CN216745201U - Drying and homogenizing equipment for screening and reducing materials of stored garbage - Google Patents
Drying and homogenizing equipment for screening and reducing materials of stored garbage Download PDFInfo
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- CN216745201U CN216745201U CN202121355416.7U CN202121355416U CN216745201U CN 216745201 U CN216745201 U CN 216745201U CN 202121355416 U CN202121355416 U CN 202121355416U CN 216745201 U CN216745201 U CN 216745201U
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Abstract
The utility model relates to the technical field of stock waste treatment, in particular to equipment for drying and homogenizing stock waste screening decrement materials. The equipment comprises a bin, and a grab bucket device, a fan and an exhaust device which are arranged in the bin. Centralized drying treatment is carried out on the amount-reduced materials screened by the stored garbage in the bin, and the cooperation of the fan and the exhaust device accelerates the air flow in the bin, shortens the airing time, improves the treatment efficiency and improves the quality of the amount-reduced materials screened by the stored garbage; and meanwhile, a leachate collecting tank is arranged, so that the environment pollution caused by discharge of garbage leachate in the stored garbage is avoided.
Description
Technical Field
The utility model relates to the technical field of stock waste treatment, in particular to equipment for drying and homogenizing stock waste screening decrement materials.
Background
The screening and decrement treatment system of the stock garbage is mainly applied to comprehensive treatment of a simple household garbage landfill, heavy materials, medium materials, light materials, metals and the like are sorted out after the stock garbage is screened, and decrement, recycling and harmless treatment of the stock garbage are achieved. Rainfall is more in south, the moisture content of the stored garbage is generally more than 50%, and in order to ensure the screening effect, the moisture content of the fed material of the screening equipment is controlled below 30%.
In the prior art, the moisture in the garbage is removed mostly in a shallow layer stacking natural air drying mode. By constructing a hard-bottomed concrete airing field and transporting and spreading the garbage storage after excavating on the airing field, the existing airing process has the following defects:
1) the moisture removal time is long, and the moisture content of the garbage can be reduced from 50% to below 30% only after 10-15 days on the premise of clear weather. And rainfall is more in the south, and the influence of rainy seasons is considered, so that the effect of shallow stacking and natural air drying is further reduced.
2) The sunning district area of taking up is big. Taking the processing scale of 1000t/d as an example, the specific gravity of the garbage stock is about 0.75, the thickness of the pile body is 0.5m, the airing time is 12 days, and the expected occupied area of the airing area needs 32000m2. Under the situation of increasingly tense land, the requirement of the land for the large drying area undoubtedly increases the implementation difficulty of the project.
3) The potential risk of secondary pollution is large. The garbage stored in the garbage can be naturally air-dried in the open air, the problems of odor overflow and leachate collection caused by the garbage stored in the open air are easily objectionable stored in the garbage. Meanwhile, the pile body needs to be temporarily covered in advance in rainy days, and the field operation environment is relatively severe.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide equipment for drying and homogenizing stock garbage screening decrement materials, which can be used for carrying out centralized drying treatment on the stock garbage, shortening the airing time of the stock garbage and improving the treatment efficiency.
The purpose of the utility model is realized by adopting the following technical scheme:
a drying and homogenizing device for screening and reducing materials of stored garbage comprises a bin, a grab bucket device arranged in the bin, a fan arranged at the bottom of the bin and an exhaust device arranged at the upper part of the bin; the bin is provided with a ventilating duct communicated with an air outlet of the fan; the bin is provided with a feeding hole and a discharging hole; the bottom of bin is equipped with the leachate collecting vat, the outside of bin is provided with the leachate collecting tank, the leachate collecting vat with the leachate collecting tank is connected.
In the equipment, the grab bucket device is used for transferring the stored garbage, the fan is used for ventilating the interior of the bin, the exhaust device is used for replacing the gas in the bin to the outside, and the fan is matched with the exhaust device to accelerate the moisture evaporation of the stored garbage. Generally, the total amount of outlet air of the fan is the same as the total amount of exhaust air of the exhaust device. The leachate collecting tank is used for collecting and draining garbage leachate generated during the airing of the stored garbage.
Specifically, the top of the bin is provided with an adjustable baffle, the baffle is closed when raining, so that the stored garbage is prevented from being wetted by rainwater, and the baffle is opened when rainless weather, so that the top of the bin is in an open state.
Furthermore, the equipment for drying and homogenizing the amount-reduced materials for screening the stored garbage further comprises a travelling crane guide rail and a pulley device arranged on the travelling crane guide rail, and the grab bucket device is arranged on the pulley device. The travelling crane guide rail is arranged between the feeding hole and the discharging hole of the bin, and the pulley device slides on the travelling crane guide rail, so that the grab bucket device can transfer the stored garbage at the feeding hole and the discharging hole.
Still further, the surface of the inside wall of bin all is equipped with the heated board.
Further, the pipe wall of the ventilation pipeline facing upwards is provided with a plurality of uniformly distributed exhaust holes.
Still further, lay the bed course of constituteing by a plurality of rubbles above the air pipe, the diameter of rubble is greater than the diameter of hole of airing exhaust, the bed course can prevent that the hole of airing exhaust is blockked up to stock rubbish.
Further, the fan is a cold and hot fan. The exhaust device is an exhaust fan.
Still further, the bottom surface of bin is equipped with the recess that a plurality of was evenly arranged along width direction, is equipped with one in every recess respectively the fan with the air exit intercommunication of fan air pipe.
The drying and homogenizing process of sorting material includes the following steps:
1) conveying the stored garbage to a feed inlet of a bin, and grabbing the stored garbage by a grab bucket device to fall on the bottom surface of the bin and fully distribute the stored garbage in the whole bin until the stored garbage is accumulated to form a material accumulation layer with the thickness of 20-60 cm; garbage leachate generated in the storage process of the stored garbage in the bin is conveyed to the leachate collecting tank through the leachate collecting tank;
2) starting a fan, wherein the fan supplies air for a ventilating pipeline, and the ventilating pipeline conveys the air to the material stacking layer; simultaneously, the exhaust device is opened to continuously exhaust the air in the bin;
3) after the drying is finished, the dried material is grabbed to a discharge hole of the bin through the grab bucket device and is conveyed out.
Further, in the step 1), controlling the temperature in the cabin to be 40-65 ℃; in the step 2), the air in the cabin is replaced once within 3-5 hours of the total exhaust amount of the exhaust device.
Further, in the step 1) and the step 2), spraying a plant-type deodorant on the surface of the material stacking layer.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the equipment for drying and homogenizing the garbage screening and reducing materials has small occupied area, performs centralized drying treatment on the garbage screening and reducing materials in the bin, accelerates the air flow in the bin through the cooperation of the fan and the exhaust device, and shortens the airing time; and meanwhile, a leachate collecting tank is arranged, so that the environment pollution caused by discharge of garbage leachate in the stored garbage is avoided.
(2) The potential risk of secondary pollution of the stock garbage treated by the equipment is small, controllable and preventable. The garbage storage is stored in the bin, and leachate and odor problems can be effectively controlled by arranging a leachate collecting tank in the bin and regularly spraying a plant liquid deodorant.
Drawings
FIG. 1 is a perspective view of the apparatus of the present invention;
fig. 2 is a schematic view of the positions of the ventilation ducts and the leachate collection tank.
In the figure: 1. a bin; 11. a baffle plate; 12. a feed inlet; 13. a discharge port; 2. a grab bucket device; 3. a fan; 4. a ventilation duct; 41. an air exhaust hole; 42. leachate drainage holes; 43. a cushion layer; 5. an exhaust device; 6. a leachate collecting tank; 61. a leachate collection tank; 7. a travelling guide rail; 8. a pulley device.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in figure 1, the utility model provides a drying and homogenizing device for screening and reducing materials of stored garbage, which comprises a bin 1, a grab bucket device 2 arranged in the bin 1, a fan 3 arranged at the bottom of the bin 1 and an exhaust device 5 arranged at the upper part of the bin 1; the bin 1 is provided with a ventilation pipeline 4 communicated with an air outlet of the fan 3; a feed inlet 12 and a discharge outlet 13 are respectively arranged on the inner side wall of the bin 1; the bottom of the bin 1 is provided with a leachate collecting tank 6, and the leachate collecting tank 6 is connected with a leachate collecting tank 61.
As shown in fig. 2, a plurality of uniformly arranged grooves are formed in the bottom surface of the bin 1 along the width direction, a fan 3 and a ventilation duct 4 communicated with an air outlet of the fan 3 are respectively arranged in each groove, and a plurality of uniformly arranged air outlet holes 41 are formed in the upward pipe wall of the ventilation duct 4. A plurality of evenly arranged leachate discharge holes 42 are arranged on the pipe wall of the ventilation pipeline 4 which is far away from one side of the fan 3 and faces downwards; the diameters of the air exhaust hole 41 and the leachate discharge hole 42 are 2-4mm, a cushion layer 43 consisting of a plurality of gravels is paved above and below the ventilation pipeline 4 in advance, and the diameters of the gravels are larger than those of the air exhaust hole 41 and the leachate discharge hole 42, so that the air exhaust hole 41 and the leachate discharge hole 42 are prevented from being blocked by garbage;
the leachate collecting tank 6 is arranged at the bottom of the bin 1 along the length direction, a steel grating cover plate is arranged on the upper cover of the leachate collecting tank 6, the leachate collecting tank 6 is arranged below the leachate discharge holes 42 of the ventilation pipeline 4, the leachate flowing to the leachate discharge holes 42 is guided and discharged into the leachate collecting tank 6 through pre-embedded plastic pipes, the leachate collected in the leachate collecting tank 6 is discharged into a leachate collecting tank 61 outside the bin 1, and the leachate can be discharged out after being treated to reach the standard or transported out to a sewage plant with treatment capacity to reach the standard.
In the equipment, a grab bucket device 2 is used for transferring the stored garbage, a fan 3 is used for ventilating the interior of a bin 1, an exhaust device 5 is used for replacing the gas in the bin 1 to the outside, and the fan 3 is matched with the exhaust device 5 to accelerate the moisture evaporation of the stored garbage. Generally, the total amount of outlet air of the fan 3 is the same as the total amount of exhaust air of the exhaust device 5. The leachate collecting tank 6 is used for collecting and draining garbage leachate generated during the airing of the stored garbage.
Further, the equipment for drying and homogenizing the amount-reduced materials screened by the garbage storage also comprises a travelling crane guide rail 7 and a pulley device 8 arranged on the travelling crane guide rail 7, wherein the grab bucket device 2 is arranged on the pulley device 8. The travelling guide rail 7 is arranged between the feeding hole 12 and the discharging hole 13 of the bin 1, and the trolley device 8 slides on the travelling guide rail 7, so that the grab bucket device 2 can transfer the stored garbage at the feeding hole 12 and the discharging hole 13.
The exhaust device 5 is an exhaust fan, and the number of the exhaust fans is 2-10; the total exhaust amount of all exhaust fans should meet the requirement that the air in the cabin is replaced once within 3-5 hoursThat is, the exhaust speed of each exhaust fan should satisfy the following equation: v ═ L/(nxh); wherein V is the exhaust velocity of each exhaust fan and is m3Hour/hour; l is the total amount of exhaust gas, i.e. 3-4X 10 of the volume of the chamber 14Unit is m3(ii) a N is the number of exhaust fans, namely 2-10; h is the exhaust time, i.e. 3-5 hours.
The fans 3 are cold and hot fans, the total air outlet amount of all the fans 3 is the same as the total air exhaust amount of all the exhaust devices 5, the temperature in the bin is maintained at 40-65 ℃ by the cold and hot fans, the water evaporation of stored garbage can be accelerated in the temperature range, and the airing time is further shortened. The surface of the inner side wall of the bin 1 is provided with an insulation board, so that the heat of the bin 1 is prevented from being dissipated.
The drying and homogenizing process of sieving material to reduce garbage includes the following steps:
1) conveying the stored garbage to a feed port 12 of a bin 1, driving a grab bucket device 2 to move to the feed port 12 along a trolley guide rail 7 by a pulley device 8, grabbing the stored garbage at the feed port 12 by the grab bucket device 2, opening a jaw plate on the grab bucket device 2 to gradually scatter the stored garbage, controlling the pulley device 8 to move at a constant speed along the trolley guide rail 7 to uniformly scatter the stored garbage on the bottom surface of the bin 1 to be fully distributed in the whole bin 1, and repeating the operation of the grab bucket device 2 until the stored garbage is accumulated to form a material accumulation layer with the thickness of 20-60 cm;
2) starting the fan 3, discharging wind formed by the fan 3 from an air outlet to a ventilating duct 4 arranged at the bottom of the material accumulation layer, and continuously ventilating the material accumulation layer through air exhaust holes 41 uniformly arranged on the ventilating duct 4; the fan 3 controls the temperature in the bin 1 to be 40-65 ℃; meanwhile, the exhaust device 5 arranged above the cabin 1 is started to continuously exhaust the air in the cabin 1 outwards, the exhaust speed of the exhaust device 5 can be adjusted according to the area of the cabin 1 and the number of the exhaust devices 5, and the total exhaust amount of all the exhaust devices 5 is required to replace the air in the cabin once within 3-5 hours;
3) after 3-7 days, the dry material with the water content lower than 30% is obtained, the tackle device 8 drives the grab bucket device 2 to move to the discharge hole 13 of the bin 1, and the grab bucket device 2 grabs the dry material to the discharge hole 13 of the bin 1 and conveys the dry material out.
In the process of drying the garbage storage, garbage leachate generated by the garbage storage flows to the bottom surface of the bin 1, is conveyed to the pre-buried plastic pipe through the leachate discharge hole 42 and then is guided and discharged into the leachate collecting tank 6, leachate collected in the leachate collecting tank 6 is discharged into a leachate collecting tank 61 outside the bin 1, and the leachate can be discharged after being processed to reach the standard or transported outside to a sewage plant with processing capacity to reach the standard, so that the environment is prevented from being polluted. In the drying process, a plant deodorant is manually or mechanically sprayed on the surface of the material stacking layer to avoid odor from dispersing.
Particularly, when raining, the baffle plate 11 at the top of the bin 1 is closed to prevent the stored garbage from being wetted by rainwater, and when the rainy day or sunny day, the baffle plate 11 is opened to enable the top of the bin 1 to be in an open state.
Example 1
Example 1 the drying and homogenizing apparatus for sieving and reducing the amount of the garbage in stock was used to treat the garbage in stock at a scale of 1000t/d, the specific gravity of the garbage in stock was about 0.75, the thickness of the material accumulation layer in step 1) was 0.5m, the drying process was stopped when the water content of the garbage in stock was 30%, and the drying time was 5 days. Calculating the floor area S of the airing area as
In the embodiment, the moisture content of the garbage before treatment is 58% on average, the moisture content can be reduced to 30% after 5 days of treatment, and the floor area of the airing area in the bin 1 is 13333m2。
Comparative example 1
Comparative example 1 the airing process was stopped when the conventional method was used to directly dry the stored garbage in the warehouse, the scale of treating the stored garbage was 1000t/d, the specific gravity of the stored garbage was about 0.75, the thickness of the stored garbage was 0.5m, and the water content of the stored garbage was 30%.
The moisture content of the garbage before treatment in the embodiment is 58% on average, the moisture content can be reduced to 30% after 12 days of treatment, and the garbage is expected to be aired in the binThe floor area S of the sunning zone is
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (6)
1. The equipment for drying and homogenizing the amount-reduced materials screened by the stored garbage is characterized by comprising a bin, a grab bucket device arranged in the bin, a fan arranged at the lower part of the bin and an exhaust device arranged at the upper part of the bin; the bin is provided with a ventilating duct communicated with an air outlet of the fan; the bin is provided with a feeding hole and a discharging hole; a leachate collecting tank is arranged at the bottom of the bin, a leachate collecting tank is arranged outside the bin, and the leachate collecting tank is connected with the leachate collecting tank; the bottom surface of bin is equipped with the recess that a plurality of evenly arranged along width direction, is equipped with one in every recess respectively the fan with the air exit intercommunication of fan air pipe.
2. The apparatus for drying and homogenizing inventory waste screen reduction material as set forth in claim 1, further including a trolley means disposed on the trolley means and a grab means disposed on the trolley means.
3. The apparatus for drying and homogenizing inventory waste screen reduced materials as claimed in claim 1, wherein the surfaces of the inner side walls of the bin are provided with insulation panels.
4. The apparatus for drying and homogenizing refuse inventory reduction materials according to claim 1, wherein the upward-facing wall of the ventilation duct is provided with a plurality of uniformly distributed exhaust holes.
5. The apparatus for drying and homogenizing the inventory waste screen reducing material as claimed in claim 4, wherein a bed of crushed stones having a diameter greater than the diameter of the air discharge holes is laid over the ventilation duct.
6. The apparatus for drying and homogenizing inventory waste screen reduced materials as claimed in claim 1, wherein said fan is a cold or hot fan; the exhaust device is an exhaust fan.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121355416.7U CN216745201U (en) | 2021-06-17 | 2021-06-17 | Drying and homogenizing equipment for screening and reducing materials of stored garbage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121355416.7U CN216745201U (en) | 2021-06-17 | 2021-06-17 | Drying and homogenizing equipment for screening and reducing materials of stored garbage |
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| CN216745201U true CN216745201U (en) | 2022-06-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823860A (en) * | 2023-02-15 | 2023-03-21 | 北京高能时代环境技术股份有限公司 | Drying pretreatment system for sorted garbage screening materials |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823860A (en) * | 2023-02-15 | 2023-03-21 | 北京高能时代环境技术股份有限公司 | Drying pretreatment system for sorted garbage screening materials |
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