CN115745337A

CN115745337A - Novel drip washing treatment device for oily sludge

Info

Publication number: CN115745337A
Application number: CN202211630932.5A
Authority: CN
Inventors: 马国强; 彭士涛; 于讯; 齐兆宇; 段鑫越; 梁宝翠
Original assignee: Tianjin Research Institute for Water Transport Engineering MOT
Current assignee: Tianjin Research Institute for Water Transport Engineering MOT
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-03-07

Abstract

The invention discloses a novel oil-containing sludge leaching treatment device, which belongs to the technical field of oil-containing sludge treatment equipment and comprises a leaching solid-liquid separation mechanism, wherein the leaching solid-liquid separation mechanism comprises a lower shell, an upper shell and a feed hopper, the upper shell and the lower shell are connected in a meshing manner, the feed hopper is positioned at a round hole on the upper side of the upper shell, an annular bracket is arranged in the lower shell, a filter screen plate is arranged on the annular bracket, and a leaching tower part is arranged on the upper side of the filter screen plate.

Description

Novel drip washing treatment device for oily sludge

Technical Field

The invention mainly relates to the technical field of oily sludge disposal equipment, in particular to a novel oily sludge leaching disposal device.

Background

The oily sludge refers to oily solid waste generated in the processes of ore mining, transportation, processing and the like, the tailings in the oily solid waste refers to waste discharged after ore is ground and useful components are selected by a dressing plant under specific economic and technical conditions, the tailing pulp generally discharged by the dressing plant is the main component of industrial waste, the tailing pulp contains a certain amount of useful metals and minerals and can be regarded as a composite mineral material such as silicate/carbonate and the like, the content of the main useful components in the tailings is called the grade of the tailings, and the tailing pulp is an important parameter for selecting an economic and reasonable dressing scheme and evaluating the ore selectivity.

The chemical leaching technology is an effective method for treating the oily sludge, can effectively remove oil components in the oily sludge by leaching, and has the advantages of wide application range, quick response, large treatment capacity, obvious effect and the like.

The traditional oil-containing sludge leaching technology collects oil-containing sludge, puts the oil-containing sludge on a filter plate in a leaching tank, then uses a leaching agent to clean and remove oil components in the oil-containing sludge, needs solid-liquid separation after leaching, collects and processes the oil-containing leaching solution, and backfills clean tailings or transports the clean tailings to other places.

Disclosure of Invention

The technical scheme of the invention is to solve the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and particularly mainly provides a novel oily sludge leaching treatment device which is used for solving the technical problems that meshes on a filter plate are easy to block and the leaching effect is poor, which are provided in the background art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a novel oil-containing sludge leaching treatment device comprises a leaching solid-liquid separation mechanism, wherein the leaching solid-liquid separation mechanism comprises a lower shell, an upper shell and a feed hopper, the upper shell and the lower shell are connected in a meshed mode, the feed hopper is positioned in a round hole in the upper side of the upper shell, an annular support is arranged in the lower shell, a filter screen plate is arranged on the annular support, and a leaching tower is arranged on the upper side of the filter screen plate;

the leaching tower comprises five layers in total, a first tower layer, a second tower layer, a third tower layer, a fourth tower layer and a fifth tower layer are sequentially arranged from top to bottom, the radius of the cross section of each tower layer is gradually increased, six, ten, fourteen, eighteen and twenty-two triangular convex blocks are respectively wound on the first tower layer, the second tower layer, the third tower layer, the fourth tower layer and the fifth tower layer at equal intervals, special-shaped filter holes are formed in the peripheries of the triangular convex blocks, a flow channel is formed in the lower edge of each special-shaped filter hole, each special-shaped filter hole comprises a top and two bottoms, and the two side walls of each bottom are bent downwards and close to the lowest point of the bottom.

Preferably, the top end of the leaching tower part is hemispherical.

Preferably, the inlet position of going up casing outer wall one side is provided with inlet liquid pipeline and first butt joint pipeline way, just be provided with first tee bend interface between inlet liquid pipeline and the first butt joint pipeline way, inlet liquid pipeline keeps away from first tee bend interface one end and is provided with the drip washing shower nozzle, and the drip washing shower nozzle is towards the hemisphere top of the tower of drip washing tower spare.

Preferably, a liquid discharge pipeline and a second butt joint pipeline are arranged at the position of the liquid discharge port of the lower shell, a second tee joint is arranged between the liquid discharge pipeline and the second butt joint pipeline, and a backflow pipeline is arranged between the second tee joint and the first tee joint.

Preferably, a water pump is arranged on the return pipeline, and one side of the outer wall of the water pump is connected with the side wall of the upper shell through a support.

Preferably, valves are arranged on the return pipeline, the first butt joint pipeline and the second butt joint pipeline.

Preferably, the opening position of one side of the outer wall of the upper shell is hinged with a protective door.

Compared with the prior art, the invention has the beneficial effects that:

(1) According to the invention, through the lower shell, the upper shell, the liquid inlet pipeline, the filter screen plate, the leaching sprayer and the leaching tower piece, when oily sludge is repaired and disposed, the oily sludge is directly introduced by the vertical structure of the leaching tower piece, the sludge is spread without facilitating subsequent leaching, the oily sludge can be automatically spread on the outer wall surface layer of the leaching tower piece under the action of leaching liquid and self gravity, time and labor are saved, the first tower layer, the second tower layer, the third tower layer, the fourth tower layer and the fifth tower layer are matched with each other, the radius of the cross section of each tower layer is gradually increased, the outer wall surface layer of the leaching tower piece is subjected to the condition of fluctuation and depression alternation, a muddy water mixture obtained by mixing the oily sludge and the leaching liquid flows through the five tower layers from top to bottom, in the flowing process, mud blocks are gradually decomposed into smaller particles under the action of the leaching liquid and self gravity, the filtering effect and the leaching effect of solid-liquid separation and leaching effect are improved, and the bottom of each leaching liquid block is designed by matching the special-shaped filtering liquid, and the bottom of the leaching liquid is more effectively closed, and the tailing is prevented from entering the bottom of the leaching holes, and the leaching agent is effectively filtered, and the tailing is effectively filtered.

(2) According to the invention, through the arrangement of the liquid discharge pipeline, the second butt joint pipeline, the second three-way connector, the backflow pipeline, the valve, the first butt joint pipeline, the first three-way connector and the leaching nozzle, secondary utilization can be realized under the driving of the water pump, the utilization rate of the leaching liquid is improved, the leaching liquid leaches oily sludge in a liquid drop mode, the using amount of the leaching liquid can be reduced, the cost is reduced, the appearance of the whole structure is cylindrical, the occupied area is small, the operation is more convenient, and the practicability is improved.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view illustrating a coupling structure of an upper case and a lower case according to the present invention;

FIG. 3 is a schematic cross-sectional view of the internal structure of the housing of the present invention;

FIG. 4 is a schematic side cross-sectional view of a leaching tower of the invention;

FIG. 5 is a schematic top cross-sectional view of a elution column of the present invention;

FIG. 6 is a schematic top cross-sectional view of a shaped orifice of the present invention;

fig. 7 is an enlarged view of the area a in fig. 4.

Description of the drawings: 1. leaching the solid-liquid separation mechanism; 11. a lower housing; 111. an annular support; 12. an upper housing; 121. a protective door; 13. a feed hopper; 14. a filter screen plate; 15. a liquid inlet pipeline; 151. a first docking conduit; 152. a first tee fitting; 153. leaching the spray head; 16. a liquid discharge conduit; 161. a second docking conduit; 162. a second tee fitting; 17. a return line; 171. a valve; 2. leaching the tower pieces; 21. a first tower layer; 22. a second tower layer; 23. a third tower layer; 24. a fourth tower layer; 25. a fifth tower layer; 26. a triangular bump; 27. special-shaped filter holes; 271. a top portion; 272. a bottom; 28. a flow channel; 3. a water pump; 4. and (4) tailings.

Detailed Description

In order that the invention may be more fully understood, reference will now be made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration, various embodiments of the invention which may be practiced in different forms and not limited to the embodiments described herein, but on the contrary, the embodiments are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the first embodiment, please refer to fig. 1-7 again, a novel oil-containing sludge leaching treatment device includes a leaching solid-liquid separation mechanism 1, the leaching solid-liquid separation mechanism 1 includes a lower shell 11, an upper shell 12 and a feed hopper 13, the upper shell 11 and the lower shell 12 are connected in a meshing manner, the feed hopper 13 is located at a circular hole position on the upper side of the upper shell 12, an annular support 111 is arranged in the lower shell 11, a filter screen plate 14 is arranged on the annular support 111, and a leaching tower 2 is arranged on the upper side of the filter screen plate 14; the leaching tower part 2 has five layers, the five layers are a first tower layer 21, a second tower layer 22, a third tower layer 23, a fourth tower layer 24 and a fifth tower layer 25 from top to bottom in sequence, the radius of the cross section of each tower layer is gradually increased, six, ten, fourteen, eighteen and twenty-two triangular bumps 26 are respectively wound on the first tower layer 21, the second tower layer 22, the third tower layer 23, the fourth tower layer 24 and the fifth tower layer 25 at equal intervals, the periphery of each triangular bump 26 is provided with a special-shaped filtering hole 27, the lower edge of each special-shaped filtering hole 27 is provided with a flow channel 28, each special-shaped filtering hole 27 comprises a top part 271 and two bottom parts 272, and two side walls of each bottom part 272 are bent downwards and close to the lowest point of the bottom part 272.

The structure realizes that the oily sludge can be directly guided in when the oily sludge is repaired and treated by the leaching solid-liquid separation mechanism 1, the sludge is paved without being leached conveniently, time and labor are saved, and the tailings 4 can be blocked while the oily sludge and the leaching agent are filtered by matching the special-shaped filtering holes 27 and the triangular convex blocks 26, so that the tailings 4 are prevented from being embedded into the filtering holes, the leaching effect is improved, the structure is vertical, in the solid-liquid separation process, a mud-water mixture flows from top to bottom, and can be gradually decomposed into smaller particles under the action of the gravity of the leaching agent and mud cakes, so that the filtering is convenient, the solid-liquid separation effect and the leaching effect are further improved, the occupied area is small, and the operation is more convenient;

the specific operation is as follows, firstly, the valve 171 on the first butt-joint pipeline 151 is opened, the valves 171 on other pipelines are closed, then the oil-containing sludge is led into the feed hopper 13, meanwhile, the leaching spray head 153 sprays leaching solution, because the leaching spray head 153 faces the top end of the leaching tower part 2, and the lower end of the feed hopper 13 corresponds to the top end of the leaching tower part 2, the oil-containing sludge and the leaching solution are mixed at the top of the tower to form a mud-water mixture, then the mud-water mixture is paved on the outer wall surface of the leaching tower part 2 under the influence of self gravity, meanwhile, large mud-soil blocks roll on the outer wall surface of the leaching tower part 2 to be dispersed, smaller particles enter the special-shaped filter holes 27, then enter the lower side of the inner cavity of the lower shell 11 along the flow channel 28, simultaneously, under the action of the bent bottoms 272 of the special-shaped filter holes 27 and the triangular bumps 26, the tailings 4 are not embedded into the special-shaped filter holes 27, finally, under the influence of self gravity, the tailings 4 are stacked on the filter screen plate 14 on the lower side of the leaching tower part 2, and then, the worker opens the protective door 121, and takes out the tailings 4.

In a second embodiment, please refer to fig. 1 and 2 again, a liquid discharge port of the lower casing 11 is provided with a liquid discharge pipe 16 and a second butt joint pipe 161, a second three-way joint 162 is provided between the liquid discharge pipe 16 and the second butt joint pipe 161, a return pipe 17 is provided between the second three-way joint 162 and the first three-way joint 152, a water pump 3 is provided on the return pipe 17, one side of an outer wall of the water pump 3 is connected to a side wall of the upper casing 12 through a bracket, valves 171 are provided on the return pipe 17, the first butt joint pipe 151 and the second butt joint pipe 161, if the leacheate needs to be reused, the valves 171 on the first butt joint pipe 151 and the second butt joint pipe 161 are closed, the valve 171 on the return pipe 17 is opened, then the water pump 3 is started, the used leacheate is pumped into the liquid inlet pipe 15 again for the second use, and an opening position of one side of an outer wall of the upper casing 12 is hinged to a protective door 121.

Third embodiment, please refer to fig. 2 and 3 again, the top of leaching tower spare 2 is the hemisphere, through the hemisphere design, has effectually avoided the mud to pile up the condition at the top of the tower, the inlet position of going up casing 12 outer wall one side is provided with liquid inlet pipeline 15 and first butt joint pipeline 151, just be provided with first tee bend interface 152 between liquid inlet pipeline 15 and the first butt joint pipeline 151, liquid inlet pipeline 15 is kept away from first tee bend interface 152 one end and is provided with leaching shower nozzle 153, and leaching nozzle 153 is towards the hemisphere top of the tower of leaching tower spare 2, is convenient for at top of the tower position oily mud and the contact of leaching solution and mixes.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without such modifications.

Claims

1. A novel oil-containing sludge leaching treatment device comprises a leaching solid-liquid separation mechanism (1), wherein the leaching solid-liquid separation mechanism (1) comprises a lower shell (11), an upper shell (12) and a feed hopper (13), the upper shell (11) and the lower shell (12) are in meshed connection, the feed hopper (13) is positioned at a round hole position at the upper side of the upper shell (12), the novel oil-containing sludge leaching treatment device is characterized in that an annular support (111) is arranged in the lower shell (11), a filter screen plate (14) is arranged on the annular support (111), and a leaching tower part (2) is arranged at the upper side of the filter screen plate (14);

the leaching tower part (2) comprises five layers in total, a first tower layer (21), a second tower layer (22), a third tower layer (23), a fourth tower layer (24) and a fifth tower layer (25) are sequentially arranged from top to bottom, the radius of the cross section of each tower layer is gradually increased, six, ten, fourteen, eighteen and twenty-two triangular projections (26) are respectively wound on the first tower layer (21), the second tower layer (22), the third tower layer (23), the fourth tower layer (24) and the fifth tower layer (25) at equal intervals, irregular filtering holes (27) are formed in the periphery of each triangular projection (26), a flow channel (28) is arranged on the lower edge of each irregular filtering hole (27), each irregular filtering hole (27) comprises a top (271) and two bottoms (272), two side walls of each bottom (272) are bent downwards and approach to the lowest point of the bottom (272).

2. The new type of oily sludge leaching treatment equipment according to claim 1, wherein the top end of the leaching tower member (2) is hemispherical.

3. The novel oily sludge leaching treatment device according to claim 1, wherein a liquid inlet pipeline (15) and a first connecting pipeline (151) are arranged at a liquid inlet position on one side of the outer wall of the upper shell (12), a first three-way joint (152) is arranged between the liquid inlet pipeline (15) and the first connecting pipeline (151), a leaching spray head (153) is arranged at one end, far away from the first three-way joint (152), of the liquid inlet pipeline (15), and the leaching spray head (153) faces towards the top of the hemispherical tower of the leaching tower part (2).

4. The novel oily sludge leaching treatment device according to claim 1, wherein a liquid discharge pipeline (16) and a second connection pipeline (161) are arranged at the position of the liquid discharge port of the lower shell (11), a second three-way connector (162) is arranged between the liquid discharge pipeline (16) and the second connection pipeline (161), and a return pipeline (17) is arranged between the second three-way connector (162) and the first three-way connector (152).

5. The novel oily sludge leaching treatment device according to claim 4, wherein a water pump (3) is arranged on the return pipeline (17), and one side of the outer wall of the water pump (3) is connected with the side wall of the upper shell (12) through a bracket.

6. The novel oily sludge leaching treatment device according to claim 5, wherein valves (171) are arranged on the return pipeline (17), the first connecting pipeline (151) and the second connecting pipeline (161).

7. The novel oily sludge leaching treatment device as claimed in claim 5, wherein a protective door (121) is hinged at the opening position on one side of the outer wall of the upper shell (12).