JP2576799Y2 - Wastewater evaporator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for evaporating sewage such as agricultural wastewater and industrial wastewater.

[0002]

2. Description of the Related Art Conventionally, sewage discharged from livestock houses and the like has been treated using various sewage treatment methods such as a water purification treatment method and a soil infiltration treatment method. The method may involve contamination of rivers, soil, groundwater, etc. Therefore, there is proposed a system of a so-called sewage evaporation apparatus in which sewage is sprayed into a processing chamber to which outside air is blown, and the sprayed sewage is evaporated from an evaporation port of the processing chamber. However, in the system of the sewage evaporation apparatus , the amount of evaporation greatly changes in accordance with atmospheric conditions such as humidity and temperature, so that the system cannot be operated when the outside air humidity is high such as rainy weather. As a result, there is a drawback that the operation time greatly depends on the weather and the like, and the throughput greatly varies.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has been made with the object of providing a sewage evaporation treatment apparatus which can eliminate these disadvantages. a processing chamber having a blower for sending air into the processing chamber, sewage evaporator stage der and a spraying device for spraying the processing wastewater into the processing chamber connexion, the soil water evaporator stage, the process chamber or process wastewater A heating device for heating the chamber, a humidity sensor for detecting humidity in the processing chamber,
Automatic operation control of heating device based on humidity detected by sensor
And a control unit for controlling the detection.
Comparing and judging the known humidity and the preset set humidity,
Operate the temperature device when the detected humidity is higher than the set humidity.
And set to stop when the humidity is lower than the set humidity.
It is characterized by having. And the present invention is
With this configuration, the sewage evaporation apparatus can always be operated smoothly irrespective of the atmospheric conditions to improve the processing capacity.

[0004]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a greenhouse constituting a sewage treatment apparatus. The greenhouse 1 is formed in a tunnel shape having a predetermined total length, and a predetermined opening area is provided on a ceiling surface on the terminal side. Is formed.

[0005] Reference numeral 2 denotes a spray nozzle provided at the start end of the greenhouse 1. The spray nozzle 2 decomposes sewage supplied from a storage tank 3, which will be described later, into extremely fine particles and sprays it into the greenhouse 1. Is what you do. That is, in the present embodiment, wastewater such as manure discharged from the barn 4 is temporarily stored in the storage tank 3, solid matter is removed by appropriate means, and then supplied to the spray nozzle 2 by the pump 5. It is configured to

Further, reference numeral 6 denotes a fan provided at the starting end of the greenhouse 1. The fan 6 is provided inside the greenhouse 1 in order to promote the evaporation of the finely sprayed wastewater into the atmosphere. The outside air is forcibly sent. In other words, fine-particle wastewater and outside air are supplied into the greenhouse 1, and the wastewater evaporated into the outside air is discharged from the evaporation port 1a to the outside of the greenhouse 1.

[0007] Further, a heating device 7 is provided outside the starting end of the greenhouse 1.
Heats the inhaled outside air and supplies the heated outside air into the greenhouse 1. That is, when the inside of the greenhouse 1 is heated by the heating device 7, the relative humidity in the greenhouse 1 can be reduced to greatly promote the evaporation of sewage. The sewage evaporation system can be operated even in a high state.

On the other hand, 9 is a control section of the sewage evaporation treatment system, which is configured using a so-called microcomputer (including CPU, ROM, RAM, etc.). Are signals from an automatic operation switch 10 for switching between automatic operation and manual operation, a humidity sensor 11 disposed below the evaporating port 1a of the greenhouse 1, a tank sensor 12 for detecting the storage amount of the storage tank 3, and the like. On the other hand, an operation signal is output to the spray nozzle 2, the pump 5, the fan 6, the heating device 7, and the like, based on the input signals. That is,
A control program for controlling the automatic operation of the sewage evaporation system is stored in the control unit 9 in advance.
The control procedure of the control program will be described below based on a flowchart.

In a state where the control program is started,
First, the state of the automatic operation switch 10 is determined, and this is
In the case of F, the manually operated control routine defined separately is executed. On the other hand, when the automatic operation switch 10 is ON, after the storage amount of the storage tank 3 is confirmed based on the detection of the tank sensor 12, The sewage evaporation system is operated by operating the spray nozzle 2, the pump 5 and the fan 6, and before that, a comparison judgment between the detected humidity Sk of the humidity sensor 11 and a preset set humidity S is made. I'm going to do it. Then, when it is determined that the detected humidity Sk is lower than the set humidity S, the heating device 7 is stopped to perform the evaporating process at normal temperature, and when the detected humidity Sk is equal to or higher than the set humidity S, the heating device 7 is heated. The relative humidity in the greenhouse 1 is automatically reduced by operating the heating device 7.

In the embodiment of the present invention constructed as described above, the vinyl house 1 is filled with sewage water which has been turned into fine particles by the spray nozzle 2 and the outside air which is forcibly sent by the fan 6. Supplied and greenhouse 1
The moisture of the sewage supplied to the inside evaporates into the outside air and is discharged to the outside through the evaporating port 1a formed in the ceiling of the plastic greenhouse 1. Greenhouse 1 based on automatic operation of heating device 7
The inside is heated, and in this state, greenhouse 1
As a result, the relative humidity in the inside decreases, and the evaporation process can be continued. Therefore, while evaporating sewage, the system can be operated even when the outside air humidity is high.As a result, the disadvantage that the operation time is greatly affected by the weather and the like is eliminated, and the processing capacity is greatly improved. Can be measured.

In addition, in this apparatus, since the heating device 7 is automatically turned on and off based on the detection of the humidity sensor 11, there is no need for troublesome manual operation, or the heating device 7 may be operated unnecessarily. It is possible to eliminate the inconvenience and save the energy for heating. In addition, the heating device 7
Operation is performed at a set humidity where the detected humidity in the processing chamber is set in advance.
Over time, resulting in reduced sewage evaporation
If the high humidity condition
And then heat the wastewater or the wastewater.
It can lower the humidity and promote the evaporation of wastewater,
Heating if evaporation is promoted without heating
When the operation of the device 7 is stopped, the sewage treatment device
Operation with stable processing capacity for weather, atmospheric conditions, etc.
Independent and save on running costs
Can be done in a state .

The present invention is, of course, not limited to the embodiment described above. For example, the present invention is not intended to heat the treatment chamber, but to heat the sewage to promote the evaporation of the sewage. It is a good thing. Furthermore, as shown in the second and third embodiments, it is also possible to use exhaust heat from factories or the like without providing a dedicated heating device as in the above embodiment as the heating means. That is, the second embodiment is configured to supply the exhaust heat discharged from the food factory 13 to the fan 6 to heat the inside of the greenhouse 1, and the third embodiment is configured to The hot wastewater discharged from 13 is supplied to a heat exchanger 14, and the heat exchanger 14 is configured to heat the sewage.
There is an advantage that it is not possible to effectively use the hot waste water, and the operating cost can be significantly reduced by eliminating the need for heating fuel.

[0013]

[Effects] In summary, since the present invention is configured as described above, the present invention performs sewage evaporation by spraying sewage into a processing chamber into which outside air is sent.
Equipped with a heating device to heat the treatment room or treated wastewater,
The operation of the heating device is performed in such a manner that the detected humidity in the processing chamber is controlled in advance.
As a result when the humidity exceeds the set humidity,
In the event of high humidity where evaporation of sewage is suppressed,
Heating the treatment room or sewage based on the operation of the heating device
To reduce the relative humidity in the processing chamber and promote the evaporation of wastewater.
On the other hand, evaporation is promoted without heating in low humidity conditions.
If this occurs, the operation of the heating device will be stopped.
Operation of sewage treatment equipment with stable
Running without being affected by conditions such as air and atmosphere
This can be done in a cost-saving manner.

[Brief description of the drawings]

FIG. 1 is an overall view of a wastewater evaporation treatment system.

FIG. 2 is a block diagram schematically showing a control mechanism.

FIG. 3 is a flowchart showing a control procedure.

FIG. 4 is an overall view of a sewage evaporation treatment system showing a second embodiment.

FIG. 5 is an overall view of a sewage evaporation treatment system showing a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Greenhouse 1a Evaporation port 2 Spray nozzle 3 Storage tank 4 Livestock house 5 Pump 6 Fan 7 Heating device 9 Control part 11 Humidity sensor

Claims (1)

(57) [Scope of request for utility model registration] 1. A sewage evaporating apparatus comprising: a processing chamber having an evaporating port; a blower for sending air into the processing chamber; and a spraying device for spraying sewage into the processing chamber. The apparatus , a heating device for heating the treatment room or the treatment wastewater, a humidity sensor for detecting the humidity in the treatment room,
Automatic heating device based on the humidity detected by the humidity sensor
And a control unit for performing operation control, and the control unit includes:
Compare and determine the detected humidity and a preset set humidity
If the detected humidity is higher than the set humidity,
Is set to operate and stop when the humidity is lower than the set humidity.
A wastewater evaporative treatment device characterized in that it is specified .