Multi-stage screening and filtering device

Abstract

The utility model relates to the technical field of screening and filtering, in particular to a multi-stage screening and filtering device which comprises an equipment assembly, the equipment assembly comprises a shell, a discharging port is formed in the lower end of one side of the shell, and a cleaning assembly is connected to the upper end of the inner wall of the shell in a sliding mode. A filtering and screening assembly is arranged under the cleaning assembly. The device has the beneficial effects that residues in liquid are filtered through a first filter screen, the residues on the surface of the first filter screen can be effectively cleaned through a telescopic plate, the situation that the first filter screen is blocked by the residues due to long-time filtering, and the filtering effect on the liquid is affected is prevented, and when the telescopic plate moves to a certain distance, the telescopic plate is moved to a certain distance. And the ball head rod enters a sliding groove under the action of a second spring, the telescopic plate is separated from the first filter screen in the reset process, and residues on the first filter screen can be continuously cleaned through such reciprocating operation.

Description

Technical Field

[0001] The utility model relates to the technical field of screening and filtering, in particular to a multi-stage screening and filtering device. Background Art

[0002] The screening device is a mechanical device that utilizes the relative movement between bulk material and the screen surface to allow some particles to pass through the screen holes and be classified into different grades according to their size. The grade of the screened particles depends on the screen surface. The screen surface is divided into three types: grate, plate screen and mesh screen.

[0003] An existing patent (publication number: CN 217247216 U ) discloses a multi-stage kudzu powder screening and filtering device, which improves the slurry filtering effect through the structural design of multiple groups of filter screens, and can also move the filter residue to the end of the filter screen to facilitate the collection of the filter residue.

[0004] However, the above technical solution still has certain defects. The device filters the liquid and residue by tilting the filter screen. However, the residue is on the filter screen, and there is a certain tension between the liquid and the filter screen, which will cause the residue to be adsorbed on the surface of the filter screen. The tilt angle alone cannot make the residue on the surface of the filter screen slide off well, which will cause the filter screen to be blocked over a long period of time. Therefore, a multi-stage screening and filtering device is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-stage screening and filtering device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage screening and filtering device, including an equipment component, the equipment component includes a shell, a discharge port is provided at the lower end of one side of the shell, a cleaning component is slidably connected to the upper end of the inner wall of the shell, and a filtering and screening component is provided directly below the cleaning component.

[0007] Preferably, the cleaning assembly includes a connecting plate fixedly connected to the upper end of one side of the shell, a servo motor is fixedly connected to the connecting plate, a rotating shaft is fixedly connected to the output end of the servo motor, a reciprocating screw is welded to the end of the rotating shaft away from the servo motor, a first connecting block is rotatably connected to the surface of the reciprocating screw, a fixing plate is welded to one side of the first connecting block, a second connecting block is fixedly connected to the side of the fixing plate away from the first connecting block, and a guide rod is slidably connected inside the second connecting block.

[0008] Preferably, a first spring is welded to the top of the inner wall of the fixed plate, and a telescopic plate is slidably connected to the inner wall of the fixed plate, the first spring is arranged inside the telescopic plate, grooves are provided at the front and rear ends of the telescopic plate, a second spring is arranged inside the groove, and the end of the second spring away from the groove is fixedly connected to a ball head rod.

[0009] Preferably, a slide groove that matches the ball head rod is opened on the inner wall of the shell, and a slope is provided on one side of the inner wall of the slide groove. The bottom end of the telescopic plate is provided with a first filter screen fixedly connected to the inner wall of the shell. The first filter screen and the slide groove are both inclined, and the inclination angle of the slide groove is greater than the inclination angle of the first filter screen.

[0010] Preferably, the filtering and screening assembly includes a belt rotatably connected to the surface of a rotating shaft, an end of the inner wall of the belt away from the rotating shaft is rotatably connected to a round shaft, an end of the round shaft away from the belt is fixedly connected to a cam, a second filter screen rotatably connected to the inner wall of the shell is provided directly above the cam, and a third filter screen rotatably connected to the lower end of the inner wall of the shell is provided directly below the cam, and multiple groups of third springs are provided on one side of the top end of the second filter screen and one side of the bottom end of the third filter screen.

[0011] Preferably, a connecting rod is rotated internally on the side of the second filter and the third filter away from the third spring, the connecting rod is fixedly connected to the shell, a collecting box is provided on the side of the shell away from the circular axis, and the second filter, the third filter and the first filter have one end away from the servo motor that passes through the side wall of the shell and is connected to the collecting box.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model proposes to filter the residue inside the liquid through the first filter screen, start the servo motor, so that the reciprocating screw rod drives the fixed plate to move, and the fixed plate can slide more smoothly under the action of the second connecting block and the guide rod. When the fixed plate moves, the first spring applies a downward force to the telescopic plate, so that the telescopic plate can always fit the surface of the first filter screen. The telescopic plate can effectively clean the residue on the surface of the first filter screen to prevent the residue from clogging the first filter screen due to long-term filtration and affecting the filtering effect of the liquid. When the telescopic plate moves to a certain distance, the ball head rod enters the slide groove under the action of the second spring, and the telescopic plate is separated from the contact with the first filter screen under the action of the ball head rod and the slide groove during the resetting process. In this way, the reciprocating movement can continuously clean the residue on the first filter screen.

[0014] The utility model proposes to better screen and filter the remaining residues in the liquid through the second filter screen and the third filter screen, and the circular shaft drives the cam to rotate synchronously to repeatedly knock the second filter screen and the third filter screen, so that the second filter screen and the third filter screen vibrate under the action of the third spring and the connecting rod, so that the remaining residues fall into the collection box for centralized treatment. The multi-layer filtration can effectively improve the filtering effect, reduce the production cost, and further improve the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall components of the utility model;

[0016] Figure 2 This is a schematic diagram of the interior of the housing of the utility model;

[0017] Figure 3 This is a schematic diagram of the cleaning component of the utility model;

[0018] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the filtering and screening component of the utility model.

[0020] In the figure: 100, equipment component; 110, housing; 111, chute; 112, inclined surface; 120, discharge port;

[0021] 200, cleaning assembly; 210, connecting plate; 220, servo motor; 230, rotating shaft; 240, reciprocating screw rod; 250, first connecting block; 260, fixing plate; 270, second connecting block; 271, guide rod; 280, telescopic plate; 291, groove; 290, first spring; 2910, second spring; 2920, ball head rod; 2930, first filter screen;

[0022] 300, filtering and screening assembly; 310, belt; 320, round shaft; 330, cam; 340, second filter; 341, connecting rod; 350, third spring; 360, third filter; 370, collecting box. DETAILED DESCRIPTION

[0023] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0024] See also Figures 1 to 4The utility model provides a technical solution: a multi-stage screening and filtering device, including an equipment component 100, the equipment component 100 includes a shell 110, a discharge port 120 is provided at the lower end of one side of the shell 110, a cleaning component 200 is slidably connected to the upper end of the inner wall of the shell 110, and a filtering and screening component 300 is provided directly below the cleaning component 200, and the cleaning component 200 includes a connecting plate 210 fixedly connected to the upper end of one side of the shell 110, a servo motor 220 is fixedly connected to the connecting plate 210, a rotating shaft 230 is fixedly connected to the output end of the servo motor 220, a reciprocating screw rod 240 is welded to the end of the rotating shaft 230 away from the servo motor 220, a first connecting block 250 is rotatably connected to the surface of the reciprocating screw rod 240, a fixing plate 260 is welded to one side of the first connecting block 250, and a fixing plate 260 is fixedly connected to the side of the fixing plate 260 away from the first connecting block 250 A second connecting block 270, a guide rod 271 is slidably connected inside the second connecting block 270, a first spring 290 is welded to the top of the inner wall of the fixed plate 260, and a telescopic plate 280 is slidably connected to the inner wall of the fixed plate 260, the first spring 290 is arranged inside the telescopic plate 280, and grooves 291 are provided at the front and rear ends of the telescopic plate 280, a second spring 2910 is arranged inside the groove 291, and a ball head rod 2920 is fixedly connected to the end of the second spring 2910 away from the groove 291, a slide groove 111 that matches the ball head rod 2920 is provided on the inner wall of the shell 110, and an inclined surface 112 is provided on one side of the inner wall of the slide groove 111, and a first filter screen 2930 fixedly connected to the inner wall of the shell 110 is provided at the bottom end of the telescopic plate 280, the first filter screen 2930 and the slide groove 111 are both inclined, and the inclination angle of the slide groove 111 is greater than the inclination angle of the first filter screen 2930.

[0025] The staff pours the liquid into the shell 110, and the liquid passes through the first filter 2930 to filter the residue inside the liquid. The servo motor 220 is started, and the reciprocating screw 240 is driven to rotate through the rotating shaft 230. The reciprocating screw 240 drives the fixed plate 260 to move through the first connecting block 250. The fixed plate 260 can slide more smoothly under the action of the second connecting block 270 and the guide rod 271. When the fixed plate 260 moves, the first spring 290 applies a downward force to the telescopic plate 280, so that the telescopic plate 280 can always fit the surface of the first filter 2930. The telescopic plate 280 can effectively clean the residue on the surface of the first filter 2930 to prevent the residue from being filtered for a long time. The first filter screen 2930 is blocked, affecting the filtering effect of the liquid. When the telescopic plate 280 moves to a certain distance, the ball head rod 2920 enters the slide groove 111 under the action of the second spring 2910. At this time, the reciprocating screw rod 240 drives the fixed plate 260 and the telescopic plate 280 to reset. During the resetting process, the telescopic plate 280 is separated from the contact with the first filter screen 2930 under the action of the ball head rod 2920 and the slide groove 111. The ball head rod 2920 is separated from the slide groove 111 through the inclined surface 112, and the telescopic plate 280 is driven by the force of the first spring 290 to rewrite and fit the first filter screen 2930. In this way, the reciprocating motion can continuously clean the residue on the first filter screen 2930. Embodiment 2

[0026] See also Figure 2 and Figure 5 The filtering and screening assembly 300 includes a belt 310 rotatably connected to the surface of the rotating shaft 230, an end of the inner wall of the belt 310 away from the rotating shaft 230 is rotatably connected to a round shaft 320, and an end of the round shaft 320 away from the belt 310 is fixedly connected to a cam 330, a second filter screen 340 rotatably connected to the inner wall of the housing 110 is provided directly above the cam 330, and a third filter screen 360 rotatably connected to the lower end of the inner wall of the housing 110 is provided directly below the cam 330, and a side of the top of the second filter screen 340 A plurality of third springs 350 are provided on one side of the bottom end of the third filter 360, and a connecting rod 341 is rotated inside the second filter 340 and the third filter 360 away from the third spring 350. The connecting rod 341 is fixedly connected to the shell 110, and a collecting box 370 is provided on the side of the shell 110 away from the circular shaft 320. The ends of the second filter 340, the third filter 360 and the first filter 2930 away from the servo motor 220 pass through the side wall of the shell 110 and are connected to the collecting box 370.

[0027] Larger residues are filtered and sieved through the first filter screen 2930, and the remaining residues in the liquid are better sieved and filtered through the second filter screen 340 and the third filter screen 360. The belt 310 drives the circular shaft 320 to rotate through the rotating shaft 230, and the circular shaft 320 drives the cam 330 to rotate synchronously. The rotation of the cam 330 repeatedly knocks the second filter screen 340 and the third filter screen 360, so that the second filter screen 340 and the third filter screen 360 vibrate under the action of the third spring 350 and the connecting rod 341, so that the remaining residues fall into the collection box 370 for centralized treatment. The multi-layer filtration can effectively improve the filtration effect, reduce the production cost, and further improve the production quality.

[0028] In actual use, the staff pours liquid into the housing 110, and the liquid passes through the first filter screen 2930 to filter the residue inside the liquid. The servo motor 220 is started, and the reciprocating screw 240 is driven to rotate through the rotating shaft 230. The reciprocating screw 240 drives the fixed plate 260 to move through the first connecting block 250. The fixed plate 260 can slide more smoothly under the action of the second connecting block 270 and the guide rod 271. When the fixed plate 260 moves, the first spring 290 applies a downward force to the telescopic plate 280, so that the telescopic plate 280 can always fit the surface of the first filter screen 2930, and the retractable plate 280 can effectively clean the residue on the surface of the first filter screen 2930 to prevent the residue from clogging the first filter screen 2930 due to long-term filtering, thereby affecting the filtering effect of the liquid. When the retractable plate 280 moves to a certain distance, the ball head rod 2920 enters the slide groove 111 under the action of the second spring 2910, and the reciprocating screw rod 240 drives the fixed plate 260 and the retractable plate 280 to reset. The retractable plate 280 moves in the ball head rod 2920 during the resetting process. The head rod 2920 and the slide groove 111 cause the telescopic plate 280 to be separated from the contact with the first filter screen 2930, and the ball head rod 2920 is separated from the slide groove 111 through the inclined surface 112, and the telescopic plate 280 is driven by the force of the first spring 290 to rewrite and fit the first filter screen 2930, so that the reciprocating movement can continuously clean the residue on the first filter screen 2930, and the first filter screen 2930 filters and screens the larger residue, and the rest of the residue in the liquid is better filtered through the second filter screen 340 and the third filter screen 360. Screening and filtering, through the rotating shaft 230, the belt 310 drives the round shaft 320 to rotate, and the round shaft 320 drives the cam 330 to rotate synchronously. The rotation of the cam 330 repeatedly knocks the second filter screen 340 and the third filter screen 360, so that the second filter screen 340 and the third filter screen 360 vibrate under the action of the third spring 350 and the connecting rod 341, and the remaining residue falls into the collection box 370 for centralized treatment. Through multi-layer filtration, the filtration effect can be effectively improved, the production cost can be reduced, and the production quality can be further improved.

[0029] 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 multi-stage screening and filtering device, comprising an equipment component (100), characterized in that: The equipment component (100) comprises a housing (110), a discharge port (120) is provided at a lower end of one side of the housing (110), a cleaning component (200) is slidably connected to an upper end of an inner wall of the housing (110), and a filtering and screening component (300) is provided directly below the cleaning component (200); The cleaning assembly (200) comprises a connecting plate (210) fixedly connected to an upper end of one side of the housing (110), a servo motor (220) fixedly connected to the connecting plate (210), an output end of the servo motor (220) fixedly connected to a rotating shaft (230), an end of the rotating shaft (230) away from the servo motor (220) being welded to a reciprocating screw rod (240), a surface of the reciprocating screw rod (240) being rotatably connected to a first connecting block (250), a fixing plate (260) being welded to one side of the first connecting block (250), a side of the fixing plate (260) away from the first connecting block (250) being fixedly connected to a second connecting block (270), and a guide rod (271) being slidably connected inside the second connecting block (270); The filtering and screening assembly (300) comprises a belt (310) rotatably connected to the surface of a rotating shaft (230); an end of the inner wall of the belt (310) away from the rotating shaft (230) is rotatably connected to a round shaft (320); an end of the round shaft (320) away from the belt (310) is fixedly connected to a cam (330); a second filter screen (340) rotatably connected to the inner wall of a housing (110) is provided directly above the cam (330); and a third filter screen (360) rotatably connected to the lower end of the inner wall of the housing (110) is provided directly below the cam (330); and a plurality of groups of third springs (350) are provided on one side of the top end of the second filter screen (340) and one side of the bottom end of the third filter screen (360).

2. A multi-stage screening and filtering device according to claim 1, characterized in that: A first spring (290) is welded to the top of the inner wall of the fixed plate (260), and the inner wall of the fixed plate (260) is slidably connected to a telescopic plate (280), the first spring (290) is arranged inside the telescopic plate (280), the front and rear ends of the telescopic plate (280) are provided with grooves (291), a second spring (2910) is arranged inside the groove (291), and the end of the second spring (2910) away from the groove (291) is fixedly connected to a ball head rod (2920).

3. A multi-stage screening and filtering device according to claim 2, characterized in that: The inner wall of the shell (110) is provided with a slide groove (111) which matches the ball head rod (2920); one side of the inner wall of the slide groove (111) is provided with an inclined surface (112); the bottom end of the telescopic plate (280) is provided with a first filter screen (2930) fixedly connected to the inner wall of the shell (110); the first filter screen (2930) and the slide groove (111) are both inclined; the inclination angle of the slide groove (111) is greater than the inclination angle of the first filter screen (2930).

4. A multi-stage screening and filtering device according to claim 3, characterized in that: A connecting rod (341) is rotatably provided inside the second filter screen (340) and the third filter screen (360) on a side away from the third spring (350); the connecting rod (341) is fixedly connected to the housing (110); a collecting box (370) is provided on a side of the housing (110) away from the circular shaft (320); and one end of the second filter screen (340), the third filter screen (360) and the first filter screen (2930) away from the servo motor (220) passes through the side wall of the housing (110) and is connected to the collecting box (370).

Images