Combined powder concentrator capable of being accurately adjusted

Abstract

The utility model relates to the technical field of powder selecting machines, and discloses a precisely adjustable combined powder selecting machine which comprises a screening barrel, connecting pipes are fixedly connected to the two sides of the screening barrel respectively, a winnowing barrel is arranged at one end of each connecting pipe, a circulating assembly is arranged in the screening barrel, and a discharging pipe is arranged at the bottom of the screening barrel. The circulating assembly comprises a circulating shell, the circulating shell is arranged in the screening barrel, an air inlet is formed in the circulating shell, a fan is arranged in the circulating shell, and a circulating pipe is arranged at one end of the circulating shell. According to the screening device, materials are put into the screening device through the feeding opening in the top of the screening barrel, then screened through the internal draught fan and adjusted through the internal motor, large materials fall into the circulating shell and then sorted again through the draught fan, and small materials inside circulate into the screening barrel through the circulating pipe to be screened again; the problem that screen leakage is prone to occurring in one-time screening is solved, and the screening accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of powder concentrator, especially to the combined powder concentrator with precision adjustment. BACKGROUND

[0002] In today's industrial production field, especially in many industries such as building materials and chemical industry, the powder concentrator plays a crucial role. As an advanced powder processing equipment, the combined powder concentrator with precision adjustment aims to meet the growing demand for high-quality and fine production. With the continuous progress of technology, the requirements for particle size distribution and purity of powder materials in various industries are becoming increasingly stringent. For example, in cement production, the particle size distribution of cement products directly affects its strength, hydration rate and other key performance indicators; when processing non-metallic ore powder, products of different particle sizes are suitable for different high-end manufacturing fields, from electronic materials to coating filling, all of which require high precision of powder particle size. This has prompted the continuous innovation of the powder concentrator to achieve more efficient and accurate material screening to meet the complex and changing market demand.

[0003] Traditional powder concentrators have their specific modes in terms of mechanical structure and technical principles. The common centrifugal powder concentrator mainly relies on the centrifugal force generated by the high-speed rotating rotor. After the material is fed from the center, it is thrown outward under the action of centrifugal force. The coarse particles, due to their large inertia, first hit the inner wall of the powder concentrator and fall along the wall to be collected as coarse powder. Fine particles, on the other hand, move upward with the airflow and enter the subsequent collection device through the air outlet. The cyclone powder concentrator uses the centrifugal force field formed by the high-speed rotation of airflow in the cylinder. The material enters from the tangent, and the airflow rotates with the material. Similarly, according to the size of the particles, coarse particles settle at the bottom due to the large centrifugal force, and fine particles are discharged from the center pipe with the airflow. These traditional powder concentrators have met the basic production needs in a certain historical period, but their adjustment precision is limited, and they rely on fixed mechanical structure parameters, making it difficult to adjust flexibly and accurately according to the material characteristics and production conditions.

[0004] However, there is a significant problem with traditional powder concentrators, which is that a single screening can easily result in a missed screening, leading to poor screening accuracy. Due to the relatively fixed structure design of traditional powder concentrators, whether centrifugal or cyclone, only a single centrifugal force or airflow rotation force is used for classification during the material screening process. In actual operation, the nature of the material is complex and variable, such as the moisture content, particle shape, and adhesion degree of the material, which can affect the screening effect. Once the material has slightly greater adhesion or irregular particle shape, some larger material that should have been separated as coarse powder may not receive enough separation force and rise with the fine particles, escaping the initial screening and mixing into the finished material, greatly affecting the quality of the product and failing to meet the current demand for high-quality powder materials. Therefore, the combined powder concentrator with precision adjustment is proposed to solve the above problems. The utility model discloses a content

[0005] In order to make up above insufficient, the utility model provides the combined powder concentrator of accurate regulation, aims at improving the problem of not comprehensive screening in prior art one screening.

[0006] In order to realize above -mentioned purpose, the utility model has adopted following technical scheme:

[0007] Combined powder concentrator of accurate regulation, including screening bucket, both sides of screening bucket are fixedly connected with connecting pipe, one end of connecting pipe is provided with winnowing bucket, and the inside of screening bucket is provided with circulating assembly, and the bottom of screening bucket is provided with discharge pipe.

[0008] The circulating assembly includes circulating shell, the circulating shell is arranged in the inside of the screening bucket, the circulating shell is internally provided with the air inlet, the circulating shell is internally provided with the fan, one end of the circulating shell is provided with the circulating pipe, the other end of the circulating pipe is arranged in the top of the screening bucket, the circulating shell is internally provided with the filter plate, the circulating shell is internally provided with the dismounting assembly, and the bottom of the circulating shell is fixedly connected with the support leg of rectangular array.

[0009] As further description of the above technical scheme:

[0010] The dismounting assembly includes fixed shell, and the outer wall of the fixed shell is fixedly connected in the inside of the circulating shell.

[0011] As further description of the above technical scheme:

[0012] The fixed shell is internally fixedly connected with the fixed column, and the outer wall of the fixed column is slidably connected with the moving block.

[0013] As further description of the above technical scheme:

[0014] The moving block is internally provided with the limiting groove, and the outer wall of the moving block is fixedly connected with the pressing plate.

[0015] As further description of the above technical scheme:

[0016] One side of the moving block is fixedly connected with the clamping plate, and the outer wall of the clamping plate is slidably connected in the inside of the filter plate.

[0017] As further description of the above technical scheme:

[0018] The outer wall of the fixed column is sleeved with the spring, one end of the spring is fixedly connected in the inner wall of the fixed shell, and the other end of the spring is fixedly connected in the outer wall of the moving block.

[0019] As further description of the above technical scheme:

[0020] The fixed shell outer wall is rotationally connected with a rotating rod, one side of the rotating rod is fixedly connected with a sliding column, and the sliding column outer wall is slidably connected in the limiting groove.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1、the utility model discloses, material is put into the inside of device through the top feed inlet of screening bucket, is screened through the internal fan later, and is adjusted through the internal motor, and the larger material falls to the inside of circulating shell later, and the fan is started, and the smaller material in the inside is circulated to the inside of screening bucket through circulating pipe and is screened again, solve the problem of easy leakage in the first screening, improve the accuracy of screening.

[0023] 2、the utility model discloses, the card board realizes its mobile function through the push pressboard, when push pressboard, through the drive of pressboard to moving block, limiting groove and cooperate with the sliding column and spring, realize the sliding of card board in the filter plate, thereby conveniently disassembling the filter plate, convenient for its maintenance replacement, solved the problem that the present disassembling needs multiple tools to use and cannot conveniently disassemble, improved the convenience of filter plate maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the three-dimensional schematic view of the combined powder selecting machine of accurate adjustment that the utility model proposes;

[0025] Figure 2 It is the structure schematic view of the circulating shell inside of the combined powder selecting machine of accurate adjustment that the utility model proposes;

[0026] Figure 3 It is the structure schematic view of the fixed shell inside of the combined powder selecting machine of accurate adjustment that the utility model proposes.

[0027] LEGEND:

[0028] 1, screening bucket;2, winnowing bucket;3, connecting pipe;4, circulating pipe;5, circulating shell;6, support leg;7, discharge pipe;8, air inlet;9, filter plate;10, fixed shell;11, fan;12, moving block;13, pressboard;14, fixed column;15, card board;16, limiting groove;17, sliding column;18, rotating rod;19, spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0030] With reference to Figure 1 and Figure 2 An embodiment provided by the present application is a combined powder selecting machine capable of accurate adjustment, comprising a screening barrel 1, wherein the core component of the screening barrel 1 is made of high-strength stainless steel material, the barrel wall has moderate thickness, can ensure the stability of the overall structure, resist long-term impact of materials, and will not affect the portability and installation flexibility of the equipment due to excessive weight, the two sides of the screening barrel 1 are fixedly connected with connecting pipes 3, the connecting pipes 3 are made of high-quality engineering plastic, have good corrosion resistance and certain flexibility, can effectively buffer the vibration in the material conveying process, one end of the connecting pipe 3 is provided with a winnowing barrel 2, the barrel body of the winnowing barrel 2 is designed as a unique conical structure, the inner wall is finely polished to reduce material adhesion, and the wide bottom is beneficial to the settlement and collection of coarse materials, the screening barrel 1 is provided with a circulating assembly inside, and the screening barrel 1 is provided with a discharge pipe 7 at the bottom.

[0031] The circulating assembly comprises a circulating shell 5, the circulating shell 5 is arranged inside the screening barrel 1, the circulating shell 5 is provided with an air inlet 8 inside, the edge of the air inlet 8 is treated to be round to prevent airflow turbulence, the circulating shell 5 is provided with a fan 11 inside, one end of the circulating shell 5 is provided with a circulating pipe 4, the circulating pipe 4 is made of flexible and wear-resistant rubber material, can be bent and adjusted at will, and can smoothly guide the circulating materials back to the top of the screening barrel 1, the other end of the circulating pipe 4 is arranged at the top of the screening barrel 1, the circulating shell 5 is slidably connected with a filter plate 9 inside, the circulating shell 5 is provided with a dismounting assembly inside, the bottom of the circulating shell 5 is fixedly connected with a rectangular array of support legs 6, the support legs 6 are made of high-strength alloy steel, and the bottom is further provided with a rubber shock pad, which can stably support the entire equipment, absorb the vibration generated during equipment operation, and ensure stable and efficient operation of the powder selecting machine.

[0032] Specifically, in the material processing process, the winnowing link is crucial. When operating, the material is orderly placed from the top inlet of the screening bucket 1, and the accurate screening process is started. At this time, the operator can flexibly adjust various parameters of the fan 11, including wind speed, air volume and air pressure, according to the characteristics of the material, such as particle size distribution, humidity, density, etc., to ensure that the airflow blown by the fan 11 can properly act on the material, realizing preliminary accurate screening. Those materials with smaller particle size and lighter weight that meet the preliminary screening standard will smoothly enter the different winnowing buckets 2 inside through the connecting pipe 3 for further fine selection; while the large and heavy materials will fall downward due to their own gravity. At the same time, the fan 11 is quickly started, and the strong wind blown by it blows the falling materials, so that the relatively light materials are carried along and circulate back through the circulating pipe 4, and are re-injected into the screening bucket 1 for re-wind selection, effectively avoiding incomplete screening and greatly improving the accuracy and quality of material screening.

[0033] Referring to Figure 1 - Figure 3 The disassembling and assembling assembly comprises a fixed shell 10, which is used as a bearing matrix of the whole disassembling and assembling assembly and is made of high-strength engineering plastic. This material not only has excellent insulation performance, effectively avoiding the influence of static adsorption of dust and impurities on the operation of internal precision components, but also has good mechanical strength, which is sufficient to cope with various stress impacts in the operation of the equipment. The outer wall of the fixed shell 10 is fixedly connected inside the circulating shell 5. A fixed column 14 is fixedly connected inside the fixed shell 10. The fixed column 14 is made of high-quality carbon steel and is chrome-plated on the surface, which not only enhances the wear resistance but also makes the appearance smooth and bright, facilitating smooth cooperation with other components. A moving block 12 is slidingly connected to the outer wall of the fixed column 14. A limiting groove 16 is formed in the moving block 12. A pressing plate 13 is fixedly connected to the outer wall of the moving block 12. A clamping plate 15 is fixedly connected to one side of the moving block 12. The clamping plate 15 is made of stainless steel sheet and is stamped into shape. The outer shape of the clamping plate 15 perfectly fits the inner clamping groove of the filter plate 9 and is slidingly connected to the inner wall of the filter plate 9. The clamping plate 15 can stably clamp the filter plate 9 and easily release the filter plate 9 when needed. A spring 19 is sleeved on the outer wall of the fixed column 14. One end of the spring 19 is fixedly connected to the inner wall of the fixed shell 10, and the other end of the spring 19 is fixedly connected to the outer wall of the moving block 12. A rotating rod 18 is rotatably connected to the outer wall of the fixed shell 10. The rotating rod 18 is made of high-strength aluminum alloy, which is light and not prone to rust. A sliding column 17 is fixedly connected to one side of the rotating rod 18 and slidingly connected to the inner wall of the limiting groove 16.

[0034] Specifically, in the whole material circulating screening fine process, the filter plate 9 plays an indispensable key protection role. When the fan 11 is running at full capacity, the high-speed moving material particles are easy to splash everywhere, and if they directly hit the fan 11, they will scratch the fan 11 blades and wear the internal precision parts, seriously affecting the performance and service life of the fan 11. The existence of the filter plate 9 is like a solid shield, precisely intercepting these materials that damage the fan 11, ensuring that the fan 11 is always in good operating condition. When the device is in a non-working period and needs to be cleaned and maintained, the filter plate 9 is conveniently disassembled. The operator only needs to gently push the pressing plate 13, and the pressing plate 13 is displaced under stress, driving the moving block 12 connected thereto to smoothly slide along the outer wall of the fixed column 14. In this process, the spring 19 is gradually compressed, and the slide column 17 is flexibly and synchronously slid in the limiting groove 16. When the spring 19 is compressed to a certain extent, the pressing plate 13 is released, and the spring 19 pushes the slide column 17 to move to the right rapidly and accurately until it is engaged at the rightmost side of the limiting groove 16. At this time, the clamping plate 15 will be smoothly removed from the inside of the filter plate 9, and the operator can easily remove the filter plate 9 for thorough cleaning. After cleaning is completed, the filter plate 9 is placed back in its original position, and the clamping plate 15 is moved to the inside of the spring 19 by pressing the pressing plate 13 again, thereby stably fixing the filter plate 9 and preparing for the next round of high-intensity screening operation.

[0035] Working principle: when the material is air separated, the material is put into the material inlet at the top of the screening barrel 1, and the fan 11 is adjusted according to the situation to accurately screen the material. The smaller material passes through the connecting pipe 3 into the different air separation barrels 2, and the large material falls downward. At the same time, the fan 11 is started to blow the material, and the lighter material is circulated through the circulating pipe 4 and reloaded into the screening barrel 1 for air separation to prevent incomplete screening.

[0036] In addition, the filter plate 9 protects the fan 11 during circulating screening to prevent damage to the fan 11 by the material. When the device is not in use, the pressing plate 13 is pushed to move the moving block 12 along the outer wall of the fixed column 14 and compress the spring 19 to make the slide column 17 slide in the limiting groove 16. Then, the spring 19 rebounds to make the slide column 17 move to the rightmost side of the limiting groove 16 to be engaged, so that the clamping plate 15 slides out of the filter plate 9, making it easy to be removed for cleaning and maintenance. Then, the clamping plate 15 is moved to the inside of the spring 19 by pressing it again to keep it fixed.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A precisely adjustable combined air classifier, including a screening tank (1), characterized in that: The screening barrel (1) is fixedly connected to both sides by connecting pipes (3), and one end of the connecting pipe (3) is provided with an air classifier (2). The screening barrel (1) is provided with a circulation component inside, and the screening barrel (1) is provided with a discharge pipe (7) at the bottom. The circulation assembly includes a circulation shell (5), which is disposed inside the screening barrel (1). An air inlet (8) is provided inside the circulation shell (5). A fan (11) is provided inside the circulation shell (5). A circulation pipe (4) is provided at one end of the circulation shell (5). The other end of the circulation pipe (4) is provided at the top of the screening barrel (1). A filter plate (9) is slidably connected inside the circulation shell (5). A disassembly assembly is provided inside the circulation shell (5). A rectangular array of support legs (6) is fixedly connected to the bottom of the circulation shell (5).

2. The precisely adjustable combined air classifier according to claim 1, characterized in that: The assembly / disassembly assembly includes a fixed housing (10), the outer wall of which is fixedly connected to the inside of the recirculating housing (5).

3. The precisely adjustable combined air classifier according to claim 2, characterized in that: A fixed column (14) is fixedly connected inside the fixed outer shell (10), and a movable block (12) is slidably connected to the outer wall of the fixed column (14).

4. The precisely adjustable combined air classifier according to claim 3, characterized in that: The movable block (12) has a limiting groove (16) inside, and a pressing plate (13) is fixedly connected to the outer wall of the movable block (12).

5. The precisely adjustable combined air classifier according to claim 4, characterized in that: A card plate (15) is fixedly connected to one side of the movable block (12), and the outer wall of the card plate (15) is slidably connected to the inside of the filter plate (9).

6. The precisely adjustable combined air classifier according to claim 5, characterized in that: A spring (19) is fitted on the outer wall of the fixed column (14). One end of the spring (19) is fixedly connected to the inner wall of the fixed outer shell (10), and the other end of the spring (19) is fixedly connected to the outer wall of the moving block (12).

7. The precisely adjustable combined air classifier according to claim 6, characterized in that: The outer wall of the fixed housing (10) is rotatably connected to a rotating rod (18), and a sliding column (17) is fixedly connected to one side of the rotating rod (18). The outer wall of the sliding column (17) is slidably connected inside the limiting groove (16).

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