JPS5847605B2 - Method for deodorizing and releasing air containing excrement odor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The object of the present invention is to efficiently remove the manure odor contained in the air released into the atmosphere from a manure transport vehicle or a manure drying device, and to facilitate the prevention of pollution caused by these bad odors. This was done as a.

The smell of manure and urine is the closest thing to human life, and manure trucks emit bad odors into the air all over the place, and chicken manure is dried in remote mountains and fields. However, it is said that the foul odor spreads over several meters in the surrounding area, and effective deodorization measures are required.

Ammonia, hydrogen sulfide, mercaptan, trimethylamine, methyl sulfide, etc. have been reported as the main malodorous components, and combustion methods have been introduced as preferred deodorizing methods, but there is still no satisfactory equipment for carrying out these methods. Not introduced.

When the present invention releases air containing excrement odor into the atmosphere,
This problem has been solved by creating a combustion device that exhibits deodorizing ability that was previously unattainable.The gist of the device can be explained as follows with reference to Figures 3 and 4, which show an example of its implementation. be.

In Figures 3 and 4, 1 is a combustion tube, which consists of a burner case 4 in the figure, the burner housed in the case, and a fixing base 6, 2 is a cylindrical portion, and 2a is an inlet. edge wall,
1a is a flame introduction pipe provided cylindrically penetrating the center of the end wall 2a, 1a' is a flame introduction port of the core tube, 2b is an end wall near the exit, and 1b is an exhaust port in the end wall 2b. 1b' is an exhaust pipe that opens.

Reference numeral 8 denotes a spiral strip fin that protrudes spirally from the inner surface 2' of the cylindrical portion 2. The fin 8 forms a spiral passage 8a between the pitches of the fins, and the fin width W is the same as that of the cylindrical portion 2. Since the radius r is smaller, a central passage 9 is formed which is surrounded by the spiral passage 8a, extends in the axial direction, and communicates from the flame introduction port 13' to the exhaust port 1b'.

8c, a part of the outer peripheral edge of the spiral band fin is attached to the inner surface 2 of the cylindrical part.
This is a fixed welded part.

10 is an opening 10 on the inner surface 2'a of the flame introduction side of the cylindrical part 2.
The odor-containing air is blown tangentially to the inner circumferential surface of the circular wall by means of the tube 10.

The burner case 4 shown in FIG. 3 and the burner housed in the case are similar to the case and burner shown in FIG. It consists of a pipe 5b, a fuel supply pipe 5c, a solenoid pump 5d, a 5-wind J5es air supply control shutter 5f, etc., and 4 is a case for storing each of these parts, 4b
, 4c, 4d, 4e are the four walls of the case, 4f is the top wall, 4g
is the bottom wall.

Further, a flame guide tube 4a is protruded from the side wall 4b, and the flame guide tube 4a is connected to the flame introduction tube 1a and connected to the guide rod 4a' of 4a.
is communicated with the inlet 1a' of 1a.

5a exists in the flame injection pipe 5b, and converts the fuel into flame to emit 5
This is a nozzle that injects flame from b.

Also, 4W is the door, 5S is the start switch, 5p is the ignition button,
Reference numeral 6 indicates a fixed base, 6a indicates a leg, single line arrows other than cross sections indicate the direction of odor-containing air, and double line arrows indicate the direction of flame.

Various liquid fuels such as propane gas, natural gas, and petroleum-based fuels are used as fuel, and these fuels can be used in a burner nozzle of 5.1 l! The flame is injected and ignited into the flame injection pipe 5b to form a flame, and the formed flame is press-fitted into the cylindrical part from the flame inlet 13' of the cylindrical part 2, and passes through the central passage 9 surrounded by the spiral passage 8a. The odor-containing odor advances straight in the axial direction of the cylinder and is discharged from the exhaust port 1b', while the odor-containing odor is tangentially press-fitted into the inner circumferential surface 2/a of the cylinder wall through the tangential blowing pipe 10 through which the flame of the cylinder 2 is introduced. The air is guided by the spiral strip fin 8, spirals through the spiral passage 8a, and is discharged from the exhaust port 1b.

In this case, it goes without saying that if the blowing direction of the odor-containing air is clockwise with respect to the exhaust port, the spiral strip fin is also provided clockwise, and if it is counterclockwise, the spiral strip fin is provided counterclockwise.

The effects obtained by the apparatus of the present invention are shown in the lower column of "Example 1" in Table 1 below, and the details are described in Example 1.

Next, some conventional devices to be compared with the device of the present invention will be described, and the effects obtained by the device of the present invention will be compared with the effects obtained by these conventional devices.

The device shown in Figures 1 and 2 is an example of a conventional device, and unlike the device shown in Figures 3 and 4 according to the present invention, there is no spiral strip fin in the cylindrical portion 2, The difference is that it is equipped with a dispersion plate for odor-containing air and there is no restriction on the direction in which the blowing pipe can be installed.

To explain these differences in more detail, in Figures 1 and 2,
3 is an odor-containing air blowing pipe, 3a is an odor-containing air distribution plate, 33' is an odor-containing air distribution hole, and 3'' is an inlet end wall 2a and a dispersion plate 3.
A dispersion chamber formed between the odor-containing air blowing pipe 3 and
has an opening 3' in the dispersion chamber 3''.

Also, a flame introduction pipe 1a protrudes from the center of the end wall 2a near the entrance.
is opened in the center of the odor-containing air distribution plate 3a in a cylindrical direction.

Other than these parts, the parts shown in the first to second figures are the same as those shown in the third to fourth figures, and the same reference numerals indicate the same parts.

Since the conventional apparatus shown in the first and second figures is constructed as described above, the odor-containing air blown into the dispersion chamber 3'' from the odor-containing air blowing pipe 3 is discharged through the dispersion holes 3a' provided in the dispersion plate 3a. The flame passes through the cylinder, combines with the flame separately blown into the cylinder 2 from the flame introduction port 1a', passes through the cylinder, and is discharged out of the cylinder from the exhaust port 1b'.

The deodorizing effect obtained by such a conventional device is shown in the column labeled "Ratio 1" in Table 1 below, and details are given in Comparative Example 1.

Further, Japanese Utility Model Publication No. 45-3995 describes a device for blowing odor-containing air around a flame outlet in a whirlpool, but this device does not have the spiral passage that the device of the present invention has.
The deodorizing effect obtained by this device is shown in Table 1 below with a ratio of 2.
The details are shown in Comparative Example 2.

Furthermore, Japanese Utility Model Application Publication No. 48-65071 describes a cyclone cylinder having a spiral projection on the inner wall, and the flame flows spirally on the inner wall of the cylinder in the spiral passage formed by the projection. The flame injection port is provided so as to advance, and the flue gas is formed so as to pass through the central passage of the cylinder, and the installation locations of the flame supply port and the flue gas supply port are similar to those of the present invention. It is clear from the description and drawings that this is different.

A device with such a structure is the flame introduction port 13 in the device of the present invention.
The deodorizing effect obtained by the device with such structure is equivalent to the structure in which the odor-containing air inlet 10' and the odor-containing air inlet 10' are replaced.
It is shown in the column of "ratio 3" in the table, and the details are described in Comparative Example 3.

Note 1) The speed shown indicates the blowing speed of odor-containing air. 2) The speed stated in column 1 is based on the blowing amount. Even at the speed shown above, an odor is detected in the exhaust gas. indicates that it was not done.

Also, the speed stated in column 1 of this fact is shown in Figure 3. obtained using the illustrated apparatus of the present invention. It is something.

3) In other comparative examples, up to the writing speed was odorless, but beyond this speed Indicates that an odor has been detected.

4) Ratio 1 column was described in Comparative Example 1 below. Obtained by the conventional apparatus shown in Figure 1. Show the test results.

5) Ratio 2 column was described in Comparative Example 2 below. The test results obtained by the device are shown.

The equipment used in this example is shown in Figure 3. Compared to the device of the present invention, there is a spiral passage in the combustion cylinder. Not prepared.

6) Ratio 3 column is written in the comparative example style below. Showing the test results obtained by the equipment, The structure of this device is more compact than the device of the present invention. The smelly air passes through the central passage and the flames pass through the roof. A structure designed to pass through a road. be.

As shown in the table below, the reason why the device of the present invention achieves a remarkable deodorizing effect is that the air containing excrement odor that is blown in tangentially is guided by the spiral band fins 8 and easily moves through the spiral path. Therefore, the time for the components of the excrement odor to come into contact with the high-temperature part of the outer periphery of the flame running in the central passage 9 becomes longer, and since the flame runs in the center of the cylinder, heat loss of the flame in the cylinder is prevented, and the bad odor is reduced. This is thought to be due to the formation of an environment suitable for decomposition, as a certain portion undergoes intense decomposition due to high heat.

FIG. 5 shows the manure truck used to obtain the manure smell to be used in the next example, and 1-5 shows the combustion tube 1 and burner 5 shown in FIG.
Or, as shown in Fig. 3, the deodorizing device obtained by assembling it on the stand 6, 12 is a vacuum pump, 12' is the blowing side of the vacuum pump,
12a is the O-connection pipe on the blowing side, and lla is the connecting pipe 1 on the blowing side.
This is a connection between the pipe end port (not shown) of the pipe 2a and the exhaust port (not shown) 7 of the tank 11.

12" is the discharge side of the pressure reducing pumps 1 and 2, 12b is a connecting pipe on the discharge side, and odor-containing air is supplied to the combustion cylinder 1 by connecting the pipe end 12C of the pipe 12b to the blowing pipe of the combustion cylinder 1. 3? is performed by connecting to 10 and driving the decompression pump 12.

12d is a connection pipe 12 on the blowing side for adjusting the blowing amount of odor-containing air.
a bypass pipe provided between a and the discharge side connecting pipe 12b,
Reference numeral 12e denotes an on-off valve provided in the bypass pipe, and the amount of air blown into the combustion cylinder 1 is adjusted by opening and closing the valve 12e.

13 is the Kumitori Town bending pipe, 14 is the ground, 15 is the pit,
h is the tank liquid level 11' and the pit liquid level 15'
There is a level difference between

In addition, in the figure, the front top of the tank 11 equipped with the deodorizing device 1-5 shows an example of the mounting position.

Example 1 Facilities and devices: (1) One excrement truck (Figure 5) 2-ton truck tank 11 1.8 m' Decompression pump 1 2 2 16 137 mm 6
0 0 Liquid depth in tank when using r/111iB Approx. 20
0m/Im within 1 t of tank liquid level 11'.

．． 9 Level difference h from liquid level 15' (2) Combustion tube (as shown in Figure 3) 3.2 m/m steel plate tube length 650 m//1 m Inner diameter 250 m//rrl Spiral band fin thickness 3.2 ml x Made of steel band with width w32r'r'1/r11 m Outer diameter 2r 250rI1//Im Spiral band fin pitch 40m//rrl x 10 (3)
Burner Corona Ready (GT11140 Corona Dengyosha) Nozzle 0.65 (Corona Dengyosha) Fuel White kerosene JIS No. 1 (fuel tank not shown) Combustion amount 2.4A/h Preparation: Spiral band fins 8 were provided in the cylinder The above-mentioned combustion chamber 1 and burner 5 are assembled on a stand 6 as shown in Figure 3 to form a deodorizing device, and this is attached to a manure truck as shown in Figure 5, and the discharge side connecting pipe 12b of the decompression pump 12 is installed. ' was connected to the tangential blow pipe 10 of the combustion tube 1 as follows.

Operation: Completely release the air supply starter 5f attached to the burner 5, press the start switch 5s and the ignition button 5p to form a flame in the combustion chamber, and then drive the vacuum pump 12 of the manure truck to remove the manure odor. Strong odor-containing air is blown in through the tangential blow pipe 10 and passed through the cylinder together with the flame, and the valve 12e of the bypass pipe is fully closed to reduce the amount of odor-containing air blown to 18°C, about 1 latm equivalent.
5 3 1,lmiyt? It was confirmed that the exhaust gas released into the atmosphere from the exhaust port 1b of the joint was completely odorless.

This olfactory test was conducted by three adults, and when the three felt no odor, it was considered odorless.

Discussion of results: It is recognized that the results of Example J are significantly different from those obtained by the comparative examples listed in Table I above, and the effects obtained by the device of the present invention are exceptional. It is understood that this is an excellent product.

Comparative Example 1 Equipment and equipment: (1) Manure tank Same as Example 1 (2) Combustion cylinder (as shown in Figure 1) 3.2 m/'rm thick steel plate cylinder length 700 mm.

Inner diameter 250 In/Length from dispersion plate 3a to outlet wall 2b 650n]/rr
l Dispersion hole φ10T'r1. /m×6 (3) Burner Same preparation as in Example J: Assemble the above-mentioned combustion cylinder 1 and burner 5, which do not have the spiral band fins 8 inside the cylinder, on the stand 6 as shown in Figure 1. A deodorizing device 1-5 is installed on the manure truck as shown in Figure 5, and the pipe end 12C of the discharge side connecting pipe of the decompression pump 12 is connected to the blowing pipe 3l of the combustion chamber 1, and the process is carried out as follows. Ta.

Operation 2: Completely release the air supply starter 5f attached to the burner 5, press the start switch 5s and the ignition button 5p to form a flame within the combustion node, and then operate the vacuum pump 12 of the manure truck to generate a strong manure odor. When odor-containing air was blown in from the dispersion chamber 3' and passed through the cylinder together with the flame, and the amount of air blown was adjusted by adjusting the valve 12e of the bypass pipe, it was released into the atmosphere from the exhaust port 1b' of the cylinder. The exhaust air has a blowing volume of approximately 16137 mm (i
It was confirmed that it was completely odorless up to 8°C, 1 atm equivalent value).

This olfactory test was conducted in the same manner as in Example 1.

result: The results are shown in Table 1 for comparison with Example 1.

Comparative example 2 Equipment and equipment: (1) Manure truck Same as Example 1 (2) Combustion tube (not shown) There is no spiral passage on the inner peripheral wall of the combustion tube.

Others are the same as those used in Example 1.

(3) Burner Same preparation as in Example 1: Same operation as in Example 1: When carried out in the same manner as in Example 1, the amount of exhaust gas released into the atmosphere was approximately 23L/7/22X (18℃ ,1
．． The odor of excrement and urine was felt from the time it exceeded the ATM equivalent value.

result: The results are shown in Table 1 for comparison with Example 1.

Comparative Example 3 Facilities and Equipment 2 (1) Manure truck Same as Example 1 (2) Combustion cylinder (not shown) Although the cylinder has a spiral passage on the inner surface, the blowing pipe for odor-containing air is connected to one side of the combustion cylinder. It has a structure in which each end opens at the center of the wall, and the flame introduction tube opens tangentially to the inner peripheral surface of the cylinder wall at the same end.

(3) Burner The same preparation as in Example 1: The same operation as in Example 1: The same procedure as in Example 1 was carried out, and the amount of exhaust gas released into the atmosphere was approximately 30.17 mm (18°C, 1A).
．． The odor of excrement and urine was felt from the time the temperature exceeded tm (converted value).

result: The results are shown in Table 1 for comparison with Example 1.

Example 2 Facilities and equipment: (1) Poultry excrement odor generating device (illustration omitted) and its piping A steel plate drum drum with a diameter of 600 m/X length of 800 m/m was placed in the can with approximately 1/1 of the can capacity. Place 4 amounts of chicken manure horizontally, open at the top of the side walls at both ends, use one as an outside air intake port and the other as an exhaust port, and use the exhaust D? A φ1" exhaust pipe was provided protrudingly to serve as an exhaust port connecting pipe, and the blowing side connecting pipe 12a of the decompression pump 12 attached to the manure truck of Example 1 was connected to the exhaust port connecting pipe.

Additionally, four 1 kW electric heaters were placed below the horizontal drum can as a drying heat source to generate chicken manure odor.

(2) Combustion cylinder (Fig. 3) Same as Example 1 (3) Burner Same preparation as Example 1: Decompression pump 12 connected to the exhaust port of the manure truck tank used in Example 1 Proceed in the same manner except that the pipe end of the suction side connecting pipe 12a is removed from the tank and connected to the exhaust port connection pipe of the drum can for generating chicken manure odor, and the air containing the chicken manure odor generated from the drum can is transferred to the vacuum pump. 12 and connected to the combustion cylinder at the front top of the manure truck tank.

Operation: Turn on the electric heater of the above chicken manure odor generating device to heat the chicken manure in the drum can, and when the discharge of chicken manure odor is detected from the outside air intake port of the drum can, the same operation as in Example 1 is carried out. Then, the decompression pump 12 is driven to fully open the bypass 12l, and the foul-smelling air that has passed through the drum can is blown into the tangential blow pipe 10 to create a flame. When the exhaust gas was passed through the combustion tube 1, it was confirmed that the exhaust gas was completely odorless.

The seven exhaust odor tests were conducted in the same manner as in the previous example.

Also, the foul-smelling air blown into combustion chamber 1 was 20 0 1 J/m.
vl (18°C, latm equivalent).

[Brief explanation of drawings]

Figures 1 and 2 show an example of a conventional combustion deodorizing device.
The figure is a partially cutaway front view, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, and FIGS. Front view, Figure 4 is B-
A sectional view taken along the line B, and FIG. 5 is a front schematic diagram of the manure truck equipped with a deodorizing device. In addition, 1 is a combustion tube, 2 is a cylindrical part, 5 is a burner, 6 is a fixed stand, 8 is a spiral strip fin, 8a is a spiral passage, 9 is a central passage,
10 is a tangential blowing pipe, and 11 is a manure tank.

Claims (1)

[Claims] i The combustion cylinder is composed of a combustion mi and a burner 5, and the combustion cylinder has a flame introduction pipe protruding from the center of the end wall 2a at one end of the cylindrical part 2 to open a flame introduction port 1a', and an exhaust pipe at the center of the wall 2b at the other end. A blowing pipe 10 for odor-containing air is provided on the cylindrical wall where the flame is introduced so as to open tangentially to the inner circumferential surface 2'a of the wall, and the cylindrical portion 2 is opened. A spiral strip fin 8 having a width W smaller than the circumferential radius r of the part is projected from the inner circumferential surface 2' of the part, and a spiral passage 8a is formed between the pitches of the fin, and thus the passage 8a is surrounded by the passage. A central flame passage 9 is formed which communicates from the flame introduction port 1a' to the exhaust port 1b', and the flame injection pipe 5b of the burner 5 faces into the flame introduction pipe 1a so that the flame flows through the central passage 9. A combustion device for deodorizing and discharging air containing excrement odor, which is formed so that the odor-containing air passes through and moves forward while being guided by the spiral passage 8a.