CN216039000U

CN216039000U - Landfill leachate preprocessing device suitable for MVR evaporation treatment

Info

Publication number: CN216039000U
Application number: CN202122024393.8U
Authority: CN
Inventors: 吴学钦; 邓亚强
Original assignee: Fuzhou Kehuang Ecological Environmental Protection Technology Co ltd
Current assignee: Fuzhou Kehuang Ecological Environmental Protection Technology Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-03-15
Anticipated expiration: 2031-08-26

Abstract

The utility model relates to the technical field of sewage treatment equipment, in particular to a garbage leachate pretreatment device suitable for MVR evaporation treatment. Along with the continuous entering separation tank of landfill leachate, landfill leachate can erode the filter plate surface, erodes the deposit to the circular arc section in, through the auger device, moves the deposit to the blow off pipe again. Through the setting, when filtering the precipitate, can also erode the arc section with the help of rivers with the precipitate on V type section and the slope section to avoid the jam of filter, reduced the manual work and carried out the number of times of clearance to the filter screen.

Description

Landfill leachate preprocessing device suitable for MVR evaporation treatment

Technical Field

The utility model relates to the technical field of sewage treatment equipment, in particular to a landfill leachate pretreatment device suitable for MVR evaporation treatment.

Background

The landfill leachate is high-concentration organic landfill leachate which is formed by deducting the saturated water holding capacity of the garbage and a soil covering layer from the water contained in the garbage in a garbage landfill, rain, snow and water entering the landfill and other water and passing through the garbage layer and the soil covering layer. Wherein the landfill leachate has high heavy metal content; the landfill leachate contains more than 10 heavy metal ions. MVR is a short term of mechanical vapor recompression (mechanical vapor recompression), and is an energy-saving technology which utilizes secondary vapor generated by an evaporation system and energy thereof to perform compression work through a vapor compressor to improve heat energy of the secondary vapor, so that heat is circularly supplied to the evaporation system, and the requirement on external energy is reduced. In recent years, the MVR technology is applied to the engineering of landfill leachate, biogas slurry and industrial high-salt water treatment, and is accepted and approved by the industry with the advantages of low consumption, high efficiency, stable water quality, economic investment and the like.

In order to reduce the risk of scaling of the MVR evaporator, a pretreatment device is usually used to react heavy metal ions with a medicament to form a precipitate, and then the precipitate is separated. However, in the prior art, the filter screen is easily blocked when the precipitate is separated, and the filter screen is often cleaned manually.

Based on the technical scheme, the utility model designs rural domestic sewage treatment equipment based on an MBR technology to solve the technical problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a landfill leachate pretreatment device suitable for MVR evaporation treatment, which is used for solving the technical problem.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a landfill leachate preprocessing device suitable for MVR evaporation treatment, including stoste pond, charge device, reaction tank and separation tank, the stoste pond is connected with charge device through first water pump, and charge device passes through the conveyer pipe and is connected with the reaction tank, is provided with the second control valve on the conveyer pipe, and the reaction tank passes through the second water pump and is connected with the separation tank, the separation tank inner chamber is provided with the filter, the filter is including V type section, V type section both sides are provided with the circular arc section respectively, circular arc section slope upwards is connected with the slope section, circular arc section inner wall connection has auger device, the separation tank outer wall is provided with the blow off pipe, the blow off pipe runs through the separation tank lateral wall and is connected with the circular arc section, the blow off pipe is provided with first control valve.

Preferably, charge device is including adding the medicinal cupping, it is provided with agitating unit to add the medicinal cupping inner chamber, agitating unit is including first motor and agitator, first motor is fixed at adding the medicinal cupping top, the agitator rotates to be connected at adding the medicinal cupping inner chamber, first motor output runs through and is connected with the agitator with the medicinal cupping roof, it is provided with the pencil to add the medicinal cupping inner chamber, pencil one end extends to and adds the medicinal cupping outside, it is provided with a plurality of nozzles to add the medicinal cupping outer wall.

Preferably, the agitator is including rotating the connecting rod of being connected with the medicine feeding tank inner wall, connecting rod lower extreme fixedly connected with L type pole, L type pole outer wall is provided with a plurality of stirring vane, each the nozzle all sets up between two adjacent stirring vane.

Preferably, the stirring blade is fixed on the outer wall of the L-shaped rod in an inclined and upward manner.

Preferably, the auger device comprises a second motor and a screw shaft, the second motor is fixed on the outer wall of the separation tank, the screw shaft is arranged in the inner cavity of the arc section, and the output end of the second motor penetrates through the side wall of the separation tank and is connected with the screw shaft.

Compared with the prior art, the utility model has the beneficial effects that: after the reaction of the landfill leachate and the medicament is finished, the landfill leachate is conveyed to the separation tank under the driving of the second water pump. The precipitate is separated from the landfill leachate by a filter plate. And as the landfill leachate continuously enters the separation tank, the landfill leachate washes the surface of the filter plate, washes the precipitate into the arc section, and moves the precipitate into the drain pipe through the auger device. Through the setting, when filtering the precipitate, can also erode the arc section with the help of rivers with the precipitate on V type section and the slope section to avoid the jam of filter, reduced the manual work and carried out the number of times of clearance to the filter screen.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a schematic view of the structure of the drug adding device of the present invention;

FIG. 3 is a first schematic structural diagram of the separation tank, the filter plate and the auger device of the present invention;

FIG. 4 is a schematic structural diagram of a separating tank, a filter plate and an auger device according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a stock solution tank; 2. a dosing device; 3. a reaction tank; 4. a separation tank; 5. a filter plate; 6. a V-shaped section; 7. a circular arc section; 8. an inclined section; 9. an auger device; 10. a blow-off pipe; 11. a first control valve; 12. a medicine adding tank; 13. a stirring device; 15. a first motor; 16. a stirrer; 17. a medicine feeding pipe; 18. a nozzle; 19. a connecting rod; 20. an L-shaped rod; 21. a stirring blade; 22. a second motor; 23. a screw shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a landfill leachate preprocessing device suitable for MVR evaporation treatment, including former liquid pond 1, charge device 2, reaction tank 3 and

separation tank

4, 4 inner chambers in separation tank are provided with filter 5, filter 5 is including

V type section

6, 6 both sides in V type section are provided with circular arc section 7 respectively, circular arc section 7 slope upwards is connected with

slope section

8, 7 inner wall connections in circular arc section have

auger device

9, 4 outer walls in separation tank are provided with blow off pipe 10, blow off pipe 10 runs through 4 lateral walls in separation tank and is connected with circular arc section 7, blow off pipe 10 is provided with first control valve 11.

Specifically, charge device 2 is including adding medicinal cupping 12, add the 12 inner chambers of medicinal cupping and be provided with agitating unit 13, agitating unit 13 is including first motor 15 and agitator 16, first motor 15 is fixed at adding medicinal cupping 12 tops, agitator 16 rotates to be connected at adding medicinal cupping 12 inner chambers, 15 output ends of first motor run through and add medicinal cupping 12 roof and be connected with agitator 16, add the inner chamber of medicinal cupping 12 and be provided with pencil 17, add pencil 17 one end and extend to and add medicinal cupping 12 outsidely and be connected with the doser, it is provided with a plurality of nozzles 18 to add the 17 outer walls of pencil. The agent is sprayed out from the nozzle 18, and the first motor 15 drives the stirrer 16 to rotate, so as to stir the landfill leachate. Through the arrangement, the garbage percolate can be fully mixed with the medicament.

Specifically, the stirrer 16 comprises a connecting rod 19 rotatably connected with the inner wall of the dosing tank 12, the lower end of the connecting rod 19 is fixedly connected with an L-shaped rod 20, a plurality of stirring blades 21 are arranged on the outer wall of the L-shaped rod 20, and each nozzle 18 is arranged between two adjacent stirring blades 21.

Specifically, the stirring blade 21 is fixed to the outer wall of the L-shaped bar 20 obliquely upward.

Specifically, the auger device 9 comprises a second motor 22 and a screw shaft 23, the second motor 22 is fixed on the outer wall of the separation tank 4, the screw shaft 23 is arranged in the inner cavity of the arc section 7, and the output end of the second motor 22 penetrates through the side wall of the separation tank 4 and is connected with the screw shaft 23. When the landfill leachate enters the separation tank 4 from the reaction tank 3, the sediment formed by heavy metal ions is intercepted by the filter plate 5. Meanwhile, under the washing of the water flow, the sediment flows into the circular arc section 7 along the inclined surfaces of the V-shaped section 6 and the inclined section 8. Subsequently, the second motor 22 is started to drive the spiral shaft 23 to rotate, and the sediment accumulated in the arc section 7 is pushed into the sewage discharge pipe 10. Through the setting, when filtering the precipitate, can also erode the arc segment 7 with the help of rivers with the precipitate on V type section 6 and the slope section 8 to avoid the jam of filter 5, reduced the manual work and carried out the number of times of clearing up to the filter screen.

One specific application of this embodiment is: the raw liquid pool 1 is internally provided with garbage percolate. The first water pump pumps the landfill leachate into the dosing device 2. After the garbage percolate is filled in the dosing tank 12, the dosing device injects a medicament into the dosing pipe 17, and the medicament is sprayed out through the nozzle 18. In the spraying process of the medicament, the first motor 15 drives the stirrer 16 to rotate, so as to stir the landfill leachate, and the medicament is fully mixed with the landfill leachate.

After the medicament is mixed with the landfill leachate, the second control valve is opened, and the mixed landfill leachate flows into the reaction tank 3. After the reaction is finished, the second water pump conveys the landfill leachate of the reaction tank 3 to the separation tank 4. When the landfill leachate enters the separation tank 4 from the reaction tank 3, the sediment formed by heavy metal ions is intercepted by the filter plate 5. Meanwhile, under the washing of the water flow, the sediment flows into the circular arc section 7 along the inclined surfaces of the V-shaped section 6 and the inclined section 8. Subsequently, the second motor 22 is started to drive the spiral shaft 23 to rotate, and the sediment accumulated in the arc section 7 is pushed into the sewage discharge pipe 10. Through the setting, when filtering the precipitate, can also erode the arc segment 7 with the help of rivers with the precipitate on V type section 6 and the slope section 8 to avoid the jam of filter 5, reduced the manual work and carried out the number of times of clearing up to the filter screen.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a landfill leachate preprocessing device suitable for MVR evaporation treatment, including former liquid pool (1), charge device (2), reaction tank (3) and separation tank (4), its characterized in that: the separating tank is characterized in that a filter plate (5) is arranged in an inner cavity of the separating tank (4), the filter plate (5) comprises a V-shaped section (6), two sides of the V-shaped section (6) are respectively provided with an arc section (7), the arc section (7) is upwards connected with an inclined section (8) in an inclined mode, the inner wall of the arc section (7) is connected with an auger device (9), the outer wall of the separating tank (4) is provided with a drain pipe (10), the drain pipe (10) penetrates through the side wall of the separating tank (4) to be connected with the arc section (7), and the drain pipe (10) is provided with a first control valve (11).

2. The landfill leachate pretreatment device suitable for MVR evaporation treatment according to claim 1, wherein: dosing device (2) is including adding medicinal cupping (12), it is provided with agitating unit (13) to add medicinal cupping (12) inner chamber, agitating unit (13) is including first motor (15) and agitator (16), first motor (15) are fixed at adding medicinal cupping (12) top, agitator (16) rotate to be connected at adding medicinal cupping (12) inner chamber, first motor (15) output runs through and is connected with medicinal cupping (12) roof and agitator (16), it is provided with cartridge feed pipe (17) to add medicinal cupping (12) inner chamber, cartridge feed pipe (17) one end extends to adding medicinal cupping (12) outside, cartridge feed pipe (17) outer wall is provided with a plurality of nozzles (18).

3. The landfill leachate pretreatment device suitable for MVR evaporation treatment according to claim 2, wherein: the stirrer (16) comprises a connecting rod (19) rotatably connected with the inner wall of the dosing tank (12), an L-shaped rod (20) is fixedly connected to the lower end of the connecting rod (19), a plurality of stirring blades (21) are arranged on the outer wall of the L-shaped rod (20), and each nozzle (18) is arranged between every two adjacent stirring blades (21).

4. The landfill leachate pretreatment device suitable for MVR evaporation treatment according to claim 3, wherein: the stirring blades (21) are obliquely and upwards fixed on the outer wall of the L-shaped rod (20).

5. The landfill leachate pretreatment device suitable for MVR evaporation treatment according to claim 1, wherein: the auger device (9) comprises a second motor (22) and a screw shaft (23), the second motor (22) is fixed on the outer wall of the separation tank (4), the screw shaft (23) is arranged in the inner cavity of the circular arc section (7), and the output end of the second motor (22) penetrates through the side wall of the separation tank (4) and is connected with the screw shaft (23).