A screw stack sludge dewatering machine

Abstract

The utility model discloses a spiral stacking sludge dewatering machine, comprising a sludge filter pressing and forming block a, and also comprising a sedimentation tank, wherein the outer surface of the sedimentation tank is provided with a filter screen port, the interior of the sedimentation tank is vertically fixedly connected with an extrusion and lifting cylinder, the outer surface of one end of the extrusion and lifting cylinder is provided with an opening, and the interior of the extrusion and lifting cylinder is rotatably connected with a spiral stacking rod. The beneficial effect of the utility model is that the spiral stacking rod can lift and extrude the sludge inside the sedimentation tank, and the extruded and dehydrated sludge is input into the extrusion barrel through an output pipe, at which time the hydraulic cylinder is opened to push the piston block to extrude the input sludge into the connected forming groove for forming, and the forming die base is driven to rotate through the forming groove by a second motor, at which time the piston block is disengaged from the extrusion of the sludge, and the extruded sludge filter pressing and forming block is automatically unloaded under the push of the filter press plate to reset, the structure is reasonable, and the sludge dewatering effect and efficiency are better.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge dehydration, in particular to a spiral stacking sludge dehydrator. Background Art

[0002] Sludge dewatering is a sludge treatment method that removes moisture from flowing primary, concentrated or digested sludge and converts it into semi-solid or solid mud blocks. The screw stack sludge dewatering machine can be widely used in municipal sewage treatment projects and water treatment systems in industrial industries such as petrochemicals, light industry, chemical fiber, papermaking, pharmaceuticals, and leather. Actual operation has proved that the screw stack sludge dewatering machine can create considerable economic and social benefits for customers.

[0003] However, the existing screw stack sludge dewatering device has certain drawbacks. The existing sludge dewatering only adopts screw stacking for extrusion dewatering. The dehydrated sludge cannot be subjected to secondary extrusion molding, which makes it inconvenient to discharge the sludge after dehydration, thus affecting the sludge dewatering effect and efficiency. Therefore, a screw stack sludge dewatering machine is urgently needed to solve the above problems. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a screw stacking type sludge dewatering machine, and the utility model is realized through the following technical solutions.

[0005] A screw stacking sludge dewatering machine comprises a sludge filter pressing and forming block a, and also comprises a sedimentation tank, wherein the outer surface of the sedimentation tank is provided with a filter screen port, an extrusion and lifting cylinder is vertically fixedly connected inside the sedimentation tank, an outer surface of one end of the extrusion and lifting cylinder is provided with an opening, a stacking screw is rotatably connected inside the extrusion and lifting cylinder, an output pipe is penetrated and connected to the outer surface of the other end of the extrusion and lifting cylinder, one end of the output pipe is penetrated and connected to an extrusion barrel, a piston block is movably connected inside the extrusion barrel, a second motor is fixedly connected to the outer surface of the extrusion barrel, an output shaft of the second motor is fixedly connected to a rotating rod, one end of the rotating rod is penetrated and connected to a forming die base, and the rotating rod is rotatably connected to the outer surface of the extrusion and lifting cylinder, two forming grooves are symmetrically provided on the top of the forming die base, and a filter press plate is movably connected inside the forming groove.

[0006] Furthermore, the top end of the extrusion lifting cylinder is fixedly connected to a fixing frame, the top of the fixing frame is fixedly connected to a first motor, and the output shaft of the first motor is fixedly connected to the stacking screw.

[0007] Furthermore, a hydraulic cylinder is connected through one end of the extrusion barrel, a telescopic end of the hydraulic cylinder is fixedly connected to the piston block, and an air hole is opened on the outer surface of the extrusion barrel.

[0008] Furthermore, the forming die base is fitted and slid on the extrusion barrel, the forming die base is connected with the extrusion barrel through the forming groove, a drainage hole is opened on the outer surface of the forming die base, and the drainage hole is connected with the forming groove.

[0009] Furthermore, a baffle is fixedly connected to the inner wall of the forming groove, a limiting rod is fixedly connected to the bottom of the filter press plate, the limiting rod and the baffle are movably connected, and one end of the limiting rod is fixedly connected to a spring, which is fixed between the filter press plate and the baffle.

[0010] The beneficial effect of the utility model is that during the operation of the device, first the sludge can be filtered and precipitated through the filter screen port, and then the stacking screw can be driven to rotate by turning on the first motor, so that the stacking screw can lift and squeeze the sludge inside the sedimentation tank, and the squeezed and dehydrated sludge is input into the extrusion barrel through the output pipe. At this time, the hydraulic cylinder is opened to push the piston block to squeeze the input sludge into the connected molding groove for molding, and then the molding die base is driven to rotate through the molding groove by the second motor. At this time, the piston block is separated from the squeezing of the sludge, and the squeezed sludge filter pressing molding block is automatically unloaded under the push of the filter press plate to reset. The structure is reasonable and has better sludge dehydration effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 : A schematic structural diagram of a screw stacking type sludge dewatering machine according to the utility model;

[0013] Figure 2 : A schematic cross-sectional view of the sedimentation tank and the extrusion lifting cylinder of the utility model;

[0014] Figure 3 : Schematic diagram of the connection between the extrusion barrel and the forming die base of the utility model;

[0015] Figure 4 : The utility model Figure 3 A is an enlarged view of the middle image.

[0016] The reference numerals are as follows:

[0017] 1. Sedimentation tank; 11. Filter screen port;

[0018] 2. Extrusion lifting cylinder; 21. Opening; 22. Stacking screw; 23. Output pipe; 24. Fixed frame; 25. First motor;

[0019] 3. Extrusion barrel; 31. Hydraulic cylinder; 32. Piston block;

[0020] 4. Forming die base; 41. Forming groove; 411. Drain hole; 412. Baffle plate; 42. Filter press plate; 421. Limit rod; 422. Spring;

[0021] 5. Second motor; 51. Rotating rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, the utility model has the following specific embodiments.

[0024] Example:

[0025] A screw stacking sludge dewatering machine comprises a sludge filter pressing and forming block a, and also comprises a sedimentation tank 1. The outer surface of the sedimentation tank 1 is provided with a filter screen port 11. An extrusion and lifting cylinder 2 is vertically fixedly connected inside the sedimentation tank 1. An outer surface of one end of the extrusion and lifting cylinder 2 is provided with an opening 21. A stacking screw 22 is rotatably connected inside the extrusion and lifting cylinder 2. An output pipe 23 is penetrated and connected to the outer surface of the other end of the extrusion and lifting cylinder 2. An extrusion barrel 3 is penetrated and connected to one end of the output pipe 23. A piston block 32 is movably connected inside the extrusion barrel 3. A second motor 5 is fixedly connected to the outer surface of the extrusion barrel 3. A rotating rod 51 is fixedly connected to the output shaft of the second motor 5. One end of the rotating rod 51 is penetrated and connected to a forming die base 4. The rotating rod 51 is rotatably connected to the outer surface of the extrusion and lifting cylinder 2. Two forming grooves 41 are symmetrically provided on the top of the forming die base 4. A filter press plate 42 is movably connected inside the forming groove 41.

[0026] By adopting the above technical solution, when using the device, first pour the sludge into the sedimentation tank 1, the sludge can be filtered and precipitated through the filter screen port 11, and then the first motor 25 is turned on to drive the stacking screw 22 to rotate, the stacking screw 22 can lift and squeeze the sludge inside the sedimentation tank 1, and the squeezed and dehydrated sludge is input into the extrusion barrel 3 through the output pipe 23. At this time, the hydraulic cylinder 31 is opened to push the piston block 32 to squeeze the input sludge into the connected molding groove 41 for molding, and then the second motor 5 is used to drive the molding die 4 to rotate through the molding groove 41. At this time, the piston block 32 is separated from the squeezing of the sludge, and the squeezed sludge filter pressing molding block a is automatically unloaded under the push of the filter press plate 42 to reset. The structure is reasonable and has better sludge dehydration effect and efficiency.

[0027] Specifically, the top end of the extrusion lifting cylinder 2 is fixedly connected with a fixing frame 24 , the top of the fixing frame 24 is fixedly connected with a first motor 25 , and the output shaft of the first motor 25 is fixedly connected to the stacking screw 22 .

[0028] By adopting the above technical solution, the first motor 25 can drive the stacking screw 22 to rotate, and the stacking screw 22 can lift and squeeze the sludge inside the sedimentation tank 1 through the extrusion and lifting cylinder 2, so that the extruded and lifted sludge can be output through the output pipe 23.

[0029] Specifically, one end of the extrusion barrel 3 is penetrated and connected with a hydraulic cylinder 31 , the telescopic end of the hydraulic cylinder 31 is fixedly connected to a piston block 32 , and an air hole is opened on the outer surface of the extrusion barrel 3 .

[0030] By adopting the above technical solution, the hydraulic cylinder 31 can push the piston block 32 to move inside the extrusion barrel 3. When the piston block 32 moves to the leftmost end, the piston block 32 closes the outlet end of the output pipe 23. When the piston block 32 moves to the rightmost end, the output pipe 23 can input the sludge into the extrusion barrel 3.

[0031] Specifically, the forming die base 4 slides on the extrusion barrel 3 , and the forming die base 4 is connected with the extrusion barrel 3 through the forming groove 41 . A drainage hole 411 is formed on the outer surface of the forming die base 4 , and the drainage hole 411 is connected with the forming groove 41 .

[0032] By adopting the above technical solution, the molding groove 41 opened in the molding die base 4 can be connected to the extrusion barrel 3, so that the sludge inside the extrusion barrel 3 can be squeezed into the molding groove 41 for molding, and the filtered sewage can be discharged through the drainage hole 411 connected to the molding groove 41.

[0033] Specifically, the inner wall of the forming groove 41 is fixedly connected with a baffle 412, the bottom of the filter press plate 42 is fixedly connected with a limiting rod 421, the limiting rod 421 and the baffle 412 are movably penetrated, and one end of the limiting rod 421 is fixedly connected with a spring 422, and the spring 422 is fixedly connected between the filter press plate 42 and the baffle 412.

[0034] By adopting the above technical solution, the filter press plate 42 slides on the baffle 412 through the connected limit rod 421, and the spring 422 sleeved on the limit rod 421 can automatically reset after the filter press plate 42 is squeezed, so that the sludge can be squeezed into the molding tank 41 for molding, and the sewage produced by the squeezing is filtered and discharged through the filter press plate 42. After the sludge is filtered and formed, the filter press plate 42 automatically resets to push the sludge filter molding block a out of the molding tank 41, which is convenient for automatic material removal.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A screw stack sludge dewatering machine, comprising a sludge filter press forming block a, characterized in that: The invention also comprises a sedimentation tank (1), wherein the outer surface of the sedimentation tank (1) is provided with a filter screen port (11), the interior of the sedimentation tank (1) is vertically fixedly connected with an extrusion and lifting cylinder (2), the outer surface of one end of the extrusion and lifting cylinder (2) is provided with an opening (21), the interior of the extrusion and lifting cylinder (2) is rotatably connected with a stacked screw (22), the outer surface of the other end of the extrusion and lifting cylinder (2) is penetrated with an output pipe (23), one end of the output pipe (23) is penetrated with an extrusion barrel (3), the interior of the extrusion barrel (3) is movably connected with a piston block (32), the outer surface of the extrusion barrel (3) is fixedly connected with a second motor (5), the output shaft of the second motor (5) is fixedly connected with a rotating rod (51), one end of the rotating rod (51) is penetrated with a forming die seat (4), and the rotating rod (51) is rotatably connected to the outer surface of the extrusion and lifting cylinder (2), the top of the forming die seat (4) is symmetrically provided with two forming grooves (41), and the interior of the forming grooves (41) is movably connected with a filter press plate (42).

2. The screw stack sludge dewatering machine according to claim 1, characterized in that: The top end of the extrusion lifting cylinder (2) is fixedly connected to a fixing frame (24), the top of the fixing frame (24) is fixedly connected to a first motor (25), and the output shaft of the first motor (25) is fixedly connected to the stacking screw (22).

3. The screw stack sludge dewatering machine according to claim 1, characterized in that: One end of the extrusion barrel (3) is connected through a hydraulic cylinder (31), the telescopic end of the hydraulic cylinder (31) is fixedly connected to a piston block (32), and an air hole is provided on the outer surface of the extrusion barrel (3).

4. The screw stack sludge dewatering machine according to claim 1, characterized in that: The molding die base (4) slides on the extrusion barrel (3), the molding die base (4) is connected to the extrusion barrel (3) through the molding groove (41), and a drainage hole (411) is provided on the outer surface of the molding die base (4), and the drainage hole (411) is connected to the molding groove (41).

5. The screw stack sludge dewatering machine according to claim 1, characterized in that: The inner wall of the forming groove (41) is fixedly connected with a baffle plate (412); the bottom of the filter press plate (42) is fixedly connected with a limiting rod (421); the limiting rod (421) and the baffle plate (412) are movably interpenetrating; one end of the limiting rod (421) is fixedly connected with a spring (422); the spring (422) is fixedly connected between the filter press plate (42) and the baffle plate (412).

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