is composed of stainless steel plates.
[0009] The utility model discloses the beneficial effect lies in: utilize the beating apart subassembly with the air blowing pipe cooperation, can beat apart the material that coagulates into the block in the vibration sieve after the flat laying, the forward air blowing selects the powder, increases the powder selecting area, avoids the material coagulation, and improves the powder selecting efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 It is the three -dimensional schematic diagram of novel dry -type powder selecting machine for one embodiment;
[0011] Fig. 2 It is novel dry -type powder selecting machine structure diagram DETAILED DESCRIPTION
[0012] In order to make the above purpose, features and advantages of the utility model can be more obvious and easy to understand, the specific implementation of the utility model is explained in detail below with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. But the utility model can be implemented in many other ways different from the description, and those skilled in the art can make similar improvements without violating the connotation of the utility model, therefore the utility model is not limited by the following disclosed specific embodiments.
[0013] It should be noted that when an element is referred to as being "fixed to" or "set to" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.
[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing the specific implementation and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0015] As Figs. 1-2As shown, the new dry powder concentrator, including powder box 1, feed cone 2 and discharge cone 3, the powder box 1 is cylindrical, the feed cone 2 is installed in the top of the powder box 1, the discharge cone 3 is installed in the bottom of the powder box 1, the top of the powder box 1 is also provided with a powder outlet pipe 11, the feed cone 2, the powder box 1 and the discharge cone 3 are sequentially communicated, the lower end of the feed cone 2 is provided with a feed valve 21, the powder box 1 is also provided with a scattering assembly 3 and a blast pipe 4, the scattering assembly 3 is located above the blast pipe 4, a plurality of air holes 41 are arranged on the blast pipe 4, the blast pipe 4 is communicated with the blast equipment outside, the scattering assembly 3 includes a vibrating screen 31, a vibrator 32, a rotating motor 33 and a lever 34, the side of the vibrating screen 31 is connected with the inner wall of the powder box 1, the vibrator 32 is installed at the bottom of the vibrating screen 31, the rotating motor 33 is installed at the center of the vibrating screen 31, and the output end of the rotating motor 33 is downwardly arranged and connected with the lever 34 to drive the lever 34 to rotate in the vibrating screen 31. Specifically, in this embodiment, the powder box 1 adopts a cylindrical structure and is hollow, the feed cone 2 can be used to store materials, when powder is needed to be selected, the feed valve 21 at the lower end of the feed cone 2 is opened, the materials can fall into the powder box 1 under the action of gravity, because the materials fall under the diameter limitation of the feed valve 21, the materials fall in a concentrated manner and may exist in the form of agglomerates, in order to scatter the materials, the scattering assembly 3 is arranged in the powder box 1, when the materials fall into the vibrating screen 31, the vibrator 32 is started to drive the vibrating screen 31 to vibrate, so as to scatter the agglomerated materials, the rotating motor 33 synchronously drives the lever 34 to rotate, so as to scrape the materials accumulated on the vibrating screen 31 to make the materials evenly spread on the vibrating screen 31, in the process of shaking, the materials are affected by the upward airflow blown by the blast pipe 4, part of the dust particles with small particle size can float up and overflow from the powder outlet pipe 11 at the top of the powder box 1, and the materials with large particle size which cannot float up can fall through the vibrating screen 31 and flow out of the powder box 1 through the discharge cone 3, after being ground and broken again, the materials are input into the powder box 1 to perform the powder selection operation. It can be understood that part of the materials cannot pass through the mesh of the vibrating screen 31 and will be left on the vibrating screen 31, therefore, a discharge door can be arranged at the position of the vibrating screen 31 in the powder box 1 to regularly clean the materials left on the vibrating screen 31. Specifically, the powder box 1 is composed of stainless steel plates which are spliced, so that the structure strength of the powder box 1 is high and the application cost is low.
[0016] As Fig. 2As shown, the bottom of the feeding cone 2 is provided with a distribution cone 22, which is located directly above the rotating motor 33. Specifically, the bottom of the feeding cone 2 is provided with a side opening, when the feeding valve 21 is opened, the material falls from the feeding cone 2, enters the powder selecting box 1 from the side opening of the feeding cone 2, and is automatically distributed around under the influence of the distribution cone 22 when falling under the influence of gravity, thereby avoiding the material falling straight down, gathering, and affecting the air separation efficiency. At the same time, the distribution cone 22 is located above the rotating motor 33, which can protect the rotating motor 33 from being directly impacted by the material falling down, although the rotating motor 33 can be protected by an outer cover, but the outer cover can be damaged by the impact of the material after a long time.
[0017] As shown in the drawings, Fig. 2 The both ends of the air blowing pipe 4 are movably connected to the wall of the powder selecting box 1 through sealing bearings, and the air blowing pipe 4 is rotatable. Specifically, one end of the air blowing pipe 4 extends out of the powder selecting box 1, and is connected to the air blowing device through a rotary joint, so that the air blowing pipe 4 is not rotated with the air blowing pipe of the air blowing device. The purpose of the rotation of the air blowing pipe 4 is to shake off the dust accumulated on the air blowing pipe 4, so as to avoid the accumulation and blockage of the air blowing hole 41.
[0018] As shown in the drawings, Fig. 2 The air blowing pipe 4 is provided with a spiral blade 42, which can break the material and dust accumulated on the surface of the air blowing pipe 4 when the air blowing pipe 42 is rotated, so that the material attached to the surface of the air blowing pipe 42 is more easily shaken off during the rotation of the air blowing pipe 42.
[0019] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A new type of dry powder concentrator, characterized in that: Including the powder selecting box, the feeding cone and the discharging cone, the powder selecting box is cylindrical, the feeding cone is installed on the top of the powder selecting box, the discharging cone is installed on the bottom of the powder selecting box, the top of the powder selecting box is also provided with a powder outlet pipe, the feeding cone, the powder selecting box and the discharging cone are sequentially communicated, the lower end of the feeding cone is provided with a feeding valve, the powder selecting box is also provided with a scattering assembly and an air blowing pipe, the scattering assembly is above the air blowing pipe, a plurality of air holes are arranged on the pipe body of the air blowing pipe, the air blowing pipe is communicated with the air blowing equipment outside, the scattering assembly comprises a vibrating screen, a vibrator, a rotary motor and a stirring rod, the side of the vibrating screen is connected with the inner wall of the powder selecting box, the vibrator is installed on the bottom of the vibrating screen, the rotary motor is installed at the center of the vibrating screen, the output end of the rotary motor is downwardly arranged and connected with the stirring rod to drive the stirring rod to rotate in the vibrating screen.
2. The novel dry classifier according to claim 1, characterized in that: The bottom of the feeding cone is provided with a distributing cone, and the distributing cone is directly above the rotary motor.
3. The novel dry classifier according to claim 1, characterized in that: The both ends of the air blowing pipe are movably connected with the wall of the powder selecting box through sealing bearings, and the air blowing pipe is rotatable.
4. The novel dry classifier according to claim 3, characterized in that: The pipe body of the air blowing pipe is provided with a spiral blade.
5. The novel dry classifier according to claim 1, characterized in that: The powder selecting box is composed of stainless steel plates.