JP2011194276A - Apparatus for degrading material to be treated - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for degrading material to be treated which can keep a prescribed temperature environment in the inside of a treatment chamber by using a high-temperature gas heat after deodorization treatment and is optimum for efficiently and stably producing a soil activator.SOLUTION: The apparatus for degrading material to be treated performs degradation of material to be treated by means of aerobic microorganisms. The apparatus for degrading material to be treated includes: a treatment tank 11 having the treatment chamber 12 in which the material 50 to be treated is stored; an agitation means 20 for agitating the material 50 to be treated in the treatment tank 11; an air supply means 34 for feeding air of a prescribed temperature into the treatment chamber; a cleaning device 31 which performs deodorization by heating odor generated by degradation of the material 50 to be treated; and a jacket 25 which is disposed on at least the bottom part of the treatment tank 11 and is configured such that the gas deodorized by the cleaning device 31 is supplied thereinto.

Description

  The present invention relates to an apparatus for decomposing an object to be treated that is optimal for producing a soil activator.

  2. Description of the Related Art In recent years, an apparatus using aerobic microorganisms has been proposed as an apparatus for decomposing an object to be processed for processing waste (an object to be processed) such as garbage (for example, see Patent Document 1). Such a decomposition processing apparatus includes a processing tank provided with a processing chamber, and a stirring means for stirring the object to be processed in the processing chamber. In addition, soil fungi are used as aerobic microorganisms, and rice husks, shredder dust, rice bran, and the like are used as soil fungus bed material.

  And by putting a to-be-processed object in a processing chamber, this to-be-processed object is decomposed | disassembled by soil fungi.

JP 2009-91523 A

  The apparatus for decomposing an object to be processed described in Patent Document 1 has an advantage that a soil activator can be manufactured by decomposing the object to be processed such as garbage with soil bacteria. However, in order to activate soil bacteria and efficiently decompose the object to be treated, it is necessary to supply warm air into the processing chamber and maintain the processing chamber in a predetermined temperature atmosphere.

  Moreover, organic malodor (odor gas) is generated when the object to be treated is decomposed. For this reason, deodorizing treatment is performed by heating the odor gas to a predetermined temperature with a heating device and oxidizing and burning it by the action of the catalyst. In the deodorization treatment of the odor gas, the odor gas needs to be heated to a temperature approximately twice or more than the temperature at which the soil fungi are activated. Therefore, it has been desired to effectively use the gas heat after the deodorization treatment.

  The first object of the present invention is to maintain the processing chamber in a predetermined temperature atmosphere using high-temperature gas heat after the deodorization treatment, and to produce the soil activator efficiently and stably. To do.

  A second object is to reduce the running cost of the decomposition processing apparatus.

  The solution provided by the present invention is an apparatus for decomposing an object to be processed that decomposes the object to be processed by aerobic microorganisms, a processing tank having a processing chamber in which the object to be processed is accommodated, and the processing tank A stirring means for stirring the object to be processed, an air supply means for sending air at a predetermined temperature into the processing chamber, a cleaning device for heating and deodorizing the odor generated by the decomposition of the object to be processed, And a jacket that is provided at least at the bottom of the treatment tank and that is supplied with the gas deodorized by the cleaning device.

  The apparatus for decomposing an object to be processed according to the present invention supplies the jacket with the high-temperature gas of the object to be processed that has been deodorized by the cleaning device. As a result, it is possible to keep the treatment tank warm by the heat of the jacket, maintain the treatment chamber in a predetermined temperature atmosphere that is optimal for the decomposition treatment of the object to be treated, and produce the soil activator efficiently and stably. it can.

  In the decomposition treatment apparatus for the object to be processed, the apparatus includes a heat exchanger for exchanging heat between the odor gas discharged from the treatment tank and the gas deodorized by the cleaning apparatus, and is preheated in the heat exchanger. It is configured to send the odorous gas to the cleaning device.

  The decomposition treatment apparatus for the object to be processed according to the present invention heats the odor gas in advance with a heat exchanger, and then heats the odor gas preliminarily heated in the cleaning apparatus for deodorization treatment. It is possible to reduce the running cost of the decomposition processing apparatus required for the above.

  In the decomposition treatment apparatus for the object to be processed, the apparatus comprises a heat exchanger for exchanging heat between the gas deodorized by the cleaning apparatus and the air sent from the air supply means, and the air heated by the heat exchanger In the processing chamber.

  The present invention includes a jacket that is provided at least at the bottom of the treatment tank and is supplied with the gas deodorized by the deodorization apparatus. Therefore, the inside of the treatment chamber is predetermined using high-temperature gas heat after the deodorization treatment. A temperature atmosphere can be maintained, and a soil activator can be produced efficiently and stably.

It is a perspective view showing the outline of the decomposition processing device of the processed object concerning one embodiment of the present invention. It is a cross-sectional side view of the same decomposition treatment apparatus. It is a cross-sectional front view of the same decomposition treatment apparatus. It is a front view of the same decomposition treatment apparatus. It is a block diagram which shows the control system of the same decomposition processing apparatus. It is a perspective view which shows the outline of the decomposition processing apparatus of the to-be-processed object which concerns on other embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  1-5 shows one Embodiment of the decomposition processing apparatus of the to-be-processed object of this invention. This decomposition processing apparatus 1 decomposes an object to be processed using aerobic microorganisms. Examples of the processing object to be processed by the decomposition processing apparatus include waste such as raw garbage, discarded agricultural products, and sludge.

  As the discarded agricultural products, discarded vegetables and discarded fruits are preferable. Examples of the discarded vegetables include cabbage, Chinese cabbage, carrot, onion, tomato, cucumber, radish, shiitake, etc. (harvested, damaged, etc.). Examples of discarded fruits include grapefruits, apples, pears, etc. (harvested and damaged fruits). In addition, if a to-be-processed object can be decomposed | disassembled with a decomposition processing apparatus, it will not specifically limit.

  1 to 3, the decomposition processing apparatus 1 includes a processing tank 11 having a processing chamber 12 for processing a workpiece 50. The treatment tank 11 has front and rear walls 13 and 14 having a substantially semi-cylindrical lower portion (U-shaped cross section), both side walls 15 and 16 closing both end openings of the front and rear walls 13 and 14, and the front and rear walls 13. , 14 and the top wall 17 that closes the upper surface opening.

  The top wall 17 is provided with a loading port 17 a for loading the workpiece 50 into the processing chamber 12, and this loading port 17 a can be opened and closed by an opening / closing lid 18.

  A stirring means 20 for stirring the workpiece 50 is provided in the processing chamber 12 of the processing tank 11, and the stirring means 20 includes a rotating shaft 21 rotatably supported on both side walls 15 and 16. The stirring blade 22 is attached to the rotating shaft 21 and extends radially outward of the rotating shaft 21.

  One end of the rotating shaft 21 is linked to an electric motor 23 as a drive source. When the electric motor 23 is rotationally driven, the rotating shaft 21 and the stirring blade 22 are integrally rotated, and the stirring blade 22 is configured to move along the inner surface of the lower portion of the processing tank 11. Therefore, the stirring blade 22 that rotates together with the rotating shaft 21 acts on the workpiece 50 accommodated in the bottom of the treatment tank 11, and the workpiece 50 and bacteria contained in the treatment chamber 12 of the treatment tank 11. Stir the floor material uniformly (aerobic microorganisms are deposited on the fungus floor material) evenly. By this stirring action, sufficient air is supplied to the workpiece 50 and the fungus bed material, and the fermentation action of aerobic microorganisms can be promoted.

  An odor is generated when the workpiece 50 is decomposed in the treatment tank 11, and this odor is discharged out of the treatment tank 11 as an odor gas. Further, in order to activate soil bacteria and efficiently decompose the object to be processed, it is necessary to keep the inside of the processing chamber 12 in a temperature atmosphere of a predetermined temperature.

  Therefore, the odor gas generated when the object to be processed 50 is decomposed is heated to a predetermined temperature and deodorized, and the heat generated during the deodorizing process is used to maintain the inside of the processing tank 11 at a set temperature. A hot air supply system 30 is provided.

  The hot air supply system 30 includes a cleaning device 31, a first heat exchanger 32, a second heat exchanger 33, a blower 34 as air supply means, and a jacket 25. In addition, the cleaning apparatus 31, the 1st heat exchanger 32, the 2nd heat exchanger 33, and the blower 34 are arrange | positioned at the lower part of the processing tank 11, as shown in FIG.

  The jacket 25 is provided in the lower part of the processing tank 11. That is, as shown in FIGS. 1 and 2, the jacket wall 26 is provided along the outer surfaces of the front and rear walls 13 and 14 so as to have a predetermined gap from the outer surfaces of the front and rear walls 13 and 14. The jacket wall 26 and the front and rear walls 13 and 14 form a jacket 25 made of an air layer so as to cover at least the lower outer surface of the front and rear walls 13 and 14.

  The jacket 25 only needs to be formed so as to cover at least the lower outer surfaces of the front and rear walls 13 and 14, but can be provided up to the upper ends of the front and rear walls 13 and 14 as indicated by phantom lines in FIG. is there. In addition to the front and rear walls 13 and 14, the jacket 25 can also be provided on both side walls 15 and 16 to cover the front and rear walls 13 and 14 and both side walls 15 and 16 of the treatment tank 11.

  One of the jackets 25 is provided with a gas inlet part 26a, and the other is provided with a gas outlet part 26b to which an exhaust pipe 27 is connected. Here, in the present embodiment, one of the jackets 25 is one of the jacket walls 26 in the longitudinal direction of the rotating shaft 21 (the side on which the electric motor 23 is provided) and the rear wall 14 side. The other side of the jacket 25 is the other side of the jacket wall 26 in the longitudinal direction of the rotation shaft 21 (the side where the electric motor 23 is not provided) and the front wall 13 side.

  Therefore, the gas inlet part 26 a and the gas outlet part 26 b are provided on a substantially diagonal line in the plan view of the processing tank 11. As described above, by providing the gas inlet part 26a and the gas outlet part 26b on a diagonal line, the gas entering from the gas inlet part 26a is uniformly supplied over the entire interior of the jacket 25, and then the gas outlet part. 26b can be discharged.

  The blower 34 is connected to the first heat exchanger 32 so as to blow air to the first heat exchanger 32. Moreover, an air supply pipe 35 extending from the first heat exchanger 32 is provided in the processing tank 11 (one side wall 15) so that the air that has passed through the first heat exchanger 32 can be supplied into the processing chamber 12. Connected to the top. In the processing chamber 12, an air ejection part 19 that ejects air supplied from the air supply pipe 35 is provided.

  The top wall 17 of the processing tank 11 is provided with an exhaust part 17 b communicating with the inside of the processing chamber 12, and a low-temperature gas pipe 37 that sends the odor gas discharged from the exhaust part 17 b toward the second heat exchanger 33. The exhaust part 17b and the second heat exchanger 33 are connected. A filter 38 is interposed in the low temperature gas pipe 37.

  A high-temperature gas pipe 39 that sends the odor gas that has passed through the second heat exchanger 33 to the cleaning device 31 is connected between the second heat exchanger 33 and the cleaning device 31.

  The cleaning device 31 includes a deodorizing blower 40 that sucks the odor gas flowing through the high temperature gas pipe 39, a heater 41 that heats the odor gas discharged from the deodorizing blower 40 to a predetermined temperature, and the odor heated by the heater 41. It comprises a deodorizing device 43 that deodorizes the gas.

  As the deodorizing device 43, for example, a catalytic combustion type deodorizing device that decomposes and deodorizes the odor gas heated to a predetermined temperature by the heater 41 by oxidizing and burning by the action of the catalyst is employed. The deodorizing device 43 is connected to the second heat exchanger 33. Accordingly, the high-temperature gas deodorized by the deodorization device 43 is heat-exchanged with the low-temperature odor gas discharged from the processing chamber 12 in the second heat exchanger 33.

  The 2nd heat exchanger 33 and the 1st heat exchanger 32 are connected directly or via the piping 44, and the gas (deodorized gas) which went out of the 2nd heat exchanger 33 is 1st heat. Heat enters the exchanger 32 and is exchanged with the air supplied from the blower 34.

  Here, the temperature of the air supplied from the blower 34 is the normal temperature of the atmosphere. On the other hand, the temperature of the gas leaving the second heat exchanger 33 is higher than the ambient temperature of the atmosphere. For this reason, in the first heat exchanger 32, the air supplied from the blower 34 is heated to a predetermined temperature by the gas exiting the second heat exchanger 33.

  A deodorized gas pipe 45 extending from the first heat exchanger 32 is connected to the gas inlet 26 a of the jacket 25. Therefore, the deodorized gas is supplied to the jacket 25 through the deodorized gas pipe 45 after the temperature is slightly lowered in the first heat exchanger 32.

  Next, a control system of the decomposition processing apparatus having the above configuration will be described. As shown in FIG. 5, the decomposition processing apparatus 1 includes a temperature sensor 46 for detecting the temperature in the processing chamber 12, and a controller 47 including a microcomputer to which a detection signal of the temperature sensor 46 is transmitted. And.

  The controller 47 includes a memory 48 that stores a temperature (set temperature in the processing chamber 12) suitable for the soil bacteria to ferment and decompose the workpiece 50. The controller 47 controls the operation of each of the electric motor 23, the blower 34, the deodorizing blower 40, the heater 41, and the deodorizing device 43 based on the detection signal of the temperature sensor 46.

  The decomposition processing apparatus according to the present embodiment has the above-described configuration. Next, a case where an object to be processed is processed using such an apparatus will be described.

  First, the opening / closing lid 18 is opened and the workpiece 50 to be decomposed is put into the processing chamber 12, and then the opening / closing lid 18 is closed.

  In the processing chamber 12, soil fungus that has been deposited on the fungus bed material is stored in advance, and the treatment object 50 can be decomposed by the soil fungus.

  Specifically, the electric motor 23 is operated, and the rotating shaft 21 and the stirring blade 22 are rotated in a predetermined direction. The fungus bed material on which the soil fungus has been implanted and the material to be treated 50 are mixed, and during this mixing, the soil fungus comes into contact with the air in the treatment chamber 12 to homogenize the fungus bed material and the activity of the soil fungus that has been deposited. Is achieved. In addition, rice husk, shredder dust or rice bran is used as the fungus bed material.

  The blower 34 takes outside air (air) and supplies the taken air into the processing chamber 12 through the first heat exchanger 32, the air supply pipe 35, and the air ejection part 19. The air is controlled to be heated to a preset temperature by the first heat exchanger 32 as will be described later. In addition, the air temperature in the processing chamber 12 is adjusted by controlling the rotational speed of the blower 34 and adjusting the air supply amount.

  The odor gas generated by decomposing the workpiece 50 in the processing chamber 12 is discharged to the outside of the processing chamber 12 through the exhaust part 17b, and after the foreign matter is removed by the filter 38 through the low temperature gas pipe 37. The second heat exchanger 33 is reached. The odor gas that has passed through the second heat exchanger 33 is sucked into the deodorizing blower 40 of the cleaning device 31. The deodorizing blower 40 sends odor gas to the heater 41, and the odor gas heated to a predetermined high temperature by the heater 41 is deodorized in the deodorizing device 43.

  The deodorized gas reaches the second heat exchanger 33 in a high temperature state. In the second heat exchanger 33, the high-temperature gas immediately after exiting the deodorizing device 43 and the low-temperature odor gas exiting the processing chamber 12 are subjected to heat exchange. That is, the low temperature odor gas exiting the processing chamber 12 is preheated by heat exchange with the high temperature gas immediately after exiting the deodorizing device 43.

  As described above, when the odor gas is deodorized, preliminary heating is performed. Therefore, gas heat can be used more effectively than when preliminary heating is not performed.

  The gas that has passed through the second heat exchanger 33 enters the first heat exchanger 32. The high-temperature gas exiting the second heat exchanger 33 is heat-exchanged with the normal-temperature air sent from the blower 34 in the first heat exchanger 32. Therefore, the air is supplied into the processing chamber 12 while being heated to a predetermined temperature.

  In addition, the deodorized gas is supplied to the jacket 25 through the deodorized gas pipe 45 and the gas inlet portion 26a after being slightly cooled in the first heat exchanger 32. The gas in the jacket 25 is discharged to the atmosphere through the gas discharge port portion 26b and the exhaust pipe 27.

  The temperature of the odor gas heated by the heater 41 is the highest, for example, 200 to 300 ° C. The atmospheric temperature suitable for the decomposition treatment in the processing chamber 12 is preferably controlled to a temperature of about ½ or less of the odor gas temperature heated by the heater 41 (for example, about 50 ° C. to 150 ° C.).

  In the present embodiment, the deodorized gas is supplied to the jacket 25, and the treatment tank 11 is kept warm using the gas heat in the jacket 25, so that the inside of the treatment chamber 12 is maintained in an optimum predetermined temperature atmosphere. And the decomposition process can be performed efficiently and stably.

  In addition, in this way, the treatment tank 11 is kept warm using the gas heat subjected to the deodorization treatment in the jacket 25, and the odor in the cleaning device 31 is preliminarily heated when the odor gas is deodorized. The heating efficiency of the gas can be improved, the gas heat can be effectively used, and the running cost of the decomposition processing apparatus can be reduced.

  When the decomposition treatment is completed as described above, the soil fungi are still alive in the fungus bed material at the end of the decomposition treatment. When this treatment residue is returned to the soil such as a field, the soil fungi in the residue are removed from the pathogenic bacteria in the soil. In addition to reducing activity, the organic matter in the soil is decomposed, so that oxygen in the air enters the soil and softens the soil, improving the soil suitable for agricultural products.

  The present invention is not limited to the embodiment described above. For example, as shown in FIG. 6, a single heat exchanger 36 can be employed. In addition, the same member as the said embodiment attaches | subjects the same code | symbol, and abbreviate | omits description of each member.

  Specifically, the low temperature gas pipe 37 is connected to the deodorizing blower 40 of the hot air supply system 30. In the heat exchanger 36, the deodorized high-temperature gas and normal-temperature air are heat-exchanged.

  In this embodiment, the deodorized gas is supplied to the jacket 25 and the heat can be used effectively, so that the decomposition process can be performed efficiently and stably.

DESCRIPTION OF SYMBOLS 1 Decomposition processing apparatus 11 Processing tank 12 Processing chamber 20 Stirring means 21 Rotating shaft 22 Stirring blade 23 Electric motor 25 Jacket 26 Jacket wall 30 Hot air supply system 31 Cleaner 32 1st heat exchanger 33 2nd heat exchanger 34 Blower ( Air supply means)
40 Deodorizing blower 41 Heater 46 Temperature sensor 50 Object to be processed

Claims (3)

An apparatus for decomposing an object to be processed that decomposes the object to be processed by an aerobic microorganism,
A treatment tank having a treatment chamber in which the workpiece is accommodated;
A stirring means for stirring the object to be processed in the processing tank;
Air supply means for sending air at a predetermined temperature into the processing chamber;
A cleaning device that heats the odor generated by the decomposition of the object to be processed and deodorizes it;
An apparatus for decomposing an object to be processed, comprising: a jacket provided at least at a bottom of the processing tank and supplied with a gas deodorized by the cleaning device. In the decomposition processing apparatus of the to-be-processed object of Claim 1,
A heat exchanger for exchanging heat between the odor gas discharged from the treatment tank and the gas deodorized by the cleaning device, and sending the odor gas preheated by the heat exchanger to the cleaning device A decomposition processing apparatus for an object to be processed, characterized in that it is configured. In the decomposition processing apparatus of the to-be-processed object of Claim 1 or 2,
A heat exchanger for exchanging heat between the gas deodorized by the cleaning device and the air sent from the air supply means, and configured to send the air heated by the heat exchanger into the processing chamber; A decomposition processing apparatus for an object to be processed.

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