Modularized multi-laminated sieve bend

Abstract

The invention relates to the technical field of sieve bends, in particular to a modular multi-laminated sieve bend which is characterized in that a bottom supporting part comprises a base, a rear support fixed to the rear end of the base and supporting arms connected to the two sides of the front end of the base; the top supporting part comprises a frame-shaped frame connected to the top end of the rear support, and the vibration motor is installed on the frame-shaped frame. Each of the multiple arc-shaped screen boxes arranged in a stacked mode comprises an arc-shaped box body with the two sides of the front end fixed to the inner side of the support, a material distribution shell connected to the top end of the arc-shaped box body and fixed to an inner cavity of the frame-shaped frame, a feeding pipe head arranged on the top face of the material distribution shell, a supporting plate arranged at the front end of the inner cavity of the arc-shaped box body and a cylindrical shell connected to the middle of the supporting plate in a sleeving mode. Discharging ports are formed in the bottom of the front wall of the arc-shaped box body and located on the two sides of the cylindrical shell. An arc-shaped inserting groove in the middle of one side wall of the arc-shaped box body is used for inserting the spliced sieve plate. A blocking plate fixed on the outer side wall of the arc-shaped box body is used for limiting the spliced sieve plate; the problems that the screening efficiency of an arc-shaped screen is low, and a screen assembly is inconvenient to disassemble and assemble rapidly are well solved.

Description

Technical Field

[0001] The invention relates to the technical field of curved screens, in particular to a modular multi-layer curved screen. Background Art

[0002] The curved screen is an economical and practical solid-liquid separation, which is mainly used in coal preparation plants and ore preparation plants to pre-dehydrate, desludging, and de-mediumizing materials, and graded coal slime recovery. It can also be used in conjunction with a hydrocyclone to effectively grade, dehydrate, deslunge, and de-mediumize fine-grained materials.

[0003] At present, the commonly used curved screens generally include support frames, curved screen boxes, screen components, feed structures, discharge structures, and vibration motors. Affected by materials, processing equipment, processing technology, transportation, etc., the size of the curved screen cannot be increased blindly, so the screening efficiency of a single curved screen is low. In order to meet the processing capacity requirements of the coal preparation plant, multiple curved screens will be selected on site to process materials at the same time. The more curved screens there are, the larger the space will be, and the more supporting chutes and pipelines will be required, which will increase infrastructure investment and labor input.

[0004] In addition, the screen assembly of the traditional curved screen is mostly fixed, and when the screen is worn, it can only be replaced with a new screen. And the screen assembly is not easy to disassemble and assemble quickly, which brings inconvenience to the application of the curved screen. Summary of the invention

[0005] The object of the present invention is to provide a modular multi-layer arc screen, which is used to solve the problems in the prior art that the arc screen has low screening efficiency and the screen assembly is not convenient for rapid disassembly and assembly.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a modular multi-layer arc screen, wherein the bottom support portion includes a base, a rear bracket whose bottom is fixed to both sides of the rear end of the base, and a support arm whose bottom end is connected to both sides of the front end of the base; the top support portion includes a frame frame whose two sides of the rear are respectively connected to the top of the rear bracket, and the vibration motor is installed on the rear top surface of the frame frame; the arc screen box is arranged in a stacked manner, and the arc screen box respectively includes an arc box body whose two sides of the front end are respectively fixed to the inner side of the support arm, and a frame frame connected to the top of the arc box body and fixed to the frame frame. A cloth shell of the inner cavity, a feed pipe head arranged in the middle of the top surface of the cloth shell, a support plate arranged at the front end of the inner cavity of the arc-shaped box body, and a cylindrical shell with the top end vertically sleeved on the middle of the support plate. The bottom of the front wall of the arc-shaped box body is respectively provided with discharge ports at positions on both sides of the cylindrical shell, and an arc-shaped slot is provided in the middle of one side wall of the arc-shaped box body; a plurality of the spliced ​​sieve plates spliced ​​into a screen structure are respectively slidably inserted into the arc-shaped slots in the horizontal direction, and the screen surface of the spliced ​​sieve plates is not lower than the top surface of the support plate; the blocking plate is fixed to the outer side wall of the arc-shaped box body and corresponds to the position of the arc-shaped slot.

[0007] Preferably, guide plates are fixed on both sides of the middle part of the top surface of the support plate, the rear ends of the two guide plates are respectively connected to the two side walls of the inner cavity of the arc-shaped box body, and the front ends of the guide plates are respectively connected to the front wall of the inner cavity of the arc-shaped box body and to the positions corresponding to the two sides of the top of the cylindrical shell.

[0008] Preferably, the cylindrical shell is a triangular prism shell structure with a cross section of an isosceles triangle, and the vertex of the cylindrical shell faces rearward.

[0009] Preferably, the spliced ​​sieve plate includes a sieve plate unit and side strips whose bottom ends are connected to both sides of the top surface of the sieve plate unit. The front and rear sides of the sieve plate unit are respectively provided with a slot and a strip, and the slot and the strip are slidably engaged and matched along the horizontal direction.

[0010] Preferably, the outer side wall of the arc-shaped box body is provided with a plurality of fixing screw holes at positions outside the arc-shaped slot, and the edge of the blocking plate is provided with fixing bolts that match the threaded sleeves of the fixing screw holes.

[0011] Preferably, a baffle plate 1 with its front end tilted downward is fixed near the top of the rear wall of the inner cavity of the cloth shell, a baffle plate 2 with its rear end tilted downward is fixed to the front wall of the inner cavity of the cloth shell at a position corresponding to the baffle plate 1, and a material equalizing plate is vertically fixed on the top surface of the front end of the inner cavity of the bottom of the cloth shell.

[0012] Preferably, a support frame for supporting the spliced ​​screen plate is fixed between the two side walls of the inner cavity of the arc-shaped box.

[0013] Preferably, elastic seats are respectively provided at the two corners at the front end of the top surface of the base, the bottom end of the support arm is hinged to the top of the elastic seat, the rear bracket includes a vertical tube whose bottom end is fixed to the two corners at the rear end of the top surface of the base, a column slidably mounted in the vertical tube, and a positioning bolt threadedly mounted on the top of the side wall of the vertical tube, the side wall of the column is evenly provided with a number of positioning holes that match the inner ends of the positioning bolts, the top of the column is fixed with an elastic seat, and ear plates hinged to the corresponding elastic seats are provided on both sides of the bottom of the frame.

[0014] Preferably, the elastic seat includes a bottom plate, an ear seat arranged above the bottom plate, and an elastic member connected between the top surface of the bottom plate and the bottom surface of the ear seat.

[0015] Preferably, a cross bar is fixedly connected between the vertical tubes, and a cross beam is fixedly connected between the top ends of the inner cavity side walls of the arc-shaped box body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The modular multi-layered curved screen of the present invention is provided with a plurality of curved screen boxes in a stacked manner so as to provide a one-time processing amount, which not only improves the screening efficiency but also greatly saves the space occupied by the equipment.

[0018] 2. The screen structure in the modular multi-layered arc screen involved in the present invention is composed of multiple spliced ​​screen plates, and each spliced ​​screen plate can be installed in a drawer manner, which not only simplifies the installation steps of the screen structure, but also facilitates quick disassembly and assembly and is easy to operate; and when part of the screen structure is damaged, only the corresponding spliced ​​screen plates need to be replaced in a targeted manner, avoiding the replacement of the entire screen structure, thereby reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the bottom support part of the present invention;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the elastic seat of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the top support part of the present invention;

[0023] Figure 5 It is a schematic diagram of the first three-dimensional structure of the arc screen box of the present invention;

[0024] Figure 6 It is a second three-dimensional structural schematic diagram of the arc screen box of the present invention;

[0025] Figure 7 It is a schematic cross-sectional structure diagram of the arc screen box of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the spliced ​​screen plate of the present invention.

[0027] In the figure: 1- bottom support part; 1.1- base; 1.2- rear support; 1.2.1- vertical tube; 1.2.2- column; 1.2.2.1- positioning hole; 1.2.3- positioning bolt; 1.2.4- cross bar; 1.3- support arm; 1.4- elastic seat; 1.4.1- bottom plate; 1.4.2- ear seat; 1.4.3- elastic member;

[0028] 2-top support; 2.1-frame; 2.2-ear plate;

[0029] 3-Vibration motor;

[0030] 4-arc screen box; 4.1-arc box body; 4.1.1-arc slot; 4.1.2-fixing screw hole; 4.1.3-discharge port; 4.2-distribution shell; 4.2.1-baffle 1; 4.2.2-baffle 2; 4.2.3-equalizing plate; 4.3-feeding pipe head; 4.4-support plate; 4.5-column shell; 4.6-guide plate; 4.7-support frame; 4.8-crossbeam;

[0031] 5-Spliced ​​sieve plate; 5.1-Sieve plate unit; 5.1.1-Card slot; 5.1.2-Card strip; 5.2-Side strip;

[0032] 6-Blocking plate; 6.1-Fixing bolts. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-8 The present invention provides a technical solution, a modular multi-layer arc screen, the bottom support part 1 includes a base 1.1, a rear bracket 1.2 whose bottom is fixed to both sides of the rear end of the base 1.1, and a support arm 1.3 whose bottom end is connected to both sides of the front end of the base 1.1; wherein, elastic seats 1.4 are respectively provided at the two corners at the front end of the top surface of the base 1.1, and the bottom end of the support arm 1.3 is hinged to the top of the elastic seat 1.4, and the rear bracket 1.2 includes a vertical cylinder 1.2.1 whose bottom end is fixed to the two corners of the rear end of the top surface of the base 1.1, a column 1.2.2 slidably mounted in the vertical cylinder 1.2.1, and a positioning bolt 1.2.3 threadedly mounted on the top of the side wall of the vertical cylinder 1.2.1, and the side wall of the column 1.2.2 is evenly provided with a plurality of positioning holes 1.2.2.1 that are matched with the inner end of the positioning bolt 1.2.3 along the vertical direction, and an elastic seat 1.4 is fixed on the top of the column 1.2.2. The elastic seat 1.4 includes a bottom plate 1.4.1, an ear seat 1.4.2 disposed above the bottom plate 1.4.1, and an elastic member 1.4.3 connected between the top surface of the bottom plate 1.4.1 and the bottom surface of the ear seat 1.4.2. That is, the angle of the arc screen box 4 can be adjusted by adjusting the telescopic adjustment of the vertical cylinder 1.2.1 and the column 1.2.2, so as to achieve the effect of adjusting the angle of the screen surface according to the screened material. The elastic member 1.4.3 is a rubber spring, and the elastic seat 1.4 makes the screening assembly suitable for the vibration frequency of the vibration motor 3.

[0035] The top support part 2 comprises a frame 2.1 connected to the top of the rear bracket 1.2 at both sides of the rear part, wherein ear plates 2.2 hinged to the corresponding elastic seats 1.4 are arranged at both sides of the bottom of the frame 2.1.

[0036] The vibration motor 3 is mounted on the rear top surface of the frame 2.1.

[0037] A plurality of arc-shaped screen boxes 4 are arranged in a stacked manner, and the arc-shaped screen boxes 4 respectively include an arc-shaped box body 4.1 whose front ends are fixed to the inner sides of the support arms 1.3, a material distribution shell 4.2 connected to the top of the arc-shaped box body 4.1 and fixed to the inner cavity of the frame 2.1, a feed pipe head 4.3 arranged in the middle of the top surface of the material distribution shell body 4.2, a support plate 4.4 arranged at the front end of the inner cavity of the arc-shaped box body 4.1, and a columnar shell 4.5 whose top end is vertically sleeved on the middle of the support plate 4.4. The bottom of the front wall of 4.1 is provided with discharge ports 4.1.3 at the positions on both sides of the cylindrical shell 4.5, and an arc-shaped slot 4.1.1 is provided in the middle of one side wall of the arc-shaped box body 4.1; wherein, guide plates 4.6 are fixed on both sides of the middle of the top surface of the support plate 4.4, and the rear ends of the two guide plates 4.6 are respectively connected to the two side walls of the inner cavity of the arc-shaped box body 4.1, and the front ends of the guide plates 4.6 are respectively connected to the front wall of the inner cavity of the arc-shaped box body 4.1 and the positions corresponding to the two sides of the top of the cylindrical shell 4.5. The cylindrical shell 4.5 is a triangular prism shell structure with an isosceles triangle cross section, and the vertex of the cylindrical shell 4.5 faces backward. The bottom end of the cylindrical shell 4.5 matching the upper arc-shaped box body 4.1 extends to the top of the lower cylindrical shell 1.5.

[0038] The multiple spliced ​​sieve plates 5 spliced ​​into the sieve structure are respectively inserted into the arc-shaped slot 4.1.1 by sliding in the horizontal direction, and the screen surface of the spliced ​​sieve plate 5 is not lower than the top surface of the support plate 4.4; the blocking plate 6 is fixed to the outer wall of the arc-shaped box body 4.1 and corresponds to the position of the arc-shaped slot 4.1.1. Among them, the spliced ​​sieve plate 5 includes a sieve plate unit 5.1 and a side strip 5.2 whose bottom end is connected to both sides of the top surface of the sieve plate unit 5.1. The front and rear sides of the sieve plate unit 5.1 are respectively provided with a slot 5.1.1 and a strip 5.1.2, and the slot 5.1.1 and the strip 5.1.2 are slidably engaged and matched in the horizontal direction. A support frame 4.7 for supporting the spliced ​​sieve plate 5 is fixed between the two side walls of the inner cavity of the arc-shaped box body 4.1. The outer wall of the arc-shaped box body 4.1 is provided with a plurality of fixing screw holes 4.1.2 at the position outside the arc-shaped slot 4.1.1, and the edge of the blocking plate 6 is provided with fixing bolts 6.1 that match the threaded sleeves of the fixing screw holes. That is, when assembling the spliced ​​sieve plate 5, the spliced ​​sieve plate 5 is first inserted into the arc-shaped slot 4.1.1 in sequence, and the inserted spliced ​​sieve plates 5 are all supported on the support frame 4.7, and the height of both sides of the spliced ​​sieve plate 5 is the same as the height of the arc-shaped slot 4.1.1. After the spliced ​​sieve plate 5 is installed, the side strip on one side thereof is attached to the inner wall of the corresponding side of the arc-shaped box body 4.1, and the inner side of the blocking plate 6 is provided with a protrusion that matches the arc-shaped slot 4.1.1, thereby ensuring the firm limit of the spliced ​​sieve plate 5.

[0039] In order to evenly distribute the slurry to be screened onto the screen surface, a baffle 1 4.2.1 with a front end tilted downward is fixed near the top of the rear wall of the inner cavity of the material distribution shell 4.2, a baffle 2 4.2.2 with a rear end tilted downward is fixed to the front wall of the inner cavity of the material distribution shell 4.2 corresponding to the position of the baffle 1 4.2.1, and a material leveling plate 4.2.3 is vertically fixed to the top surface of the front end of the inner cavity at the bottom of the material distribution shell 4.2. That is, the baffle 1 4.2.1 and the baffle 2 4.2.2 constitute an overflow extrusion powder structure, and the material leveling plate 4.2.3 is used to prevent splashing caused by excessive flow rate of materials at the feeding end of the screen surface.

[0040] In summary, the multiple outlets of the slurry distributor are connected to the corresponding feed pipe heads 4.3 using pipes. The slurry passes through the cloth shell 4.2 and enters the corresponding screen surface, and the vibration motor 3 drives the screening mechanism to perform vibration screening operations. The on-screen material on the screen surface flows toward the support plate 4.4, and is discharged downward in sequence by the cylindrical shell 4.5. The bottom end of the lowest cylindrical shell 4.5 is connected to a discharge pipe to discharge the on-screen material. Among them, when the on-screen material generated in the upper arc screen box 4 is discharged, it is discharged into the cylindrical shell 4.5 of the lower arc screen box 4 through the corresponding cylindrical shell 4.5. By analogy, all the on-screen materials generated in the arc screen boxes 4 are finally discharged from the cylindrical shell 4.5 at the bottom position.

[0041] Due to the screening effect of the spliced ​​screen plate 5 forming a screen structure, part of the slurry is screened to the bottom of the inner cavity of the arc box 4.1, and this part of the material is the undersize material. The undersize material flows forward along the bottom surface of the inner cavity of the arc box 4.1, and is finally discharged from the discharge port 4.1.3. The front end of the arc box 4.1 is fixedly connected to a collecting trough body to guide and discharge the undersize material discharged from the discharge port 4.1.3 of each layer of the screen box.

[0042] When damage occurs somewhere in the screen structure, the corresponding blocking plate 6 can be removed by removing the fixing bolts 6.1, and then the damaged spliced ​​screen plate 5 can be easily pulled out from the arc-shaped slot 4.1.1, and a new spliced ​​screen plate 5 can be inserted into the arc-shaped slot 4.1.1, and the blocking plate 6 can be fixed to the original position using the fixing bolts 6.1 again, and the screen structure can be repaired.

[0043] In order to improve the rigidity and strength of the rear support 1.2 and the arc-shaped screen box 4 as a whole, a crossbar 1.2.4 is fixedly connected between the vertical cylinders 1.2.1, and a crossbeam 4.8 is fixedly connected between the top ends of the inner cavity side walls of the arc-shaped box body 4.1.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular multi-layer curved screen, comprising a vibrating motor (3), characterized in that: Also includes: A bottom support portion (1), the bottom support portion (1) comprising a base (1.1), a rear bracket (1.2) whose bottom is fixed to both sides of the rear end of the base (1.1), and a support arm (1.3) whose bottom end is connected to both sides of the front end of the base (1.1); A top support portion (2), the top support portion (2) comprising a frame-shaped frame (2.1) with two rear sides respectively connected to the top of the rear support (1.2), and the vibration motor (3) is mounted on the rear top surface of the frame-shaped frame (2.1); An arc-shaped screen box (4), wherein a plurality of arc-shaped screen boxes (4) are arranged in a stacked manner, and the arc-shaped screen boxes (4) respectively comprise an arc-shaped box body (4.1) whose front ends are respectively fixed to the inner sides of the support arms (1.3), a material distribution shell (4.2) connected to the top of the arc-shaped box body (4.1) and fixed to the inner cavity of the frame (2.1), a material feeding pipe head (4.3) arranged at the middle of the top surface of the material distribution shell body (4.2), a support plate (4.4) arranged at the front end of the inner cavity of the arc-shaped box body (4.1), and a columnar shell body (4.5) whose top end is vertically sleeved on the middle of the support plate (4.4), and a discharge port (4.1.3) is respectively arranged at the bottom of the front wall of the arc-shaped box body (4.1) at the positions on both sides of the columnar shell body (4.5), and an arc-shaped slot (4.1.1) is arranged in the middle of one side wall of the arc-shaped box body (4.1); A plurality of spliced ​​sieve plates (5) spliced ​​into a sieve structure are respectively inserted and slidably installed in the arc-shaped slots (4.1.1) in a horizontal direction, and the sieve surface of the spliced ​​sieve plates (5) is not lower than the top surface of the support plate (4.4); A blocking plate (6), wherein the blocking plate (6) is fixed to the outer side wall of the arc-shaped box body (4.1) and corresponds to the position of the arc-shaped slot (4.1.1).

2. The modular multi-layer curved screen according to claim 1, characterized in that: Guide plates (4.6) are respectively fixed on both sides of the middle of the top surface of the support plate (4.4); the rear ends of the two guide plates (4.6) are respectively connected to the two side walls of the inner cavity of the arc-shaped box body (4.1); and the front ends of the guide plates (4.6) are respectively connected to the front wall of the inner cavity of the arc-shaped box body (4.1) and to positions corresponding to both sides of the top end of the cylindrical shell (4.5).

3. The modular multi-layer curved screen according to claim 2, characterized in that: The cylindrical shell (4.5) is a triangular prism shell structure with a cross section of an isosceles triangle, and the vertex of the cylindrical shell (4.5) faces backwards.

4. The modular multi-layer curved screen according to claim 1, characterized in that: The spliced ​​sieve plate (5) comprises a sieve plate unit (5.1) and side strips (5.2) whose bottom ends are connected to both sides of the top surface of the sieve plate unit (5.1); the front and rear sides of the sieve plate unit (5.1) are respectively provided with a card slot (5.1.1) and a card strip (5.1.2); the card slot (5.1.1) and the card strip (5.1.2) are slidably engaged and matched with each other in a horizontal direction.

5. The modular multi-layer curved screen according to claim 1, characterized in that: The outer wall of the arc-shaped box body (4.1) is provided with a plurality of fixing screw holes (4.1.2) at positions outside the arc-shaped slot (4.1.1), and the edge of the blocking plate (6) is provided with fixing bolts (6.1) that are threadedly sleeved and matched with the fixing screw holes.

6. The modular multi-layer curved screen according to claim 1, characterized in that: A baffle plate 1 (4.2.1) with a front end tilted downward is fixed to a position near the top end of the rear wall of the inner cavity of the material distribution shell (4.2); a baffle plate 2 (4.2.2) with a rear end tilted downward is fixed to a position corresponding to the baffle plate 1 (4.2.1) on the front wall of the inner cavity of the material distribution shell (4.2); and a material equalizing plate (4.2.3) is fixed vertically on the top surface of the front end of the inner cavity at the bottom of the material distribution shell (4.2).

7. The modular multi-layer curved screen according to claim 1, characterized in that: A support frame (4.7) for supporting the spliced ​​screen plate (5) is fixed between the two side walls of the inner cavity of the arc-shaped box body (4.1).

8. The modular multi-layer curved screen according to claim 1, characterized in that: The two corners at the front end of the top surface of the base (1.1) are respectively provided with elastic seats (1.4); the bottom end of the support arm (1.3) is hinged to the top of the elastic seat (1.4); the rear bracket (1.2) comprises a vertical tube (1.2.1) whose bottom end is fixed to the two corners at the rear end of the top surface of the base (1.1), a column (1.2.2) slidably mounted in the vertical tube (1.2.1) and a positioning bolt (1.2.3) threadedly mounted on the top of the side wall of the vertical tube (1.2.1); the side wall of the column (1.2.2) is evenly provided with a plurality of positioning holes (1.2.2.1) that are sleeved and matched with the inner ends of the positioning bolts (1.2.3); the top of the column (1.2.2) is fixed with an elastic seat (1.4); and ear plates (2.2) hinged to the corresponding elastic seats (1.4) are provided on both sides of the bottom of the frame (2.1).

9. The modular multi-layer curved screen according to claim 8, characterized in that: The elastic seat (1.4) comprises a bottom plate (1.4.1), an ear seat (1.4.2) arranged above the bottom plate (1.4.1), and an elastic member (1.4.3) connected between the top surface of the bottom plate (1.4.1) and the bottom surface of the ear seat (1.4.2).

10. The modular multi-layer curved screen according to claim 8, characterized in that: A crossbar (1.2.4) is fixedly connected between the vertical cylinders (1.2.1), and a crossbeam (4.8) is fixedly connected between the top ends of the inner cavity side walls of the arc-shaped box body (4.1).

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