Sludge dewatering equipment for hydraulic engineering construction

Abstract

The invention discloses sludge dewatering equipment for hydraulic engineering construction, and belongs to the technical field of sludge treatment equipment, the sludge dewatering equipment comprises a base and a box body fixed on the base, and further comprises a sludge-water separation mechanism, a sludge-water separation mechanism, a sludge-water separation mechanism, a sludge-water separation mechanism, a sludge-water separation mechanism and a sludge-water separation mechanism, and an output shaft of the first motor is in transmission connection with the rotary separation assembly. In the working state, the conveying pipeline and the spiral conveying component are kept in a relatively static state, when the rotary separation assembly and the spiral conveying component are cleaned, the fluid channel and the drainage hole are controlled to be in an overlapped state, the interior of the rotary separation assembly is cleaned through high-pressure water flow provided by the pressurizing unit, so that sludge residues are reduced, and the cleaning efficiency is improved. The manual intervention is reduced in the process, so that the shutdown maintenance time is shortened, and the problem that the operation efficiency is reduced due to shutdown cleaning is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment equipment, in particular to sludge dewatering equipment for water conservancy project construction. Background Art

[0002] In the construction of water conservancy projects, sludge dewatering is a key link in wastewater treatment and resource utilization. In the existing technology, drum-type centrifugal dewatering equipment is widely used due to its efficient separation ability. This type of equipment achieves sludge dewatering through the synergistic effect of the drum and the internal spiral blades: when the drum rotates, the sludge is separated into solid and liquid under the action of centrifugal force, and the spiral blades push the dehydrated solid sludge to the slag discharge port through differential rotation. This type of equipment can usually operate continuously and adapt to the treatment needs of high-water content sludge. It has become a mainstream technical solution in water conservancy projects, sewage treatment plants and other scenarios.

[0003] However, existing rotary drum dewatering equipment still has significant defects, especially the cleaning problem of the spiral blades and the drum structure. Since the spiral blades are usually installed inside the drum, after long-term operation, sludge is easy to remain on the blade surface and the inner wall of the drum. This kind of sludge not only reduces the dewatering efficiency, but also causes the equipment to vibrate more and even blockage failure. Although a large number of mesh holes are set on the drum, the cleaning effect from the outside through the mesh holes to the inside is poor because there is a large resistance in the mesh holes and there are many difficult-to-clean areas inside. Therefore, for small equipment, the traditional cleaning method requires stopping the machine, flushing water into the inside through external equipment for cleaning, or manually disassembling the spiral blades for cleaning. The operation process is cumbersome and time-consuming, which seriously affects the continuous operation efficiency of the project.

[0004] Therefore, we proposed a sludge dewatering equipment for water conservancy project construction in order to solve the above problems.

[0005] The above information disclosed in this background technology is only used to increase the understanding of the background technology of the present invention and therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Summary of the invention

[0006] The purpose of the present invention is to provide a sludge dewatering equipment for water conservancy project construction, so as to solve the problem that the conventional shutdown and cleaning operation process of the prior art mentioned in the above background technology is cumbersome and time-consuming, which seriously affects the continuous operation efficiency of the project.

[0007] To achieve the above object, the present invention provides a sludge dewatering device for water conservancy project construction, comprising a base and a box body fixed on the base, and also comprising:

[0008] The mud-water separation mechanism comprises a first motor disposed on the housing and a rotating separation assembly disposed in the housing, wherein the output shaft of the first motor is drivingly connected to the rotating separation assembly;

[0009] A feeding assembly, fixedly installed in the box body, communicated with the rotating separation assembly, and used for conveying sludge to the rotating separation assembly;

[0010] The spiral conveying assembly comprises a second motor and a spiral conveying member disposed in the rotating separation assembly and connected to the second motor by transmission, wherein the surface of the spiral conveying member is provided with a drainage hole, and the drainage hole and the spiral blade of the spiral conveying member are staggered;

[0011] The cleaning assembly includes a third motor, a delivery pipeline inserted in the spiral delivery member, and a pressurizing unit fixed on the box body, wherein a fluid channel is provided on the delivery pipeline, an output shaft of the third motor is transmission-connected with the delivery pipeline and is used to control the alignment state of the fluid channel and the drain hole, one end of the delivery pipeline is connected with the pressurizing unit, and the other end extends to the outside of the box body;

[0012] The control end electrically connected to the first motor, the second motor, the third motor and the pressurizing unit is fixedly mounted on the box body.

[0013] Preferably, the box body includes a main working box and a sub-working box connected to the main working box, and the mud outlet of the rotating separation assembly extends into the sub-working box.

[0014] Preferably, the rotating separation assembly includes a fixed bracket installed in the main working box, a cylinder rotatably connected to the fixed bracket, and a first gear arranged at both ends of the cylinder, and the output shaft of the first motor is fixed with a second gear meshing with the first gear.

[0015] Preferably, the feed assembly includes a sleeve coaxially connected to the cylinder, and a feed port arranged at the top of the sleeve, and a sludge conveying channel is formed between the sleeve and the rotary separation assembly.

[0016] Preferably, the spiral conveying member includes a hollow shaft body rotatably connected in the cylinder, one end of which extends outside the main working box and is provided with a third gear; the output shaft of the second motor is provided with a fourth gear meshing with the third gear.

[0017] Preferably, the conveying pipeline comprises a hollow shaft penetrating the spiral conveying member, and both ends of the hollow shaft are rotatably connected with a water inlet pipe and a water outlet pipe, and a control valve is arranged on the water outlet pipe;

[0018] A fifth gear is fixed to the end of the hollow shaft, and a sixth gear meshing with the fifth gear is fixed to the output shaft of the third motor.

[0019] Preferably, the pressurizing unit comprises an outer box, in which a pressurizing pump is arranged, an input end of the pressurizing unit is fixedly mounted with a water inlet pipe, and an output end is fixed to the water inlet pipe.

[0020] Preferably, the end of the cylinder facing the auxiliary working box is a conical structure, and the shape of the spiral blades in the hollow shaft body is adapted to the shape of the cylinder.

[0021] Preferably, a material receiving box is also provided on the base and is located below the cylinder outlet.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The present invention realizes the sludge dewatering process through the cooperation of the mud-water separation mechanism and the spiral conveying component. In the desludging process, the drainage hole and the fluid channel are in a dislocated state. In the working state, the conveying pipeline and the spiral conveying component are kept in a relatively static state. When the rotating separation component and the spiral conveying component are cleaned, the fluid channel and the drainage hole are controlled to be in an overlapping state. The inside of the rotating separation component is cleaned by the high-pressure water flow provided by the pressurizing unit to reduce the residual sludge. This process reduces manual intervention, thereby reducing the time of downtime for maintenance and avoiding the problem of reduced operating efficiency caused by downtime for cleaning.

[0024] (2) The present invention sets the end of the cylinder as a conical structure. After the sludge is dehydrated, it is squeezed when it is separated from the cylinder and discharged after being squeezed, thereby further reducing the water content in the sludge and improving the dehydration effect.

[0025] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0028] Figure 3 for Figure 1 Front view of

[0029] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0030] Figure 5 It is a structural schematic diagram of the rotary separation component, the spiral conveying component and the conveying pipeline of the present invention;

[0031] Figure 6 It is a schematic diagram of the state when the drainage hole and the fluid channel of the present invention are aligned;

[0032] Figure 7 It is a structural schematic diagram of the delivery pipeline of the present invention;

[0033] Figure 8 It is a schematic diagram of the internal structure of the pressurizing unit of the present invention;

[0034] Fig. 9 Schematic diagram of the shape of the hollow shaft and spiral blades of Example 2 of the present invention.

[0035] In the figure: 1. base; 2. box; 3. mud-water separation mechanism; 4. feeding assembly; 5. spiral conveying assembly; 6. cleaning assembly; 7. control end; 8. receiving box;

[0036] 21. Main working box; 22. Auxiliary working box;

[0037] 31. first motor; 32. rotating separation assembly;

[0038] 321, fixed bracket; 322, cylinder; 323, first gear; 324, second gear;

[0039] 41. sleeve; 42. feed port;

[0040] 51. second motor; 52. spiral conveying member; 53. drainage hole;

[0041] 521, hollow shaft; 522, third gear; 523, fourth gear;

[0042] 61. third motor; 62. delivery pipeline; 63. fluid channel; 64. pressurizing unit;

[0043] 621, hollow shaft; 622, fifth gear; 623, sixth gear; 624, water inlet pipe; 625, water outlet pipe;

[0044] 641. Outer box; 642. Pressure pump; 643. Water inlet pipe. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. It should be pointed out that the drawings are schematic and not drawn to scale. For the sake of clarity and convenience in the figures, the relative sizes and proportions of the parts shown in the figures are exaggerated or reduced in size, and any size is only exemplary and not restrictive.

[0046] Embodiment 1:

[0047] See also Figure 1-Figure 3 ,as well as Figure 5A sludge dewatering device for water conservancy project construction includes: a base 1 and a box body 2 fixed on the base 1, a drainage channel is arranged at the bottom of the box body 2, and is used to discharge mud and water through the drainage channel after mud and water are separated, and also includes: a mud and water separation mechanism 3, including a first motor 31 arranged on the outer shell of the box body 2 and a rotating separation component 32 arranged in the box body 2, and the output shaft of the first motor 31 is connected to the rotating separation component 32 in a transmission manner; a feeding component 4, which is fixedly installed in the box body 2 and communicated with the rotating separation component 32, and is used to transport sludge to the rotating separation component 32; a spiral conveying component 5, including a second motor 51 and a spiral conveying member 52 arranged in the rotating separation component 32 and connected to the second motor 51 in a transmission manner, and a drainage hole 53 is arranged on the surface of the spiral conveying member 52, and the drainage hole 53 is connected to the spiral conveying structure The spiral blades of the member 52 are staggered; the cleaning component 6 includes a third motor 61, a conveying pipeline 62 inserted in the spiral conveying member 52, and a pressurizing unit 64 fixed on the box body 2; a fluid channel 63 is provided on the conveying pipeline 62; the output shaft of the third motor 61 is transmission-connected to the conveying pipeline 62, and is used to control the alignment state of the fluid channel 63 and the drainage hole 53; one end of the conveying pipeline 62 is connected to the pressurizing unit 64, and the other end extends to the outside of the box body 2; a control terminal 7 is also fixedly installed on the box body 2, which is electrically connected to the first motor 31, the second motor 51, the third motor 61 and the pressurizing unit 64; the startup and shutdown processes are completed by setting and manually operating the control terminal 7, and according to the mud-water separation process and the cleaning process, it is planned as a mud-water separation mode and a cleaning mode.

[0048] By adopting the above technical solution, when in use, the rotating separation component 32 is rotated by the driving action of the first motor 31, sludge is input through the feeding component 4, and the spiral conveying component 52 is driven by the second motor 51 to rotate differentially with the rotating separation component 32, thereby realizing the centrifugal separation process of the sludge and the process of outputting the sludge.

[0049] In the above process, the fluid channel 63 and the drainage hole 53 are in a misaligned state, and the delivery pipeline 62 and the rotating separation component 32 are in a mutually closed state. When working, the delivery pipeline 62 and the spiral delivery member 52 rotate at the same angular velocity.

[0050] When cleaning is performed after shutdown, the third motor 61 drives the delivery pipeline 62 to rotate, so that the fluid channel 63 and the drainage hole 53 are aligned, and then the delivery pipeline 62 and the rotating separation component 32 are connected. High-pressure water flow is input into the delivery pipeline 62 through the pressurizing unit 64, and is ejected through the fluid channel 63 to clean the interior of the rotating separation component 32.

[0051] The control of the first motor 31 , the second motor 51 , the third motor 61 and the pressurizing unit 64 in the above process depends on the control terminal 7 .

[0052] The above cleaning process is relatively simple and reduces manual intervention compared to the prior art, thereby reducing downtime for maintenance and avoiding the problem of reduced operating efficiency due to downtime for cleaning.

[0053] See also Figure 1-Figure 3 The box body 2 includes a main working box 21 and a sub-working box 22 connected to the main working box 21 , and the mud outlet of the rotating separation component 32 extends into the sub-working box 22 .

[0054] Through the action of the spiral conveying member 52 , the sludge after the mud and water separation is discharged from the rotary separation assembly 32 and discharged through the auxiliary working box 22 .

[0055] See also Figure 1-Figure 2 ,as well as Figure 5 The rotating separation assembly 32 includes a fixed bracket 321 installed in the main working box 21, a cylinder 322 rotatably connected to the fixed bracket 321, and a first gear 323 arranged at both ends of the cylinder 322. The output shaft of the first motor 31 is fixed with a second gear 324 meshing with the first gear 323.

[0056] The cylinder 322 adopts the structure of a rotary drum in the prior art, and a large number of pores are formed on its outer wall so that water in the sludge can overflow from the pores and still remain in the cylinder 322 .

[0057] See also Figure 1 and Figure 2 The feed assembly 4 includes a sleeve 41 coaxially connected to the cylinder 322 and a feed port 42 disposed at the top of the sleeve 41 , and a sludge conveying channel is formed between the sleeve 41 and the cylinder 322 rotating separation assembly 32 .

[0058] The sleeve 41 is rotatably connected to the cylinder 322 , and a rotary seal design is used to ensure that the mud-water mixture does not directly overflow from between the sleeve 41 and the cylinder 322 .

[0059] See also Figure 1-Figure 2 ,as well as Figure 5-Figure 6 The spiral conveying member 52 includes a hollow shaft body 521 rotatably connected to the cylinder 322 , one end of which extends outside the main working box 21 and is provided with a third gear 522 ; the output shaft of the second motor 51 is provided with a fourth gear 523 meshing with the third gear 522 .

[0060] See also Figure 2 as well as Figure 4-Figure 8The conveying pipeline 62 includes a hollow shaft 621 that passes through the spiral conveying member 52, and the two ends of the hollow shaft 621 are respectively connected to the water inlet pipe 624 and the water outlet pipe 625; a fifth gear 622 is fixed to the end of the hollow shaft 621, and a sixth gear 623 that meshes with the fifth gear 622 is fixed to the output shaft of the third motor 61. A control valve 626 is arranged on the water outlet pipe 625, and the pressurizing unit 64 includes an outer box 641, which is provided with a pressurizing pump 642 inside, and the water inlet pipe 643 is fixedly installed at its input end, and the output end is fixed to the water inlet pipe 624.

[0061] In the above technical solution, the water inlet pipe 624 and the water outlet pipe 625 are kept in a fixed state by external equipment, and the water inlet pipe 624 and the water outlet pipe 625 are connected to the hollow shaft 621 by a rotating connection. When cleaning, the control valve 626 is in a closed state. After cleaning, the control valve 626 is opened, and a certain amount of water is introduced through the pressure pump 642 to discharge the sludge entering the inner cavity of the hollow shaft 621.

[0062] The water inlet pipe 643 installed in the outer box 641 is connected to an external water supply device. Water is transported through the external water supply device, pressurized by the pressure pump 642 , enters the hollow shaft 621 , and is then sprayed toward the fluid channel 63 .

[0063] Embodiment 2:

[0064] See also Figure 1 and Fig. 9 On the basis of Example 1, the end of the cylinder 322 facing the auxiliary working box 22 is a conical structure, and the shape of the spiral blades in the hollow shaft body 521 is adapted to the shape of the cylinder 322.

[0065] In the above technical solution, the end of the cylinder 322 is set to a conical structure. After the sludge is dehydrated, it is squeezed when separated from the cylinder 322, which further reduces the water content in the sludge and improves the dehydration effect.

[0066] Embodiment 3:

[0067] See also Figure 1 On the basis of Example 1 or Example 2, a material receiving box 8 is also installed on the base 1, and the material receiving box 8 is located below the outlet of the cylinder 322 and the auxiliary working box 22 to facilitate carrying materials.

[0068] Working principle: During the mud-water separation process, the first motor 31 drives the rotating separation component 32 to rotate, and the second motor 51 drives the spiral conveying member 52 to rotate, and the rotational speeds of the rotating separation component 32 and the spiral conveying member 52 are different. At the same time, the third motor 61 drives the conveying pipeline 62 to rotate, and the rotational speeds of the conveying pipeline 62 and the second motor 51 are the same, and the fluid channel 63 and the drainage hole 53 are in a staggered state, ensuring that the conveying pipeline 62 and the interior of the rotating separation component 32 are in a mutually closed state.

[0069] After the separation of mud and water, when it is necessary to clean the inner wall of the rotating separation component 32 and the spiral conveying member 52, the first motor 31 and the second motor 51 are controlled to stop running, and the third motor 61 is driven to rotate until the drainage hole 53 and the fluid channel 63 are aligned, so that the interior of the rotating separation component 32 and the conveying pipeline 62 are in a connected state, and the pressurizing unit 64 is started to supply water, so that the high-pressure water flow is sprayed into the interior of the cylinder 322 through the fluid channel 63, thereby cleaning the interior of the cylinder 322 and the spiral conveying member 52.

[0070] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0071] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0072] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0075] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0076] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sludge dewatering device for water conservancy project construction, comprising a base (1) and a box (2) fixed on the base (1), characterized in that: Also includes: The mud-water separation mechanism (3) comprises a first motor (31) arranged on the outer shell of the housing (2) and a rotating separation component (32) arranged in the housing (2), wherein the output shaft of the first motor (31) is drivingly connected to the rotating separation component (32); A feeding assembly (4) is fixedly mounted in the housing (2), is communicated with the rotating separation assembly (32), and is used to convey sludge to the rotating separation assembly (32); A screw conveying assembly (5) comprises a second motor (51) and a screw conveying member (52) disposed in the rotating separation assembly (32) and drivingly connected to the output shaft of the second motor (51), wherein a drainage hole (53) is disposed on the surface of the screw conveying member (52), and the drainage hole (53) and the spiral blade of the screw conveying member (52) are staggered. A cleaning assembly (6), comprising a third motor (61), a delivery pipeline (62) inserted into a spiral delivery member (52), and a pressurizing unit (64) fixed to a housing (2); a fluid channel (63) is provided on the delivery pipeline (62); an output shaft of the third motor (61) is in driving connection with the delivery pipeline (62) and is used to control the alignment state of the fluid channel (63) and the drainage hole (53); one end of the delivery pipeline (62) is in communication with the pressurizing unit (64), and the other end extends to the outside of the housing (2); A control terminal (7) electrically connected to the first motor (31), the second motor (51), the third motor (61) and the pressurizing unit (64) is fixedly mounted on the box body (2).

2. The sludge dewatering equipment for water conservancy project construction according to claim 1, characterized in that: The box body (2) comprises a main working box (21) and a secondary working box (22) connected to the main working box (21), and the mud outlet of the rotating separation component (32) extends into the secondary working box (22).

3. The sludge dewatering equipment for water conservancy project construction according to claim 2 is characterized in that: The rotating separation assembly (32) comprises a fixed bracket (321) installed in the main working box (21), a cylinder (322) rotatably connected to the fixed bracket (321), and a first gear (323) arranged at both ends of the cylinder (322); the output shaft of the first motor (31) is fixed with a second gear (324) meshing with the first gear (323).

4. The sludge dewatering equipment for water conservancy project construction according to claim 3 is characterized by: The feed assembly (4) comprises a sleeve (41) coaxially connected to the cylinder (322), and a feed port (42) arranged at the top of the sleeve (41); a sludge conveying channel is formed between the sleeve (41) and the rotary separation assembly (32).

5. The sludge dewatering equipment for water conservancy project construction according to claim 3 is characterized by: The spiral conveying member (52) comprises a hollow shaft (521) rotatably connected in the cylinder (322), one end of which extends outside the main working box (21) and is provided with a third gear (522); the output shaft of the second motor (51) is provided with a fourth gear (523) meshing with the third gear (522).

6. The sludge dewatering equipment for water conservancy project construction according to claim 1, characterized in that: The conveying pipeline (62) comprises a hollow shaft (621) penetrating the spiral conveying member (52); two ends of the hollow shaft (621) are rotatably connected to a water inlet pipe (624) and a water outlet pipe (625), respectively; and a control valve (626) is disposed on the water outlet pipe (625); A fifth gear (622) is fixed to the end of the hollow shaft (621), and a sixth gear (623) meshing with the fifth gear (622) is fixed to the output shaft of the third motor (61).

7. The sludge dewatering equipment for water conservancy project construction according to claim 6, characterized in that: The pressurizing unit (64) comprises an outer box (641) with a pressurizing pump (642) disposed inside, an input end of which is fixedly mounted a water inlet pipe (643), and an output end of which is fixed to the water inlet pipe (624).

8. The sludge dewatering equipment for water conservancy project construction according to claim 5, characterized in that: One end of the cylinder (322) facing the auxiliary working box (22) is a conical structure, and the shape of the spiral blades in the hollow shaft body (521) is compatible with the shape of the cylinder (322).

9. The sludge dewatering equipment for water conservancy project construction according to claim 3, characterized in that: The base (1) is also provided with a material receiving box (8) located below the outlet of the cylinder (322).

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