CN212025169U - Mud-falling-preventing spiral roller - Google Patents
Mud-falling-preventing spiral roller Download PDFInfo
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- CN212025169U CN212025169U CN202020392099.5U CN202020392099U CN212025169U CN 212025169 U CN212025169 U CN 212025169U CN 202020392099 U CN202020392099 U CN 202020392099U CN 212025169 U CN212025169 U CN 212025169U
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Abstract
The application provides a prevent mud type spiral roll that falls belongs to sewage, waste water multistage separation device technical field. The spiral conveying device comprises a conveying shaft, a spiral sheet, a shell and a motor, wherein the motor is fixed on the shell and drives the conveying shaft to rotate; the outer side of the spiral piece is provided with a baffle piece in a non-closed structure, the inner diameter of the baffle piece is not smaller than the outer diameter of the spiral piece, and the outer diameter of the baffle piece is smaller than the inner diameter of the shell. Be applied to the silt-sand separation or the solidification of mud, sewage etc. with this application, have separation efficiency height, silt separation thoroughly, the operation is stable, prevent advantages such as silt drops.
Description
Technical Field
The application relates to a mud-falling prevention spiral roller, belonging to the technical field of sewage and wastewater multistage separation devices.
Background
In sludge treatment, such as riverway sludge, the sludge has the characteristics of high water content, low strength, large deformation, complex pollution components and the like, so that the sludge treatment problem is very troublesome. Especially, when the content of mud and sand is large, the conventional spiral roller drives the spiral piece 2a to rotate in the rotation of the conveying shaft 1a along with the motor 3a as shown in fig. 1, and in the process, due to the smooth spiral arrangement of the spiral piece 2a, mud and sand originally retained on the spiral piece are easy to move downwards along with water flow and slide down along the spiral piece 2a, so that the actual separation efficiency is low.
SUMMERY OF THE UTILITY MODEL
In view of this, the application provides a prevent mud type helical roll that falls that can realize that silt separation is thorough, separation efficiency is high, the operation is stable, prevents that silt from droing.
Specifically, the method is realized through the following scheme:
the mud-falling prevention spiral roller comprises a conveying shaft, a spiral piece and a motor, wherein the motor drives the conveying shaft to rotate, the conveying shaft and the spiral piece are both positioned in the shell, and the spiral piece is spirally arranged on the conveying shaft; the outer side of the spiral piece is provided with a baffle piece in a non-closed mode, the inner diameter of the baffle piece is not smaller than the outer diameter of the spiral piece, and the outer diameter of the baffle piece is smaller than the inner diameter of the shell.
Further, as preferable:
the non-closed mode means that the blocking sheet is arranged on the outer side of the spiral sheet in a 1/2-3/4 circumference mode. The non-full-circle circumferential structure facilitates processing, and when the non-full-circle circumferential structure is set to be 1/2-3/4 circumferential structure, mud, sand and water are conveniently separated between the spiral piece and the separation blade, and the mud and the sand are effectively retained on the spiral piece to avoid dropping.
The non-closed mode means that the adjacent spiral pieces are provided with blocking pieces, the blocking pieces are transversely arranged relative to the conveying shaft, and the length of the blocking pieces is 1/3-3/4 of the distance between the spiral pieces. With the monolithic formula structure setting of discontinuous structure between adjacent flight, not only convenient processing does not influence the separation of mud, sand and water on the flight, still effectual is detained mud, sand between flight and separation blade, avoids dropping.
When the spiral roller provided by the scheme is applied to a sludge box for silt solidification as a sludge outlet pipe, a circulating water plate is arranged in the sludge box, the bottom of the sludge box is of a structure with a high front part and a low back part, the circulating water plate is vertically arranged at the lower end, a chemical feeding pipe is arranged on the side wall of the sludge box corresponding to the circulating water plate, sludge to be treated enters from the top of the circulating water plate and is mixed with chemicals entering from the chemical feeding pipe, the sludge outlet pipe comprises an upper sludge outlet pipe and a lower sludge outlet pipe, the upper sludge outlet pipe is positioned in the sludge box and extends from the circulating water plate to the higher end, the lower end of the upper sludge outlet pipe is communicated with the sludge box, and the higher end of the upper sludge outlet pipe; the lateral wall of the sludge tank is also provided with an overflow pipe, the lower sludge outlet pipe is parallel to the upper sludge outlet pipe, the lower end of the upper sludge outlet pipe is communicated with the overflow pipe and the communicating port, and the higher end of the upper sludge outlet pipe is provided with a sludge outlet. The sludge enters from the top of the annular water plate, and due to different specific gravities of sand and water, the sludge is firstly shunted by the annular water plate arranged on the stand, the special structure arrangement of the annular water plate and the sludge box effectively utilizes gravity, and the first shunting can be completed in the process by matching with the medicament action of the medicament adding unit; the sewage from which a part of sludge and sand are separated firstly enters an upper sludge outlet pipe in a sludge box, water stays in the sludge box in the operation of the upper sludge outlet pipe, and the separated sewage enters a lower sludge outlet pipe through a communication port of the upper sludge outlet pipe after being blocked by a spiral plate and a blocking piece, so that the second separation is completed; an overflow pipe is arranged in the sludge tank, the overflowed water and the water discharged from the communicating port enter the lower sludge outlet pipe together, the water stays in the sludge tank/overflow pipe during the operation of the lower sludge outlet pipe, the sludge enters the lower sludge outlet pipe along with the spiral piece and the baffle piece and is discharged from the top of the lower sludge outlet pipe, and the third separation is completed; and in the whole process, sewage has also carried out certain sediment of stewing in the mud case, when not influencing above-mentioned three separation, accomplish the fourth separation in step, and under the cooperation of flight and separation blade, the phenomenon that few mud falls back to the mud case takes place, so can realize the high-efficient dehydration of mud, and the separator is direct with mud cake state from mud pipe top discharge down, and the drainage then is the limpid state, can realize directly discharging.
When the spiral roller provided by the scheme is used as a sand outlet pipe and applied to a water tank of a sand-water separation unit, the water tank is correspondingly provided with a cyclone chamber and a sand setting chamber, and the cyclone chamber is positioned above the sand setting chamber and is communicated with the sand setting chamber; the eccentric position of the cyclone chamber is provided with a water inlet pipe to realize the input of sand water; the top of the cyclone chamber is connected with a cyclone water outlet pipe to finish pre-discharging water; the bottom of the sand setting chamber is provided with a sand water inlet which is communicated with the water tank, sand deposited in the sand setting chamber is sent into the water tank, the water tank is obliquely arranged relative to the installation ground, and the lowest part of the water tank is communicated with the inlet of the sand outlet pipe. The cyclone separator removes sand by using centrifugal sedimentation and sand-water density difference, the water inlet pipe is arranged at the eccentric position of the cyclone chamber, when sand water obtained by processing of the dredging unit enters from the water inlet pipe under certain pressure, strong rotary motion is generated, because of different sand and water densities, under the combined action of centrifugal force, centripetal force, buoyancy and fluid drag force, low-density water forms oblique downward surrounding fluid along the circumferential tangential direction of the cyclone chamber, the water flow is pushed downwards in a rotating way, when the water flow reaches a certain part of the sand settling chamber, the water flow rotates upwards along the axis of the cyclone chamber, and finally the water flow is discharged through the cyclone water outlet pipe, the water is discharged for the first time, and impurities such as high-density sand fall along the wall surface of the sand settling chamber under the action of the inertial centrifugal force of the fluid and the self gravity, and are discharged into the water tank through the sand water inlet; the special installation mode of water tank has realized the secondary separation of sand, water, and the water secondary of separating is discharged, and the deposit sand is then discharged through the sand outlet pipe, and at spiral helical blade rotation in-process, sand, water obtain further separation, and the water of cubic separation is sent into next mud concentration unit, and the silt particle is taken to the sand outlet pipe top by helical blade and separation blade to discharge through the sand outlet. The whole system can realize real-time field operation without field assembly and matching, and has high sand removal rate, low sand falling probability, low leakage rate of individual micro solid and stable working state.
Drawings
FIG. 1 is a schematic structural view of a conventional spiral roll;
FIG. 2 is a schematic structural view of a spiral roller of the present application;
FIG. 3 is a side cross-sectional view of a spiral roller of the present application;
FIG. 4 is a schematic perspective view of the present application as applied to a silt curing process;
FIG. 5 is a schematic top view of the present application as applied to a silt curing process;
FIG. 6 is a schematic perspective view of the present application as applied to a silt separation process;
fig. 7 is a schematic side view of the present application as applied to a silt separation process.
Reference numbers in the figures: 1. a delivery shaft; 2. a spiral sheet; 3. a motor; 4. a baffle plate; 51. a mud pipe is arranged; 52. a mud outlet pipe is arranged; 6. a sludge tank; 61. a water circulating plate; 62. a medicine feeding pipe; 63. a communication port; 64. an overflow pipe; 65. a return pipe; 66. a sludge outlet; 7. a water tank; 71. a water inlet pipe; 72. a swirl chamber; 73. a sand setting chamber; 74. a rotational flow water outlet pipe; 75. and a sand outlet.
Detailed Description
The mud-falling-preventing spiral roller comprises a conveying shaft 1, a spiral piece 2 and a motor 3, wherein the motor drives the conveying shaft 1 to rotate, the conveying shaft 1 and the spiral piece 2 are both positioned in a shell (not shown in the figure), and the spiral piece 3 is spirally arranged on the conveying shaft 1; the outside of the spiral piece 2 is provided with a baffle piece 4 in a non-closed structure, the inner diameter of the baffle piece 4 is not less than the outer diameter of the spiral piece 3, and the outer diameter is less than the inner diameter of the shell.
As two preferred examples, the baffle 4 can adopt two non-closed structures:
the first method is as follows: the baffle plate 4 is arranged outside the spiral sheet 3 in a 1/2 to 3/4 circumference manner as shown in figure 2. The non-rounding circumferential structure facilitates processing, and when the circumferential structure is set to be 1/2-3/4, not only is mud, sand and water separated between the spiral piece 3 and the separation blade 4 facilitated, but also mud and sand are effectively retained on the spiral piece 3 to avoid dropping.
The second method comprises the following steps: the adjacent spiral pieces 3 are provided with baffle pieces 4, the baffle pieces 4 are transversely arranged (perpendicular to the rotating direction) relative to the conveying shaft 1, and the length of the baffle pieces is 1/3-3/4 of the distance between the spiral pieces 3. With the monolithic formula structure of discontinuous structure setting up between adjacent flight 3, not only convenient processing does not influence the separation of mud, sand and water on flight 3, still effectual detains mud, sand between flight 3 and separation blade 4, avoids dropping.
When the spiral roller provided by the scheme is used as a sludge outlet pipe in a sludge box for solidifying silt, a circular water plate 61 is arranged in the sludge box 6, the bottom of the sludge box 6 is of a structure with a high front part and a low back part, the circular water plate 61 is vertically arranged at the lower end, a chemical feeding pipe 62 is arranged on the side wall of the sludge box 6 corresponding to the circular water plate 61, sludge to be treated enters from the top of the circular water plate 61 and is mixed with chemicals entering from the chemical feeding pipe 62, the sludge outlet pipe comprises an upper sludge outlet pipe 51 and a lower sludge outlet pipe 52, the upper sludge outlet pipe 51 is positioned in the sludge box 6 and extends from the circular water plate 61 to the higher end, the lower end of the upper sludge outlet pipe is communicated with the sludge box 6, and the higher end of the upper sludge outlet pipe is provided with a communicating port 63; the side wall of the sludge tank 6 is also provided with an overflow pipe 64, the lower sludge outlet pipe 52 is parallel to the upper sludge outlet pipe 51, the lower end of the lower sludge outlet pipe is communicated with the overflow pipe 64 (and a return pipe 65) and a communication port 63, and the higher end of the lower sludge outlet pipe is provided with a sludge outlet 66.
The sludge enters from the top of the annular water plate 61, and due to different specific gravities of sand and water, the sludge is firstly shunted by the annular water plate 61 arranged vertically, the special structure arrangement of the annular water plate 61 and the sludge box 6 effectively utilizes gravity, and the first shunting is completed in the process by matching with the medicament action of the medicament adding unit; the sewage from which a part of sludge and sand are separated firstly enters the upper sludge outlet pipe 51 in the sludge box 6, the separated water is left in the sludge box 6 under the operation of the spiral roller of the upper sludge outlet pipe 51, and the separated sludge enters the lower sludge outlet pipe 52 through the communication port 63 of the upper sludge outlet pipe 51 after being blocked by the spiral sheet 3 and the blocking sheet 4, so that the second separation is completed; an overflow pipe 64 is arranged in the sludge tank 6, the overflowed water and the water discharged from the communicating port 63 enter the lower sludge outlet pipe 52 together, the separated water is left in the sludge tank 6/overflow pipe 64 under the operation of the spiral roller of the lower sludge outlet pipe 52, the sludge enters the lower sludge outlet pipe 51 along with the spiral sheets 3 and the baffle plates 4 and is discharged through the sludge outlet 63 at the top of the lower sludge outlet pipe 51, and the third separation is completed; in the whole process, sewage is subjected to certain standing precipitation in the sludge box 6, the fourth separation is synchronously completed while the three separations are not influenced, and the phenomenon that the sludge falls back to the sludge box is few, so that the high-efficiency dehydration of the sludge can be realized, the separated substances are directly discharged from the top of the lower sludge outlet pipe 52 in a mud cake state, and the discharged water is almost in a clear state and can be directly discharged.
When the spiral roller provided by the scheme is used as a sand outlet pipe and applied to a water tank of a sand-water separation unit, with reference to fig. 6 and 7, a cyclone chamber 72 and a sand settling chamber 73 are correspondingly arranged on the water tank 7, and the cyclone chamber 72 is positioned above the sand settling chamber 73 and is communicated with the sand settling chamber 73; a water inlet pipe 71 is arranged at the eccentric position of the cyclone chamber 72 to realize the input of sand water; the top of the cyclone chamber 72 is connected with a cyclone water outlet pipe 74 to finish pre-discharging water; the bottom of the sand setting chamber 73 is provided with a sand water inlet which is communicated with the water tank 7, sand deposited in the sand setting chamber 73 is sent into the water tank 7, the water tank 7 is obliquely arranged relative to the installation ground, and the lowest part of the water tank is communicated with the inlet of the sand outlet pipe. The cyclone chamber 72 and the sand settling chamber 73 remove sand by using centrifugal sedimentation and sand-water density difference, the water inlet pipe 71 is arranged at the eccentric position of the cyclone chamber 72, when sand-water enters from the water inlet pipe 71 under a certain pressure, strong rotary motion is generated, because of different sand and water densities, under the combined action of centrifugal force, centripetal force, buoyancy and fluid drag force, low-density water forms oblique downward surrounding fluid along the circumferential tangential direction of the cyclone chamber, the water flow rotationally moves downwards, when the water flow reaches a certain part of the sand settling chamber 73, the water flow rotates upwards along the axis of the cyclone chamber 73, and finally the water flow is discharged through a cyclone water outlet pipe, at this moment, the first water outlet is realized, and the miscellaneous dirt such as high-density sand and the like falls along the wall surface of the sand settling chamber 73 under the action of the inertial centrifugal force of the fluid and the self gravity, and is discharged into the water tank through a; the special installation mode of water tank 7 has realized the secondary separation of sand, water, and the water secondary of separating is discharged, and the deposit sand is then discharged through a sand outlet pipe, and at spiral shell 3 rotation in-process, sand, water obtain further separation, and the water of cubic separation is sent into next mud concentration unit, and the silt particle is brought to the sand outlet pipe top by spiral shell 3 and separation blade 4 to discharge through sand outlet 75. The whole system can realize real-time field operation without field assembly and matching, and has high sand removal rate, low sand falling probability and low leakage rate of individual micro solids.
Claims (5)
1. Prevent mud type spiral roller that falls, its characterized in that: the spiral conveying device comprises a conveying shaft, a spiral piece, a shell and a motor, wherein the motor drives the conveying shaft to rotate; the outer side of the spiral piece is provided with a baffle piece in a non-closed structure, the inner diameter of the baffle piece is not smaller than the outer diameter of the spiral piece, and the outer diameter of the baffle piece is smaller than the inner diameter of the shell.
2. The mud-fall preventing type helical roll according to claim 1, wherein: the non-closed structure means that the blocking sheet is arranged on the outer side of the spiral sheet in a 1/2-3/4 circumference mode.
3. The mud-fall preventing type helical roll according to claim 1, wherein: the non-closed structure is characterized in that the adjacent spiral pieces are provided with baffle pieces, the baffle pieces are transversely arranged relative to the conveying shaft, and the length of the baffle pieces is 1/3-3/4 of the distance between the spiral pieces.
4. The mud-fall preventing type helical roll according to claim 1, wherein: the spiral roller is used as a sludge outlet pipe and applied to a sludge box for silt solidification, a circulating water plate is arranged in the sludge box, the bottom of the sludge box is of a structure with a high front part and a low back part, the circulating water plate is vertically arranged at the lower end, a dosing pipe is arranged on the side wall of the sludge box corresponding to the circulating water plate, sludge to be treated enters from the top of the circulating water plate and is mixed with a medicament entering from the dosing pipe, the sludge outlet pipe comprises an upper sludge outlet pipe and a lower sludge outlet pipe, the upper sludge outlet pipe is positioned in the sludge box and extends from the circulating water plate to the higher end, the lower end of the upper sludge outlet pipe is communicated with the sludge box, and the higher end of the upper sludge outlet pipe; the lateral wall of the sludge tank is also provided with an overflow pipe, the lower sludge outlet pipe is parallel to the upper sludge outlet pipe, the lower end of the upper sludge outlet pipe is communicated with the overflow pipe and the communicating port, and the higher end of the upper sludge outlet pipe is provided with a sludge outlet.
5. The mud-fall preventing type helical roll according to claim 1, wherein: the spiral roller is used as a sand outlet pipe and applied to a water tank of the sand-water separation unit, the water tank is correspondingly provided with a cyclone chamber and a sand setting chamber, and the cyclone chamber is positioned above the sand setting chamber and is communicated with the sand setting chamber; the eccentric position of the cyclone chamber is provided with a water inlet pipe to realize the input of sand water; the top of the cyclone chamber is connected with a cyclone water outlet pipe to finish pre-discharging water; the bottom of the sand setting chamber is provided with a sand water inlet which is communicated with the water tank, sand deposited in the sand setting chamber is sent into the water tank, the water tank is obliquely arranged relative to the installation ground, and the lowest part of the water tank is communicated with the inlet of the sand outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392099.5U CN212025169U (en) | 2020-03-24 | 2020-03-24 | Mud-falling-preventing spiral roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392099.5U CN212025169U (en) | 2020-03-24 | 2020-03-24 | Mud-falling-preventing spiral roller |
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| Publication Number | Publication Date |
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| CN212025169U true CN212025169U (en) | 2020-11-27 |
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| CN202020392099.5U Active CN212025169U (en) | 2020-03-24 | 2020-03-24 | Mud-falling-preventing spiral roller |
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