A circumferential water outlet type sludge dewatering machine

Abstract

The present invention discloses a circumferential water outlet type sludge dewatering machine applied to the field of sludge dewatering. The dewatering machine realizes circumferential dewatering of sludge through the mutual cooperation of a dewatering cylinder and a plunger. Since all surfaces of the dewatering cylinder and the end face of the plunger can discharge water, the dewatering effect can be effectively improved, and the trouble of maintenance and replacement is also saved. The plunger presses the sludge entering the interior of the dewatering cylinder, and a locking mechanism is used to lock the guide sealing sleeve, which can effectively improve the sealing performance and prevent leakage during the dewatering process. In addition, during the dewatering process, a discharging mechanism is used to turn the dewatering cylinder over to automatically discharge the material, saving the trouble of manual auxiliary discharging, thereby effectively improving the working efficiency, realizing efficient dewatering of sludge, effectively saving energy consumption, and realizing automatic discharging after the dewatering is completed.

Description

Technical Field

[0001] The present invention relates to the field of sludge dewatering, and particularly to a circumferential water outlet type sludge dewatering machine. Background Art

[0002] Sludge dewatering is a process of removing water from fluid raw, concentrated or digested sludge, and converting it into a semi-solid or solid sludge cake. After dewatering, the water content of the sludge can be reduced to 55% to 80%, depending on the nature of the sludge and the efficiency of the dewatering equipment.

[0003] Currently, the plate and frame filter press is widely used in the market. Although it is widely used, its dewatering unit has only one water outlet surface, and the dewatering time is very long. Therefore, the dewatering efficiency is low. After dewatering, the sludge cake will stick to the filter cloth and is not easy to fall off. In many cases, manual auxiliary discharging is required. Moreover, the hydraulic cylinder needs to maintain a certain pressure throughout the working process of the filter press, resulting in high energy consumption.

[0004] Therefore, we solve the problem of low dewatering efficiency of the existing plate and frame filter press through this technical solution. Summary of the Invention

[0005] The purpose of the present invention is to improve the existing sludge dewatering equipment. Compared with the prior art, a circumferential water outlet type sludge dewatering machine is provided. The circumferential dewatering of sludge is realized through the mutual cooperation of a dewatering cylinder and a plunger. Since all surfaces of the dewatering cylinder and the end face of the plunger can discharge water, the dewatering effect can be effectively improved, and the trouble of maintenance and replacement is also saved. The plunger presses the sludge entering the interior of the dewatering cylinder, and a locking mechanism is used to lock the guide sealing sleeve, which can effectively improve the sealing performance and prevent leakage during the dewatering process. In addition, during the completion of dewatering, the dewatering cylinder is turned over by a discharging mechanism to perform automatic discharging, saving the trouble of manual auxiliary discharging, thereby effectively improving the working efficiency.

[0006] Efficient dewatering of sludge can be achieved, energy consumption can be effectively saved, and automatic discharging can be realized after dewatering is completed.

[0007] As a further improvement of the present application, a locking mechanism is also installed at the position where the frame is close to the dewatering cylinder. The locking mechanism includes a bracket sleeved outside the frame, and a plurality of auxiliary hydraulic cylinders perpendicular to the dewatering cylinder are fixedly connected to the bracket. The output end of each auxiliary hydraulic cylinder is connected to a set of locking link groups, and a positioning bracket rotatably connected to one end of the locking link group is also fixedly connected to the frame of the frame. A plurality of pressure-bearing seats matching the positioning bracket are also fixedly connected to the side wall of the dewatering cylinder seal ring. After the plunger enters the inside of the dewatering cylinder, the auxiliary hydraulic cylinder is started, and the auxiliary hydraulic cylinder drives the locking link group to press down on the pressure-bearing seat, so as to lock the guide seal sleeve, effectively improving the sealing effect. In this way, the main hydraulic cylinder does not need to consume additional energy to maintain the pressure on the guide seal sleeve, thus effectively saving energy consumption.

[0008] As a further improvement of the present application, the locking link group includes a driving support rod fixedly connected to the output end of the auxiliary hydraulic cylinder and a main support rod rotatably connected to the positioning bracket. A locking support rod is fixedly connected to the lower end of the driving support rod, and the locking support rod is rotatably connected to the main support rod. After the auxiliary hydraulic cylinder is started, the auxiliary hydraulic cylinder drives the locking support rod to rotate downward into the pressure-bearing seat, so as to achieve the effect of locking the guide seal sleeve. In this way, it can effectively prevent sludge from leaking out of the gap of the guide seal sleeve during the dehydration process, and it does not need to consume the pressure of the main hydraulic cylinder.

[0009] As a further improvement of the present application, the plunger seal ring includes a seal ring, and an annular groove is formed on the inner side wall of the seal ring. A sealing gasket is fixedly connected to the side wall of the seal ring facing the annular groove. An adaptive seal adjusting member is also fixedly connected between the inner wall of the annular groove and the inner wall of the sealing gasket. When the locking mechanism locks the guide seal sleeve, the pressure makes the plunger seal ring flatten, and then makes the plunger seal ring closely fit the side wall of the plunger, so as to effectively improve the sealing effect. When the plunger seal ring flattens, the arc-shaped force is squeezed and the bending degree is reduced and extended to both sides. The extension of the arc-shaped force makes the sealing gasket further closely fit the side wall of the plunger, so as to effectively improve the sealing effect, and the better the sealing effect with the greater the pressure, thus realizing self-adaptive sealing.

[0010] As another improvement of the present application, the adaptive seal adjusting member includes two top blocks respectively fixedly connected to the inner wall of the annular groove and the inner wall of the sealing gasket, and an arc-shaped force is fixedly connected between the two top blocks. Due to the extrusion effect, the arc-shaped force extends and deforms to both sides. The deformation of the arc-shaped force makes the top block squeeze the sealing gasket against the side wall of the plunger, so as to further effectively improve the sealing effect and prevent muddy water from leaking out between the guide seal sleeve and the plunger during the dehydration process.

[0011] As another improvement of the present application, the gasket is made of friction-resistant rubber material, and the arc-shaped force application is made of polyurethane elastic material. Since friction occurs between the plunger and the gasket during the forward and backward movement of the plunger, the gasket is made of friction-resistant rubber material. In order to maintain sufficient elasticity and have a certain compressive effect, the arc-shaped force application is made of polyurethane elastic material.

[0012] Compared with the prior art, the advantages of the present invention are as follows:

[0013] (1) In this solution, the circumferential dehydration of sludge is realized through the mutual cooperation of the dehydration cylinder and the plunger. Since all surfaces of the dehydration cylinder and the end face of the plunger can discharge water, the dehydration effect can be effectively improved, and the trouble of maintenance and replacement is also saved. The plunger presses the sludge entering the interior of the dehydration cylinder, and the locking mechanism is used to lock the guide seal sleeve, which can effectively improve the sealing performance and prevent leakage during the dehydration process. In addition, after the dehydration is completed, the dehydration cylinder is turned over by the discharging mechanism to perform automatic discharging, saving the trouble of manual-assisted discharging, thereby effectively improving the working efficiency, realizing the high-efficiency dehydration of sludge, effectively saving energy consumption, and realizing automatic discharging after the dehydration is completed.

[0014] (2) A locking mechanism is also installed at the position of the frame close to the dehydration cylinder. The locking mechanism includes a bracket sleeved outside the frame, and a plurality of auxiliary hydraulic cylinders perpendicular to the dehydration cylinder are fixedly connected to the bracket. The output end of each auxiliary hydraulic cylinder is connected to a set of locking connecting rod groups, and a positioning bracket rotatably connected to one end of the locking connecting rod group is also fixedly connected to the frame of the frame. A plurality of pressure-bearing seats matching the positioning bracket are also fixedly connected to the side wall of the dehydration cylinder seal ring. After the plunger enters the interior of the dehydration cylinder, the auxiliary hydraulic cylinder is started, and the auxiliary hydraulic cylinder drives the locking connecting rod group to press on the pressure-bearing seat to lock the guide seal sleeve, effectively improving the sealing effect. In this way, the main hydraulic cylinder does not need to consume additional energy to maintain the pressure on the guide seal sleeve, thereby effectively saving energy consumption.

[0015] (3) The locking connecting rod group includes a driving support rod fixedly connected to the output end of the auxiliary hydraulic cylinder and a main support rod rotatably connected to the positioning bracket. The lower end of the driving support rod is fixedly connected with a locking support rod, and the locking support rod is rotatably connected with the main support rod. After the auxiliary hydraulic cylinder is started, the auxiliary hydraulic cylinder drives the locking support rod to rotate downward into the pressure-bearing seat, so as to achieve the effect of locking the guide seal sleeve. In this way, it can effectively prevent sludge from leaking out from the gap of the guide seal sleeve during the dehydration process, and it does not need to consume the pressure of the main hydraulic cylinder.

[0016] (4) The plunger seal ring includes a seal ring. An annular groove is formed in the inner side wall of the seal ring. A gasket is fixedly connected to the side wall of the seal ring facing the annular groove. An adaptive seal adjusting member is also fixedly connected between the inner wall of the annular groove and the inner wall of the gasket. When the locking mechanism locks the guiding seal sleeve, the pressure causes the plunger seal ring to become flattened, and then makes the plunger seal ring closely fit against the side wall of the plunger, thereby effectively improving the sealing effect. When the plunger seal ring becomes flattened, the arc-shaped force is squeezed and its curvature is reduced and it expands to both sides. The expansion of the arc-shaped force makes the gasket further closely fit against the side wall of the plunger, thus effectively improving the sealing effect, and the greater the pressure, the better the sealing effect, thereby achieving self-adaptive sealing.

[0017] (5) The adaptive seal adjusting member includes two top blocks respectively fixedly connected to the inner wall of the annular groove and the inner wall of the gasket. An arc-shaped force is fixedly connected between the two top blocks. Due to the squeezing effect, the arc-shaped force extends and deforms to both sides. The deformation of the arc-shaped force causes the top blocks to squeeze the gasket against the side wall of the plunger, thereby further effectively improving the sealing effect and preventing muddy water from leaking between the guiding seal sleeve and the plunger during the dehydration process.

[0018] (6) The gasket is made of friction-resistant rubber material, and the arc-shaped force is made of polyurethane elastic material. Since friction occurs between the plunger and the gasket during the forward and backward movement of the plunger, the gasket is made of friction-resistant rubber material. In order to maintain sufficient elasticity and have a certain compressive effect, the arc-shaped force is made of polyurethane elastic material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of the present invention;

[0020] Figure 2 is a state diagram of the present invention during dehydration;

[0021] Figure 3 is a state diagram of the present invention during discharging;

[0022] Figure 4 is a sectional view of the present invention when the plunger enters the inside of the dehydration cylinder;

[0023] Figure 5 is a position relationship diagram of the plunger, guiding seal sleeve and rack of the present invention;

[0024] Figure 6 is a three-dimensional view of the plunger of the present invention;

[0025] Figure 7 is a connection relationship diagram of the guiding seal sleeve and rack of the present invention;

[0026] Figure 8 is a three-dimensional view of the dehydration cylinder of the present invention;

[0027] Figure 9 is the exploded perspective view of the plunger of the present invention;

[0028] Figure 10 is the perspective view of the guiding and sealing sleeve of the present invention;

[0029] Figure 11 is the front sectional view of the plunger sealing ring of the present invention;

[0030] Figure 12 is the top sectional view of the plunger sealing ring of the present invention;

[0031] Figure 13 is the perspective view of the locking connecting rod group of the present invention.

[0032] Explanation of the reference numerals in the figure:

[0033] 1 Frame, 101 End plate, 2 Main hydraulic cylinder, 3 Mud inlet pipe, 4 Slide rail, 5 Dewatering cylinder, 501 Multi-filter hole cylinder, 502 Mud inlet, 503 Gasket, 504 Shaft, 6 Universal coupling, 7 Rotating support, 8 V-shaped support, 9 Plunger, 901 Cylinder, 902 Filter plate, 903 Sealing plate, 904 Pressing column, 905 Bearing foot, 906 Linking wing plate, 10 Support frame, 11 Guiding and sealing sleeve, 1101 Dewatering cylinder sealing ring, 1102 Plunger sealing ring, 1103 Gasket, 1104 Bearing shaft, 1105 Guiding wing, 1106 Bearing seat, 12 Scraping frame, 1201 Mounting ring, 1202 Connecting rod, 1203 Scraping ring, 13 Locking mechanism, 1301 Bracket, 1302 Sub hydraulic cylinder, 1303 Locking connecting rod group, 1304 Positioning frame, 14 Guiding slide bar, 15 Sealing ring, 16 Annular groove, 17 Sealing gasket, 18 Adaptive seal adjusting member, 1801 Top block, 1802 Arc-shaped force adding member, 19 Discharging mechanism, 20 Driving support rod, 21 Main support rod, 22 Locking support rod. Detailed implementation manners

[0034] The embodiments will describe the technical solutions of the present invention clearly and completely in conjunction with the accompanying drawings of the specification. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0035] A circumferential water outlet type sludge dewatering machine. Please refer to the figure. It includes a frame 1. End plates 101 are fixedly connected to both the front and rear ends of the frame 1. A main hydraulic cylinder 2 is installed at the rear end of the frame 1. The front end of the frame 1 is fixedly connected with an end plate 101, and a sludge inlet pipe 3 is fixedly inserted on the end plate 101. A set of symmetrically distributed slide rails 4 are fixedly connected to the position of the frame 1 near the front end. A dewatering cylinder 5 is erected at the position of the frame 1 near the front end. The dewatering cylinder 5 includes a multi-filter hole cylinder 501, and a sludge inlet 502 is opened on the end face of the multi-filter hole cylinder 501 facing the sludge inlet pipe 3. Multiple concentric washers 503 are fixedly connected to the end face of the multi-filter hole cylinder 501 facing the end plate 101. Axes 504 are fixedly connected to both side walls of the multi-filter hole cylinder 501;

[0036] A discharging mechanism 19 is installed on the ground on one side of the frame 1. The discharging mechanism 19 is composed of a driving motor and a speed reducer (the specific connection structure and working principle are well-known technologies for those skilled in the relevant field, and the specific model is selected according to actual needs and will not be described in detail here). The output end of the speed reducer is connected with a universal coupling 6. Rotating supports 7 are slidably connected to the positions of the slide rails 4 facing both side walls of the dewatering cylinder 5. The axis 504 passes through the rotating support 7 and is connected with the universal coupling 6. Two groups of V-shaped supports 8 are slidably connected to the rear end of the slide rails 4 where the dewatering cylinder 5 is located, and a plunger 9 is erected between the two groups of V-shaped supports 8. A support frame 10 is fixedly connected between the two V-shaped supports 8 at the rear group. The plunger 9 includes a cylinder 901, and a water outlet is opened on the side wall of the cylinder 901. A filter plate 902 is fixedly connected to the front end face of the cylinder 901, and a sealing plate 903 is fixedly connected to the rear end face of the cylinder 901. Pressure-bearing feet 905 are fixedly connected to the inner wall of the filter plate 902, and a pressure-applying column 904 is fixedly connected to the middle side wall of the pressure-bearing feet 905. The pressure-applying column 904 passes through the side wall of the sealing plate 903 and is erected on the support frame 10, and the pressure-applying column 904 is connected with the output end of the main hydraulic cylinder 2. Multiple equally spaced and circumferentially distributed linkage wing plates 906 are fixedly connected to the side wall of the sealing plate 903;

[0037] A guiding and sealing sleeve 11 is sleeved on the front end face of the plunger 9. The guiding and sealing sleeve 11 includes a dehydration cylinder sealing ring 1101 (preferably made of rubber, and other materials can also be selected according to actual requirements). A plunger sealing ring 1102 is fixedly connected to the rear end face of the dehydration cylinder sealing ring 1101. The plunger sealing ring 1102 includes a sealing ring 15, and an annular groove 16 is formed in the inner side wall of the sealing ring 15. A sealing gasket 17 is fixedly connected to the side wall of the sealing ring 15 facing the annular groove 16. An adaptive sealing adjustment member 18 is also fixedly connected between the inner wall of the annular groove 16 and the inner wall of the sealing gasket 17. When the locking mechanism 13 locks the guiding and sealing sleeve 11, the pressure causes the plunger sealing ring 1102 to become flattened, and then the plunger sealing ring 1102 closely fits against the side wall of the plunger 9, thereby effectively improving the sealing effect. When the plunger sealing ring 1102 becomes flattened, the arc-shaped force 1802 is squeezed and its curvature decreases and expands to both sides. The expansion of the arc-shaped force 1802 causes the sealing gasket 17 to further closely fit against the side wall of the plunger 9, thereby effectively improving the sealing effect, and the greater the pressure, the better the sealing effect, thus achieving self-adaptive sealing;

[0038] The adaptive sealing adjustment member 18 includes two top blocks 1801 respectively fixedly connected to the inner wall of the annular groove 16 and the inner wall of the sealing gasket 17, and an arc-shaped force 1802 is fixedly connected between the two top blocks 1801. Due to the squeezing effect, the arc-shaped force 1802 extends and expands and deforms to both sides. The deformation of the arc-shaped force 1802 causes the top blocks 1801 to squeeze the sealing gasket 17 against the side wall of the plunger 9, thereby further effectively improving the sealing effect and preventing muddy water from leaking out between the guiding and sealing sleeve 11 and the plunger 9 during the dehydration process. The sealing gasket 17 is made of wear-resistant rubber material, and the arc-shaped force 1802 is made of polyurethane elastic material. Since friction occurs between the plunger 9 and the sealing gasket 17 during the forward and backward movement of the plunger 9, the sealing gasket 17 is made of wear-resistant rubber material. In order to maintain sufficient elasticity and have a certain compressive effect, the arc-shaped force 1802 is made of polyurethane elastic material;

[0039] A gasket 1103 is fixedly connected to the rear end face of the plunger sealing ring 1102. Bearing shafts 1104 are fixedly connected to both side walls of the dehydration cylinder sealing ring 1101, and the bearing shafts 1104 are mounted on the V-shaped supports 8 of the front group. A plurality of guiding fins 1105 are fixedly connected to the side wall of the plunger sealing ring 1102 and are evenly distributed in a circumferential manner at equal intervals. A guiding slide bar 14 is fixedly connected to the guiding fins 1105. The guiding fins 1105 correspond to the linkage wing plates 906 one by one, and the guiding slide bar 14 penetrates through the linkage wing plates 906 and is slidably connected thereto;

[0040] A scraper frame 12 is fixedly connected to the front end face of the dehydration cylinder sealing ring 1101. The scraper frame 12 includes a mounting ring 1201 fixedly connected to the front end face of the guiding seal sleeve 11. A plurality of connecting rods 1202 are fixedly connected to the end face of the mounting ring 1201 and are distributed in an equidistant and circumferential manner. One ends of the plurality of connecting rods 1202 away from the mounting ring 1201 are fixedly connected to a scraping ring 1203 at the same time.

[0041] On the basis of Embodiment 1, referring to the figure, a locking mechanism 13 is further installed at a position of the frame 1 close to the dehydration cylinder 5. The locking mechanism 13 includes a bracket 1301 sleeved outside the frame 1. A plurality of auxiliary hydraulic cylinders 1302 perpendicular to the dehydration cylinder 5 are fixedly connected to the bracket 1301. The output end of each auxiliary hydraulic cylinder 1302 is connected to a set of locking link groups 1303. A positioning frame 1304 rotatably connected to one end of the locking link groups 1303 is also fixedly connected to the frame of the frame 1. A plurality of pressure-bearing seats 1106 matching the positioning frame 1304 are fixedly connected to the side wall of the dehydration cylinder sealing ring 1101. After the plunger 9 enters the dehydration cylinder 5, the auxiliary hydraulic cylinders 1302 are started, and the auxiliary hydraulic cylinders 1302 drive the locking link groups 1303 to press down on the pressure-bearing seats 1106, so as to lock the guiding seal sleeve 11, effectively improving the sealing effect. In this way, the main hydraulic cylinder 2 does not need to consume additional energy to maintain the pressure on the guiding seal sleeve 11, thus effectively saving energy consumption;

[0042] The locking link group 1303 includes a driving support rod 20 fixedly connected to the output end of the auxiliary hydraulic cylinder 1302 and a main support rod 21 rotatably connected to the positioning frame 1304. A locking support rod 22 is fixedly connected to the lower end of the driving support rod 20, and the locking support rod 22 is rotatably connected to the main support rod 21. After the auxiliary hydraulic cylinder 1302 is started, the auxiliary hydraulic cylinder 1302 drives the locking support rod 22 to rotate downward into the pressure-bearing seat 1106, so as to lock the guiding seal sleeve 11, effectively preventing sludge from leaking out from the gap of the guiding seal sleeve 11 during the dehydration process, and also not consuming the pressure of the main hydraulic cylinder 2.

[0043] The working principle of this solution is as follows: Before starting work, the front end faces of the guiding seal sleeve 11 and the plunger 9 are flush. When starting work, the piston rod of the main hydraulic cylinder 2 extends outwards to push the plunger 9 to move forward. When the linkage wing plate 906 touches the rear end face of the guiding seal sleeve 11, the plunger 9 drives the guiding seal sleeve 11 and the scraper frame 12 to move forward together. When the plunger 9, the guiding seal sleeve 11, and the scraper frame 12 touch the dewatering cylinder 5, the four move towards the end plate 101 together. When the front end face of the dewatering cylinder 5 touches the end plate 101, the main hydraulic cylinder 2 stops working. At this time, the scraper frame 12 completely enters the dewatering cylinder 5. Then, the auxiliary hydraulic cylinder 1302 is started. The auxiliary hydraulic cylinder 1302 drives the driving support rod 20 to descend. The driving support rod 20 drives the locking support rod 22 to rotate downwards into the pressure bearing seat 1106. In this way, the locking pressure can press the sealing ring on the front end face of the guiding seal sleeve 11 and the rear end face of the dewatering cylinder 5 tightly, thereby achieving sealing. Then, the material to be dewatered is conveyed through the mud inlet pipe into the space formed by the dewatering cylinder 5, the plunger 9, and the guiding seal sleeve 11. After feeding, the main hydraulic cylinder 2 is started to continue extending the piston rod, so as to push the plunger 9 to move forward to press the material. The squeezed water is discharged through the filter holes on the multi-filter hole cylinder 501 and the filter holes on the filter plate 902. The water entering the inside of the cylinder 901 is discharged through the water outlet on the side wall. After the dewatering is completed, the auxiliary hydraulic cylinder 1302 is started to move upwards again to release the seal between the guiding seal sleeve 11, the dewatering cylinder 5, and the plunger 9. The piston rod of the main hydraulic cylinder 2 retracts, pulling the guiding seal sleeve 11, the plunger 9, and the scraper frame 12 to retreat. During the retreat process, the scraper frame 12 scatters the dehydrated material attached to the inner wall of the multi-filter hole cylinder 501. The piston rod of the main hydraulic cylinder 2 stops when it is completely retracted. At this time, the front end faces of the guiding seal sleeve 11 and the plunger 9 are in a flush state. The discharging mechanism 19 is started to drive the dewatering cylinder 5 to rotate 90° by the universal coupling 6. The scattered dehydrated material in the dewatering cylinder 5 is automatically discharged under the action of gravity. Finally, the dewatering cylinder 5 is rotated back to the original state.

[0044] The above is only the best implementation mode adopted by the present invention in combination with the current actual requirements, but the protection scope of the present invention is not limited thereto.

Claims

1. A circumferential water discharge type sludge dewatering machine, comprising a frame (1), wherein both front and rear ends of the frame (1) are fixedly connected to end plates (101), characterized in that: A main hydraulic cylinder (2) is installed at the rear end of the frame (1); an end plate (101) is fixedly connected to the front end of the frame (1); a mud inlet pipe (3) is fixedly inserted on the end plate (101); a group of symmetrically distributed slide rails (4) are fixedly connected to the front end of the frame (1); a dewatering cylinder (5) is mounted on the front end of the frame (1); the dewatering cylinder (5) comprises a multi-pore cylinder (501); a mud inlet port (502) is provided on the end surface of the multi-pore cylinder (501) facing the mud inlet pipe (3); a plurality of concentric washers (503) are fixedly connected to the end surface of the multi-pore cylinder (501) facing the end plate (101); and shafts (504) are fixedly connected to both side walls of the multi-pore cylinder (501); A discharge mechanism (19) is installed on the ground at one side of the frame (1), the discharge mechanism (19) is composed of a drive motor and a reducer, and the output end of the reducer is connected to a universal coupling (6), the slide rail (4) is slidably connected to a rotating support (7) at a position directly opposite to the side walls of the dehydration cylinder (5), and the shaft (504) passes through the rotating support (7) and is connected to the universal coupling (6), the slide rail (4) is slidably connected to two groups of V-shaped supports (8) at the rear end of the dehydration cylinder (5), and a plunger (9) is arranged between the two groups of V-shaped supports (8), and a support frame (10) is fixedly connected between the two V-shaped supports (8) of the rear group, and the plunger (9) includes a plurality of support frames (11) and a plurality of support frames (12) arranged between the plurality of V-shaped supports (8). A cylinder (901) is enclosed, and a water outlet is provided on the side wall of the cylinder (901); a filter plate (902) is fixedly connected to the front end face of the cylinder (901), and a sealing plate (903) is fixedly connected to the rear end face of the cylinder (901); a pressure foot (905) is fixedly connected to the inner wall of the filter plate (902), and a pressure column (904) is fixedly connected to the middle side wall of the pressure foot (905); the pressure column (904) penetrates the side wall of the sealing plate (903) and is supported on the support frame (10); the pressure column (904) is connected to the output end of the main hydraulic cylinder (2); and a plurality of linkage wing plates (906) that are equally spaced and distributed around the side wall of the sealing plate (903) are fixedly connected to the side wall of the sealing plate (903); A guide sealing sleeve (11) is sleeved on the front end surface of the plunger (9), the guide sealing sleeve (111) comprises a dehydration cylinder sealing ring (1101), and a plunger sealing ring (1102) is fixedly connected to the rear end surface of the dehydration cylinder sealing ring (1101), and a gasket (1103) is fixedly connected to the rear end surface of the plunger sealing ring (1102), and the side walls on both sides of the dehydration cylinder sealing ring (1101) are fixedly connected to a bearing shaft (1104), and the bearing shaft (1104) is mounted on the V-shaped support (8) of the front group, and the side walls of the plunger sealing ring (1102) are fixedly connected to a plurality of guide fins (1105) distributed around at equal intervals, and the guide fins (1105) are fixedly connected to guide slide bars (14), the guide fins (1105) correspond to the linkage wing plates (906) one by one, and the guide slide bars (14) penetrate the linkage wing plates (906) and are slidably connected thereto; A rowing frame (12) is fixedly connected to the front end surface of the dehydration cylinder sealing ring (1101), and the rowing frame (12) includes a mounting ring (1201) fixedly connected to the front end surface of the guide sealing sleeve (11), and a plurality of connecting rods (1202) distributed around the mounting ring (1201) are fixedly connected to the end surface of the mounting ring (1201), and a scraper ring (1203) is fixedly connected to one end of the plurality of connecting rods (1202) away from the mounting ring (1201).

2. A circumferential water discharge type sludge dewatering machine according to claim 1, characterized in that: A locking mechanism (13) is also installed at a position of the frame (1) near the dehydration cylinder (5), and the locking mechanism (13) comprises a bracket (1301) sleeved on the outside of the frame (1), and a plurality of auxiliary hydraulic cylinders (1302) perpendicular to the dehydration cylinder (5) are fixedly connected to the bracket (1301), and the output end of each auxiliary hydraulic cylinder (1302) is connected to a group of locking connecting rod groups (1303), and a positioning frame (1304) rotatably connected to one end of the locking connecting rod group (1303) is also fixedly connected to the frame of the frame (1), and a plurality of pressure seats (1106) matching the positioning frame (1304) are also fixedly connected to the side wall of the dehydration cylinder sealing ring (1101).

3. A circumferential water discharge type sludge dewatering machine according to claim 2, characterized in that: The locking connecting rod assembly (1303) comprises a driving support rod (20) fixedly connected to the output end of the auxiliary hydraulic cylinder (1302) and a main support rod (21) rotatably connected to the positioning frame (1304); a locking support rod (22) is fixedly connected to the lower end of the driving support rod (20), and the locking support rod (22) is rotatably connected to the main support rod (21).

4. The circumferential water discharge type sludge dewatering machine according to claim 1, characterized in that: The plunger sealing ring (1102) comprises a sealing ring (15), and an annular groove (16) is formed on the inner side wall of the sealing ring (15); a sealing gasket (17) is fixedly connected to the side wall of the sealing ring (15) facing the annular groove (16); and an adaptive sealing adjustment member (18) is also fixedly connected between the inner wall of the annular groove (16) and the inner wall of the sealing gasket (17).

5. The circumferential water discharge type sludge dewatering machine according to claim 4, characterized in that: The adaptive sealing adjustment member (18) comprises two top blocks (1801) respectively fixedly connected to the inner wall of the annular groove (16) and the inner wall of the sealing gasket (17), and an arc-shaped force application (1802) is fixedly connected between the two top blocks (1801).

6. The circumferential water discharge type sludge dewatering machine according to claim 5, characterized in that: The sealing pad (17) is made of a friction-resistant rubber material, and the arc-shaped force adding element (1802) is made of a polyurethane elastic material.

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