Rapid sludge dewatering device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a rapid sludge dewatering device for sewage treatment, which comprises a barrel, a connecting barrel communicated with the inside of the barrel is fixedly connected to the center of the bottom of the barrel, and an outer barrel is fixedly connected to the bottom end of the connecting barrel. According to the sewage treatment device disclosed by the utility model, the conveying auger can be driven to rotate through the rotating shaft I, and meanwhile, the reciprocating screw rod can be driven to rotate through the conveying auger, so that the extrusion plate can be driven to move up and down in the separation barrel in a reciprocating manner; in this way, sewage can be extruded and separated out from the multiple round holes in the outer wall of the separation barrel, the dehydration effect is enhanced, the sewage is discharged into the filtering piece through the drainage pipe to be filtered, and therefore sludge particles and the like in the sewage can be removed again, and the sewage treatment efficiency is improved. And an extrusion plate slides downwards to drive a scraping ring to scrape off sludge on the inner wall of the separation cylinder, so that the dehydration structure is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sludge rapid dehydration device used for sewage treatment. Background Art

[0002] Sludge is the inevitable product of sewage treatment plants and sewage stations. If the sludge is not properly treated and disposed of, it will directly cause secondary pollution to the water and the atmosphere after entering the environment, and will also pose a serious threat to the ecological environment and human activities. Dewatered sludge refers to the solid residue remaining after the wet sludge is dehydrated by drainage or filtration. After various dehydration treatments, the moisture content is reduced to 65% to 85% and the sludge has become wet soil.

[0003] Timely sludge discharge is an extremely important task in sewage treatment operation and management. The sludge is dehydrated by filtering, and the sludge is continuously squeezed against the back pressure plate to completely squeeze out the water and then complete the shedding. However, the existing dehydration device generally spins out the water in the sludge, and the dehydration effect is not good. When there is too much sludge, it is easy to cause the dehydration mechanism to be blocked, resulting in dehydration difficulties. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of the utility model is to provide a sludge rapid dewatering device for sewage treatment, wherein sewage can be discharged into the cylinder through a water inlet pipe and a water pump, and a rotating shaft 1 and a plurality of stirring rods on the outer wall can be driven to rotate together through the output end of the driving motor, so that the sludge in the sewage can be stirred and crushed by the stirring rods, thereby beating the sludge into a flocculent state, which is convenient for subsequent dewatering treatment and improves the separation efficiency of the water body and the sludge; the rotating shaft 1 can drive the conveying auger to rotate, so that the conveying auger can continuously transport the sewage downward into the separation cylinder, and at the same time, the conveying auger can drive the reciprocating screw to rotate, which can drive the extrusion plate in the separation cylinder The separation cylinder reciprocates up and down, and when the separation cylinder slides downward, the sewage can be squeezed through the squeezing plate, so that the sewage can be squeezed out from the multiple circular holes on the outer wall of the separation cylinder, thereby enhancing the dehydration effect, and the sewage is discharged into the filter element through the drain pipe for filtration treatment, so that the sludge particles in the sewage can be removed again, and the downward sliding of the squeezing plate can drive the scraping ring to scrape off the sludge on the inner wall of the separation cylinder, thereby preventing the clogging of the dehydration structure; the remaining sludge after the sludge in the separation cylinder is squeezed and dehydrated will continue to be squeezed into the discharge column, and then the sludge can be squeezed out from the gap between the closing plate and the bottom end of the discharge column, and then the sludge is collected in the storage barrel through the sludge discharge pipe.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A sludge rapid dewatering device for sewage treatment comprises a cylinder, a connecting cylinder connected to the interior of the cylinder is fixedly connected at the center position of the bottom of the cylinder, an outer cylinder is fixedly connected to the bottom end of the connecting cylinder, a rotating shaft 1 is rotatably connected in the cylinder, a plurality of stirring rods are fixedly connected to the outer wall of the rotating shaft 1 at equal intervals in an annular manner, an output end of a driving motor is fixedly connected to the top of the rotating shaft 1, a water inlet pipe connected to the interior of the cylinder is fixedly connected to the outer wall of the cylinder, a water pump is fixedly arranged in the water inlet pipe, two support plates are symmetrically fixedly connected to the outer wall of the outer cylinder, a drain pipe connected to the interior of the cylinder is fixedly connected to the outer wall of the outer cylinder, and a filter is fixedly arranged at the end of the drain pipe.

[0007] Furthermore, the bottom end of the rotating shaft 1 is fixedly connected with a connecting seat, and the bottom end of the connecting seat is fixedly connected with a conveying auger, and the sewage can be conveyed to the separation cylinder through the conveying auger.

[0008] Furthermore, a separation cylinder is fixedly sleeved in the outer cylinder, and a plurality of circular holes are equidistantly provided in an annular manner on the outer wall of the separation cylinder, the bottom end of the conveying auger is fixedly connected to a reciprocating screw, and an extrusion plate is screwed and sleeved on the outside of the reciprocating screw, and the extrusion plate is slidably sleeved with the inside of the separation cylinder, and a scraper ring is fixedly connected to the bottom of the extrusion plate, and the bottom end of the outer cylinder is fixedly connected to a chassis, and two limit rods symmetrically fixedly connected to the chassis are slidably connected to the extrusion plate, and the extrusion plate can be limited in sliding direction in the vertical direction by the limit rods.

[0009] Furthermore, the extrusion plate is symmetrically provided with four square holes about its vertical center plane, a reset rotating plate is rotatably connected in the square hole, a torsion spring is fixedly connected to the rotating connection of the reset rotating plate, a baffle that contacts the reset rotating plate is fixedly connected to the inner wall of the square hole, when the extrusion plate slides upward, the sludge will squeeze the reset rotating plate to rotate, thereby entering the bottom of the extrusion plate through the square hole, which is convenient for the next sludge extrusion.

[0010] Furthermore, a mud discharge pipe is fixedly connected to the bottom of the chassis, and a storage barrel which is in communication with the interior of the mud discharge pipe is fixedly connected to the bottom end of the mud discharge pipe, so that the sludge can be stored in the storage barrel, and can be subsequently processed uniformly.

[0011] Furthermore, a discharge column is fixedly connected to the bottom of the chassis, two tension springs are symmetrically fixedly connected in the discharge column, a closing plate is fixedly connected between the two tension springs, the mud discharge pipe is socketed with the discharge column, and the bottom end of the discharge column can be sealed by the closing plate, thereby facilitating the device to dehydrate the sludge.

[0012] Beneficial effects of the utility model:

[0013] 1. The sewage can be discharged into the cylinder through the water inlet pipe and the water pump, and the output end of the driving motor can drive the rotating shaft 1 and the multiple stirring rods on the outer wall to rotate together, so that the sludge in the sewage can be stirred and crushed by the stirring rods, so that the sludge can be beaten into flocculent state, which is convenient for subsequent dehydration treatment, so that the separation efficiency of water and sludge can be improved;

[0014] 2. The conveying auger can be driven to rotate by the rotating shaft 1, so that the conveying auger can continuously transport the sewage downward to the separation cylinder. At the same time, the conveying auger can drive the reciprocating screw to rotate, which can drive the extrusion plate to move back and forth up and down in the separation cylinder. When the separation cylinder slides downward, the extrusion plate can squeeze the sewage, so that the sewage can be squeezed out from the multiple circular holes on the outer wall of the separation cylinder, thereby enhancing the dehydration effect. The sewage is discharged into the filter element through the drain pipe for filtration treatment, so that the sludge particles in the sewage can be removed again. The downward sliding of the extrusion plate can drive the scraper ring to scrape off the sludge on the inner wall of the separation cylinder, thereby preventing the dehydration structure from being blocked;

[0015] 3. After the sludge in the separation cylinder is squeezed and dehydrated, the remaining sludge will continue to be squeezed into the discharge column, and then the sludge can be squeezed out from the gap between the closing plate and the bottom of the discharge column, and then collected into the storage barrel through the sludge discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 3 It is a cross-sectional structural diagram of a cylinder in the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the outer cylinder in the utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure of the extruded plate in the utility model;

[0022] Figure 6 It is a schematic diagram of the chassis connection structure in the utility model.

[0023] In the figure: 101, cylinder; 102, rotating shaft 1; 103, stirring rod; 104, driving motor; 105, water inlet pipe; 106, water pump; 107, connecting cylinder; 108, conveying auger; 201, outer cylinder; 202, separation cylinder; 203, reciprocating screw; 204, extrusion plate; 205, scraper ring; 206, limit rod; 207, square hole; 208, reset rotating plate; 209, torsion spring; 210, chassis; 211, discharge column; 212, tension spring; 213, closing plate; 214, mud discharge pipe; 215, storage barrel; 216, support plate; 217, drain pipe; 218, filter element; 219, baffle. DETAILED DESCRIPTION

[0024] The following will be combined with 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.

[0025] See also Figure 1-5 As shown, a sludge rapid dehydration device for sewage treatment includes a cylinder 101, a connecting cylinder 107 connected to the inside of the cylinder 101 is fixedly connected at the center of the bottom of the cylinder 101, an outer cylinder 201 is fixedly connected to the bottom end of the connecting cylinder 107, a rotating shaft 102 is rotatably connected in the cylinder 101, a plurality of stirring rods 103 are fixedly connected to the outer wall of the rotating shaft 102 at equal distances in an annular manner, the top of the rotating shaft 102 is fixedly connected to the output end of the driving motor 104, and the outer wall of the cylinder 101 is fixedly connected to the outer wall of the rotating shaft 102. An inlet pipe 105 is connected to the inside thereof, and a water pump 106 is fixedly arranged in the inlet pipe 105. Two support plates 216 are symmetrically fixedly connected to the outer wall of the outer cylinder 201. A drainage pipe 217 connected to the inside thereof is fixedly connected to the outer wall of the outer cylinder 201, and a filter element 218 is fixedly arranged at the end of the drainage pipe 217. A connecting seat is fixedly connected to the bottom end of the rotating shaft 102, and a conveying auger 108 is fixedly connected to the bottom end of the connecting seat, through which sewage can be conveyed to the separation cylinder 202.

[0026] The outer cylinder 201 is fixedly connected with a separation cylinder 202, and a plurality of circular holes are formed in an annular manner at equal intervals on the outer wall of the separation cylinder 202. The bottom end of the conveying auger 108 is fixedly connected with a reciprocating screw rod 203, and the outer part of the reciprocating screw rod 203 is screwed and connected with an extrusion plate 204, which is slidably connected with the inner part of the separation cylinder 202. The bottom of the extrusion plate 204 is fixedly connected with a scraper ring 205, and the bottom end of the outer cylinder 201 is fixedly connected with a chassis 210, and two limit rods 206 slidably connected with the extrusion plate 204 are symmetrically fixedly connected to the chassis 210. 6 can limit the sliding of the squeezing plate 204 in the vertical direction; four square holes 207 are symmetrically opened on the squeezing plate 204 about its vertical center plane, and a reset rotating plate 208 is rotatably connected in the square hole 207, and a torsion spring 209 is fixedly connected to the rotating connection of the reset rotating plate 208. A baffle 219 that conflicts with the reset rotating plate 208 is fixedly connected to the inner wall of the square hole 207. When the squeezing plate 204 slides upward, the sludge will squeeze the reset rotating plate 208 to rotate, so as to enter the bottom of the squeezing plate 204 through the square hole 207, which is convenient for the next sludge squeezing.

[0027] A mud discharge pipe 214 is fixedly connected to the bottom of the chassis 210, and a storage barrel 215 which is connected to the inside of the mud discharge pipe 214 is fixedly connected to the bottom end thereof, so that the sludge can be stored through the storage barrel 215, so that the sludge can be uniformly treated later; a discharge column 211 is fixedly connected to the bottom of the chassis 210, and two tension springs 212 are symmetrically fixedly connected in the discharge column 211, and a closing plate 213 is fixedly connected between the two tension springs 212, and the mud discharge pipe 214 is sleeved with the discharge column 211, and the bottom end of the discharge column 211 can be sealed through the closing plate 213, so that the device can dehydrate the sludge.

[0028] Working principle: When in use, sewage can be discharged into the cylinder 101 through the water inlet pipe 105 and the water pump 106, and the output end of the driving motor 104 can drive the rotating shaft 102 and the multiple stirring rods 103 on the outer wall to rotate together, so that the sludge in the sewage can be stirred and crushed by the stirring rods 103, so that the sludge can be beaten into flocculent state, which is convenient for subsequent dehydration treatment, so that the separation efficiency of water and sludge can be improved;

[0029] The conveying auger 108 can be driven to rotate by the rotating shaft 102, so that the conveying auger 108 can continuously convey the sewage downward to the separation cylinder 202. At the same time, the conveying auger 108 can drive the reciprocating screw rod 203 to rotate, which can drive the squeezing plate 204 to move back and forth up and down in the separation cylinder 202. When the separation cylinder 202 slides downward, the squeezing plate 204 can squeeze the sewage, so that the sewage can be squeezed out from the multiple circular holes on the outer wall of the separation cylinder 202, thereby enhancing the dehydration effect. The sewage is discharged into the filter element 218 through the drain pipe 217 for filtration treatment, so that the sludge particles in the sewage can be removed again. The squeezing plate 204 slides downward to drive the scraper ring 205 to scrape off the sludge on the inner wall of the separation cylinder 202, thereby preventing the dehydration structure from being blocked.

[0030] After the sludge in the separation cylinder 202 is squeezed and dehydrated, the remaining sludge will continue to be squeezed into the discharge column 211, and then the sludge can be squeezed out from the gap between the closing plate 213 and the bottom end of the discharge column 211, and then collected into the storage barrel 215 through the sludge discharge pipe 214.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above contents are merely examples and explanations of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A sludge rapid dehydration device for sewage treatment, characterized in that: It comprises a cylinder, a connecting cylinder connected to the interior of the cylinder is fixedly connected at the center position of the bottom of the cylinder, an outer cylinder is fixedly connected to the bottom end of the connecting cylinder, a rotating shaft 1 is rotatably connected in the cylinder, a plurality of stirring rods are fixedly connected to the outer wall of the rotating shaft 1 at equal distances in an annular manner, an output end of a driving motor is fixedly connected to the top of the rotating shaft 1, a water inlet pipe connected to the interior of the cylinder is fixedly connected to the outer wall of the cylinder, a water pump is fixedly arranged in the water inlet pipe, two supporting plates are symmetrically fixedly connected to the outer wall of the outer cylinder, a drain pipe connected to the interior of the outer cylinder is fixedly connected to the outer wall of the outer cylinder, and a filter is fixedly arranged at the end of the drain pipe; The bottom end of the rotating shaft 1 is fixedly connected with a connecting seat, and the bottom end of the connecting seat is fixedly connected with a conveying auger; A separation cylinder is fixedly sleeved in the outer cylinder, and a plurality of circular holes are opened in an annular manner at equal distances on the outer wall of the separation cylinder. A reciprocating screw is fixedly connected to the bottom end of the conveying auger, and an extrusion plate is screwed and sleeved on the outside of the reciprocating screw, and the extrusion plate is slidably sleeved with the inside of the separation cylinder, and a scraper ring is fixedly connected to the bottom of the extrusion plate, and a chassis is fixedly connected to the bottom end of the outer cylinder, and two limit rods slidably connected to the extrusion plate are symmetrically fixedly connected to the chassis.

2. The sludge rapid dehydration device for sewage treatment according to claim 1 is characterized in that: The extrusion plate is symmetrically provided with four square holes about its vertical center plane, a reset rotating plate is rotatably connected in the square hole, a torsion spring is fixedly connected to the rotating connection of the reset rotating plate, and a baffle that contacts the reset rotating plate is fixedly connected to the inner wall of the square hole.

3. The sludge rapid dehydration device for sewage treatment according to claim 1 is characterized in that: The bottom of the chassis is fixedly connected with a mud discharge pipe, and the bottom end of the mud discharge pipe is fixedly connected with a storage barrel communicated with the interior thereof.

4. A sludge rapid dehydration device for sewage treatment according to claim 3, characterized in that: A discharge column is fixedly connected to the bottom of the chassis, two tension springs are symmetrically fixedly connected to the discharge column, a closing plate is fixedly connected between the two tension springs, and the mud discharge pipe is sleeved with the discharge column.

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