Sludge concentration conveyor

Abstract

The utility model relates to a sludge thickening conveyor which comprises a base, a feeding cylinder, a cylinder filter screen, a discharging cylinder and a gear motor which are sequentially connected from bottom to top, a plurality of rubber cylinders which are sequentially arranged from bottom to top are installed on the inner side of the cylinder filter screen, and a circle of drainage channel is formed between every two adjacent rubber cylinders; an auger is mounted on a power output shaft of the gear motor, and the gear motor drives the auger to rotate in the feeding cylinder, the rubber cylinder and the discharging cylinder. The sludge treatment device has the beneficial effects that sludge enters the feeding round pipe, the auger is driven to rotate through the gear motor, the sludge is lifted from the feeding cylinder to the discharging cylinder through the rubber cylinders, and part of water in the sludge is discharged out of the cylinder filter screen through the drainage channels between the adjacent rubber cylinders under the action of gravity and extrusion force; therefore, the sludge is concentrated in the sludge conveying process.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment, and in particular to a sludge thickening conveyor. Background Technology

[0002] In the wastewater treatment process, flocculants are used to aggregate suspended solids in the wastewater. The aggregated suspended solids settle at the bottom of the sedimentation tank through sedimentation, forming sludge. The treated water at the top is discharged to subsequent wastewater treatment equipment. The sludge settled at the bottom of the sedimentation tank needs to be transported to a filter press for further dewatering. Currently, sludge is mainly transported using sludge pumps or ordinary screw conveyors. The sludge cannot be concentrated during the transportation process. Therefore, a conveyor that can concentrate the sludge during transportation is needed. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned problems existing in the prior art and to provide a sludge thickening conveyor.

[0004] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0005] A sludge thickening conveyor includes a base, a feed cylinder, a cylindrical filter screen, a discharge cylinder, and a geared motor connected sequentially from bottom to top. Multiple rubber cylinders arranged sequentially from bottom to top are installed on the inner side of the cylindrical filter screen, with a drainage channel formed between adjacent rubber cylinders. An auger for lifting and conveying sludge is installed on the power output shaft of the geared motor, and the geared motor drives the auger to rotate within the feed cylinder, the rubber cylinders, and the discharge cylinder.

[0006] The rubber tube is conical in shape, with the outer diameter of the top of the rubber tube being smaller than the inner diameter of the bottom of the rubber tube. The top of the rubber tube is inserted from bottom to top into the bottom opening of the adjacent rubber tube above it.

[0007] The outer side wall of the top of the rubber cylinder is provided with several raised strips arranged in a circular array.

[0008] The pitch of the spiral blades of the auger gradually decreases from bottom to top.

[0009] The screw conveyor has a spiral rubber strip installed on the outer periphery of its spiral blades, and the cross-section of the rubber strip is U-shaped.

[0010] The base includes a circular sealing plate, two right-angled trapezoidal upright plates, and a rectangular bottom plate. The upright plates are vertically welded to the top of the bottom plate, and the sealing plate is welded to the inclined surface of the upright plates. The sealing plate is connected to the bottom of the feed cylinder with bolts.

[0011] Preferably, the feeding cylinder is provided with an upward-facing feeding hopper.

[0012] Preferably, the discharge cylinder is provided with a discharge pipe with its opening facing downwards.

[0013] Preferably, a triangular support frame is fixed to the bottom of the discharge cylinder.

[0014] The beneficial effects of this utility model are as follows: when sludge enters the feed cylinder, the auger is driven to rotate by the geared motor, which lifts the sludge from the feed cylinder through the rubber cylinder to the discharge cylinder. Under the action of gravity and extrusion, some of the water in the sludge is discharged outside the filter screen of the cylinder through the drainage channel between the adjacent rubber cylinders, thereby concentrating the sludge during the sludge transportation process. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the sludge thickening conveyor in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the rubber cylinder assembly in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the rubber cylinder in this utility model;

[0019] Figure 4 This is a schematic diagram of the auger structure in this utility model;

[0020] Figure 5 This is a schematic diagram of the base structure in this utility model;

[0021] The following are the labels in the diagram: 1. Base, 11. Sealing plate, 12. Vertical plate, 13. Bottom plate, 2. Feeding cylinder, 21. Feeding hopper, 3. Cylinder filter, 4. Discharge cylinder, 41. Discharge pipe, 42. Support frame, 5. Gear motor, 6. Rubber cylinder, 61. Convex strip, 7. Screw, 71. Spiral blade, 72. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 5As shown, a sludge thickening conveyor includes a base 1, a feed cylinder 2, a cylindrical filter screen 3, a discharge cylinder 4, and a geared motor 5 connected sequentially from bottom to top. The base 1 includes a circular sealing plate 11, two right-angled trapezoidal upright plates 12, and a rectangular base plate 13. The upright plates 12 are vertically welded to the top of the base plate 13, and the sealing plate 11 is welded to the inclined surface of the upright plates 12. The sealing plate 11 is bolted to the bottom of the feed cylinder 2. The feed cylinder 2 is provided with an upward-opening feed hopper 21, from which sludge enters the feed cylinder 2. The discharge cylinder 4 is provided with a downward-opening discharge pipe 41, from which sludge lifted into the discharge cylinder 4 is discharged. A triangular support frame 42 is fixedly connected to the bottom of the discharge cylinder 4, and the support frame 42 supports the discharge cylinder 4.

[0024] The feeding cylinder 2, the cylindrical filter screen 3, the discharging cylinder 4, and the geared motor 5 are coaxial, and the feeding cylinder 2, the cylindrical filter screen 3, the discharging cylinder 4, and the geared motor 5 are tilted at 45°.

[0025] Multiple rubber cylinders 6 are installed on the inner side of the cylindrical filter screen 3, arranged sequentially from bottom to top. The rubber cylinders 6 are coaxial with the cylindrical filter screen 3, and a drainage channel is formed between two adjacent rubber cylinders 6. The rubber cylinder 6 is conical, and the outer diameter of the top of the rubber cylinder 6 is smaller than the inner diameter of the bottom of the rubber cylinder 6. The top of the rubber cylinder 6 is inserted from bottom to top into the bottom opening of the adjacent rubber cylinder 6 above it.

[0026] Several protrusions 61 arranged in a circular array are provided on the outer side wall of the top of the rubber cylinder 6. The protrusions 61 prevent the drainage channel between two adjacent rubber cylinders from being closed under the squeezing force of sludge.

[0027] The power output shaft of the geared motor 5 is equipped with an auger 7 for lifting and conveying sludge. The geared motor 5 drives the auger 7 to rotate in the feed cylinder 2, the rubber cylinder 6, and the discharge cylinder 4.

[0028] The pitch of the spiral blades 71 of the auger 7 gradually decreases from bottom to top, so that the sludge is subjected to greater compressive force as it is lifted upward.

[0029] A spiral rubber strip 72 is installed on the outer periphery of the spiral blade 71 of the auger 7. The cross-section of the rubber strip 72 is U-shaped. The rubber strip 72 is used to cover the outer periphery of the spiral blade 71 to prevent the outer periphery of the spiral blade from cutting the rubber cylinder.

[0030] The sludge enters the feed cylinder 2, and the screw conveyor 7 is driven to rotate by the geared motor 5, which lifts the sludge from the feed cylinder 2 through the rubber cylinder 6 to the discharge cylinder 4. Under the action of gravity and extrusion, some of the water in the sludge is discharged outside the cylinder filter screen through the drainage channel between the adjacent rubber cylinders 6, thereby concentrating the sludge during the sludge transportation process.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sludge concentration conveyor, characterized by: The device includes a base, a feeding cylinder, a cylindrical filter screen, a discharging cylinder, and a geared motor connected in sequence from bottom to top. Multiple rubber cylinders arranged in sequence from bottom to top are installed on the inner side of the cylindrical filter screen, and a drainage channel is formed between two adjacent rubber cylinders. An auger for lifting and conveying sludge is installed on the power output shaft of the geared motor, and the geared motor drives the auger to rotate in the feeding cylinder, the rubber cylinders, and the discharging cylinder.

2. The sludge concentration conveyor of claim 1, wherein: The rubber tube is conical in shape, with the outer diameter of the top of the rubber tube being smaller than the inner diameter of the bottom of the rubber tube. The top of the rubber tube is inserted from bottom to top into the bottom opening of the adjacent rubber tube above it.

3. The sludge concentration conveyor of claim 1, wherein: The outer wall of the top of the rubber cylinder is provided with several raised strips arranged in a circular array.

4. The sludge concentration conveyor of claim 1, wherein: The pitch of the screw conveyor blades gradually decreases from bottom to top.

5. The sludge concentration conveyor of claim 1, wherein: A spiral rubber strip is installed on the outer periphery of the auger's spiral blades, and the cross-section of the rubber strip is U-shaped.

6. The sludge concentration conveyor of claim 1, wherein: The base includes a circular sealing plate, two right-angled trapezoidal upright plates, and a rectangular bottom plate. The upright plates are vertically welded to the top of the bottom plate, and the sealing plate is welded to the inclined surface of the upright plates. The sealing plate is connected to the bottom of the feed cylinder with bolts.

7. The sludge concentration conveyor of claim 1, wherein: The feeding cylinder is equipped with an upward-facing feeding hopper.

8. The sludge concentration conveyor of claim 1, wherein: The discharge cylinder is equipped with a discharge pipe with its opening facing downwards.

9. The sludge concentration conveyor of claim 1, wherein: The bottom of the discharge cylinder is fixed with a triangular support frame.

Images