Filter press for concentrating iron concentrate tailings

Abstract

The utility model relates to the technical field of filter presses, in particular to a filter press for concentrating fine iron powder tailings, which comprises a rack, a filter plate group consisting of a plurality of filter plates arranged along a first direction, as well as a baffle and a pressing and pushing device which are respectively arranged on two sides of the filter plate group along the first direction, the pressing and pushing device comprises a driving source, a driving shaft, a moving sleeve, a pushing piece, a pushed piece, a first elastic element and a second elastic element, and the adjacent filter plates are elastically connected through the first elastic element; the driving shaft is driven by a driving source to rotate; a guide groove is formed in the driving shaft and provided with a spiral section and an annular section. According to the utility model, by arranging the pressing and pushing device, a plurality of filter plates can be pressed together when the driving shaft of the pressing and pushing device rotates in the forward direction so as to carry out dehydration operation; and when the driving shaft of the pressing and pushing device rotates reversely, the plurality of filter plates are separated from one another and vibrate, so that filter residues adhered to the filter plates are shaken off, manual auxiliary falling is not needed, and manual intervention is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter presses, in particular to a filter press for concentrating iron ore concentrate tailings. Background Art

[0002] During the iron ore concentrate mining process, plate and frame filter presses are often used for solid-liquid separation. Currently, a common plate and frame filter press consists of a filter plate assembly consisting of multiple filter plates arranged alternately, and a clamping device that presses the multiple filter plates together. When the multiple filter plates are pressed together, a filter press chamber is formed between adjacent filter plates. The filter press chamber contains a filter cloth for intercepting solids. Sludge pressurized to 0.2-0.4 MPa is passed into this filter press chamber. The filtrate, under pressure, passes through the filter cloth and exits the filter, completing dehydration. To facilitate the removal of the filter residue from the filter press chamber, existing plate and frame filter presses are generally equipped with a filter plate pulling device. This filter plate pulling device can pull the adjacent filter plates apart a certain distance after dehydration is completed, opening the filter press chamber and allowing the filter residue to fall out of the filter press chamber. However, this method of removing the filter residue is inefficient, and the filter residue may also adhere to the filter cloth, requiring manual assistance to remove it. Utility Model Content

[0003] The purpose of the utility model is to provide a filter press for concentrating iron ore concentrate tailings, so as to solve the problems raised in the above-mentioned background technology.

[0004] The utility model is realized through the following technical solutions:

[0005] 4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole comprises a first end, a second end, and a second end. The bosses comprise a through-hole, a screw bolt, and a nut. The through-hole comprises a first end, a second end, and a second end. The bosses comprise a through-hole, a second end, and a second end. The through-hole

[0006] Optionally, there are multiple protrusions, and the multiple protrusions are arranged around the axis of the drive shaft.

[0007] Optionally, a rolling member is provided on the side of the pushing member that contacts the pushed member, and the pushing member is in rolling contact with the pushed member through the rolling member.

[0008] Optionally, the frame has a left frame and a right frame arranged along the first direction, a guide rail is connected between the left frame and the right frame, the filter plate has a connecting ear that slides onto the guide rail, and the first elastic element is a first compression spring arranged between the connecting ears of adjacent filter plates and sleeved on the guide rail.

[0009] Optionally, the pushed member has a connecting column fixedly connected to the filter plate, the movable sleeve has a connecting platform that slides with the connecting column, and the second elastic element is a second compression spring arranged between the pushed member and the connecting platform and sleeved on the outside of the connecting column.

[0010] Optionally, the filter press further comprises a U-shaped receiving trough for receiving filter residue dropped from between adjacent filter plates, wherein the receiving trough is provided with a discharge outlet on a side adjacent to the baffle, and a spiral auger is provided in the receiving trough.

[0011] Optionally, the spiral auger and the drive shaft are connected via a transmission component.

[0012] Optionally, the guide block is connected to the movable sleeve via a torsion spring, and the guide block has a guide slope.

[0013] Optionally, the filter plate group includes two end plates and multiple middle plates located between the two end plates, both sides of the middle plate are concave to form an annular depression, the depression is covered with filter cloth, and the middle plate is also provided with a drainage channel communicating with the depression, and a connecting hole is provided through the middle plate located at the center of the depression, and one of the end plates is provided with a water injection pipe communicating with the connecting hole.

[0014] Optionally, a sealing structure is provided between the contact surfaces of adjacent middle plates and between the contact surfaces of the middle plate and the end plates.

[0015] Compared with the prior art, the utility model provides a filter press for concentrating iron ore concentrate tailings, which has the following beneficial effects:

[0016] The utility model is provided with a pressing and pushing device, which can not only press the multiple filter plates together when the driving shaft of the pressing and pushing device rotates in the forward direction to perform the dehydration operation; but also can separate the multiple filter plates from each other and generate vibration when the driving shaft of the pressing and pushing device rotates in the reverse direction, so that the filter residue adhered to the filter plates can be shaken off without manual assistance, thus reducing manual intervention.

[0017] The utility model provides a receiving trough, a discharge outlet and a spiral auger structure, so that the filter residue falling from between the filter plates can be received by the receiving trough, and the spiral auger can also be used to transport the filter residue falling into the receiving trough toward the discharge outlet of the receiving trough, so that the filter residue can be uniformly discharged from the discharge outlet of the receiving trough for post-processing;

[0018] The utility model connects the guide block to the movable sleeve through a torsion spring. The guide block is provided with a guide bevel. The guide bevel forms a tip of the guide block. When the driving shaft switches from reverse rotation to forward rotation, the torsion spring provides a deflection force to the guide block. This deflection force causes the tip of the guide block to automatically and smoothly transition from the annular segment to the spiral segment. In this way, there is no need to manually move the guide block from the annular segment to the spiral segment, and the degree of automation is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of one axis side of the utility model;

[0020] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0021] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure at point B;

[0022] Figure 4 This is another schematic diagram of the axial side structure of the utility model;

[0023] Figure 5 It is a partial structural diagram of the filter plate group of the utility model.

[0024] In the figure: 100, frame; 110, left frame; 120, right frame; 130, guide rail; 200, filter plate group; 210, connecting ear; 211, end plate; 212, middle plate; 2120, recess; 2121, connecting hole; 213, filter cloth; 214, drainage channel; 215, water injection pipe; 216, sealing structure; 300, baffle; 400, driving source; 410, driving shaft; 411, guide groove; 4110, spiral segment; 4111, ring segment; 4 20. Movable sleeve; 421. Guide block; 4210. Guide slope; 422. Connecting platform; 423. Insertion hole; 424. Torsion spring; 425. Mounting plate; 426. Rotating shaft; 430. Pushing member; 431. Rolling member; 440. Pushed member; 441. Protrusion; 442. Connecting column; 443. Inner hole; 450. First elastic element; 460. Second elastic element; 500. Receiving groove; 501. Discharge outlet; 510. Auger; 600. Transmission component. DETAILED DESCRIPTION

[0025] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0026] Embodiment: According to the embodiment of the present invention, a filter press is provided. The filter press can not only be used to remove moisture from iron ore concentrate tailings, but also be used in other solid-liquid separation scenarios such as sludge dehydration. This embodiment takes the solid-liquid separation scenario of iron ore concentrate tailings concentration as an example for explanation. Therefore, it is also called a filter press for iron ore concentrate tailings concentration. Figures 1 to 5 The filter press comprises a frame 100, a filter plate group 200 consisting of a plurality of filter plates arranged along a first direction, and baffles 300 and a pressing device respectively arranged on both sides of the filter plate group 200 along the first direction. Figure 1 In the left and right directions, the pushing device includes a driving source 400, a driving shaft 410, a movable sleeve 420, a pushing member 430, a pushed member 440, a first elastic element 450 and a second elastic element 460, wherein adjacent filter plates are elastically connected by the first elastic element 450; the driving shaft 410 is driven to rotate by the driving source 400, and the driving source 400 can be a motor or other driving device that can drive the driving shaft 410 to rotate; a guide groove 411 is provided on the driving shaft 410, and the guide groove 411 has a spiral section 4110 and an annular section 4111, and the annular section 4111 is adjacent to the driving source 40 0 is configured, one end of the spiral segment 4110 spirally extends in a first direction and terminates in an annular segment 4111; one end of the movable sleeve 420 is tightly abutted against the filter plate, and the other end is provided with a guide block 421 that cooperates with the guide groove 411. The pushing member 430 is fixed to the drive shaft 410, and the pushed member 440 is fixed to the filter plate and elastically connected to the movable sleeve 420 via a second elastic element 460. The pushed member 440 has a protruding portion 441 on the side facing the pushing member 430. When the guide block 421 is located in the annular segment 4111, the pushing member 430 contacts the side of the pushed member 440 having the protruding portion 441. Specifically, in this embodiment, the movable sleeve 420 is a tubular structure, and the drive shaft 410 is movably inserted through the end of the movable sleeve 420 having the guide block 421, with the drive shaft 410 and the movable sleeve 420 having a clearance fit.

[0027] The filter press for concentrating iron ore tailings adopting the above-mentioned structure can drive the driving shaft 410 to rotate in the forward direction through the driving source 400 when multiple filter plates need to be pressed together. When the driving shaft 410 rotates in the forward direction, the movable sleeve 420 will move toward the filter plate group 200 under the guidance of the spiral section 4110 of the guide block 421 and the guide groove 411 until the multiple filter plates are pressed together. When the multiple filter plates are pressed, the first elastic element 450 will produce elastic deformation. After the multiple filter plates are pressed, the dehydration operation can be carried out; when the multiple filter plates need to be separated to remove the filter plates, When filtering residue between the filter plates 200, it is only necessary to control the reverse rotation of the drive shaft 410 through the drive source 400 to make the guide block 421 and the guide groove 411 guide and cooperate again. The process of this guiding cooperation is divided into two parts. The first part is the initial stage of the reverse rotation of the drive shaft 410. In the initial stage of the rotation of the drive shaft 410, the guide block 421 moves along the spiral section 4110 of the guide groove 411, and the movable sleeve 420 moves in the direction away from the filter plate group 200. The elastic potential energy of the first elastic element 450 is released, and the multiple filter plates are separated from each other under the rebound force of the first elastic element 450. Separation, most of the filter residue will fall from between the separated filter plates at this time, and a small part will stick to the filter plates. The second part is the later stage of the reverse rotation of the drive shaft 410. In the later stage of the rotation of the drive shaft 410, the guide block 421 will transition from the spiral segment 4110 of the guide groove 411 to the annular segment 4111. In the annular segment 4111, the guide block 421 will not be displaced in the first direction. At this time, the pushing member 430 just contacts the side of the pushed member 440 having the protrusion 441. Under the cooperation of the protrusion 441 and the second elastic element 460, The pushing member 430 will push the pushed member 440 and the filter plate fixedly connected to the pushed member 440 to reciprocate along the first direction. The reciprocating motion along the first direction can be understood as vibration in the first direction. Because adjacent filter plates are connected by the first elastic element 450, the first elastic element 450 can transmit the vibration generated by the filter plate fixedly connected to the pushed member 440 to other filter plates, so that all filter plates vibrate along the first direction, so that the small part of the filter residue adhered to the filter plate can be shaken off without manual assistance, thereby reducing manual intervention.

[0028] In some embodiments, as Figure 2 As shown, there are a plurality of protrusions 441, which are arranged around the axis of the drive shaft 410. By arranging a plurality of protrusions 441, the vibration frequency of the filter plate can be increased while the rotation speed of the drive shaft 410 remains unchanged, thereby improving the slag removal effect.

[0029] In order to reduce the wear between the pushing member 430 and the pushed member 440, in some embodiments, a rolling member 431 is provided on the side where the pushing member 430 contacts the pushed member 440, and the pushing member 430 contacts the pushed member 440 through the rolling member 431. Figure 2 As shown, in one embodiment, the rolling element 431 is a roller. In another embodiment, the rolling element 431 is a ball (not shown).

[0030] In some embodiments, as Figure 1 As shown, the frame 100 includes a left side frame 110 and a right side frame 120 arranged along a first direction. A guide rail 130 is connected between the left and right sides 110 and 120. The baffle 300 is fixed to the right side frame 120 by screws. The filter plates have connecting ears 210 that slide onto the guide rail 130. The first elastic element 450 is a first compression spring disposed between the connecting ears 210 of adjacent filter plates and sleeved onto the guide rail 130. This arrangement, on the one hand, improves the alignment of the multiple filter plates in the first direction by cooperating with the guide rail 130. On the other hand, sleeved on the guide rail 130, the first compression spring ensures stability when the first compression spring is subjected to force.

[0031] In some embodiments, as Figure 2 As shown, the push member 440 has a connecting post 442 fixedly connected to the filter plate, the movable sleeve 420 has a connecting platform 422 that slidably cooperates with the connecting post 442, and the second elastic element 460 is a second compression spring disposed between the push member 440 and the connecting platform 422 and sleeved on the outside of the connecting post 442. Specifically, in this embodiment, the push member 440 is an annular structure and has an inner hole 443 through which the movable sleeve 420 can move. The push member 440 and the filter plate can be fixedly connected via four connecting posts 442. The four connecting posts 442 are equidistantly arranged along the circumference of the drive shaft 410. The connecting platform 422 has a socket 423 through which the connecting posts 442 can move. It can be understood that the push member 440 is elastically connected to the movable sleeve 420 via the second compression spring, and the connecting posts 442 can ensure stability when the second compression spring is subjected to force.

[0032] In some embodiments, as Figure 3 As shown, the filter press also includes a U-shaped receiving trough 500 for receiving filter residue that falls from between adjacent filter plates. The receiving trough 500 is provided with a discharge port 501 on a side adjacent to the baffle 300, and a spiral auger 510 is provided in the receiving trough 500. With this arrangement, the filter residue that falls from between the filter plates can be received by the receiving trough 500, and the spiral auger 510 can also be used to transport the filter residue that falls into the receiving trough 500 toward the discharge port 501 of the receiving trough 500, so that the filter residue can be discharged from the discharge port 501 of the receiving trough 500 in a unified manner for post-processing.

[0033] In some embodiments, as Figure 3 As shown, the spiral auger 510 is connected to the drive shaft 410 via a transmission component 600. Figure 1 As shown, in one embodiment, the transmission component 600 comprises a belt and pulleys, with a pulley provided on each of the drive shaft 410 and the auger 510, and the two pulleys are connected by a belt. It will be appreciated that when the drive shaft 410 rotates, the belt can drive the auger 510 to rotate synchronously, thus eliminating the need for an additional drive device such as a motor for the auger 510. In other embodiments, the transmission component 600 can alternatively comprise a chain and sprocket structure, a gear rack, or other structure capable of achieving a transmission connection between the auger 510 and the drive shaft 410.

[0034] In order to ensure that the guide block 421 can smoothly transition from the annular section 4111 of the guide groove 411 to the spiral section 4110 when the drive shaft 410 switches from reverse rotation to forward rotation, as shown in FIG. Figure 3 As shown, in some embodiments, the guide block 421 is connected to the movable sleeve 420 via a torsion spring 424, and the guide block 421 has a guide slope 4210. Specifically in this embodiment, as shown in FIG. Figure 3 As shown, a mounting plate 425 is fixedly welded to the movable sleeve 420, and the guide block 421 is rotatably connected to the mounting plate 425 via a rotating shaft 426. A torsion spring 424 is sleeved on the outside of the rotating shaft 426, and the two ends of the torsion spring 424 are respectively connected to the guide block 421 and the mounting plate 425. It can be understood that the guide bevel 4210 forms a tip of the guide block 421. When the drive shaft 410 switches from reverse rotation to forward rotation, the torsion spring 424 provides a deflection force to the guide block 421. This deflection force causes the tip of the guide block 421 to automatically and smoothly transition from the annular segment 4111 to the spiral segment 4110. In this way, there is no need to manually move the guide block 421 from the annular segment 4111 to the spiral segment 4110, which increases the degree of automation.

[0035] In some embodiments, as Figure 5As shown, the filter plate group 200 includes two end plates 211 and multiple middle plates 212 located between the two end plates 211. Both sides of the middle plate 212 are concave to form an annular depression 2120, and the depression 2120 is covered with a filter cloth 213. The middle plate 212 is also provided with a drainage channel 214 communicating with the depression 2120. A connecting hole 2121 is provided on the middle plate 212 located at the center of the depression 2120, and a water injection pipe 215 communicating with the connecting hole 2121 is provided on one of the end plates 211. By adopting the above-mentioned filter plate group 200 structure, when multiple filter plates are pressed together, the iron ore concentrate tailings that need solid-liquid separation can be pressurized and introduced into the space between the filter plates from the water injection pipe 215. The iron ore concentrate tailings can reach various positions of the filter plate group 200 through the connecting holes 2121 on the middle plate 212. After being filtered by the filter cloth 213, the iron ore concentrate tailings enter the recess 2120 of the middle plate 212. The solid part (that is, the filter residue) will be intercepted by the filter cloth 213 and gradually form a filter cake on the outside of the filter cloth 213, while the liquid part is discharged through the drainage channel 214 connected to the recess 2120. All the drainage channels 214 on the middle plate 212 can be connected by a pipe to discharge the filtered water uniformly.

[0036] In some embodiments, as Figure 5 As shown, sealing structures 216 are provided between the contact surfaces of adjacent middle plates 212 and between the contact surfaces of the middle plates 212 and the end plates 211. Specifically, the sealing structures 216 may be sealing rings. With this arrangement, when the multiple filter plates of the filter plate assembly 200 are tightly pressed together, the sealing structures 216 can enhance the sealing between adjacent filter plates, preventing liquid from leaking out from between the adjacent filter plates.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter press for concentrating iron ore concentrate tailings, characterized in that: The invention comprises a frame (100), a filter plate group (200) composed of a plurality of filter plates arranged along a first direction, and baffles (300) and a push device respectively arranged on both sides of the filter plate group (200) along the first direction, wherein the push device comprises a driving source (400), a driving shaft (410), a movable sleeve (420), a pushing member (430), a pushed member (440), a first elastic element (450) and a second elastic element (460), wherein adjacent filter plates are elastically connected via the first elastic element (450); the driving shaft (410) is driven to rotate by the driving source (400); a guide groove (411) is provided on the driving shaft (410), the guide groove (411) having a spiral section (4110) and an annular section (4111), the annular section (4111) being adjacent to the driving shaft (400). A power source (400) is provided, one end of the spiral section (4110) spirally extends in the first direction and terminates at the annular section (4111); one end of the movable sleeve (420) is tightly pressed against the filter plate, and the other end is provided with a guide block (421) that cooperates with the guide groove (411); the pushing member (430) is fixed on the driving shaft (410); the pushed member (440) is fixed to the filter plate and elastically connected to the movable sleeve (420) through the second elastic element (460); a protrusion (441) is protruded on the side of the pushed member (440) facing the pushing member (430); and when the guide block (421) is located in the annular section (4111), the pushing member (430) contacts the side of the pushed member (440) having the protrusion (441).

2. The filter press for concentrating iron ore concentrate tailings according to claim 1, characterized in that: There are a plurality of protrusions (441), and the plurality of protrusions (441) are arranged around the axis of the drive shaft (410).

3. The filter press for concentrating iron ore concentrate tailings according to claim 1, characterized in that: A rolling member (431) is provided on the side of the pushing member (430) that contacts the pushed member (440), and the pushing member (430) is in rolling contact with the pushed member (440) through the rolling member (431).

4. The filter press for concentrating iron ore concentrate tailings according to claim 1, characterized in that: The frame (100) has a left side frame (110) and a right side frame (120) arranged along the first direction; a guide rail (130) is connected between the left side frame (110) and the right side frame (120); the filter plate has a connecting ear (210) that is slidably sleeved on the guide rail (130); and the first elastic element (450) is a first compression spring that is arranged between the connecting ears (210) of adjacent filter plates and sleeved on the guide rail (130).

5. The filter press for concentrating iron ore concentrate tailings according to claim 1, characterized in that: The push member (440) has a connecting column (442) fixedly connected to the filter plate, the movable sleeve (420) has a connecting platform (422) slidingly engaged with the connecting column (442), and the second elastic element (460) is a second compression spring arranged between the push member (440) and the connecting platform (422) and sleeved on the outside of the connecting column (442).

6. The filter press for concentrating iron ore concentrate tailings according to claim 1, characterized in that: It also includes a U-shaped receiving trough (500) for receiving filter residue dropped from between adjacent filter plates. The receiving trough (500) is provided with a discharge outlet (501) on a side adjacent to the baffle (300), and a spiral auger (510) is provided in the receiving trough (500).

7. The filter press for concentrating iron ore concentrate tailings according to claim 6, characterized in that: The spiral auger (510) and the drive shaft (410) are in transmission connection via a transmission component (600).

8. The filter press for concentrating iron ore concentrate tailings according to claim 1, characterized in that: The guide block (421) is connected to the movable sleeve (420) via a torsion spring (424), and the guide block (421) has a guide inclined surface (4210).

9. The filter press for concentrating iron ore concentrate tailings according to any one of claims 1 to 8, characterized in that: The filter plate group (200) comprises two end plates (211) and a plurality of middle plates (212) located between the two end plates (211). Both sides of the middle plates (212) are concave to form an annular depression (2120), and the depression (2120) is covered with a filter cloth (213). The middle plates (212) are also provided with a drainage channel (214) communicating with the depression (2120). A communication hole (2121) is provided through the middle plate (212) located at the center of the depression (2120). One of the end plates (211) is provided with a water injection pipe (215) communicating with the communication hole (2121).

10. The filter press for concentrating iron ore concentrate tailings according to claim 9, characterized in that: A sealing structure (216) is provided between the contact surfaces of adjacent middle plates (212) and between the contact surfaces of the middle plate (212) and the end plate (211).

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