JPS58121954A - Apparatus for sterilizing particulate material under heating - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for heat sterilization of powder and granular materials.
In particular, it is a device with fast treatment speed and high thermal efficiency, and is it capable of processing? Furthermore, the heat sterilization equipment for powder and granules has been proposed in the past, but these devices have a short processing time. However, it is not always satisfactory in terms of shortening the time, increasing efficiency, and efficient use of thermal energy.

Does the present invention overcome the drawbacks of such conventional devices? This method was developed as a solution to the problem, and the method uses high-temperature, high-humidity hot air and circulates it throughout the entire process to completely speed up the processing speed and increase thermal efficiency. After the humidity was adjusted and a steady state was reached, he switched the supply destination of the powder and granules to the starting end of the hot air supply pipe, processed the powder and granules in the pipe, and applied pressure to further increase the processing volume ti'. It's a friend.

Willing to invent this invention? To explain in detail based on the illustrated example, reference numeral l denotes a dryer, and for example, it is a horizontal drum type. The supplied powder and granular material is stirred and transferred to the right end side of the system by rotation t1, and is brought into contact with hot air supplied into the drum to perform heat sterilization. Similarly, the dryer is not limited to a horizontal type, and a vertical fluidized bed type may also be used.

For this drying Ill, first, as an example, a hot air supply pipe 5t is formed from a heater 3 equipped with a burner 2, through a humidifier 41r, to the beginning of the dryer I, and from the end of the dryer I, a hygrometer 6 and a dust collector 1 are formed. )? 'The hot air circulation pipe Bt leading to the heater 3 through the shadow formation, from the Mayu hopper 9 to the input conveyor lO?
A granular material input path 11 is formed which leads to the start end of the dryer 1, and a granular material take-out path 14 is formed from the end of the dryer 1 to the product bunker 13 via the take-out conveyor 12.
In heat sterilization using high-temperature, high-humidity hot air, the humidity of the hot air is adjusted appropriately according to the material. This is done by automatically or manually controlling the four humidifiers accordingly.

Furthermore, the hot air circulation pipe 8 is equipped with a circulation fan 15, and an exhaust pipe 167 is provided in the middle of the pipe, and a valve or damper 17.1 is provided.
8. Exhaust flow direction? It is something that can be switched. The lower end of the dust collector 7 is connected to the take-out conveyor 12 of the powder take-out path 14 through 19 discharge valves or discharge dampers.
Same, dust collector 7 is 10! Although a cyclone is shown as i, the present invention is not limited to this, and any known device such as a dust collector using a baffle plate may be used as appropriate.

In the apparatus configured in this way, the feeding conveyor 10 in the powder feeding path 11 is also connected to the starting end (indicated by the addition symbol in the figure) of the hot air supply pipe 5, so that it can be switched freely. In the illustrated embodiment, as an example, a reversible conveyor is placed horizontally, with a hopper 9 facing the center of the conveyor, one end of which is connected to the starting end of a dryer l, and the other end of the conveyor placed horizontally.
Connected to the downstream of the humidifier 4 in the hot air supply pipe 5, and in the transfer direction of the input conveyor LO? It is configured so that the light and sound to be supplied to the powder and granular material can be selected by switching. Incidentally, although the input conveyor is shown in the above embodiment, it is not limited thereto. In short, it is sufficient that the conveyor is arranged such that the powder supply destination is connected to both the starting end of the dryer 1 and the starting end of the hot air supply pipe 5, and can be switched freely.

The present invention has the configuration as described above,
It operates as follows. First of all, the dryer? It is rotatably driven and also has an input conveyor 10. The take-out conveyor L21j is driven and the burner 2 is ignited to generate hot air t-. The hot air is made highly humid by the humidifier 4, becomes high temperature, high humidity hot air, passes through the hot air supply pipe 5, and is supplied into the dryer 1.

- A constant amount of powder and granular material is dropped from the 1000-pound container 9 onto the input conveyor lO, and the input conveyor to'2 is driven to the right in the figure to be input into the dryer l.

In the dryer 1, the granular material is stirred and sterilized by heating in contact with hot air, and is transferred and discharged to the end, and is stored in a product bunker by a take-out conveyor 12. On the other hand, the high-temperature, high-humidity hot air is discharged from the end of the dryer 1 and reaches the hot air circulation pipe 8), where fine particles are first separated and removed by the dust collector 7, and then by the circulation fan 15. The hot air is returned to the heater 3 and supplied to the hot air supply pipe 5 again.
In addition, the humidity of the hot air is detected by a hygrometer 6,
The humidity is adjusted by the humidifier 4 until it reaches a predetermined value, and after reaching the predetermined humidity, it enters a steady state.
In such a case, the feeding conveyor TO 2 is reversed and the powder is fed into the starting end of the hot air supply pipe 5. Then, the powder is transported through the hot air supply pipe 5 by hot air adjusted to an appropriate humidity, and is simultaneously heat sterilized and delivered to the dryer 1.

In this way, the hot air supply pipe 51? By using it for heat sterilization, the processing capacity of the equipment increases and the processing capacity improves? It is possible to achieve this goal.

By the way, is this kind of equipment efficient in processing? Second, it should be relatively large, and the diameter and length of the heat ML supply pipe 5 should be sufficiently large. By making full use of it, it is possible to make substantial improvements in processing capacity.

As described in detail above, the present invention enables heat sterilization treatment with high processing speed and high thermal efficiency by circulating high-temperature, high-humidity hot air. It is a device with excellent overall performance, with large capacity and the ability to save heat energy.

[Brief explanation of drawings]

Is the figure an example of the present invention? FIG. l; Dry 4! l 2; Part 3; Heater
4; Humidifier 5; Hot air supply pipe 6; Humidity total 7; Dust collector 8; Hot air circulation pipe 9: Hopper l
O: Input conveyor 11: Powder input path 12; Takeout conveyor 13; Product bunker 14: Powder removal path 15; Circulation fan
16; Exhaust pipe 17. 18; Valve (or damper) 19; Exhaust valve (or exhaust damper); Hot air supply pipe starting end

Claims (1)

[Claims] The hot air supply pipe from the heater to the humidifier to the start of the dryer, and the hygrometer and dust collector from the end of the dryer? It forms the hot air circulation pipe that goes through the heater, and also forms the entire powder input path from the hopper to the input conveyor to the start of the dryer, and also the take-out conveyor from the end of the dryer. The powder and granule material removal route that leads to the product bunker? 2. A heating sterilization apparatus for powder and granular material, characterized in that the feeding conveyor in the powder feeding path is also connected to the starting end of the hot air supply pipe and can be switched freely.