Switchable cement grinding device

Abstract

The utility model discloses a switchable cement grinding device, and relates to the technical field of cement grinding. The switchable cement grinding device comprises a roller press, mounting plates are fixedly connected to the front side and the rear side of the position of a discharging opening of the roller press, a first conveying belt is fixedly connected to the positions, located at the lower end of the discharging opening of the roller press, of the inner sides of the mounting plates, and an adjusting conveying belt is arranged at the lower end of the right side of the first conveying belt; the adjusting conveying belt is rotationally connected with the interior of the mounting plate, an adjusting motor is fixedly connected to the front end of the rotating position of the adjusting conveying belt and the mounting plate, a second conveying belt is arranged at the lower end of the right side of the adjusting conveying belt, and a ball mill is arranged on the right side of the second conveying belt; and the right side of the second conveying belt communicates with a feeding port of the ball mill, a third conveying belt is arranged at the lower end of the adjusting conveying belt, a V-shaped airflow classifier is arranged on the front side of the third conveying belt, and a control cabinet is installed at the front end of the roller press.

Description

Technical Field

[0001] This utility model relates to the field of cement grinding technology, specifically to a switchable cement grinding device. Background Technology

[0002] Cement grinding units are key equipment in cement production, primarily used to grind cement clinker and admixtures (such as slag and fly ash) to a specified fineness to produce cement products of different strength grades. Their core functions include crushing, grinding, grading, and conveying, and they typically consist of mills (such as ball mills, vertical mills, and roller presses), classifiers, dust removal systems, and transmission devices. Cement produced using a semi-finished open-circuit grinding system with a roller press exhibits a wider particle shape and distribution, higher water demand, coarser cement fineness at the mill inlet and outlet, lower cement temperature, higher operating time, lower air volume, and lower power consumption. Cement produced using a combined open-circuit grinding system has a more uniform particle shape and distribution, lower water demand, finer cement fineness at the mill inlet and outlet, higher cement temperature, lower operating time, higher air volume, and higher power consumption. Both systems have their advantages and disadvantages; therefore, a switchable cement grinding unit is designed to address these issues. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a switchable cement grinding device, which solves the problem that both the open-circuit semi-final grinding system and the open-circuit combined grinding system of cement mills have their own advantages and disadvantages, resulting in relatively low efficiency.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a switchable cement grinding device, comprising: a roller press; mounting plates are fixedly connected to the front and rear sides of the discharge port of the roller press; a first conveyor belt is fixedly connected to the inner side of the mounting plates and located at the lower end of the discharge port of the roller press; an adjusting conveyor belt is provided at the lower right side of the first conveyor belt; the adjusting conveyor belt is rotatably connected to the inside of the mounting plates; an adjusting motor is fixedly connected to the front end of the adjusting conveyor belt at the rotatable position of the mounting plates; a second conveyor belt is provided at the lower right side of the adjusting conveyor belt; a ball mill is provided to the right side of the second conveyor belt; the right side of the second conveyor belt is connected to the feed port of the ball mill; a third conveyor belt is provided at the lower end of the adjusting conveyor belt; a V-type air classifier is provided at the front side of the third conveyor belt; the coarse material discharge port at the lower side of the V-type air classifier is connected to the ball mill via a conveyor belt; a control cabinet is installed at the front end of the roller press; and the roller press, the first conveyor belt, the adjusting conveyor belt, the adjusting motor, the second conveyor belt, the ball mill, the third conveyor belt, and the V-type air classifier are all electrically connected to the control cabinet.

[0008] Preferably, limiting plates are fixedly connected to the lower left and right sides of the adjusting conveyor belt, and the lower ends of the limiting plates extend to the upper surface of the third conveyor belt.

[0009] Preferably, the right side of the first conveyor belt extends to the upper third of the adjusting conveyor belt, and the left side of the second conveyor belt extends to the lower third of the adjusting conveyor belt.

[0010] Preferably, the adjustment of the conveyor belt rotation position is located at one-third of the way on the right side.

[0011] Preferably, when the adjustable conveyor belt is rotated to the upper end, the left and right sides form an angle of 5° to 10°.

[0012] Preferably, the upper end and right side of the mounting plate are covered with baffles.

[0013] (III) Beneficial Effects

[0014] This invention provides a switchable cement grinding device, which has at least the following advantages compared with the prior art:

[0015] This switchable cement grinding unit adopts different production methods, aims for low energy consumption, adapts to different markets, leverages the high pre-grinding efficiency of large roller presses, and combines the advantages of open-circuit mills that facilitate product particle distribution to achieve the goal of increasing production and reducing consumption. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a rear side view of the present invention;

[0018] Figure 3 This is a diagram of the internal structure of this utility model;

[0019] Figure 4 This utility model Figure 3 The right-side view.

[0020] In the diagram: 1. Roller press; 2. Mounting plate; 3. First conveyor belt; 4. Adjusting conveyor belt; 5. Adjusting motor; 6. Second conveyor belt; 7. Ball mill; 8. Third conveyor belt; 9. V-type air classifier; 10. Control cabinet; 21. Limit plate; 22. Baffle. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a switchable cement grinding device, comprising: a roller press 1, with mounting plates 2 fixedly connected to the front and rear sides of the discharge port of the roller press 1; a first conveyor belt 3 fixedly connected to the inner side of the mounting plate 2 and located at the lower end of the discharge port of the roller press 1; an adjusting conveyor belt 4 disposed at the lower right side of the first conveyor belt 3; the adjusting conveyor belt 4 being rotatably connected to the interior of the mounting plate 2; an adjusting motor 5 fixedly connected to the front end of the adjusting conveyor belt 4 at the rotatable position of the mounting plate 2; and a second conveyor belt 6 disposed at the lower right side of the adjusting conveyor belt 4. A ball mill 7 is installed on the right side of the second conveyor belt 6. The right side of the second conveyor belt 6 is connected to the feed inlet of the ball mill 7. A third conveyor belt 8 is installed at the lower end of the adjusting conveyor belt 4. A V-type air classifier 9 is installed at the front side of the third conveyor belt 8. The coarse material outlet at the lower side of the V-type air classifier 9 is connected to the ball mill 7 via a conveyor belt. A control cabinet 10 is installed at the front end of the roller press 1. The roller press 1, the first conveyor belt 3, the adjusting conveyor belt 4, the adjusting motor 5, the second conveyor belt 6, the ball mill 7, the third conveyor belt 8, and the V-type air classifier 9 are all electrically connected to the control cabinet 10.

[0023] During operation, cement clinker and admixtures enter the roller press 1 for high-pressure extrusion and crushing to form a pulverized cake. The crushed material is discharged from the outlet and falls onto the first conveyor belt 3. The adjusting conveyor belt 4 is driven by the adjusting motor 5, which can adjust the tilt angle to determine the material flow direction. When the material enters the mill together, the adjusting conveyor belt 4 remains horizontal. The material on the first conveyor belt 3 falls onto the adjusting conveyor belt 4, and then falls onto the second conveyor belt 6 through the right end, directly entering the interior of the ball mill 7. The semi-final entry path is as follows: the adjusting conveyor belt 4 and the second conveyor belt 6 stop working, and the adjusting conveyor belt 4 rotates downwards by 90 degrees. °, the cake material falling on the first conveyor belt 3 will fall directly onto the third conveyor belt 8, and then be conveyed into the V-type air classifier 9 for separation. The air force inside the V-type air classifier 9 is adjusted. Smaller particles are discharged through the output end of the front of the V-type air classifier 9, collected by the dust collector and directly stored in the warehouse. Some larger particles that do not meet the usage requirements will be discharged downwards and directly enter the ball mill 7 for grinding. The material discharged from the ball mill 7 will be screened again, and unqualified particles will be returned to the roller press 1 for re-grinding.

[0024] like Figure 1-4 As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, the lower left and right sides of the adjustment conveyor belt 4 are fixedly connected with limiting plates 21, and the lower end of the limiting plates 21 extends to the upper surface of the third conveyor belt 8.

[0025] Analysis of the above structure shows that the limiting plate 21 can restrict the position of the falling particles, preventing them from causing environmental pollution and waste.

[0026] like Figure 1-4 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the right side of the first conveyor belt 3 extends to the upper third of the adjusting conveyor belt 4, and the left side of the second conveyor belt 6 extends to the lower third of the adjusting conveyor belt 4.

[0027] Analysis of the above structure shows that the right side of the first conveyor belt 3 extends to the upper third of the adjusting conveyor belt 4, and the left side of the second conveyor belt 6 extends to the lower third of the adjusting conveyor belt 4. This ensures that the material on the upper conveyor belt can fall onto the upper surface of the lower conveyor belt without any space between them, thus preventing the material from falling out.

[0028] like Figure 1-4 As shown, this utility model embodiment provides an implementation method in which the rotation position of the adjustable conveyor belt 4 is located at one-third of the right side.

[0029] Analysis of the above structure shows that when the conveyor belt 4 is adjusted to rotate downwards to 90 degrees, it can act as a guide plate to prevent materials from falling onto the second conveyor belt 6.

[0030] like Figure 1-4 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, when the adjustable conveyor belt 4 is rotated to the upper end, the left and right sides form an oblique angle of 5° to 10°.

[0031] Analysis of the above structure shows that adjusting the left and right sides of the conveyor belt 4 to form an angle of 5° to 10° when it rotates to the top reduces the probability of goods slipping off.

[0032] like Figure 1-2 As shown, this utility model embodiment provides an implementation method in which the upper end and right side of the mounting plate 2 are covered with baffles 22.

[0033] Analysis of the above structure shows that the baffle 22 can prevent external water and wind from participating in the transmission process, causing water content and powder particles to fly away.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] 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 which is defined by the appended claims and their equivalents.

Claims

1. A switchable cement grinding device, characterized in that, include: A roller press (1) has mounting plates (2) fixedly connected to the front and rear sides of the discharge port of the roller press (1). A first conveyor belt (3) is fixedly connected to the inner side of the mounting plate (2) and located at the lower end of the discharge port of the roller press (1). An adjusting conveyor belt (4) is provided at the lower right side of the first conveyor belt (3). The adjusting conveyor belt (4) is rotatably connected to the inside of the mounting plate (2). An adjusting motor (5) is fixedly connected to the front end of the rotating position of the adjusting conveyor belt (4) and the mounting plate (2). A second conveyor belt (6) is provided at the lower right side of the adjusting conveyor belt (4). A ball mill (7) is provided to the right side of the second conveyor belt (6). The right side of the conveyor belt (6) is connected to the feed inlet of the ball mill (7). The lower end of the adjusting conveyor belt (4) is provided with a third conveyor belt (8). A V-type air classifier (9) is provided on the front side of the third conveyor belt (8). The coarse material outlet on the lower side of the V-type air classifier (9) is connected to the ball mill (7) through a conveyor belt. The front end of the roller press (1) is equipped with a control cabinet (10). The roller press (1), the first conveyor belt (3), the adjusting conveyor belt (4), the adjusting motor (5), the second conveyor belt (6), the ball mill (7), the third conveyor belt (8), and the V-type air classifier (9) are all electrically connected to the control cabinet (10).

2. The switchable cement grinding device according to claim 1, characterized in that: The lower left and right sides of the adjustment conveyor belt (4) are fixedly connected to the limiting plate (21), and the lower end of the limiting plate (21) extends to the upper surface of the third conveyor belt (8).

3. The switchable cement grinding device according to claim 1, characterized in that: The right side of the first conveyor belt (3) extends to the upper third of the adjustment conveyor belt (4), and the left side of the second conveyor belt (6) extends to the lower third of the adjustment conveyor belt (4).

4. The switchable cement grinding device according to claim 1, characterized in that: The rotation position of the adjusted conveyor belt (4) is located at one-third of the right side.

5. A switchable cement grinding device according to claim 1, characterized in that: When the adjustment conveyor belt (4) is rotated to the upper end, the left and right sides form an angle of 5° to 10°.

6. A switchable cement grinding device according to claim 1, characterized in that: The upper end and right side of the mounting plate (2) are both covered with baffles (22).

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