Filter press

Abstract

According to the filter press, sewage and a flocculating agent are in full contact through a flocculation assembly, more flocculated sludge is obtained, the sludge is pushed and dewatered for the first time through a conveying assembly, the sludge is dewatered again through a filter pressing assembly, and the sewage treatment efficiency and effect can be improved. The device is characterized in that the device is composed of a flocculation assembly, a transmission assembly, a drainage assembly and a filter pressing assembly, and the flocculation assembly is composed of a first supporting frame, a flocculation mixing barrel, a first rotating motor, a dosing port, a sewage inlet, a first rotating rod, a second rotating rod, stirring blades, a second rotating motor, a motor containing shell, a supporting base and a water outlet hole; the bottom surface of the flocculation mixing cylinder is arranged on the top surface of the first supporting frame, a first rotating motor is arranged in the middle of the top surface of the flocculation mixing cylinder, a dosing port and a sewage inlet are formed in the top surface of the flocculation mixing cylinder, and a first rotating rod is arranged in the flocculation mixing cylinder.

Description

Technical Field

[0001] The invention discloses a filter press capable of improving the efficiency and effect of sewage treatment, and belongs to the technical field of sewage treatment, and particularly relates to a filter press capable of improving the efficiency and effect of sewage treatment by enabling sewage and a flocculant to be fully contacted through a flocculation component, producing more sludge after flocculation, pushing and initially dehydrating the sludge through a transmission component, and dehydrating the sludge again through a filter press component. 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, due to the strong fluidity of the flocculated sludge, it is easy to flow and displace in the process of being driven by the filter belt. During the movement process, a lot of sludge will solidify 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 sludge remaining 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. Summary of the invention

[0004] In order to improve the above situation, a filter press of the present invention provides a filter press which enables sewage and flocculant to be fully contacted through a flocculation component, so that more sludge is produced after flocculation, pushes the sludge and performs a first dehydration treatment on the sludge through a transmission component, and dehydrates the sludge again through a filter press component, thereby improving the efficiency and effect of sewage treatment.

[0005] 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, 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 two groups of support legs, and the two groups of support legs are symmetrically placed on the sides 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

[0006] 1. The first rotating motor drives multiple stirring blades to rotate in the same direction, and the multiple second rotating motors drive the corresponding single stirring blades to rotate in different directions, so that the sewage and flocculant entering the flocculation mixing cylinder can be more fully contacted, and more sludge is produced after flocculation, thereby improving the sewage treatment efficiency and achieving better sewage treatment effects.

[0007] Second, the main driving pulley is driven to rotate by the third rotating motor, the main driving pulley drives the slave driving pulley to rotate, and the slave driving pulley drives the third rotating rod and the spiral blade to rotate, so that the spiral blade can push the flocculated sludge entering the transmission pipe forward along the transmission filter belt, so that the transmission filter belt performs the first dehydration treatment on the sludge, and can reduce the sludge coagulation and residue on the transmission filter belt, thereby improving the sewage treatment efficiency and achieving a better sewage treatment effect.

[0008] 3. The main upper pressure roller and multiple secondary pressure rollers are driven to rotate by the fourth rotating motor, and the main lower pressure roller and multiple secondary pressure rollers are driven to rotate by the fifth rotating motor. The sludge that has been dehydrated for the first time is squeezed between the upper and lower filter belts, and can be dehydrated again. The moisture in the sludge is filtered by the upper and lower filter belts and enters the bottom of the filter press box and is discharged from the drain pipe. The sludge that has been dehydrated twice enters the sludge collecting box, which can reduce the moisture content of the sludge, thereby improving the sewage treatment efficiency and achieving better sewage treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] 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 3 This 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 Example 3 of a filter press of the present invention. Attached photos

[0010] 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), and a third rotating motor (7). ), a drainage channel (20), a transmission filter belt (21), a sewage channel (22), a first rotating rod (23), a second rotating rod (24), a stirring blade (25), a motor placement shell (26), a support 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 spoiler protrusion (37), and a rubber tooth (38). DETAILED DESCRIPTION Example 1

[0011] 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 two groups of the support legs (18), the two 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, the multiple support legs (18) are equidistantly arranged along the axial direction of the transmission tube (6), and 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

[0012] 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

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] It should be noted that the terms "front", "rear", "left" and "right" in the present invention are used in conjunction with the accompanying drawings. Figure 1 The “front”, “back”, “left” and “right” in the text shall prevail.

Claims

1. A filter press, characterized in that: The invention 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, and the first rotating motor is placed in the middle of the top surface of the flocculation mixing cylinder. The top surface of the flocculation mixing cylinder is provided with a dosing port and a sewage inlet. The first rotating rod is placed in the flocculation mixing cylinder, and 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 placement shell is connected to the motor shaft of the first rotating motor through the through hole opened in the middle of the top surface of the flocculation mixing cylinder. The cam is placed in a through groove on the top surface of the support base, 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, one end of the second rotating rod passes through the through hole 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, and a water outlet is provided on the bottom surface of the flocculation mixing drum, the transmission assembly is composed of a second support frame, a third rotating motor, a main drive pulley, a slave drive 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 pipe is a cylindrical structure with closed ends, one end of the sewage discharge channel is placed on the bottom surface of the first support frame, and The through hole opened on the first support frame is connected with the water outlet hole, 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 with the transmission pipe, the second support frame is located above the other end of the transmission pipe, the second support frame is vertically placed on the side of the other end of the transmission pipe, the third rotating motor is placed on the top surface of the second support 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 pipe, the main driving pulley and the slave driving pulley are connected by a transmission belt, and 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 pipe, and a through hole is opened in the middle part of one end of the transmission pipe through a bearing. A spiral blade is arranged on the side of the third rotating rod. 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 with the transmission pipe. The drainage assembly consists of a supporting leg, a supporting plate and a drainage channel. One end of the supporting leg is placed on the side of the transmission pipe. The drainage channel is located directly below the transmission filter belt. The drainage channel is placed on the supporting 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.One end of the second mud delivery 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 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 the 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 placed on the front inner side surface of the filter press box through bearings On the front and rear inner sides of the filter press box, the leftmost 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 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, and the two ends of multiple lower pressure rollers are placed on the front and rear inner sides of the filter press box through bearings, the leftmost lower pressure roller is close to the left inner side of the filter press box, the main upper pressure roller and multiple upper pressure rollers are connected through the upper filter belt, the main lower pressure roller and multiple lower pressure rollers are connected through 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 open upper end, and the mud collecting box is located outside the right side of the filter press box. , 2. A filter press according to claim 1, characterized in that A plurality of flow-disturbing protrusions are evenly arranged on the stirring blades; the flow-disturbing protrusions are of a semicircular structure; when in use, the flow-disturbing protrusions can further increase the contact area between the stirring blades and the sewage and flocculant entering the flocculation mixing cylinder, and stir the sewage and flocculant, so that the sewage and flocculant entering the flocculation mixing cylinder can be more fully contacted, and more sludge can be flocculated.

3. A filter press according to claim 1, characterized in that 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 evenly provided with a plurality of rubber teeth; the rubber teeth are triangular prism structures with the edges facing outwards; when in use, the rubber teeth can further increase the squeezing force of the upper and lower pressure rollers on the upper and lower filter belts, so that the upper and lower filter belts have a better dehydration effect on the sludge that has undergone the first dehydration treatment, and the water content of the sludge is lower.

4. A filter press according to claim 1, characterized in that The motor placement shell is a cylindrical structure. 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 placement shell.

5. A filter press according to claim 1, characterized in that The stirring blade is an arc-shaped structure, which can increase the contact area between the stirring blade and the sewage and flocculant entering the flocculation mixing cylinder, and stir the sewage and flocculant, so that the sewage and flocculant entering the flocculation mixing cylinder can be more fully contacted, and more sludge can be flocculated; the plurality of stirring blades rotate in different directions under the drive of the plurality of second rotating motors, the first rotating motor drives the first rotating rod and the stirring blade to rotate in the same direction, and the second rotating motor drives the second rotating rod and the corresponding single stirring blade to rotate in different directions, so that the sewage and flocculant entering the flocculation mixing cylinder can be more fully contacted, and more sludge can be flocculated.

6. A filter press according to claim 1, characterized in that The angle between the sewage discharge channel and the flocculation mixing cylinder is greater than 90 degrees, and the height of the transmission pipe gradually increases from one end to the other end. After the transmission filter belt at the bottom of the transmission pipe performs the first dehydration treatment on the flocculated sludge, the water in the sludge is discharged through the mesh of the transmission filter belt, which can prevent the discharged water from flowing back into the sludge and affecting the dehydration effect of the sludge.

7. A filter press according to claim 1, characterized in that The side bottom of the transmission pipe is formed by a transmission filter belt.

8. A filter press according to claim 1, characterized in that There are two groups of support legs, and the two groups of support legs are symmetrically placed on the sides 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. The other end of the support legs is a tripod structure, and multiple anti-slip protrusions are evenly arranged on the bottom surface of the support legs. Support plates are respectively placed between the inner side surfaces of the two symmetrical support legs, and the top surface of the support plate is an arc-shaped structure.

9. A filter press according to claim 1, characterized in that 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, and the other end of the drainage channel extends beyond the other end of the transmission filter belt.

10. A filter press according to claim 1, characterized in that The filter press box is a square structure with an opening on the right side. 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, so that the distance between the upper filter belt and the lower filter belt can be made smaller and smaller along the direction of sludge transportation, and the squeezing force between the upper filter belt and the lower filter belt can be increased, which has a better dehydration effect on the sludge; the width of the upper filter belt is equal to the width of the lower filter belt, the width of the mud collecting box is greater than the width of the lower filter belt, and one side of the mud collecting box is an openable and closable structure.

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