Efficient powder concentrator with multi-point adjustable air inlet mode

Abstract

The utility model discloses a multi-point adjustable air inlet mode efficient powder concentrator which comprises a powder concentrator shell, two correspondingly arranged scattering grids are arranged in the powder concentrator shell, end plates are installed on the two scattering grids, a supporting plate is fixedly installed between the two end plates, a telescopic baffle plate is installed on the supporting plate, and the telescopic baffle plate is fixedly installed on the powder concentrator shell. A scattering plate mounted on the scattering grid is arranged at the corresponding position of the telescopic baffle plate, and circular welding spots are uniformly welded on the scattering plate; and an end plate hole is formed in the end plate, a stud is installed in the end plate hole, the stud is movably sleeved with a position adjusting block, and the position adjusting block is welded and fixed to the telescopic baffle plate. By optimizing the scattering plate and adjusting the structural form of the baffle plate, the scattering efficiency is improved, the sorting capacity is improved, and the service life of the scattering grid of the powder concentrator is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of air classifier technology, specifically a high-efficiency air classifier with multi-point adjustable air inlet. Background Technology

[0002] As one of the main pieces of equipment in a cement grinding system, the air classifier can promptly separate qualified fine powder that has been ground to a certain degree, thereby adjusting the particle size distribution and improving the grinding efficiency of the mill. V-type air classifiers are generally paired with roller presses to form various roller-pressed grinding systems, breaking up and classifying the material cake produced by the roller press. Depending on the process requirements, the material can also be dried.

[0003] The working principle of a V-type air classifier: Material is fed into the air classifier through the feed inlet via an elevator. Due to the buffering effect of the baffle plate, the material is evenly dispersed and enters the air classifier housing through the dispersing grid. At the same time, due to the action of the fan, the air classifier is under negative pressure. The airflow enters the air classifier through the air inlet of the air inlet housing, flows through the dispersing grid inside the air classifier housing, and is discharged from the air outlet. Due to the combined action of airflow and gravity, fine powder is discharged from the air outlet with the airflow and collected as finished product by a cyclone separator or bag filter. Coarse powder falls and is discharged through the coarse powder discharge port. The separation is completed entirely by wind power. The fineness of the separated powder and the amount of material carried by the air classifier are usually controlled by adjusting the air volume of the fan.

[0004] Since the width, spacing, and length of the baffles are closely related to the airflow and particle size of the V-type air classifier, generally, the longer the baffle, the greater the required airflow or the smaller the particle size. Traditional V-type air classifiers often use a baffle composed of both dispersed and extended grids in the sorting area. The disadvantages are as follows: First, this type of baffle is prone to misalignment, as the extended grid baffle and the dispersed grid baffle are not on the same line, resulting in uneven upper and lower airflow and affecting the sorting effect. Second, the lower part of the baffle is easily worn under the combined action of air and material, causing the total length of the baffle to decrease after a period of use, affecting the particle size or hourly output. Summary of the Invention

[0005] The purpose of this invention is to provide a high-efficiency air classifier with multi-point adjustable air intake mode to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency air classifier with multi-point adjustable air inlet, comprising an air classifier housing, wherein two correspondingly arranged dispersing grids are provided inside the air classifier housing, and each of the two dispersing grids is equipped with an end plate, a support plate is fixedly installed between the two end plates, a retractable baffle is installed on the support plate, and a dispersing plate installed on the dispersing grid is provided at the corresponding position of the retractable baffle, and circular weld points are uniformly welded on the dispersing plate;

[0007] The end plate has an end plate hole, and a stud is installed in the end plate hole. A position adjustment block is movably sleeved on the stud, and the position adjustment block is welded and fixed to the retractable baffle.

[0008] Preferably, the top of the classifier housing is provided with a feed inlet, and the two sides of the classifier housing are respectively provided with an air outlet and an air inlet, and the bottom of the classifier housing is provided with a discharge outlet.

[0009] Preferably, the support plate is welded with support angle steel at its center and both ends, and the support angle steel at both ends is welded and fixed to the end plate.

[0010] Preferably, both ends of the retractable baffle are provided with movable slots, and the retractable baffle is movably sleeved on the support plate through the movable slots.

[0011] Preferably, the top and bottom of the position adjusting block are respectively provided with upper double nuts and lower double nuts threaded onto the stud.

[0012] Preferably, a sealing door is movably installed at the end plate hole of the end plate.

[0013] Preferably, the weld height of the circular weld point is 3-5mm.

[0014] Preferably, a ventilator is provided between the air outlet and the air inlet, and the ventilator is equipped with an air regulating blade device.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The V-type classifier's dispersing plate in this design is based on the original wear-resistant flat plate, with wear-resistant cylindrical weld points welded on top. The weld points are evenly distributed in rows, with a weld height of 3-5mm. The advantages are as follows: First, it increases the service life of the dispersing plate; second, because the weld points are higher than the wear-resistant surface, the material cake is subjected to greater force at the same flow rate, improving the dispersing efficiency; finally, the evenly distributed raised weld points increase the friction between the material cake and the wear-resistant flat plate, prolonging the dispersing time of the material cake through the classifier, increasing the proportion of fine powder generated in the classifier, and increasing the output of the classifier.

[0017] 2. This utility model improves the dispersing efficiency, enhances the sorting capability, and extends the service life of the dispersing grid of the air classifier by optimizing the dispersing plate and adjusting the baffle plate structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the air classifier housing of this utility model;

[0020] Figure 3This is a schematic diagram of the AA part of the present invention;

[0021] Figure 4 This is a front view structural diagram of the B-direction disintegration plate of this utility model;

[0022] Figure 5 This is a side view of the B-direction disintegration plate structure of this utility model;

[0023] Figure 6 This is a partial structural diagram of the present invention along the C direction;

[0024] Figure 7 This is a schematic diagram of a partial structure in direction D of this utility model;

[0025] Figure 8 This is a partial structural diagram of the present invention in direction E.

[0026] In the diagram: 1. Feed inlet; 2. Air outlet; 3. Air inlet; 4. Discharge outlet; 5. Dispersing grid; 6. Telescopic baffle; 7. Dispersing plate; 8. Air regulating blade device; 9. End plate; 10. Support plate; 11. Support angle steel; 12. Circular weld point; 13. Stud; 14. Movable groove; 15. Position adjusting block; 16. Upper double nut; 17. Lower double nut; 18. Sealing door. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-8 This utility model provides a technical solution: a high-efficiency air classifier with multi-point adjustable air inlet, including an air classifier housing, two corresponding dispersing grids 5 are arranged inside the air classifier housing, and end plates 9 are installed on both dispersing grids 5. A support plate 10 is fixedly installed between the two end plates 9, and a retractable baffle plate 6 is installed on the support plate 10. A dispersing plate 7 is installed on the dispersing grids 5 at the corresponding position of the retractable baffle plate 6, and circular weld points 12 are uniformly welded on the dispersing plate 7. The weld height of the circular weld points 12 is 3-5mm. The wear-resistant cylindrical weld points are built on the basis of the original wear-resistant plate, which firstly improves the service life of the dispersing plate; secondly, because the weld points are higher than the wear-resistant plane, the material cake is subjected to greater force under the same flow rate, which improves the dispersing efficiency; finally, the uniformly distributed raised weld points increase the friction between the material cake and the wear-resistant plate, prolong the dispersing time of the material cake through the air classifier, increase the proportion of fine powder generated in the air classifier, and increase the output of the air classifier.

[0029] An end plate hole is provided on the end plate 9, and a stud 13 is installed in the end plate hole. A position adjustment block 15 is movably sleeved on the stud 13, and the position adjustment block 15 is welded and fixed to the retractable baffle 6.

[0030] See Figure 1 In this utility model, the top of the air classifier housing is provided with a feed inlet 1, and the two sides of the air classifier housing are respectively provided with an air outlet 2 and an air inlet 3, and the bottom of the air classifier housing is provided with a discharge outlet 4.

[0031] See Figure 2 and Figure 6 In this utility model, support angle steel 11 is welded to the center and both ends of the support plate 10, and the support angle steel 11 at both ends is welded and fixed to the end plate 9 to strengthen the support plate 10. The support plate 10 plays the role of supporting the retractable baffle plate.

[0032] See Figure 6 In this utility model, both ends of the retractable baffle 6 are provided with movable grooves 14, and the retractable baffle 6 is movably sleeved on the support plate 10 through the movable grooves 14. The movable grooves 14 are used to simulate the retractable baffle 6 sliding along the track on the support plate 10.

[0033] See Figure 7 and Figure 8 In this utility model, the top and bottom of the position adjustment block 15 are respectively provided with an upper double nut 16 and a lower double nut 17 threaded onto the stud 13. The position of the position adjustment block 15 can be determined by the upper double nut 16 and the lower double nut 17, and it can be fixed by tightening the upper double nut 16 and the lower double nut 17.

[0034] See Figure 8 In this utility model, a sealing door 18 is movably installed at the end plate hole of the end plate 9. The sealing door 18 is opened when adjusting the baffle plate and closed during normal operation.

[0035] In this utility model, a ventilator is provided between the air outlet 2 and the air inlet 3, and an air adjusting blade device 8 is installed on the ventilator. The air adjusting blade device 8 refers to adjusting the performance parameters of the fan, such as air volume and air pressure, by changing the angle of the fan blades. Adjustment method: The angle of the fan blades can be adjusted in a variety of ways, such as manual adjustment, hydraulic pitch system adjustment, electric pitch system adjustment, etc.

[0036] This utility model design eliminates the extended grid in the V-type classifier baffle plate, transforming the original dispersed grid baffle plate into a telescopic type, thus solving the problems of traditional V-type classifiers. The movable slot structure ensures the straightness of the telescopic baffle plate relative to the original plate, resulting in uniform airflow. When wear decreases at the lower part of the baffle plate, the particle size or time-stability of the classifier can be stabilized by extending the baffle plate. Furthermore, when grinding process parameters such as airflow or particle size change, this V-type classifier design can be appropriately adjusted by controlling the length of the baffle plate.

[0037] The contents not described in detail in this specification are prior art known to those skilled in the art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high efficiency separator with multi-point adjustable air inlet, characterized in that: The air classifier includes a housing, which contains two corresponding dispersing grids (5), and each of the two dispersing grids (5) is equipped with an end plate (9). A support plate (10) is fixedly installed between the two end plates (9). A retractable baffle plate (6) is installed on the support plate (10). A dispersing plate (7) is installed on the dispersing grid (5) at a corresponding position on the retractable baffle plate (6), and circular weld points (12) are uniformly welded on the dispersing plate (7). The end plate (9) has an end plate hole and a stud (13) is installed in the end plate hole. A position adjustment block (15) is movably sleeved on the stud (13) and welded and fixed to the retractable baffle (6).

2. A multi-point adjustable air inlet method high efficiency classifier according to claim 1, characterized in that: The top of the air classifier housing is provided with a feed inlet (1), and the sides of the air classifier housing are respectively provided with an air outlet (2) and an air inlet (3), and the bottom of the air classifier housing is provided with a discharge outlet (4).

3. A multi-point adjustable air inlet method high efficiency classifier according to claim 1, characterized in that: The support plate (10) is welded with support angle steel (11) at its center and at both ends, and the support angle steel (11) at both ends is welded and fixed to the end plate (9).

4. A multi-point adjustable air inlet method high efficiency classifier according to claim 1, characterized in that: Both ends of the retractable baffle (6) are provided with movable slots (14), and the retractable baffle (6) is movably sleeved on the support plate (10) through the movable slots (14).

5. A high-efficiency air classifier with multi-point adjustable air inlet as described in claim 1, characterized in that: The position adjustment block (15) is provided with an upper double nut (16) and a lower double nut (17) threaded onto the stud (13) at its top and bottom, respectively.

6. A multi-point adjustable air inlet method high efficiency classifier according to claim 1, characterized in that: A sealing door (18) is movably installed at the end plate hole of the end plate (9).

7. A multi-point adjustable air inlet method high efficiency classifier according to claim 1, characterized in that: The weld height of the circular weld point (12) is 3-5mm.

8. A multi-point adjustable air inlet way high efficiency classifier according to claim 2, characterized in that: A ventilator is provided between the air outlet (2) and the air inlet (3), and an air regulating blade device (8) is installed on the ventilator.

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