A filter press device for heavy metal wastewater treatment

Abstract

The application relates to the technical field of wastewater treatment, and discloses a filter-pressing device for heavy metal wastewater treatment, which comprises a sludge collecting pool, a discharge pipe, a sludge pump and a filter press, a dredging mechanism for dredging the inlet of the discharge pipe is installed on the sludge collecting pool, the dredging mechanism comprises a first electric push rod installed on the side wall of the sludge collecting pool, a dredging frame fixedly connected to the output end of the first electric push rod, a first guide rod slidably connected to the dredging frame and a first moving plate fixedly connected to one end of the first guide rod away from the dredging frame, a dredging pipe is rotatably connected to the first moving plate, and a driving assembly for driving the dredging pipe to rotate and move towards the discharge pipe is installed on the dredging frame. The application is convenient for dredging the inlet of the discharge pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, and particularly relates to a filter pressing device for heavy metal wastewater treatment. BACKGROUND

[0002] At present, wastewater treatment, as an important part of environmental protection and water resource management, is derived from the urgent need for effective management and purification of a large amount of wastewater generated in industrial production and daily life. With the acceleration of industrialization and the continuous growth of population, the discharge of various types of wastewater has increased dramatically, which contains a large amount of organic matter, inorganic pollutants, heavy metals, oil and other harmful substances.

[0003] The prior art can refer to the Chinese utility model patent with the authorization announcement number CN203095748U, which discloses a heavy metal wastewater treatment system, which discloses a sludge filter pressing system, which mainly comprises a sludge collecting pool, a sludge pump and a filter press. The sludge generated by filter pressing is received and treated by a qualified unit.

[0004] The above-mentioned sludge collecting pool is communicated with the inlet of the sludge pump through the discharge pipe, but the inlet of the discharge pipe is easy to be blocked by the sludge, and the above-mentioned structure is not convenient for dredging the inlet of the discharge pipe, which can affect the normal work of the sludge pump. SUMMARY

[0005] In order to facilitate dredging the inlet of the discharge pipe, the present application provides a filter pressing device for heavy metal wastewater treatment, which adopts the following technical scheme:

[0006] A filter pressing device for heavy metal wastewater treatment, comprising a sludge collecting pool, a discharge pipe, a sludge pump and a filter press, a dredging mechanism for dredging the inlet of the discharge pipe is installed on the sludge collecting pool, the dredging mechanism comprises a first electric push rod installed on the side wall of the sludge collecting pool, a dredging frame fixedly connected to the output end of the first electric push rod, a first guide rod slidingly connected to the dredging frame, and a first moving plate fixedly connected to the end of the first guide rod away from the dredging frame; a dredging pipe is rotatably connected to the first moving plate, and a driving assembly for driving the dredging pipe to rotate and driving the dredging pipe to move towards the discharge pipe is installed on the dredging frame.

[0007] By adopting the above technical scheme, when it is necessary to dredge the discharge pipe, the first electric push rod is started first, at this time the output end of the first electric push rod drives the dredging frame to move downward, the downward movement of the dredging frame drives the dredging pipe to move downward, and then the driving assembly drives the dredging pipe to rotate and drives the dredging pipe to move towards the discharge pipe, so that the dredging pipe can rotate into the inlet of the discharge pipe, thereby dredging the discharge pipe. In summary, the dredging mechanism is convenient for dredging the discharge pipe.

[0008] Optionally, the driving assembly comprises a mounting frame mounted on one side of the dredging frame, a second moving plate vertically slidingly connected to the mounting frame, and a transmission member mounted on the mounting frame for driving the second moving plate to move; a connecting rod is hingedly connected between the second moving plate and the first moving plate, one side of the dredging frame is fixedly connected with a second guide rod, the dredging pipe is sleeved on the second guide rod, a plurality of helical blocks are fixedly connected to the side wall of the second guide rod in sequence in the circumferential direction, and a plurality of helical grooves are sequentially formed in the inner wall of the dredging pipe in the circumferential direction, and the plurality of helical blocks and the plurality of helical grooves are one-to-one corresponding and matched.

[0009] By adopting the above technical scheme, when the dredging pipe needs to be driven to rotate and move, the second moving plate is first driven downward by the transmission member, the second moving plate drives the connecting rod to move by moving downward, the connecting rod drives the first moving plate to move by moving, and the first moving plate moves to drive the dredging pipe to move; in addition, when the dredging pipe moves, the dredging pipe can rotate under the action of the helical blocks and the helical grooves; in summary, the driving assembly is convenient for driving the dredging pipe to rotate and move.

[0010] Optionally, the transmission member comprises a driving motor mounted on the top of the mounting frame, a lead screw fixedly connected to the output shaft of the driving motor, and a third guide rod fixedly connected to the mounting frame; the second moving plate is threadedly connected to the lead screw, and the second moving plate is slidingly connected to the third guide rod.

[0011] By adopting the above technical scheme, when the second moving plate needs to be driven to move, the driving motor is first started, the output shaft of the driving motor drives the lead screw to rotate at this time, and the lead screw drives the second moving plate to move by rotating; in summary, the driving assembly is convenient for driving the second moving plate to move.

[0012] Optionally, the top of the dredging frame is fixedly connected with a fourth guide rod, the top of the sludge collecting tank is fixedly connected with a first horizontal plate, and the fourth guide rod is vertically slidingly connected to the first horizontal plate.

[0013] By adopting the above technical scheme, the fourth guide rod is provided, which is convenient for guiding the dredging frame, so as to improve the stability of the dredging frame.

[0014] Optionally, a dispersing mechanism is mounted at the inlet of the discharge pipe in the sludge collecting tank, the dispersing mechanism comprises a second horizontal plate fixedly connected to the top of the sludge collecting tank, a fifth guide rod slidingly connected to the second horizontal plate, a moving seat fixedly connected to the bottom of the fifth guide rod, a driving assembly mounted on the second horizontal plate for driving the moving seat to move upward, and a first rotating shaft rotationally connected to the moving seat; a first supporting spring is arranged between the moving seat and the second horizontal plate, a driving rotating assembly for driving the first rotating shaft to rotate is mounted on the moving seat, a rotating rod is fixedly connected to the bottom of the first rotating shaft, and a plurality of dispersing rods are fixedly connected to the side wall of the rotating rod.

[0015] When the sludge at the inlet of the discharge pipe needs to be dispersed so as to enable the dredging pipe to enter the discharge pipe, the moving seat is first driven by the displacement assembly to move upward, the first rotating shaft is driven by the moving seat to move upward, and the rotating rod is driven by the first rotating shaft to move upward, so that the rotating rod can avoid blocking the dredging pipe, then the first rotating shaft is driven by the rotating drive assembly to rotate, the rotating rod is driven by the first rotating shaft to rotate, and the dispersing rod is driven by the rotating rod to rotate, so that the sludge at the inlet of the discharge pipe can be dispersed so as to enable the dredging pipe to enter the discharge pipe.

[0016] Optionally, the displacement assembly comprises a sixth guide rod slidably connected to the second horizontal plate, a third moving plate fixedly connected to the bottom of the sixth guide rod, a second supporting spring fixedly connected between the third moving plate and the second horizontal plate, and a grooved wheel installed at the bottom of the second horizontal plate; a rope body is embedded on the grooved wheel, and two ends of the rope body are fixedly connected to the moving seat and the third moving plate respectively; the top of the third moving plate is hingedly connected with a driving plate, and the bottom of the driving plate can abut against the top of the third moving plate.

[0017] By adopting the above technical scheme, when the second moving plate moves downward, the driving plate is driven to move downward, the third moving plate is driven to move downward by the driving plate, and then the moving seat is driven to move upward by the third moving plate under the action of the rope body; in summary, the displacement assembly is provided, which facilitates driving the moving seat to move upward.

[0018] Optionally, the rotating drive assembly comprises a second rotating shaft rotatably connected to the moving seat, a first bevel gear fixedly connected to the side wall of the second rotating shaft, and a second bevel gear fixedly connected to the first rotating shaft; the first bevel gear is engaged with the second bevel gear; the side wall of the second rotating shaft is fixedly connected with a spur gear, the spur gear is engaged with a rack, and the rack is fixedly connected to the inner wall of one side of the sludge collecting tank.

[0019] By adopting the above technical scheme, when the moving seat moves upward, the spur gear is driven to move upward, then the spur gear is driven to rotate under the action of the rack, the second rotating shaft is driven to rotate by the spur gear, the first bevel gear is driven to rotate by the second rotating shaft, the second bevel gear is driven to rotate by the first bevel gear, and the first rotating shaft is driven to rotate by the second bevel gear; in summary, the rotating drive assembly is provided, which facilitates driving the first rotating shaft to rotate.

[0020] Optionally, the fifth guide rod is threadedly connected with a supporting ring.

[0021] By adopting the above technical scheme, the supporting ring is provided, which facilitates supporting the fifth guide rod and further facilitating supporting the moving seat.

[0022] Optionally, a pushing assembly is arranged on the second horizontal plate and used to drive the fifth guide rod to move upward.

[0023] By adopting the above technical scheme, the pushing assembly is arranged to facilitate the driving of the fifth guide rod to reset, the fifth guide rod to reset drives the moving seat to reset, and the moving seat to reset drives the rotating rod to reset, thereby facilitating the driving of the rotating rod to reset.

[0024] Optionally, the pushing assembly comprises a second electric push rod arranged on the top of the second horizontal plate and a push plate fixedly connected to the output end of the second electric push rod, and the top of the fifth guide rod is hingedly connected with an abutting plate, and the push plate can abut against the bottom of the abutting plate.

[0025] By adopting the above technical scheme, when the fifth guide rod needs to be driven to move upward, the second electric push rod is started first, at this time, the output end of the second electric push rod drives the push plate to move upward, the push plate to move upward drives the abutting plate to move upward, and the abutting plate to move upward can drive the fifth guide rod to move upward; in summary, the pushing assembly is arranged to facilitate the driving of the fifth guide rod to move upward.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. When the drain pipe needs to be dredged, the first electric push rod is started first, at this time, the output end of the first electric push rod drives the dredging frame to move downward, the dredging frame to move downward drives the dredging pipe to move downward, and then the driving assembly is used to drive the dredging pipe to rotate and move close to the drain pipe, so that the dredging pipe can rotate into the inlet of the drain pipe, thereby facilitating the dredging of the drain pipe; in summary, the dredging mechanism is arranged to facilitate the dredging of the drain pipe.

[0028] 2. When the dredging pipe needs to be driven to rotate and move, the second moving plate is driven to move downward by the transmission member, the second moving plate to move downward drives the connecting rod to move, the connecting rod to move drives the first moving plate to move, and the first moving plate to move can drive the dredging pipe to move; in addition, when the dredging pipe moves, the dredging pipe can rotate under the action of the helical block and the helical groove; in summary, the driving assembly is arranged to facilitate the driving of the dredging pipe to rotate and move.

[0029] 3. When the sludge at the inlet of the discharge pipe needs to be dispersed in order to make the dredging pipe enter the discharge pipe, the moving seat is first driven to move upward by the driving assembly, the first rotating shaft is driven to move upward by the upward movement of the moving seat, and the rotating rod is driven to move upward by the upward movement of the first rotating shaft, so that the rotating rod can avoid blocking the dredging pipe, then the first rotating shaft is driven to rotate by the driving assembly, the rotating rod is driven to rotate by the rotation of the first rotating shaft, and the dispersing rod is driven to rotate by the rotation of the rotating rod, so that the sludge at the inlet of the discharge pipe can be dispersed in order to make the dredging pipe enter the discharge pipe; in summary, the dispersing mechanism is arranged, which facilitates the dispersion of the sludge at the inlet of the discharge pipe in order to make the dredging pipe enter the discharge pipe. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0031] Figure 2 is a schematic diagram of the structure for displaying the internal structure of the sludge collection tank in the embodiment of the present application.

[0032] Figure 3 is a schematic diagram of the structure for displaying the dredging mechanism in the embodiment of the present application.

[0033] Figure 4 is a schematic diagram of the structure for displaying the connection between the second guide rod and the dredging pipe in the embodiment of the present application.

[0034] Figure 5 is a schematic diagram of the structure for displaying the dispersing mechanism in the embodiment of the present application.

[0035] The drawings show: 1, sludge collection tank; 11, discharge pipe; 2, sludge pump; 21, inlet pipe; 22, flow meter; 3, filter press; 4, dredging mechanism; 41, first electric push rod; 42, dredging frame; 43, first guide rod; 44, first moving plate; 45, dredging pipe; 451, helical groove; 5, driving assembly; 51, mounting frame; 52, second moving plate; 53, connecting rod; 54, second guide rod; 541, helical block; 55, driving motor; 56, lead screw; 57, third guide rod; 58, fourth guide rod; 59, first cross plate; 6, dispersing mechanism; 61, second cross plate; 62, fifth guide rod; 621, support ring; 63, moving seat; 64, first rotating shaft; 65, first support spring; 66, rotating rod; 67, dispersing rod; 7, driving and moving assembly; 71, sixth guide rod; 72, third moving plate; 73, second support spring; 74, grooved wheel; 75, rope body; 76, driving plate; 8, driving and rotating assembly; 81, second rotating shaft; 82, first bevel gear; 83, second bevel gear; 84, spur gear; 85, rack; 9, pushing assembly; 91, second electric push rod; 92, push plate; 93, abutting plate. DETAILED DESCRIPTION

[0036] Embodiments of the present application are described below in detail, examples of which are shown in the accompanying drawings.

[0037] In the description of the present specification, the description of the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the described embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The embodiment of the present application discloses a filter press device for heavy metal wastewater treatment, referring to Figure 1 and Figure 2 , comprising a sludge collection tank 1, a discharge pipe 11, a sludge pump 2 and a filter press 3, the outlet of the sludge pump 2 is communicated with an inlet pipe 21, the end of the inlet pipe 21 away from the sludge pump 2 is communicated with the filter press 3, a flow meter 22 is installed on the inlet pipe 21, the flow meter 22 is arranged to facilitate observation of whether the discharge pipe 11 is blocked, and a dredging mechanism 4 for dredging the inlet of the discharge pipe 11 is installed on the sludge collection tank 1.

[0039] Referring to Figure 2 and Figure 3 , the dredging mechanism 4 comprises a first electric push rod 41 vertically installed on the side wall of the sludge collection tank 1, a dredging frame 42 fixedly connected to the output end of the first electric push rod 41, a first guide rod 43 penetrating through and slidingly connected to the dredging frame 42 in the horizontal direction, and a first moving plate 44 fixedly connected to the end of the first guide rod 43 away from the dredging frame 42; a dredging pipe 45 is horizontally rotatably connected to the first moving plate 44 through a bearing, the end of the dredging pipe 45 close to the discharge pipe 11 is closed and provided with a sharp part, and a driving assembly 5 for driving the dredging pipe 45 to rotate and move towards the discharge pipe 11 is installed on the dredging frame 42. When it is necessary to dredge the discharge pipe 11, the first electric push rod 41 is started first, at this time the output end of the first electric push rod 41 drives the dredging frame 42 to move downward, the dredging frame 42 moves downward to drive the dredging pipe 45 to move downward, and then the driving assembly 5 drives the dredging pipe 45 to rotate and move towards the discharge pipe 11, so that the dredging pipe 45 can rotate into the inlet of the discharge pipe 11, thereby dredging the discharge pipe 11. In summary, the dredging mechanism 4 is arranged to facilitate dredging of the discharge pipe 11.

[0040] Referring to Figures 2-4The driving assembly 5 comprises a mounting frame 51 mounted on one side of the dredging frame 42, a second moving plate 52 vertically slidingly connected to the mounting frame 51, and a transmission member mounted on the mounting frame 51 for driving the second moving plate 52 to move. The second moving plate 52 is hingedly connected with the first moving plate 44, one side of the dredging frame 42 is fixedly connected with a second guide rod 54, the dredging pipe 45 is sleeved on the second guide rod 54, a plurality of spiral blocks 541 are fixedly connected to the side wall of the second guide rod 54 in sequence in the circumferential direction, a plurality of spiral grooves 451 are sequentially formed in the inner wall of the dredging pipe 45 in the circumferential direction, and the plurality of spiral blocks 541 and the plurality of spiral grooves 451 are one-to-one corresponding and matched. When it is necessary to drive the dredging pipe 45 to rotate and move, the second moving plate 52 is first driven to move downward by the transmission member, the second moving plate 52 is driven to move downward to drive the connecting rod 53 to move, the connecting rod 53 is driven to move to drive the first moving plate 44 to move, and the first moving plate 44 is driven to move to drive the dredging pipe 45 to move. In addition, when the dredging pipe 45 moves, the dredging pipe 45 is driven to rotate under the action of the spiral blocks 541 and the spiral grooves 451. In summary, the driving assembly 5 is convenient for driving the dredging pipe 45 to rotate and move.

[0041] With reference to Figure 2 and Figure 3 The transmission member comprises a driving motor 55 vertically mounted on the top of the mounting frame 51, a lead screw 56 vertically fixedly connected to the output shaft of the driving motor 55, and a third guide rod 57 vertically fixedly connected to the mounting frame 51. The second moving plate 52 is threadedly connected to the lead screw 56, the second moving plate 52 is vertically slidingly connected to the third guide rod 57, and the third guide rod 57 penetrates through the second moving plate 52. When it is necessary to drive the second moving plate 52 to move, the driving motor 55 is first started, the output shaft of the driving motor 55 drives the lead screw 56 to rotate at this time, and the lead screw 56 is driven to move. In summary, the driving assembly 5 is convenient for driving the second moving plate 52 to move.

[0042] With reference to Figure 2 and Figure 3 The top of the dredging frame 42 is fixedly connected with a fourth guide rod 58, the top of the sludge collecting tank 1 is horizontally fixedly connected with a first horizontal plate 59, and the fourth guide rod 58 penetrates through the first horizontal plate 59 in the vertical direction and is slidingly connected thereto. The fourth guide rod 58 is provided to guide the dredging frame 42, thereby improving the stability of the dredging frame 42.

[0043] With reference to Figure 2 and Figure 5The dispersing mechanism 6 is arranged at the inlet of the discharge pipe 11 in the sludge collecting tank 1, and comprises a second horizontal plate 61 fixed horizontally on the top of the sludge collecting tank 1, a fifth guide rod 62 penetrating vertically and slidingly connected to the second horizontal plate 61, a moving base 63 fixed to the bottom of the fifth guide rod 62, a driving and moving assembly 7 arranged on the second horizontal plate 61 and used for driving the moving base 63 to move upward, a first rotating shaft 64 rotatingly connected to the moving base 63 through a bearing, and a plurality of dispersing rods 67 fixed to the side wall of a rotating rod 66 fixed to the bottom of the first rotating shaft 64. When it is needed to disperse the sludge at the inlet of the discharge pipe 11 so as to make the dredging pipe 45 enter the discharge pipe 11, the moving base 63 is first driven by the driving and moving assembly 7 to move upward, the moving base 63 moves upward to drive the first rotating shaft 64 to move upward, and the first rotating shaft 64 moves upward to drive the rotating rod 66 to move upward, so that the rotating rod 66 is avoided to block the dredging pipe 45, then the first rotating shaft 64 is driven by the driving and rotating assembly 8 to rotate, the first rotating shaft 64 rotates to drive the rotating rod 66 to rotate, and the rotating rod 66 rotates to drive the dispersing rods 67 to rotate, so that the sludge at the inlet of the discharge pipe 11 is dispersed to make the dredging pipe 45 enter the discharge pipe 11. In summary, the dispersing mechanism 6 is arranged to facilitate the dispersion of the sludge at the inlet of the discharge pipe 11 so as to make the dredging pipe 45 enter the discharge pipe 11.

[0044] With reference to Figure 2 and Figure 5 The driving and moving assembly 7 comprises a sixth guide rod 71 penetrating vertically and slidingly connected to the second horizontal plate 61, a third moving plate 72 fixed to the bottom of the sixth guide rod 71, a second supporting spring 73 fixed vertically between the third moving plate 72 and the second horizontal plate 61, and a grooved wheel 74 arranged on the bottom of the second horizontal plate 61. A rope 75 is embedded on the grooved wheel 74, and the two ends of the rope 75 are fixed to the moving base 63 and the third moving plate 72 respectively. A driving plate 76 is horizontally bolted to the top of the second moving plate 52, and the bottom of the driving plate 76 can abut against the top of the third moving plate 72. When the second moving plate 52 moves downward, the driving plate 76 moves downward, the driving plate 76 drives the third moving plate 72 to move downward, and then the third moving plate 72 drives the moving base 63 to move upward under the action of the rope 75. In summary, the driving and moving assembly 7 is arranged to facilitate the driving of the moving base 63 to move upward.

[0045] With reference to Figure 2 and Figure 5The driving and rotating assembly 8 comprises a second rotating shaft 81 horizontally connected to the moving seat 63 through a bearing, a first bevel gear 82 fixed to the side wall of the second rotating shaft 81, and a second bevel gear 83 fixed to the first rotating shaft 64; the first bevel gear 82 is engaged with the second bevel gear 83; the side wall of the second rotating shaft 81 is fixed with a spur gear 84, the spur gear 84 is engaged with a rack 85 which is vertically fixed to the inner wall of one side of the sludge collecting tank 1. When the moving seat 63 moves upward, the spur gear 84 moves upward, then the spur gear 84 rotates under the action of the rack 85, the rotation of the spur gear 84 drives the second rotating shaft 81 to rotate, the rotation of the second rotating shaft 81 drives the first bevel gear 82 to rotate, the rotation of the first bevel gear 82 drives the second bevel gear 83 to rotate, and the rotation of the second bevel gear 83 drives the first rotating shaft 64 to rotate; in summary, the driving and rotating assembly 8 is convenient for driving the first rotating shaft 64 to rotate.

[0046] With reference to Figure 2 and Figure 5 , the fifth guide rod 62 is threadedly connected with a supporting ring 621; the supporting ring 621 is convenient for supporting the fifth guide rod 62, and further convenient for supporting the moving seat 63.

[0047] With reference to Figure 2 and Figure 5 , the second horizontal plate 61 is provided with a pushing assembly 9 for driving the fifth guide rod 62 to move upward; the pushing assembly 9 is convenient for driving the fifth guide rod 62 to reset after the dredging frame 42 is reset, the fifth guide rod 62 resets the moving seat 63, and the moving seat 63 resets the rotating rod 66, so as to be convenient for driving the rotating rod 66 to reset; in summary, the pushing assembly 9 is convenient for driving the rotating rod 66 to reset.

[0048] With reference to Figure 2 and Figure 5 Figure 2 Figure 5 , the pushing assembly 9 comprises a second electric push rod 91 vertically installed on the top of the second horizontal plate 61, and a push plate 92 fixed to the output end of the second electric push rod 91; the top of the fifth guide rod 62 is bolted with an abutting plate 93, and the push plate 92 can abut against the bottom of the abutting plate 93. When it is needed to drive the fifth guide rod 62 to move upward, the second electric push rod 91 is started first, at this time the output end of the second electric push rod 91 drives the push plate 92 to move upward, the push plate 92 drives the abutting plate 93 to move upward, and the abutting plate 93 drives the fifth guide rod 62 to move upward; in summary, the pushing assembly 9 is convenient for driving the fifth guide rod 62 to move upward.

[0049] Although the embodiments of the present application have been shown and described above, it should be understood by those skilled in the art that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A filter press device for heavy metal wastewater treatment, comprising a sludge collection tank (1), a discharge pipe (11), a sludge pump (2), and a filter press (3), characterized in that, The sludge collecting tank (1) is provided with a dredging mechanism (4) for dredging the inlet of the discharge pipe (11), the dredging mechanism (4) comprises a first electric push rod (41) mounted on the side wall of the sludge collecting tank (1), a dredging frame (42) fixedly connected to the output end of the first electric push rod (41), a first guide rod (43) slidably connected to the dredging frame (42), and a first moving plate (44) fixedly connected to the end of the first guide rod (43) away from the dredging frame (42); the first moving plate (44) is rotatably connected with a dredging pipe (45), and the dredging frame (42) is provided with a driving assembly (5) for driving the dredging pipe (45) to rotate and move towards the discharge pipe (11); The driving assembly (5) comprises a mounting frame (51) mounted on one side of the dredging frame (42), a second moving plate (52) slidably connected to the mounting frame (51) in the vertical direction, and a transmission member mounted on the mounting frame (51) for driving the second moving plate (52) to move; the second moving plate (52) and the first moving plate (44) are hingedly connected with a connecting rod (53), one side of the dredging frame (42) is fixedly connected with a second guide rod (54), the dredging pipe (45) is sleeved on the second guide rod (54), the side wall of the second guide rod (54) is fixedly connected with a plurality of spiral blocks (541) in the circumferential direction, and the inner wall of the dredging pipe (45) is provided with a plurality of spiral grooves (451) in the circumferential direction; a plurality of spiral blocks (541) and a plurality of spiral grooves (451) are matched one by one; The inlet of the discharge pipe (11) is provided with a dispersing mechanism (6) in the sludge collecting tank (1), the dispersing mechanism (6) comprises a second horizontal plate (61) fixedly connected to the top of the sludge collecting tank (1), a fifth guide rod (62) slidably connected to the second horizontal plate (61), a moving seat (63) fixedly connected to the bottom of the fifth guide rod (62), a driving assembly (7) mounted on the second horizontal plate (61) for driving the moving seat (63) to move upwards, a first rotating shaft (64) rotatably connected to the moving seat (63); a first supporting spring (65) is arranged between the moving seat (63) and the second horizontal plate (61), a driving assembly (8) is mounted on the moving seat (63) for driving the first rotating shaft (64) to rotate, a rotating rod (66) is fixedly connected to the bottom of the first rotating shaft (64), and a plurality of dispersing rods (67) are fixedly connected to the side wall of the rotating rod (66); The driving displacement assembly (7) comprises a sixth guide rod (71) slidably connected to the second horizontal plate (61), a third moving plate (72) fixed to the bottom of the sixth guide rod (71), a second supporting spring (73) fixed between the third moving plate (72) and the second horizontal plate (61), and a groove wheel (74) installed at the bottom of the second horizontal plate (61); the groove wheel (74) is embedded with a rope body (75), and the two ends of the rope body (75) are fixed to the moving seat (63) and the third moving plate (72) respectively; the top of the second moving plate (52) is bolted with a driving plate (76), and the bottom of the driving plate (76) can abut against the top of the third moving plate (72). The driving rotation assembly (8) comprises a second rotating shaft (81) rotatably connected to the moving seat (63), a first bevel gear (82) fixed to the side wall of the second rotating shaft (81), and a second bevel gear (83) fixed to the first rotating shaft (64); the first bevel gear (82) is engaged with the second bevel gear (83); the side wall of the second rotating shaft (81) is fixed with a spur gear (84), the spur gear (84) is engaged with a rack (85), and the rack (85) is fixed to the inner wall of one side of the sludge collecting tank (1).

2. The filter press device for heavy metal wastewater treatment according to claim 1, characterized in that, The transmission member comprises a driving motor (55) installed at the top of the mounting frame (51), a lead screw (56) fixed to the output shaft of the driving motor (55), and a third guide rod (57) fixed to the mounting frame (51); the second moving plate (52) is threadedly connected to the lead screw (56), and the second moving plate (52) is slidably connected to the third guide rod (57).

3. The filter press device for heavy metal wastewater treatment according to claim 1, characterized in that, The top of the dredging frame (42) is fixed with a fourth guide rod (58), the top of the sludge collecting tank (1) is fixed with a first horizontal plate (59), and the fourth guide rod (58) is vertically slidably connected to the first horizontal plate (59).

4. The filter press device for heavy metal wastewater treatment according to claim 1, characterized in that, The fifth guide rod (62) is threadedly connected with a supporting ring (621).

5. The filter press device for heavy metal wastewater treatment according to claim 1, characterized in that, The second horizontal plate (61) is provided with a pushing assembly (9) for driving the fifth guide rod (62) to move upward.

6. The filter press according to claim 5, wherein The pushing assembly (9) comprises a second electric push rod (91) installed at the top of the second horizontal plate (61), and a push plate (92) fixed to the output end of the second electric push rod (91); the top of the fifth guide rod (62) is bolted with an abutting plate (93), and the push plate (92) can abut against the bottom of the abutting plate (93).

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