A vibrating screen

Abstract

The utility model discloses a vibrating screen, including base, with base elastic connection's bottom disc, motor fixed in the middle part of bottom disc, with motor's output shaft connection's drive column, the screen assembly of fixedly arranged on this bottom disc upper end and with screen assembly detachable connection's enclosure, the top of drive column and the screen of screen assembly abuts, the bottom of bottom disc side wall is equipped with the discharge gate, and the enclosure is equipped with the slag outlet. In the utility model, the screen is obliquely arranged, the middle part of the screen is reciprocatingly pushed out in the vertical direction by the drive column, and the screen position around the middle part forms an inclined surface shaking shape. The screen formed in the shaking shape can ensure that there is no residue in the middle part of the screen, and help the filtered residue to quickly move to the slag outlet for discharge. Meanwhile, the guide plate is arranged to adapt to the residue moving guide function for the different vibration slag discharge directions.

Description

Technical Field

[0001] This utility model relates to the field of ceramic raw material filtration and processing technology, and in particular to a vibrating screen. Background Technology

[0002] Ceramic raw materials contain impurities such as sand and gravel. These impurities must be removed through filtration before the raw materials can be used to make ceramic products. The raw materials are conveyed through pipes and fall onto the center of a vibrating screen. The slurry passes through the screen mesh, while impurities remain above it. A vibrator is installed at the base of the vibrating screen. The impurities at the center of the screen are vibrated and dispersed outwards, exiting through the impurity outlet, thus completing the filtration process. However, after a period of use, the screen mesh of current vibrating screens loosens, creating a situation where the center is lower than the periphery. This causes impurities to accumulate in the center of the screen and cannot disperse outwards, affecting the efficiency of slurry flow. In severe cases, slurry may even overflow from the impurity outlet. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a vibrating screen that is both easy to filter quickly and easy to discharge slag quickly.

[0004] To solve the above-mentioned technical problems, the present invention provides a vibrating screen, comprising a base, a chassis elastically connected to the base, a motor fixed in the middle of the chassis, a transmission column connected to the output shaft of the motor, a screen assembly fixed at the upper end of the chassis, and a enclosure detachably connected to the screen assembly. The top of the transmission column abuts against the screen in the screen assembly, and is used to drive the middle part of the screen to rise and fall under the action of the motor, so that the entire screen forms an undulating vibration. A discharge port is provided on the bottom side wall of the chassis for discharging the material to be used after being filtered by the screen assembly. A slag discharge port is provided on the enclosure for discharging residue.

[0005] With the above structure, the output end of the motor abuts against the middle of the screen, causing the height of the middle of the screen to rise and fall, so that the entire screen vibrates. This allows the filtered residue to move along the inclined surface formed when the screen is pushed out under the vibration state and accumulate at a lower position, and then be discharged through the slag outlet. The filtered raw material to be used is discharged and collected through the discharge outlet. The structure is simple and compact, and the operation is convenient.

[0006] To improve vibration efficiency, preferably, multiple springs are vertically fixed on the upper surface of the base along the circumferential direction, and a connecting frame is fixed on the upper end of each spring. The upper surface of the connecting frame is fixedly connected to the outer wall of the upper part of the chassis to realize the elastic connection between the base and the chassis.

[0007] To ensure the vibration effect and prevent raw material leakage, the chassis preferably has a tapered cross-section that is wider at the top and narrower at the bottom. A motor is installed on the base at the lower position corresponding to the middle of the chassis. The upper end face of the transmission column is a convex arc surface, and the outer side wall of the arc surface abuts against the lower end face of the middle of the screen.

[0008] To prevent the filtered raw materials from leaking out, preferably, a sealing component is provided on the chassis at the insertion position of the transmission column, and the sealing component is sleeved on the outer wall of the transmission column.

[0009] To facilitate installation and simplify the structure, preferably, the screen assembly further includes a connecting ring fixedly connected to the opening at the upper end of the chassis. A vertically arranged bent section is wound around the connecting ring in the circumferential direction, and an upwardly extending extension section is wound around one side of the upper end of the bent section. The screen is placed on the upper end of the extension section, and the edge of the screen is fitted to the inner side wall of the enclosure at the position corresponding to the outer side wall of the extension section.

[0010] To improve filtration and slag discharge efficiency, preferably, the upper surface of the extended section is sloped, so that the upper surface of the screen is angled, and the slag outlet is connected to the lower end of the screen.

[0011] To ensure the sealing of the screen edge and facilitate installation, preferably, a horizontally extending boss is provided around the outside of the bent section, and a sealing ring is fitted on the outer wall of the boss; the lower end of the enclosure is screwed to the chassis, and the inner cross-section of the enclosure is a stepped hole structure with a smaller upper section and a larger lower section. The inner wall of the larger hole end of the stepped hole structure abuts against the outer wall of the sealing ring, and the inner wall of the smaller hole end of the stepped hole structure abuts against the outer wall of the corresponding extension section of the screen edge.

[0012] To enhance the stability of the fence connection, preferably, a clamp ring is fitted on the outer wall of the fence at the position corresponding to the sealing ring, so as to tighten and fix the fence on the connecting ring.

[0013] To facilitate adjustment of the filtration and slag discharge status at the slag outlet, preferably, the enclosure is equipped with an adjustable guide plate at the position corresponding to the slag outlet.

[0014] To facilitate adjustment of the guide plate position and simplify the installation structure, preferably, a strip-shaped through groove is provided on the enclosure at the position corresponding to the slag outlet. A connecting rod is inserted through the strip-shaped through groove. One side of the connecting rod protrudes from the enclosure and is provided with a fixing block that is screwed to the enclosure. The other side of the connecting rod extends into the enclosure and is provided with a guide plate that extends downward.

[0015] Beneficial effects: In this utility model, the screen is inclined and a transmission column is set to push the middle of the screen back and forth in the vertical direction, forming an inclined shaking shape with the surrounding screen positions. The resulting shaking screen can ensure that there is no residue left in the middle of the screen, and helps the filtered residue to move quickly to the slag outlet for discharge. At the same time, for situations where the vibration discharge direction is different, the guide plate is set to facilitate the adaptation and guidance of residue movement. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 for Figure 1 Enlarged view of point A in the image.

[0019] Figure 3 This is a diagram showing the usage status of the guide plate.

[0020] Figure 4 This is a diagram showing the usage state of this utility model.

[0021] The meanings of the labels in the attached diagram are as follows:

[0022] Base-1; Chassis-10; Discharge port-11; Motor-12; Transmission column-121; Arc surface-122; Spring-13; Connecting frame-14;

[0023] Connecting ring-20; Bend section-22; Boss-221; Extension section-23; Clamp ring-24; Sealing ring-25;

[0024] Enclosure-3; Slag outlet-30; Strip channel-31; Connecting rod-32; Fixing block-33; Guide plate-4; Sealing component-5. Detailed Implementation

[0025] Depend on Figure 1As shown, this utility model includes a base 1, a chassis 10 elastically connected to the base 1, a motor 12 fixed in the middle of the chassis 10, a transmission column 121 connected to the output shaft of the motor 12, a screen assembly fixed to the upper end of the chassis 10, and a retaining wall 3 detachably connected to the screen assembly. The top of the transmission column 121 abuts against the screen 2 in the screen assembly. A discharge port 11 is provided on the bottom side wall of the chassis 10, and a slag discharge port 30 is provided on the side wall of the retaining wall 3 for discharging residue. In this embodiment, the motor 12 is preferably a reciprocating linear motor, which drives the transmission column 121 to perform linear reciprocating motion, thereby causing the middle height of the screen 2 to rise and fall, so that the entire screen 2 forms an undulating vibration pattern to achieve vibration filtration processing of ceramic raw materials. It should be explained that the movement range of the motor 12 in this embodiment is relatively small, preferably 1.5cm, and the top diameter of the transmission column 121 is relatively large and has a relatively smooth elliptical shape. Combined with the toughness of the material of the screen 2 (such as nylon mesh), when it is impacted by the transmission column 121, the toughness of the screen 2 is used to buffer the external force through deformation. Through actual experiments and use, the effect of this utility model can be achieved.

[0026] Specifically, a plurality of springs 13 are vertically fixed along the circumferential direction on the upper end surface of the base 1. A connecting frame 14 is fixedly fixed at the upper end of each spring 13. The upper end surface of the connecting frame 14 is fixedly connected to the outer wall of the upper part of the chassis 10, thus elastically connecting the base 1 and the chassis 10. In this embodiment, the cross-section of the chassis 10 is a tapered structure that is wider at the top and narrower at the bottom. A motor 12 is provided on the base 1 at a position below the middle part of the chassis 10. The output shaft of the motor 12 is connected to a transmission column 121 that extends vertically upward into the interior of the chassis 10. The upper end surface of the transmission column 121 is a convex arc surface 122, which abuts against the lower end surface of the middle part of the screen 2.

[0027] Since the ceramic raw materials fall into the chassis 10 through the screen 2 after filtration, a sealing component 5 is provided on the chassis 10 at the insertion position of the transmission column 121 to prevent the material to be used from falling into the chassis 10 from affecting the movement of the transmission column 121. The transmission column 121 passes through the sealing component 5 to enable the transmission column 121 to reciprocate vertically relative to the chassis 10 under the drive of the motor 12. In this embodiment, the sealing component 5 is an oil seal type sealing ring, which facilitates the installation of the transmission column 121, meets the guiding effect during use, and ensures the sealing of the installation position.

[0028] The screen assembly also includes a connecting ring 20 that is fixedly connected to the upper end of the chassis 10. Please refer to further details. Figure 2 and Figure 4As shown, a vertically arranged bent section 22 is wound around the connecting ring 20 along the circumferential direction, and an upwardly extending extension section 23 is wound around one side of the upper end of the bent section 22. During installation, the screen 2 is laid over the outside of the extension section 23, and the edge of the screen 2 is fitted with the inner side wall of the enclosure 3 at the position corresponding to the outer side wall of the extension section 23. The upper end face of the wound extension section 23 is generally set at an angle so that the upper end face of the laid screen 2 is set at an angle. The slag outlet 30 is connected to the lower end position of the screen 2. A horizontally extending boss 221 is wound around the bent section 22, and a sealing ring 25 is fitted on the outer side wall of the boss 221.

[0029] The lower end of the enclosure 3 is screwed to the chassis 10. The enclosure 3 has a stepped hole structure with a smaller upper section and a larger lower section. The inner wall of the larger hole end of the stepped hole structure abuts against the outer wall of the sealing ring 25, and the inner wall of the smaller hole end of the stepped hole structure abuts against the outer wall of the corresponding extension section 23 of the screen 2. A clamping ring 24 is fitted on the outer wall of the enclosure 3 at the position corresponding to the sealing ring 25, so as to tighten the enclosure 3 on the connecting ring 20.

[0030] Please continue to refer to this. Figure 3 As shown, an adjustable guide plate 4 is provided on the enclosure 3 at the position corresponding to the slag outlet 30. Specifically, a strip-shaped through groove 31 is provided on the enclosure 3 at the position corresponding to the slag outlet 30. A connecting rod 32 is inserted through the strip-shaped through groove 31. One side of the connecting rod 32 protrudes from the enclosure 3 and is provided with a fixing block 33 that is screwed and fixed to the enclosure 3. The other side of the connecting rod 32 extends into the enclosure 3 and is provided with a guide plate 4 that extends downward.

[0031] The working principle of this utility model is as follows:

[0032] like Figure 1 and Figure 2 As shown, during installation, the screen 2 is first placed over the upper end of the extension section 23, with the edge of the screen 2 wrapped around the outer wall of the extension section 23. Then, a sealing ring 25 is fitted onto the outer wall of the boss 221. Next, the enclosure 3 is fitted onto the outer side of the bent section 22. A bolt is inserted through the lower edge of the enclosure 3, and this bolt passes through the connecting ring 20 and the base plate 10 from top to bottom. The protruding ends of the bolts are secured with nuts to connect and fix the enclosure 3 to the base plate 10. Since the enclosure 3 has a stepped hole structure with a smaller upper section and a larger lower section, the inner wall of the larger hole end of the stepped hole structure abuts against the outer wall of the sealing ring 25, and the inner wall of the smaller hole end of the stepped hole structure abuts against the edge of the screen 2 at the corresponding position on the outer wall of the extension section 23.

[0033] Finally, a clamping ring 24 is fitted on the outer wall of the enclosure 3 at the position corresponding to the sealing ring 25, so as to tighten the enclosure 3 on the connecting ring 20 and ensure the installation stability of the sealing position under vibration conditions.

[0034] Meanwhile, since the extended section 23 is formed into a ring shape, and the cross-section of the upper end face of the extended section 23 is set with a rounded corner structure, the material to be used after being filtered by the screen 2 at this point will not only fall into the chassis 10 through the hollow part of the ring shape, but the rounded corner structure can also prevent the material to be used from remaining and accumulating at this point, thus preventing wear on the bent edge of the screen 2 and causing damage during use.

[0035] Meanwhile, since the upper surface of the extension section 23 is sloped, the entire screen 2 is also sloped. Furthermore, the upper surface of the transmission column 121 is a convex arc surface 122, which fits against the lower surface of the middle part of the screen 2. When the motor 12 drives the transmission column 121 upward, making the plane of the middle part of the screen 2 higher than the plane of the edge of the screen 2 (e.g., ...), ... Figure 4 As shown in the diagram, with the screen 2 protruding from the middle, the transmission column 121 continues to move upward within the amplitude range. The screen 2's toughness and deformation can still adapt to maintain a taut and inclined state. This is beneficial for the ceramic raw materials to move quickly for filtration under impact and vibration. It is also beneficial for the filtered residue to move quickly along the inclined surface of the screen 2 to the lower part of the screen 2 and accumulate. Especially after multiple uses, the middle of the screen 2 becomes concave due to the concentration of the ceramic raw materials' gravity. The protrusion formed by the impact of the transmission column 121 and the vibration effect can effectively prevent residue from remaining in the middle of the screen 2.

[0036] Due to the toughness of the screen 2, even if the transmission column 121 moves downward, the distance of the reciprocating stroke can be adjusted to meet the requirements of the vibration amplitude, ensuring that there is no residue left in the middle of the screen 2. The height difference between the highest and lowest points of the extension section 23 is 1.5cm to 2.5cm, preferably 2cm, and the plane where the arc apex of the arc surface 122 is located is 0.8-1.2cm higher than the plane where the highest point of the extension section 23 is located, preferably 1cm. Thus, under the premise that the vibration amplitude is preferably 1.5cm, the operating frequency of the motor 12 can be selected accordingly.

[0037] When in use, the motor 12 is turned on, which drives the transmission column 121 to reciprocate and strike the screen 2, causing the screen 2 to vibrate. Under the vibration, the raw material above the screen 2 is filtered to the bottom of the chassis 10 and discharged and collected through the discharge port 11. On the other hand, the residue left by filtration moves to a lower position along the inclined surface of the screen 2 and is discharged through the slag outlet 30. The guide plate 4 set in the slag outlet 30 facilitates the timely discharge of residue and reduces the retention of residue in the slag outlet 30.

[0038] It should be noted that, since the ceramic raw material is inverted and placed on the screen 2, it spreads and moves in all directions along the inclined surface of the screen 2. If the guide plate 4 is located to the left or right of the slag outlet 30, it will accumulate on the side that blocks the discharge direction. For example, if... Figure 3 As shown, when the guide plate 4 is moved to the left side of the slag outlet 30, the residue will be discharged from the right side of the slag outlet 30. The left side of the guide plate 4 will block the discharge of the residue. Only the residue that accumulates and protrudes beyond the position range of the guide plate 4 along the inclined surface of the screen 2 will move towards the slag outlet 30 for discharge. At this time, the guide plate 4 is moved to the right and the residue accumulated on the left side is released. The right-moving guide plate 4 forms a partition and accumulates on the right side of the slag outlet 30. When the residue accumulation position on the right side protrudes beyond the position range of the guide plate 4, the guide plate 4 is moved to the left again and the residue accumulated on the right side is discharged. This operation is repeated to extend the filtration time of the raw material at the slag outlet 30 position. The vibration of the screen 2 improves the filtration efficiency.

[0039] If the ceramic raw material fluid is relatively thin and has a high flow rate, then the guide plate 4 needs to be moved to the middle position of the slag outlet 30 (e.g., Figure 3 (At the dotted line position in the image), ensure that the raw material flowing down the left and right sides of screen 2 is discharged quickly, and avoid residue affecting the flow and filtration effect of the raw material fluid.

[0040] To facilitate the movement of the guide plate 4, a strip-shaped channel 31 is provided on the enclosure 3 at the position corresponding to the slag outlet 30. A connecting rod 32 is inserted through the strip-shaped channel 31. One side of the connecting rod 32 protrudes from the enclosure 3 and is provided with a fixing block 33 that is screwed and fixed to the enclosure 3. The other side of the connecting rod 32 extends into the enclosure 3 and is provided with a guide plate 4 that extends downward. In this way, simply loosening the bolts and moving the connecting rod 32 in the strip-shaped channel 31 will move the guide plate 4 synchronously. After it moves into place, the fixing block 33 is screwed and fixed to the enclosure 3, thus simultaneously fixing the connecting rod 32 and the guide plate 4. The operation is convenient.

[0041] In addition, a sealing component 5 is provided on the chassis 10 at the insertion position of the transmission column 121. The sealing component 5 is sleeved on the outer wall of the transmission column 121. The sealing component 5 is an oil seal type sealing ring, which can prevent material from leaking out from the insertion position of the transmission column 121 and also provide guidance for the movement of the transmission column 121.

Claims

1. A vibrating screen, characterized in that: The device includes a base (1), a chassis (10) elastically connected to the base (1), a motor (12) fixed in the middle of the chassis (10), a transmission column (121) connected to the output shaft of the motor (12), a screen assembly fixed at the upper end of the chassis (10), and a enclosure (3) detachably connected to the screen assembly. The top of the transmission column (121) abuts against the screen (2) in the screen assembly, and is used to drive the middle part of the screen (2) to rise and fall under the action of the motor (12), so that the entire screen (2) forms an undulating vibration. A discharge port (11) is provided on the bottom side wall of the chassis (10) for discharging the material to be used after being filtered by the screen assembly. A slag outlet (30) is provided on the enclosure (3) for discharging the residue.

2. A vibrating screen as described in claim 1, characterized in that: The upper surface of the base (1) is vertically fixed with multiple springs (13) along the circumferential direction. Each spring (13) has a connecting frame (14) fixed at its upper end. The upper surface of the connecting frame (14) is fixedly connected to the outer wall of the upper part of the chassis (10) to realize the elastic connection between the base (1) and the chassis (10).

3. A vibrating screen as described in claim 2, characterized in that: The chassis (10) has a tapered structure that is wider at the top and narrower at the bottom. A motor (12) is provided on the base (1) at the lower position corresponding to the middle of the chassis (10). The upper end face of the transmission column (121) is a convex arc surface (122). The outer side wall of the arc surface (122) abuts against the lower end face of the middle of the screen (2).

4. A vibrating screen as described in claim 1, characterized in that: A sealing component (5) is provided on the chassis (10) at the insertion position of the transmission column (121), and the sealing component (5) is sleeved on the outer wall of the transmission column (121).

5. A vibrating screen as described in claim 4, characterized in that: The screen assembly also includes a connecting ring (20) fixedly connected to the upper opening of the chassis (10). A vertically arranged bent section (22) is arranged around the connecting ring (20) in the circumferential direction. An upwardly extending extension section (23) is arranged around one side of the upper end of the bent section (22). The screen (2) is placed on the upper end of the extension section (23). The edge of the screen (2) is fitted to the inner side wall of the enclosure (3) at the position corresponding to the outer side wall of the extension section (23).

6. A vibrating screen as described in claim 5, characterized in that: The upper surface of the extension section (23) is set as an inclined surface so that the upper surface of the screen (2) is set at an angle, and the slag outlet (30) is connected to the lower end of the screen (2).

7. A vibrating screen as described in claim 5, characterized in that: A horizontally extending boss (221) is provided around the outside of the bent section (22), and a sealing ring (25) is fitted on the outer wall of the boss (221); the lower end of the enclosure (3) is screwed to the chassis (10), and the inner cross section of the enclosure (3) is a stepped hole structure with a smaller upper section and a larger lower section. The inner wall of the larger hole end of the stepped hole structure abuts against the outer wall of the sealing ring (25), and the inner wall of the smaller hole end of the stepped hole structure abuts against the outer wall of the edge extension section (23) of the screen (2).

8. A vibrating screen as described in claim 7, characterized in that: A clamp ring (24) is fitted on the outer wall of the enclosure (3) at the position corresponding to the sealing ring (25) so as to clamp and fix the enclosure (3) on the connecting ring (20).

9. A vibrating screen as described in claim 1, characterized in that: The enclosure (3) is equipped with an adjustable guide plate (4) at the position corresponding to the slag outlet (30).

10. A vibrating screen as described in claim 9, characterized in that: A strip-shaped through groove (31) is provided on the enclosure (3) at the position corresponding to the slag outlet (30). A connecting rod (32) is inserted through the strip-shaped through groove (31). One side of the connecting rod (32) protrudes from the enclosure (3) and is provided with a fixing block (33) that is screwed to the enclosure (3). The other side of the connecting rod (32) extends into the enclosure (3) and is provided with a guide plate (4) that extends downward.

Images