Sludge dewatering machine

Abstract

The utility model discloses a sludge dewatering machine, and belongs to the technical field of sludge dewatering. The device mainly comprises a frame body; the dewatering mechanism is mounted at the upper end of the frame body, and the dewatering mechanism is provided with a housing; the cleaning mechanisms are installed on the two sides of the dewatering mechanism, and each cleaning mechanism comprises protection plates installed on the two sides of the housing; the spraying assemblies are installed on the two sides of the housing, and each spraying assembly comprises a water pump installed at the lower end of the frame body; the connecting pipe is fixedly connected with the output end of the water pump; the water pipes are mounted on the two sides of the connecting pipe; the spray head is obliquely arranged on the water pipe; the drain outlet is formed in the lower end of the housing. According to the sludge dewatering machine, by arranging the cleaning mechanism, solid-phase particles gathered on the filter screen holes are cleaned, and the effect of preventing the filter screen holes from being blocked is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sludge dewatering, in particular to a sludge dewatering machine. BACKGROUND

[0002] Sludge refers to a semi-solid or solid substance, which is mainly composed of organic residues, bacterial cells, inorganic particles, colloids and other complex heterogeneous bodies. If the sludge is not properly treated and disposed of, it will directly cause secondary pollution to water bodies and the atmosphere, and pose a serious threat to the ecological environment and human activities.

[0003] Therefore, sludge treatment is necessary. Since the sludge is still in a liquid flow state after being concentrated or digested, it has a large volume and cannot be transported and disposed of. In order to further reduce the moisture content and make the moisture content of the sludge as low as possible, the sludge must be dewatered to reduce the volume of the sludge and facilitate transportation.

[0004] The screw extrusion sludge dewatering machine is a device widely used in the field of sludge treatment. Its working principle is mainly to use the rotation of the screw shaft in the cylindrical shell to press and dewater the sludge.

[0005] For example, the patent with publication number CN203307193U discloses a screw extrusion sludge dewatering machine. This patent connects positive and negative charges to the extrusion screw and filter screen, greatly improving the dewatering efficiency, and also has the characteristics of stable dewatering, low noise and low modification cost

[0006] However, in the actual dewatering process, the sludge contains a large amount of solid particles, especially particles with high viscosity or high hardness. These particles are easy to accumulate on the filter screen and block the filter screen holes. After the filter screen is blocked, the water dewatered cannot be discharged in time, causing serious water accumulation inside the equipment and a significant decrease in dewatering efficiency.

[0007] Therefore, it is necessary to provide a sludge dewatering machine to solve the above problems.

[0008] It should be noted that the above information disclosed in this background section is only used to understand the background technology of the present application concept, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0009] Based on the above problems existing in the prior art, the present application solves the problem of providing a sludge dewatering machine to solve the problem of a large amount of solid particles in the sludge accumulating on the filter screen and blocking the filter screen holes, causing serious water accumulation inside the equipment and a significant decrease in dewatering efficiency.

[0010] The technical solution adopted by the present application to solve its technical problems is a sludge dewatering machine, comprising:

[0011] frame body;

[0012] dehydration mechanism, which is installed on the upper end of the frame body, removes water in sludge through spiral extrusion, and has a cover shell;

[0013] cleaning mechanism, which is installed on both sides of the dehydration mechanism, is used for flushing solid particles in the cover shell, and comprises:

[0014] protective plate, which is installed on both sides of the cover shell;

[0015] spraying assembly, which is installed on both sides of the cover shell, comprises:

[0016] water pump, which is installed on the lower end of the frame body;

[0017] connecting pipe, which is fixedly connected with the output end of the water pump;

[0018] water pipe, which is installed on both sides of the connecting pipe;

[0019] spray head, which is obliquely arranged on the water pipe;

[0020] drainage opening, which is arranged at the lower end of the cover shell.

[0021] Further, the dehydration mechanism comprises a first baffle fixed on one side of the upper end of the frame body, a fixed seat fixedly arranged on the other side of the upper end of the frame body away from the first baffle, and a motor fixedly arranged on one side of the upper end of the frame body.

[0022] A rotating shaft is rotatably arranged between the first baffle and the fixed seat, and the rotating shaft is fixedly connected with the output end of the motor.

[0023] A spiral blade is fixedly arranged on the rotating shaft, the spiral blade is arranged in the shape of a spiral with a spiral angle on the rotating shaft, and the spiral blade maintains a certain pitch.

[0024] A second baffle is fixedly arranged at the end of the upper end of the frame body, the second baffle is provided with a through hole, and a gap is left around the rotating shaft.

[0025] Further, a cover shell is fixedly arranged between the first baffle and the second baffle, the cover shell is arranged in a conical shape, the cover shell is attached to the spiral blade, and a relatively closed pressing cavity is formed between the cover shell and the spiral blade.

[0026] Further, an inlet is arranged at the upper end of the cover shell, and a plurality of small holes are arranged at the lower end of the cover shell.

[0027] Furthermore, a clamping assembly is installed between the second baffle and the fixed base. The clamping assembly includes a mounting plate fixedly disposed between the second baffle and the fixed base, a cylinder fixedly disposed on the mounting plate, and a pressure plate fixedly disposed at the output end of the cylinder.

[0028] Furthermore, the cover has notches at both ends, and the notches have grooves. A handle is fixedly installed at one end of the protective plate, and a blocking plate is slidably installed at the drain outlet.

[0029] The beneficial effects of this application are: the sludge dewatering machine provided by this application, by setting up a cleaning mechanism, cleans the solid particles accumulated on the filter screen holes, thereby achieving the effect of preventing filter screen holes from clogging.

[0030] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1 This is an overall schematic diagram of a sludge dewatering machine according to this application;

[0033] Figure 2 for Figure 1 Explosion diagram of the dehydration mechanism;

[0034] Figure 3 for Figure 2 Schematic diagram of the intermediate clamping assembly;

[0035] Figure 4 for Figure 1 A schematic diagram of the central cleaning agency;

[0036] Figure 5 for Figure 4 Schematic diagram of the central spray assembly;

[0037] Figure 6 This is a schematic diagram of a sewage outlet;

[0038] The following are the labeling elements in the figure:

[0039] 1. Frame; 2. Dewatering mechanism; 4. Cleaning mechanism; 20. Motor; 21. Feed inlet; 22. First baffle; 23. Rotating shaft; 24. Spiral blade; 25. Second baffle; 26. Small hole; 27. Pressing assembly; 273. Mounting plate; 29. ​​Fixing base; 30. Cover; 271. Cylinder; 272. Pressure plate; 40. Protective plate; 41. Handle; 42. Spray assembly; 420. Water pump; 421. Connecting pipe; 422. Water pipe; 423. Spray head; 43. Drain outlet; 44. Baffle plate. Detailed Implementation

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0042] like Figures 1-3 As shown, this application provides a sludge dewatering machine, including a frame 1 and a dewatering mechanism 2 fixedly installed on the upper end of the frame 1. The dewatering mechanism 2 is used to remove water from the sludge by spiral extrusion.

[0043] The dehydration mechanism 2 includes a first baffle 22 fixed on one side of the upper end of the frame 1, and a fixed seat 29 fixed on the other side of the upper end of the frame 1 away from the first baffle 22. A motor 20 is fixed on the side of the upper end of the frame 1 located at the first baffle 22. The motor 20 provides the main power for the dehydrator.

[0044] Meanwhile, a rotating shaft 23 is rotatably provided between the first baffle 22 and the fixed seat 29, and the rotating shaft 23 is fixedly connected to the output end of the motor 20, so that the motor 20 can drive the rotating shaft 23 to rotate between the first baffle 22 and the fixed seat 29.

[0045] Furthermore, a spiral blade 24 is fixedly installed on the rotating shaft 23. The spiral blade 24 is arranged in a spiral shape with a spiral helix angle on the rotating shaft 23 and maintains a certain pitch. When the motor 20 drives the rotating shaft 23 to rotate, the spiral blade 24 also rotates. During the rotation process, the spiral blade 24 will continuously push the sludge from the first end to the end of the dewatering mechanism 2.

[0046] Meanwhile, a second baffle plate 25 is fixedly arranged at the end of the helical blade 24 on the upper end of the frame body 1, and a through hole is formed in the second baffle plate 25 to allow the rotating shaft 23 to pass through, and a gap is formed around the second baffle plate 25 when the rotating shaft 23 passes through, which is used to guide the dewatered sludge out;

[0047] Meanwhile, a cover 30 is fixedly arranged between the first baffle plate 22 and the second baffle plate 25, and the cover 30 is conical, and the cover 30 is in contact with the helical blade 24, so that a relatively closed pressing cavity is formed between the cover 30 and the helical blade 24, which provides a limited extrusion environment for the sludge, so that the sludge has to move along the inner wall of the pressing cavity under the pushing of the helical blade 24;

[0048] Meanwhile, a feeding port 21 is formed in the upper end of the cover 30, which is used to guide the sludge into the dewatering mechanism 2, and a plurality of small holes 26 are formed in the lower end of the cover 30, which are used to discharge the excess water generated during the extrusion process;

[0049] When the sludge needs to be dewatered, the sludge to be treated is first guided into the cover 30 through the feeding port 21, at this time the motor 20 drives the rotating shaft 23 to rotate, and the helical blade 24 also rotates, and in the rotating process, the helical blade 24 constantly pushes the sludge into the pressing cavity;

[0050] The helical blade 24 rotates and advances forward under the driving of the motor 20, and forms relative motion with the inner wall of the pressing cavity, and the sludge moves forward along the pressing cavity under the pushing of the helical blade 24, and the sludge will be subjected to a pushing force of the helical blade 24 and a resistance of the inner wall of the pressing cavity, and the helical blade 24 is arranged in a helical shape with a helix angle on the rotating shaft 23 under the condition of maintaining a certain pitch, so that the sludge is subjected to an extrusion force perpendicular to the advancing direction while advancing forward;

[0051] Under the extrusion action, the water in the sludge is extruded out and discharged through the small holes 26 in the lower end of the cover 30;

[0052] And a pressing assembly 27 is installed between the second baffle plate 25 and the fixed seat 29, which is used for additional pressing operation of the sludge during the dewatering process to improve the dewatering efficiency;

[0053] The pressing assembly 27 includes an installation plate 273 fixedly arranged between the second baffle plate 25 and the fixed seat 29 on the frame body 1, a gas cylinder 271 fixedly arranged on the installation plate 273, and a pressing plate 272 fixedly arranged on the output end of the gas cylinder 271, which is used to adjust the sludge cake with different dewatering degrees;

[0054] The solid material after dewatering treatment continues to move forward under the conveying action of the spiral blade 24 and is finally discharged from the gap of the second baffle 25, while when the air cylinder 271 pushes the pressing plate 272 to continuously approach the gap of the second baffle 25, the extrusion degree is increased at this time, the water in the sludge is squeezed out faster, and the moisture content of the mud cake is lower, and vice versa, when the air cylinder 271 drives the pressing plate 272 to continuously move away from the gap of the second baffle 25, the extrusion degree is smaller, the water in the sludge is squeezed out slower, and the moisture content of the mud cake is higher;

[0055] As shown in Figure 1 and Figures 4-6 In order to prevent a large amount of solid particles contained in the sludge from accumulating and blocking the small holes 26 on the shell 30, so that the discharged water cannot be discharged in time, and further causing serious water accumulation in the equipment and a large decrease in dewatering efficiency, a cleaning mechanism 4 is fixedly arranged on both sides of the dewatering mechanism 2, which is used to flush the solid particles in the shell 30;

[0056] The cleaning mechanism 4 includes a notch opened at both ends of the shell 30, and a sliding groove (not marked in the figure) is opened on the notch, and a protection plate 40 is slidingly arranged on the sliding groove, which is used to ensure that the dewatering mechanism 2 can operate smoothly;

[0057] Meanwhile, one end of the protection plate 40 penetrates the first baffle 22 and is fixedly connected with a handle 41, which is used to facilitate the staff to pull the protection plate 40 along the sliding groove by the handle 41 when the inside of the shell 30 needs to be cleaned, so as to open the notch of the shell 30, and then the inside of the shell 30 can be cleaned (for reference Figure 4 );

[0058] And a spraying assembly 42 is fixedly arranged on both sides of the shell 30, which is used to flush the solid particles in the shell 30 when the machine is stopped, and the spraying assembly 42 includes a water pump 420 fixedly arranged at the lower end of the frame 1, which is used to pump clean water into the spraying assembly 42 for flushing use;

[0059] Meanwhile, a connecting pipe 421 is fixedly arranged at the output end of the water pump 420, and water pipes 422 are fixedly arranged on both sides of the connecting pipe 421, which penetrate the first baffle 22 and are fixedly arranged at the notches on both sides of the shell 30, so as to flush the inside of the shell 30;

[0060] And a spray head 423 is fixedly arranged on the water pipe 422, which is inclinedly arranged on the water pipe 422, so that the spray head 423 can flush the small holes 26 in the shell 30;

[0061] Meanwhile, a dirt outlet 43 is arranged at the lower end of the cover 30 and is located at the front end of the cover 30, and the dirt outlet 43 is used to discharge the solid particles washed by the spray head 423, and a blocking plate 44 is slidably arranged at the dirt outlet 43, and the blocking plate 44 is arranged against the outer side of the cover 30, and when the dirt outlet 43 is not used, the blocking plate 44 is used to close the dirt outlet 43, so as to prevent the leakage of the cover 30, and when the machine needs to be stopped for cleaning, the blocking plate 44 is slid to open the dirt outlet 43 for use;

[0062] It should be noted that when the cover 30 needs to be cleaned, the staff first needs to stop the machine, and then the staff pulls the handle 41 to pull the protection plate 40 to slide along the sliding groove, so as to open the gap of the cover 30, and then the water pump 420 pumps in clean water, and the spray head 423 is used to wash the small holes 26 in the cover 30, so that the solid particles will flow to the dirt outlet 43 along the water flow due to the washing of the spray head 423;

[0063] Finally, the sliding blocking plate 44 is pulled to open the dirt outlet 43 for discharging dirt.

[0064] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and the present application can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sludge dewaterer characterised in that: Include: Frame (1); Dewatering mechanism (2), the dewatering mechanism (2) is installed on the upper end of the frame (1), the dewatering mechanism (2) removes water in sludge by spiral extrusion, the dewatering mechanism (2) has a cover (30); Cleaning mechanism (4), the cleaning mechanism (4) is installed on both sides of the dewatering mechanism (2), the cleaning mechanism (4) is used for flushing solid particles in the cover (30), the cleaning mechanism (4) comprises: Protective plate (40), the protective plate (40) is installed on both sides of the cover (30); Spray assembly (42), the spray assembly (42) is installed on both sides of the cover (30), the spray assembly (42) comprises: Water pump (420), the water pump (420) is installed at the lower end of the frame (1); Connecting pipe (421), the connecting pipe (421) is fixedly connected with the output end of the water pump (420); Water pipe (422), the water pipe (422) is installed on both sides of the connecting pipe (421); Spray head (423), the spray head (423) is obliquely arranged on the water pipe (422); Sewage outlet (43), the sewage outlet (43) is arranged at the lower end of the cover (30).

2. A sludge dewaterer according to claim 1, characterised in that: The dewatering mechanism (2) comprises a first baffle (22) fixed on one side of the upper end of the frame (1), a fixed seat (29) fixedly arranged on the other side of the upper end of the frame (1) away from the first baffle (22), and a motor (20) fixedly arranged on one side of the upper end of the frame (1) located at the first baffle (22); The first baffle (22) and the fixed seat (29) are rotatably arranged with a rotating shaft (23), and the rotating shaft (23) is fixedly connected with the output end of the motor (20); The rotating shaft (23) is fixedly provided with a spiral blade (24), the spiral blade (24) is arranged in a spiral shape with a spiral angle on the rotating shaft (23), and the spiral blade (24) maintains a certain pitch; The second baffle (25) is fixedly arranged at the end of the spiral blade (24) on the upper end of the frame (1), the second baffle (25) is provided with a through hole, and a gap is left around the rotating shaft (23).

3. The sludge dewatering machine according to claim 2, wherein: The first baffle (22) and the second baffle (25) are fixedly provided with a cover (30), the cover (30) is arranged in a conical shape, the cover (30) is attached to the spiral blade (24), and a relatively closed pressing cavity is formed between the cover (30) and the spiral blade (24).

4. A sludge dehydrator according to claim 1, characterised in that: The cover (30) is provided with an inlet (21) at the upper end, and a plurality of small holes (26) are formed at the lower end of the cover (30).

5. A sludge dehydrator according to claim 2, characterised in that: A pressing assembly (27) is installed between the second baffle (25) and the fixed seat (29), the pressing assembly (27) comprises a mounting plate (273) fixedly arranged between the second baffle (25) and the fixed seat (29), a pneumatic cylinder (271) is fixedly arranged on the mounting plate (273), and a pressing plate (272) is fixedly arranged on an output end of the pneumatic cylinder (271).

6. A sludge dehydrator according to claim 1, characterised in that: The cover (30) is provided with a notch at both ends, the notch is provided with a sliding groove, one end of the protection plate (40) is fixedly provided with a handle (41), and the blowdown opening (43) is slidably provided with a blocking plate (44).

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