Multi-combination split type composite electromagnetic vibrating screen suitable for different working conditions

Abstract

The utility model relates to the technical field of vibrating screens, and provides a multi-combination split type composite electromagnetic vibrating screen suitable for different working conditions, which comprises an electromagnetic vibrating screen section and a high-frequency dewatering screen section, and the high-frequency dewatering screen section is communicated with the electromagnetic vibrating screen section; the high-frequency dewatering screen is characterized by further comprising a flexible connecting section, the flexible connecting section is arranged between the outlet end of the electromagnetic vibrating screen section and the inlet end of the high-frequency dewatering screen section, and the high-frequency dewatering screen section is communicated with the electromagnetic vibrating screen section through the flexible connecting section. By means of the technical scheme, the problems that in the related technology, a three-plastid composite intelligent high-frequency dewatering screen on the market cannot meet part of on-site process conditions, and it is necessary to research and develop the form of the three-plastid composite intelligent high-frequency dewatering screen are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, and in particular to a multi-combination split-type composite electromagnetic vibrating screen suitable for different working conditions. Background Art

[0002] In the coal preparation industry, for the process of dehydration and desliming of coarse coal slime, an arc screen or an arc screen + a high-frequency screen is usually used. However, in actual working conditions, the arc screen has many disadvantages, such as severe wear, water and coarseness leakage, and low efficiency. Most coal preparation plants have begun to seek new equipment to replace the dehydration process of the arc screen. The three-body intelligent high-frequency dehydration and desliming fine screen (hereinafter referred to as the electromagnetic vibrating screen) uses an electromagnetic vibrator as an excitation source to make the screen produce high-frequency vibrations, destroy the surface tension of the liquid, and allow the medium and fine particles below the aperture to pass through the screen surface to achieve the effect of dehydration and classification. The electromagnetic vibrating screen has a high opening rate, significantly improved dehydration efficiency, and a simple structure. The main parts have a long life and do not require maintenance or replacement except for wearing parts. It has gradually become the preferred equipment for the process of dehydration and desliming of coarse coal slime.

[0003] Since many coal preparation plants have different process flows, diverse coal qualities and different particle size requirements for coarse coal slime products, the same type of electromagnetic vibrating screen will have different effects when used in different coal preparation plants, and may even fail to meet normal production. Therefore, it is necessary to analyze the on-site process and make highly targeted equipment to adapt to the site.

[0004] The existing mainstream electromagnetic screen products are mainly three-body intelligent high-frequency desludging fine screen and three-body composite intelligent high-frequency dewatering screen. The application scenarios of the two types of equipment are different for different on-site processes and needs. The three-body composite intelligent high-frequency dewatering screen is often used in applications with strict moisture requirements after dehydration, and can meet the requirements of belt or scraper transportation, or meet the requirements of being a product after processing. The electromagnetic vibration screen section and the high-frequency dewatering section of this equipment are connected end to end, and the width of the two screen sections is basically the same. It is usually suitable for working conditions with a sieve hole of more than 120 mesh and a medium or above coal slime water concentration; for working conditions with low coal slime water concentration (usually less than 60g / L) and a sieve hole size of less than 120 mesh, the dehydration efficiency of the electromagnetic vibration screen section is greatly reduced because the sieve hole is too small. The amount of water entering the high-frequency dehydration section increases sharply, and the dehydration efficiency of this section also drops significantly, which easily causes water leakage; when the coal slime water concentration is high (usually higher than 140g / L), the coal slime water is basically dehydrated in the electromagnetic vibration screen section, and a large amount of thick coal slime enters the high-frequency dehydration section. Since the forward speed of the coal slime in this section is much smaller than the forward speed of the electromagnetic vibration screen section, it is easy to cause the amount of coal slime leaving the high-frequency dehydration section to be less than the amount of coal slime entering this section in the same time, so that the coal slime is gradually accumulated, and eventually the high-frequency dehydration section is overloaded, vibrating abnormally, and the motor overheats or even burns out.

[0005] Therefore, it is necessary to use three-mass composite intelligent high-frequency dewatering screens of different specifications for various on-site processes. When the water volume is large, the width of the electromagnetic vibration screen section needs to be widened to speed up the dewatering efficiency; when the amount of coal slime is large, the width of the high-frequency dewatering section needs to be increased to increase its processing capacity. Based on the above analysis, the three-mass composite intelligent high-frequency dewatering screens currently on the market cannot meet some on-site process conditions, and it is necessary to develop its form. Utility Model Content

[0006] The utility model proposes a multi-combination split composite electromagnetic vibration screen suitable for different working conditions, which solves the problem that the three-mass composite intelligent high-frequency dewatering screen on the market in the related technology cannot meet some on-site process conditions and it is necessary to develop its form.

[0007] The technical solution of the utility model is as follows: a multi-combination split composite electromagnetic vibrating screen suitable for different working conditions, comprising:

[0008] Electromagnetic vibrating screen segment,

[0009] A high-frequency dehydration screen segment, wherein the high-frequency dehydration screen segment is connected to the electromagnetic vibration screen segment;

[0010] The key point is that it also includes a flexible connecting section, which is arranged between the outlet end of the electromagnetic vibration screen section and the inlet end of the high-frequency dehydration screen section, and the high-frequency dehydration screen section is connected with the electromagnetic vibration screen section by means of the flexible connecting section.

[0011] The flexible connection section and the electromagnetic vibration screen section, as well as the flexible connection section and the high-frequency dehydration screen section are all detachably connected.

[0012] It also includes a locking bolt, by means of which the flexible connection section is detachably connected with the electromagnetic vibration screen section and the high-frequency dehydration screen section.

[0013] Threaded holes are provided at both ends of the flexible connection section, and the locking bolts are threadedly connected to the threaded holes.

[0014] The flexible connecting section comprises:

[0015] End connecting plates, one of which is arranged on the electromagnetic vibration screen segment, and the other end connecting plate is arranged on the high-frequency dehydration screen segment;

[0016] transverse connecting plates, all of which are arranged between two of the end connecting plates;

[0017] The longitudinal connecting plate is provided between the end connecting plate and the adjacent transverse connecting plate and between two adjacent transverse connecting plates.

[0018] The end connecting plate is arranged in parallel with the transverse connecting plate, and the angle between the longitudinal connecting plate and the transverse connecting plate is an acute angle.

[0019] All of the longitudinal connecting plates are arranged in parallel.

[0020] It also includes a chute, which is arranged in the electromagnetic vibration screen section and is used to allow the screen material of the electromagnetic vibration screen section to enter the screen of the high-frequency dehydration screen section.

[0021] The electromagnetic vibration screen segment comprises:

[0022] Screen frame,

[0023] A screen, the screen is arranged in the screen frame and is used to separate the screen frame into an upper cavity and a lower cavity;

[0024] A striking rod, which is arranged in the lower cavity of the screen frame and is used to strike the screen;

[0025] A transmission rod, wherein the transmission rod is arranged in the screen frame, and the striking rod is arranged on the transmission rod;

[0026] An electromagnetic vibrator is arranged on the screen frame and is used to drive the transmission rod to rotate.

[0027] It also includes a support plate, which is arranged in the screen frame. The transmission rod is arranged on both sides of the support plate. One end of the transmission rod is rotatably arranged on the support plate, and the other end of the transmission rod is connected to the electromagnetic exciter located outside the screen frame.

[0028] The working principle and beneficial effects of the utility model are as follows: a flexible connection section is arranged between the outlet end of the electromagnetic vibration screen section and the inlet end of the high-frequency dehydration screen section, and the high-frequency dehydration screen section is connected with the electromagnetic vibration screen section by means of the flexible connection section. The flexible connection section can be extended and retracted in the length and width direction within a certain range, and the length and width of the flexible connection section can be adjusted according to the width difference and the front-to-back distance between the electromagnetic vibration screen section and the high-frequency dehydration screen section to adapt to the connection between the electromagnetic vibration screen section and the high-frequency dehydration screen section of different widths, so that the electromagnetic vibration screen section is connected with the high-frequency dehydration screen section, which can better meet the on-site process conditions and make the connection between the electromagnetic vibration screen section and the high-frequency dehydration screen section simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0030] Figure 1This is a schematic structural diagram of the first direction of the utility model.

[0031] Figure 2 This is a schematic diagram of the structure of the second direction of the utility model.

[0032] Figure 3 It is a schematic structural diagram of the third direction of the utility model.

[0033] Figure 4 It is a structural schematic diagram of the flexible connecting section in one direction of the utility model.

[0034] Figure 5 It is a structural schematic diagram of the flexible connecting section in another direction of the utility model.

[0035] Figure 6 It is a schematic diagram of the positional relationship between the screen and the striking rod in the utility model.

[0036] Figure 7 It is a schematic diagram of the internal structure of the screen frame in the utility model.

[0037] Figure 8 It is a schematic diagram of the connection structure between the electromagnetic vibrator and the screen frame in the utility model.

[0038] In the figure: 1, electromagnetic vibration screen section, 1-1, screen frame, 1-2, screen, 1-3, striking rod, 1-4, transmission rod, 1-5, electromagnetic exciter, 2, high-frequency dehydration screen section, 3, flexible connecting section, 3-1, end connecting plate, 3-2, transverse connecting plate, 3-3, longitudinal connecting plate, 4, threaded hole, 5, chute, 6, support plate. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0040] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0041] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0042] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] Example, see Figure 1 , Figure 2 and Figure 3 , which is an embodiment of the utility model, proposes a multi-combination split composite electromagnetic vibration screen suitable for different working conditions, including an electromagnetic vibration screen segment 1, a high-frequency dehydration screen segment 2, and the high-frequency dehydration screen segment 2 is connected to the electromagnetic vibration screen segment 1; it also includes a flexible connecting segment 3, the flexible connecting segment 3 is arranged between the outlet end of the electromagnetic vibration screen segment 1 and the inlet end of the high-frequency dehydration screen segment 2, and the high-frequency dehydration screen segment 2 is connected to the electromagnetic vibration screen segment 1 by means of the flexible connecting segment 3.

[0044] Furthermore, the flexible connection section 3 and the electromagnetic vibration screen section 1, and the flexible connection section 3 and the high-frequency dehydration screen section 2 are all detachably connected, so that when the flexible connection section 3 cannot meet the use requirements, maintenance and replacement are convenient.

[0045] Furthermore, it also includes a locking bolt, and the flexible connection section 3 is detachably connected with the electromagnetic vibration screen section 1 and the high-frequency dehydration screen section 2 by means of the locking bolt. The flexible connection section 3 and the electromagnetic vibration screen section 1, and the flexible connection section 3 and the high-frequency dehydration screen section 2 are both locked by the locking bolt, so the connection is firm and reliable, and the disassembly and assembly are convenient and fast, saving time and effort.

[0046] Furthermore, threaded holes 4 are provided at both ends of the flexible connection section 3, and the locking bolts are threadedly connected to the threaded holes 4. Figure 4 As shown, threaded holes 4 are opened in advance at both ends of the flexible connection section 3, and there is no need to drill holes on site, which makes the operation simpler and more convenient.

[0047] Furthermore, the flexible connecting section 3 includes an end connecting plate 3-1, a transverse connecting plate 3-2, and a longitudinal connecting plate 3-3. One end connecting plate 3-1 is arranged on the electromagnetic vibration screen section 1, and the other end connecting plate 3-1 is arranged on the high-frequency dehydration screen section 2; all the transverse connecting plates 3-2 are arranged between two end connecting plates 3-1; and longitudinal connecting plates 3-3 are arranged between the end connecting plate 3-1 and the adjacent transverse connecting plate 3-2, and between two adjacent transverse connecting plates 3-2. Figure 4 and Figure 5 As shown, the end connecting plate 3-1, the transverse connecting plate 3-2 and the longitudinal connecting plate 3-3 are connected to form a bending structure, so that the flexible connecting section 3 has a larger expansion space and can better meet the use requirements.

[0048] The end connecting plate 3-1 is arranged parallel to the transverse connecting plate 3-2, and the angle between the longitudinal connecting plate 3-3 and the transverse connecting plate 3-2 is an acute angle. Figure 4 and Figure 5 As shown, the overall shape is regular and easy to process. All longitudinal connecting plates 3-3 are arranged in parallel. The overall shape is more neat and beautiful. The end connecting plates 3-1, the transverse connecting plates 3-2 and the longitudinal connecting plates 3-3 are integrally formed, and the connection is more firm and reliable.

[0049] Furthermore, it also includes a chute 5, which is arranged in the electromagnetic vibration screen section 1 and is used to allow the screened material of the electromagnetic vibration screen section 1 to enter the screen of the high-frequency dehydration screen section 2. Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the material on the screen of the electromagnetic vibrating screen 1 enters the screen above the high-frequency dehydration screen section 2 through the chute 5. During the whole process, the material and the coal slime water have no contact with the connecting section 3, and the screening effect is better.

[0050] Furthermore, the electromagnetic vibrating screen section 1 includes a screen frame 1-1, a screen mesh 1-2, a striking rod 1-3, a transmission rod 1-4, and an electromagnetic exciter 1-5. The screen mesh 1-2 is arranged in the screen frame 1-1 to divide the screen frame 1-1 into an upper cavity and a lower cavity; the striking rod 1-3 is arranged in the lower cavity of the screen frame 1-1 to strike the screen mesh 1-2; the transmission rod 1-4 is arranged in the screen frame 1-1, and the striking rod 1-3 is arranged on the transmission rod 1-4; the electromagnetic exciter 1-5 is arranged on the screen frame 1-1 to drive the transmission rod 1-4 to rotate. Figure 6 , Figure 7 and Figure 8As shown, all electromagnetic exciters 1-5 located on the same side of the screen frame 1-1 are arranged along the length direction of the screen 1-2, and the electromagnetic exciters 1-5 are connected to the striking rods 1-3 one by one. The axis of the striking rods 1-3 is set along the width direction of the screen 1-2. The electromagnetic exciters 1-5 drive the transmission rods 1-4 to swing, and the transmission rods 1-4 drive the striking rods 1-3 to swing synchronously, thereby striking the screen 1-2. The structure is simple and the connection is convenient.

[0051] Furthermore, it also includes a support plate 6, which is arranged in the screen frame 1-1, and a transmission rod 1-4 is arranged on both sides of the support plate 6, one end of the transmission rod 1-4 is rotatably arranged on the support plate 6, and the other end of the transmission rod 1-4 is connected to the electromagnetic exciter 1-5 located outside the screen frame 1-1. Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, the support plate 6 supports and limits the transmission rods 1-4 on both sides, which can reduce the length of each transmission rod 1-4 and the striking rod 1-3, so that the striking effect of the striking rod 1-3 on the screen 1-2 is better.

[0052] In this embodiment, the high-frequency dehydration screen segment 2 is composed of an outer frame, a high-frequency screen, and a rubber spring. During assembly, the inlet end must be aligned with the position of the screen chute 5 of the electromagnetic vibration screen segment 1. The flexible connection segment 3 is made of flexible materials such as rubber or polyurethane boards, and can be stretched and retracted in length and width within a certain range. The length and width of the flexible connection segment 3 can be adjusted according to the width difference and front-to-back distance between the electromagnetic vibration screen segment 1 and the high-frequency dehydration screen segment 2 to adapt to the connection between the electromagnetic vibration screen segment 1 and the high-frequency dehydration screen segment 2 of different widths, thereby connecting the electromagnetic vibration screen segment 1 with the high-frequency dehydration screen segment 2, which can better meet the on-site process conditions and make the connection between the electromagnetic vibration screen segment 1 and the high-frequency dehydration screen segment 2 simpler and more convenient.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A multi-combination split composite electromagnetic vibrating screen suitable for different working conditions, comprising: Electromagnetic vibrating screen section (1), A high-frequency dehydration screen segment (2), the high-frequency dehydration screen segment (2) being connected to the electromagnetic vibration screen segment (1); Features: It also comprises a flexible connecting section (3), wherein the flexible connecting section (3) is arranged between the outlet end of the electromagnetic vibration screen section (1) and the inlet end of the high-frequency dehydration screen section (2), and the high-frequency dehydration screen section (2) is connected to the electromagnetic vibration screen section (1) by means of the flexible connecting section (3).

2. According to claim 1, a multi-combination split composite electromagnetic vibrating screen suitable for different working conditions is characterized by: The flexible connection section (3) and the electromagnetic vibration screen section (1), as well as the flexible connection section (3) and the high-frequency dehydration screen section (2) are both detachably connected.

3. According to claim 2, a multi-combination split composite electromagnetic vibrating screen suitable for different working conditions is characterized in that: It also comprises a locking bolt, by means of which the flexible connection section (3) is detachably connected to the electromagnetic vibration screen section (1) and the high-frequency dehydration screen section (2).

4. The multi-combination split composite electromagnetic vibrating screen suitable for different working conditions according to claim 3, characterized in that: Threaded holes (4) are provided at both ends of the flexible connection section (3), and the locking bolts are threadedly connected to the threaded holes (4).

5. The multi-combination split composite electromagnetic vibrating screen suitable for different working conditions according to claim 1, characterized in that: The flexible connecting section (3) comprises: An end connecting plate (3-1), one of the end connecting plates (3-1) being arranged on the electromagnetic vibration screen segment (1), and the other end connecting plate (3-1) being arranged on the high-frequency dehydration screen segment (2); transverse connecting plates (3-2), all of the transverse connecting plates (3-2) are arranged between the two end connecting plates (3-1); The longitudinal connecting plate (3-3) is provided between the end connecting plate (3-1) and the adjacent transverse connecting plate (3-2), and between two adjacent transverse connecting plates (3-2).

6. The multi-combination split composite electromagnetic vibrating screen suitable for different working conditions according to claim 5, characterized in that: The end connecting plate (3-1) is arranged in parallel with the transverse connecting plate (3-2), and the included angle between the longitudinal connecting plate (3-3) and the transverse connecting plate (3-2) is an acute angle.

7. The multi-combination split composite electromagnetic vibrating screen suitable for different working conditions according to claim 5, characterized in that: All of the longitudinal connecting plates (3-3) are arranged in parallel.

8. The multi-combination split composite electromagnetic vibrating screen suitable for different working conditions according to claim 1, characterized in that: It also comprises a chute (5), wherein the chute (5) is arranged in the electromagnetic vibration screen section (1) and is used to allow the screened material of the electromagnetic vibration screen section (1) to enter the screen of the high-frequency dehydration screen section (2).

9. The multi-combination split composite electromagnetic vibrating screen suitable for different working conditions according to claim 1, characterized in that: The electromagnetic vibrating screen segment (1) comprises: Screen frame (1-1), A screen (1-2), the screen (1-2) being arranged in the screen frame (1-1) and used for dividing the screen frame (1-1) into an upper cavity and a lower cavity; a striking rod (1-3), the striking rod (1-3) being arranged in the lower cavity of the screen frame (1-1) and being used for striking the screen (1-2); A transmission rod (1-4), wherein the transmission rod (1-4) is arranged in the screen frame (1-1), and the striking rod (1-3) is arranged on the transmission rod (1-4); An electromagnetic vibrator (1-5), wherein the electromagnetic vibrator (1-5) is arranged on the screen frame (1-1) and is used to drive the transmission rod (1-4) to rotate.

10. The multi-combination split composite electromagnetic vibrating screen suitable for different working conditions according to claim 9, characterized in that: It also comprises a support plate (6), the support plate (6) being arranged in the screen frame (1-1), the transmission rod (1-4) being arranged on both sides of the support plate (6), one end of the transmission rod (1-4) being rotatably arranged on the support plate (6), and the other end of the transmission rod (1-4) being connected to the electromagnetic exciter (1-5) located outside the screen frame (1-1).

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