TWI693880B - Gas exhaust system for compost and a control method therefor - Google Patents

Abstract

A gas exhaust system for compost is used to solve the problem of incomplete air exchange in conventional compost production. The gas exhaust system according to the present invention includes a gas exchange module and a suction member. The gas exchange module includes a plurality of tubes and a gas accumulating portion. Each of the plurality of tubes intercommunicates with the gas accumulating portion and includes a plurality of holes extending through an outer periphery and an inner periphery of the tube. The suction member is electrically connected to a control member. The suction member includes a suction portion intercommunicating with the gas accumulating portion. The suction member sucks gas from the gas exchange module, and the gas exhausts via an exhaust portion.

Description

Compost exhaust system and its control method

The invention relates to a compost exhaust system and a control method thereof, in particular to a compost exhaust system and a control method for pumping a negative pressure at the bottom of the compost to generate a negative pressure for ventilation.

In the breeding industry such as pigs and cattle breeding, organic matter such as feces is produced. Such organic matter and bark, leaves, rice husks, bagasse, etc. can be used as raw materials for composting. The above organic matter can be treated to form compost, which can be used for agricultural planting to accelerate plant growth.

It takes time to make the compost to ferment the aforementioned organic substances. If the air inside the compost does not circulate during the fermentation process and the microorganism consumes oxygen to produce anaerobic fermentation, then hydrogen sulfide, methane and other gases will be produced during the fermentation process. Since the efficiency of anaerobic fermentation to produce compost is poor, and hydrogen sulfide, methane, etc. are not available, so now when composting is made, manpower or machinery will be used in the fermentation process to turn the pile, so as to facilitate the air flow inside the compost, so that the microorganisms are The oxygen can be aerobic decomposition. However, when the amount of compost is large, it is not easy to turn the pile, so some operators will first set up a vent line at the place where the compost is placed, so that after the compost is placed, air can be injected into the bottom or inside of the compost to make The inside of the compost can be ventilated to have enough oxygen, which can be used for aerobic fermentation of microorganisms to produce ammonia gas, sulfur dioxide, methyl sulfide, etc., and ammonia gas can also be used as fertilizer for planting.

However, the use of air pumping method to drive the air into the compost still cannot fully replace the air with low oxygen concentration inside the compost, so that the efficiency of composting is still not perfect, and When extracting the internal gas, additional suction system or deodorization system equipment must be installed to reduce the adverse effects of the exhaust gas on the surrounding environment, and the additional system equipment will burden the industry.

In view of this, the conventional methods of composting are indeed still necessary to be improved.

In order to solve the above-mentioned problems, the object of the present invention is to provide a compost exhaust system, which can generate negative pressure inside the compost by pumping, so that the air with higher oxygen content can be automatically replenished into the compost.

The second object of the present invention is to provide a compost exhaust system, which can be provided with different requirements for different positions of the pipe body, or when the pipe body is clogged, it is convenient to replace or clean the pipe body.

Another object of the present invention is to provide a control method for a compost exhaust system, which is used in the above system.

The following directivity or similar terms of the present invention, such as "front", "rear", "upper (top)", "lower (bottom)", "inner", "outer", "side", etc., mainly With reference to the directions of the attached drawings, each directivity or its approximate terms are only used to help explain and understand the embodiments of the present invention, and are not intended to limit the present invention.

The "coupled connection" mentioned in the whole text of the present invention refers to the two devices communicating with each other via electromagnetic coupling technology, such as: using Bluetooth, WI-FI or 4G-LTE wireless communication technology to transmit data, but not This is limited and can be understood by those with ordinary knowledge in the technical field to which the present invention belongs.

A compost exhaust system of the present invention includes: a ventilating module, having a plurality of tube bodies and a gas collecting part, each of the tube bodies is connected to the gas collecting part, each of the tube bodies has a plurality of air holes, The several air holes penetrate the outer peripheral surface and the inside of the several tube bodies, the ventilation module further includes a base, the base There are several slot holes, which can be used for placing the several tube bodies, and the surface of the base is covered with a cover plate, and the cover plate is provided with several through holes to connect the several slot holes; The control part is electrically connected, and the suction part has an inhalation part, and the suction part communicates with the air collection part, so that the suction part evacuates the ventilation module and is discharged by a discharge part.

A control method for a compost exhaust system, including: a measurement step: a parameter is measured by several sensing elements and sent to a control unit, the sensing element is an oxygen content sensor, temperature Sensor or humidity sensor; a judgment step: it is to judge whether the parameter is higher than a threshold value, if judged to be "yes", then the measurement steps of the several sensing elements are performed after a predetermined time, If the judgment is "No", the control unit sends a command to the suction member; a suction step: the suction member starts a suction after receiving a command sent by the control unit.

According to this, the compost exhaust system and its control method of the present invention utilize the ventilation module and the suction member disposed under the compost, and the air with a lower oxygen content at the bottom of the compost by the suction member Pumping out creates a negative pressure at the bottom of the compost, which allows external air to be added to the inside of the compost, so that the oxygen content of the air inside the compost increases, so that the inside of the compost can be ventilated and have enough oxygen for microorganisms to carry out aerobic The fermentation produces ammonia gas, sulfur dioxide, methyl sulfide and other effects. In addition, the several tube bodies can be easily replaced from the slot to replace the several tube bodies, which has the effect of increasing the ventilation efficiency. And, the slot can be an open slot recessed on the surface of the base, which makes it easier to place, replace and clean the slot or the several tubes, and has the effect of improving the convenience of use.

Wherein, the several air holes are distributed in different degrees of density on the outer peripheral surface of each tube body. In this way, the compost can have a more balanced air circulation speed throughout, which has the effect of improving the ventilation efficiency.

Wherein, a filter net is arranged on the outer peripheral surface of the several tube bodies. In this way, the filter screen can block dust particles or impurities from the outside of the filter screen, and has the effect of avoiding clogging of the plurality of air holes.

Wherein, the gas extraction part is connected with a gas treatment part, and the gas treatment part is connected with the discharge part of the gas extraction part. In this way, the gas treatment part can store gas or filter the gas for reuse, which has the effect of reducing pollution.

Wherein, the compost exhaust system is further provided with several sensing elements, the several sensing elements are coupled to a control unit, the control unit is also electrically connected to the control element of the air extractor, and the sensing element is an oxygen content sensor Sensor, temperature sensor or humidity sensor. In this way, the parameter value enables the control unit to determine a threshold value and issue a command to perform the corresponding operation, which has the effect of enhancing user convenience.

Wherein, a condensed water collecting part is further included between the gas collecting part and the suction part, and the condensed water collecting part has a drainage part. In this way, the gas water vapor passing through the condensed water collecting member can be reduced, which has the effect of reducing the corrosion and rust of the water vapor in the air on the suction member.

〔this invention〕

1: Ventilation module

11: Tube body

111: Connection

112: Stomata

12: Gas gathering department

121: Control valve

13: Filter

14: Dock

141: Slot

15: Cover

151: through hole

2: Extractor

21: Control

22: Inhalation

23: Discharge section

24: T-shaped street

25: Gas treatment parts

3: sensing element

31: Control unit

4: Condensate collection

41: Air intake

42: Outlet

43: Drainage Department

C: Compost

S1: Measurement steps

S2: Judgment step

S3: Pumping steps

[Figure 1] A three-dimensional structure diagram of the first preferred embodiment of the present invention.

[Figure 2] A partial schematic perspective view of the first preferred embodiment of the present invention.

[Figure 3] A schematic partial side view of a first preferred embodiment of the present invention.

[Figure 4] A diagram of the use of the first preferred embodiment of the present invention.

[Figure 5] A three-dimensional schematic view of the second preferred embodiment of the present invention.

[Figure 6] A flow chart of the control method of the present invention.

In order to make the above and other objects, features and advantages of the present invention more obvious and easy to understand, the following is a detailed description of preferred embodiments of the present invention, in conjunction with the attached drawings, as follows: Please refer to Figs. 1 and 2, which is the first preferred embodiment of the compost exhaust system of the present invention, and includes a ventilation module 1 and a suction member 2, the suction member 2 and the ventilation module 1 is connected, the pumping element 2 can pump the ventilation module 1.

The ventilating module 1 has a plurality of tube bodies 11 and a gas collecting part 12, the plurality of tube bodies 11 are provided with a connecting part 111 and a plurality of air holes 112. The plurality of pipe bodies 11 may be PVC pipes, etc., and the connection parts 111 of the plurality of pipe bodies 11 may be L-shaped joints, T-shaped joints, or cross-shaped joints, etc., so that each of the pipe bodies 11 is directly connected by the connection part 111 or The gas collecting portion 12 is indirectly connected, and the connecting portion 111 can be disassembled for replacement or cleaning of the plurality of tube bodies 11. The plurality of air holes 112 penetrate the outer peripheral surface and the inside of the plurality of tube bodies 11, so that the inside and outside of the plurality of tube bodies 11 can be communicated by the plurality of air holes 112, and the plurality of air holes 112 can be connected to the outer periphery of each tube body 11 The surfaces are arranged in different densities. The plurality of tubes 11 take the connecting portion 111 as the front end and the other end as the rear end. The arrangement of the plurality of air holes 112 from the front end to the rear end of the plurality of tube bodies 11 can be: Before sparse and then dense, before and after sparse or consistent. The gas collecting part 12 may also be provided with a control valve 121, which can be used to control whether the gas collected by the gas collecting part 12 is discharged. The setting of the ventilation module 1 can be used according to the needs of the user or the occasion, and the ventilation module 1 can be connected and used. In this embodiment, there are two ventilation modules 1, and the two ventilation modules Group 1 has four tubes 11 each.

Please refer to FIG. 3, the outer peripheral surface of the plurality of tube bodies 11 may also be provided with a filter screen 13, which may be a bag-shaped net, so that the filter screen 13 may be sleeved on the plurality of tube bodies 11 Externally, the mesh of the filter 13 may be smaller than the diameter of the plurality of air holes 112. In this way, dust particles or impurities can be blocked outside the filter 13 to prevent the plurality of air holes 112 from being blocked.

Please refer to FIGS. 2, 3 and 4, the ventilating module 1 may further include a base 14, the base 14 is provided with a number of slot holes 141, and the number of slot holes 141 may be recessed on the base 14 An open groove on the surface, or a through hole penetrating through the two end surfaces of the base 14, the groove hole 141 can be used for placing the plurality of tube bodies 11, and the plurality of tube bodies 11 can be easily removed from the groove hole 141 Draw In other words, in this embodiment, the slot 141 is an open slot recessed on the surface of the base 14. The plurality of tube bodies 11 are respectively placed in the slot 141 and covered with a surface on the base 14.盖板15。 15. Cover plate 15. The cover plate 15 is provided with a plurality of through holes 151 so that gas can flow from the outside of the cover plate 15 to the slot 141 through the through holes 151.

The suction member 2 can be a conventional suction pump or vacuum pump, which is not limited in the present invention. The suction member 2 has a control member 21, a suction portion 22, and a discharge portion 23. The control member 21 The suction member 2 is electrically connected to the control member 21 for operating the suction member 2 to open or close. The suction part 22 may be directly or indirectly communicated with the gas collecting part 12. In this embodiment, the suction part 22 is connected to a T-shaped joint 24, and the T-shaped joint 24 is connected to the gas collecting part 12, so that the The air extractor 2 can extract the gas collected by the gas collecting part 12 and let the gas be discharged by the discharge part 23.

The gas extraction element 2 can also be connected to a gas treatment element 25, and the gas treatment element 25 is connected to the discharge part 23 of the gas extraction element 2, so that the gas discharged from the gas extraction element 2 can enter the gas treatment element 25. The gas processing member 25 can store gas or filter the gas before reuse. In this embodiment, the gas processing member 25 can be a container that can hold liquid, and the water gas is placed in the gas processing member 25. The gas extracted by the suction member 2 is introduced into the lime water, so that sulfur dioxide or ammonia gas, such as sulfur oxides or nitrides, is passed through the gas treatment member 25, and the sulfide or nitride is soluble Form liquid fertilizer in lime water to make the gas containing sulfide or nitride available for reuse.

Please refer to FIG. 4, the compost exhaust system of the present invention may further be provided with a plurality of sensing elements 3, the plurality of sensing elements 3 are disposed on a compost C, and the setting method is to sense the several The sensing probe of the element 3 is placed inside the compost C, and the several sensing elements 3 can sense and display a parameter. In this embodiment, for example, but not limited to, the sensing element 3 selects an oxygen content sensor, so that the sensing element 3 can learn the oxygen content parameter in the compost, in addition, the several sensing elements 3 It can also be a temperature sensor, humidity sensor, etc., so that the temperature and humidity parameters can be Learned. In this way, the user can sense the internal parameters of the compost C through the plurality of sensing elements 3, and can determine the fermentation and maturity status of the compost C from the parameters, so as to further take corresponding measures. The sensing element 3 can also be coupled to a control unit 31, so that the control unit 31 can receive the parameters of the sensing element 3, the control unit 31 is electrically connected to the control element 21 of the air extractor 2, and can send a An instruction is given to the control part 21 to control the operation of the suction part 2. The control unit 31 can also set a threshold value, so that the control unit 31 can determine whether the parameter of the sensing element 3 reaches the threshold value, for example, when the oxygen content is lower than the threshold value, the control unit 3 sends a threshold value The command controls the suction member 2.

Referring to FIGS. 1 and 4, according to the foregoing structure, the compost exhaust system of the present invention senses an oxygen content parameter by the sensing element 3 placed inside the compost C, and is controlled by the control unit 31 Receiving the oxygen content parameter to determine whether it is below a threshold value, if it is below the threshold value, the control unit 31 sends a command to the control element 21, the control element 21 activates the pumping element 2 for pumping gas. When the air-extracting member 22 performs air extraction, the air with lower oxygen content at the bottom of the compost C is extracted through the several tube bodies 11 in the slot 141, and the air with lower oxygen content can be extracted from the air The discharge unit 23 discharges or reintroduces the gas treatment element 25 to perform filtration and reuse. The bottom of the compost C generates a negative pressure because the air is drawn out, so that the external air is replenished to the inside, thereby increasing the oxygen content of the air at the bottom of the compost C.

The compost exhaust system of the present invention can set the plurality of tubes 11 according to different requirements of each part of the compost C, which can solve the difference in the height or internal density of the compost C, resulting in gas flowing from the outside of the compost C to the inside The inconsistency of the speed, for example: because the bottom of the compost C of a small height only needs to be filled with less gas, so, you can use the few tubes 11 with sparse pore density; conversely, when more gas needs to be filled When the bottom of the compost C is at a larger height, the tube bodies 11 with denser pore density can be used. In this way, a larger amount of air intake can be caused, so that each part of the compost C can obtain a more balanced air Circulation speed.

In summary, the compost exhaust system of the present invention mainly utilizes the ventilation module and the air extractor to extract air with low oxygen content at the bottom of the compost C, so that the bottom of the compost C generates negative pressure It can make the outside supplement to the inside, so that the oxygen content of the air inside the compost C increases, so that the compost C can increase the oxygen content of the air inside the compost C by means of pumping, so that the inside of the compost can be ventilated and There is enough oxygen for microorganisms to carry out aerobic fermentation to produce ammonia, sulfur dioxide, methyl sulfide and other effects.

Please refer to FIG. 5, which is the second embodiment of the present invention. In this embodiment, the compost exhaust system may further include a condensed water collecting member 4, which may be disposed in the gas collecting part 12 and the suction member 2. The condensed water collecting member 4 may be a closed barrel. The condensed water collecting member 4 is provided with an air inlet 41, an air outlet 42 and a drain 43. The air inlet 41 and the air collection module 1 The gas outlet 42 is connected to the control valve 121, and the drain 43 can be provided on the bottom or bottom of the condensate collecting member 4. When the high temperature and high humidity gas extracted from the bottom of the compost C, when the high temperature and high humidity gas is cooled due to contact with the low temperature gas, condensed water vapor will be generated, which can accumulate and stay after condensation At the bottom of the condensed water collecting member 4, the drain 43 can be used to drain water. Wherein, the drainage part 43 may be provided as a valve, so that the condensed water accumulated in the condensed water collecting member 4 can be discharged or collected by the drainage part 43. When the water vapor condenses, a part of the sulfide or nitride will be dissolved in the water vapor, so that the condensed water discharged from the drainage part 43 can also be introduced into the gas treatment element 24, and the gas The lime water in the treatment member 24 acts to further form liquid fertilizer.

Please refer to FIG. 6, which is a flow chart of the control method of the present invention, which can be applied to the compost exhaust system of the present invention. Please also refer to Figures 1 and 3, the control method is that the ventilation module 1 is connected to the exhaust member 2, and the ventilation module 1 is placed under a compost C, and the compost C A plurality of sensing elements 3 are provided, the plurality of sensing elements 3 are coupled to a control unit 31, the control unit 31 is electrically connected to the extractor 2, and the steps of the control method may include a measuring step Step S1, a judgment step S2 and a pumping step S3.

The measuring step S1 measures a parameter from the sensing elements 3 placed on the compost C, the parameter may be, for example, the oxygen content, and the sensing elements 3 may send the parameter to the control unit 31, to perform the judgment step S2.

The judgment step S2 judges whether the parameter is higher than a threshold value, which is preset in the control unit 31. If the judgment is "Yes", the oxygen content is higher than the threshold value, after a predetermined time, Repeat this measurement step S1 again. If the judgment is "No", the oxygen content is lower than the threshold value, and the pumping step S3 is performed.

In the pumping step S3, when the control unit 31 sends a command to the pumping element 2, the pumping element 2 is activated, so that the air in the compost C whose oxygen content is lower than the threshold value is drawn, and the A negative pressure is formed at the bottom of the compost S, so that the air with an oxygen content higher than the threshold value is replenished from the outside of the compost C to the inside of the compost C by negative pressure, and the effect of ventilation can be achieved.

In summary, the control method of the compost exhaust system of the present invention is mainly to use the ventilation module and the suction member disposed under the compost C, and the oxygen content at the bottom of the compost C by the suction member The lower air is drawn out, which creates a negative pressure at the bottom of the compost C, which can make the outside air supplement to the inside of the compost C, so that the oxygen content of the air inside the compost C increases, so that the inside of the compost C can be ventilated and have enough oxygen , It can be used for aerobic fermentation of microorganisms to produce ammonia gas, sulfur dioxide, methyl sulfide and other effects.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with this art without departing from the spirit and scope of the present invention still makes various changes and modifications to the above-mentioned embodiments. The technical scope of the invention is protected, so the scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

1: Ventilation module

11: Tube body

111: Connection

112: Stomata

12: Gas gathering department

121: Control valve

13: Filter

14: Dock

141: Slot

2: Extractor

21: Control

22: Inhalation

23: Discharge section

24: T-shaped street

25: Gas treatment parts

Claims (7)

A compost exhaust system includes: a ventilating module, having a plurality of tubes and a gas collecting part, each of the tubes is connected to the gas collecting part, each of the tube bodies has a plurality of air holes, and the number The air hole penetrates the outer peripheral surface and inside of the several tube bodies, the ventilation module further includes a base, the base is provided with several slot holes, the slot holes can be used for placing the several tube bodies, and the surface of the base is covered There is a cover plate, the cover plate is provided with a plurality of through holes communicating with the number of slots; and a suction member electrically connected to a control member, the suction member has a suction part, the suction part is connected to the gas collection part The air-extracting member draws air to the ventilation module and is discharged by a discharge part. The compost exhaust system according to claim 1, wherein the plurality of air holes are distributed in different degrees of density on the outer peripheral surface of each tube body. The compost exhaust system according to claim 1, wherein a filter screen is provided on the outer peripheral surface of the several pipe bodies. The compost exhaust system according to claim 1, wherein the suction member is connected to a gas treatment member, and the gas treatment member is connected to the discharge part of the suction member. The compost exhaust system according to claim 1, wherein the compost exhaust system is further provided with a plurality of sensing elements, the sensing element is coupled to a control unit, and the control unit is electrically connected to the control element of the air extractor, the The sensing element is an oxygen content sensor, a temperature sensor or a humidity sensor. As in the compost exhaust system of claim 1, a condensed water collecting part is further included between the gas collecting part and the air extracting part, and the condensed water collecting part has a drainage part. A control method of a compost exhaust system, which uses the compost exhaust system of the above request items 1 to 6, the control method includes: a measuring step: a parameter is measured by several sensing elements and the parameter is sent to A control unit, the sensing element is an oxygen content sensor, a temperature sensor or a humidity sensor; a judging step: judging whether the parameter is higher than a threshold value, if judged to be "yes", the number Pc The sensing element performs the measurement step after a predetermined time. If the judgment is "No", the control unit sends a command to the suction element; an extraction step: the suction element accepts the command sent by the control unit Then start to pump down.

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