Sludge treatment device

Abstract

The utility model discloses a sludge treatment device, which relates to the field of sludge treatment and comprises a sludge crusher shell, a crushing mechanism and a filtering mechanism are sequentially arranged in the sludge crusher shell from top to bottom, the crushing mechanism comprises a crushing shell, a crushing main shaft and a filtering plate, the crushing shell is mounted on the sludge crusher shell through bolts, and the crushing main shaft is mounted on the filtering plate. The crushing main shaft is rotationally arranged in the crushing shell, a plurality of groups of crushing assemblies are uniformly distributed on the crushing main shaft in the circumferential direction of the crushing main shaft, each crushing assembly comprises a plurality of crushing blades, the crushing blades are arranged at equal intervals in the axial direction of the crushing main shaft, and every two adjacent groups of crushing assemblies are arranged in a staggered mode in the axial direction of the crushing main shaft; the filter plate is mounted below the crushing main shaft, and the bottom of the crushing shell is connected with a sludge discharge pipe, so that the crushing efficiency is improved, the sludge is crushed more thoroughly, the subsequent solid-liquid separation effect is better, and the sludge treatment effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a sludge treatment device. Background Art

[0002] Sludge treatment is a process of reducing, stabilizing and making sludge harmless by concentrating, tempering, dehydrating, stabilizing, drying or incinerating sludge. In the process of sludge treatment, solid-liquid separation equipment is needed to separate the sludge into solid and liquid. However, in the actual use of solid-liquid separation equipment for sludge, when the sludge is separated into solid and liquid, the sludge will contain some large sludge blocks. When the solid-liquid separation water is treated, the internal sewage is difficult to be fully separated and squeezed out, and it is easy to cause clogging of the filter element. The existing solid-liquid separation equipment has a complex structure and assembly, which is not convenient for later disassembly to clean or replace the filter element, resulting in a short service life of the sludge treatment equipment. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a sludge treatment device for solving the deficiencies of the prior art.

[0004] The purpose of the utility model is achieved through the following technical solutions: a sludge treatment device, comprising a mud crusher shell, a crushing mechanism and a filtering mechanism are arranged in the mud crusher shell from top to bottom in sequence, the crushing mechanism comprises a crushing shell, a crushing spindle and a filter plate, the crushing shell is installed on the mud crusher shell by bolts, the crushing spindle is rotatably arranged in the crushing shell, a plurality of crushing assemblies are evenly arranged on the crushing spindle along its own circumferential direction, the crushing assembly comprises a plurality of crushing blades, the plurality of crushing blades are arranged at equal intervals along the axial direction of the crushing spindle, two adjacent groups of crushing assemblies are staggered along the axial direction of the crushing spindle, the filter plate is installed below the crushing spindle, and a mud discharge pipe is connected to the bottom of the crushing shell;

[0005] The filtering mechanism comprises a sliding switching plate and two groups of screw conveying mechanisms, the two groups of the screw conveying mechanisms are arranged at intervals in the horizontal direction, the screw conveying mechanism comprises a filter conveying cylinder, an auger conveying assembly and a mesh tail plate, the auger conveying assembly is rotatably arranged in the filter conveying cylinder, the mesh tail plate is installed at one axial end of the filter conveying cylinder, a feed window is opened on the top of the other end of the filter conveying cylinder, the sliding switching plates are arranged at both axial ends of the filter conveying cylinder, the sliding switching plates are slidably installed on the mud crusher housing, the auger shaft in the auger conveying assembly is rotatably connected and penetrated on the sliding switching plate, and the feed windows in the two groups of the screw conveying mechanisms are alternately corresponding to the mud discharge pipe through the movement of the sliding switching plate.

[0006] Furthermore, a partition is fixed to the inner bottom of the mud crusher shell, and the partition divides the mud crusher shell into a sewage chamber and a drying chamber along the axial direction of the filter conveying cylinder. A discharge port is opened at the bottom of the other end of the filter conveying cylinder, and the feed window is located between the discharge port and the mesh tail plate.

[0007] Furthermore, the crushing shell includes a hollow shell, a conical discharge shell and a top plate, the top plate is installed on the top of the hollow shell by screws, the bottom fixing sleeve of the hollow shell is provided with an upper flange, the large-size end fixing sleeve of the conical discharge shell is provided with a lower flange, the lower flange is connected to the upper flange by bolts, the top fixing sleeve of the mud crusher shell is provided with a flange, the upper flange is connected to the flange by bolts, and the crushing main shaft is rotatably installed in the hollow shell.

[0008] Furthermore, a sludge feed pipe is connected to the top of the top plate, and a connecting flange is fixed to one end of the sludge feed pipe away from the top plate.

[0009] Furthermore, an annular mounting platform is fixed in the hollow shell, and the filter plate is mounted on the bottom of the annular mounting platform by screws.

[0010] Furthermore, a driving window is provided on the side wall of the mud crusher housing where the sliding switching plate is set, and sliding grooves are provided on both inner side walls of the driving window. The two ends of the sliding switching plate slide into the two sliding grooves respectively, the top of the sliding switching plate contacts the inner top wall of the driving window, and the bottom of the sliding switching plate contacts the inner bottom wall of the driving window. A cylinder is installed on the outer wall of the mud crusher housing, and the telescopic shaft of the cylinder passes through one of the sliding grooves to connect with the sliding switching plate.

[0011] Furthermore, a conveying motor for driving the auger conveying assembly to rotate is installed on one of the sliding switching plates, and an output shaft of the conveying motor is drivingly connected to the auger shaft.

[0012] Furthermore, a sewage discharge pipe is connected to the bottom of the sewage chamber, the bottom of the drying chamber is open, a bottom plate is hinged at the opening of the drying chamber, a driving cylinder is arranged below the bottom plate, a cylinder body of the driving cylinder is hinged to the mud crusher housing, and a telescopic shaft of the driving cylinder is hinged to the bottom plate.

[0013] Furthermore, a heating chamber is provided between the inner wall and the outer wall of the drying chamber, an electric heating wire is provided in the heating chamber, and a mud receiving pan is provided below the drying chamber.

[0014] The beneficial effects of the utility model are:

[0015] The sludge is crushed by the crushing blade driven by the crushing main shaft. The crushing blade exerts a swirling effect on the sludge and throws the sludge to the filter plate with centrifugal force. At the same time, due to the shearing effect of the high-speed rotation of the crushing blade and the filter plate, the sludge is crushed into small particles between the crushing blade and the filter plate and discharged through the sieve holes of the filter plate. Secondly, the staggered arrangement of multiple groups of crushing components increases the coverage area of ​​the crushing blade, thereby improving the crushing efficiency, making the sludge crushed more thoroughly, and making the subsequent solid-liquid separation effect better, thereby improving the sludge treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the internal structure of a sludge treatment device of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a crushing shell in a sludge treatment device of the utility model;

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of a filtering mechanism in a sludge treatment device of the utility model;

[0020] In the figure, 1-sludge crusher housing, 2-crushing shell, 3-crushing spindle, 4-filter plate, 5-crushing blade, 6-sludge discharge pipe, 7-sliding switching plate, 8-filter conveying cylinder, 9-auger conveying assembly, 10-mesh tail plate, 11-feeding window, 12-partition, 13-sewage chamber, 14-drying chamber, 15-discharge port, 16-hollow shell, 17-conical discharge shell, 18-top plate, 19-upper flange, 20-flange, 21-sludge feed pipe, 22-connecting flange, 23-annular mounting table, 24-drive window, 25-chute, 26-conveying motor, 27-sewage discharge pipe, 28-bottom plate, 29-drive cylinder, 30-sludge receiving tray, 31-lower flange. DETAILED DESCRIPTION

[0021] Embodiment 1

[0022] like Figures 1 to 4As shown, a sludge treatment device comprises a sludge crusher housing 1, in which a crushing mechanism and a filtering mechanism are arranged in sequence from top to bottom, the crushing mechanism comprises a crushing shell 2, a crushing spindle 3 and a filter plate 4, the crushing shell 2 is mounted on the sludge crusher housing 1 by bolts, the crushing spindle 3 is rotatably arranged in the crushing shell 2, a plurality of crushing components are evenly distributed on the crushing spindle 3 along its own circumferential direction, the crushing component comprises a plurality of crushing blades 5, the plurality of crushing blades 5 are arranged at equal intervals along the axial direction of the crushing spindle 3, two adjacent groups of crushing components are staggered along the axial direction of the crushing spindle 3, the filter plate 4 is installed below the crushing spindle 3, a mud discharge pipe 6 is connected to the bottom of the crushing shell 2, and the pretreated sludge enters the crushing shell 2 for crushing treatment, and the pretreatment refers to mixing the sludge with a pharmaceutical agent to remove harmful substances and gases in the sludge, and this pretreatment has different types according to the type of sludge. The sludge in various industries contains different substances. According to the industry requirements, the sludge can be pre-treated by adding specific agents. This belongs to the prior art and will not be repeated here. A driving motor is installed on the outer wall of the pulverizing shell 2. The output shaft of the driving motor is connected to the pulverizing main shaft 3 through a coupling transmission. The driving motor drives the pulverizing main shaft 3 to rotate at a high speed, and the pulverizing main shaft 3 drives the pulverizing blade 5 to rotate at a high speed. The pulverizing blade 5 has a swirling effect on the sludge and throws the sludge to the filter plate 4 with centrifugal force. At the same time, due to the high-speed rotation of the pulverizing blade 5 and the shearing effect of the filter plate 4, the sludge is crushed into small particles between the pulverizing blade 5 and the filter plate 4 and discharged through the sieve holes of the filter plate 4; secondly, the staggered arrangement of multiple groups of pulverizing components increases the coverage area of ​​the pulverizing blade 5, thereby improving the pulverizing efficiency, making the sludge pulverized more thoroughly, and making the subsequent solid-liquid separation effect better, thereby improving the sludge treatment effect.

[0023] like Figure 1 , Figure 3 and Figure 4As shown, the sludge that meets the requirements enters the filter mechanism through the filter plate for solid-liquid separation. The filter mechanism includes a sliding switching plate 7 and two sets of screw conveying mechanisms. The two sets of screw conveying mechanisms are arranged at intervals in the horizontal direction. The screw conveying mechanism includes a filter conveying cylinder 8, an auger conveying component 9 and a mesh tail plate 10. The auger conveying component 9 is rotatably arranged in the filter conveying cylinder 8. The mesh tail plate 10 is installed at one axial end of the filter conveying cylinder 8. A feeding window 11 is opened on the top of the other end of the filter conveying cylinder 8. Sliding switching plates 7 are arranged at both ends of the axial direction of the filter conveying cylinder 8. The sliding switching The plate 7 is slidably mounted on the mud crusher housing 1, and the auger shaft in the auger conveying assembly 9 is rotatably connected and penetrated on the sliding switching plate 7. The sliding switching plate 7 is moved so that the feed windows 11 in the two sets of spiral conveying mechanisms correspond to the mud discharge pipe 6 alternately. The conveying motor 26 for driving the auger conveying assembly to rotate is installed on one of the sliding switching plates 7. The output shaft of the conveying motor 26 is connected to the auger shaft. A valve is provided on the mud discharge pipe 6. The sliding switching plate 7 moves so that the feed window 11 of one of the spiral conveying mechanisms is located directly below the mud discharge pipe 6, and the mud discharge pipe 6 is directed to the filter conveying cylinder 8. Sludge is added into the filter, and the screw conveying mechanism is started at the same time. The sludge is conveyed to the mesh tail plate 10 through the auger conveying component 9. The sludge is squeezed by the conveying and squeezing force of the auger conveying component 9, so that the sewage is discharged through the mesh tail plate 10. When a certain amount is added, the sliding switching plate 7 moves to move the feeding window 11 in the next screw conveying mechanism to the bottom of the mud discharge pipe 6, so that one of the screw conveying mechanisms is used for conveying, squeezing and filtering, and the other screw conveying mechanism is used for conveying and feeding, without affecting each other, so as to avoid the new sludge mixed with the squeezed sludge affecting the squeezing effect. A partition 12 is fixed to the inner bottom of the shell 1, and the partition 12 divides the sludge crusher shell 1 into a sewage chamber 13 and a drying chamber 14 along the axial direction of the filter conveying cylinder 8. A discharge port 15 is provided at the bottom of the other end of the filter conveying cylinder 8, and the feed window 11 is located between the discharge port 15 and the mesh tail plate 10. The squeezed sewage enters the sewage chamber 13. When the extrusion is completed, the auger conveying assembly 9 rotates in the opposite direction to move the squeezed sludge close to the discharge port 15, and the sludge is discharged into the drying chamber 14 through the discharge port 15. This process is repeated to achieve the extrusion separation of the sludge and achieve the effect of solid-liquid separation.

[0024] Embodiment 2

[0025] Based on the first embodiment, Figure 1As shown, a sewage discharge pipe 27 is connected to the bottom of the sewage chamber 13, the bottom of the drying chamber 14 is open, a bottom plate 28 is hinged at the opening of the drying chamber 14, a driving cylinder 29 is arranged below the bottom plate 28, the cylinder body of the driving cylinder 29 is hinged on the mud crusher housing 1, and the telescopic shaft of the driving cylinder 29 is hinged on the bottom plate 28, a heating chamber is arranged between the inner wall and the outer wall of the drying chamber 14, an electric heating wire is arranged in the heating chamber, and a mud receiving tray 30 is arranged below the drying chamber 14, the sludge in the drying chamber 14 is dried by the electric heating wire, and the sludge can also be dried by hot air drying, both methods belong to the prior art, when the drying is completed, the driving cylinder 29 is actuated to drive the bottom plate 28 to deflect downward, so that the dried sludge in the drying chamber 14 falls into the mud receiving tray 30, and then, the driving cylinder 29 drives the bottom plate 28 to reset and the sludge drying operation is performed again.

[0026] Embodiment 3

[0027] Based on the second embodiment, Figure 1 and Figure 2 As shown, the pulverizing shell 2 includes a hollow shell 16, a conical discharge shell 17 and a top plate 18, the top plate 18 is installed on the top of the hollow shell 16 by screws, the bottom fixed sleeve of the hollow shell 16 is provided with an upper flange 19, the large-size end fixed sleeve of the conical discharge shell 17 is provided with a lower flange 31, the lower flange 31 is connected to the upper flange 19 by bolts, the top fixed sleeve of the mud crusher shell 1 is provided with a flange 20, the upper flange 19 is connected to the flange 20 by bolts, the pulverizing spindle 3 is rotatably installed in the hollow shell 16, the top of the top plate 18 is connected to a sludge feed pipe 21, the end of the sludge feed pipe 21 away from the top plate 18 is fixed with a connecting flange 22, an annular mounting platform 23 is fixed in the hollow shell 16, the filter plate 4 is installed at the bottom of the annular mounting platform 23 by screws, the pulverizing shell 2 is detachably installed on the mud crusher shell 1, and the pulverizing shell 2 adopts a split structure, which is detachably connected by the hollow shell 16 and the conical discharge shell 17. It is convenient to remove the filter plate 4 for replacement or cleaning, and avoid clogging of the filter plate 4 affecting the use of the equipment. Specifically, the hollow shell 16 is first removed from the mud crusher shell 1, and then the hollow shell 16 is separated from the conical discharge shell 17. Since the filter plate 4 is installed at the bottom of the annular mounting platform 23, the installation position of the filter plate 4 is exposed, and the filter plate 4 can be removed from the bottom of the hollow shell 16. The operation is simple and convenient for cleaning and replacement of the filter plate 4. Secondly, the crushing blade 5 is connected to the crushing spindle 3 by welding. When the crushing blade 5 is damaged, the top plate 18 is removed, the damaged crushing blade is knocked off, and a new crushing blade 5 is re-welded, so that only the damaged crushing blade 5 can be replaced, reducing the later maintenance cost. Similarly, the sludge feed pipe 21 is connected to the external sludge main pipe through the connecting flange 22 to pass sludge into the crushing shell 2. After the sludge feed pipe 21 is set to a detachable structure, the crushing shell 2 can be smoothly removed.

[0028] Embodiment 4

[0029] Based on the third embodiment, Figure 1 and Figure 3 As shown, a driving window 24 is provided on the side wall of the mud crusher housing 1 where the sliding switching plate 7 is set, and sliding grooves 25 are provided on both inner side walls of the driving window 24. The two ends of the sliding switching plate 7 slide into the two sliding grooves 25 respectively, the top of the sliding switching plate 7 contacts the inner top wall of the driving window 24, and the bottom of the sliding switching plate 7 contacts the inner bottom wall of the driving window 24. A cylinder is installed on the outer wall of the mud crusher housing 1, and the telescopic shaft of the cylinder penetrates into one of the sliding grooves 25 to connect the sliding switching plate 7. The cooperation between the sliding switching plate 7 and the sliding groove 25 enables the sliding switching plate 7 to slide to switch the positions of the two spiral conveying mechanisms, and at the same time close the driving window 24 to prevent sludge from overflowing from the driving window 24. When the position is switched, the cylinder is actuated to push the sliding switching plate 7 to move, and the sliding switching plate 7 drives the two sets of spiral conveying mechanisms to move, so that the feeding windows in the two sets of spiral conveying mechanisms correspond to the mud discharge pipe 6 alternately, so that the crushed sludge can smoothly enter the filtering mechanism for solid-liquid separation.

Claims

1. A sludge treatment device, comprising a sludge crusher housing (1), characterized in that: A crushing mechanism and a filtering mechanism are arranged in sequence from top to bottom in the mud crusher housing (1), the crushing mechanism comprising a crushing shell (2), a crushing spindle (3) and a filter plate (4), the crushing shell (2) being mounted on the mud crusher housing (1) by means of bolts, the crushing spindle (3) being rotatably arranged in the crushing shell (2), a plurality of crushing assemblies being evenly arranged on the crushing spindle (3) along its own circumferential direction, the crushing assemblies comprising a plurality of crushing blades (5), the plurality of crushing blades (5) being arranged at equal intervals along the axial direction of the crushing spindle (3), two adjacent groups of crushing assemblies being staggered along the axial direction of the crushing spindle (3), the filter plate (4) being mounted below the crushing spindle (3), and a mud discharge pipe (6) being connected to the bottom of the crushing shell (2); The filtering mechanism comprises a sliding switching plate (7) and two groups of screw conveying mechanisms, the two groups of screw conveying mechanisms are arranged at intervals in the horizontal direction, the screw conveying mechanism comprises a filtering conveying cylinder (8), an auger conveying assembly (9) and a mesh tail plate (10), the auger conveying assembly (9) is rotatably arranged in the filtering conveying cylinder (8), one axial end of the filtering conveying cylinder (8) is mounted with the mesh tail plate (10), the top of the other end of the filtering conveying cylinder (8) is provided with a feed window (11), the sliding switching plates (7) are arranged at both axial ends of the filtering conveying cylinder (8), the sliding switching plates (7) are slidably mounted on the mud crusher housing (1), the auger shaft in the auger conveying assembly (9) is rotatably connected and penetrated on the sliding switching plate (7), and the feed windows (11) in the two groups of the screw conveying mechanisms are alternately corresponding to the mud discharge pipe (6) through the movement of the sliding switching plate (7).

2. A sludge treatment device according to claim 1, characterized in that: A partition (12) is fixed to the inner bottom of the mud crusher housing (1), and the partition (12) divides the mud crusher housing (1) into a sewage chamber (13) and a drying chamber (14) along the axial direction of the filter conveyor cylinder (8). A discharge port (15) is provided at the bottom of the other end of the filter conveyor cylinder (8), and the feed window (11) is located between the discharge port (15) and the mesh tail plate (10).

3. A sludge treatment device according to claim 1, characterized in that: The pulverizing shell (2) comprises a hollow shell (16), a conical discharge shell (17) and a top plate (18); the top plate (18) is mounted on the top of the hollow shell (16) by means of screws; the bottom fixing sleeve of the hollow shell (16) is provided with an upper flange (19); the large-size end fixing sleeve of the conical discharge shell (17) is provided with a lower flange (31); the lower flange (31) is connected to the upper flange (19) by means of bolts; the top fixing sleeve of the mud crusher housing (1) is provided with a flange (20); the upper flange (19) is connected to the flange (20) by means of bolts; and the pulverizing main shaft (3) is rotatably mounted in the hollow shell (16).

4. A sludge treatment device according to claim 3, characterized in that: A sludge feeding pipe (21) is connected to the top of the top plate (18), and a connecting flange (22) is fixed to one end of the sludge feeding pipe (21) away from the top plate (18).

5. A sludge treatment device according to claim 3, characterized in that: An annular mounting platform (23) is fixed inside the hollow shell (16), and the filter plate (4) is mounted on the bottom of the annular mounting platform (23) by means of screws.

6. A sludge treatment device according to claim 1, characterized in that: The mud crusher housing (1) is provided with a driving window (24) on the side wall where the sliding switching plate (7) is provided, and both inner side walls of the driving window (24) are provided with sliding grooves (25), and the two ends of the sliding switching plate (7) slide into the two sliding grooves (25) respectively, the top of the sliding switching plate (7) contacts the inner top wall of the driving window (24), and the bottom of the sliding switching plate (7) contacts the inner bottom wall of the driving window (24), and the outer wall of the mud crusher housing (1) is installed with a cylinder, and the telescopic shaft of the cylinder penetrates into one of the sliding grooves (25) to connect with the sliding switching plate (7).

7. A sludge treatment device according to claim 6, characterized in that: A conveying motor (26) for driving the auger conveying assembly to rotate is mounted on one of the sliding switching plates (7), and an output shaft of the conveying motor (26) is drivingly connected to the auger shaft.

8. A sludge treatment device according to claim 2, characterized in that: The bottom of the sewage chamber (13) is connected to a sewage discharge pipe (27); the bottom of the drying chamber (14) is open; a bottom plate (28) is hingedly connected to the opening of the drying chamber (14); a driving cylinder (29) is arranged below the bottom plate (28); a cylinder body of the driving cylinder (29) is hingedly connected to the mud crusher housing (1); and a telescopic shaft of the driving cylinder (29) is hingedly connected to the bottom plate (28).

9. A sludge treatment device according to claim 8, characterized in that: A heating chamber is provided between the inner wall and the outer wall of the drying chamber (14), an electric heating wire is provided in the heating chamber, and a mud receiving pan (30) is provided below the drying chamber (14).

Images