Screw extrusion dehydration reinforced transmission structure of filter press and filter press

Abstract

According to the screw extrusion dewatering reinforced transmission structure of the filter press and the filter press, a third rotating rod of a bent structure drives a screw blade to rotate, and meanwhile, a main convex block and an auxiliary convex block are matched to disturb sludge, so that the caking of the sludge can be reduced; sludge is moved to the other end from one end of the conveying pipe and the conveying filter belt of which the inner walls are bent in an arc shape for multiple times through the spiral blades, so that the extrusion force on the sludge can be enhanced, and the dewatering effect of the sludge is improved. The device is characterized in that the device is composed of a conveying pipe, a third rotating rod, a second supporting frame, a third rotating motor, a main driving belt wheel, an auxiliary driving belt wheel, a conveying belt, a conveying filter belt, a spiral blade, a main protruding block, an auxiliary protruding block and a water leakage opening, the conveying pipe is of a cylindrical structure with the two ends closed, and the height of the conveying pipe is gradually increased from one end to the other end; the second supporting frame is located above the other end of the conveying pipe, the second supporting frame is perpendicularly arranged on the side face of the other end of the conveying pipe, and the third rotating motor is arranged on the top face of the second supporting frame.

Description

Technical Field

[0001] The present invention discloses a filter press spiral extrusion dehydration enhanced transmission structure and a filter press, which relate to a transmission structure and a filter press for improving the dehydration effect of sludge, and belong to the technical field of sewage treatment, and particularly to a structure and a filter press in which a third rotating rod of a curved structure drives a spiral blade to rotate, and at the same time cooperates with a main protrusion block and an auxiliary protrusion block to disturb the sludge, thereby reducing the agglomeration of the sludge, and the spiral blades move the sludge from one end of a transmission pipe and a transmission filter belt whose inner walls are bent in multiple arcs to the other end, thereby enhancing the extrusion force on the sludge and improving the dehydration effect of the sludge. Background Art

[0002] In sewage treatment, filter press is usually used to separate solid and liquid and dehydrate sewage to reduce the water content of sludge. Its working principle is that after the concentrated sludge and a certain concentration of flocculant are fully mixed in static and dynamic mixers, the tiny solid particles in the sludge are aggregated into larger floccules, and free water is separated at the same time. The flocculated sludge is transported to the concentrated gravity dehydration filter belt. Under the action of gravity, the free water is separated to form stagnant sludge, which is then clamped between the upper and lower mesh belts. Under the action of extrusion and shear force from small to large in the wedge-shaped pre-pressure area, low-pressure area and high-pressure area, the sludge is gradually squeezed to achieve the maximum separation of mud and water, and finally the filter cake is discharged. However, the flocculant in the traditional filter press is added into the mixer through the dosing device. When the flocculant is added, it only exists in a certain position of the mixer and is added unevenly. Since the sewage continuously flows into the mixer at a certain flow rate, the sewage and the flocculant cannot fully contact each other before entering the next link, so that part of the sewage cannot be flocculated and flocculent clumps cannot be produced, resulting in low sewage treatment efficiency and poor treatment effect; and when the flocculated sludge moves with the filter belt, a lot of sludge will coagulate and remain on the filter belt, resulting in part of the sludge cannot enter the next link from the filter belt, and is squeezed into a mud cake. There is a lot of residual sludge on the filter belt, which is difficult to clean, affecting the dehydration effect of the filter belt, resulting in low sewage treatment efficiency and poor treatment effect.

[0003] Announcement No. CN107473563A discloses a belt filter press, which mainly includes a frame, a flocculation zone, a concentration and dehydration zone, a gravity dehydration zone and a pressing and dehydration zone, wherein the flocculation zone is provided with a flocculation agitator; the concentration and dehydration zone includes a plurality of horizontally arranged transmission rollers and a concentration filter belt arranged on the transmission rollers; the gravity dehydration zone is located below the concentration and dehydration zone, and the gravity dehydration zone includes a plurality of arc-shaped clamping rollers, an upper filter belt and a lower filter belt fixed on the frame and arranged obliquely; the pressing and dehydration zone includes a plurality of vertically staggered pressing rollers and pressing filter belts, and a demuding roller is also provided at the rear of the pressing roller, and a mud scraper is connected to the demuding roller. The flocculation zone of the above-mentioned filter press is equipped with a flocculation mixer, which can promote the full contact between sewage and flocculant and produce more floccules. However, when the flocculated sludge in the above-mentioned filter press moves with the upper filter belt and the lower filter belt, a lot of sludge will solidify and remain on the upper filter belt and the lower filter belt, resulting in part of the sludge being unable to enter the next link from the upper filter belt and the lower filter belt and being squeezed into mud cakes. There is a lot of sludge remaining on the upper filter belt and the lower filter belt, which is difficult to clean, affecting the subsequent gravity dehydration effect, thereby resulting in low sewage treatment efficiency and poor treatment effect.

[0004] In order to improve the above problems, the applicant filed a Chinese invention patent application entitled "A filter press", in which the main driving pulley is driven to rotate by the third rotating motor, the main driving pulley drives the slave driving pulley to rotate, the slave driving pulley drives the third rotating rod to rotate, the third rotating rod drives the spiral blade to rotate, the spiral blade pushes the flocculated sludge from one end of the transmission pipe to the other end, and the water in the sludge enters the drainage channel from the mesh of the transmission filter belt under the action of gravity and the extrusion of the spiral blade, and is discharged from the drainage channel. The third rotating rod in the above filter press is a vertical and smooth structure. When the spiral blade is driven to rotate, it will generate vortexes on the sludge, causing the sludge to easily agglomerate. When the agglomerated sludge enters the upper and lower filter belts of the filter press box, it is easy to cause the upper and lower filter belts to be blocked, affecting the re-dehydration treatment of the sludge by the upper and lower filter belts; and the inner wall of the transmission pipe and the transmission filter belt are both smooth and flat structures. When the spiral blade pushes the sludge along the inner wall of the transmission pipe and the transmission filter belt, the extrusion force on the sludge is small, resulting in poor first dehydration effect of the sludge. Summary of the invention

[0005] In order to improve the above situation, the present invention provides a filter press spiral extrusion dehydration enhanced transmission structure and a filter press, which provide a third rotating rod with a curved structure to drive the spiral blade to rotate, and at the same time cooperate with the main protrusion block and the auxiliary protrusion block to disturb the sludge, thereby reducing the agglomeration of sludge. The spiral blades can move the sludge from one end of the transmission tube and the transmission filter belt whose inner walls are bent in multiple arcs to the other end, thereby enhancing the extrusion force on the sludge and improving the dehydration effect of the sludge. The transmission structure and filter press.

[0006] The invention discloses a filter press spiral extrusion dehydration enhanced transmission structure and a filter press as follows: The filter press spiral extrusion dehydration enhanced transmission structure of the invention comprises a transmission pipe, a third rotating rod, a second supporting frame, a third rotating motor, a main driving pulley, a slave driving pulley, a transmission belt, a transmission filter belt, a spiral blade, a main protrusion block, a secondary protrusion block and a water leakage port. The transmission tube is a cylindrical structure with both ends closed. The height of the transmission tube gradually increases from one end to the other end. The second support frame is located above the other end of the transmission tube, The second support frame is vertically placed on the side of the other end of the transmission tube. The third rotating motor is placed on the top surface of the second supporting frame, The axle of the main driving pulley is connected to the motor shaft of the third rotating motor, The slave drive pulley is located directly below the main drive pulley and outside the other end of the transmission tube. The main driving pulley and the slave driving pulley are connected via a transmission belt. One end of the third rotating rod is connected to the axle of the slave driving pulley. The other end of the third rotating rod passes through the middle of the other end of the transmission tube, a through hole is opened, and is placed in the middle of one end of the transmission tube through a bearing. The bottom of the side of the transmission pipe is a transmission filter belt structure. The inner wall of the transmission pipe is a structure with multiple arc bends from one end to the other. Preferably, the density of the arc-shaped curved portion gradually increases from one end to the other end of the transmission tube. The transmission filter belt is a structure that is bent in multiple arcs from one end to the other end. Preferably, the density of the arc-shaped curved portion gradually increases from one end to the other end of the transmission filter belt. The third rotating rod is a structure that bulges multiple times from one end to the other end in a direction away from the center, the angle between the center extension lines of the two ends of the bulge of the third rotating rod is less than 90 degrees, and the other parts of the third rotating rod except the bulge are multiple recessed parts. Preferably, the raised portion is an arc-shaped structure. Preferably, the inner diameter of the third rotating rod gradually decreases from the middle to both ends. Preferably, the inner diameter of one end of the third rotating rod is larger than the inner diameter of the other end. Preferably, the plurality of recessed portions are hollow structures. A spiral blade is disposed on the side of the third rotating rod, each blade on the spiral blade corresponds to a plurality of protrusions of the third rotating rod one by one, each blade on the spiral blade is disposed correspondingly on a protrusion of the third rotating rod, and an angle between a plane where each blade on the spiral blade is located and a center line of a corresponding protrusion of the third rotating rod is less than 90 degrees. The edge of the spiral blade contacts the arc-shaped curved portion of the inner wall of the transmission tube and the arc-shaped curved portion of the transmission filter belt. A main protrusion is disposed on the concave portion of the third rotating rod. Preferably, there are a plurality of main protruding blocks, and the plurality of main protruding blocks are arranged equidistantly along the circumference of the recessed portion, and the plurality of main protruding blocks have different sizes. Preferably, the main protruding block is a trapezoidal structure, the width of the main protruding block gradually increases from one side connected to the side of the third rotating rod to the other side, the other side of the main protruding block is provided with a plurality of vertical grooves, the plurality of vertical grooves are arranged equidistantly along the width direction of the main protruding block, the width of the vertical grooves gradually increases from the bottom of the groove to the groove mouth, and the depths of two adjacent vertical grooves are different; A plurality of auxiliary protrusions are disposed on the protrusion of the third rotating rod, and the size of the auxiliary protrusions is smaller than the size of the main protrusions. Preferably, the plurality of auxiliary protrusion blocks are arranged equidistantly along the circumference of the protrusion portion, and the plurality of auxiliary protrusion blocks have different sizes. Preferably, the secondary protrusion block is a hemispherical structure, and a plurality of arc-shaped spoiler grooves are formed on the surface of the secondary protrusion block. The plurality of arc-shaped spoiler grooves are staggered and equidistantly arranged along the surface of the secondary protrusion block. The width of the arc-shaped spoiler grooves gradually decreases from one end to the other end, and the depth of the arc-shaped spoiler grooves gradually increases from the bottom of the groove to the groove mouth. Preferably, a plurality of scraping teeth are evenly arranged on the surface of the main protrusion block and the auxiliary protrusion block, and the scraping teeth are triangular prism structures with edges facing outwards. The transmission filter belt is provided with a water leakage port. Preferably, there are multiple groups of water leakage openings, and the multiple groups of water leakage openings are staggered along the length direction of the transmission filter belt. There are multiple water leakage openings in each group, and the multiple water leakage openings are non-equidistantly arranged along the width direction of the transmission filter belt. Preferably, the density of the water leakage openings at the center of the transmission filter belt is greater than the density of the water leakage openings at both sides of the transmission filter belt. Preferably, the water leakage port is a structure with a large inlet and a small outlet, and the outlet is inclined in the drainage direction. Preferably, the inner wall of the water leakage port is an uneven structure; Furthermore, the third rotating rod is formed by splicing a plurality of short spliced ​​rods end to end, a connecting groove is formed at one end of the short spliced ​​rod, a connecting block corresponding to the connecting groove is disposed at the other end of the short spliced ​​rod, the end to end splicing of the plurality of short spliced ​​rods corresponds one to one to the plurality of recessed portions of the third rotating rod, and the shape of each short spliced ​​rod corresponds to the shape of each section of the third rotating rod; Preferably, the connecting groove is an arc-shaped groove, the connecting block is an arc-shaped block, and a rubber pad is built into the connecting groove; Furthermore, the spiral blade is provided with a water filter port; Preferably, there are multiple groups of water filter ports, and the multiple groups of water filter ports are staggered from one end to the other end of the spiral blade. There are multiple water filter ports in each group, and the multiple water filter ports are arranged at non-equidistant intervals along the width direction of the spiral blade. Preferably, the density of the water filter outlet gradually increases from one end to the other end of the spiral blade.

[0007] The present invention also relates to a filter press, which is composed of a flocculation component, a transmission component, a drainage component and a filter press component. The flocculation assembly is composed of a first support frame, a flocculation mixing cylinder, a first rotating motor, a dosing port, a sewage inlet, a first rotating rod, a second rotating rod, a stirring blade, a second rotating motor, a motor placement shell, a supporting base and a water outlet. The bottom surface of the flocculation mixing cylinder is placed on the top surface of the first support frame. A first rotating motor is disposed in the middle of the top surface of the flocculation mixing cylinder. The top surface of the flocculation mixing cylinder is provided with a drug addition port and a sewage inlet. The first rotating rod is placed in the flocculation mixing cylinder. One end of the first rotating rod is connected to the motor shaft of the first rotating motor through a through hole opened in the middle of the top surface of the flocculation mixing cylinder. The support base is placed in the middle of the inner bottom surface of the flocculation mixing cylinder. The motor housing is placed in the through groove on the top surface of the support base through the bearing. Preferably, the motor housing is a cylindrical structure. The other end of the first rotating rod is placed in the middle of the motor placement shell. The second rotating motor is placed on the inner bottom surface of the motor placement shell, Preferably, there are a plurality of the second rotating motors, and the plurality of the second rotating motors are arranged equidistantly along the circumferential direction of the bottom surface of the motor placement housing. One end of the second rotating rod passes through a through hole opened on the top surface of the motor placement shell and is connected to the motor shaft of the second rotating motor accordingly. The other end of the second rotating rod is placed on the bottom surface of the stirring blade. Preferably, the stirring blade is an arc-shaped structure. Preferably, the plurality of stirring blades are driven by the plurality of the second rotating motors to rotate in different directions. The bottom surface of the flocculation mixing cylinder is provided with a water outlet hole. The transmission assembly is composed of a second support frame, a third rotating motor, a main driving pulley, a slave driving pulley, a transmission belt, a transmission pipe, a sewage discharge channel, a transmission filter belt, a first mud conveying channel, a third rotating rod and a spiral blade. The transmission tube is a cylindrical structure with both ends closed. One end of the sewage discharge channel is placed on the bottom surface of the first support frame, and is connected to the water outlet through a through hole opened on the first support frame. The angle between the sewage discharge channel and the flocculation mixing cylinder is greater than 90 degrees. The sewage discharge channel is located above one end of the transmission pipe. The other end of the sewage discharge channel is vertically placed on the side of one end of the transmission pipe and is connected to the transmission pipe. The height of the transmission tube gradually increases from one end to the other end. The second support frame is located above the other end of the transmission tube, The second support frame is vertically placed on the side of the other end of the transmission tube. The third rotating motor is placed on the top surface of the second supporting frame, The axle of the main driving pulley is connected to the motor shaft of the third rotating motor, The slave drive pulley is located directly below the main drive pulley and outside the other end of the transmission tube. The main driving pulley and the slave driving pulley are connected via a transmission belt. One end of the third rotating rod is connected to the axle of the slave driving pulley. The other end of the third rotating rod passes through the middle of the other end of the transmission tube, a through hole is opened, and is placed in the middle of one end of the transmission tube through a bearing. The side of the third rotating rod is provided with a spiral blade. The edge of the spiral blade contacts the inner wall of the transmission pipe. The bottom of the side of the transmission pipe is formed by a transmission filter belt. The first mud conveying channel is located below the other end of the transmission pipe. One end of the first mud conveying channel is vertically placed on the side of the other end of the transmission pipe and is connected to the transmission pipe. The drainage assembly is composed of a support leg, a support plate and a drainage channel. One end of the support leg is placed on the side of the transmission pipe. Preferably, there are multiple groups of support legs, and the multiple groups of support legs are symmetrically placed on the side of the transmission tube. There are multiple support legs in each group, and the multiple support legs are equidistantly arranged along the axial direction of the transmission tube. The heights of the multiple support legs gradually increase along the axial direction of the transmission tube. Preferably, the other end of the supporting leg is a tripod structure. Preferably, a plurality of anti-slip protrusions are evenly arranged on the bottom surface of the supporting legs. A support plate is disposed between the inner sides of the two symmetrical support legs, and the top surface of the support plate is an arc-shaped structure. The drainage channel is located directly below the transmission filter belt. The drainage channel is an arc-shaped structure with an opening at the upper end. The length of the drainage channel is equal to the length of the transmission filter belt. Preferably, one end of the drainage channel extends to one end of the transmission filter belt and is bent at an obtuse angle and placed on the ground, and the other end of the drainage channel extends beyond the other end of the transmission filter belt. The drainage channel is placed on the support plate. The filter press assembly is composed of a filter press box, a second mud conveying channel, a drainage pipe, a mud collecting box, a main upper pressure roller, a secondary upper pressure roller, a main lower pressure roller, a secondary lower pressure roller, an upper filter belt and a lower filter belt. The filter press box is a square structure with an opening on the right side. One end of the second mud conveying channel is placed in the middle of one end of the top surface of the filter press box and is connected to the filter press box. The left side of the second mud conveying channel is flush with the left side of the filter press box. The other end of the first mud conveying channel is disposed at the other end of the second mud conveying channel and is connected to the other end of the second mud conveying channel. The rear side of the filter press box is provided with a fourth rotating motor and a fifth rotating motor. A main upper pressure roller and a plurality of secondary upper pressure rollers are arranged on the upper end of the rear inner side surface of the filter press box. A main lower pressure roller and a plurality of secondary lower pressure rollers are arranged at the lower end of the rear inner side surface of the filter press box. One end of the main upper pressure roller is connected to the motor shaft of the fourth rotating motor through a through hole opened on the rear side of the filter press box. The other ends of the main upper pressure rollers are respectively placed on the front inner side of the filter press box through bearings. The two ends of the plurality of upper pressure rollers are respectively placed on the front and rear inner sides of the filter press box through bearings. The leftmost side of the upper pressure roller is close to the right side of the second mud conveying channel, One end of the main lower pressure roller is connected to the motor shaft of the fifth rotating motor through a through hole opened on the rear side of the filter press box. The other ends of the main lower pressure rollers are respectively placed on the front inner side of the filter press box through bearings. The two ends of the multiple lower pressure rollers are respectively placed on the front and rear inner sides of the filter press box through bearings. The leftmost side of the filter press box is close to the left inner side of the lower pressure roller. The main upper pressure roller and the plurality of the secondary upper pressure rollers are connected via an upper filter belt, and the main lower pressure roller and the plurality of the secondary lower pressure rollers are connected via a lower filter belt. The height of the upper filter belt gradually decreases along the direction of sludge transportation, and the height of the lower filter belt gradually increases along the direction of sludge transportation. Preferably, the width of the upper filter belt is equal to the width of the lower filter belt. One end of the drain pipe is placed at the bottom of the left side of the filter press box and is connected to the filter press box. The mud collecting box is a structure with an opening at the top. The mud collecting box is located outside the right side of the filter press box, and the width of the mud collecting box is greater than the width of the lower filter belt. Preferably, one side of the mud collecting box is an openable and closable structure. Furthermore, a plurality of flow-disturbing protrusions are evenly arranged on the stirring blade; Preferably, the spoiler protrusion is a semicircular structure; Furthermore, the sides of the main upper pressure roller, the secondary upper pressure roller, the main lower pressure roller and the secondary lower pressure roller are uniformly provided with a plurality of rubber teeth; Preferably, the rubber teeth are triangular prism structures with the edges facing outwards. Beneficial Effects

[0008] 1. The third rotating rod of the curved structure drives the spiral blade to rotate, and cooperates with the main protrusion block and the auxiliary protrusion block to disturb the sludge, which can reduce the agglomeration of the sludge and reduce the blockage caused by the agglomerated sludge entering the upper and lower filter belts of the filter press box.

[0009] 2. The third rotating rod of the curved structure drives the spiral blade to rotate, and the spiral blade moves the sludge from one end of the transmission pipe and the transmission filter belt whose inner wall is curved in multiple arcs to the other end, which can enhance the squeezing force on the sludge and improve the dehydration effect of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A three-dimensional structural diagram of a filter press of the present invention; Figure 2 It is a structural schematic diagram of a filter press of the present invention; Figure 3This is a three-dimensional structural diagram of a filter press of the present invention, which only shows the internal structure of the flocculation mixing cylinder; Figure 4 It is a three-dimensional structural diagram of a filter press according to embodiment 2 of the present invention; Figure 5 This is a schematic structural diagram of a filter press according to Embodiment 3 of the present invention; Figure 6 It is a three-dimensional structural diagram of a spiral extrusion dehydration enhanced transmission structure of a filter press according to the present invention; Figure 7 It is a three-dimensional structural diagram of Embodiment 2 of a spiral extrusion dehydration enhanced transmission structure of a filter press according to the present invention; Figure 8 It is a three-dimensional structural diagram of Example 3 of a spiral extrusion dehydration enhanced transmission structure of a filter press according to the present invention. Attached photos

[0011] The components include: a first support frame (1), a flocculation mixing drum (2), a first rotating motor (3), a dosing port (4), a sewage inlet (5), a transmission pipe (6), a third rotating motor (7), a main driving pulley (8), a transmission belt (9), a slave driving pulley (10), a first mud conveying channel (11), a second mud conveying channel (12), a filter press box (13), a main upper pressure roller (14), a main lower pressure roller (15), a mud collecting box (16), a second support frame (17), a supporting leg (18), a supporting plate (19), a drainage channel (20), a transmission filter belt (21), a sewage discharge channel (2 ... 2), a first rotating rod (23), a second rotating rod (24), a stirring blade (25), a motor placement shell (26), a supporting base (27), a water outlet (28), a second rotating motor (29), a third rotating rod (30), a spiral blade (31), a drainage pipe (32), an upper filter belt (33), a lower filter belt (34), a lower pressure roller (35), an upper pressure roller (36), a flow-disturbing protrusion (37), a rubber tooth (38), a main protrusion block (39), a secondary protrusion block (40), a water leakage port (41), a connecting block (42), a spliced ​​short rod (43), and a water filter port (44). DETAILED DESCRIPTION Example 1

[0012] The present invention discloses a filter press spiral extrusion dehydration enhanced transmission structure, which comprises a transmission pipe (6), a third rotating rod (30), a second support frame (17), a third rotating motor (7), a main driving pulley (8), a slave driving pulley (10), a transmission belt (9), a transmission filter belt (21), spiral blades (31), a main protrusion block (39), a secondary protrusion block (40) and a water leakage port (41). The transmission tube (6) is a cylindrical structure with both ends closed. The height of the transmission pipe (6) gradually increases from one end to the other end. The second support frame (17) is located above the other end of the transmission pipe (6). The second support frame (17) is vertically placed on the side of the other end of the transmission pipe (6). The third rotating motor (7) is placed on the top surface of the second supporting frame (17). The wheel shaft of the main driving pulley (8) is connected to the motor shaft of the third rotating motor (7). The slave drive pulley (10) is located directly below the master drive pulley (8) and outside the other end of the transmission tube (6). The main drive pulley (8) and the slave drive pulley (10) are connected via a transmission belt (9). One end of the third rotating rod (30) is connected to the axle of the secondary driving pulley (10). The other end of the third rotating rod (30) passes through a through hole in the middle of the other end of the transmission tube (6) and is placed in the middle of one end of the transmission tube (6) through a bearing. The bottom of the side of the transmission pipe (6) is a transmission filter belt (21) structure. The inner wall of the transmission pipe (6) is a structure that is curved multiple times from one end to the other end. Preferably, the density of the arc-shaped curved portion gradually increases from one end to the other end of the transmission tube (6). The transmission filter belt (21) is a structure that is bent in multiple arc shapes from one end to the other end. Preferably, the density of the arc-shaped curved portion gradually increases from one end to the other end of the transmission filter belt (21). The third rotating rod (30) is a structure that protrudes multiple times from one end to the other end in a direction away from the center, the angle between the center extension lines of the two ends of the protruding portion of the third rotating rod (30) is less than 90 degrees, and the other parts of the third rotating rod (30) except the protruding portion are multiple recessed portions. Preferably, the raised portion is an arc-shaped structure. Preferably, the inner diameter of the third rotating rod (30) gradually decreases from the middle to both ends. Preferably, the inner diameter of one end of the third rotating rod (30) is larger than the inner diameter of the other end. Preferably, the plurality of recessed portions are hollow structures. A spiral blade (31) is disposed on the side of the third rotating rod (30), each blade on the spiral blade (31) corresponds to a plurality of raised portions of the third rotating rod (30) one by one, each blade on the spiral blade (31) is disposed correspondingly to a raised portion of the third rotating rod (30), and an angle between a plane on which each blade on the spiral blade (31) is located and a center line of a corresponding raised portion of the third rotating rod (30) is less than 90 degrees. The edge of the spiral blade (31) is in contact with the arc-shaped curved portion of the inner wall of the transmission pipe (6) and the arc-shaped curved portion of the transmission filter belt (21). A main protruding block (39) is disposed on the recessed portion of the third rotating rod (30). Preferably, there are a plurality of main protruding blocks (39), the plurality of main protruding blocks (39) are arranged equidistantly along the circumference of the recessed portion, and the plurality of main protruding blocks (39) have different sizes. Preferably, the main protruding block (39) is a trapezoidal structure, the width of the main protruding block (39) gradually increases from one side connected to the side of the third rotating rod (30) to the other side, the other side of the main protruding block (39) is provided with a plurality of vertical grooves, the plurality of vertical grooves are arranged equidistantly along the width direction of the main protruding block (39), the width of the vertical grooves gradually increases from the bottom of the groove to the groove mouth, and the depths of two adjacent vertical grooves are different; A secondary protrusion block (40) is disposed on the protrusion of the third rotating rod (30), and the size of the secondary protrusion block (40) is smaller than the size of the main protrusion block (39). Preferably, there are a plurality of auxiliary protrusion blocks (40), the plurality of auxiliary protrusion blocks (40) are arranged equidistantly along the circumference of the protrusion portion, and the plurality of auxiliary protrusion blocks (40) have different sizes. Preferably, the secondary protrusion block (40) is a hemispherical structure, and a plurality of arc-shaped spoiler grooves are formed on the surface of the secondary protrusion block (40), and the plurality of arc-shaped spoiler grooves are arranged in a staggered and equidistant manner along the surface of the secondary protrusion block (40), and the width of the arc-shaped spoiler grooves gradually decreases from one end to the other end, and the depth of the arc-shaped spoiler grooves gradually increases from the bottom of the groove to the groove mouth. Preferably, a plurality of scraping teeth are evenly arranged on the surface of the main protruding block (39) and the auxiliary protruding block (40), and the scraping teeth are triangular prism structures with the edges facing outwards. The transmission filter belt (21) is provided with a water leakage opening (41). Preferably, there are multiple groups of water leakage openings (41), and the multiple groups of water leakage openings (41) are arranged in a staggered manner along the length direction of the transmission filter belt (21). There are multiple water leakage openings (41) in each group, and the multiple water leakage openings (41) are arranged at non-equidistant intervals along the width direction of the transmission filter belt (21). Preferably, the density of the water leakage openings (41) at the center of the transmission filter belt (21) is greater than the density of the water leakage openings (41) at both sides of the transmission filter belt (21). Preferably, the water leakage port (41) is a structure with a large inlet and a small outlet, and the outlet is inclined in the drainage direction. Preferably, the inner wall of the water leakage port (41) has an uneven structure; When in use, the transmission structure replaces the transmission pipe (6) in the filter press, starts the third rotating motor (7), drives the main driving pulley (8) to rotate, the main driving pulley (8) drives the slave driving pulley (10) to rotate, the slave driving pulley (10) drives the third rotating rod (30) of the curved structure to rotate, the third rotating rod (30) drives the spiral blade (31) to rotate, and at the same time cooperates with the main protrusion block (39) and the auxiliary protrusion block (40) to disturb the sludge, thereby reducing the agglomeration of the sludge and reducing the blockage caused by the agglomerated sludge entering the upper and lower filter belts (34) of the filter press box (13), the third rotating rod (30) of the curved structure drives the spiral blade (31) to rotate, the third rotating rod (30) of the curved structure drives the spiral blade (31) to rotate, the spiral blade (31) moves the sludge from one end of the transmission pipe (6) and the transmission filter belt (21) whose inner walls are bent in multiple arc shapes to the other end, thereby enhancing the squeezing force on the sludge and improving the dehydration effect of the sludge. Example 2

[0013] The difference between this embodiment and embodiment 1 is that the third rotating rod (30) is formed by a plurality of spliced ​​short rods (43) spliced ​​end to end, a connecting groove is formed at one end of the spliced ​​short rod (43), a connecting block (42) corresponding to the spliced ​​groove is disposed at the other end of the spliced ​​short rod (43), the end to end splicing of the plurality of spliced ​​short rods (43) corresponds one to one to the plurality of recessed portions of the third rotating rod (30), the shape of each spliced ​​short rod (43) corresponds to the shape of each section of the third rotating rod (30), and the The connecting groove is an arc-shaped groove, the connecting block (42) is an arc-shaped block, and a rubber pad is built into the connecting groove; when in use, the structure of the third rotating rod (30) can be made more flexible, and the length or shape of the third rotating rod (30) can be adjusted as needed, so that the third rotating rod (30) is suitable for transmission pipes (6) of different lengths and diameters; the rubber pad is used to play a sealing role when the connecting block (42) is inserted into the connecting groove, so that the joints of the multiple spliced ​​short rods (43) are more tightly connected, thereby improving the stability of the third rotating rod (30); Example 3

[0014] The difference between this embodiment and embodiment 1 is that: the spiral blade (31) is provided with a water filter port (44); preferably, the water filter port (44) is provided in a plurality of groups, and the plurality of groups of water filter ports (44) are arranged at equal intervals from one end to the other end of the spiral blade (31); each group has a plurality of water filter ports (44), and the plurality of water filter ports (44) are arranged at non-equidistant intervals along the width direction of the spiral blade (31); the density of the water filter ports (44) gradually increases from one end to the other end of the spiral blade (31); when in use, when the spiral blade (31) moves the sludge from one end to the other end of the transmission pipe (6), a portion of the water in the sludge can be discharged from the water filter port (44) to the transmission filter belt (21) under the action of gravity and the squeezing of the spiral blade (31), and then discharged from the water leakage port (41) on the transmission filter belt (21), so that the drainage effect is better and the drainage efficiency can be improved; The density of the arc-shaped curved portion is designed to gradually increase from one end to the other end of the transmission pipe (6). As the density of the arc-shaped curved portion gradually increases, the extrusion force applied by the spiral blade (31) when in contact with the arc-shaped curved portion also increases, thereby improving the extrusion effect on the sludge, achieving a better initial dehydration effect on the sludge, and preventing the sludge from accumulating or clogging in the transmission pipe (6), thereby promoting the continuous flow of the sludge and its smooth discharge; The surface of the raised portion is an arc-shaped structure, which can reduce the rotational resistance of the third rotating rod (30); under the action of the rotating centrifugal force, the arc-shaped structure can enhance the stability of the third rotating rod (30), reduce the bending or deformation of the third rotating rod (30), extend the service life of the third rotating rod (30), and make it easier to install the spiral blade (31) on the raised portion; The inner diameter of the third rotating rod (30) gradually decreases from the middle to both ends, the inner diameter of one end of the third rotating rod (30) is larger than the inner diameter of the other end, and the plurality of recessed portions are designed as hollow structures, which can reduce the weight of the third rotating rod (30), reduce the inertia of the third rotating rod (30), thereby reducing the rotational resistance of the third rotating rod (30), reducing the bending or deformation of the third rotating rod (30), and extending the service life of the third rotating rod (30); The main protrusion block (39) is a trapezoidal structure. The width of the main protrusion block (39) gradually increases from one side connected to the side of the third rotating rod (30) to the other side. The other side of the main protrusion block (39) is provided with a plurality of vertical grooves. The plurality of vertical grooves are arranged equidistantly along the width direction of the main protrusion block (39). The width of the vertical grooves gradually increases from the bottom of the groove to the groove mouth. The depths of two adjacent vertical grooves are designed to be different. The main protrusion block (39) and the vertical grooves can effectively disrupt the flow direction of the sludge around the third rotating rod (30), reduce the resistance of the sludge to the third rotating rod (30), optimize the flow direction of the sludge, reduce the generation of eddy currents, reduce the agglomeration of the sludge, and reduce the blockage caused by the agglomerated sludge entering the upper and lower filter belts (34) of the filter press box (13); The auxiliary protrusion block (40) is a hemispherical structure, and a plurality of arc-shaped spoiler grooves are formed on the surface of the auxiliary protrusion block (40). The plurality of arc-shaped spoiler grooves are arranged in a staggered and equidistant manner along the surface of the auxiliary protrusion block (40). The width of the arc-shaped spoiler grooves gradually decreases from one end to the other end, and the depth of the arc-shaped spoiler grooves gradually increases from the bottom of the groove to the groove mouth. The auxiliary protrusion block (40) and the arc-shaped spoiler grooves can effectively disrupt the flow direction of the sludge around the third rotating rod (30), reduce the resistance of the sludge to the third rotating rod (30), optimize the flow direction of the sludge, reduce the generation of eddy currents, reduce the agglomeration of the sludge, and reduce the blockage caused by the agglomerated sludge entering the upper and lower filter belts (34) of the filter press box (13); A plurality of scraping teeth are evenly arranged on the surfaces of the main protrusion block (39) and the auxiliary protrusion block (40); the scraping teeth are triangular prism structures with edges facing outwards, and the scraping teeth can crush the sludge to a certain extent, thereby reducing the agglomeration of the sludge and reducing the blockage caused by the agglomerated sludge entering the upper and lower filter belts (34) of the filter press box (13); The density of the water leakage openings (41) at the center of the transmission filter belt (21) is greater than the density of the water leakage openings (41) at both sides of the transmission filter belt (21). The contact area between the center of the transmission filter belt (21) and the sludge is larger, and more water is discharged. The water leakage openings (41) with a larger density are more conducive to the discharge of water flow, thereby improving the drainage efficiency. The leaking port (41) is designed to have a large inlet and a small outlet, and the outlet is inclined in the drainage direction, which can form a certain pressure difference at the leaking port (41), prompting water to be discharged from the leaking port (41) more quickly, thereby improving drainage efficiency, and reducing the possibility of sludge passing through the leaking port (41), reducing the risk of blockage, and ensuring smooth water discharge; the outlet is inclined in the drainage direction, which can effectively prevent water from flowing back into the leaking port (41), ensuring that water only flows in the drainage direction; The inner wall of the water leakage port (41) is designed with an uneven structure, which can increase the surface area of ​​the inner wall of the water leakage port (41) and increase the contact area with the water flow, thereby enhancing the interaction between the water flow and the inner wall of the water leakage port (41), promoting faster discharge of the water flow, improving the drainage efficiency, and reducing the adhesion of sludge on the inner wall of the water leakage port (41), reducing the risk of blockage, keeping the water leakage port (41) unobstructed, and ensuring smooth discharge of the water flow; The third rotating rod (30) of the curved structure can drive the spiral blade (31) to rotate, and at the same time cooperate with the main protrusion block (39) and the auxiliary protrusion block (40) to disturb the sludge, thereby reducing the agglomeration of the sludge. The spiral blade (31) can also move the sludge from one end of the transmission pipe (6) and the transmission filter belt (21) whose inner walls are bent multiple times in arcs to the other end, thereby enhancing the squeezing force on the sludge and improving the dehydration effect of the sludge.

[0015] It should be noted that the spiral extrusion dehydration enhanced transmission structure is suitable for the following filter presses: The filter press of the present invention is realized as follows: The filter press of the present invention is composed of a flocculation component, a transmission component, a drainage component and a filter press component. The flocculation assembly is composed of a first support frame (1), a flocculation mixing cylinder (2), a first rotating motor (3), a drug addition port (4), a sewage inlet (5), a first rotating rod (23), a second rotating rod (24), a stirring blade (25), a second rotating motor (29), a motor placement shell (26), a supporting base (27), and a water outlet (28). The bottom surface of the flocculation mixing cylinder (2) is placed on the top surface of the first support frame (1). A first rotating motor (3) is disposed in the middle of the top surface of the flocculation mixing cylinder (2). The top surface of the flocculation mixing cylinder (2) is provided with a drug addition port (4) and a sewage inlet port (5). The first rotating rod (23) is placed in the flocculation mixing cylinder (2). One end of the first rotating rod (23) is connected to the motor shaft of the first rotating motor (3) through a through hole opened in the middle of the top surface of the flocculation mixing cylinder (2). The support base (27) is placed in the middle of the inner bottom surface of the flocculation mixing cylinder (2). The motor housing (26) is placed in a through groove opened on the top surface of the support base (27) via a bearing. Preferably, the motor housing shell (26) is a cylindrical structure. The other end of the first rotating rod (23) is placed in the middle of the motor placement shell (26). The second rotating motor (29) is placed on the inner bottom surface of the motor placement shell (26). Preferably, there are a plurality of the second rotating motors (29), and the plurality of the second rotating motors (29) are arranged equidistantly along the circumferential direction of the inner bottom surface of the motor placement shell (26). One end of the second rotating rod (24) passes through a through hole opened on the top surface of the motor placement shell (26) and is connected to the motor shaft of the second rotating motor (29) in a corresponding manner. The other end of the second rotating rod (24) is placed on the bottom surface of the stirring blade (25). Preferably, the stirring blade (25) is an arc-shaped structure. Preferably, the plurality of stirring blades (25) are driven by the plurality of second rotating motors (29) to rotate in different directions. The bottom surface of the flocculation mixing cylinder (2) is provided with a water outlet hole (28). The transmission assembly is composed of a second support frame (17), a third rotating motor (7), a main driving pulley (8), a slave driving pulley (10), a transmission belt (9), a transmission pipe (6), a sewage discharge channel (22), a transmission filter belt (21), a first mud conveying channel (11), a third rotating rod (30) and a spiral blade (31). The transmission tube (6) is a cylindrical structure with both ends closed. One end of the sewage discharge channel (22) is placed on the bottom surface of the first support frame (1), and is connected to the water outlet hole (28) via a through hole opened on the first support frame (1). The angle between the sewage discharge channel (22) and the flocculation mixing cylinder (2) is greater than 90 degrees. The sewage discharge channel (22) is located above one end of the transmission pipe (6). The other end of the sewage discharge channel (22) is vertically disposed on the side of one end of the transmission pipe (6) and is connected to the transmission pipe (6). The height of the transmission pipe (6) gradually increases from one end to the other end. The second support frame (17) is located above the other end of the transmission pipe (6). The second support frame (17) is vertically placed on the side of the other end of the transmission pipe (6). The third rotating motor (7) is placed on the top surface of the second supporting frame (17). The wheel shaft of the main driving pulley (8) is connected to the motor shaft of the third rotating motor (7). The slave drive pulley (10) is located directly below the master drive pulley (8) and outside the other end of the transmission tube (6). The main drive pulley (8) and the slave drive pulley (10) are connected via a transmission belt (9). One end of the third rotating rod (30) is connected to the axle of the secondary driving pulley (10). The other end of the third rotating rod (30) passes through a through hole in the middle of the other end of the transmission tube (6) and is placed in the middle of one end of the transmission tube (6) through a bearing. A spiral blade (31) is disposed on the side of the third rotating rod (30). The edge of the spiral blade (31) is in contact with the inner wall of the transmission pipe (6). The bottom of the side of the transmission pipe (6) is formed by a transmission filter belt (21). The first mud conveying channel (11) is located below the other end of the conveying pipe (6). One end of the first mud conveying channel (11) is vertically placed on the side of the other end of the transmission pipe (6) and is connected to the transmission pipe (6). The drainage assembly is composed of a support leg (18), a support plate (19) and a drainage channel (20). One end of the support leg (18) is placed on the side of the transmission pipe (6). Preferably, there are multiple groups of the support legs (18), and the multiple groups of the support legs (18) are symmetrically arranged on the side of the transmission tube (6). There are multiple support legs (18) in each group, and the multiple support legs (18) are arranged equidistantly along the axial direction of the transmission tube (6). The heights of the multiple support legs (18) gradually increase along the axial direction of the transmission tube (6). Preferably, the other end of the supporting leg (18) is a tripod structure. Preferably, a plurality of anti-slip protrusions are evenly arranged on the bottom surface of the supporting foot (18). A support plate (19) is disposed between the inner side surfaces of the two symmetrical support legs (18), and the top surface of the support plate (19) is an arc-shaped structure. The drainage channel (20) is located directly below the transmission filter belt (21); the drainage channel (20) is an arc-shaped structure with an opening at the upper end; the length of the drainage channel (20) is equal to the length of the transmission filter belt (21). Preferably, one end of the drainage channel (20) extends to one end of the transmission filter belt (21) and is bent at an obtuse angle and placed on the ground, and the other end of the drainage channel (20) extends beyond the other end of the transmission filter belt (21). The drainage channel (20) is placed on the support plate (19). The filter press assembly comprises a filter press box (13), a second mud conveying channel (12), a drainage pipe (32), a mud collecting box (16), a main upper pressure roller (14), a secondary upper pressure roller (36), a main lower pressure roller (15), a secondary lower pressure roller (35), an upper filter belt (33) and a lower filter belt (34). The filter press box (13) is a square structure with an opening on the right side. One end of the second mud conveying channel (12) is placed at the middle of one end of the top surface of the filter press box (13) and is connected to the filter press box (13). The left side surface of the second mud conveying channel (12) is flush with the left side surface of the filter press box (13). The other end of the first mud conveying channel (11) is placed at the other end of the second mud conveying channel (12), and is in communication with the other end of the second mud conveying channel (12). A fourth rotating motor and a fifth rotating motor are disposed on the rear side of the filter press box (13). A main upper pressure roller (14) and a plurality of secondary upper pressure rollers (36) are disposed on the upper end of the rear inner side surface of the filter press box (13). A main lower pressure roller (15) and a plurality of secondary lower pressure rollers (35) are disposed at the lower end of the rear inner side surface of the filter press box (13). One end of the main upper pressure roller (14) is connected to the motor shaft of the fourth rotating motor via a through hole opened on the rear side of the filter press box (13). The other ends of the main upper pressure rollers (14) are respectively placed on the front inner side of the filter press box (13) via bearings. The two ends of the plurality of upper pressure rollers (36) are respectively placed on the front and rear inner sides of the filter press box (13) via bearings. The leftmost side of the upper pressure roller (36) is close to the right side of the second mud conveying channel (12), One end of the main lower pressure roller (15) is connected to the motor shaft of the fifth rotating motor via a through hole opened on the rear side of the filter press box (13). The other ends of the main lower pressure rollers (15) are respectively placed on the front inner side of the filter press box (13) through bearings. The two ends of the plurality of lower pressure rollers (35) are respectively placed on the front and rear inner sides of the filter press box (13) through bearings. The leftmost side of the lower pressure roller (35) is close to the left inner side of the filter press box (13), The main upper pressure roller (14) and the plurality of the secondary upper pressure rollers (36) are connected via an upper filter belt (33), and the main lower pressure roller (15) and the plurality of the secondary lower pressure rollers (35) are connected via a lower filter belt (34). The height of the upper filter belt (33) gradually decreases along the direction of sludge transportation, and the height of the lower filter belt (34) gradually increases along the direction of sludge transportation. Preferably, the width of the upper filter belt (33) is equal to the width of the lower filter belt (34). One end of the drainage pipe (32) is placed at the bottom of the left side of the filter press box (13) and is connected to the filter press box (13). The mud collecting box (16) is a structure with an opening at the upper end. The mud collecting box (16) is located outside the right side of the filter press box (13), and the width of the mud collecting box (16) is greater than the width of the lower filter belt (34). Preferably, one side of the mud collecting box (16) is an openable and closable structure. When in use, sewage first enters the flocculation mixing drum (2) through the sewage inlet (5), and the flocculant is added to the flocculation mixing drum (2) through the dosing port (4). The first rotating motor (3) and the second rotating motor (29) are started, and the first rotating motor (3) drives the first rotating rod (23) and the stirring blade (25) to rotate in the same direction, and the second rotating motor (29) drives the second rotating rod (24) and the corresponding single stirring blade (25) to rotate in different directions, so that the sewage entering the flocculation mixing drum (2) and the flocculant can be more fully contacted. The flocculated sludge is more; then the flocculated sludge enters the drainage channel (22) through the water outlet (28), enters the transmission pipe (6) through the drainage channel (22), starts the third rotating motor (7), the third rotating motor (7) drives the main driving pulley (8) to rotate, the main driving pulley (8) drives the slave driving pulley (10) to rotate, the slave driving pulley (10) drives the third rotating rod (30) to rotate, the third rotating rod (30) drives the spiral blade (31) to rotate, and the spiral blade (31) pushes the flocculated sludge from the transmission pipe (6) ) moves from one end to the other end, and water in the sludge enters the drainage channel (20) from the mesh of the transmission filter belt (21) under the action of gravity and the squeezing of the spiral blades (31), and is discharged from the drainage channel (20). Under the action of gravity, the sludge enters the first sludge conveying channel (11) from the other end of the transmission pipe (6), enters the second sludge conveying channel (12) from the first sludge conveying channel (11), and enters the filter press box (13) from the second sludge conveying channel (12); finally, the fourth rotary motor and the fifth rotary motor are started, and the main upper pressure roller (14) is driven by the fourth rotary motor ) and a plurality of upper pressure rollers (36) are rotated, and the main lower pressure roller (15) and the plurality of lower pressure rollers (35) are driven to rotate by a fifth rotating motor. The sludge that has undergone the initial dehydration treatment is squeezed between the upper and lower filter belts (34) to be dehydrated again. The water in the sludge is filtered by the upper and lower filter belts (34) and enters the bottom of the filter press box (13) and is discharged through the drain pipe (32). The sludge that has undergone the two dehydration treatments enters the sludge collecting box (16), which can reduce the water content of the sludge, thereby improving the sewage treatment efficiency and achieving a better sewage treatment effect. Example 2

[0016] The difference between this embodiment and embodiment 1 is that: a plurality of flow-disturbing protrusions (37) are evenly arranged on the stirring blade (25), and the flow-disturbing protrusions (37) are of a semicircular structure; when in use, the flow-disturbing protrusions (37) can further increase the contact area between the stirring blade (25) and the sewage and flocculant entering the flocculation mixing cylinder (2), thereby stirring the sewage and flocculant, and enabling the sewage and flocculant entering the flocculation mixing cylinder (2) to have more complete contact, resulting in more sludge after flocculation; Example 3

[0017] The difference between this embodiment and embodiment 1 is that: the side surfaces of the main upper pressure roller (14), the secondary upper pressure roller (36), the main lower pressure roller (15) and the secondary lower pressure roller (35) are evenly provided with a plurality of rubber teeth (38), and the rubber teeth (38) are triangular prism structures with the edges facing outwards; when in use, the rubber teeth (38) can further increase the squeezing force of the upper and lower pressure rollers on the upper and lower filter belts (34), so that the upper and lower filter belts (34) have a better dehydration effect on the sludge that has undergone the primary dehydration treatment, and the water content of the sludge is lower; The stirring blade (25) is designed with an arc-shaped structure, which can increase the contact area between the stirring blade (25) and the sewage and flocculant entering the flocculation mixing cylinder (2), and stir the sewage and flocculant, so that the sewage and flocculant entering the flocculation mixing cylinder (2) can be more fully in contact, and more sludge can be flocculated; The plurality of stirring blades (25) are designed to rotate in different directions under the drive of the plurality of second rotating motors (29); the first rotating motor (3) drives the first rotating rod (23) and the stirring blade (25) to rotate in the same direction, and the second rotating motor (29) drives the second rotating rod (24) and the corresponding single stirring blade (25) to rotate in different directions, so that the sewage entering the flocculation mixing cylinder (2) and the flocculant can be more fully contacted, and more sludge can be flocculated; The height of the transmission pipe (6) is designed to gradually increase from one end to the other end. After the transmission filter belt (21) at the bottom of the transmission pipe (6) performs the first dehydration treatment on the flocculated sludge, the water in the sludge is discharged through the mesh of the transmission filter belt (21), thereby preventing the discharged water from flowing back into the sludge and affecting the dehydration effect of the sludge. The bottom surface of the support leg (18) is evenly provided with a plurality of anti-slip protrusions, which can increase the friction between the support leg (18) and the ground, so that the support leg (18) can better support the transmission pipe (6) and reduce shaking; The design that the height of the upper filter belt (33) gradually decreases along the direction of sludge transportation, and the height of the lower filter belt (34) gradually increases along the direction of sludge transportation, can make the distance between the upper filter belt (33) and the lower filter belt (34) smaller and smaller along the direction of sludge transportation, can increase the squeezing force between the upper filter belt (33) and the lower filter belt (34), and achieve a better dehydration effect on the sludge; One side of the mud collecting box (16) is designed as an openable and closable structure. When the dehydrated sludge enters the mud collecting box (16), it is easy to be squeezed into blocks under the action of gravity. The mud collecting box (16) with one side being an openable and closable structure is more convenient for directly transferring the sludge in the mud collecting box (16) and can prevent the sludge from accumulating at the bottom of the mud collecting box (16) to form stubborn sludge.

[0018] The flocculation component can be used to make the sewage and the flocculant fully contact, so that more sludge is produced after flocculation. The sludge is pushed and dehydrated for the first time through the transmission component, and the sludge is dehydrated again through the filter press component, so as to improve the efficiency and effect of sewage treatment.

[0019] After considering the specification and practicing the invention disclosed herein, those skilled in the art will easily think of other similar embodiments of the present invention. This application is intended to cover any modified uses or adaptive changes of the present invention. These modifications or uses, applicability changes follow the general principles of the present invention and include common knowledge or customary technical means in the technical field that are not disclosed in the present invention.

[0020] It should be noted that, for the sake of simplicity, the specific implementation mode of the present invention describes the data processing process of the controller as a series of action combinations. However, those skilled in the art should know that the present invention is not limited to the described actions, because according to the present invention, certain steps can be performed sequentially or simultaneously. Secondly, those skilled in the art should also know that the actions described and involved in the specification are not necessarily required by the present invention. The described contents are only preferred implementation cases of the present invention and cannot be considered to limit the scope of implementation of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation modes and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A filter press spiral extrusion dehydration enhanced transmission structure, characterized by: The invention comprises a transmission tube, a third rotating rod, a second supporting frame, a third rotating motor, a main driving pulley, a slave driving pulley, a transmission belt, a transmission filter belt, a spiral blade, a main protruding block, a secondary protruding block and a water leakage port. The transmission tube is a cylindrical structure with both ends closed. The height of the transmission tube gradually increases from one end to the other end. The second supporting frame is located above the other end of the transmission tube. The second supporting frame is vertically placed on the side of the other end of the transmission tube. The third rotating motor is placed on the top surface of the second supporting frame. The axle of the main driving pulley is connected to the motor shaft of the third rotating motor. The slave driving pulley is located directly below the main driving pulley and on the outside of the other end of the transmission tube. The main driving pulley and the slave driving pulley are connected through a transmission belt. One end of the third rotating rod is connected to the axle of the slave driving pulley. The other end of the third rotating rod passes through a through hole in the middle of the other end of the transmission tube and is placed in the middle of one end of the transmission tube through a bearing. The bottom of the side of the transmission tube is a transmission filter belt structure. The inner wall of the transmission pipe is a structure that is curved multiple times from one end to the other end, the transmission filter belt is a structure that is curved multiple times from one end to the other end, the third rotating rod is a structure that is convex multiple times away from the center from one end to the other end, the angle between the center extension lines of the two ends of the convex part of the third rotating rod is less than 90 degrees, and the other parts of the third rotating rod except the convex part are multiple recessed parts. The side of the third rotating rod is provided with a spiral blade, each blade on the spiral blade corresponds to the multiple convex parts of the third rotating rod one by one, each blade on the spiral blade is correspondingly arranged on the convex part of the third rotating rod, and the angle between the plane where each blade on the spiral blade is located and the center line of the corresponding convex part of the third rotating rod is less than 90 degrees, the edge of the spiral blade is in contact with the curved part of the inner wall of the transmission pipe and the curved part of the transmission filter belt, the recess of the third rotating rod is provided with a main protrusion block, the convex part of the third rotating rod is provided with a plurality of auxiliary protrusion blocks, and the transmission filter belt is provided with a water leakage port.

2. The filter press spiral extrusion dehydration enhanced transmission structure according to claim 1, characterized in that The third rotating rod is formed by a plurality of spliced ​​short rods spliced ​​end to end, a connecting groove is formed at one end of the spliced ​​short rod, a connecting block corresponding to the connecting groove is disposed at the other end of the spliced ​​short rod, the end to end splicing of the plurality of spliced ​​short rods corresponds one by one to the plurality of recessed portions of the third rotating rod, and the shape of each spliced ​​short rod corresponds to the shape of each section of the third rotating rod; the connecting groove is an arc groove, the connecting block is an arc block, and a rubber pad is built into the connecting groove.

3. The filter press spiral extrusion dehydration enhanced transmission structure according to claim 1, characterized in that The spiral blade is provided with water filter openings; there are multiple groups of the water filter openings, which are staggered from one end to the other end of the spiral blade, there are multiple water filter openings in each group, and the multiple water filter openings are non-equidistantly arranged along the width direction of the spiral blade; the density of the water filter openings gradually increases from one end to the other end of the spiral blade.

4. The filter press spiral extrusion dehydration enhanced transmission structure according to claim 1, characterized in that The density of the arcuate curved portion gradually increases from one end to the other end of the transmission pipe, and the density of the arcuate curved portion gradually increases from one end to the other end of the transmission filter belt. As the density of the arcuate curved portion gradually increases, the extrusion force applied when the spiral blade and the arcuate curved portion contact each other will also increase, which can improve the extrusion effect on the sludge, achieve a better initial dehydration effect of the sludge, and prevent the accumulation or blockage of the sludge in the transmission pipe, thereby promoting the continuous flow of the sludge and its smooth discharge.

5. The filter press spiral extrusion dehydration enhanced transmission structure according to claim 1, characterized in that The surface of the raised portion is an arc-shaped structure, which can reduce the rotation resistance of the third rotating rod. Under the action of the rotating centrifugal force, the arc-shaped structure can enhance the stability of the third rotating rod, reduce the bending or deformation of the third rotating rod, extend the service life of the third rotating rod, and make it easier to install the spiral blade on the raised portion; The plurality of recessed portions are hollow structures.

6. The filter press spiral extrusion dehydration enhanced transmission structure according to claim 1, characterized in that The inner diameter of the third rotating rod gradually decreases from the middle to both ends, the inner diameter of one end of the third rotating rod is larger than the inner diameter of the other end, and the design of the plurality of recessed portions as hollow structures can reduce the weight of the third rotating rod, reduce the inertia of the third rotating rod, thereby reducing the rotational resistance of the third rotating rod, reducing the bending or deformation of the third rotating rod, and extending the service life of the third rotating rod; the inner diameter of one end of the third rotating rod is larger than the inner diameter of the other end.

7. The filter press spiral extrusion dehydration enhanced transmission structure according to claim 1, characterized in that There are multiple main protrusion blocks, and the multiple main protrusion blocks are equidistantly arranged along the circumference of the recessed portion, and the sizes of the multiple main protrusion blocks are different. The main protrusion block is a trapezoidal structure, and the width of the main protrusion block gradually increases from one side connected to the side of the third rotating rod to the other side. The other side of the main protrusion block is provided with multiple vertical grooves, and the multiple vertical grooves are equidistantly arranged along the width direction of the main protrusion block, and the width of the vertical grooves gradually increases from the bottom of the groove to the groove mouth, and the depths of two adjacent vertical grooves are different; the main protrusion blocks and the vertical grooves can effectively disrupt the flow direction of the sludge around the third rotating rod, reduce the resistance of the sludge to the third rotating rod, optimize the flow direction of the sludge, reduce the generation of eddy currents, reduce the agglomeration of sludge, and reduce the blockage caused by the agglomerated sludge entering the upper and lower filter belts of the filter press.

8. A filter press spiral extrusion dehydration enhanced transmission structure according to claim 1 or 7, characterized in that The size of the secondary protrusion block is smaller than that of the main protrusion block, and the plurality of secondary protrusion blocks are arranged equidistantly along the circumference of the protrusion portion, and the sizes of the plurality of secondary protrusion blocks are different. The secondary protrusion block is a hemispherical structure, and the surface of the secondary protrusion block is provided with a plurality of arc-shaped spoiler grooves, and the plurality of arc-shaped spoiler grooves are arranged staggered and equidistantly along the surface of the secondary protrusion block. The width of the arc-shaped spoiler groove gradually decreases from one end to the other end, and the depth of the arc-shaped spoiler groove gradually increases from the bottom of the groove to the groove mouth. The secondary protrusion block and the arc-shaped spoiler groove can Effectively disrupt the flow direction of the sludge around the third rotating rod, reduce the resistance of the sludge to the third rotating rod, optimize the flow direction of the sludge, reduce the generation of eddy currents, reduce the agglomeration of the sludge, and reduce the blockage caused by the agglomerated sludge entering the upper and lower filter belts of the filter press; a plurality of scraping teeth are evenly arranged on the surface of the main protrusion block and the auxiliary protrusion block, and the scraping teeth are of a triangular prism structure with the edges facing outward. The scraping teeth can crush the sludge to a certain extent, reduce the agglomeration of the sludge, and reduce the blockage caused by the agglomerated sludge entering the upper and lower filter belts of the filter press.

9. The filter press spiral extrusion dehydration enhanced transmission structure according to claim 1, characterized in that There are multiple groups of water leakage ports, which are staggered along the length direction of the transmission filter belt. There are multiple water leakage ports in each group, which are non-equidistantly arranged along the width direction of the transmission filter belt. The density of the water leakage ports at the center of the transmission filter belt is greater than the density of the water leakage ports at both sides of the transmission filter belt. The water leakage ports are of a structure with a large inlet and a small outlet, and the outlet is inclined in the drainage direction, which can form a certain pressure difference at the water leakage ports, prompting water to be discharged from the water leakage ports more quickly, improving drainage efficiency, and reducing the possibility of sludge passing through the water leakage ports, reducing the risk of blockage, and ensuring smooth water discharge; The structure in which the outlet is inclined toward the drainage direction can effectively prevent water from flowing in the opposite direction into the leaking outlet, ensuring that the water only flows in the drainage direction; the inner wall of the leaking outlet is an uneven structure.

10. The filter press spiral extrusion dehydration enhanced transmission structure according to claim 1, characterized in that The filter press is composed of a flocculation component, a transmission component, a drainage component and a filter press component. The flocculation component is composed of a first support frame, a flocculation mixing cylinder, a first rotating motor, a dosing port, a sewage inlet, a first rotating rod, a second rotating rod, a stirring blade, a second rotating motor, a motor placement shell, a support base and a water outlet. The bottom surface of the flocculation mixing cylinder is placed on the top surface of the first support frame, the first rotating motor is placed in the middle of the top surface of the flocculation mixing cylinder, the dosing port and the sewage inlet are opened on the top surface of the flocculation mixing cylinder, the first rotating rod is placed in the flocculation mixing cylinder, one end of the first rotating rod is connected to the motor shaft of the first rotating motor through a through hole opened in the middle of the top surface of the flocculation mixing cylinder, the support base is placed in the middle of the inner bottom surface of the flocculation mixing cylinder, and the motor is placed in the middle of the inner bottom surface of the flocculation mixing cylinder. The motor housing is placed in a through groove opened on the top surface of the support base through a bearing, the motor housing is a cylindrical structure, the other end of the first rotating rod is placed in the middle of the motor housing, the second rotating motor is placed on the inner bottom surface of the motor housing, there are multiple second rotating motors, and the multiple second rotating motors are arranged equidistantly along the circumferential direction of the inner bottom surface of the motor housing, one end of the second rotating rod passes through the through hole opened on the top surface of the motor housing and is connected to the motor shaft of the second rotating motor, the other end of the second rotating rod is placed on the bottom surface of the stirring blade, the stirring blade is an arc structure, and the multiple stirring blades rotate in different directions under the drive of the multiple second rotating motors, the bottom surface of the flocculation mixing cylinder is provided with a water outlet hole, and the transmission group The device is composed of a second support frame, a third rotating motor, a main driving pulley, a slave driving pulley, a transmission belt, a transmission pipe, a sewage channel, a transmission filter belt, a first mud conveying channel, a third rotating rod and a spiral blade. The transmission pipe is a cylindrical structure with two closed ends. One end of the sewage channel is placed on the bottom surface of the first support frame and is connected to the water outlet through a through hole opened on the first support frame. The angle between the sewage channel and the flocculation mixing cylinder is greater than 90 degrees. The sewage channel is located above one end of the transmission pipe. The other end of the sewage channel is vertically placed on the side of one end of the transmission pipe and is connected to the transmission pipe. The height of the transmission pipe gradually increases from one end to the other end. The second support frame is located above the other end of the transmission pipe. The second support frame The third rotating motor is placed vertically on the side of the other end of the transmission tube, the third rotating motor is placed on the top surface of the second supporting frame, the axle of the main driving pulley is connected to the motor shaft of the third rotating motor, the slave driving pulley is located directly below the main driving pulley and outside the other end of the transmission tube, the main driving pulley and the slave driving pulley are connected through a transmission belt, one end of the third rotating rod is connected to the axle of the slave driving pulley, the other end of the third rotating rod passes through the middle part of the other end of the transmission tube and is placed in the middle part of one end of the transmission tube through a bearing, a spiral blade is placed on the side of the third rotating rod, the edge of the spiral blade is in contact with the inner wall of the transmission tube, and the bottom of the side of the transmission tube is composed of a transmission filter belt.The first mud conveying channel is located below the other end of the transmission pipe, one end of the first mud conveying channel is vertically placed on the side of the other end of the transmission pipe and is communicated with the transmission pipe, the drainage assembly is composed of a supporting foot, a supporting plate and a drainage channel, one end of the supporting foot is placed on the side of the transmission pipe, there are multiple groups of supporting feet, multiple groups of supporting feet are symmetrically placed on the side of the transmission pipe, there are multiple supporting feet in each group, multiple supporting feet are equidistantly arranged along the axial direction of the transmission pipe, the height of multiple supporting feet gradually increases along the axial direction of the transmission pipe, the other end of the supporting foot is a tripod structure, the bottom surface of the supporting foot is evenly provided with multiple anti-slip protrusions, and the inner side surfaces of the two symmetrical supporting feet are respectively provided with corresponding A support plate, the top surface of the support plate is an arc-shaped structure, the drainage channel is located directly below the transmission filter belt, the drainage channel is an arc-shaped structure with an opening at the upper end, the length of the drainage channel is equal to the length of the transmission filter belt, one end of the drainage channel extends to one end of the transmission filter belt and is bent at an obtuse angle and placed on the ground, the other end of the drainage channel extends to the outside of the other end of the transmission filter belt, the drainage channel is placed on the support plate, the filter press assembly consists of a filter press box, a second mud conveying channel, a drainage pipe, a mud collecting box, a main upper pressure roller, a secondary upper pressure roller, a main lower pressure roller, a secondary lower pressure roller, an upper filter belt and a lower filter belt, the filter press box is a square structure with an opening on the right side, one end of the second mud conveying channel is placed in the middle of one end of the top surface of the filter press box, and is aligned with the filter press box. The filter press box is connected, the left side surface of the second mud delivery channel is flush with the left side surface of the filter press box, the other end of the first mud delivery channel is placed on the other end of the second mud delivery channel, and is connected to the other end of the second mud delivery channel, the rear side surface of the filter press box is provided with a fourth rotating motor and a fifth rotating motor, the upper end of the rear inner side surface of the filter press box is provided with a main upper pressure roller and a plurality of slave upper pressure rollers, the lower end of the rear inner side surface of the filter press box is provided with a main lower pressure roller and a plurality of slave lower pressure rollers, one end of the main upper pressure roller is correspondingly connected to the motor shaft of the fourth rotating motor through a through hole opened on the rear side surface of the filter press box, the other end of the main upper pressure roller is respectively placed on the front inner side surface of the filter press box through bearings, and the two ends of the plurality of slave upper pressure rollers are respectively passed through The bearings are placed on the front and rear inner sides of the filter press box, the leftmost slave pressure roller is close to the right side of the second sludge conveying channel, one end of the main lower pressure roller is connected to the motor shaft of the fifth rotating motor through the through hole opened on the rear side of the filter press box, the other end of the main lower pressure roller is placed on the front inner side of the filter press box through bearings, the two ends of multiple slave pressure rollers are placed on the front and rear inner sides of the filter press box through bearings, the leftmost slave pressure roller is close to the left inner side of the filter press box, the main upper pressure roller and multiple slave pressure rollers are connected through an upper filter belt, the main lower pressure roller and multiple slave pressure rollers are connected through a lower filter belt, and the height of the upper filter belt gradually decreases with the direction of sludge transportation.The height of the lower filter belt gradually increases with the direction of sludge transportation, the width of the upper filter belt is equal to the width of the lower filter belt, one end of the drain pipe is placed at the bottom of the left side of the filter press box and is connected to the filter press box, the mud collecting box is a structure with an upper end opening, the mud collecting box is located outside the right side of the filter press box, the width of the mud collecting box is greater than the width of the lower filter belt, and preferably, one side of the mud collecting box is an openable structure.

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