CN111056872B - Odor collecting system for dynamic tunnel type fermentation bin - Google Patents
Odor collecting system for dynamic tunnel type fermentation bin Download PDFInfo
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- CN111056872B CN111056872B CN201911264687.9A CN201911264687A CN111056872B CN 111056872 B CN111056872 B CN 111056872B CN 201911264687 A CN201911264687 A CN 201911264687A CN 111056872 B CN111056872 B CN 111056872B
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Abstract
The invention discloses an odor collecting system for a dynamic tunnel type fermentation bin, which can realize the efficient collection of odor of the dynamic tunnel type fermentation bin under the condition of not increasing or even reducing the installed power of a fan. The fermentation chamber is in a non-aeration/non-pile-turning state, and the odor collecting port in the chamber is opened intermittently in sequence corresponding to the gate valve and the fan; in the aeration state of the fermentation chamber, opening an odor collecting opening above and near the aeration section corresponding to a gate valve and a fan; the fermentation chamber is in a pile turning state, and odor collecting ports above and near the pile turning position are opened to correspond to the gate valve and the fan. Such a system comprises: the device comprises a collecting port 1, a collecting transverse pipe 2, a gate valve 3, a collecting main pipe 4, an induced draft fan 5 and the like.
Description
Technical Field
The invention relates to an odor collecting system for a dynamic tunnel type fermentation bin. More specifically: relates to an odor collecting system which realizes the efficient collection of odor in a dynamic tunnel type fermentation cabin by a unique collecting device and a working mode in the aerobic composting process of the dynamic tunnel cabin under the condition of not increasing or even reducing the installed power of a fan.
Background
A large amount of odor is generated in the aerobic composting process, the odor components mainly comprise ammonia gas, hydrogen sulfide, VOC and the like and a large amount of water vapor, and if the odor components are not collected and treated, secondary pollution is caused to the surrounding environment, the composting system equipment and related building structures are corroded, and the occupational health safety of operators is threatened.
The dynamic tunnel type fermentation bin is a new aerobic composting process bin type, the shape of the whole bin body is similar to that of a rectangular pipeline, a feeding end and a discharging end are communicated with the atmosphere, pile turning equipment walks from the discharging end to the feeding end and turns piles, and aeration devices are arranged at the bottom of the fermentation bin along the length direction of the fermentation bin in a segmented mode, so that segmented time-sharing aeration can be achieved. No collecting pipeline is arranged in the original design of the dynamic tunnel type fermentation bin, and the traditional odor collecting port is arranged outside the discharging end to control odor.
In practical application, when the tunnel type fermentation bin is in a non-stack-turning state, the odor discharge capacity is small, and the original design is basically feasible. When tunnel type fermentation storehouse was in when turning over the heap state, along with turning over the operation of heap equipment, the heap body turned over a large amount of foul smell of heap position and supersaturated steam and spills over and spread in whole tunnel storehouse upper portion to form the disperse state at the bin opening, this kind of condition brings following problem:
(1) causing serious corrosion of the equipment in the bin and the bin body structure.
(2) Under the condition of the power of a given deodorizing fan, the odor at the bin mouth cannot be effectively collected, so that the overflowing secondary pollution is caused; if the odor is effectively collected, the power of the collecting fan is increased by multiple times.
In later stage tunnel type fermentation storehouse was used, adopt traditional ventilation professional design, set up the foul smell collection pipeline in fermentation storehouse top along tunnel storehouse length direction to set up a plurality of foul smell collection mouths in foul smell collection pipeline below, alleviated interior equipment of storehouse and storehouse body structure corrosion problem, nevertheless have following problem:
(1) the design capacity of the deodorization fan corresponding to each tunnel type fermentation bin must be set according to the maximum load-turning state.
(2) During aeration, the odor collecting system is required to be fully opened, and the aeration device cannot be used for segmented time-sharing aeration.
(3) Due to the limitation of the diameter or width of the collecting pipeline, the ratio of the width dimension of the odor collecting opening bin to the width of the fermentation bin is smaller, and the collecting effect is poor.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide an odor collecting system for a dynamic tunnel-type fermentation chamber, which can solve the main problem existing in the aspect of odor collection of the dynamic tunnel-type fermentation chamber.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
provided is an odor collecting system for a dynamic tunnel-type fermentation tank, comprising: the collection mouth, collect violently pipe, slide valve, collection main, draught fan etc.. Taking n adjacent fermentation bins as a unit, wherein n is 1-20; the top of each fermentation bin is provided with m groups of odor collecting devices, wherein m is 1-100, each group of odor collecting devices is provided with 1 collecting port correspondingly in each fermentation bin in the unit, each group of odor collecting devices is provided with n collecting ports, and each fermentation bin is provided with m collecting ports; collecting transverse pipes which are perpendicular to the length direction of the fermentation bin and are independently arranged are correspondingly arranged above the collecting ports, n collecting transverse pipes are arranged on each odor collecting device, and are finally connected into the collecting main pipes, and gate valves are arranged at the connecting positions; the collection main pipe is finally connected into an air inlet of the draught fan, and an air outlet of the draught fan is connected with the terminal deodorization system through a pipeline. Under the operating state of the aerobic composting process of the dynamic tunnel type fermentation bin, the system synergistically finishes the odor collection process under the states of non-aeration/non-pile turning, aeration and pile turning, and achieves the following purposes: (1) the working load of a plurality of deodorization induced draft fans corresponding to each tunnel type fermentation bin can be flexibly set according to the state, and the work load comprises a corresponding segmented time-sharing aeration state and the worst turning state, so that high efficiency and energy conservation are realized; (2) the width dimension of the odor collecting port bin is matched with the width of the fermentation bin, so that the collecting effect is improved.
Wherein, the fermentation chamber is in a non-aeration/non-pile-turning state, and m odor collecting openings in the chamber are opened intermittently in sequence corresponding to the gate valve and the fan, so as to realize and keep the fermentation chamber in a micro-negative pressure state.
Wherein, the fermentation chamber is opened with the odor collecting port above and near the aeration section corresponding to the gate valve and the fan under the aeration state, so as to realize and maintain the fermentation chamber in a micro-negative pressure state, and the operation mode under the non-aeration and non-pile-turning state is recovered until the aeration is finished.
Wherein, the fermentation chamber is in a pile turning state, the odor collecting port above and near the pile turning position is opened, the fermentation chamber is in a micro negative pressure state corresponding to the gate valve and the fan, and the operation mode under the non-aeration and non-pile turning state is recovered until the pile turning is finished.
Wherein, above-mentioned collection mouth is the nonstandard processing part of big end down's rectangle horn mouth shape, collects the mouth and violently manages section size phase-match at fermentation storehouse length direction size and collection, collects mouth perpendicular to fermentation storehouse length direction size and fermentation storehouse section width size phase-match.
The collecting transverse pipes are rectangular or circular cross-section pipelines, the pipe length of each group of n collecting transverse pipes corresponds to 1 time, 2 times, … … times and n times of the cross-section width of the fermentation bin respectively, the cross-section height of each collecting transverse pipe is matched with the position difference of the top plate of the fermentation bin and the highest point of the pile turning equipment, and the cross-section width of each collecting transverse pipe is calculated through economic air flow rate and the height of the cross-section width.
Wherein, the opening and closing of the gate valve determines whether the corresponding fermentation chamber odor collecting system works, and the gate valve or other devices with similar functions can be adopted.
Wherein, above-mentioned collection dry tube is violently managed perpendicularly with the collection, collects the dry tube section size and violently manages section size fan induced air volume phase-match with the collection, collects dry tube length and violently manages to insert the phase-match respectively with every group n collection.
Wherein, the induced draft fan is a centrifugal fan or similar functional equipment, and the capacity is matched with the number m of odor collecting device groups in each unit, the effective volume of the fermentation bin and the process parameters of compost aeration and turning.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention, and in which:
FIG. 1 shows a schematic plan view of an odor collection system for a dynamic tunnel fermenter according to the present invention;
FIG. 2 shows a schematic cross-sectional view of an odor collection system for a dynamic tunnel-type fermentation tank of the present invention according to an embodiment of the present invention;
wherein: firstly, a collection port; collecting the transverse tubes; a gate valve; collecting the dry pipe; and fifthly, inducing the draught fan.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 and 2, an odor collecting system for a dynamic tunnel type fermentation chamber comprises a collecting port 1, a collecting horizontal pipe 2, a gate valve 3, a collecting main pipe 4, an induced draft fan 5 and the like.
Taking n adjacent fermentation bins as a unit, wherein n is 1-20; the top of each fermentation bin is provided with m groups of odor collecting devices, wherein m is 1-100, each group of odor collecting devices is provided with 1 collecting port correspondingly in each fermentation bin in the unit, each group of odor collecting devices is provided with n collecting ports, and each fermentation bin is provided with m collecting ports; collecting transverse pipes which are perpendicular to the length direction of the fermentation bin and are independently arranged are correspondingly arranged above the collecting ports, n collecting transverse pipes are arranged on each odor collecting device, and are finally connected into the collecting main pipes, and gate valves are arranged at the connecting positions; the collection main pipe is finally connected into an air inlet of the draught fan, and an air outlet of the draught fan is connected with the terminal deodorization system through a pipeline.
The fermentation bin is in a non-aeration/non-pile-turning state, and m odor collecting openings in the bin are opened intermittently in sequence corresponding to the gate valve and the fan, so that the fermentation bin is in a micro-negative pressure state.
And (3) opening the odor collecting ports above and near the aeration section of the fermentation bin in an aeration state corresponding to the gate valve and the fan to realize and maintain the fermentation bin in a micro-negative pressure state until the aeration is finished and recovering the operation mode in a non-aeration and non-pile-turning state.
And (3) when the fermentation bin is in a pile turning state, opening odor collecting ports above and near the pile turning position, corresponding to a gate valve and a fan, realizing and maintaining the fermentation bin in a micro-negative pressure state until pile turning is finished, and recovering the operation mode under a non-aeration and non-pile turning state.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
under the operating state of the aerobic composting process of the dynamic tunnel type fermentation bin, the system synergistically finishes the odor collection process under the states of non-aeration/non-pile turning, aeration and pile turning, and achieves the following purposes: (1) the working load of a plurality of deodorization induced draft fans corresponding to each tunnel type fermentation bin can be flexibly set according to the state, and the work load comprises a corresponding segmented time-sharing aeration state and the worst turning state, so that high efficiency and energy conservation are realized; (2) the width dimension of the odor collecting port bin is matched with the width of the fermentation bin, so that the collecting effect is improved.
It should be apparent to those skilled in the art that the above-described subsystems or steps of the present invention can be implemented by using pipes, fluid conveying equipment, general instrument control systems, and the like, and they can be all integrated in one system or integrated in a plurality of subsystems respectively to form an item. Thus, the present invention is not limited to any particular combination of subsystems.
The above description is of the preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An odor collection system for a dynamic tunnel-type fermentation chamber, comprising: the device comprises a collecting port, a collecting transverse pipe, a gate valve, a collecting main pipe, an induced draft fan and the like, wherein n adjacent fermentation bins are used as a unit, and n is 1-20; the top of each fermentation bin is provided with m groups of odor collecting devices, wherein m is 1-100, each group of odor collecting devices is provided with 1 collecting port in each fermentation bin in the unit correspondingly, each group of odor collecting devices is provided with n collecting ports, and each fermentation bin is provided with m collecting ports; collecting transverse pipes which are perpendicular to the length direction of the fermentation bin and are independently arranged are correspondingly arranged above the collecting ports, n collecting transverse pipes are arranged on each odor collecting device, and are finally connected into the collecting main pipes, and gate valves are arranged at the connecting positions; the collection main pipe is finally connected into an air inlet of an induced draft fan, and an air outlet of the induced draft fan is connected with a terminal deodorization system through a pipeline; the fermentation bin is in a non-aeration/non-pile-turning state, and m odor collecting openings in the bin are opened intermittently in sequence corresponding to the gate valve and the fan, so that the fermentation bin is in a micro-negative pressure state; opening an odor collecting port above and near the aeration section of the fermentation bin in an aeration state corresponding to a gate valve and a fan to realize and maintain the fermentation bin in a micro-negative pressure state until the aeration is finished and recovering the operation mode in a non-aeration and non-pile-turning state; and (3) when the fermentation bin is in a pile turning state, opening odor collecting ports above and near the pile turning position, corresponding to a gate valve and a fan, realizing and maintaining the fermentation bin in a micro-negative pressure state until pile turning is finished, and recovering the operation mode under a non-aeration and non-pile turning state.
2. The odor collection system for the dynamic tunnel-type fermentation chamber as claimed in claim 1, wherein the collection port is a non-standard processing part with a shape of a rectangular bell-mouthed shape with a small upper part and a large lower part, the size of the collection port in the length direction of the fermentation chamber is matched with the size of the cross section of the collection cross pipe, and the size of the collection port in the direction perpendicular to the length direction of the fermentation chamber is matched with the size of the width of the cross section of the fermentation chamber.
3. The odor collection system for the dynamic tunnel-type fermentation bin as claimed in claim 1, wherein the collection horizontal pipes are rectangular or circular cross-section pipes, the length of each group of n collection horizontal pipes corresponds to 1, 2, … … and n times of the cross-section width of the fermentation bin respectively, the cross-section height of the collection horizontal pipes is matched with the difference between the top plate of the fermentation bin and the highest point of the pile-turning device, and the cross-section width of the collection horizontal pipes is calculated by the economic air flow rate and the height of the collection horizontal pipes.
4. The odor collecting system for the dynamic tunnel-type fermentation chamber as claimed in claim 1, wherein the gate valve is opened or closed to determine whether the odor collecting system of the corresponding fermentation chamber is working or not, and the gate valve or other devices with similar functions can be used.
5. The odor collection system for the dynamic tunnel-type fermentation chamber as claimed in claim 1, wherein the collection trunk is perpendicular to the collection horizontal pipes, the cross-sectional dimension of the collection trunk is matched with the cross-sectional dimension of the collection horizontal pipes, the induced draft of the fan is matched, and the length of the collection trunk is matched with the length of each group of n collection horizontal pipes.
6. The odor collection system for the dynamic tunnel-type fermentation chamber as claimed in claim 1, wherein the induced draft fan is a centrifugal fan or a similar functional device, and the capacity of the induced draft fan is matched with the number m of odor collection devices in each unit, the effective volume of the fermentation chamber, the compost aeration and the compost turning process parameters.
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| CN111548213A (en) * | 2020-05-27 | 2020-08-18 | 机科发展科技股份有限公司 | Flexible odor collecting system for dynamic tunnel type fermentation bin |
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