Circulating net belt type fluctuation-free rotating net

Abstract

The utility model belongs to the technical field of screen changers, and relates to a circulating screen belt type fluctuation-free rotating screen which comprises a machine head and an annular filter screen belt, a filter cartridge driven by a power device to rotate is arranged in the machine head, the filter screen belt and the filter cartridge rotate synchronously, a screen belt mounting seat is arranged on one side of the machine head, and the screen belt mounting seat is arranged on the other side of the machine head. A mesh belt rotating drum is rotationally arranged on the mesh belt mounting seat, the filter mesh belt comprises a filter section wound on the filter drum, a tensioning section wound on the mesh belt rotating drum and a cleaning section between the filter section and the tensioning section, and a cleaning device is correspondingly arranged on the cleaning section of the filter mesh belt. The circulating net belt type fluctuation-free rotating net provided by the utility model has the advantages that the net does not need to be replaced when in use, so that pressure fluctuation is avoided, and a better filtering effect is also achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screen changers and relates to a circulating mesh belt type non - fluctuating screen changer. Background Art

[0002] A rotary screen changer is a common screen changer. Its structure generally includes a machine head. Inside the machine head, there is a filter cylinder driven to rotate by a driving device, and a filter mesh is wrapped around the filter cylinder. During filtration, the material enters the inner cavity of the machine head from the feed port of the machine head, then passes through the filter mesh and the filter cylinder for filtration and enters the inner cavity of the filter cylinder, and then exits from the discharge port. When used for a long time, impurities will adhere to the filter mesh. To ensure the filtration effect, it is necessary to replace the filter mesh.

[0003] However, since the inner cavity of the machine head is in a high - pressure state, how to replace the filter mesh without stopping the machine and without generating pressure fluctuations during the replacement of the filter mesh has become a very big challenge.

[0004] Chinese Patent Application for Invention CN116394494A (Publication Date: July 7, 2023) discloses a continuous mesh belt type non - fluctuating screen changer, which includes a machine head. Inside the machine head, there is a filter cylinder driven to rotate by a first driving device. One side of the machine head is provided with a mesh belt inlet and a mesh belt outlet. The filter mesh belt passes through the mesh belt inlet, bypasses the filter cylinder, and then exits from the mesh belt outlet. Both ends of the filter mesh belt are respectively wound around a pay - off roller and a take - up roller. The take - up roller is driven to rotate by a second driving device. A pair of traction rollers is arranged at the mesh belt outlet. The filter mesh belt passes between the traction rollers and is pulled in the direction of the take - up roller by them. The take - up roller, the filter cylinder, and the traction rollers synchronously convey the filter mesh belt. This device requires a large amount of mesh belt, and still needs roll - changing operation during use. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a circulating mesh belt type non - fluctuating screen changer, which does not require screen changing during use, so no pressure fluctuations will be generated, and it also has a better filtration effect.

[0006] To solve the above - mentioned technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0007] A circulating mesh belt type non - fluctuating screen changer includes a machine head and an annular filter mesh belt. Inside the machine head, there is a filter cylinder driven to rotate by a power device. The filter mesh belt rotates synchronously with the filter cylinder. One side of the machine head is provided with a mesh belt mounting seat. A mesh belt rotating cylinder is rotatably arranged on the mesh belt mounting seat. The filter mesh belt includes a filtering section wound around the filter cylinder, a tensioning section wound around the mesh belt rotating cylinder, and a cleaning section between the filtering section and the tensioning section. A cleaning device is correspondingly arranged for the cleaning section of the filter mesh belt.

[0008] In the above-mentioned circulating mesh belt type non-fluctuating transfer net, the cleaning device is a cleaning machine, and the nozzle of the cleaning machine is arranged opposite to the cleaning section of the filter mesh belt.

[0009] Alternatively, in the above-mentioned circulating mesh belt type non-fluctuating transfer net, the cleaning device is an ultrasonic cleaning device. During the process of the filter mesh belt being circulated and conveyed, its cleaning section passes through the ultrasonic cleaning device.

[0010] In the above-mentioned circulating mesh belt type non-fluctuating transfer net, tensioning chutes are oppositely arranged on the mesh belt mounting seat. An adjustable tensioning slider is slidably arranged in the tensioning chutes. A tensioning bearing is arranged on the tensioning slider, and the mesh belt drum is assembled in the tensioning bearing.

[0011] In the above-mentioned circulating mesh belt type non-fluctuating transfer net, an adjusting handwheel is screwed on the mesh belt mounting seat. The end of the screw rod of the adjusting handwheel extends inwards into the tensioning chute and is fixedly connected with the tensioning slider. Further, the tensioning chute is an open groove, and a cover plate is arranged on its outer side. The screw rod of the adjusting handwheel is screwed on the cover plate.

[0012] In the above-mentioned circulating mesh belt type non-fluctuating transfer net, the power device is a motor. The motor is arranged outside the machine head and is fixedly connected with the machine head through a connecting piece. A coupling for connecting the motor shaft and the filter drum shaft is arranged in the connecting piece.

[0013] In the above-mentioned circulating mesh belt type non-fluctuating transfer net, a traction seat is arranged between the machine head and the mesh belt mounting seat. Mesh belt inlets and mesh belt outlets are respectively arranged corresponding to the mesh belt mounting seat, the traction seat and the machine head. An upper traction roller and a lower traction roller are rotatably arranged in the traction seat. The filter mesh belt passes through between the upper traction roller and the lower traction roller and is tractioned to rotate in a cycle by them. The filter drum and the traction rollers synchronously convey the filter mesh belt. The synchronous conveyance of the filter drum and the traction rollers means that the filter drum and the traction rollers have the same linear velocity.

[0014] In the above-mentioned circulating mesh belt type non-fluctuating transfer net, a first gear is sleeved on the filter drum shaft in the connecting piece, a second gear is sleeved on the upper traction roller, the first gear meshes with the second gear, a third gear is sleeved on the other end of the upper traction roller, a fourth gear is arranged on the lower traction roller, and the third gear meshes with the fourth gear.

[0015] In the above-mentioned circulating mesh belt type non-fluctuating transfer net, the contact area between the filter mesh belt and the filter drum forms a filtering area, and the non-contact area forms a non-filtering area. A core rod is arranged in the filter drum. One side of the core rod is in contact connection with the inner wall of the filter drum in the non-filtering area, and a notch is arranged on the other side, and a filtering cavity is formed between the inner wall of the filter drum in the filtering area.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model provides a circulating mesh belt type non-fluctuating network transfer device, which adopts an annular filter mesh belt and realizes the filtering function through the circulating rotation of the mesh belt. At the same time, a cleaning device is used to clean the filter mesh belt during the operation of the equipment to ensure that the filter mesh belt entering the machine head does not carry impurities. Therefore, it is no longer necessary to replace the filter mesh belt, thus completely avoiding the pressure fluctuation caused by network replacement. Due to the synchronous cleaning of the filter mesh belt, a better filtering effect can also be obtained. In addition, through the structure of the utility model, the pressure value of filtration in the machine head can be set more conveniently and kept in a constant state. Description of the Drawings

[0018] Figure 1 is a perspective view of the utility model;

[0019] Figure 2 is a radial sectional view of the utility model;

[0020] Reference numerals: 1, machine head; 2, filter mesh belt; 3, filter cylinder; 4, mesh belt mounting seat; 5, mesh belt rotating cylinder; 6, tensioning chute; 7, tensioning slider; 8, tensioning bearing; 9, adjusting handwheel; 10, motor; 11, connecting piece; 12, traction seat; 13, upper traction roller; 14, lower traction roller; 15, first gear; 16, second gear; 17, third gear; 18, fourth gear; 19, mandrel. Detailed Embodiment

[0021] The following further describes the utility model with specific embodiments in conjunction with the drawings, see Figure 1-2 :

[0022] A circulating mesh belt type non-fluctuating network transfer device includes a machine head 1 and an annular filter mesh belt 2. A filter cylinder 3 driven by a power device to rotate is arranged in the machine head 1. The filter mesh belt 2 rotates synchronously with the filter cylinder 3. A mesh belt mounting seat 4 is arranged on one side of the machine head 1. A mesh belt rotating cylinder 5 is rotatably arranged on the mesh belt mounting seat 4. The filter mesh belt 2 includes a filtering section wound around the filter cylinder 3, a tensioning section wound around the mesh belt rotating cylinder 5, and a cleaning section between the filtering section and the tensioning section. A cleaning device is correspondingly arranged at the cleaning section of the filter mesh belt 2.

[0023] Compare with the attached Figure 1, the working mode of this embodiment is as follows: The power device drives the filter cartridge 3 to rotate, and the frictional force between the filter cartridge 3 and the filter mesh belt 2 causes the filter mesh belt 2 to rotate synchronously with the filter cartridge 3. Since this embodiment uses an annular filter mesh belt 2, the filter mesh belt 2 rotates cyclically between the filtering section, the tensioning section, and the cleaning section, and at the same time, a cleaning device is provided on the exposed cleaning section to clean the filter mesh belt 2 synchronously. When the filter mesh belt 2 is located in the filtering section, it filters the impurities in the material and makes the impurities adhere to the filter mesh belt 2, and then circulates out of the machine head 1. When it is located in the cleaning section, the cleaning device is used to remove the impurities adhering to the filter mesh belt 2, and then it circulates to the tensioning section, and after passing through the cleaning section again, it enters the machine head 1 to re-filter the impurities. The method of filtering impurities is the same as that of the equipment in this field: The material enters from the inlet of the machine head 1, passes through the filter mesh belt 2 and the filter cartridge 3 in sequence, enters the filtering cavity, and then only discharges from the outlet of the machine head 1 through the material outlet.

[0024] This embodiment can be equipped with a variety of cleaning devices. First, the cleaning device is a cleaning machine, and the nozzle of the cleaning machine is arranged opposite to the cleaning section of the filter mesh belt 2; second, the cleaning device is an ultrasonic cleaning device, and during the cyclic conveying process of the filter mesh belt 2, its cleaning section passes through the ultrasonic cleaning device..

[0025] Tensioning chutes 6 are oppositely arranged on the above-mentioned mesh belt mounting seat 4, an adjustable tensioning slider 7 is slidably arranged in the tensioning chutes 6, a tensioning bearing 8 is arranged on the tensioning slider 7, and the mesh belt rotating cylinder 5 is assembled in the tensioning bearing 8. During installation, first install the filter mesh belt 2 in a relaxed state, and then move the mesh belt rotating cylinder 5 in the tensioning direction to tension the filter mesh belt 2.

[0026] The specific tensioning adjustment method is as follows: An adjusting handwheel 9 is screwed on the mesh belt mounting seat 4, and the end of the screw rod of the adjusting handwheel 9 extends inward into the tensioning chute 6 and is fixedly connected to the tensioning slider 7. Further, the tensioning chute 6 is an open groove, and a cover plate is provided on its outer side, and the screw rod of the adjusting handwheel 9 is screwed on the cover plate.

[0027] The above-mentioned power device is a motor 10, the motor 10 is arranged outside the machine head 1 and is fixedly connected to the machine head 1 through a connecting piece 11, and a coupling connecting the motor shaft and the filter cartridge shaft is arranged in the connecting piece 11.

[0028] A traction seat 12 is provided between the above-mentioned machine head 1 and the mesh belt mounting seat 4. Mesh belt inlets and outlets are respectively provided corresponding to the mesh belt mounting seat 4, the traction seat 12 and the machine head 1. An upper traction roller 13 and a lower traction roller 14 are rotatably arranged in the traction seat 12. The filter mesh belt 2 passes through between the upper traction roller 13 and the lower traction roller 14 and is tractioned by them to circulate and rotate. The filter cylinder 3 and the traction rollers synchronously convey the filter mesh belt 2. The filter cylinder 3 and the traction rollers synchronously conveying the filter mesh belt 2 means that the filter cylinder 3 and the traction rollers have the same linear velocity. During operation, the two acting forces of the filter cylinder 3 and the traction rollers can act on the filter mesh belt 2 simultaneously to ensure the uniform and stable circulation of the filter mesh belt 2.

[0029] In this embodiment, the traction rollers are synchronously driven by a motor: A first gear 15 is sleeved on the shaft of the filter cylinder 3 in the connecting member 11, a second gear 16 is sleeved on the upper traction roller 13, the first gear 15 meshes with the second gear 16, a third gear 17 is sleeved on the other end of the upper traction roller 13, a fourth gear 18 is arranged on the lower traction roller 14, and the third gear 17 meshes with the fourth gear 18.

[0030] Compare with the attached Figure 2 , the contact area between the above-mentioned filter mesh belt 2 and the filter cylinder 3 forms a filtering area, and the non-contact area forms a non-filtering area. In order to ensure that the material enters the interior of the filter cylinder 3 from the filtering area, a core rod 19 is arranged in the filter cylinder 3. One side of the core rod 19 is in contact connection with the inner wall of the filter cylinder 3 in the non-filtering area to close the non-filtering area, and a notch is arranged on the other side to form a filtering cavity between it and the inner wall of the filter cylinder 3 in the filtering area.

[0031] The above-mentioned embodiment is only a preferred embodiment of the present invention, and does not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A circulating net-belt type non-wave rotating net, characterized in that: The invention comprises a machine head (1) and an annular filter mesh belt (2), wherein a filter cartridge (3) driven to rotate by a power device is arranged inside the machine head (1), the filter mesh belt (2) and the filter cartridge (3) rotate synchronously, a mesh belt mounting seat (4) is arranged on one side of the machine head (1), a mesh belt rotating drum (5) is rotatably arranged on the mesh belt mounting seat (4), the filter mesh belt (2) comprises a filter section wound around the filter cartridge (3), a tensioning section wound around the mesh belt rotating drum (5), and a cleaning section between the filter section and the tensioning section, and a cleaning device is correspondingly arranged for the cleaning section of the filter mesh belt (2).

2. The circulating mesh belt type non-wave rotating mesh according to claim 1 is characterized in that: The cleaning device is a cleaning machine, and the nozzle of the cleaning machine is arranged opposite to the cleaning section of the filter mesh belt (2).

3. The circulating mesh belt type non-wave rotating mesh according to claim 1 is characterized in that: A tensioning groove (6) is arranged on the mesh belt mounting seat (4) in a relative manner, an adjustable tensioning slider (7) is slidably arranged in the tensioning groove (6), a tensioning bearing (8) is arranged on the tensioning slider (7), and the mesh belt drum (5) is assembled in the tensioning bearing (8).

4. The circulating mesh belt type non-wave rotating mesh according to claim 3 is characterized in that: An adjusting hand wheel (9) is threadedly connected to the mesh belt mounting seat (4), and the screw end of the adjusting hand wheel (9) extends inwardly into the tensioning slide groove (6) and is tightly connected to the tensioning slider (7).

5. The circulating mesh belt type non-wave rotating mesh according to claim 1 is characterized in that: The power device is a motor (10), which is arranged outside the machine head (1) and fixedly connected to the machine head via a connecting piece (11), wherein a coupling connecting the motor shaft and the filter cartridge shaft is arranged inside the connecting piece (11).

6. The circulating mesh belt type non-wave rotating mesh according to claim 5, characterized in that: A traction seat (12) is arranged between the machine head (1) and the mesh belt mounting seat (4); a mesh belt inlet and a mesh belt outlet are respectively arranged on the mesh belt mounting seat (4), the traction seat (12) and the machine head (1); an upper traction roller (13) and a lower traction roller (14) are rotatably arranged in the traction seat (12); the filter mesh belt (2) is passed through the upper traction roller (13) and the lower traction roller (14) and is tractioned and rotated in a circular manner by them; the filter drum (3) and the traction roller synchronously convey the filter mesh belt (2).

7. The circulating mesh belt type non-wave rotating mesh according to claim 6, characterized in that: A first gear (15) is sleeved on the filter drum shaft in the connecting member (11), a second gear (16) is sleeved on the upper traction roller (13), the first gear (15) is meshed with the second gear (16), a third gear (17) is sleeved on the other end of the upper traction roller (13), a fourth gear (18) is provided on the lower traction roller (14), the third gear (17) is meshed with the fourth gear (18).

8. The circulating mesh belt type non-wave rotating mesh according to claim 1, characterized in that: The contact area between the filter belt (2) and the filter cartridge (3) forms a filter area, and the non-contact area forms a non-filter area. A core rod (19) is arranged in the filter cartridge (3), one side of the core rod (19) is in contact with and connected to the inner wall of the filter cartridge (3) in the non-filter area, and the other side is provided with a notch to form a filter cavity with the inner wall of the filter cartridge (3) in the filter area.

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