Earthwork sludge dewatering device

Abstract

The utility model relates to the technical field of dewatering devices, and discloses an earthwork sludge dewatering device which comprises a base. A support plate; a support column; a dewatering cylinder; dewatering holes; a rotating part; a feeding port; the extrusion plate can freely slide in the axial direction of the dewatering cylinder, a lead screw part is arranged on the portion, located in the dewatering cylinder, of the supporting column, a nut sleeve is coaxially arranged on the extrusion plate in a penetrating mode, and the nut sleeve is in threaded fit with the lead screw part. According to the sludge dewatering device, the rotating part is arranged to drive the dewatering cylinder to rotate so as to centrifugally spin-dry sludge in the dewatering cylinder and reduce the water content of the sludge, and in addition, when the dewatering cylinder rotates, the dewatering cylinder and the supporting column rotate relatively, so that the nut sleeve on the extrusion plate can be screwed with the screw rod part on the supporting column in a threaded manner; and then the extrusion plate is driven to move in the axial direction of the dewatering barrel, so that sludge in the dewatering barrel can be extruded, water in the sludge can be rapidly separated from the sludge under the dual acting force of extrusion force and centrifugal force, and the dewatering progress and efficiency of the sludge are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dewatering device technical field, concretely is a earthwork silt dewatering device. BACKGROUND

[0002] Earthwork engineering is one of main engineering in building engineering construction, including all earth (stone) side, filling, transportation and drainage, dewatering etc. Earthwork engineering has large engineering quantity, complex construction condition, and is influenced by geology, hydrology, meteorology etc.

[0003] In the construction process, the silt in the earthwork will increase the load of the transport vehicle when transporting the just dug earthwork, and the water in the silt will be spilled on the road surface with the vehicle driving, causing pollution to the road surface.

[0004] In the prior art, when the silt is dewatered, the silt is mainly dewatered by a centrifugal dewatering device, but this dewatering method needs a centrifugal dewatering device with a large rotating speed, and the water in the silt may be blocked by the silt and cannot be centrifuged out, resulting in poor dewatering effect, so a device capable of quickly dewatering the silt in the earthwork is needed. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a earthwork silt dewatering device.

[0006] In order to solve the above-mentioned technical problems, the utility model provides the following technical scheme:

[0007] A earthwork silt dewatering device, comprising:

[0008] Support plates separately arranged at both ends of the base;

[0009] Support columns horizontally fixedly connected to the two support plates;

[0010] A dewatering cylinder coaxially rotatably sleeved on the support column and hollow inside, a plurality of dewatering holes penetrating through the inside of the dewatering cylinder are arranged on the outer wall of the dewatering cylinder, the dewatering cylinder is driven to rotate by a rotating part, and a feeding port in communication with the inside of the dewatering cylinder is arranged on the circumference of the dewatering cylinder;

[0011] An extrusion plate clamped in the dewatering cylinder, the extrusion plate rotates synchronously with the dewatering cylinder and can freely slide axially along the dewatering cylinder, a screw rod part is arranged at the position of the support column in the dewatering cylinder, a screw nut sleeve is coaxially arranged on the extrusion plate, and the screw nut sleeve is threadedly matched with the screw rod part.

[0012] Preferably, the rotating part comprises:

[0013] A driven gear coaxially connected to the shaft end face of the dewatering cylinder;

[0014] A motor is mounted on one of the support plates;

[0015] A driving gear is fixedly sleeved on the output shaft of the motor and externally engaged with the driven gear.

[0016] Preferably, protrusions are arranged on the periphery of the extrusion plate, and sliding grooves for engaging the protrusions and allowing the protrusions to slide freely are arranged on the inner wall of the dehydration cylinder.

[0017] Preferably, a cover is threadedly connected to the mouth of the feeding port.

[0018] Preferably, an agitating rod is vertically slidably arranged in the cover, and a plurality of agitating blades are arranged on the end of the agitating rod penetrating into the dehydration cylinder, and the agitating rod is driven by a reciprocating driving part to reciprocate along the radial direction of the dehydration cylinder when the dehydration cylinder rotates.

[0019] Preferably, the reciprocating driving part comprises:

[0020] a floating block arranged on the other end of the agitating rod and made of a magnetically conductive material;

[0021] a tension spring sleeved on the agitating rod and fixedly connected to the floating block and the cover at two ends thereof;

[0022] a permanent magnet arranged on the base and corresponding to the position of the feeding port.

[0023] Preferably, a through hole in the form of a blind hole is coaxially arranged on one end of the support column adjacent to the feeding port, and a plurality of air outlet holes are arranged on the part of the support column located in the dehydration cylinder and communicating with the through hole.

[0024] Preferably, a joint is arranged on the support plate and penetrating the through hole.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] The rotation part is arranged to drive the dehydration cylinder to rotate, so as to centrifugally dry the sludge in the dehydration cylinder and reduce the water content of the sludge. In addition, the dehydration cylinder and the support column rotate relatively when the dehydration cylinder rotates, so that the nut sleeve on the extrusion plate can be threadedly engaged with the screw rod part on the support column, thereby driving the extrusion plate to move along the axial direction of the dehydration cylinder, so as to extrude the sludge in the dehydration cylinder. Under the action of the extrusion force and the centrifugal force, the water in the sludge can quickly separate from the sludge, thereby improving the dehydration progress and efficiency of the sludge.

[0027] The screw rod part and the nut sleeve are arranged, so that the extrusion plate can move synchronously when the dehydration cylinder rotates, and no additional elements are required, thereby reducing the manufacturing cost.

[0028] Through setting the stirring rod and the stirring sheet, when the dehydration cylinder rotates, the stirring rod can be driven to reciprocate, and then the stirring sheet can stir the dehydrated sludge close to the feeding port, so that the sludge cannot smoothly fall from the feeding port. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the principles of the present application, and do not constitute a limitation of the present application. In the drawings:

[0030] Figure 1 It is a structural schematic view of the earthwork sludge dehydration device of the present application;

[0031] Figure 2 It is Figure 1 a sectional view of the structure;

[0032] Figure 3 It is Figure 2 an enlarged schematic view of the local structure at A in the structure.

[0033] In the drawings, the following reference signs are explained as follows:

[0034] 1-permanent magnet; 2-base; 3-branch plate; 4-joint; 5-feeding port; 6-cover; 7-floating block; 8-dehydration hole; 9-dehydration cylinder; 10-driven gear; 11-supporting column; 12-motor; 13-driving gear; 14-communication hole; 15-sliding groove; 16-extrusion plate; 17-screw rod part; 18-bump; 19-tension spring; 20-stirring rod; 21-stirring sheet; 22-air outlet. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and do not limit the present application.

[0036] Embodiment

[0037] As Figures 1-3 shown, the present embodiment provides a technical solution: a kind of earthwork sludge dehydration device, comprising:

[0038] The branch plate 3 is arranged at both ends of the base 2, specifically, the two branch plates 3 can be installed at both ends of the base 2 in length direction by welding;

[0039] The supporting column 11 is horizontally fixedly connected to the two branch plates 3, that is, the two ends of the supporting column 11 in length direction are welded on the two branch plates 3 respectively;

[0040] A hollow dehydration cylinder 9 is coaxially rotatably sleeved on the supporting column 11, and the two ends of the dehydration cylinder 9 are respectively embedded with bearings, and the two ends of the supporting column 11 are respectively inserted into the two bearings, a plurality of dehydration holes 8 penetrating the inside of the dehydration cylinder 9 are arranged on the outer wall of the dehydration cylinder 9, the dehydration cylinder 9 is driven to rotate by a rotating part, and a feeding port 5 in communication with the inside of the dehydration cylinder 9 is arranged on the periphery of the dehydration cylinder 9, sludge is conveyed into the dehydration cylinder 9 through the feeding port 5, and then the rotating part drives the dehydration cylinder 9 to rotate, when rotating, the sludge in the dehydration cylinder 9 is subjected to centrifugal force, and then the water in the sludge is drained from the dehydration holes 8 under the action of the centrifugal force;

[0041] The extrusion plate 16 is engaged in the dehydration cylinder 9, the extrusion plate 16 rotates synchronously with the dehydration cylinder 9 and can freely slide axially along the dehydration cylinder 9, the position of the supporting column 11 in the dehydration cylinder 9 is provided with a screw rod part 17, a screw nut sleeve is coaxially arranged on the extrusion plate 16, the screw nut sleeve is threadedly matched with the screw rod part 17, when the dehydration cylinder 9 rotates, the supporting column 11 is in a relative rotating state with the dehydration cylinder, and then the screw rod part 17 is threadedly combined with the screw nut sleeve, in the process of threadedly combining, the extrusion plate 16 moves along with the screw nut sleeve, in the process of moving, the sludge in the dehydration cylinder 9 can be extruded, when the extrusion plate moves close to the feeding port, or when the resistance of the sludge collected by the pressure sensor installed on the extrusion plate is large, the signal of the pressure sensor is fed back to the external control equipment through a wireless transmission module, and then the dehydration cylinder is stopped from rotating, so that the sludge dehydration operation is completed.

[0042] In the soil sludge dehydration device, the external conveying pump conveys the sludge in the soil to the feeding port 5, and then into the dehydration cylinder 9, the rotating part drives the dehydration cylinder 9 to rotate, when rotating, the sludge in the dehydration cylinder 9 is subjected to centrifugal force, and then the water in the sludge is drained from the dehydration holes 8 under the action of the centrifugal force, further, a surrounding plate can be installed on the periphery of the base to prevent the splashing of the splashed sewage, when the dehydration cylinder 9 rotates, the supporting column 11 is in a relative rotating state with the dehydration cylinder, and then the screw rod part 17 is threadedly combined with the screw nut sleeve, in the process of threadedly combining, the extrusion plate 16 moves along with the screw nut sleeve, in the process of moving, the sludge in the dehydration cylinder 9 can be extruded, when the extrusion plate moves close to the feeding port, or when the resistance of the sludge collected by the pressure sensor installed on the extrusion plate is large, the signal of the pressure sensor is fed back to the external control equipment through a wireless transmission module, and then the dehydration cylinder is stopped from rotating, so that the sludge dehydration operation is completed, after the dehydration operation is completed, the dehydration cylinder is rotated to the position that the mouth of the feeding port is downward, so that the dehydrated sludge can be taken out from the feeding port and discharged.

[0043] As shown in Figures 1-3 , the rotating part comprises:

[0044] A driven gear 10 is coaxially connected to the shaft end face of the dehydration cylinder 9, and can be connected to the end face of the dehydration cylinder 9 by screw connection or welding;

[0045] A motor 12 is mounted on one of the support plates 3, and the motor 12 is powered by an external power supply;

[0046] A driving gear 13 is fixedly sleeved on the output shaft of the motor 12 and externally engaged with the driven gear 10.

[0047] In the soil sludge dehydration device, the external power supply powers the motor 12, so that the motor 12 can drive the driving gear 13 to rotate, and then drive the dehydration cylinder 9 to rotate through the external engagement of the driving gear 13 and the driven gear 10, so that the sludge in the dehydration cylinder can be centrifuged out.

[0048] As shown in Figures 1-3 , the extrusion plate 16 is provided with a protrusion 18 on the circumference, and the dehydration cylinder 9 is provided with a sliding groove 15 for clamping the protrusion 18 and capable of freely sliding, so that the extrusion plate 16 does not rotate when sliding in the dehydration cylinder, and can move along the axial direction of the dehydration cylinder 9.

[0049] As shown in Figures 1-3 , the mouth of the feeding port 5 is threadedly connected with a cover 6, that is, the small-diameter end of the cover 6 is provided with an external thread, the inner wall of the feeding port 5 is provided with an internal thread, and the external thread and the internal thread are matched, so that the cover 6 can be installed on the feeding port 5.

[0050] As shown in Figures 1-3 , the cover 6 is vertically slidably provided with an agitating rod 20, and the end of the agitating rod 20 penetrating into the dehydration cylinder 9 is provided with a plurality of agitating pieces 21, and the dehydration cylinder 9 is driven by a reciprocating driving part to reciprocate along the radial direction of the dehydration cylinder 9 when rotating.

[0051] In the soil sludge dehydration device, the hardness of the dehydrated sludge increases, so that the feeding port may be blocked when discharging, and thus the discharging is not smooth, so that the agitating rod is driven to reciprocate by the reciprocating driving part when the dehydration cylinder 9 rotates, so that the sludge in the dehydration cylinder 9 can be agitated to avoid blocking the feeding port.

[0052] As shown in Figures 1-3 , the reciprocating driving part comprises:

[0053] A floating block 7 made of a magnetically conductive material is arranged on the other end of the agitating rod 20, and the magnetically conductive material can be any one of iron, cobalt and nickel, so that the floating block 7 can move when subjected to magnetic attraction;

[0054] A tension spring 19 is wound around the stirring rod 20 and fixed at both ends to the floating block 7 and the cover 6, respectively. The two ends of the tension spring 19 are welded to the floating block 7 and the cover 6, respectively.

[0055] The permanent magnet 1, located on the base 2 and corresponding to the feeding port 5, has a magnetic force that can ensure sufficient magnetic attraction to the floating block 7, thereby driving the stirring rod to move and enabling the stirring rod to stir the sludge in the dewatering cylinder.

[0056] In the earthwork sludge dewatering device described in this utility model, when the dewatering cylinder rotates, it will cause the feeding port to rotate intermittently to the permanent magnet 1, so that the floating block 7 and the permanent magnet 1 will generate magnetic force cooperation. Under the magnetic attraction of the permanent magnet 1, the floating block 7 will exert a force on the floating block 7, so that the floating block 7 will overcome the tension of the tension spring and move downward, so that the stirring rod will drive the stirring plate to stir in the sludge, thereby stirring the sludge and preventing the sludge from hardening and clogging the feeding port.

[0057] like Figures 1-3 As shown, a blind hole 14 is coaxially opened at one end of the support column 11 near the feeding port 5, and multiple air outlets 22 are opened on the part of the support column 11 located inside the dewatering cylinder 9, which are connected to the connecting hole 14.

[0058] In the earthwork sludge dewatering device described in this utility model, an external air compressor will generate compressed air, which will enter the connecting hole 14 and then be discharged from the air outlet 22. It can blow air into the sludge in the dewatering cylinder, so that the airflow can escape in the sludge and loosen the sludge inside, thus avoiding the sludge discharge being obstructed.

[0059] like Figures 1-3 As shown, the support plate 3 is provided with a connector 4 that communicates with the connecting hole 14. The connector 4 is connected to the air compressor through a pipeline, so that the compressed air generated by the air compressor is delivered to the connecting hole 14 through the connector 4.

[0060] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An earth slurry dewatering device, characterized by, The utility model relates to a dehydration device, which comprises: support plates (3) arranged at two ends of a base (2); support columns (11) horizontally fixedly connected to the two support plates (3); a dehydration cylinder (9) coaxially sleeved on the support columns (11) and internally hollow, the dehydration cylinder (9) being provided with a plurality of dehydration holes (8) penetrating through the inside thereof on the outer wall, the dehydration cylinder (9) being driven to rotate by a rotating part, and the periphery of the dehydration cylinder (9) being provided with a feeding opening (5) in communication with the inside thereof; a pressing plate (16) engaged in the dehydration cylinder (9), the pressing plate (16) being synchronously rotated with the dehydration cylinder (9) and being capable of freely sliding axially along the dehydration cylinder (9), the position of the support columns (11) in the dehydration cylinder (9) being provided with a screw rod part (17), a screw nut sleeve being coaxially provided on the pressing plate (16), and the screw nut sleeve being threadedly matched with the screw rod part (17).

2. The earth slurry dewatering device according to claim 1, wherein The rotating part comprises: a driven gear (10) coaxially connected to the axial end face of the dehydration cylinder (9); a motor (12) mounted on one of the support plates (3); a driving gear (13) fixedly sleeved on the output shaft of the motor (12) and externally meshed with the driven gear (10).

3. The soil sludge dewatering device according to claim 1, wherein The periphery of the pressing plate (16) is provided with a protrusion (18), and the inner wall of the dehydration cylinder (9) is provided with a sliding groove (15) for engaging the protrusion (18) and capable of freely sliding.

4. The soil sludge dewatering device according to claim 1, wherein The mouth of the feeding opening (5) is threadedly connected with a cover (6).

5. The soil sludge dewatering device of claim 4, wherein An agitating rod (20) is vertically slidably provided on the cover (6), one end of the agitating rod (20) penetrating into the dehydration cylinder (9) is provided with a plurality of agitating blades (21), and the agitating rod (20) is driven by a reciprocating driving part to reciprocate radially along the dehydration cylinder (9) when the dehydration cylinder (9) rotates.

6. The soil sludge dewatering device of claim 5, wherein, The reciprocating driving part comprises: a floating block (7) made of a magnetically conductive material and arranged on the other end of the agitating rod (20); a tension spring (19) wound on the agitating rod (20) and fixedly connected to the floating block (7) and the cover (6) at two ends, respectively; a permanent magnet (1) arranged on the base (2) and corresponding to the position of the feeding opening (5).

7. The soil sludge dewatering device of claim 1, wherein One end of the support column (11) adjacent to the feeding opening (5) is coaxially provided with a communication hole (14) in the form of a blind hole, and a plurality of air outlet holes (22) in communication with the communication hole (14) are formed in the position of the support column (11) in the dehydration cylinder (9).

8. The soil sludge dewatering device of claim 7, wherein, The support plate (3) is provided with a joint (4) in communication with the communication hole (14).

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