CN219357370U - Refuse landfill humus soil disposal device - Google Patents

Abstract

The utility model relates to the technical field of safe disposal and utilization of humus in a refuse landfill, in particular to a disposal device of the humus in the refuse landfill, which can enable materials to perform irregular and fierce cyclic motion in a purifying and repairing device under the action of a spoiler through rotation of an impeller, and enable the materials to perform sufficient impact collision and mixing between the humus and the humus, between the humus and water and between the humus and a leaching agent, so that plastic fragments wrapped in the humus are completely released, the humus and the leaching agent are sufficiently contacted and reacted, the leaching agent enables heavy metals such as chromium, lead and the like contained in the soil to be sufficiently released, finally, the plastic fragments float on the surface layer of a liquid level, and the heavy metals such as chromium, lead and the like enter into a water phase in an ionic state, so that the heavy metals are separated from the humus. And then the plastic chips are thoroughly separated and removed by combining with the basket filter, and meanwhile, the process water is recycled by the circulating water valve.

Description

Refuse landfill humus soil disposal device

Technical Field

The utility model relates to the technical field of safe disposal and utilization of humus soil in a refuse landfill, in particular to a disposal device for the humus soil in the refuse landfill.

Background

At present, the landfill method is a mainstream mode for disposing early-stage household garbage, but with the rapid development of urban construction and the improvement of living standard of residents, the problems of environmental pollution and land waste caused by the irregular household garbage landfill sites generated by simply filling the household garbage in the early stage are more serious. At present, the incineration disposal of household garbage gradually develops into a main stream mode of household garbage disposal, and the excavation treatment of a non-regular household garbage landfill becomes a focus of attention of the environmental protection industry.

Combustible materials separated in the treatment process of the denormal household garbage landfill are sent to a household garbage incineration power plant for incineration disposal or are made into RDF and other fuels for sale, part of plastic fragments are contained in humus soil, and in addition, the humus soil is polluted by heavy metals such as chromium, lead and the like to a certain extent, and if the combustible materials are directly used as greening planting soil, secondary pollution is easily caused to soil environment. In order to realize safe disposal and utilization of humus, development and research on an economic and effective humus impurity removal and restoration device are needed, so that the humus after impurity removal and restoration meets the greening planting soil with environmental protection requirements.

Disclosure of Invention

The utility model aims to provide a garbage landfill humus soil disposal device, which can enable materials to perform irregular and violent circulating motion in a impurity removal repair device under the action of a spoiler through rotation of an impeller, and enable plastic fragments wrapped in humus soil to be completely released through sufficient impact collision and mixing between humus soil and between humus soil and a leaching agent, wherein the humus soil and the leaching agent are fully contacted and reacted, the leaching agent enables heavy metals such as chromium and lead contained in soil to be fully released, finally, the plastic fragments float on the surface layer of a liquid level, and the heavy metals such as chromium and lead enter into a water phase in an ionic state, so that heavy metals are separated from the humus soil. And then the plastic chips are thoroughly separated and removed by combining with the basket filter, and meanwhile, the process water is recycled by the circulating water valve.

To achieve the purpose, the utility model adopts the following technical scheme:

the device for disposing the humus soil in the refuse landfill is characterized by comprising a reaction module, a filtering module and a separation module.

The reaction module consists of a impurity removal repair device, a leaching agent adding device and a water adding device.

The top of the impurity removal repairing device is provided with a leaching agent adding device and a water adding device, and a humus soil feeding hole, a primary overflow valve, a spoiler, a secondary overflow valve, a circulating water valve, a primary slag discharging valve, an impeller, a primary sieve plate and a mud bucket and a mud discharging drain valve are sequentially arranged in the impurity removal repairing device from top to bottom.

The primary screen plate is provided with primary adjustable screen holes, and the range of the primary adjustable screen holes is 2-4mm.

The filter module comprises a water draining tank and a basket filter.

The separation module comprises a solid-liquid separator.

The impurity removal repair device is connected with the basket filter through a primary overflow valve.

The impurity removal repair device is connected with the draining tank through a secondary overflow valve and a circulating water valve.

The impurity removal repair device is connected with the solid-liquid separator through a mud drainage valve.

Furthermore, the spoiler is arranged on the inner wall of the impurity removal and restoration device, the thickness is 3-4mm, the width is 20-25mm, and the length is 1/4-1/3 of the height of the impurity removal and restoration device.

Still further, a landfill humus soil handling device, basket filter sets up in the inside top region of drain tank, the bottom is equipped with the second grade sieve, is equipped with the second grade sieve mesh on the second grade sieve, the diameter of second grade sieve mesh is 2mm.

Further, in the garbage landfill humus disposal device, the circulating water valve is positioned at the bottom of the side wall of the draining tank;

further, the first-stage slag discharging valve is positioned on the inner wall above the first-stage sieve plate;

furthermore, the second-stage slag discharging valve is positioned on the inner wall above the second-stage sieve plate.

The beneficial effects of the utility model are as follows:

1. the method is characterized in that the available clean humus is obtained by treating humus containing plastic fragments and polluted by heavy metals such as chromium, lead and the like to a certain extent, so that the effect of protecting the environment is achieved.

2. Through the humus soil treatment device and the corresponding treatment process flow, the effect of recycling harmful resources is achieved.

3. According to the utility model, through reasonable layout among the devices, the water in the humus soil treatment process can be recycled, the economy is improved, and the effects of reducing the cost and enhancing the efficiency are achieved.

Drawings

Fig. 1 is a device layout of the present utility model.

The device comprises a humus soil feeding port 1, a spoiler 2, an impeller 3, a first-stage adjustable sieve opening 4, a first-stage sieve plate 5, a first-stage slag discharge valve 6, an impeller motor 7, a mud bucket 8, a leaching agent adding device 9, a water adding device 10, a impurity removing and repairing device 11, a first-stage overflow valve 12, a second-stage overflow valve 13, a circulating water valve 14, a mud discharge drain valve 15, a second-stage sieve plate 16, a basket filter 17, a second-stage slag discharge valve 18, a water drain tank 19, a second-stage sieve opening 20 and a solid-liquid separator 21.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and the specific embodiments.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

The device for disposing the humus soil in the refuse landfill is characterized by comprising a reaction module, a filtering module and a separation module.

The reaction module consists of a impurity removal repair device 11, a leaching agent adding device 9 and a water adding device 10.

The top of the impurity removal and restoration device 11 is provided with a leaching agent adding device 9 and a water adding device 10, and the inside of the impurity removal and restoration device 11 is sequentially provided with a humus soil feed inlet 1, a primary overflow valve 12, a spoiler 2, a secondary overflow valve 13, a circulating water valve 14, a primary slag discharge valve 6, an impeller 3, a primary sieve plate 5, a mud bucket 8 and a mud discharge and drainage valve 15 from top to bottom.

The primary screen plate 5 is provided with primary adjustable screen holes 4, and the range of the primary adjustable screen holes 4 is 2-4mm.

The filtration module comprises a drain tank 19, a basket filter 17.

The separation module includes a solid-liquid separator 21.

The impurity removal repair device 11 is connected with the basket filter 17 through the primary overflow valve 12.

The impurity removal repair device 11 is connected with the drain tank 19 through the secondary overflow valve 13 and the circulating water valve 14.

The impurity removal repair device 11 is connected with the solid-liquid separator 21 through a mud drainage valve 15.

Furthermore, the spoiler 2 is arranged on the inner wall of the impurity removal and restoration device 11, the thickness is 3-4mm, the width is 20-25mm, and the length is 1/4-1/3 of the height of the impurity removal and restoration device 11.

Still further, a landfill humus soil disposal device 11, basket filter 17 set up in the inside top region of drain tank 19, the bottom is equipped with second grade sieve 16, is equipped with second grade sieve mesh 20 on the second grade sieve 16, the diameter of second grade sieve mesh 20 is 2mm.

Further, in the refuse landfill humus disposal device 11, the circulating water valve 14 is located at the bottom of the sidewall of the drain tank 19;

further, the first-stage slag discharging valve 6 is positioned on the inner wall above the first-stage sieve plate 5, and the second-stage slag discharging valve is positioned on the outer wall above the first-stage sieve plate 5;

further, in the device 11 for disposing humus soil in a landfill, the secondary slag discharging valve 18 is positioned on the inner wall above the secondary screen plate 16.

As shown in figure 1, before humus soil enters the impurity removal and restoration device 11, the aperture of a first-stage adjustable sieve aperture 4 on a first-stage sieve plate 5 is adjusted to be 0mm, a first-stage overflow valve 12, a circulating water valve 14 and a sludge discharge drain valve 15 are closed, clean water with the volume of 30% -50% of the impurity removal and restoration device 11 is injected into the interior through a water adding device 10, mixed liquid eluent with the concentration of 0.045 mol/L-0.065 mol/L citric acid monohydrate and 0.045 mol/L-0.065 mol/L ferrous sulfate is added into the interior through a eluent adding device 9, and the addition amount of the mixed liquid accounts for 0.25% -0.5% of the volume of the clean water. The humus left after the separation processes of roller screening, magnetic separation, air separation and the like enters the impurity removal restoration device 11 through the humus feed inlet 1 by spiral conveying, the impeller motor 7 is started, the rotating speed of the impeller 3 is set to 280 r/min-360 r/min, and the impeller is made of SS316. The inner wall of the impurity removal repairing device 11 is provided with a spoiler 2, the material of the spoiler 2 is SS304, the thickness of the spoiler 2 is 3-4mm, the width of the spoiler 2 is 20-25mm, and the length of the spoiler 2 is 1/4-1/3 of the height of the impurity removal repairing device 11. With the rotation of the impeller 3 and under the action of the spoiler 2, the materials can perform irregular and fierce cyclic motion in the impurity removal and restoration device 11, and the impact collision and mixing are performed between humus soil and humus soil, between humus soil and water, and between humus soil and the leaching agent, so that plastic fragments wrapped in the humus soil are completely released, the humus soil and the leaching agent are fully contacted and reacted, the leaching agent fully releases chromium, lead and other heavy metals contained in the soil, and the chromium, lead and other heavy metals enter into the water phase in an ionic state, so that the heavy metals are separated from the humus soil. After the water flushing reaction in the impurity removing and repairing device 11 is carried out for 25 min-40 min, the impeller motor 7 is stopped, the device is kept still for 20-35 min, different materials in the impurity removing and repairing device 11 are obviously layered under the action of gravity, plastic fragments released from humus soil float on the surface layer of the liquid level, humus soil is deposited at the bottom of the device, and a water layer is arranged between the plastic fragment layer and the humus soil layer. The first-stage overflow valve 12 is opened, plastic fragments floating on the surface layer of the liquid level automatically flow into the basket filter 17 along with water flow, the aperture of the second-stage sieve plate 16 of the basket filter 17 is 2mm, water enters the water draining tank 19 through the second-stage regulating sieve holes, the plastic fragments are trapped on the basket filter 17 by the second-stage sieve plate 16, and the plastic fragments on the second-stage sieve plate are removed through the second-stage slag discharging valve 18, so that the plastic fragments in humus soil are removed. And opening the secondary overflow valve 13, and automatically flowing 30% -40% of water in the water layer in the impurity removal repair device 11 into the draining tank 19. Opening a first-stage adjustable sieve opening 4 in the impurity removal restoration device 11, adjusting the aperture diameter of the sieve opening to 2-4mm, starting an impeller motor 7, enabling water-containing humus to flow into a mud bucket 8 through the first-stage adjustable sieve opening 4, intercepting sand stone and other impurities with particle sizes larger than 4mm by a first-stage sieve plate 5, discharging the sand stone and other impurities through a first-stage slag discharging valve 6, opening a mud discharging valve 15, conveying the water-containing humus to a solid-liquid separator 21 for solid-liquid separation, wherein the solid phase is clean humus, the liquid phase enters a sewage treatment system for treatment and reaches the standard, the produced standard water can be recycled as clear water, and the water in a draining tank 19 can automatically flow to the impurity removal restoration device 11 through the height difference between the draining tank 19 and the impurity removal restoration device 11 through a circulating water valve 14 in the impurity removal restoration procedure of the next batch of humus materials.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims (6)

1. The device for disposing the humus soil in the refuse landfill is characterized by comprising a reaction module, a filtering module and a separation module;

the reaction module consists of a impurity removal repair device, a leaching agent adding device and a water adding device;

the top of the impurity removal repairing device is provided with a leaching agent adding device and a water adding device, and a humus soil feeding hole, a primary overflow valve, a spoiler, a secondary overflow valve, a circulating water valve, a primary slag discharge valve, an impeller, a primary sieve plate and a mud bucket and a mud discharge drain valve are sequentially arranged in the impurity removal repairing device from top to bottom;

the primary screen plate is provided with primary adjustable screen holes, and the range of the primary adjustable screen holes is 2-4mm;

the filtering module comprises a water draining tank and a basket type filter;

the separation module comprises a solid-liquid separator;

the impurity removal repair device is connected with the basket filter through a primary overflow valve;

the impurity removal repair device is connected with the draining tank through a secondary overflow valve and a circulating water valve;

the impurity removal repair device is connected with the solid-liquid separator through a mud drainage valve.

2. The garbage landfill humus soil disposal device according to claim 1, wherein the spoiler is arranged on the inner wall of the impurity removal repairing device, has a thickness of 3-4mm, a width of 20-25mm and a length of 1/4-1/3 of the height of the impurity removal repairing device.

3. The garbage landfill humus soil disposal device of claim 1, wherein the basket filter is arranged in an area above the inside of the water draining tank, a secondary screen plate is arranged at the bottom of the basket filter, and a secondary screen hole is arranged on the secondary screen plate, and the diameter of the secondary screen hole is 2mm.

4. The landfill humus disposal device of claim 1, wherein the circulation water valve is located at the bottom of the sidewall of the drain tank.

5. A landfill humus disposal device according to claim 1, wherein the primary slag valve is located on the upper inner wall of the primary screen deck.

6. A landfill humus disposal device according to claim 1, wherein the secondary slag discharge valve is located on the upper inner wall of the secondary screen plate.