KR19980064936A - Organic waste treatment method using heat pump heat exchange and recycle air conditioning system - Google Patents

Abstract

In the present invention, the outer body is formed by the outer case 115, and the suction air chamber 102, the precooling coil 103, the cooling coil 103, and the condensate drain PAN of high temperature and high humidity air installed inside and outside the case. 157, reheat coil 104, platinum catalyst deodorizer 11 1, waste heat recovery device 154, high temperature dry air chamber 106, internal circulation air FAN 108, and the like. ,

The precooling coil 103 and the reheating coil 105 are connected by a circulation pump 185 and a pipe, and the heat medium, which is a distilled water and an ethylene glycol mixed solution, circulates and exchanges circulating air and thermal energy to inflow from the treatment tank. It is configured to precool the hot and humid air of about 60 ℃ to about 34 ℃ or to reheat the air dehumidified to about 56 ℃ in the cooling coil to about 10 ℃,

With the cooling coil 104 as an EVAPORATOR, the Freon-22 cooling system composed of a gas compressor 172, an air cooling condenser 173, an expansion valve 174, a pressure switch 176, and a refrigerant pipe 178 is used. The circulating air flowing through the pre-cooling coil from the treatment tank to about 10 ℃ is rapidly cooled to condense and drain water vapor and water-soluble gas, so after removing water, the recirculated air from the reheat coil to the temperature in the treatment tank is circulated. Only part of the air, which is less than about 2% of the air volume, is completely deodorized from the platinum catalyst deodorizer and discharged to the outside, and the internal circulation recycle air conditioning system is capable of recycling most of the internal air. Connect the exhaust port and the inlet port using flexible type base duct to the connector located in the upper part of the treatment tank. Hyogi relates to fermentation Dryer, destruction, and so on and apply to all processing methods without regard to the specific treatment of organic waste processing method which may indicate excellent performance.

Description

Organic waste treatment method using heat pump heat exchange and recycle air conditioning system

The present invention relates to an organic waste treatment apparatus, and more particularly, fermentation and drying, which are important parts of an organic waste treatment apparatus which processes organic waste such as residue, kitchen waste, livestock waste, livestock manure, etc. and recycles them into feed or compost. It relates to a treatment method such as odor removal.

Today, domestic waste is 47,774 (ton / day), of which about 31.6% of 15,075 (ton / day) of food waste is generated, and only 2.1%, or 316 tons, is recycled and 95.4% of landfill is landfilled. In addition to wastes from agricultural and fisheries distribution processes, leachate from landfills, water pollution from nearby rivers, and groundwater pollution are caused, especially due to complaints from residents around landfills.

As a result, there has been a growing interest in not only the treatment of organic waste, which is the main cause of environmental pollution, but also the way in which such waste can be treated and recycled. As part of this effort, organic waste can be disposed of and recycled into animal feed or organic compost. The equipment and facilities have been developed one after another, and about 200 companies nationwide are participating in the production, and about 30 companies have obtained K-MARK quality certification by examining the performance of the production technology research institute. have.

Devices for processing such organic wastes are classified into various types according to their purpose and method, and according to the classification method according to the technical standard of the Korea Institute of Industrial Technology, they are classified into fermenter, dryer, fermentation dryer, and extinguisher. According to the characteristics, the processing temperature, environment, and processing time are distinguished when operating the processing equipment.In case of the conventional products, the processing time is delayed considerably, the energy is excessively injected, and the odor is generated. That's what's happening.

In particular, water removal and odor treatment are essential in the treatment of organic waste, and it continuously supplies the heat energy required for maintaining the treatment temperature and the latent heat of evaporation to vaporize water according to the treatment method and capacity, and optimizes the environment in the treatment tank. The problem of the technology of the organic waste disposal apparatus is how to effectively remove the gas containing water vapor and odor generated continuously while maintaining the state of.

The organic waste treatment apparatus of the granular structure shown in FIG. 1 is mainly suitable for a small-capacity dryer or a high-speed fermentation dryer, and the agitator 12 while heating the waste in the treatment tank through hot steam or a heat medium in the outer jacket portion 11. If the material is continuously transferred and the temperature of the waste is increased, steam and gas are continuously generated in the treatment tank.

At this time, if a certain amount of air is supplied to the treatment tank through the air supply 휀 (14), air including water vapor and gas is discharged through the exhaust port (17). Can be achieved.

2, the horizontally shaped treatment apparatus is a method most commonly applied to most fermenters, fermentation dryers, and extinguishers. It is also possible to achieve the desired purpose.

As described above, in order to determine the performance of any organic waste, no matter what structure or method is used, it is important to determine the relationship between the input and output of thermal energy in order to keep the environment in the treatment tank at an optimum state according to the treatment method. In addition, it will be effectively treated to discharge the gas including the steam and odor generated without stickiness.

Therefore, in order to effectively discharge the steam and gas flow generated from the treatment tank, an appropriate amount of air circulation and discharge is required. If the amount of air circulation is small, the processing time is significantly delayed because the generated steam and gas cannot be discharged. If the air circulation amount is large, the energy for preheating the air supply and the loss of thermal energy due to the exhaust are inefficient in terms of energy efficiency, and in particular, high cost is required for the deodorization treatment of the exhaust gas.

Exhaust air and exhaust gas treating apparatuses of these conventional organic waste treating apparatuses use various methods as shown in FIG. 3, and will be described in detail according to the treating method.

3-1 shows that the air supplied by the air supply fan (31) is introduced into the treatment tank after being heated to a constant temperature in the preheater (32) by a method of adsorbing and ozone oxidation. The air containing the gas is discharged by the exhaust fan 35 through the exhaust port 34. At this time, the ozone generator 36 supplies a certain amount of ozone to the exhaust gas through the inlet port to oxidize the specific gas stream, and then the adsorption type deodorization box. While passing through (37), certain gas streams are adsorbed, deodorized, and exhausted to the atmosphere.

However, in the case of ozone, there is no way to continuously administer a certain amount without a control device that can adjust the appropriate amount according to the amount of exhaust or the type of exhaust gas, and it clearly shows a deodorizing effect on some specific gases, but does not affect any gas at all. If residual ozone is discharged into the atmosphere, it must be used as a substance that can affect the environment itself. Therefore, use caution as an adsorbent and use substances that selectively adsorb gas such as activated carbon or zeolite. Due to this, the performance is degraded and the adsorbent needs to be replaced periodically after a certain period of time.

3-2] shows a biological treatment method using biomedia, in which a carrier 48 in which microorganism fungi that decomposes odors is accumulated in the deodorization tower 41, and exhaust gas passes through biomedia. Microbial fungi absorb and decompose odors in the exhaust gas, which may have some deodorizing effects.But microbial fungi are affected by the environment, and microorganisms may be affected by long-term operation of the device, a decrease in outdoor air temperature in the winter, or environmental effects. Are often killed and the performance deteriorates considerably. Water must be wetted through the circulation pump to wet the carrier, and the contact area between the exhaust gas and the carrier and the flow rate of the carrier are limited. There is a fatal disadvantage that the size of the deodorization tower of Korea should be large.

3-3 shows that the exhaust gas passes through the inside of the coil made of the fin tube 55 and the surface of the coil is cooled through the cooling fan 57. As the water vapor condenses, the water-soluble gas flows. Because it dissolves, the deodorizing effect can be obtained. However, when the outside air temperature is high in the summer, the performance is remarkably deteriorated, and when the outside air temperature is low in the winter, there are many difficulties in application.

The complementary treatment method is a cooling treatment method using refrigeration cylinders. As cooling refrigerant gas consisting of fin tubes passes through the low temperature refrigerant gas, it rapidly cools the exhaust gas passing between the AL fins by the latent heat of evaporation of the refrigerant gas. The method of the structure which condenses water vapor and a water-soluble gas to DRAIN is used. However, in order to make up for the removal of moisture and water gas, it is installed in combination with adsorption or ozone oxidation method to compensate for the fatal disadvantage that insoluble gas cannot be treated, but it is fundamentally insufficient for perfect treatment of exhaust gas.

3-4 shows a catalytic oxidation method, in which the exhaust gas flows through a catalyst composed of a honeycomb carrier coated with platinum or the like, although it is oxidized (burned) at about 800 ° C to 1000 ° C or higher in a general situation. In this case, the oxidation is performed at a relatively low temperature of about 300 ° C to 350 ° C.

Generally, the temperature of treating organic waste is about 50 ℃ ~ 70 ℃ and the temperature of exhaust gas discharged by exhaust fan 64 is also about 50 ℃ ~ 70 ℃ corresponding to the temperature in the treatment tank. 65) After passing through the platinum catalyst carrier (66) after being heated to about 300 ° C to 350 ° C, the exhaust gas is oxidized, which is an excellent method of producing a deodorizing effect almost completely.

However, in order to heat 1CMM from about 50 ℃ ~ 70 ℃ to about 300 ℃ ~ 350 ℃, (1CMM × 60MIN) × 1.28 (standard specific gravity of air) × 0.29 (standard specific heat of air) × (350 ℃ -70 ℃) = 6,236 / HR requires heat energy supply and when using electric heater as energy source 6,236 / HR ÷ 860 / HR = 7.3 / HR or exhaust gas by 1 CMM It requires electrical energy of more than / HR and requires high maintenance cost compared to excellent deodorizing performance.If the preheating temperature is low due to insufficient capacity of electric heater, deodorization may be insufficient due to incomplete oxidation or catalytic poison may occur. Since the catalyst carrier is very expensive and the moisture and dust in the exhaust gas have a great influence on the performance and the lifetime of the platinum catalyst, there are many difficulties in practical applications such as pretreatment of the exhaust gas to remove dust.

As described above, a multi-wind air flow treatment method is essential to effectively remove water and gas in the treatment tank. However, in a conventional treatment apparatus, a preheater must be operated to prevent a temperature drop in the treatment tank due to air supply. When the outside air temperature in winter is low, more preheating energy is required, and due to the high cost of facilities and maintenance costs for treating exhaust gas, the amount of air must be limited to a minimum. There was a problem that there is not enough to handle effectively.

4] is a gas compression type direct cooling method as a treatment method that solves a large part of various problems of other conventional organic waste treatment apparatuses by using a multi-wind amount RECYCLE air conditioning system using a gas compression refrigeration system. A circulation system of a low temperature air conditioning system is shown. The hot and humid air including the water vapor and the gas flow generated in the treatment tank 70 flows into the chamber 72 of the air conditioning unit through the exhaust port 71 and the cooling coil 73 While cooling through, it is rapidly cooled to about 10 ° C, and water and water gas are condensed and drained, and the cool and dehumidified cold air is heated in the reheat coil 74 to about 40 to 45 ° C and then treated by the circulation fan 76. The internal circulation structure is supplied through the air supply port 77 of the tank.

At this time, the heat source of the reheat coil 74 uses the condenser waste heat of the frozen CYCLE.

This treatment method is more effective than other conventional treatment methods and circulates most of the air except for a small amount of ventilation in a recycle structure, so it does not discharge odors. It does not need an energy source and shows excellent performance.

However, if the temperature of the air flowing into the chamber 72 of the air conditioning unit is too high due to the characteristics of the refrigeration cylinder, the refrigeration system is overloaded, causing a failure of the gas compressor, and the temperature of the air reheated through the reheater 74. It was also heated to about 45 ℃ corresponding to the saturation temperature of the refrigeration CYCLE condensation pressure.

In addition, the air flowing into the cooling coil 73 has a temperature of about 60 ° C. and a relative humidity of about 40% of the total enthalpy 40 (KCAL / KG). In order to rapidly cool up to 10 ° C of total enthalpy 7 (KCAL / KG), a high-performance refrigeration system is required, and since the facility is very expensive, there are problems such as many difficulties to apply despite excellent performance.

Organic wastes emitted from Korea show various characteristics depending on the place where they are generated, and the method for treating and recycling them cannot insist on any particular method.

Therefore, the present invention has been made to solve the various problems of the conventional organic waste treatment apparatus as described above by applying an air conditioning system having a multi-wind amount RECYCLE structure according to the treatment method according to the generation place of organic waste, the smell is generated. It provides a small deodorizing effect and thus an organic waste treatment device that can convert high quality organic waste by-products into useful resources at low cost by recovering the thermal energy input while maintaining the environment in the treatment tank according to each characteristic of the equipment. It is.

It is another object of the present invention to solve the fatal problems in spite of the excellent performance of the multi-wind volume RECYCLE air conditioning system using the conventional gas compression refrigeration system to configure the air conditioning system of the low-cost high-performance recycle circulation structure processing according to the treatment method Despite the environmental differences within the tank, it is to provide an organic waste treatment apparatus that can exhibit excellent performance regardless of a specific treatment method.

Therefore, in order to achieve the object of the present invention, the intake air chamber 102, which is capable of uniformly distributing hot and humid air from the treatment tank and evenly distributes it to the pre-cooled COIL, the hot and humid circulation air and the heat medium exchanges heat with each other. Preheated and high temperature and high humidity air is pre-cooled step by step pre-cooled coil 103 arranged in multiple stages to cool, arranged in multiple stages to condense and drain the water and water soluble gas in the primary cooled air. Cooling coil 104, a reheating coil 105 capable of reheating the air dehumidified in the cooling coil using a heating medium heated in the precooling coil, and a dry air chamber 106 having a structure for recovering waste heat of the platinum catalyst deodorizer. Circulating FAN 108 to circulate the internal air to the recycling system, releasing very small amounts of circulating air and as natural as the released air. Which consists of supply air in a structure sikilsu Air conditioning

The precooling coil 103 and the reheating coil 105 are connected by a circulation pump 127 and a pipe, and the heat medium, which is a distilled water and ethylene glycol mixed solution, circulates and exchanges circulating air and thermal energy with each other. It is configured to precool about 60 ℃ hot and humid air from the tank to about 33 ℃ and reheat coils to reheat the air dehumidified to about 10 ℃ in the cooling coil. Heat pump type heat exchange means ,

The cooling coil 104 is an EVAPORATOR and is composed of a gas compressor 121, an air cooling condenser 122, an expansion valve 124, a pressure switch 126, a refrigerant pipe 125, and the like. Rapid cooling and dehumidification of the circulated air pre-cooled to about 33 ℃ to about 10 ℃ enables condensation and drainage of water vapor and water-soluble gas. Freon-22 Cooling Means

It completely disposes of very small amount of air less than about 2% of total circulation air and releases it to the outside Platinum catalyst deodorization means ,

All functions are automatically controlled Automatic control means It is to provide an organic waste treatment apparatus consisting of.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows schematically the organic waste processing apparatus of a granular structure.

FIG. 2 is a view schematically showing an organic waste disposal apparatus having a horizontal structure. FIG.

FIG. 3 is a view schematically showing the discharge air and the malodor treatment device of the conventional organic waste treatment device according to the treatment method thereof.

3-1 is a schematic perspective view of a treatment method combining adsorption and ozone oxidation;

3-2 is a schematic perspective view of a biological treatment method using biomedia.

3-3 is a schematic perspective view of the air cooling treatment method.

3-4 is a schematic perspective view of a catalytic oxidation treatment method.

Figure 4 is a schematic perspective view of a multi-quantity RECYCLE air conditioning system using a conventional gas compression refrigeration SYSTEM.

5-1 is a perspective view of a recycle air conditioning system according to the present invention.

5-2 is a perspective view showing an embodiment in which the air conditioning system according to the present invention according to FIG. 5-1 is installed on the rear surface of the organic waste treatment apparatus.

6] is an air conditioning circulation diagram showing the action and state of the circulating air in the organic waste treatment apparatus according to an embodiment of the present invention.

7 is a detailed view of each configuration of the present invention.

7-1 is a perspective view showing a heat exchange coil.

7-2 is a detailed block diagram showing the configuration of an air chamber, a precooling coil, a cooling coil, and a reheat coil.

7-3 is a detailed block diagram showing the configuration of a heat pump type heat exchange system.

7-4 is a detailed block diagram showing the configuration of an air cooling system using a Freon refrigeration system.

7-5 is a detailed block diagram showing a platinum catalyst deodorization system and a waste heat recovery system.

8 is an air line diagram applied to the present invention by expanding the application of the Keria air line generally used.

※ Explanation of code about main part of drawing ※

103: precooling coil 104: cooling coil 105: reheat coil

108: circulation FAN 121: gas compressor 122: air-cooled condenser

124: expansion valve 127: heat medium circulation pump 150: platinum catalyst deodorizer

151: platinum catalyst deodorizer preheat heater. 154: waste catalyst recovery deodorizing platinum catalyst

Hereinafter, the accompanying drawings will be described in detail an embodiment of the present invention applied to the organic waste treatment apparatus as a reference.

As shown in FIG. 5-1, the internal circulation type air conditioning system of the present invention has an outer body formed by an outer case 115, and an intake air chamber of high temperature and high humidity air installed inside and outside of the case. 102, precooling coil 103, cooling coil 104, condensate drain PAN 157, reheat coil 105, waste heat recovery device 154, high temperature dry air chamber 106, internal circulation air FAN 108 The air conditioning system is composed of

The precooling coil 103 and the reheating coil 105 are connected by a circulation pump 127 and a pipe, and a heat pump type heat exchange system that exchanges circulating air and thermal energy while circulating a heat medium that is a distilled water and an ethylene glycol mixed solution inside. , And

At the lower end of the air conditioning system, a gas compressor 121, an air cooling condenser 122, an expansion valve 124, a pressure switch 126, and a refrigerant pipe 125 are connected to the cooling coil of the air conditioning system. This is composed.

Platinum catalyst deodorizer 111 is installed on the top of the air conditioning system, and after reheating, only a small amount of air corresponding to less than about 2% of the total circulating air supplied to the treatment tank is completely deodorized from the platinum catalyst deodorizer to the outside. It is an internal circulation recycled air conditioning system that is capable of recycling most of the internal air.It is connected to an exhaust port and an intake port using a flexible base DUCT 101 to a connector located at an upper part of a treatment tank of an organic waste treatment device. It is a complete structure that can be applied regardless of specific treatment method.

6] shows the operation and state of the circulating air in the general organic waste treatment apparatus according to the embodiment of the present invention. When the organic waste treatment apparatus is normally operated and a predetermined time elapses, the temperature in the treatment tank 141 is shown. And the temperature of the material rises at this time, the gas is generated along with the water vapor and hot and humid air including the gas is introduced into the air chamber 144 through the base DUCT.

In the air chamber, the air is uniformly distributed and passed through the precooling coil 145, and then cooled first to an intermediate temperature, and then cooled through the cooling coil 146 to be secondary cooled, and moisture vaporized in the air vapor state in the dew is dew. As condensed into and condensed in the drain PAN (157) and is discharged to the outside through the drain outlet 158 to remove the moisture.

At this time, since most of the water-soluble gas flow of the gas contained in the air is condensed and discharged together, it exhibits a primary deodorizing effect.

Cooled and dehumidified air is the lowest density in the circulating air by removing water vapor and water-soluble gas contained in the air, and enters the reheat coil 147, passes through and heats the heat from the heat medium circulated after being heated in the pre-cooling coil. It is absorbed and reheated and heated to a temperature almost equal to the temperature in the treatment tank. At this time, the volume corresponding to the partial pressure of water vapor and water soluble gas removed from the cooling coil and the expanded air are expanded and heated. It is introduced through 156 and is a source of oxygen required for aerobic fermentation.

The hot dry air, which has been removed from the water and gas and reheated, is collected in the outlet chamber 106 of the air conditioning system and supplied to the treatment tank through the base DUCT by the internal circulation FAN.

At this time, since the steam and gas flow are continuously generated in the treatment tank, the density of the air is considerably high, and in order to maintain the air pressure in the treatment tank at a slight positive pressure, some of the air supplied to the treatment tank by the circulation fan needs to be discharged to the outside. Will be.

The air discharged to the outside is less than about 2% of the total circulating air and can maintain the equilibrium of the internal circulation air pressure, and the oxygen concentration in the treatment tank can be maintained at 20% or more, so the oxygen supply for aerobic fermentation is sufficient and the platinum catalyst deodorizer Completely processed through 150 is discharged to the outside through the waste heat recovery device 154. At this time, the air flowing into the platinum catalyst is dried at a high temperature by removing moisture and water-soluble gas, and there is no dust (DUST) at all, thereby minimizing the capacity of the platinum catalyst deodorizer and maximizing the performance and life of the heating heater and the platinum catalyst carrier. have.

Referring to the drawings shown in Figure 7 will be described in more detail with respect to each configuration of the present invention.

7-1 shows a heat exchange coil in which a coolant and a heat medium pass through the inside of the copper pipe coil 161 having excellent thermal conductivity, and air passes through the outside of the coil to perform heat exchange with each other. Is a common type of fin coil with AL fin (162) attached to increase the heat transfer area on the air side, which is significantly lower.

The core of the present invention is to remove the water and gas generated in the organic waste treatment apparatus through the heat exchange between the fluid, such as heat exchange between the air and the heat medium by the heat pump heat exchange system and heat exchange between the air and the refrigeration system and to vaporize the water This is to achieve the desired purpose by recovering the cold and heat energy supplied by the latent heat of evaporation and the latent heat of condensation of steam as much as possible.

Recycling In-circulation air-conditioning system using a cooling system requires heat energy to cool hot and humid air at the inlet of the cooling coil based on the cooling coil and reheats the dehumidified air at the outlet of the cooling coil.熱 energy is needed.

In other words, before and after the cooling coils, there is X and Z energy, and the X and Z energy of the other side are exchanged with each other, thereby reducing the cooling load in the cooling coil and constructing a system capable of efficiently utilizing energy.

As shown in detail in FIG. 7-2, the COIL unit has an air chamber at the inlet and the outlet side, and consists of three sets of coil groups in which multiple fin coils are arranged in parallel.

As shown in FIG. 7-3, the precooling coil 103 and the reheating coil 105 are connected to the circulation pump 185 and the pipe, and the coil 1 of the reheating coil is formed by the circulation pipe 180. 181 is connected to the coil 8 of the pre-cooling coil 168, the coil 8 of the reheating coil 183 is symmetrically connected to the coil 1 of the pre-cooling coil 182, and the inside is a mixed solution of distilled water and ethylene glycol It is a heat pump type heat exchange system that exchanges heat energy with circulation air as the heat medium circulates.

As shown in detail in FIG. 7-4, the cooling coil 104 is a air-cooled EVAPORATOR of a refrigeration system, and is supplied from a Freon refrigeration CYCLE composed of a gas compressor 172, an air cooling condenser 173, an expansion valve 174, and a peripheral device. The air is cooled by using the heat of vaporization of the refrigerant gas.

The air flowing into the pre-cooling coil from the processing chamber of the organic waste and the air chamber connected to the base duct in the pilot unit is based on 60 ℃ which is an average temperature of about 55 ℃ to 65 ℃ which is optimal when the organic waste treatment system is operating normally. It was made.

The air volume was 2 CMM per 100 Kg / 20HR treatment of organic waste, and the cross-sectional area of the COIL was 0.5 M / S.

In addition, the Freon cooling system was configured such that the temperature of the air dehumidified at the cooling coil outlet was about 10 ° C.

When the device is operated normally, the cooled heat medium collected in the header 169 of the reheating coil is supplied to the header of the precooling coil by the circulation pump 185 and the pipe 186, and is distributed by the branch pipe 167 to form a parallel structure. Heat exchanges with the hot and humid air 162 flowing through the air chamber while flowing inside the coil.

The heat medium is coil 8, which is in contact with the relatively hot air at the inlet side of the pre-cooled coil 168 is heated hotter than coil 1, 182 and is supplied symmetrically to the reheat coil in the hot order through the circulation pipe (180). do.

At this time, the air heats the heat medium and deprives heat, so it is first cooled and supplied to the cooling coil. The air is cooled to about 10 ° C by the cold evaporative latent heat of the refrigerant gas, and water vapor and water-soluble gas contained in the air As it is condensed and drained, water is removed and firstly deodorized.

The cool air dehumidified in the cooling coil 164 is introduced into the reheating coil and heated in the precooling coil to be reheated gradually by the heat medium supplied through the circulation pipe 180, and at the outlet of the reheating coil, it is slightly lower than the temperature in the treatment tank. Reheat to temperature.

In addition, the heat medium flowing in the coil is cooled in cold air, collected in the HEADER (169), and supplied to the precooling coil by the circulation pump again, so that a heat pump heat exchange system can be configured.

8 is a diagram illustrating an air line applied to the present invention by expanding an application of a Keria air line, which is generally used, to an air chamber 144 through a base DUCT in a treatment tank when an apparatus is normally operated. The hot and humid air that flows in is in a dry state with a dry bulb temperature of 60 ° C and a relative humidity of about 38% RH, which is not affected by the partial pressure of water vapor in the treatment tank and has a room for moisture absorption. Dalpi was A (40) (Kcal / Kg) and absolute humidity was about 0.041 (Kg / Kg).

The air dehumidified while passing through the pre-cooling coil and the cooling coil is saturated wet air with dry bulb temperature of 10 ℃ and relative humidity of 100% RH, and the absolute humidity is 0.0075 (Kg / Kg), so the water removal rate is O.041-0.0075 = 0.0335 (KG / KG) That is, it was able to dehumidify 0.0335 Kg of water per 1 KG of circulating air, and organic waste with 0.0335 (Kg / KG) × 1.23 (specific gravity of air at 10 ℃) × 60 Min = 2.47 (Kg / HR) When the internal temperature of the treatment tank is maintained at about 55 ℃ ~ 65 ℃, 100kg of organic waste with water content of about 85% is treated with air circulation of 2 CMM to treat up to 25% water content. CMM) ≒ 16 HR or 16 hours. At this time, the total enthalpy of air was 7 (Kcal / Kg), which is point C, and the energy required for the cooling load of 40-7 = 33 (Kcal / Kg) was required.

Cooled and dehumidified air is reheated up to about 56 ℃, which is the state of Ra without any change of moisture in the reheat coil. The total enthalpy is 18 (Kcal / Kg) at D point and the heat source is supplied from the pre-cooled coil. It is a heat medium.

The air in the La state is a dry air with a relative humidity of less than about 5%. It is supplied to the treatment tank through the base DUCT by the circulation fan, absorbs the moisture constantly generated in the treatment tank, and becomes the wet air again, becoming the air chamber of the air conditioning system. It is possible to construct an air conditioning system with a recycle internal circulation method.

In addition, the amount of energy exchanged between the circulating air and the heat medium through the heat exchange in the reheating coil is DC = 11 (Kcal / Kg).冷 energy of 22 (Kcal / Kg) cooling load is enough in Kcal / Kg), and the cooling efficiency of Freion refrigeration CYCLE is remarkably improved because the air (163) at the inlet of the cooling coil is improved to mine. Since the present applicant has filed an invention patent according to the application number 97-133 in January 1997, and made up until now, a multi-wind amount RECYCLE air conditioning system using the conventional gas compression refrigeration SYSTEM shown in FIG. Only about 50% of the refrigeration system can achieve the same performance of cooling capacity, and more stable CYCLE could be constructed.

7-5], the platinum catalyst deodorization system has an outer body formed by an outer case 205 and is provided with an exhaust gas inlet 196, a heating heater 203, and a HOT installed inside and outside the case. And a GAS passage 198, a platinum catalyst carrier 199, a HOT GAS exhaust pipe 200, a HOT GAS waste heat recovery coil 201, an exhaust gas exhaust port 202, and the like.

The hot and dry air introduced from the air chamber by the circulation fan 193 is supplied to the treatment tank of organic waste through the base DUCT 195, and a part of the air is exhausted from the platinum catalyst deodorizer through the exhaust port and the pipe 196. It enters the gas inlet.

The displacement is about 0.05 to 0.1 CMM and is heated to about 300 to 350 ° C. by the electric heater 203 in the heating tube 197. At this time, the heating heater is sufficient to 0.3Kw ~ 0.5Kw and the exhaust gas introduced into the platinum catalyst carrier 199 through the HOT GAS passage 198 is oxidized and deodorized while passing through the passage such as a honeycomb carrier.

The air flowing into the platinum catalyst deodorizer is dehumidified by cooling COIL, and the water-soluble gas is condensed by primary deodorization and reheated up to 56 ° C. from the waste heat recovery device 201 of the platinum catalyst deodorizer built in the exhaust chamber 191. As it is an additionally heated dry air about 2 ~ 3 ℃, there is almost no DUST and moisture, which can maximize the performance and life of the heating heater and platinum catalyst and can show almost perfect deodorizing effect.

The deodorized exhaust gas is cooled to about 60 ° C. in the HOT GAS waste heat recovery coil 201 installed in the air chamber 191 through the exhaust pipe 200, and then exhausted through the exhaust gas exhaust port 202.

Therefore, according to the organic waste treatment apparatus of the present invention, while recycling the air in the treatment tank by using a recycle air conditioning system, it completely discharges the water vapor and gas generated in the treatment tank, and uses a conventional gas compression refrigeration system. Despite the excellent performance of the air volume RECYCLE air conditioning system, it solves the fatal problems that it has, and constitutes a low cost high performance recycle circulation system, and only a fraction (less than about 2%) of the total amount of air circulated is completely deodorized from the platinum catalyst deodorizer. It can be configured to exhaust the system by applying to all the processing equipment regardless of the specific treatment method, such as dryer, fermenter, fermentation dryer, quencher can exhibit excellent performance.

In addition, the heat pump cold heat cyclone used to recover the energy contained in the high temperature and high humidity air flowing from the treatment tank and recirculate the air that is dehumidified by cooling reduces the load on the cooling coil and maximizes the cooling efficiency. The amount of heat to be minimized is excellent thermodynamic performance.

Another effect of the present invention can be applied to the air conditioning system of the same performance according to the installation conditions by applying a separate air conditioning system of the cooling system using a secondary refrigerant (cold water) in a place where ventilation is extremely poor.

Although the invention has been shown and described with respect to embodiments of the features thereof, those skilled in the art will recognize that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the appended claims. Anyone can easily know.

Claims (3)

About 2, which is a fraction of the circulating air after preheating, cooling dehumidification and primary deodorization, waste heat recovery reheating, and additional waste heat using platinum catalyst waste, preheating the hot and humid air containing steam and gas generated from the treatment tank of the organic waste treatment apparatus. SUCTION AIR CHAMBER means (144) to distribute the air flowing through the base DUCT with recycling air conditioning system that recirculates only the air of less than%, and uses the heat energy absorbed while preheating the hot and humid air. Heat pump heat exchange means for reheating, cooling means 145 for condensing and draining water vapor and water soluble gas, additional heating means 154 for heating the reheated circulating air using waste heat of platinum catalyst, Ventilation means 156, platinum nib, which automatically vents less than about 2% of air by the differential pressure of the internal circulation air pressure Recycling air conditioning system for an organic waste treatment apparatus comprising a deodorizing machine 150, a RECYCLE circulation means 148 of internal air, a cold water cooling system and a circulation means according to another embodiment of the present invention According to claim 1, wherein the heat pump heat exchange means and the cooling means has an air chamber at the inlet and the outlet side, three sets of coil group consisting of several sets of fin coils are pre-cooled coil 103, cooling coil 104, reheat coil ( 105) and the pre-cooling coil 103 and the reheating coil 105 are connected to the circulation pump 127 and piping, and the coil 1 of the reheating coil is 8 times of the pre-cooling coil by the circulation pipe 180. The coil 8 of the reheating coil is connected to the coil 1 of the precooling coil. The precooling coil and the reheating coil are symmetrically connected to the cooling coil, or are connected by the heater and the circulation pipe. It consists of a heat pump type heat exchange system that exchanges circulating air and heat energy while circulating a heat medium such as a mixed solution, and the cooling coil 104 is an air cooled EVAPORATOR of a Freon refrigeration system or heat using cold water as a secondary refrigerant. Air conditioning system, characterized in that it is a ventilation structure for cooling the air introduced from the precooling coil The method of claim 1, wherein the platinum catalyst deodorization and waste heat recovery means is a first deodorization treatment by dissolving, condensing and draining water-soluble gas with water vapor while preheating and dehumidifying the hot and humid air including the gas introduced from the treatment tank in a cooling coil. After reheating, additional heating is performed to heat the exhaust air corresponding to less than about 2% of the high temperature dry circulation air supplied to the treatment tank to about 300 ~ 350 ℃ using an electric heater within 0.5 KW / HR. Ultrasonic platinum catalyst deodorization and waste heat recovery that can show perfect deodorization by applying organic waste with an initial water content of about 85% within 20 hours with only one set of 90 × 50t small platinum catalyst carrier Air conditioning system characterized by structure