CN218642605U

CN218642605U - Sludge pretreatment device

Info

Publication number: CN218642605U
Application number: CN202222625991.5U
Authority: CN
Inventors: 关宇; 吴晓珊; 郑建平; 陆启政; 欧小凡; 封锦明
Original assignee: Huizhou Daya Bay Habitat Technology Co ltd
Current assignee: Huizhou Daya Bay Habitat Technology Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-17
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a silt preprocessing device, include: the device comprises a shell, a flushing mechanism and at least two groups of conveying mechanisms, wherein the shell is provided with a feeding hole, a first discharging hole and a second discharging hole; the washing mechanism is arranged on the shell and used for washing sludge; the conveying mechanisms comprise propeller blades and driving assemblies in transmission connection with the propeller blades, a screening channel is formed between the propeller blades of two adjacent rows of conveying mechanisms, and the screening channel is used for screening out pre-discharged stone blocks; wherein, transport mechanism can be through the propeller blade with arrange stone block in advance and carry to the second discharge gate. In the technical scheme, the pre-discharged stone blocks are arranged above the propeller blades and cannot be mixed into the slurry through the propeller blades, so that the problem that the equipment is damaged due to the fact that the stone blocks are clamped between the two adjacent rows of propeller blades is avoided, the treatment effect is good, and the treatment cost is favorably reduced.

Description

Sludge pretreatment device

Technical Field

The utility model relates to a silt handles relevant technical field, in particular to silt preprocessing device.

Background

At present, the sludge discharged in river and lake dredging, port dredging, water area replacement and filling, water area tunnel penetrating and the like often contains a certain amount of stones.

The existing sludge treatment process generally comprises the steps of impurity removal, mud-rock separation, mud-sand separation, slurry conditioning, heavy metal treatment, organic matter treatment, slurry dehydration, tail water treatment, tail gas treatment and the like. In the mud-stone separation process, large-size stones easily cause heavy impact on the continuous production stability of a production line, such as the problems of equipment blockage, equipment smashing and damage, equipment abrasion acceleration and the like.

To solve the above problems, methods are generally adopted: the method has the advantages that large-size stones are forcibly required at the source of a dredging site, and cannot be loaded on a car and conveyed to a treatment link, so that the complete treatment of the sludge is not realized, the efficiency and effect of the selection are difficult to control on the site, additional pollution and safety problems are easily caused, and the treatment cost is increased; or before the sludge enters a treatment link, large-size stones are manually selected and removed in advance by using equipment such as an excavator, the problems of uncontrollable selection efficiency and effect and the like exist, and the treatment cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a silt preprocessing device, silt preprocessing device treatment effect is better, is favorable to reducing treatment cost.

According to the utility model discloses silt preprocessing device, include: the device comprises a shell, a washing mechanism and at least two groups of transmission mechanisms, wherein the shell is provided with a feeding hole, a first discharging hole for discharging slurry and a second discharging hole for discharging stones; the flushing mechanism is arranged on the shell and used for flushing sludge; at least two groups of conveying mechanisms are arranged side by side, each conveying mechanism comprises a propeller blade and a driving assembly in transmission connection with the propeller blades, a screening channel is formed between the propeller blades of two adjacent rows of conveying mechanisms, and the screening channel is used for screening out pre-discharge stones; wherein the conveying mechanism can convey the pre-discharge stone blocks to the second discharge hole through the propeller blade.

According to the utility model discloses silt preprocessing device has following beneficial effect at least: adopt above-mentioned structure, at least two sets of transport structure arrange side by side, the maximum width of screening passageway is less than the size of the stone of discharging in advance, large size stone can't get into between two adjacent rows of propeller blades through the screening passageway promptly, under washing of washing mechanism, realize the mud stone separation, large size stone is outwards discharged through the pushing motion to the second discharge gate in the propeller blade top, the preliminary formation mud of surplus silt composition realization under the rivers effect to move to first discharge gate outwards and discharge under the effect of propeller blade and rivers. Among this technical scheme, the stone of arranging in advance is in the top of propeller blade, and can't mix into in the mud through the propeller blade, is favorable to reducing the stone and blocks and arouse equipment damage between two adjacent rows of propeller blades, and the treatment effect is better, is favorable to reducing treatment cost.

According to some embodiments of the invention, the propeller blades of two adjacent rows of the transport mechanism are arranged in a staggered manner.

According to some embodiments of the utility model, drive assembly include driving motor and with the transmission shaft that the driving motor transmission is connected, the transmission shaft rotationally set up in the casing, the propeller blade is followed the axial of transmission shaft is around establishing and arranging.

According to some embodiments of the invention, the inclined angle between the sidewall of the propeller blade and the axis of the drive shaft is α, which ranges from 5 degrees to 20 degrees.

According to some embodiments of the invention, the drive assembly further comprises a plurality of support plates, the support plates are arranged along the axis of the transmission shaft, and the propeller blade is detachably connected with the transmission shaft through the support plates.

According to some embodiments of the invention, the propeller blade is detachably connected with the upper end of the support plate by a first connecting structure.

According to some embodiments of the invention, the lower extreme of backup pad pass through second connection structure with the lower extreme detachably of backup pad connects.

According to some embodiments of the invention, the propeller blade comprises a plurality of plates, which are detachably connected to each other; the transmission shaft comprises a plurality of shaft sections, and the shaft sections are detachably connected with each other.

According to some embodiments of the utility model, wash the mechanism and include first high pressure nozzle and second high pressure nozzle, first high pressure nozzle set up in shells inner wall's top, second high pressure nozzle follows the axis of transmission shaft is arranged.

According to some embodiments of the present invention, the discharge port of the mud pump is communicated with the first discharge port.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a sludge pretreatment device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of the sludge pretreatment apparatus according to the embodiment of the present invention;

fig. 3 is a schematic structural view of a propeller blade, a transmission shaft and a support plate according to an embodiment of the present invention;

reference numerals:

a shell 10, a feed inlet 11 and a first discharge outlet 12;

the device comprises a flushing mechanism 20, a first high-pressure spray head 21, a second high-pressure spray head 22, a conveying mechanism 30, a propeller blade 31, a driving motor 32, a transmission shaft 33, a support plate 34, a screening channel 40 and a mud pump 50.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As shown in fig. 1, fig. 2 and fig. 3, the sludge pretreatment apparatus according to the embodiment of the present invention includes: the device comprises a shell 10, a washing mechanism 20 and at least two groups of conveying mechanisms 30, wherein the shell 10 is provided with a feed inlet 11, a first discharge outlet 12 for discharging slurry and a second discharge outlet 13 for discharging stone; the washing mechanism 20 is arranged on the shell 10, and the washing mechanism 20 is used for washing sludge; the conveying mechanisms 30 are arranged side by side, each conveying mechanism 30 comprises a propeller blade 31 and a driving assembly in transmission connection with the propeller blades 31, a screening channel 40 is formed between the propeller blades 31 of two adjacent rows of conveying mechanisms 30, and the screening channels 40 are used for screening out pre-discharged stone blocks; wherein the conveying mechanism 30 can convey the pre-discharged stone blocks to the second discharge port 13 through the propeller blades 31.

It can be understood that a feed hopper is arranged on the shell 10 corresponding to the feed inlet 11, and the cross section of the feed hopper in the height direction is of an inverted trapezoidal structure, so that material residue in the feed hopper is avoided.

According to the utility model discloses silt preprocessing device, adopt above-mentioned structure, at least two sets of transport structure arrange side by side, the maximum width of screening passageway 40 is less than the size of the stone of discharging in advance, large size stone can't get into between two adjacent rows of propeller blades 31 through screening passageway 40 promptly, under the washing of washing mechanism 20, realize the mud stone separation, the jumbo size stone is outwards discharged through push motion to second discharge gate 13 in propeller blade 31 top, surplus silt composition realizes tentatively becoming mud under the rivers effect, and move to first discharge gate 12 and outwards discharge under propeller blade 31 and rivers effect. In this technical scheme, the stone of arranging in advance is in the top of propeller blade 31, and can't mix into in the mud through propeller blade 31, is favorable to reducing the stone and blocks and arouse equipment damage between two adjacent rows of propeller blades 31, and the treatment effect is better, is favorable to reducing the treatment cost.

It should be noted that, as shown in fig. 1 and fig. 2, in the present embodiment, the number of the conveying mechanisms 30 is set to be two groups, and certainly, in some embodiments, the number of the conveying mechanisms 30 may also be three groups or four groups, which is not limited herein; the first discharge port 12 and the second discharge port 13 are both provided at one end of the housing 10,

specifically, in some embodiments of the present invention, the propeller blades 31 of two adjacent rows of the conveying mechanism 30 are arranged in a staggered manner. By adopting the structure, the phenomenon that large-size stones enter between the double-helix blades 31 and are blocked is further avoided.

It will be appreciated that, as shown in fig. 1, 2 and 3, in some embodiments of the present invention, the driving assembly includes a driving motor 32 and a transmission shaft 33 in transmission connection with the driving motor 32, the transmission shaft 33 is rotatably disposed in the housing 10, and the propeller blades 31 are disposed around the transmission shaft 33 in an axial direction. By adopting the structure, the structure is simple, and the transmission is stable and reliable.

It should be noted that, in the present embodiment, the pitch between two adjacent rows of the propeller blades 31, that is, the plane where the two transmission shafts 33 are located is taken as a cross section, and the two propeller blades 31 form a cross section of the screening channel 40 at the cross section, and the maximum width in the cross sectional view of the screening channel 40 is smaller than the size of the stones to be screened, so as to avoid the stones to be screened from falling off from the screening channel 40; the maximum width dimension of the screening channel 40, set according to the size of the rocks to be separated by the process, can be adjusted over a wide range in order to achieve that the pre-discharged rocks cannot be mixed into the slurry above the propeller blades 31 by the propeller blades 31.

As shown in fig. 3, in some embodiments of the present invention, the side wall of the propeller blade 31 is inclined at an angle α to the axis of the transmission shaft 33, where α is in the range of 5 degrees to 20 degrees. Adopt above-mentioned structure to supplementary promotion stone etc. material moves towards second discharge gate 13.

It will be appreciated that, as shown in fig. 3, in some embodiments of the present invention, the drive assembly further comprises a plurality of support plates 34, the support plates 34 being arranged along the axis of the drive shaft 33, the propeller blades 31 being detachably connected to the drive shaft 33 via the support plates 34. By adopting the structure, the supporting of the propeller blade 31 is realized, and the maintenance and replacement of the propeller blade 31 are convenient.

Of course, in some embodiments, the propeller blade 31 may be integrally formed with the transmission shaft 33, which is not limited herein.

In some embodiments of the present invention, the propeller blade 31 is detachably connected to the upper end of the support plate 34 by a first connecting structure. Specifically, in this embodiment, the first connecting structure includes a first bolt and a first nut screwed with the first bolt, the upper end of the supporting plate 34 and the propeller blade 31 are penetrated through by the first bolt, and the first bolt is in threaded connection with the first nut, so that the propeller blade 31 is fixedly connected with the supporting plate 34, and the first connecting structure is simple in structure and convenient to disassemble, assemble and maintain.

In some embodiments of the present invention, the lower end of the supporting plate 34 is detachably connected to the lower end of the supporting plate 34 by a second connecting structure. Specifically, in this embodiment, the second connecting structure includes a second bolt and a second nut screwed with the second bolt, the lower end of the supporting plate 34 and the transmission shaft 33 are penetrated through by the second bolt, and the second bolt is connected with the second nut by screw thread, so as to fixedly connect the transmission shaft 33 with the supporting plate 34, and the second connecting structure is simple in structure, and is convenient to disassemble, assemble and maintain.

In some embodiments of the present invention, the propeller blade 31 includes a plurality of plates detachably connected to each other, and the transmission shaft 33 includes a plurality of shaft sections detachably connected to each other, so as to facilitate detachment and assembly.

It will be appreciated that, as shown in the drawings, in some embodiments of the present invention, the flushing mechanism 20 includes a first high pressure nozzle 21 and a second high pressure nozzle 22, the first high pressure nozzle 21 is disposed on the top of the inner wall of the casing 10, and the second high pressure nozzle 22 is disposed along the axis of the transmission shaft 33. High-pressure continuous water spraying is carried out to assist material flowing, and high-pressure water is sprayed to the sludge from the gaps of the propeller blades 31 of the second high-pressure spray head 22 to cut the sludge and realize mud-stone separation, and meanwhile, the water flow forms mud to assist material conveying.

In this embodiment, the housing 10 is a hard shell and can be made of hard wear-resistant materials such as manganese steel plates; the support plate 34 is also made of hard wear-resistant material such as manganese steel.

As shown in fig. 1, in some embodiments of the present invention, a mud pump 50 is further included, and an inlet end of the mud pump 50 is communicated with the first discharge port 12 to rapidly deliver mud to the next process.

It should be noted that the first discharge port 12 and the second discharge port 13 may be configured with a chute, a belt conveyor, etc. so as to be connected with subsequent processing equipment to complete material transportation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. Sludge pretreatment device, its characterized in that includes:

the device comprises a shell (10) provided with a feeding hole (11), a first discharging hole (12) used for discharging slurry and a second discharging hole (13) used for discharging stone;

a washing mechanism (20) arranged on the shell (10), wherein the washing mechanism (20) is used for washing the sludge;

at least two groups of conveying mechanisms (30) which are arranged side by side, wherein each conveying mechanism (30) comprises a propeller blade (31) and a driving assembly in transmission connection with the propeller blade (31), a screening channel (40) is formed between the propeller blades (31) of two adjacent rows of conveying mechanisms (30), and the screening channel (40) is used for screening out pre-discharged stone blocks;

wherein the conveying mechanism (30) is capable of conveying pre-discharged stone blocks to the second discharge port (13) by means of the propeller blades (31).

2. Sludge pre-treatment installation according to claim 1, wherein the propeller blades (31) of two adjacent rows of the conveyor means (30) are arranged offset.

3. Sludge pre-treatment apparatus according to claim 1 or 2, wherein the driving assembly comprises a driving motor (32) and a transmission shaft (33) in transmission connection with the driving motor (32), the transmission shaft (33) being rotatably arranged in the housing (10), the propeller blades (31) being arranged around in the axial direction of the transmission shaft (33).

4. Sludge pre-treatment apparatus according to claim 3, wherein the sidewalls of the propeller blades (31) are inclined at an angle α to the axis of the drive shaft (33), α being in the range of 5 to 20 degrees.

5. Sludge pre-treatment apparatus according to claim 3, wherein the drive assembly further comprises a plurality of support plates (34), the support plates (34) being arranged along the axis of the drive shaft (33), the propeller blades (31) being detachably connected to the drive shaft (33) via the support plates (34).

6. Sludge pre-treatment apparatus according to claim 5, wherein the propeller blade (31) is detachably connected with the upper end of the support plate (34) by means of a first connecting structure.

7. Sludge pre-treatment apparatus according to claim 5, wherein the lower end of the support plate (34) is detachably connected to the lower end of the support plate (34) by a second connecting structure.

8. Sludge pre-treatment apparatus according to claim 3, wherein the propeller blades (31) comprise a plurality of plates, between which a plurality of said plates are detachably connected;

the transmission shaft (33) comprises a plurality of shaft sections, and the shaft sections are detachably connected with each other.

9. Sludge pretreatment apparatus according to claim 3, characterized in that the flushing mechanism (20) comprises a first high-pressure spray head (21) and a second high-pressure spray head (22), the first high-pressure spray head (21) being provided on top of the inner wall of the housing (10), the second high-pressure spray head (22) being arranged along the axis of the transmission shaft (33).

10. The sludge pretreatment apparatus of claim 1, further comprising a mud pump (50), an inlet end of the mud pump (50) being in communication with the first outlet (12).