CN219567774U

CN219567774U - Urban sludge dewatering device

Info

Publication number: CN219567774U
Application number: CN202320903155.0U
Authority: CN
Inventors: 林孝宝
Original assignee: Xiamen Yifutong Technology Co ltd
Current assignee: Xiamen Yifutong Technology Co ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-08-22
Anticipated expiration: 2033-04-20

Abstract

The utility model discloses an urban sludge dewatering device, which comprises a frame, a dewatering bin, a driving motor and a spiral stacking body, wherein the dewatering bin is arranged on the frame, the spiral stacking body comprises a spiral shaft, a spiral blade, a plurality of movable rings, a plurality of fixed rods and a feeding cylinder, the movable rings are fixedly arranged through the fixed rods, the spiral shaft and the spiral blade are arranged in the movable rings in a penetrating way, a rotating shaft of the driving motor is fixedly connected with one end of the spiral shaft, two sides of the dewatering bin are provided with a feeding hole and a discharging hole, two ends of the spiral stacking body are respectively penetrated from the feeding hole and the discharging hole, one end of the spiral stacking body penetrated from the feeding hole is communicated with the feeding cylinder, the drying mechanism comprises an air heater and a ventilating pipe, and two ends of the ventilating pipe are respectively communicated with one side of the air heater and the discharging hole close to the dewatering bin. The utility model has the advantages that the drying mechanism is arranged in the sludge dewatering device, and the sludge is dried after the sludge is mechanically dewatered, so that the dewatering rate of the sludge is improved.

Description

Urban sludge dewatering device

Technical Field

The utility model relates to the technical field of sludge dewatering, in particular to an urban sludge dewatering device.

Background

The domestic sludge contains a large amount of organic matters and nitrogen, phosphorus and potassium, is a good fertilizer, but the resource utilization of the domestic sludge is limited due to the harmful matters contained in the domestic sludge, and the sludge can be applied to the soil to improve the soil quality of the soil according to the experience of traditional agriculture so as to promote the growth of crops.

Most enterprises now dehydrate sludge by adopting a spiral-pile sludge dehydrator, the spiral-pile sludge dehydrator comprises a frame, a dehydration bin, a driving motor and a spiral-pile body, the spiral-pile body comprises a spiral shaft, a spiral blade, a plurality of movable rings and a plurality of fixed rods, the spiral blade and the periphery of the spiral-pile body are integrally formed, the screw pitch on the spiral shaft is gradually reduced from one end to the other end, the plurality of movable rings are arranged on the periphery of the spiral shaft and the periphery of the spiral blade through a fixed shaft, the sludge enters the spiral-pile body, the space among the spiral shaft, the spiral blade and the movable rings is gradually reduced along with the gradual reduction of the screw pitch on the spiral shaft, so that water in the sludge is extruded out, and the water is discharged from the clearance among the movable rings.

However, when the water content of the sludge reaches below 20%, the existing spiral sludge dehydrator is difficult to further dehydrate by means of a mechanical dehydrator, and after the sludge is dehydrated, the existing spiral sludge dehydrator is still difficult to meet the dehydration requirement, and needs to be improved.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide an urban sludge dewatering device which is used for mechanically dewatering sludge and then drying the sludge so as to improve the dewatering rate of the sludge.

The utility model provides an urban sludge dewatering device which comprises a frame, a dewatering bin, a driving motor and a spiral stacking body, wherein the dewatering bin is arranged on the frame, the spiral stacking body is arranged in the dewatering bin, the spiral stacking body further comprises a spiral shaft, a spiral blade, a plurality of movable rings, a plurality of fixed rods and a feeding cylinder, the movable rings are fixedly arranged through the fixed rods, the spiral shaft and the spiral blade are arranged in the movable rings in a penetrating mode, a rotating shaft of the driving motor is fixedly connected with one end of the spiral shaft, a feeding hole and a discharging hole are formed in two sides of the dewatering bin, two ends of the spiral stacking body are respectively arranged in a penetrating mode through the feeding hole and the discharging hole, one end of the spiral stacking body penetrating out of the feeding hole is communicated with the feeding cylinder, and the urban sludge dewatering device further comprises a drying mechanism, and two ends of the drying mechanism are respectively communicated with a hot air heater and one side of the discharging hole close to the dewatering bin.

Preferably, a baffle is fixedly arranged in the dewatering bin, and the baffle divides the dewatering bin into a dewatering area and a drying area.

Preferably, a cover plate is arranged above the dewatering area of the dewatering bin, and the cover plate is rotationally connected with one side of the top end of the dewatering bin.

Preferably, the movable ring and the fixed rod are uniformly divided into a plurality of groups, the dewatering bin is internally and fixedly provided with a mounting plate, the surface of the mounting plate is provided with a through hole and a plurality of first mounting holes, the movable ring comprises a filtering part and a plurality of mounting parts, the mounting parts are internally provided with second mounting holes, the fixed rod is arranged in the first mounting holes and the second mounting holes in a penetrating manner, and the fixed rod and the mounting plate are fixed by adopting a bolt locking manner.

Preferably, the thickness dimension of the filter part is L, and the thickness dimension of the mounting part is S, satisfying 0.6cm < 2l=s <1.2cm.

Preferably, the dewatering bin is obliquely arranged on the frame, and a water outlet is formed in one side of the lower position in the dewatering bin.

Preferably, the caliber of one end of the screw shaft close to the water outlet is smaller than that of one end of the screw shaft close to the driving motor.

Preferably, a plurality of stacked screw bodies are arranged, and the stacked screw bodies are mutually parallel.

Preferably, a stripper plate is arranged at the bottom end of the discharge hole, and the stripper plate is obliquely arranged.

From the above description of the utility model, the utility model has the following advantages:

1. the drying mechanism is arranged in the dewatering bin, the hot air machine is used for blowing the spiral stacking body in the dewatering bin, and the drying treatment is carried out after the sludge is mechanically dewatered, so that the dewatering rate of the sludge is improved.

2. The partition board is fixedly arranged in the dewatering bin, the dewatering bin is divided into a dewatering area and a drying area through the partition board, so that heat loss of the hot air blower in the process of drying sludge is reduced, and drying efficiency is improved.

3. A plurality of movable rings are divided into a plurality of groups and are arranged in the dewatering bin, and when gaps between the movable rings are blocked by sludge, part of the movable rings can be conveniently detached and cleaned.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an urban sludge dewatering device according to an embodiment;

FIG. 2 is a schematic view of the structure of the screw stack, feed drum and drying mechanism of the embodiment;

FIG. 3 is a schematic view of the structure of a dewatering bin according to an embodiment;

FIG. 4 is an enlarged view of a portion of embodiment A of FIG. 2;

FIG. 5 is a schematic view of the structure of an embodiment snap ring;

FIG. 6 is an enlarged partial view at B in FIG. 5 of the embodiment;

fig. 7 is a schematic structural view of the mounting plate of the embodiment.

Reference numerals: 1. a frame; 2. a dewatering bin; 21. a feed inlet; 22. a discharge port; 23. a water outlet; 24. a partition plate; 25. a dewatering zone; 26. a drying area; 27. a cover plate; 28. a stripper plate; 3. stacking screw bodies; 31. a screw shaft; 32. a helical blade; 33. a movable ring; 331. a filtering part; 332. a mounting part; 3321. a second mounting hole; 34. a fixed rod; 35. a feed cylinder; 4. a driving motor; 5. a drying mechanism; 51. an air heater; 52. a ventilation pipe; 6. a mounting plate; 61. a through hole; 62. a first mounting hole.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the utility model is further described in detail below with reference to fig. 1-7 and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 and 2, the utility model provides an urban sludge dewatering device, which comprises a frame 1, a dewatering bin 2, two spiral stacks 3, a driving motor 4 and a drying mechanism 5, wherein the plane of the upper surface of the frame 1 is inclined, the dewatering bin 2 is fixedly arranged on the frame 1, the two spiral stacks 3 are arranged in the dewatering bin 2 and are parallel to each other, the drying mechanism 5 is fixedly arranged on the outer side of the dewatering bin 2, the drying mechanism 5 is communicated with the side of the dewatering bin 2 with a relatively higher position, and the driving motor 4 is arranged on the outer side of the end of the dewatering bin 2 with a relatively higher position; after the dewatering bin 2 is arranged on the frame 1 with the inclined top surface, the relative position of one side in the dewatering bin 2 is lower, the water outlet 23 is arranged on the side with the lower relative position in the dewatering bin 2, and when sludge is dewatered in the dewatering bin 2 arranged in an inclined manner, separated sewage can flow to the water outlet 23 in a homeotropic manner and flow out of the water outlet 23, and the dewatering efficiency of the sludge is improved due to the arrangement of a plurality of spiral stacking bodies 3 in the dewatering bin 2.

Referring to fig. 2, 3 and 4, two sides of the dewatering bin 2 are respectively provided with a feed inlet 21 and a discharge outlet 22, wherein the diameters of the feed inlet 21 and the discharge outlet 22 are the same, the feed inlet 21 is positioned at one side of the dewatering bin 2 with a lower relative position, and the discharge outlet 22 is positioned at one side of the dewatering bin 2 with a higher relative position; the spiral body 3 further comprises a spiral shaft 31, a spiral blade 32, a plurality of movable rings 33 and a plurality of fixed rods 34, the spiral blade 32 is arranged on the outer surface of the spiral shaft 31 and is integrally formed, the pitch of the spiral body 3 is gradually reduced from one end of the spiral shaft 31 to the other end of the spiral shaft 31, the plurality of movable rings 33 are fixed in the dewatering bin 2 through the fixed rods 34, the inner rings of the movable rings 33 are communicated with the feed inlet 21 and the discharge outlet 22, the spiral shaft 31 and the spiral blade 32 are arranged in the plurality of movable rings 33 in a penetrating manner, two ends of the spiral shaft 31 and the spiral blade 32 are respectively penetrated out of the feed inlet 21 and the discharge outlet 22, one end of the spiral shaft 31, which is higher, is fixedly connected with a rotating shaft of the driving motor 4, and in order to facilitate the installation of the spiral body 3 to be stable, a feed cylinder 35 is arranged on the outer side of the dewatering bin 2, which is provided with the feed inlet 21, the spiral shaft 31 is communicated with the feed inlet 21, and the spiral shaft 31 is arranged in the feed cylinder 35 in a penetrating manner; in addition, in order to improve the dewatering efficiency of the sludge dewatering device, the caliber size of one end of the screw rod, which is close to the discharge hole 22, is set to be larger than the caliber size of one end of the screw rod, which is close to the feed hole 21, so that the space formed between one end of the screw rod, which is close to the discharge hole 22, and the movable ring 33 is reduced, and the sludge is extruded more fully in the dewatering process.

Referring to fig. 5 and 6, the movable ring 33 is further divided into a filtering portion 331 and a plurality of mounting portions 332, the plurality of mounting portions 332 are uniformly distributed on the periphery of the filtering portion 331 and are formed with the filtering portion 331, wherein the thickness dimension of the filtering portion 331 is L, the thickness dimension of the mounting portion 332 is S, the relation between the thickness dimension of the filtering portion 331 and the thickness dimension of the mounting portion 332 is 0.6cm < 2l=s <1.2cm, after the plurality of movable rings 33 are abutted against each other, gaps are formed between the filtering portions 331 of the movable rings 33, after the thickness dimensions of the filtering portion 331 and the mounting portion 332 are defined, excessive gaps between the movable rings 33 are avoided as much as possible to enable sludge to drop out from the movable rings 33 into the dewatering bin 2, or excessive gaps between the movable rings 33 are too small to enable water removed from the sludge to be discharged in time.

Referring to fig. 6 and 7, when a blocking condition occurs between the movable rings 33 of the spiral body 3, in order to facilitate cleaning of gaps between the movable rings 33, a plurality of movable rings 33 and a plurality of fixing rods 34 are divided into three groups, two mounting plates 6 are arranged in the dewatering bin 2, the mounting plates 6 are fixedly arranged in the dewatering bin 2 and are mutually perpendicular to the spiral axis, in addition, two mounting plates 6 are respectively arranged at two sides outside the dewatering bin 2, three mounting areas are mutually formed between the four mounting plates 6, and the same group of movable rings 33 is arranged between two adjacent mounting plates 6; in order to fix the movable ring 33 firmly through the mounting rod, a through hole and a plurality of first mounting holes 62 are formed in the mounting plate 6, when the movable ring 33 is fixed through the mounting plate 6 and the fixing rods 34, the screw shaft 31 and the screw blades 32 fixed on the periphery of the screw shaft 31 can be penetrated into the through hole, corresponding second mounting holes 3321 are formed in the mounting part 332 of the movable ring 33, the positions, the shapes and the sizes of the second mounting holes 3321 are matched with those of the first mounting holes 62, the fixing rods 34 are respectively penetrated into the first mounting holes 62 of the mounting plate 6 and the second mounting holes 3321 of the movable ring 33, and the fixing rods 34 and the mounting plate 6 are mutually abutted along with the mounting parts 332 of the movable ring 33 and are fixed through bolt locking; each movable ring 33 and the fixed rods 34 are arranged in groups, so that when a gap between the movable rings 33 is blocked, the whole spiral stacking body 3 is not required to be detached, clearance between each movable ring 33 is convenient to clean, and in addition, the fixed rods 34 and the mounting plate 6 are fixed in a bolt lock pair mode, so that the fixed structure is firm and convenient to detach.

Referring to fig. 2, the drying mechanism 5 further includes an air heater 51 and a ventilation pipe 52, the air heater 51 is fixedly arranged at the side of the dewatering bin 2, and two ends of the ventilation pipe 52 are respectively communicated with the air heater 51 and the dewatering bin 2 near the discharge port 22, in order to make the dryer perform good drying effect on the dewatered sludge, a partition plate 24 is arranged in the dewatering bin 2, and the partition plate 24 and the inner peripheral side of the dewatering bin 2 are mutually fixed, so that the dewatering bin 2 is divided into a dewatering area 25 and a drying area 26; in addition, a cover plate 27 is arranged above the drying area 26 of the dewatering bin 2, the cover plate 27 is rotatably connected with one side of the dewatering bin 2, and the drying area 26 of the dewatering bin 2 is in a relatively airtight state after the cover plate 27 is covered, so that the drying efficiency of sludge is improved; finally, a stripper plate 28 is further arranged at the discharge hole 22 of the dewatering bin 2, and the stripper plate 28 is obliquely arranged below the discharge hole 22, so that dewatered sludge can be conveniently stored.

The specific implementation principle of the embodiment of the utility model is as follows: when the sludge is required to be dehydrated, the sludge is poured into the feed inlet 21 of the dewatering bin 2 from the feed cylinder 35, then the rotating shaft of the driving motor 4 rotates to drive the spiral stacking body 3 to rotate, the sludge is conveyed towards the discharge outlet 22 of the dewatering bin 2 under the driving of the spiral blades 32 of the spiral stacking body 3, the caliber size of one end, close to the discharge outlet 22, of the spiral rod is larger and larger along with the smaller and smaller pitch of the spiral rod, so that the space formed among the spiral rod, the spiral blades 32 and the movable ring 33 is smaller and smaller, the sludge is extruded, so that the water in the sludge is separated from the gap between the movable rings 33 and flows out into the dewatering bin 2, and the sewage in the dewatering bin 2 is discharged through the water outlet 23; a relatively airtight space is formed among the partition plate 24, the cover plate 27 and the dewatering bin 2, and the hot air blower 51 which is positioned close to the discharge port 22 begins to blow hot air at the same time so as to dry the sludge in the drying area 26 in the dewatering bin 2, thereby improving the dewatering rate of the sludge and reducing the water content of the sludge discharged from the discharge port 22.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to cover various insubstantial modifications, either as applying the inventive concepts and technical solutions to the method or as applying them directly to other applications without modification, as well as all coming within the true scope of the utility model.

Claims

1. An urban sludge dewatering device which is characterized in that: including frame, dehydration storehouse, driving motor and pile the spiral body, the dehydration storehouse sets up in the frame, pile the spiral body setting in the dehydration storehouse, pile the spiral body including screw axis, helical blade, a plurality of movable ring, a plurality of dead lever and feed cylinder again, a plurality of movable ring passes through dead lever fixed mounting, screw axis and helical blade wear to establish in a plurality of movable rings, driving motor's pivot and the one end fixed connection of screw axis, feed inlet and discharge gate have been seted up to the both sides of dehydration storehouse, pile the both ends of spiral body to wear to establish respectively from feed inlet and discharge gate and go out, pile the spiral body one end that wears to establish in the feed inlet and be linked together with the feed cylinder still includes drying mechanism, drying mechanism includes hot-air machine and ventilation pipe, the both ends of ventilation pipe are linked together with hot-air machine and one side of the discharge gate that is close to the dehydration storehouse respectively.

2. The municipal sludge dewatering device according to claim 1, wherein: the dewatering bin is internally and fixedly provided with a baffle plate, and the baffle plate divides the dewatering bin into a dewatering area and a drying area.

3. The municipal sludge dewatering device according to claim 2, wherein: a cover plate is arranged above the dewatering area of the dewatering bin, and the cover plate is rotationally connected with one side of the top end of the dewatering bin.

4. The municipal sludge dewatering device according to claim 1, wherein: the movable ring and the fixed rod are uniformly divided into a plurality of groups, the installation plate is fixedly arranged in the dewatering bin, the surface of the installation plate is provided with a through hole and a plurality of first installation holes, the movable ring comprises a filtering part and a plurality of installation parts, the installation parts are positioned on the periphery of the filtering part, the installation parts are provided with second installation holes, the fixed rod is arranged in the first installation holes and the second installation holes in a penetrating manner, and the fixed rod and the installation plate are fixed by adopting a bolt locking manner.

5. The municipal sludge dewatering device according to claim 4, wherein: the thickness dimension of the filtering part is L, the thickness dimension of the mounting part is S, and 0.6cm < 2L=S <1.2cm is satisfied.

6. The municipal sludge dewatering device according to claim 1, wherein: the dewatering bin is obliquely arranged on the frame, and a water outlet is formed in one side of the lower position in the dewatering bin.

7. The municipal sludge dewatering device according to claim 1, wherein: the caliber of one end of the screw shaft close to the water outlet is smaller than that of one end of the screw shaft close to the driving motor.

8. The municipal sludge dewatering device according to claim 1, wherein: the stacked screw bodies are provided with a plurality of stacked screw bodies, and the stacked screw bodies are mutually parallel.

9. The municipal sludge dewatering device according to claim 2, wherein: the bottom of discharge gate is provided with the stripper, the stripper slope sets up.