CN211936288U - Stink suppression system of garbage transfer station - Google Patents

Abstract

The utility model relates to a stink suppression system of a garbage transfer station, belonging to the technical field of stink pollutant treatment; the device comprises a totally-enclosed garbage bin, an odor inhibition platform and a control box, wherein a waste gas spraying pipeline, an odor gas collecting pipeline and an axial flow fan for providing power for odor gas collection are arranged in the garbage bin; the odor inhibition effect is improved, secondary pollution is avoided, automatic control is realized, the operation is simple, the maintenance is convenient, and the occupied area is small or no occupied area is occupied.

Description

Stink suppression system of garbage transfer station

Technical Field

The utility model relates to a rubbish transfer station stench restraint system belongs to stench pollutant and administers technical field.

Background

At present, the community scale is gradually enlarged, and the community garbage disposal problem is always a problem closely related to the residential level of residents. Under the existing sanitation management policy, 98% of communities in the country implement a management mode of centralized recycling and unified clearing of garbage transfer stations. For making things convenient for garbage collection, generally all set up the rubbish transfer station near the residential quarter, rubbish from cooking etc. can ferment and decay at the rubbish transfer station, produce a large amount of foul gas, and near residential quarter all is in foul gas's influence range, influences quality of life, pollutes the peripheral environment.

The existing transfer station malodorous gas treatment comprises the following steps:

the first chemical reagent inhibiting method is to inhibit odor through closed spraying of odor inhibitor, disinfection and other measures, but the odor producing rate is constant and the closed state of the transfer station is destroyed in daily use, so that the odor producing effect on the residents will not be reduced. Various chemical reagents sprayed on the stacked garbage can be attached to the surface of the garbage, and if the garbage is subjected to garbage incineration treatment, the chemical reagents can be regenerated into gaseous pollutants (such as benzopyrene, organic chloride, dioxin and the like) at high temperature, so that the environment is polluted to a greater extent. The method of spraying chemical agent on the surface of the garbage can cover up the foul smell or inhibit the rotting rate of the kitchen garbage and reduce the generation amount of the foul smell. The odor masking only has a masking effect on the generation of the malodor and only can reduce the perception degree of the odor of residents from the sense, but the generation amount of harmful chemical components in the malodor pollutants is not influenced and the environment is still polluted. The medicament for inhibiting the rotting and patrolling of the garbage has the defects of uneven spraying and incapability of effectively reaching the surface of the kitchen garbage, serious reagent waste condition and low utilization efficiency. The two chemical reagent methods have the hidden troubles that secondary pollution is caused if garbage is incinerated, and the influence range and the influence degree are larger and wider.

And the second method comprises the following steps: the microbiological method mainly depends on the normal respiration action of special microorganisms during living to absorb the malodorous pollutants and convert the malodorous pollutants into odorless gas for discharge. The method has high requirements on culture conditions of strains. Because the optimal treatment efficiency window of the flora is small, the requirements on operators are high. And the biological method device has larger occupied area, and a special anti-leakage, constant-temperature and constant-humidity treatment chamber needs to be additionally arranged beside the transfer station. The method also produces a large amount of waste water, which adds a pollution source to the transfer station.

When the garbage transfer station is in a transfer state, dust can be generated due to dumping and rolling of garbage. The transfer station in the transfer state is subjected to smoke inorganization emission analysis, and the maximum value of the TSP in the influence area can reach 248mg/m³Far higher than the national standard.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the garbage transfer station odor inhibition system overcomes the defects of the prior art, improves the odor inhibition effect, avoids secondary pollution, and has the advantages of automatic control, simple operation, convenient maintenance and small occupied area.

The utility model discloses a rubbish transfer station stench suppression system, including totally closed garbage storehouse, stench suppression platform and switch board, garbage storehouse inside is provided with waste gas spray line, stench gas collecting pipe and provides the axial fan of power for the stench gas is collected, collecting pipe encircles garbage storehouse top all around and evenly opens and has a plurality of collection mouths, spray line's spray opening is located the garbage storehouse bottom, stench suppression platform includes the prefilter box that communicates in proper order, low temperature plasma deodorizer, exhaust fan, three-way reposition of redundant personnel governing valve, the prefilter box communicates the collecting pipe through the pipeline, three-way reposition of redundant personnel governing valve one end export communicates the atmosphere through the aiutage, the other end export communicates the spray line through the pipeline, the switch board is located stench suppression platform one side; the control cabinet is located foul smell suppression platform one side, is provided with door detection sensor on the garbage bin, is provided with PLC, converter and current controller in the control cabinet, door detection sensor connects the PLC input, and the PLC output is connected connect converter and current controller, and the exhaust fan is connected to the converter, and low temperature plasma deodorizer is connected to the current controller.

The axial flow fan works to collect the malodorous gas in the garbage bin, so that a negative pressure environment is formed in the transfer station, and the malodorous gas is prevented from diffusing into the environment. The collected malodorous gas passes through a prefilter box, so that liquid drops and solid particles in the malodorous gas can be filtered and removed; then enters a low-temperature plasma deodorizer, pollutant molecules are decomposed in a very short time by utilizing the action of low-temperature plasma on pollutants in malodorous gas, and then continue to react, molecules of harmful components in the waste gas are destroyed, cracked and oxidized, the malodorous factors are eliminated from the molecular structure, and finally the malodorous factors are converted into harmless substances such as stable carbon dioxide, water, nitrogen and the like. The treated tail gas is discharged through the exhaust funnel, and meanwhile, the three-way shunt regulating valve is regulated to introduce all or part of the treated waste gas into the garbage bin, and the micro ozone in the waste gas can effectively kill bacteria, viruses, flies, mosquitoes and the like in the garbage bin, so that zero emission of the waste gas is realized. The floor area is small, and the floor area of the equipment required by the garbage transfer station with the square meter of 100 is only 11 square meters.

The PLC receives a door opening signal of the bin door detection sensor, outputs a signal to the frequency converter to control the full-load work of the exhaust fan, and simultaneously outputs a signal to the current controller to control the full-load work of the low-temperature plasma deodorizer; the PLC receives a door closing signal of the bin door detection sensor, outputs a signal to the frequency converter to control the low-load work of the exhaust fan, and simultaneously outputs a signal to the current controller to control the low-load work of the low-temperature plasma deodorizer; the PLC is automatically operated in the whole process, and does not occupy manpower.

Preferably, a polyamide fiber filter screen is inserted into the pre-filtering box; as an effective waste gas pretreatment device, conditions are created for subsequent treatment; easy to take and convenient to maintain.

Preferably, a low-temperature plasma generator is arranged in the low-temperature plasma deodorizer, and the low-temperature plasma generator is uniformly arranged in the low-temperature plasma deodorizer in a matrix manner; secondary pollution is not generated, and after purification, odor pollutant molecules are converted into harmless gas; no waste water and no pollution source.

Preferably, the malodor suppressing platform is installed on the upper side of the garbage bin and can be installed on the basis of the original building of the transfer station, and the floor area is not occupied.

Compared with the prior art, the utility model discloses following beneficial effect has:

waste transfer station foul smell suppression system improves foul smell inhibitory effect, avoids secondary pollution, automatic control, easy operation, maintenance convenience, area is little or not take up an area of.

Drawings

FIG. 1 is a schematic structural view of the foul odor suppressing system of the garbage transfer station of the present invention.

In the figure: 1. a pre-filter tank; 2. a low temperature plasma deodorizer; 3. an exhaust fan; 4. a three-way flow dividing regulating valve; 5. a malodorous gas collection pipe; 6. a spray pipe; 7. a control cabinet.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

example 1

As shown in figure 1, the stink suppression system of the garbage transfer station comprises a totally-enclosed garbage bin, a stink suppression platform and a control cabinet 7, wherein a waste gas spraying pipeline 6, a stink gas collecting pipeline 5 and an axial flow fan for providing power for collecting the stink gas are arranged in the garbage bin, the collecting pipeline 5 surrounds the periphery of the top of the garbage bin and is uniformly provided with a plurality of collecting ports, the spraying ports of the spraying pipeline 6 are positioned at the bottom of the garbage bin, the stink suppression platform comprises a pre-filtering box 1, a low-temperature plasma deodorizer 2, an exhaust fan 3 and a three-way shunt regulating valve 4 which are sequentially communicated, the pre-filtering box 1 is communicated with the collecting pipeline 5 through a conveying pipeline, one end outlet of the three-way shunt regulating valve 4 is communicated with the atmosphere through an exhaust funnel, the other end outlet is communicated with the spraying pipeline 6 through the conveying pipeline, the control cabinet 7 is positioned on one, and a PLC, a frequency converter and a current controller are arranged in the control cabinet 7, the bin gate detection sensor is connected with the input end of the PLC, the output end of the PLC is connected with the frequency converter and the current controller, the frequency converter is connected with the exhaust fan 3, and the current controller is connected with the low-temperature plasma deodorizer 2.

The axial flow fan works to collect the malodorous gas in the garbage bin, so that a negative pressure environment is formed in the transfer station, and the malodorous gas is prevented from diffusing into the environment. The collected malodorous gas passes through the pre-filtering box 1, so that liquid drops and solid particles in the malodorous gas can be filtered and removed; then enters a low-temperature plasma deodorizer 2, pollutant molecules are decomposed in a very short time by utilizing the action of low-temperature plasma on pollutants in malodorous gas, and then continue to react, molecules of harmful components in the waste gas are destroyed, cracked and oxidized, the malodorous factors are eliminated from the molecular structure, and finally the malodorous factors are converted into harmless substances such as stable carbon dioxide, water, nitrogen and the like. The treated tail gas is discharged through the exhaust funnel, and meanwhile, the three-way shunt regulating valve 4 is regulated to introduce all or part of the treated waste gas into the garbage bin, and the micro ozone in the waste gas can effectively kill bacteria, viruses, flies, mosquitoes and the like in the garbage bin, so that zero discharge of the waste gas is realized. The floor area is small, and the floor area of the equipment required by the garbage transfer station with the square meter of 100 is only 11 square meters. The PLC is automatically operated in the whole process, and does not occupy manpower.

Wherein a polyamide fiber filter screen is inserted into the pre-filtering box 1, a drawer type supporting plate is installed in the pre-filtering box 1, the polyamide fiber filter screen is fixed on the drawer type supporting plate, and the drawer type supporting plate is inserted into the pre-filtering box 1 from one side; as an effective waste gas pretreatment device, conditions are created for subsequent treatment; easy to take and convenient to maintain.

Wherein, the low-temperature plasma deodorizer 2 is internally provided with low-temperature plasma generators, the arrangement number of the generators is determined by the low-temperature plasma generators according to the air volume to be processed, and the generators are uniformly arranged in the low-temperature plasma deodorizer 2 in a matrix manner; secondary pollution is not generated, and after purification, odor pollutant molecules are converted into harmless gas; no waste water and no pollution source.

Wherein, the stink suppression platform is arranged at the upper side of the garbage bin and can be arranged on the basis of the original building of the transfer station, and the stink suppression platform occupies no land.

The principle of low-temperature plasma treatment of exhaust gas is as follows:

the molecular bonds of pollutant molecules, water molecules, oxygen molecules and the like in the waste gas are broken under the direct bombardment of high-energy electrons to be converted into CO2, H2O, N2, OH-, O, O3 and small molecular substances. Since the molecules of the contaminant are large, they are very likely to become target molecule groups, and a large number of contaminant molecules are decomposed in the process. The direct bombardment of high-energy electrons plays a role of more than 99 percent in the whole process of plasma reaction, side reactions are partial micromolecule high-energy active groups such as nascent oxygen, ozone, hydroxyl and the like, a series of complex physical and chemical reactions are carried out to complete deep oxidation, so that the deep oxidation is thoroughly decomposed and cracked and finally converted into harmless substances such as CO2, H2O, N2 and the like.

The operation process of the whole-course PLC automatic operation is as follows:

the PLC receives a door opening signal of the bin door detection sensor, outputs a signal to the frequency converter to control the full-load work of the exhaust fan 3, and simultaneously outputs a signal to the current controller to control the full-load work of the low-temperature plasma deodorizer 2; the PLC receives a door closing signal of the bin door detection sensor, outputs a signal to the frequency converter to control the low-load work of the exhaust fan 3, and simultaneously outputs a signal to the current controller to control the low-load work of the low-temperature plasma deodorizer 2.

Claims (4)

1. A rubbish transfer station foul smell suppression system which characterized in that: the garbage bin is internally provided with a waste gas spraying pipeline (6), a malodorous gas collecting pipeline (5) and an axial flow fan for providing power for collection of the malodorous gas, the collecting pipeline (5) surrounds the periphery of the top of the garbage bin and is uniformly provided with a plurality of collecting ports, and the spraying ports of the spraying pipeline (6) are positioned at the bottom of the garbage bin; the stink suppression platform comprises a pre-filtering box (1), a low-temperature plasma deodorizer (2), an exhaust fan (3) and a three-way shunt regulating valve (4) which are sequentially communicated, wherein the pre-filtering box (1) is communicated with a collecting pipeline (5) through a conveying pipeline, an outlet at one end of the three-way shunt regulating valve (4) is communicated with the atmosphere through an exhaust funnel, and an outlet at the other end of the three-way shunt regulating valve is communicated with a spraying pipeline (6) through a conveying pipeline; the control cabinet (7) is located on one side of the stink suppression platform, a bin gate detection sensor is arranged on the garbage bin, a PLC, a frequency converter and a current controller are arranged in the control cabinet (7), the bin gate detection sensor is connected with a PLC input end, a PLC output end is connected with the frequency converter and the current controller, the frequency converter is connected with the exhaust fan (3), and the current controller is connected with the low-temperature plasma deodorizer (2).

2. The trash transfer station malodor suppression system of claim 1, wherein: a polyamide fiber filter screen is inserted in the prefilter box (1).

3. The trash transfer station malodor suppression system of claim 1, wherein: the low-temperature plasma deodorizer (2) is internally provided with low-temperature plasma generators which are uniformly arranged in the low-temperature plasma deodorizer (2) in a matrix manner.

4. The trash transfer station malodor suppression system of any one of claims 1-3, wherein: the stink suppression platform is arranged on the upper side of the garbage bin.

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