JP3649783B2 - 厨 芥 Processing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soot processing machine. More specifically, it is a waste disposal device that treats waste such as garbage generated from ordinary household or business waste, and efficiently treats odorous gas including flammable gas generated when heat treatment is performed on the waste. The present invention also relates to a soot treating machine having a catalyst deodorizing means for deodorizing safely.
[0002]
[Prior art]
Conventionally, various types of soot processing machines have been proposed for deodorizing odor gas generated when drying soot with a catalyst (for example, see Japanese Patent Laid-Open No. 5-96271). This soot processing machine includes a soot drying chamber having a stirring means for stirring soot and a discharge port for discharging the soot after processing, a deodorizing device provided with a catalyst and a heater, a condensing device for treating water vapor during soot drying, And a blower. Further, the soot drying chamber, the condensing device, the air blowing device, and the deodorizing device are sequentially communicated with each other through a circulation path.
[0003]
When the soot treatment is performed using such a conventional soot treating apparatus, the soot is first put into the soot drying chamber and stirred by the stirring means. At the same time, it is heated and dried by hot air obtained by the heater of the deodorizing device and the blower. Odor gas and water vapor generated at this time are processed while hot air circulates between the circulation device and the deodorization device and between the deodorization device and the soot drying chamber.
[0004]
[Problems to be solved by the invention]
However, such conventional soot processing devices are basically not provided with safety measures against the introduction of flammable hazardous materials.
[0005]
That is, the heater temperature of the deodorizing device in the conventional soot treatment machine varies depending on the type of catalyst and the heating method (method for heating the catalyst itself, method for heating the odor gas itself), etc., but is usually set at 400 ° C. or higher. The This temperature is dangerous for the combustible gas and is the ignition point of the combustible gas in a certain range of concentration (explosion range).
[0006]
For example, the ethanol gas contained in sake and the like has an explosion range of 3.3 to 19% by volume and an ignition point of 417 ° C. (“Gas Safety Handling Data Book, Co-edited by Nippon Oxygen Co., Ltd. and Mathison Gas Products, Maruzen Co., Ltd.) Publication, p.30 ").
[0007]
In other words, if combustible gas within the concentration range of the explosion passes through a heater or catalyst heated to 400 ° C. or higher, explosion or ignition occurs, and the resin or rubber tube in the path between the drying chamber and the catalyst burns. A problem occurs. Even if there is no burning material in the path between the drying chamber and the catalyst, the gas expands due to heat, and the lid of the processor may be damaged due to pressure.
[0008]
The present invention solves the above-mentioned problems of the prior art, and provides a small-sized soot treating machine equipped with a catalyst deodorizing means that can efficiently and safely deodorize odorous gas containing flammable gas generated by soot treatment. For the purpose.
[0009]
Furthermore, the present invention provides a small soot disposer that can improve the safety of the apparatus by automatically stopping the soot treatment when the odor gas generated by the soot treatment includes a combustible gas. The purpose is to do.
[0010]
[Means for Solving the Problems]
The soot treating machine of the first invention (invention 1) is a soot treating machine provided with a processing chamber for treating soot and a catalyst deodorizing means having a heating means for deodorizing odorous gas generated from the processing chamber. In addition, an upstream side of the catalyst deodorizing means is provided with a prevention filter for preventing a back flow of flame accompanying an explosion phenomenon caused by a combustible gas.
[0011]
Moreover, it is preferable that the prevention filter has a plate shape having a plurality of through holes.
[0012]
It is preferable that the depth of the through hole of the prevention filter is not less than twice the diameter of the through hole.
[0013]
The diameter of the through hole is preferably in the range of 2.0 to 3.0 mm.
[0014]
It is preferable that a temperature sensor is provided on the downstream side of the prevention filter, and the soot treatment is automatically stopped when the temperature measured by the temperature sensor exceeds a predetermined temperature.
[0015]
It is preferable to further comprise an alarm means linked to the temperature sensor.
[0016]
The soot treating machine of the second invention (invention 6) is a soot treating machine provided with a treatment chamber for treating soot and a catalyst deodorizing means having a heating means for deodorizing odorous gas generated from the treating chamber. The catalyst deodorizing means Inside Upstream of When the pressure change due to explosion is detected, the valve opens to relieve the pressure in the catalyst deodorizing means A pressure regulating valve is provided.
[0017]
It is preferable that an opening detecting means for detecting the opening of the pressure regulating valve is further provided, and when the opening detecting means detects the opening of the pressure regulating valve, the soot processing is automatically stopped.
[0018]
It is preferable to further comprise an alarm means linked to the opening detection means.
[0019]
The soot treating machine of the third invention (invention 8) is a soot treating machine provided with a treatment chamber for treating soot and a catalyst deodorizing means having a heating means for deodorizing odorous gas generated from the treating chamber. The catalyst deodorizing means Inside In the upstream side of the filter, there is a backflow prevention filter for flames caused by explosions caused by combustible gases. When the pressure change due to explosion is detected, the valve opens to relieve the pressure in the catalyst deodorizing means And a pressure regulating valve, respectively.
[0020]
A soot treating machine of a fourth invention (invention 10) is a soot treating machine having a treatment chamber for treating soot and a catalyst deodorizing means for deodorizing odor gas generated from the treatment chamber. A sensor for detecting at least a combustible gas is provided in the room, and the soot processing is automatically stopped when the concentration detected by the sensor exceeds a predetermined concentration. .
[0022]
DETAILED DESCRIPTION OF THE INVENTION
In the first invention (invention 1), since the prevention filter for preventing the reverse flow of the flame accompanying the explosion phenomenon due to the combustible gas is configured on the upstream side of the catalyst deodorizing means, the odor gas is efficiently deodorized as in the conventional case. Even if the combustible gas flows through the catalyst layer or the heater and the back flow of the flame accompanying the explosion phenomenon occurs, it is blocked by the prevention filter.
[0023]
The prevention filter preferably has a plate shape having a plurality of through holes, and is formed of a metal material such as stainless steel.
[0024]
The diameter and thickness of the through hole of the prevention filter are preferably designed so that the following equation holds, with emphasis on the fact that the flame does not reach the upstream side of the filter.
[0025]
Through hole depth ≧ n × through hole diameter (2 ≦ n ≦ 3)
Usually, it is preferable that the diameter of the through hole is designed to be about 2.0 to 3.2 mm.
[0026]
In addition, when the temperature sensor provided on the downstream side of the prevention filter detects a temperature exceeding a predetermined temperature at the time of the explosion phenomenon, the dredging process is automatically stopped for safety, and it is applied to the user. Since the alarm regarding the occurrence of the explosion phenomenon is issued by various alarm means such as a lamp and / or a buzzer, it is preferable because the alarm can be safely processed.
[0027]
In the second invention (invention 6), a pressure adjusting valve capable of adjusting the pressure in the gas flow path is provided in front of the heater for heating the odor gas of the catalyst deodorizing means. Even if the pressure inside the catalyst deodorizing means increases due to gas expansion due to the backflow of the flame, the pressure is adjusted to be equal to or lower than a predetermined pressure by such a pressure regulating valve, so that damage to the processor due to pressure can be avoided.
[0028]
As an open detection means for detecting the opening of the pressure adjustment valve in the vicinity of the pressure adjustment valve of the catalyst deodorizing means, if a photo sensor is provided, if the pressure adjustment valve is activated, the sensor is sensed, Since the processor automatically stops and notifies the warning lamp and the buzzer, it is preferable because the processing can be safely performed.
[0029]
Further, as in the third invention (Embodiment 8), by providing both the flame backflow prevention filter and the pressure regulating valve, it is possible to perform the soot treatment more safely.
[0030]
In the fourth invention (invention 10), a sensor for detecting at least a flammable gas is provided in the processing chamber, and when the concentration detected by the sensor exceeds a predetermined level, automatic soot processing is performed. Since it is configured to stop, the dredging process can be performed safely.
[0031]
In the fifth invention (invention 11), a sensor for detecting at least a flammable gas is provided in the processing chamber, and when the concentration detected by the sensor exceeds a predetermined level, the inside of the processing chamber Since the forced air flow rate is configured to increase, the gas concentration is reduced and the soot treatment can be performed safely.
[0032]
Next, the soot treating machine of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram for explaining the configuration of an embodiment of a soot treating machine according to the present invention, FIG. 2 is a cross-sectional explanatory view of the soot treating machine of FIG. 1, and FIG. FIG. 4 is a cross-sectional explanatory view of a catalyst deodorizing means having a pressure regulating valve which is another embodiment of the soot treating apparatus of the present invention, and FIG. FIG. 6 is a block diagram showing a system for controlling the operation of the dredge processing machine of the present invention, FIG. 7 is a flowchart showing an emergency stop operation using the system of FIG. 6, and FIG. FIG. 9 is a graph showing the change in the odor level detected by the odor sensor of FIG. 1 as the processing time elapses.
[0033]
In FIG. 1, reference numeral 1 denotes a drying chamber for heat-drying soot as a processing chamber, 2 a condensation means for condensing water vapor in the odor gas generated in the drying chamber 1, 3 a condensation for storing moisture condensed by the condensation means 2 Water tank 4 is a blowing means, 5 is a catalyst deodorizing means for deodorizing odor components generated from the soot, 6 is a pipe connecting the drying chamber 1 and the condensing means 2, and 7 is a condensing means 2 and a blowing means 4. A pipe for communication, 8 is a pipe for connecting the blowing means 4 and the catalyst deodorizing means 5, and 9 is a discharge pipe for discharging the deodorized processing gas.
[0034]
The drying chamber 1 is formed in an airtight manner, and is provided with an air intake port for taking outside air into the drying chamber 1. A gas composed of outside air sucked into the drying chamber 1 and water vapor and odor components generated in the drying chamber is sent to the condensing means 2 through the pipe 6, where the water vapor is condensed, and the condensed water enters the condensed water tank 3. Accumulated. On the other hand, the odor gas from which the water vapor has been removed is sucked into the blowing means 4 through the pipe 7 and sent to the catalyst deodorizing means 5 through the pipe 8, where it is deodorized and finally discharged to the outside from the discharge pipe 9. Is done.
[0035]
As a method for heating and drying the soot in the drying chamber 1, a temperature drying method, a lower heating method in which the soot is heated with a heater from the lower portion, or the like can be employed. The heating temperature is preferably about 100 to 120 ° C. in consideration of generation of toxic gas or shortening of drying time. Further, the air directly introduced into the drying chamber 1 is useful for shortening the drying time of the soot when the absolute humidity is low.
[0036]
Next, the configuration of the soot processor shown in FIG. 1 will be described more specifically. As shown in FIG. 2, the drying chamber 1 for drying the soot is formed in the processor main body 10 and has a space for accommodating the waste container 11 containing the soot, and the upper part is covered with a lid 12. Airtightness is maintained by the packing 30 attached to the lid 12. The garbage container 11 is configured to be detachable from the drying chamber 1 and is provided at the bottom of the stirring blade 13. The stirring blade 13 is connected to a driven shaft 14 penetrating the bottom of the drying chamber 1. The stirring blade 13 is intermittently driven by the drive motor 15, and the forward rotation and the reversal are alternately repeated to stir the soot in the garbage container 11 so that the temperature of the soot is uniform, thereby drying efficiently. The driven shaft 14 and the drive motor 15 are connected via a speed reducer 16 and a coupling mechanism 17 connected to the drive motor 15.
[0037]
As the material of the garbage container 11, it is preferable to employ a metal material such as stainless steel which is not easily corroded or steel coated with a fluororesin or the like so as not to stick carbides of straw.
[0038]
At the bottom of the drying chamber 1, a sheathed heater 18 in which a heating element is embedded and a heat radiating surface is formed in a planar shape is provided, and the bottom heating method is used to widely heat the bottom surface of the garbage container 11. Therefore, the soot can be efficiently heated and dried efficiently with low power consumption. The sheath heater 18 controls the bottom temperature of the trash container 11 to a temperature in the range of 100 to 120 ° C., usually about 105 ° C. The higher the heating temperature, the shorter the drying time. However, when the heating temperature is too high, soot is easily carbonized. Also, even if plastics such as vinyl chloride resin and nylon are mixed in the trash container 11, gasification will not occur at around 105 ° C. Therefore, generation of chlorine-containing gas due to decomposition of vinyl chloride resin and harmful effects due to decomposition of other plastics There is no gas generation.
[0039]
A heat insulating material 20 is provided on the bottom and inside of the side wall of the drying chamber 1 so as to cover the garbage container 11 and the sheathed heater 18. The heat insulating material 20 reduces heat dissipation loss.
[0040]
An air intake port 21 communicating with the drying chamber 1 is provided in the central portion of the lid 12, and a check valve 21 a is provided in the air intake port 21 so that outside air can be sucked without leaking odor gas. An exhaust port 22 is provided on the side wall of the drying chamber 1, and gas generated in the drying chamber 1 is sent to the condensing means 2 through piping and a condenser inlet 23. If the check valve 21a is not provided, the air intake 21 is provided with a large amount of gas when the soot is agitated and exceeds the capacity of the blowing means 4, and if the capacity of the blowing means 4 is exceeded, the air intake 21 is exposed to the outside. This is because odor may leak. By providing the check valve 21a, the capacity of the blowing means can be reduced.
[0041]
The reason why the outside air is directly sucked into the drying chamber 1 is that the outside air has a low absolute humidity, thereby increasing the drying speed of the soot.
[0042]
The condensing means 2 includes a heat exchanger 24, a drain pipe 25, and a propeller fan 26 that circulates cooling air. Further, deodorizers 44a and 44b (see FIG. 5) divided into two layers along the direction perpendicular to the paper surface of FIG. The heat exchanger 24 may be an appropriate one such as a box shape or a serpentine tube, and is made of an aluminum alloy, a copper alloy, or the like having good thermal conductivity and corrosion resistance. A drain pipe 25 is connected to the lower end of the heat exchanger 24, and condensate such as water vapor in the gas is collected by a funnel-shaped condensed water collecting section 43 in the drain pipe 25, and only one deodorizing agent 44b is selectively selected. It has come to pass. The odor of the condensed water that has passed through is considerably reduced and collected in the condensed water tank 3. The odor gas passes through one of the deodorizers 44a and 44b divided into two layers as appropriate, similarly to the condensed water. The odor of the gas that has passed through the deodorizers 44a and 44b is almost eliminated, and the remaining odor is completely eliminated by the subsequent catalyst deodorizing means. Since the odor gas is almost odorless by the condensing means 2, the burden on the catalyst deodorization can be reduced. The deodorizers 44a and 44b are exchangeable in a cartridge type. The deodorizers 44a and 44b are fixed to the inner surface of the drain pipe 25 with a fixing plate 45 and a sealing material 46, and odor leaks and the like at this portion are in a negative pressure state inside the drain pipe 25 by the blowing means 4. No problem.
[0043]
Effective deodorizers 44a and 44b are activated carbon and molecular sieves using physical adsorption, and iron phthalocyanine compounds or copper oxides using chemical reactions.
[0044]
Since the odor is almost removed by the deodorizer in the condenser as described above, the catalyst amount of the catalyst deodorizing means 5 can be reduced. Therefore, it leads to cost reduction. Moreover, since the odor of the waste water is removed by this deodorant, there is no discomfort when the waste water is discarded. Further, the effect obtained by separating the deodorizing means by the deodorizer into two layers and dividing one for odor gas and the other for odor gas and drainage is as shown below. If it is not divided into two layers, the whole becomes wet by the drainage, and the odor gas is difficult to pass. As a result, the pressure before the deodorizing layer is increased, the odor gas pushes out the drainage, and the drainage is not sufficiently deodorized. Then, if it divides into two layers as mentioned above, since odor gas can pass another layer, drainage is fully deodorized by another deodorizing layer.
[0045]
Furthermore, since the condenser having the deodorizing agent effectively reduces the gas concentration even when flammable gas such as ethanol gas is generated by the soot treatment, the explosion phenomenon can be prevented in advance. Specifically, if the vodka having an alcohol content of 50 degrees is contained in the soot to be processed about 100 ml, first, the concentration is reduced to about half by the original condensing action of the condenser. For example, while the concentration of ethanol gas is 6.3% by volume inside the processing vessel, the concentration after passing through the condenser is reduced to about 3.1% by volume.
[0046]
Furthermore, since the remaining 90% or more of the flammable gas is captured by the deodorizing action of the deodorizing filter inside the condenser (particularly the filter side through which only the odor gas passes), the final concentration is about 0.3% by volume. Can be reduced to: Therefore, the explosion range is significantly below 3.3 to 19% by volume, and no explosion phenomenon occurs.
[0047]
The condensed water tank 3 is detachably provided at the bottom of the main body 10, and a tank inlet 3 a is formed at the top of one end thereof. The condensed water that has passed through the drain pipe 25 accumulates in the condensed water tank 3 from the tank inlet 3a. Further, the gas from which water vapor or the like has been removed through the drain pipe 25 is sucked through the pipe 7 by the blower fan 4 as the blower means and sent to the catalyst deodorizing means 5.
[0048]
Further, the blower fan 4 can constantly blow gas, and the blower capacity is set to be larger than the average amount of water vapor generated from the soot per unit time when treating soot. This is because if the air volume is increased too much, the temperature in the drying chamber 1 may drop, the water in the condensing means 2 cannot be recovered efficiently, or the capacity of the catalyst in the catalyst deodorizing means 5 may be reduced. It is. The blowing fan 4 and the cooling propeller fan 26 are driven by a cooling and blowing motor 27.
[0049]
As shown in FIG. 3, the catalyst deodorizing means 5 is formed so that a catalyst layer 31, a nichrome heater 32 for heating a gas, and a flame backflow prevention filter 33 due to an explosion phenomenon are formed as one unit. Has been. Further, a temperature sensor 34 is provided on the nichrome heater 32 side of the prevention filter 33. As shown in FIG. 1, the odor gas sucked from the condensed water tank 3 through the pipes 7 and 8 communicating with the condensing means 2 through the blower fan 4 first passes through the through hole 33a of the prevention filter 33. Then, it is heated by the nichrome heater 32 and oxidatively decomposed into the odorless gas in the catalyst layer 31. The temperature of the odor gas after passing through the nichrome heater 32 is optimally 400 to 500 ° C., and the odor gas can be efficiently deodorized. As the catalyst layer 31, an oxidation catalyst such as platinum, platinum-palladium, or nickel can be used.
[0050]
If the catalyst layer 31 is a cylinder whose interior is partitioned into a plurality of chambers by an inner wall in the axial direction, the shape of each small chamber can be variously changed. For example, a honeycomb structure may be formed by forming a plurality of holes having a hexagonal cross section.
[0051]
As the prevention filter 33, for example, a filter having a plate shape having a plurality of through holes is used in order to effectively prevent the backflow of the flame accompanying the explosion phenomenon without inhibiting the flow of the odor gas.
[0052]
For example, the prevention filter 33 shown in FIGS. 3A to 3C is a metal disc such as copper, stainless steel, or Inconel having a plurality of through holes 33a.
[0053]
The diameter and thickness of the through hole of the prevention filter are preferably designed so that the following equation holds, with emphasis on the fact that the flame does not reach the upstream side of the filter.
[0054]
The depth of the through hole 33a ≧ the diameter of the through hole (however, 2 ≦ n ≦ 3)
Usually, it is preferable that the diameter of the through hole 33a is designed to be about 2.0 to 3.2 mm. In the case of such a diameter, it is preferable that the depth of the through hole 33a is designed so as to exceed 4.0 to 9.6 mm from the previous formula. More specifically, if the diameter of the through hole is 2.0 mm, the depth of the hole may be 4.0 to 6.0 mm or more, preferably about 10 mm.
[0055]
In addition, the depth of a through-hole here means the depth of the right cylindrical part of a through-hole. That is, if the shape of the entire through hole exhibits a right cylindrical shape, it refers to the depth of the entire through hole. On the other hand, when drilling a through hole by NC machining or the like, the through hole 33a having a tapered edge shown in FIG. 3C is obtained by deburring the front and rear edges of the through hole. In this case, the depth of the through hole 33a indicates the depth D of the right cylindrical portion.
[0056]
When the odor gas contains a combustible gas that has reached the explosion range concentration, such as ethanol gas (explosion range 3.3 to 19% by volume, ignition point 423 ° C.), the ethanol gas is transferred from the nichrome heater 32 and the catalyst layer 31. Ignites and explodes.
[0057]
The reverse flow of the flame accompanying the explosion phenomenon causes the blower fan 4 and other paths to spread, but in the present invention, since the prevention filter 33 for preventing the reverse flow of the flame accompanying the explosion phenomenon is provided, Fire spread to others is prevented. Further, since the temperature sensor 34 is attached to the nichrome heater side of the explosion phenomenon prevention filter 33, if the temperature becomes 100 ° C. or more due to the influence of the explosion phenomenon, a microcomputer (microcomputer) connected to the temperature sensor (not shown). Etc.), the processor is urgently stopped, and the user is informed of the abnormality with an alarm buzzer or a warning lamp (not shown), so that the soot can always be processed safely.
[0058]
In the above-described embodiment, the prevention filter is provided to prevent the backflow of the flame accompanying the explosion phenomenon, but other means for preventing the backflow of various flames may be employed.
[0059]
The catalyst deodorizing means 5 shown in FIG. 4 includes a catalyst layer 31, a nichrome heater 32 for heating gas, and a pressure regulating valve 35 in front of the heater 32 as a single unit. Furthermore, a photo sensor 36 for constantly monitoring the operating state of the pressure regulating valve 35 is provided outside the unit. The odor gas that has passed through the blower fan 4 is oxidatively decomposed into odorless gas by the catalyst deodorizing means 5 as in the above-described embodiment. In addition, although not shown in figure, components other than the catalyst deodorizing means 5 are common in the said Example.
[0060]
If the odor gas contains a combustible gas that has reached the explosive range concentration, such as butane gas (explosion range 1.8 to 8.4 vol%, ignition point 430 ° C.), the butane gas is ignited by the nichrome heater 32 and the catalyst layer 31. Then, an explosion phenomenon occurs. Although this phenomenon spreads the blower fan 4 and other passages or breaks them with pressure, a pressure regulating valve 35 is provided in the present invention. Therefore, the gas expansion due to the explosion phenomenon is mitigated here, and the gas concentration is reduced, so that the back flow of the flame is prevented. Further, the pressure adjustment valve 35 is always monitored by the photo sensor 36. Therefore, when the pressure regulating valve 35 senses a pressure change and the valve is opened, the light emitted from the photosensor is reflected differently from the normal light and is not received, thereby sensing that the valve is opened. At this time, the processing machine is urgently stopped by a microcomputer (not shown) connected to the photo sensor 36, and the user is notified of the abnormality by an alarm buzzer or a warning lamp. Can do.
[0061]
In the above two embodiments, the catalyst deodorizing means has been described with reference to an example in which only one of the prevention filter for preventing the back flow of the flame or the pressure regulating valve is provided. It is not limited to this, You may comprise both the said prevention filter and a pressure regulation valve. In that case, even if an explosion occurs, the prevention filter prevents the back flow of the flame and the pressure regulating valve alleviates the expansion of the gas and also reduces the gas concentration. Can do.
[0062]
Furthermore, if the odor sensor 51 capable of detecting at least the flammable gas is installed in the lid 12 in the upper part of the drying chamber 1 in FIG. 2, emergency stop or forced ventilation can be performed by the means shown in FIGS. it can. In general, when a family of four generates about 700 g of raw garbage per day, the level change of the odor sensor 51 is indicated by the dotted line in FIG. Indicated. However, when garbage containing flammable gas is introduced, the level change of the odor sensor 51 is indicated by a solid line in FIG. 9, and there is a considerable level difference. And the detection level by the odor sensor 51 was 4.5V when it was 3.3 volume% of the explosion dangerous density | concentration of ethanol. Therefore, the boundary between safe and unsafe at the odor level was set to 4.4V.
[0063]
The soot processing machine having the odor sensor 51 is controlled by a block diagram as shown in FIG. 6, and a flowchart for emergency stop is shown in FIG. Moreover, the flowchart which increases a forced ventilation flow volume and avoids a problem is shown in FIG. The amount of increase in the forced draft flow rate may be at least twice the normal flow rate. In terms of concentration, when about 50 ml of sake (50% ethanol) is added, the ethanol concentration in the drying chamber 1 is about 5% by volume at a normal flow rate of 5 liters / minute, and is sufficiently within the explosion range. However, if the flow rate is doubled, for example, the ethanol concentration in the drying chamber 1 is halved and is outside the explosion range, so danger can be avoided. At this time, the temperature of the drying heater and the catalyst heater is always controlled so as to be the optimum temperature according to the flow rate.
[0064]
The emergency stop operation shown in FIG. 7 and / or the forced ventilation flow rate increase operation shown in FIG. 8 are collectively controlled by the microcomputer shown in FIG.
[0065]
In the above description, the present invention has been described for another soot processor that heats and drys soot. However, the present invention can also be applied to a soot processor that treats soot with microorganisms.
[0066]
【The invention's effect】
According to the first invention (invention 1), since the prevention filter for preventing the back flow of the flame is configured upstream of the catalyst deodorizing means, if the odor gas contains a flammable gas, the flammable gas Even if an explosion occurs, it can be blocked by this prevention filter, and problems such as fire spread and explosion do not occur in the processing machine itself. Therefore, it is possible to safely perform the soot processing.
[0067]
In addition, when an explosion due to combustible gas occurs, it can be blocked by a prevention filter. However, if a temperature sensor is installed on the nichrome heater side of the prevention filter, the area near the temperature sensor at the time of the explosion occurrence can be prevented. When the temperature becomes high, the sensor senses and the processor can be stopped urgently. In addition, since this emergency stop can be notified to the user by a buzzer or a warning lamp, the dredging process can always be performed safely.
[0068]
According to the second invention (invention 6), since the pressure regulating valve is constructed upstream of the catalyst deodorizing means, if the odor gas contains a combustible gas, an explosion occurs and the gas is thermally expanded. Even if this occurs, the pressure regulating valve operates to relieve the pressure and reduce the gas concentration. Therefore, no explosion or the like of the processing machine itself occurs, and the soot processing can always be performed safely.
[0069]
If a photosensor is installed for the pressure regulating valve, the sensor can detect a pressure change due to an explosion phenomenon in the catalyst deodorizing means, and the processor can be stopped urgently. In addition, since this emergency stop can be notified to the user by a buzzer or a warning lamp, the dredging process can always be performed safely.
[0070]
Further, as in the third invention (Embodiment 8), by providing both the flame backflow prevention filter and the pressure regulating valve, it is possible to perform the soot treatment more safely.
[0071]
In the fourth invention (invention 10), a sensor for detecting at least a flammable gas is provided in the processing chamber, and when the concentration detected by the sensor exceeds a predetermined level, automatic soot processing is performed. Since it is configured to stop, the dredging process can be performed safely.
[0072]
In the fifth invention (invention 11), a sensor for detecting at least a flammable gas is provided in the processing chamber, and when the concentration detected by the sensor exceeds a predetermined level, the inside of the processing chamber Since the forced air flow rate is configured to increase, the dredging process can be performed safely.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating the configuration of an embodiment of a soot processing machine according to the present invention.
FIG. 2 is a cross-sectional explanatory view of the soot treating machine of FIG.
FIG. 3 is an enlarged cross-sectional explanatory view of a main part of the catalyst deodorizing means of FIG.
FIG. 4 is a cross-sectional explanatory view of catalyst deodorizing means having a pressure regulating valve which is another embodiment of the soot treating machine of the present invention.
5 is a partial cross-sectional view of a drain pipe showing a condensed water deodorizing part and a deodorizing agent in FIG. 1. FIG.
FIG. 6 is a block diagram showing a system for performing operation control of the soot processor according to the present invention.
7 is a flowchart showing an emergency stop operation using the system of FIG.
FIG. 8 is a flowchart showing a forced ventilation flow rate increasing operation using the system of FIG.
FIG. 9 is a graph showing changes in odor level detected by the odor sensor of FIG. 1 along with the passage of processing time.
[Explanation of symbols]
1 Drying room
2 Condensing means
3 Condensate tank
4 ventilation means
5 Catalyst deodorization means
31 catalyst layer
32 Nichrome heater
33 Prevention filter
33a Through hole
34 Temperature sensor
35 Pressure regulating valve
36 Photosensor

Claims (10)

  A soot treating machine comprising a treatment chamber for treating soot, and a catalyst deodorizing means having a heating means for deodorizing odorous gas generated from the treatment chamber, wherein a combustible gas is disposed upstream of the catalyst deodorizing means. A soot treating machine provided with a prevention filter for preventing a back flow of flame due to an explosion phenomenon caused by the above.   The soot processing machine according to claim 1, wherein the prevention filter has a plate shape having a plurality of through holes.   The soot treating machine according to claim 2, wherein the depth of the through hole of the prevention filter is at least twice the diameter of the through hole.   The soot processing machine according to claim 3, wherein a diameter of the through hole is in a range of 2.0 to 3.2 mm.   The soot processing machine according to claim 1, wherein a temperature sensor is provided on the downstream side of the prevention filter, and when the temperature measured by the temperature sensor exceeds a predetermined temperature, the soot processing is automatically stopped.   A soot treating machine comprising a treatment chamber for treating soot, and a catalyst deodorizing means having a heating means for deodorizing odorous gas generated from the processing chamber, wherein an upstream side of the catalyst deodorizing means is A soot treating machine characterized in that a valve is opened by detecting a pressure change, and a pressure regulating valve is provided for relaxing the pressure in the catalyst deodorizing means.   The soot processing according to claim 6, further comprising an opening detecting means for detecting the opening of the pressure regulating valve, wherein when the opening detecting means detects the opening of the pressure regulating valve, the soot processing is automatically stopped. Machine.   A soot treatment machine comprising a treatment chamber for treating soot, and a catalyst deodorizing means having a heating means for deodorizing odorous gas generated from the processing chamber, and is combustible upstream of the catalyst deodorizing means. A filter for preventing a backflow of a flame accompanying an explosion phenomenon due to gas, and a pressure adjusting valve for opening a valve upon detecting a pressure change due to the explosion and relieving the pressure in the catalyst deodorizing means are provided.厨 芥 Processing machine.   The dredge processing machine according to claim 5 or 7, further comprising a warning means linked to the temperature sensor or the opening detection means. A soot processing machine having a processing chamber for processing soot and a catalyst deodorizing means for deodorizing odorous gas generated from the processing chamber, wherein a sensor for detecting at least combustible gas is provided in the processing chamber. The cocoon processing machine is configured to automatically stop the cocoon processing when the concentration detected by the sensor exceeds a predetermined concentration.

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