CN202072024U - Baking oven with online sterilizing function for tunnel type sterilizing drying machine - Google Patents

Abstract

The utility model discloses an oven with on-line sterilization function for a tunnel-type sterilization dryer, which comprises a box body and a hot air component installed in the box body, a conveying mesh belt and a heater. The hot air component is located above the conveying mesh belt , the air inlet end of the heater communicates with the bottom of the conveying mesh belt through the air return channel, an air inlet chamber is formed between the air outlet end of the heater and the air inlet end of the hot air assembly, and more than one set of The sterilizing gas generating device, the outlet of the sterilizing gas generating device communicates with the air inlet chamber. The utility model has the advantages of simple and compact structure, low cost, wide application range, convenient installation and use, and can be regularly sterilized on-line to improve the quality of medicines.

Description

Oven with online sterilization function for tunnel sterilization dryer

technical field

The utility model mainly relates to the fields of packaging machinery for food and pharmacy, in particular to a sterilizing dryer used in the fields of food and pharmacy.

Background technique

In food, pharmaceutical and other packaging machinery industries, the tunnel sterilization dryer is mainly used for drying and sterilizing medicine bottles to remove pyrogens. According to different structural functions, the dryer is divided into a preheating section, a high temperature section and a cooling section. The high-temperature section is mainly to put the medicine bottles washed by the bottle washing machine into the high-temperature oven for drying, sterilization or depyrogenation, and the temperature can reach 250°C-350°C. Generally, long-term high-temperature baking can kill heat-resistant bacteria in the high-temperature section. Although high-temperature-resistant bacteria account for less than 1‰ of the total number of bacteria, these bacteria have been nourished in the high-temperature section for a long time, and more and more are accumulated over time. However, the oven in the high-temperature section does not It is easy to open to clean or sterilize, so when the high-temperature-resistant bacteria reach a certain proportion, it will contaminate the medicine bottle and directly affect the quality of the medicine.

Utility model content

The technical problem to be solved by the utility model is to provide a tunnel type sterilizing dryer which is simple and compact in structure, low in cost, wide in application range, easy to install and use, and capable of regular on-line sterilization to improve the quality of medicines. Use an oven with in-line sterilization function.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

An oven with an online sterilization function for a tunnel-type sterilizing dryer, including a box body and a hot air assembly installed in the box body, a conveying mesh belt, and a heater. The hot air assembly is located above the conveying mesh belt. The air inlet end of the heater communicates with the bottom of the conveying mesh belt through the return air passage, and an air inlet chamber is formed between the air outlet end of the heater and the air inlet end of the hot air assembly. The body is equipped with more than one group of sterilizing gas generating devices, and the outlets of the sterilizing gas generating devices communicate with the air inlet chamber.

As a further improvement to the utility model:

The sterilizing gas generating device includes a sterilizing gas generator, a transmission pipeline and a sterilizing gas inlet, the sterilizing gas inlet is opened on the top wall of the box, and the gas outlet of the sterilizing gas generator passes through A transfer conduit communicates with the sterilizing gas inlet. the

Valves are installed on the conveying pipeline.

A front damper that can be opened and closed is provided at the junction of the box body and the preheating section, and a rear damper that can be opened and closed is arranged at the junction of the box body and the cooling section.

A gas concentration detection probe installation hole is provided on the side wall of the box, and a gas concentration detection probe or a probe block is inserted in the sterilization gas concentration detection probe installation hole. the

The installation hole of the sterilization gas concentration detection probe is opened on the side wall between the high-temperature high-efficiency filter and the conveying mesh belt.

Compared with the prior art, the utility model has the advantages that: the utility model installs more than one group of sterilizing gas generating devices on the box body, and the outlet of the sterilizing gas generating device is connected with the air inlet chamber in the hot air blower When the sterilizing gas generating device is turned on, the sterilizing gas circulates in the inner cavity of the box under the action of the hot air blower to form a circulating air, which can regularly sterilize the inner cavity of the box on-line to avoid the accumulation of high-temperature resistant bacteria The medicine bottle is polluted and the medicine quality is improved; the utility model has the advantages of simple and compact structure, low cost, convenient installation and use, and wide application range.

Description of drawings

Fig. 1 is the transverse cross-sectional structure schematic diagram during normal production of the utility model;

Fig. 2 is a schematic diagram of a transverse cross-sectional structure during on-line sterilization of the present utility model;

Fig. 3 is a schematic diagram of a longitudinal section structure of the utility model during in-line sterilization.

illustration

1. Preheating section; 2. Cabinet; 3. Cooling section; 4. Front damper; 5. Rear damper; 6. Sterilizing gas inlet; 7. Valve; 8. Air inlet chamber; 9. Hot air blower; 10 11. High-temperature high-efficiency filter; 12. Conveying mesh belt; 13. Conveying pipeline; 14. Sterilizing gas generator; 15. Probe block; 16. Sterilizing gas concentration detection probe; 17. Heater; 18. Air return channel.

Detailed ways

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.

As shown in Figure 1, Figure 2 and Figure 3, the tunnel type sterilization dryer of the present utility model is an oven with on-line sterilization function, including a box body 2, a hot air assembly installed in the box body 2, and a conveyor belt 12. Heater 17, the hot air assembly is located above the conveying mesh belt 12, the air inlet end of the heater 17 communicates with the bottom of the conveying mesh belt 12 through the return air passage 18, and the air outlet end of the heater 17 is connected to the inlet of the hot air assembly. An air inlet chamber 8 is formed between the air ends. The hot air assembly includes a hot air blower 9, an air cover 10, and a high-temperature high-efficiency filter 11 arranged sequentially from top to bottom. On the bottle body, this structure is a conventional technology, so it will not be repeated here.

The utility model is equipped with more than one group of sterilizing gas generating devices on the box body 2 , and the outlet of the sterilizing gas generating devices communicates with the air inlet chamber 8 . By installing a sterilizing gas generating device on the box body 2, and making the gas outlet of the sterilizing gas generating device communicate with the air inlet chamber 8, when the sterilizing gas generating device is turned on, the sterilizing gas can flow in the hot air blower 9 Under the action, it circulates in the inner cavity of the box body 2 to form a circulating air to regularly sterilize the inner cavity of the box body 2 on-line, which can avoid the accumulation of high-temperature-resistant bacteria from contaminating the medicine bottle and improve the quality of the medicine. The structure is simple and compact, and it is easy to install Easy to use.

In this embodiment, the sterilizing gas generating device includes a sterilizing gas generator 14, a transmission pipeline 13 and a sterilizing gas inlet 6, the sterilizing gas inlet 6 is set on the top wall of the box body 2, and the sterilizing gas generator 14 The gas outlet is communicated with the sterilizing gas inlet 6 through the transmission pipeline 13, and the transmission pipeline 13 is provided with a valve 7, which can control the input of the sterilizing gas in real time.

A front damper 4 that can be opened and closed is provided at the junction of the box body 2 and the preheating section 1 , and a rear damper 5 that can be opened and closed is arranged at the junction of the box body 2 and the cooling section 3 . When in-line sterilization is required, closing the front air door 4 and the rear air door 5 can form a relatively sealed environment inside the box body 2 and prevent the sterilizing gas from leaking to the outside of the box body 2 at the same time. On the side wall between the high-temperature high-efficiency filter 11 and the conveyor belt 12, the box body 2 is provided with a sterilization gas concentration detection probe installation hole, and a sterilization gas concentration detection probe 16 is inserted in the installation hole of the sterilization gas concentration detection probe. Or probe block 15. When in-line sterilization is not required, a probe plug 15 is inserted into the installation hole of the sterilization gas concentration detection probe; when in-line sterilization is required, the probe plug 15 is pulled out, and the sterilization gas concentration detection probe 16 is inserted for detection The concentration of the sterilizing gas poured into the casing 2. the

On-line sterilization process: as shown in Figure 2 and Figure 3, close the front damper 4 and the rear damper 5, pull out the probe plug 15, insert the sterilization gas concentration detection probe 16, open the valve 7, turn on the hot air blower 9, turn on the Bacteria gas generator 14, the sterilizing gas is transported to the air inlet chamber 8 in the box body 2 through the transmission pipeline 13, and is blown to the wind cover 10, the high-temperature high-efficiency filter 11, and the high-temperature sterilization chamber under the action of the hot air blower 9 After conveying the mesh belt 12, the sterilizing gas reaches the air return channel, flows to the air inlet chamber 8 through the heater 17, is inhaled by the hot air blower 9 again and blows into the casing 2 to form a circulating air. As the sterilizing gas is continuously poured into the box body 2, the concentration of the sterilizing gas in the box body 2 will gradually increase, and the sterilizing gas concentration will be detected by the sterilizing gas concentration detection probe 16. When the sterilizing gas concentration is reached, the sterilizing gas will be closed. Gas generator 14, when it is lower than the sterilizing concentration, open the sterilizing gas generator 14 again, close the sterilizing gas generator 14 again until a certain sterilization time is reached, close the valve 7, open the front damper 4 and the rear damper 5, The sterilizing gas in the box 2 will diffuse into the room and be discharged with the air-conditioning wind. When the concentration of the sterilizing gas in the box 2 drops to a level that does not affect human health, the entire sterilization process ends.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should be regarded as the protection scope of the utility model.

Claims (6)

1. a tunnel sterilizing and drying machine is with the baking oven with online sterilizing function, comprise casing (2) and be installed in the interior hot blast assembly of casing (2), transmit guipure (12), temperature booster (17), described hot blast assembly is positioned at the top of transmitting guipure (12), the air intake of described temperature booster (17) is connected by the below of return air channel (18) with described transmission guipure (12), be formed with air intake chamber (8) between the outlet air end of described temperature booster (17) and the air intake of described hot blast assembly, it is characterized in that: be equiped with one group of above sterilizing gas generating means on the described casing (2), the outlet of described sterilizing gas generating means is connected with described air intake chamber (8).

2. the baking oven of tunnel sterilizing and drying machine according to claim 1 with online sterilizing function, it is characterized in that: described sterilizing gas generating means comprises sterilizing gas producer (14), transfer canal (13) and sterilizing gas inlet (6), described sterilizing gas inlet (6) is opened on the roof of described casing (2), the outlet side of described sterilizing gas producer (14) by described transfer canal (13) and described sterilizing gas enter the mouth (6) be communicated with.

3. tunnel sterilizing and drying machine according to claim 2 is characterized in that: be equiped with valve (7) on the described transfer canal (13) with the baking oven with online sterilizing function.

4. according to claim 1 or 2 or 3 baking ovens of described tunnel sterilizing and drying machines with online sterilizing function, it is characterized in that: described casing (2) is gone up and the junction of preheating section (1) is provided with able to turn on or off preceding air door (4), and described casing (2) is gone up and cooling section (3) junction is provided with able to turn on or off back air door (5).

5. according to claim 1 or 2 or 3 baking ovens of described tunnel sterilizing and drying machines with online sterilizing function, it is characterized in that: offer sterilizing gas concentration detection probe mounting hole on described casing (2) sidewall, plug sterilizing gas concentration detection probe (16) or probe chock (15) in the described sterilizing gas concentration detection probe mounting hole.

6. tunnel sterilizing and drying machine according to claim 5 is characterized in that with the baking oven with online sterilizing function: described sterilizing gas concentration detection probe mounting hole is opened on the sidewall between described high temperature high efficiency particulate air filter (11) and the transmission guipure (12).

Images