CN216711783U

CN216711783U - Landfill leachate concentrate preprocessing device

Info

Publication number: CN216711783U
Application number: CN202123309538.5U
Authority: CN
Inventors: 盛技科; 王鹏举; 刘芹
Original assignee: Henan Hongpeng Environmental Protection Engineering Co ltd
Current assignee: Henan Hongpeng Environmental Protection Engineering Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-10
Anticipated expiration: 2031-12-27

Abstract

The utility model relates to a landfill leachate concentrated solution pretreatment device. It includes the concentrate holding vessel, the medicine subassembly that adds and set up the stirring subassembly on the concentrate holding vessel lateral wall of setting above the concentrate holding vessel, the floating liquid extraction subassembly of setting in the concentrate holding vessel, the air supporting machine of being connected with the concentrate holding vessel through the floating liquid extraction subassembly and the subassembly is got in scraping of setting at the air supporting machine top, it includes the mounting panel to scrape the subassembly, the first motor of setting at the mounting panel top surface, the dual output shaft speed reducer of being connected with first motor, connect respectively the axis of rotation on two output shafts of speed reducer, coaxial fixed connection is respectively at the epaxial gear of rotation, parallel fixed setting is at the rack and the vertical filter screen of installing in the mounting panel bottom surface at air supporting machine both sides wall top, the gear meshes with the rack mutually. According to the utility model, the chemical adding assembly and the air flotation machine are arranged, so that the precipitation effect on solid impurities in the concentrated solution is better.

Description

Landfill leachate concentrate preprocessing device

Technical Field

The utility model relates to the technical field of landfill leachate treatment, in particular to a landfill leachate concentrated solution pretreatment device.

Background

In recent years, with the increase of urbanization degree and the improvement of living consumption level of residents in China, the generation amount of urban domestic garbage in China increases at a speed of about 9% -10% per year. Landfill is the main mode of garbage disposal in China at the present stage, however, the landfill disposal adopted can generate a large amount of landfill leachate with strong pollution. Because the treatment of the landfill leachate adopts a nanofiltration process, a certain amount of nanofiltration membrane concentrated solution is necessarily generated. The concentrated solution contains a large amount of organic matters which are difficult to degrade, ammonia nitrogen, total nitrogen, high-valence salt and the like, and can greatly affect the environment and a biochemical treatment system, so that the concentrated solution generally needs to be pretreated before being treated. The existing concentrated solution pretreatment only carries out simple precipitation on the concentrated solution generally, and the effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a landfill leachate concentrated solution pretreatment device which is better in precipitation effect on solid impurities in concentrated solution by arranging a dosing assembly and an air floatation machine.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a landfill leachate concentrate preprocessing device, includes the concentrate hold up tank, sets up at the concentrate hold up tank top add the medicine subassembly and set up stirring subassembly on the concentrate hold up tank lateral wall, the showy liquid extraction subassembly of setting in the concentrate hold up tank, through the air supporting machine that the showy liquid extraction subassembly is connected with the concentrate hold up tank and set up the subassembly of getting of scraping at the air supporting machine top, scrape the subassembly and include the mounting panel, set up at the first motor of mounting panel top surface, the dual output shaft speed reducer be connected with first motor, connect respectively at two output epaxial axes of rotation of speed reducer, coaxial fixed connection respectively at the epaxial gear of rotation, parallel fixed setting at the rack at air supporting machine both sides wall top and the vertical filter screen of installing in the mounting panel bottom surface, the gear meshes with the rack mutually.

Preferably, the whole L shape structure that is of filter screen, filter screen can dismantle the connection on the mounting panel, the bottom surface symmetrical fixation of mounting panel is provided with two couples, it is provided with rings to correspond on the vertical end lateral wall of filter screen, the filter screen is hung through rings and is established on the couple.

Preferably, the medicine feeding assembly comprises a medicine box, a plurality of fixing frames uniformly arranged above the concentrated solution storage pool, medicine pipelines uniformly distributed on the fixing frames and atomizer nozzles arranged on the medicine pipelines at intervals, the medicine pipelines are communicated with the medicine box, and the atomizer nozzles are vertically arranged downwards.

Preferably, the stirring subassembly includes second motor, coaxial fixed connection on the second motor output of fixed connection on the concentrate hold up tank lateral wall and with (mixing) shaft welded fastening's stirring fan blade, (mixing) shaft and stirring fan blade level set up the bottom at the concentrate hold up tank.

Preferably, the floating liquid extraction subassembly includes the suction pump, the feed liquor pipe of being connected with the suction pump inlet end and the drain pipe of being connected with the suction pump outlet end, the other end of drain pipe and the inlet intercommunication of air supporting machine, the one end that the suction pump was kept away from to the feed liquor pipe stretches into the concentrate storage pond and is located the top layer of concentrate storage pond.

In conclusion, the beneficial technical effects of the utility model are as follows:

through setting up medicine subassembly and stirring subassembly, make the mixture of flocculating agent and concentrate more even to it is better to make the flocculation effect. In addition, an air floatation machine is arranged for further processing the concentrated solution, and a scraping assembly is arranged for cleaning solid impurities floating on the water surface; simultaneously, set the filter screen to L shape structure to can dismantle the connection with filter screen and mounting panel, conveniently to the periodic cleaning of solid impurity.

Drawings

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

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

FIG. 2 is a schematic top view of the structure of FIG. 1;

fig. 3 is a schematic view showing the structure of the hook and the hanging ring.

In the figure, 1, a concentrated solution storage tank; 21. a kit; 22. a fixed mount; 23. a medicament conduit; 24. an atomizing spray head; 31. a second motor; 32. a stirring shaft; 33. a stirring fan blade; 41. a water pump; 42. a liquid inlet pipe; 43. a liquid outlet pipe; 5. an air flotation machine; 61. mounting a plate; 62. a first motor; 63. a speed reducer; 64. a rotating shaft; 65. a gear; 66. a rack; 67. a filter screen; 71. hooking; 72. a lifting ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, the landfill leachate concentrated solution pretreatment device disclosed by the present invention comprises a concentrated solution storage tank 1, a dosing assembly disposed above the concentrated solution storage tank 1, a stirring assembly disposed on a side wall of the concentrated solution storage tank 1, a floating solution extraction assembly disposed in the concentrated solution storage tank 1, an air flotation machine 5 connected to the concentrated solution storage tank 1 through the floating solution extraction assembly, and a scraping assembly disposed on a top of the air flotation machine 5. The dosing assembly is used for spraying a flocculating agent into the concentrated solution storage tank 1, so that fixed impurities in the concentrated solution are precipitated to the bottom of the tank, and the stirring assembly is used for fully mixing the flocculating agent with the concentrated solution. The floating liquid extraction assembly is used for extracting supernatant liquid of the concentrated liquid storage tank 1 and sending the supernatant liquid into the air flotation machine 5. The air floatation machine 5 is used for floating impurities floating in the supernatant to the top of the water surface, and then the floating impurities are cleaned out of the air floatation machine 5 by the scraping assembly.

The medicine adding assembly comprises a medicine box 21, a fixing frame 22 uniformly arranged above the concentrated solution storage pool 1, medicine pipelines 23 uniformly distributed on the fixing frame 22 and atomizing nozzles 24 arranged on the medicine pipelines 23 at intervals. The chemical pipeline 23 is communicated with the chemical box 21, and the atomizing nozzle 24 is arranged downwards vertically. By arranging the atomizing spray head 24, the spraying of the flocculating agent is more uniform. The stirring subassembly includes second motor 31 of fixed connection on the 1 lateral wall of concentrate holding vessel, coaxial fixed connection at the (mixing) shaft 32 of second motor 31 output and with (mixing) shaft 32 welded fastening's stirring fan blade 33, the (mixing) shaft 32 and stirring fan blade 33 level setting are in the bottom of concentrate holding vessel 1. Make the mixture of flocculating agent and concentrate more even through setting up stirring subassembly, the flocculation effect is better.

The floating liquid extraction assembly comprises a water suction pump 41, a liquid inlet pipe 42 connected with the water inlet end of the water suction pump 41 and a liquid outlet pipe 43 connected with the water outlet end of the water suction pump 41. The other end of the liquid outlet pipe 43 is communicated with a liquid inlet of the air flotation machine 5, and one end of the liquid inlet pipe 42, which is far away from the water suction pump 41, extends into the concentrated solution storage tank 1 and is positioned at the top layer of the concentrated solution storage tank 1. The upper layer of the concentrated solution after flocculation treatment belongs to clear solution, the solid is precipitated to the bottom of the tank, and the clear solution at the upper layer can be conveyed into the air flotation machine 5 through a water suction pump 41.

The scraping component comprises an installation plate 61, a first motor 62 arranged on the top surface of the installation plate 61, a double-output-shaft speed reducer 63 connected with the first motor 62, rotating shafts 64 respectively connected to two output shafts of the speed reducer 63, gears 65 respectively coaxially and fixedly connected to the rotating shafts 64, racks 66 which are parallelly and fixedly arranged on the tops of two side walls of the air flotation machine 5 and meshed with the gears 65, and a filter screen 67 vertically detachably connected to the bottom surface of the installation plate 61. The whole L-shaped structure that is of filter screen 67, the bottom surface symmetry of mounting panel 61 is fixed and is provided with two couples 71, corresponds on the vertical end lateral wall of filter screen 67 and is provided with rings 72, and filter screen 67 is hung through rings 72 and is established on couple 71. After the supernatant is treated by the air flotation machine 5, solid impurities float on the water surface, the first motor 62 is turned on at the moment, the first motor 62 drives the speed reducer 63 to work, the speed reducer 63 drives the gear 65 to rotate, and the gear 65 rotates to drive the mounting plate 61 and the filter screen 67 to move along the length direction of the rack 66. The solid impurities floating on the water surface can be collected by the filter screen 67, and the solid impurities in the filter screen 67 can be poured out by taking the hanging ring 72 down from the hook 71.

It should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious variations or modifications which fall within the spirit of the utility model are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a landfill leachate concentrate preprocessing device which characterized in that: including concentrate hold up tank, set up the medicine subassembly that adds above the concentrate hold up tank and set up stirring subassembly on the concentrate hold up tank lateral wall, set up the floating liquid extraction subassembly in the concentrate hold up tank, through the air supporting machine that the floating liquid extraction subassembly is connected with the concentrate hold up tank and set up the subassembly of getting of scraping at the air supporting machine top, scrape and get the subassembly including mounting panel, setting at the first motor of mounting panel top surface, the dual output shaft speed reducer be connected with first motor, connect respectively at two output shafts of speed reducer axis of rotation, coaxial fixed connection is respectively at the epaxial gear of rotation, parallel fixed setting at the rack and the vertical filter screen of installing in the mounting panel bottom surface at the air supporting machine both sides wall top, the gear meshes with the rack mutually.

2. A landfill leachate concentrate pretreatment device according to claim 1, wherein: the whole L shape structure that is of filter screen, filter screen can dismantle the connection on the mounting panel, the bottom surface symmetrical fixation of mounting panel is provided with two couples, it is provided with rings to correspond on the vertical end lateral wall of filter screen, the filter screen is hung through rings and is established on the couple.

3. A landfill leachate concentrate pretreatment device according to claim 1, wherein: the medicine adding assembly comprises a medicine box, a plurality of fixing frames uniformly arranged above the concentrated solution storage pool, medicine pipelines uniformly distributed on the fixing frames and atomizer arranged on the medicine pipelines at intervals, the medicine pipelines are communicated with the medicine box, and the atomizer is vertically arranged downwards.

4. A landfill leachate concentrate pretreatment device according to claim 1, wherein: the stirring subassembly includes second motor, coaxial fixed connection on the concentrate hold up tank lateral wall the (mixing) shaft of second motor output and with (mixing) shaft welded fastening's stirring fan blade of fixed connection, (mixing) shaft and stirring fan blade level set up the bottom at the concentrate hold up tank.

5. A landfill leachate concentrate pretreatment device according to claim 1, wherein: the floating liquid extraction assembly comprises a water suction pump, a liquid inlet pipe connected with a water inlet end of the water suction pump and a liquid outlet pipe connected with a water outlet end of the water suction pump, the other end of the liquid outlet pipe is communicated with a liquid inlet of the air floatation machine, and one end, far away from the water suction pump, of the liquid inlet pipe stretches into the concentrated liquid storage pool and is located on the top layer of the concentrated liquid storage pool.