CN215386173U

CN215386173U - Goods killing device

Info

Publication number: CN215386173U
Application number: CN202120403868.1U
Authority: CN
Inventors: 罗晓阳; 唐昶宇; 刘颖彘; 邵虹; 陈勇前
Original assignee: Chengdu Science and Technology Development Center of CAEP
Current assignee: Chengdu Science and Technology Development Center of CAEP
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2022-01-04
Anticipated expiration: 2031-02-24

Abstract

The utility model relates to the technical field of disinfection and sterilization, in particular to a cargo sterilization device, which comprises a sterilization cavity, a degradation cavity and a conveyor belt, wherein a plurality of oxidation dry fog sterilization modules are arranged in the sterilization cavity, the degradation cavity is internally provided with degradation modules, and the conveyor belt passes through the sterilization cavity and the degradation cavity to transport cargos; the oxidation dry fog disinfection module generates ozone and hydroxyl radical mixed dry fog in the disinfection cavity, and the degradation module is used for degrading ozone in the degradation cavity. Aims to achieve the aim of preventing epidemic disease from spreading by converting most of gaseous active substance ozone into gas-liquid mixed dry fog containing active oxygen and hydroxyl free radicals and utilizing the dry fog to disinfect and sterilize goods; meanwhile, a photoelectric coupling degradation module is additionally arranged in the device and is combined with a photoelectric coupling unit, so that redundant ozone generated along with dry fog is thoroughly degraded, and the hidden danger of ozone leakage is thoroughly eliminated.

Description

Goods killing device

Technical Field

The utility model belongs to the technical field of disinfection and sterilization, and particularly relates to a cargo sterilization device.

Background

Under the condition of low temperature, part of bacteria and viruses are easy to adhere to the goods, particularly to the surface of the cold chain goods, so that the cold chain goods can survive for a long time, and the risk of secondary transmission is increased; in daily life, epidemic spread caused by freight logistics and personnel and luggage flow exists in large quantity, and the society urgently needs related coping schemes and equipment.

The molecular structure of ozone is unstable at normal temperature and normal pressure, and the ozone is quickly decomposed into oxygen (O2) and single oxygen atom (O); the latter has strong activity and strong oxidizing power, and can directly act on bacteria, viruses and volatile organic gases to play the roles of sterilization, disinfection and air purification. In practical application, the risk that ozone is revealed can be brought to pure ozone disinfection, if equipment control is improper, also can harm the human body when disinfecting and purifying, produces the health hidden danger.

The disinfection and sterilization effect of the ozone water is enhanced by hydroxyl free radicals (OH) generated in the process that ozone is dissolved in water. The oxidation potential of hydroxyl free radical (. OH) is 2.80eV, which is second to fluorine (2.87eV), the hydroxyl free radical has strong oxidizability, can generate rapid chain reaction with most organic pollutants, can directly mineralize harmful substances into CO2, H2O or inorganic salt without selectivity, and does not generate secondary pollution. The advanced oxidation characteristics of hydroxyl free radical (. OH) enable the catalyst to be applied to the treatment of organic pollutants and the like, and the catalyst has the characteristics of broad spectrum, rapidness, stability and reliability.

At present, no device and method for mixing ozone and hydroxyl radicals into disinfection dry mist for disinfection of cold chains, logistics and goods are available. The traditional disinfection mode adopts a single-purification chemical agent for spraying disinfection, so that biological pollution cannot be effectively removed, secondary pollution residue can be generated, the peculiar smell of the chemical disinfectant is strong, and the chemical disinfectant is harmful to bodies, especially to the disinfection of food and goods.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that bacteria and germs exist on transported goods, particularly cold chain goods, no effective equipment is available for quickly killing the cold chain goods, the utility model provides a goods killing device and a killing method.

The technical scheme adopted by the utility model is as follows:

a cargo sterilizing device comprises a sterilizing cavity, a degrading cavity and a conveyor belt, wherein a plurality of oxidation dry fog sterilizing modules are arranged in the sterilizing cavity, the degrading modules are arranged in the degrading cavity, and the conveyor belt passes through the sterilizing cavity and the degrading cavity to transport cargos; the oxidation dry fog disinfection module generates ozone and hydroxyl radical mixed dry fog in the disinfection cavity, and the degradation module is used for degrading ozone in the degradation cavity.

Preferably, the oxidation dry fog disinfection module comprises an ozone generator and a hydroxyl radical generator, a plurality of oxidation dry fog disinfection modules are arranged above the conveyor belt, and the disinfection cavity and the degradation cavity are separated from each other to form a single closed cavity.

Preferably, the degradation module comprises a plurality of first degradation catalyst plates, each first degradation catalyst plate corresponds to one ultraviolet light tube, and the first degradation catalyst plates are arranged in a staggered manner to form an S-shaped channel; the degradation module sets up in the top of conveyer belt, through degradation chamber inlet fan with kill the chamber intercommunication, the gas outlet of degradation module is through first outlet fan and degradation chamber intercommunication.

Preferably, the degradation module further comprises a plurality of negative ion generators, and the negative ion generators are uniformly distributed in the S-shaped channel formed by the staggered arrangement of the degradation catalyst plates.

Preferably, a heating degradation cavity is arranged in the degradation cavity and below the conveyor belt, a plurality of far infrared heaters which are arranged in a staggered mode are arranged in the heating degradation cavity, and each far infrared heater corresponds to one second degradation catalyst plate; and the outlet of the heating degradation cavity is communicated with the sterilizing cavity through a second outlet fan.

Preferably, a second sterilizing cavity is arranged in the sterilizing cavity and below the conveyor belt, a plurality of oxidation dry fog sterilization modules are arranged in the second sterilizing cavity, the heating degradation cavity is communicated with the second sterilizing cavity, and an outlet of the second sterilizing cavity is communicated with the sterilizing cavity.

Preferably, a first movable plate for pushing to open is arranged at the inlet of the conveyer belt and on the sterilizing device, a second movable plate for pushing to open is arranged at the outlet of the conveyer belt, and a third movable plate for pushing to open is arranged between the sterilizing cavity and the degradation cavity.

The utility model has the advantages that:

1) the utility model achieves the purpose of preventing epidemic disease from spreading by converting most of gaseous active substance ozone into gas-liquid mixed dry fog containing active oxygen and hydroxyl free radicals and utilizing the dry fog to disinfect and sterilize goods; simultaneously add optoelectronic coupling degradation module in the device is inside, combine optoelectronic coupling unit, thoroughly degrade the unnecessary ozone that accompanies the dry fog production, thoroughly got rid of ozone and revealed the hidden danger, improve equipment overall safety carries out the secondary to machine inside gas when realizing ozone discharge to reach standard and disappears, finally realizes the thorough disinfection to the goods, and can not produce secondary pollution and chemical residue.

2) Photoelectric coupling is a technology which is based on the synergistic effect of photocatalysis and a negative oxygen ion generator, excites a catalyst through high-voltage static electricity and special wave band light waves, adsorbs related reaction atoms and promotes the acceleration of chemical reaction; the technology can generate active free radical particles with higher concentration, act on chemical atoms or biological macromolecules, promote the opening of molecular bonds and promote the denaturation and inactivation of the biological macromolecules, thereby achieving the effects of rapid degradation and disinfection and sterilization.

3) The equipment adopting the ozone and hydroxyl radical mixed dry fog sterilization and photoelectric coupling technology fundamentally solves the problem of chemical residue; the active substances of the reaction intermediate are finally degraded into substances such as oxygen, water and the like which exist in the natural environment, so that the disinfection effect is ensured, and the safety is ensured; and the ozone degradation effect is good, and the ozone content at the outlet of the device is lower than 0.16mg/m³And meets the emission standard.

4) The device has no residual liquid, can control the particles of the disinfection fog to be less than 5 mu m in diameter, so that the sprayed disinfection fog forms white dry fog, no moist feeling exists when hands of a human body contact, and anhydrous disinfection is achieved, so that condensed water drops are not formed on the surface of an article when the article is disinfected and sterilized, and the use of the article is influenced; the dry fog is particularly suitable for killing cold chain food, fruits and vegetables, and the dry fog can not form water drops on the surface of the food, so that the quality guarantee period of the food can be prolonged, and the food can not be rotten due to condensation of the water drops.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1-a degradation cavity, 2-an ultraviolet light tube, 3-an anion generator, 4-a first outlet fan, 5-a second movable plate, 6-a conveyor belt, 7-a heater, 8-a heating degradation cavity, 9-a second degradation catalyst plate, 10-a degradation cavity air inlet fan, 11-a first degradation catalyst plate, 12-a disinfection cavity, 13-an oxidation dry fog disinfection module, 14-a nozzle, 15-goods, 16-a first movable plate; 17-a third flap; 18-second outlet fan.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The utility model is suitable for killing bacteria and viruses in the transportation of common goods, and is also suitable for killing cold chain goods, in particular to food.

The molecular structure of ozone is unstable at normal temperature and normal pressure, the ozone is quickly decomposed into oxygen and single oxygen atoms, the single oxygen atom has strong activity and strong oxidizing capability, and can directly act on bacteria, viruses and volatile organic gases to play a role in sterilization, and the ozone disinfectant is a green disinfectant, the sterilization effect of ozone water can be enhanced by using hydroxyl radicals generated in the process of dissolving ozone in water, the oxidation potential of the hydroxyl radicals is 2.80eV, and is only 2.87eV after fluorine, and the ozone disinfectant has strong oxidizing property, and water vapor can generate the hydroxyl radicals under the synergistic effect of an ultraviolet lamp and a photocatalytic network. Therefore, the utility model adopts the ozone, the photocatalysis net plate and the ultraviolet lamp to form a disinfection system without adding a disinfectant or a bactericide, and the disinfection system has the advantages of environmental protection, no chemical residue and the like.

As shown in fig. 1, the cargo sterilizing device comprises a sterilizing cavity 12, a degrading cavity 1 and a conveyor belt 6, wherein a plurality of oxidation dry fog sterilizing modules 13 are arranged in the sterilizing cavity 12, a degrading module is arranged in the degrading cavity 1, and the conveyor belt 6 transports cargos through the sterilizing cavity 12 and the degrading cavity 1; the sterilizing cavity 12 and the degrading cavity 1 are separated from each other to form an independent closed cavity, the oxidation dry fog sterilizing module 13 generates ozone and hydroxyl radical mixed dry fog, and the degrading module is used for degrading ozone. It can be understood that the goods 15 enter the sterilizing cavity 12 from the entrance of the device, and at this time, the sterilizing cavity 12 generates sterilizing dry fog by the oxidizing dry fog sterilizing module 13 to sterilize the goods for one time, and the sterilizing dry fog is mainly dry fog formed by mixing ozone and hydroxyl radicals; goods continue to transport to degradation chamber 1 in, in the transportation, can have some ozone to enter into degradation chamber 1 via the position that disinfection chamber 12 and degradation chamber 1 are connected in the disinfection chamber 12, in order to make ozone be degraded in the device, and can not spill over the device outside, produce secondary pollution, degradation module has been set up in degradation chamber 1 for the ozone that overflows degrades, at ozone degradation's in-process, can produce a small amount of hydroxyl free radical, a small amount of hydroxyl free radical can carry out the secondary disinfection to goods 15.

The oxidation dry fog disinfection module 13 comprises an ozone generator and a hydroxyl radical generator, and a plurality of oxidation dry fog disinfection modules 13 are arranged above the conveyor belt 6. The oxidation dry fog disinfection module 13 is mainly used for dissolving ozone water with water to form ozone water, and then forming ozone dry fog through ultrasonic atomization, and forming hydroxyl free radicals in the ozone decomposition process; an ultraviolet lamp with 185nm wave band can be added for irradiation to excite the generation of hydroxyl free radicals.

The degradation module comprises a plurality of first degradation catalyst plates 11, each first degradation catalyst plate 11 corresponds to one ultraviolet light tube 2, the ultraviolet light tubes 2 adopt 254nm single-waveband ultraviolet light tubes, and the first degradation catalyst plates 11 are arranged in a staggered mode to form S-shaped channels; the degradation module sets up in the top of conveyer belt 6, the gas outlet of degradation module is through first export fan 4 and degradation chamber 1 intercommunication, the degradation module is through degradation chamber inlet fan 10 and the chamber 12 intercommunication that kills. The sterilizing dry mist generated in the sterilizing chamber 12, a portion (50%) of which is used for sterilizing the goods 15; one part (50%) enters the degradation module through the degradation cavity air inlet fan 10 and passes through an S-shaped channel formed by the first degradation catalyst plate 11, the circulation stroke of the dry fog is further increased, so that the ozone is completely degraded, the degraded ozone mixed dry fog is blown into the degradation cavity 1 through the first outlet fan 4 and contacts with transported goods, and a small amount of hydroxyl radicals generated in degradation can perform secondary disinfection and killing on the goods; the first outlet fan 4 blows air in the direction of the goods from the top to the bottom (the direction shown in fig. 1).

In a further scheme, the degradation module further comprises a plurality of negative ion generators 3, and the negative ion generators 3 are uniformly distributed in an S-shaped channel formed by the staggered arrangement of a plurality of degradation catalyst plates 11. The negative ion generator 3 is used for high-voltage discharge to generate oxygen ions, and the high-voltage discharge and the ultraviolet light tube 2 excite the catalyst to act synergistically, so that the chemical reaction is accelerated, and the ozone degradation speed is increased; the negative ion generator 3 has a function of attracting and drawing fine particles due to the electrostatic effect, and the electrostatic field has a function of adsorbing and decomposing substances and also has a function of guiding airflow.

A heating degradation cavity 8 is arranged in the degradation cavity 1 and below the conveyor belt 6, a plurality of far infrared heaters 7 which are arranged in a staggered mode are arranged in the heating degradation cavity 8, and each far infrared heater 7 can correspond to one second degradation catalyst plate 9 through the far infrared heaters 7; the outlet of the thermal degradation chamber 8 is in communication with the kill chamber 12 via a second outlet fan 18. When the degradation dry fog is blown downwards, the degradation dry fog enters the far infrared heater 7, the far infrared heater 7 can heat the temperature of the degradation dry fog to 40-50 ℃, and secondary degradation is carried out through the synergistic degradation effect of the far infrared heater 7 and the second degradation catalyst plate 9, so that ozone is further degraded, and the content of ozone at the outlet of the device is reduced.

A second sterilizing cavity is arranged in the sterilizing cavity 12 and below the conveyor belt 6, a plurality of oxidation dry fog sterilizing modules 13 are arranged in the second sterilizing cavity, the heating degradation cavity 8 is communicated with the second sterilizing cavity, and an outlet of the second sterilizing cavity is communicated with the sterilizing cavity 12. The oxidation dry fog disinfection module 13 in the second disinfection chamber sprays the dry fog through the nozzle 14, disinfects the goods from the below of goods 15, and the oxidation dry fog disinfection module 13 in the second disinfection chamber, with the oxidation dry fog disinfection module 13 combined action on goods 15 above goods 15, and the disinfection dry fog in the second disinfection chamber mixes with the degradation dry fog that comes from in the heating degradation chamber 8 for the dry fog temperature rises, utilizes higher temperature, further improves the effect of disinfecting.

A first movable plate 16 for pushing to open is arranged on the sterilizing device and at the inlet of the conveyor belt 6, a second movable plate 5 for pushing to open is arranged at the outlet of the conveyor belt 6, and a third movable plate 17 for pushing to open is arranged between the sterilizing cavity 12 and the degradation cavity 1. When the first movable plate 16, the second movable plate 5 and the third movable plate 17 are not opened, the first movable plate and the second movable plate are in a closed state, so that the killing cavity 12 and the degradation cavity 1 become mutually independent and closed cavities, and the opening can be pushed by the movement of goods.

A cargo killing method comprises the following steps:

1) goods enter from an inlet of the sterilizing device, pass through the sterilizing cavity, and are comprehensively sterilized in the sterilizing cavity through the mixed dry fog of ozone and hydroxyl radicals; one part of the generated mixed dry fog is used for sterilizing goods, and the other part of the generated mixed dry fog enters a degradation module in a degradation cavity;

2) the goods enter the degradation cavity, the ozone overflowing from the killing cavity is degraded, oxygen molecules, water and a small amount of hydroxyl free radicals are generated in the degradation process, and the goods are secondarily killed; after the degradation dry fog and residual extremely small amount of ozone are blown into a heating degradation cavity below the goods, further heating degradation is carried out through the synergistic effect of the far infrared heater 7 and the second degradation catalyst plate 9;

3) the goods are transported out from the outlet of the device after being sterilized for the second time, and the ozone content at the outlet is lower than 0.16mg/m³And meets the national leakage standard of ozone-based disinfection machines.

The dry fog that further degrades through the heating degradation chamber can enter into the chamber of killing once more, continue to participate in the killing for form the endless dry fog of killing at device inside, far infrared heater 7 sends far infrared wave band ray and carries out catalytic degradation once more to remaining ozone and harmful substance, tail gas passes through second outlet fan 18 reentry and disappears and kill chamber 12 and carry out new round of chemical reaction and circulate the dry fog cyclic utilization of killing to the goods, can improve the effect of killing of whole device, and the security.

The above-mentioned embodiments are preferred embodiments, it should be noted that the above-mentioned preferred embodiments should not be considered as limitations to the utility model, and the scope of protection of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and these modifications and adaptations should be considered within the scope of the utility model.

Claims

1. A goods killing device which is characterized in that: the device comprises a sterilizing cavity (12), a degrading cavity (1) and a conveyor belt (6), wherein a plurality of oxidation dry fog sterilizing modules (13) are arranged in the sterilizing cavity (12), the degrading module is arranged in the degrading cavity (1), and the conveyor belt (6) passes through the sterilizing cavity (12) and the degrading cavity (1) to transport goods; the oxidation dry fog disinfection module (13) generates ozone and hydroxyl radical mixed dry fog in the disinfection cavity (12), and the degradation module is used for degrading ozone in the degradation cavity (1).

2. The cargo killing apparatus according to claim 1, wherein: the oxidation dry fog disinfection module (13) comprises an ozone generator and a hydroxyl radical generator, the oxidation dry fog disinfection modules (13) are arranged above the conveyor belt (6), and the disinfection cavity (12) and the degradation cavity (1) are separated from each other to form an independent closed cavity.

3. The cargo killing apparatus according to claim 1 or 2, wherein: the degradation module comprises a plurality of first degradation catalyst plates (11), each first degradation catalyst plate (11) corresponds to one ultraviolet light tube (2), and the first degradation catalyst plates (11) are arranged in a staggered mode to form an S-shaped channel; the degradation module is arranged above the conveyor belt (6) and communicated with the disinfection cavity (12) through a degradation cavity air inlet fan (10), and an air outlet of the degradation module is communicated with the degradation cavity (1) through a first outlet fan (4).

4. The cargo killing apparatus according to claim 3, wherein: the degradation module also comprises a plurality of negative ion generators (3), and the negative ion generators (3) are uniformly distributed in an S-shaped channel formed by the staggered arrangement of a plurality of degradation catalyst plates (11).

5. The cargo killing apparatus according to claim 4, wherein: a heating degradation cavity (8) is arranged in the degradation cavity (1) and below the conveyor belt (6), a plurality of staggered far-infrared heaters (7) are arranged in the heating degradation cavity (8), and each far-infrared heater (7) corresponds to one second degradation catalyst plate (9); the outlet of the heating degradation cavity (8) is communicated with the sterilizing cavity (12) through a second outlet fan (18).

6. The cargo killing apparatus according to claim 5, wherein: the second disinfection chamber is arranged in the disinfection chamber (12) and below the conveyor belt (6), a plurality of oxidation dry fog disinfection modules (13) are arranged in the second disinfection chamber, the heating degradation chamber (8) is communicated with the second disinfection chamber, and an outlet of the second disinfection chamber is communicated with the disinfection chamber (12).

7. The cargo killing apparatus according to claim 6, wherein: a first movable plate (16) which is pushed to open is arranged at the inlet of the conveyer belt (6) and on the sterilizing device, a second movable plate (5) which is pushed to open is arranged at the outlet of the conveyer belt (6), and a third movable plate (17) which is pushed to open is arranged between the sterilizing cavity (12) and the degradation cavity (1).