CN212039754U

CN212039754U - Deodorization system for garbage transfer station

Info

Publication number: CN212039754U
Application number: CN202020388719.8U
Authority: CN
Inventors: 胡耀辉; 赵万山; 狄春阳
Original assignee: Shaanxi Tianrenxue Agricultural Technology Co ltd
Current assignee: Shaanxi Tianrenxue Agricultural Technology Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-12-01
Anticipated expiration: 2030-03-25

Abstract

The utility model provides a deodorization system for rubbish transfer station, deodorization system is by the spray column, UV photodissociation oxidation unit, electro-oxidation catalytic purification equipment, the degradation tower, fan and discharge port are constituteed, the foul smell in the rubbish transfer station at first lets in the spray column and carries out preliminary deodorization, then through UV photodissociation oxidation unit, electro-oxidation catalytic purification equipment in proper order through the pipeline in entering into the degradation tower, through the further deodorization of degradation, discharge port is followed to the fan at last. Compared with the prior art, the utility model discloses following beneficial effect has: the multi-stage deodorization mode of a spray tower, a UV photolysis oxidation device, an electro-oxidation catalytic purification device, a degradation tower, a fan and a discharge port is adopted, so that the deodorization efficiency is improved.

Description

Deodorization system for garbage transfer station

Technical Field

The utility model belongs to the technical field of the deodorization of mill, concretely relates to deodorization system for rubbish transfer station.

Background

Along with the gradual increase of urban population, a lot of garbage is produced in the process of people's daily production activities, and along with the rise year by year of environmental protection standard, traditional garbage disposal mode and effect can not satisfy people's requirement to living environment quality, and the rubbish transfer station comes soon in transit, and the rubbish transfer station is according to different rubbish, classifies, and the compaction is being sent to different refuse treatment plants, has improved garbage disposal efficiency and safety, and the while is categorised rubbish, has improved rubbish resource management's feasibility.

However, the garbage transfer station is often serious in peculiar smell, a large number of mosquitoes and flies are easy to breed, great influence is caused to the life of peripheral residents, the garbage transfer station is difficult to select sites or addresses are far away, the transportation cost is greatly increased, the urban population is increased year by year, the urban area is enlarged, residential living areas are closer to the garbage transfer station, in order to improve the quality of the peripheral environment, the traditional deodorization mainly adopts a spraying technology, and a traditional single deodorization system is not thorough in deodorization.

Disclosure of Invention

In view of the above-mentioned technical problem, the utility model provides a deodorization system for transferring accounts in rubbish.

The technical scheme of the utility model as follows: the utility model provides a deodorization system for rubbish transfer station, deodorization system is by spray column 1, UV photodissociation oxidation unit 7, electrooxidation catalytic purification equipment 8, degradation tower 9, fan 13 and discharge port 14 are constituteed, and the foul smell in the rubbish transfer station firstly lets in and carries out preliminary deodorization in spray column 1, then passes through UV photodissociation oxidation unit 7, electrooxidation catalytic purification equipment 8 in proper order through the pipeline and enters into degradation tower 9, through the further deodorization of degradation, discharges from discharge port 14 through fan 13 at last.

Further, spray column 1 has air intake 2, lower part, filling layer 4, spray set 5 and water pump 6, air intake 2 sets up the one side at spray column 1, the lower part of spray column 1 sets up stock solution storehouse 3, water pump 6 pumps the water in the stock solution storehouse 3 to spray set 5, inside, the top in stock solution storehouse 3 of spray column 1 set up filling layer 4, spray set 5 sets up the top at filling layer 4. An absorbent is provided in the packed layer 4.

Further, in the UV photolysis oxidation device 7, a high-energy UV ultraviolet beam and ozone are applied to perform a synergistic decomposition oxidation reaction on the odor; the electro-oxidation catalytic purification device 8 carries out oxidative decomposition on the odor.

Furthermore, a filter screen layer 10 and a filter membrane layer 11 are sequentially arranged above the inlet of the degradation tower 9 from bottom to top, and a lactic acid bacteria spraying device 12 is arranged above both the filter screen layer 10 and the filter membrane layer 11.

Further, the fan 13 is used to introduce odor into the deodorization system and then discharged through the discharge port 14 by the fan 13.

Compared with the prior art, the utility model discloses following beneficial effect has: the multi-stage deodorization mode of a spray tower, a UV photolysis oxidation device, an electro-oxidation catalytic purification device, a degradation tower, a fan and a discharge port is adopted, so that the deodorization efficiency is improved.

Drawings

FIG. 1 is a view of the deodorizing system of the garbage transfer station of the present invention;

in the figure, the device comprises a spray tower 1, an air inlet 2, a liquid storage bin 3, a filling layer 4, a spray device 5, a water pump 6, a UV photolysis oxidation device 7, an electro-oxidation catalytic purification device 8, a degradation tower 9, a filter screen layer 10, a filter membrane layer 11, a lactic acid bacteria spray device 12, a fan 13 and a discharge port 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, be the utility model discloses the whole layout of rubbish transfer station deodorization system, the utility model discloses a deodorization system for rubbish transfer station, deodorization system comprises spray column 1, UV photodissociation oxidation unit 7, electro-oxidation catalytic purification equipment 8, degradation tower 9, fan 13 and discharge port 14, and the foul smell in the rubbish transfer station at first lets in and carries out preliminary deodorization in spray column 1, then passes through UV photodissociation oxidation unit 7, electro-oxidation catalytic purification equipment 8 in proper order through the pipeline and enters into degradation tower 9, through the further deodorization of degradation, at last through fan 13 from discharge port 14 discharge.

Spray column 1 has air intake 2, lower part, filling layer 4, spray set 5 and water pump 6, air intake 2 sets up the one side at spray column 1, spray column 1's lower part sets up stock solution storehouse 3, water pump 6 pumps the water in the stock solution storehouse 3 to spray set 5, spray column 1 is inside, the top in stock solution storehouse 3 sets up filling layer 4, spray set 5 sets up the top at filling layer 4. An absorbent is provided in the packed layer 4.

Performing a synergistic decomposition oxidation reaction on the odor by using a high-energy UV ultraviolet beam and ozone in the UV photolysis oxidation device 7; the electro-oxidation catalytic purification device 8 carries out oxidative decomposition on the odor.

A filter screen layer 10 and a filter membrane layer 11 are sequentially arranged above an inlet of the degradation tower 9 from bottom to top, and a lactic acid bacteria spraying device 12 is arranged above the filter screen layer 10 and the filter membrane layer 11.

The fan 13 is used to introduce odor into the deodorization system and then discharged through the discharge port 14 by the fan 13.

The deodorization process of the application is as follows: the path of the odor in the system is as follows: the device comprises a spray tower, a UV photolysis oxidation device, an electro-oxidation catalytic purification device, a degradation tower, a fan and a discharge port.

Firstly, odor and/or dust are introduced into the spray tower 1 from the air inlet 2 through the fan 13, the odor is fully contacted with the absorbent in the filling layer 4 in the spray tower 1, and the VOCs gas is dissolved in the absorption liquid or is subjected to chemical reaction (acid-base neutralization) with the absorption liquid according to the similar phase dissolving principle (according to the selected absorbent), so that the purpose of removing the VOCs is achieved. A water collector and a demister can be arranged in the spray tower 1 for collecting water vapor in the gas.

The odor absorbent can be selected from: 1. the organic solvent absorbent is mainly some oil substances with higher boiling points, such as waste engine oil, lubricating oil, wash oil, biodiesel, diesel oil and the like. The organic solvent absorbent has higher absorption capacity for VOCs, but most of organic solvents are easy to burn and volatilize, potential safety hazards and secondary pollution exist, and part of organic solvents are expensive in cost and high in viscosity, so that uneven liquid distribution and increased pressure drop in absorption equipment are easily caused, and the industrial application of the organic solvent absorbent is limited to a certain extent; 2. the surfactant absorbent is a substance containing hydrophilic groups and hydrophobic groups in molecules, when the surfactant reaches a certain concentration in a solution phase, nonpolar micelles can be formed spontaneously in an internal microenvironment, the solubility of insoluble or indissolvable organic matters in the solution phase is remarkably increased, and researchers take cyclodextrin as the absorbent to absorb and purify toluene waste gas. The anionic sodium dodecyl sulfate, the nonionic polyoxyethylene octylphenol ether, the cationic hexadecyl trimethyl ammonium bromide, the biosurfactant rhamnolipid and the lipopeptide have higher absorption effect on VOCs; 3. the microemulsion absorbent is a thermodynamic stable system formed by the components of cosurfactant, surfactant, water or saline water, oil and the like in proper proportion, and has stronger solubilization effect on organic pollutants, so that the microemulsion absorbent is used for absorbing and purifying VOCs waste gas in recent years. Tween is a surfactant, n-butyl alcohol, n-butyric acid and n-butylamine are cosurfactant and toluene is used as oil in a microemulsion system to absorb waste gas; 4. the ionic liquid absorbent is an ionic compound which is composed of an organic cation and an organic or inorganic anion and is in a liquid state at room temperature or near room temperature. The skilled person can select the absorbent based on the absorbent which is already common in the prior art, and the patent document CN108786383A discloses an absorbent for VOCs and the absorbent for use in this application.

UV photodissociation oxidation unit: the organic waste gas (odor) pretreated by the spray tower 1 is input into a UV photolysis oxidation device (also called UV light) by a fan 13Decompose exhaust gas purifier), clarification plant application high energy UV ultraviolet ray beam and ozone carry out the concerted decomposition oxidation reaction to the foul smell, and photolysis exhaust gas purifier utilizes high energy high ozone UV ultraviolet ray beam to shine foul gas, changes foul gas if: trimethylamine, hydrogen sulfide, methylthio hydrogen, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide and styrene, sulfide H₂S, VOC molecular chain structure makes the molecule chain of organic or inorganic polymer malodorous compound degrade and convert into low molecular compound under the irradiation of high-energy ultraviolet light beam, such as CO2, H2O, etc., and makes the malodorous substance degrade and convert into low molecular compound, water and carbon dioxide.

The electro-oxidation catalytic purification equipment integrates low-temperature plasma, microwave discharge and polar plate discharge, and thoroughly crushes waste gas compounds in different categories. The gas treated by the UV photolysis oxidation device is input into the electro-oxidation catalytic purification equipment by the fan 13, so that the molecules of high-risk carcinogens such as carbide, sulfide, hydride, benzene, hydrocarbon and the like in the gas are changed, and carbon dioxide, water, steam and a large amount of carbide with stable performance are generated. The main reactions for removing the offensive odor in the low-temperature plasma can be classified into electron, ion, radical and molecular collision reactions. High-voltage high-frequency alternating current is applied between electrodes to form micro discharge on the surface, and simultaneously, a high electric field is induced to accelerate free electrons in a discharge space, and at the moment, the electrons are accelerated in the electric field to obtain enough energy (1-10ev) and collide with gas molecules to perform excitation, dissociation, combination or recombination and other reactions to generate a plurality of strong and high-activity substances such as electrons, ions, metastable particles, free radicals and the like, wherein the common free radicals are as follows: the high-energy and high-activity substances such as OH, ground state oxygen atom O and the like can overcome the obstacle of energy level, SO that original stable odor molecules in the air flow are broken, the gaseous molecular reaction is promoted to be rapidly carried out, the odor components after the reaction are converted into small molecules such as SO2, NOx, CO2, H2O and the like after being treated, the product concentration is low, and no secondary pollution is caused.

A degradation tower: odor and dust upwards move, and pass through the filter screen layer and the filter membrane layer (filter screen and filter membrane are common materials in the market), the lactic acid bacteria spray set inside the tower body sprays lactic acid bacteria onto the filter screen layer and the filter membrane layer, and further deodorization is realized.

A fan: 1) the fan is a centrifugal fan, and the main parts such as the shell, the impeller and the like are subjected to anti-corrosion treatment by adopting glass fiber reinforced plastics; 2) In order to avoid generating stress and increasing strength, the fan shell is manufactured by adopting an integral forming method. In order to avoid leakage, the assembly screw of the shell and the inlet clock adopts a pre-injection method. The inlet bell is in a trumpet-shaped gradually-reducing and gradually-expanding design and is smoothly connected with the impeller, so that a better streamline is formed and linearly superposed, and interference damage caused by acid-base crystal adhesion is avoided; 3) the fan is provided with a special inlet and outlet flexible compensator and a spring shock absorber. The flexible compensator main body is made of fiber fabric, can compensate axial direction, transverse direction and angular direction, is corrosion-resistant and high temperature-resistant, has the functions of sound absorption and vibration isolation transmission, and can effectively reduce noise and vibration of the fan. The noise of the fan (including the motor) is lower than 80dB (A), the vibration of the unit meets 4.5 grade of ISO2372 standard, and the vibration isolation efficiency is more than or equal to 80 percent; 4) the dynamic balance precision of the fan impeller is in accordance with G2.5 grade of ISO1940 standard and can continuously operate for 24 hours; 5) the motor adopts a two-stage energy-saving explosion-proof motor, the protection level is IP65, the power supply is 3-phase, 4P, 380V and 50Hz, the insulation level is F level, and the temperature rise level is B level. The service life is longer than 10 years.

Compared with the prior art, the utility model discloses following beneficial effect has: the multi-stage deodorization mode of the spray tower, the UV photolysis oxidation device, the electro-oxidation catalytic purification equipment, the degradation tower, the fan and the discharge port is adopted, so that the deodorization efficiency is improved, and secondary pollution is prevented.

Claims

1. A deodorization system for a garbage transfer station is characterized in that: deodorization system is by spray column (1), UV photodissociation oxidation unit (7), electro-oxidation catalytic purification equipment (8), degradation tower (9), fan (13) and discharge port (14) are constituteed, the foul smell in the rubbish transfer station firstly lets in and carries out preliminary deodorization in spray column (1), then pass through UV photodissociation oxidation unit (7) in proper order through the pipeline, electro-oxidation catalytic purification equipment (8) enter into degradation tower (9), further deodorization through the degradation, discharge port (14) are followed in fan (13) at last.

2. The deodorization system for a trash transfer station according to claim 1, wherein: spray column (1) has air intake (2), lower part, filling layer (4), spray set (5) and water pump (6), air intake (2) set up the one side at spray column (1), the lower part of spray column (1) sets up stock solution storehouse (3), water pump (6) send the water in stock solution storehouse (3) to spray set (5), inside, the top in stock solution storehouse (3) of spray column (1) sets up filling layer (4), spray set (5) set up the top in filling layer (4), are provided with the absorbent in filling layer (4).

3. The deodorization system for a trash transfer station according to claim 1, wherein: performing a synergistic decomposition oxidation reaction on odor by using high-energy UV ultraviolet beams and ozone in the UV photolysis oxidation device (7); the electro-oxidation catalytic purification equipment (8) carries out oxidative decomposition on the odor.

4. The deodorization system for a trash transfer station according to claim 1, wherein: a filtering net layer (10) and a filtering membrane layer (11) are sequentially arranged above an inlet of the degradation tower (9) from bottom to top, and a lactic acid bacteria spraying device (12) is arranged above the filtering net layer (10) and the filtering membrane layer (11).

5. The deodorization system for a trash transfer station according to claim 1, wherein: the fan (13) is used for introducing odor into the deodorization system and then discharging the odor through the fan (13) and the discharge port (14).