阅读说明：本技术 一种动态堆肥精准除臭系统及其方法 (Dynamic composting accurate deodorization system and method thereof ) 是由 朱羽廷 吴宜全 夏艺珺 纪威 施炜 于 2021-03-23 设计创作，主要内容包括：本发明涉及一种动态堆肥精准除臭系统及其方法,该系统包括可沿发酵槽壁水平移动的工作机架,工作机架上安装有翻抛小车,翻抛小车连接安装有链板式翻抛部件,工作机架的上方设置有集气罩,集气罩内的上部安装有管式轴流通风机,管式轴流通风机连接有延伸至集气罩外部的连接管,发酵槽壁内部设置有臭气收集廊道,臭气收集廊道上等间距地设置有多个用于对接连接管的短管,管式轴流通风机还连接有用于控制管式轴流通风机工作状态的控制器。与现有技术相比,本发明能够在翻堆时定向收集翻堆产生的大量气体,并直接就近输送至臭气收集廊道,以提高臭气的收集效率、改善车间环境,同时降低臭气收集过程的电力消耗。(The invention relates to a dynamic composting accurate deodorization system and a method thereof, the system comprises a working frame which can horizontally move along a fermentation tank wall, a turning trolley is arranged on the working frame, the turning trolley is connected with a chain plate type turning part, a gas collecting hood is arranged above the working frame, a tubular axial-flow fan is arranged at the upper part in the gas collecting hood, the tubular axial-flow fan is connected with a connecting pipe which extends to the outside of the gas collecting hood, an odor collecting corridor is arranged in the fermentation tank wall, a plurality of short pipes which are used for butting the connecting pipes are arranged at equal intervals in the odor collecting corridor, and the tubular axial-flow fan is also connected with a controller which is used for controlling the working state of the tubular axial-flow fan. Compared with the prior art, the invention can directionally collect a large amount of gas generated by pile turning during pile turning and directly convey the gas to the odor collecting gallery nearby so as to improve the odor collecting efficiency, improve the workshop environment and reduce the power consumption in the odor collecting process.)

1. A dynamic compost accurate deodorization system is characterized by comprising a working rack (1) which can horizontally move along the wall of a fermentation tank (6), the working stand (1) is provided with a turning trolley (2), the turning trolley (2) is connected with a chain plate type turning part (3), a gas-collecting hood (4) is arranged above the working rack (1), a tubular axial-flow fan (5) is arranged at the upper part in the gas-collecting hood (4), the tubular axial-flow fan (5) is connected with a connecting pipe which extends to the outside of the gas-collecting hood (4), an odor collection gallery (7) is arranged in the wall of the fermentation tank (6), a plurality of short pipes (8) for butt joint of the connecting pipes are arranged on the odor collection gallery (7) at equal intervals, the tubular axial-flow fan (5) is also connected with a controller used for controlling the working state of the tubular axial-flow fan (5).

2. A dynamic composting accurate deodorising system as claimed in claim 1, characterised in that the walls of the fermentation tank (6) are provided with rails (9) and the bottom of the working frame (1) is fitted with rollers.

3. A dynamic composting accurate deodorization system as claimed in claim 2, characterized in that said track (9) is provided with a plurality of telescopic stoppers (10) at equal intervals, said telescopic stoppers (10) are provided with pressure sensors for detecting whether the telescopic stoppers (10) contact with the rollers, said telescopic stoppers (10) and said pressure sensors are both connected to the controller, and when the pressure sensors detect that the rollers contact with the telescopic stoppers (10), the controller controls the tubular axial-flow fan (5) to start.

4. A dynamic composting accurate deodorization system as claimed in claim 1, wherein an odor concentration sensor is installed in the gas collection hood (4), the odor concentration sensor is connected with the controller, and when the odor concentration sensor detects that the odor concentration in the gas collection hood (4) is less than or equal to a preset concentration threshold value, the controller controls the tubular axial-flow fan (5) to be shut down.

5. A dynamic composting accurate deodorization system as claimed in claim 1, wherein the connecting pipe comprises a hose (13) and a stainless steel pipe (14) which are connected in sequence, the hose (13) is connected with the tubular axial-flow fan (5), the upper end of the stainless steel pipe (14) is sleeved with a clamp (15) which can move up and down, the clamp (15) is connected with a driving motor (16), the driving motor (16) is connected with a controller, and the controller controls the working state of the driving motor (16), so as to realize the up and down movement of the clamp (15).

6. A dynamic composting accurate deodorising system as claimed in claim 5, characterised in that the top opening of the short pipe (8) is provided with a rubber pad (17) and the bottom opening of the stainless steel pipe (14) is fitted with a rubber ring (18).

7. A dynamic composting accurate deodorising system according to claim 1, characterised in that the odour collection corridor (7) is internally equipped with chemical washing deodorising means.

8. A dynamic composting accurate deodorisation system as claimed in claim 1, characterised in that the outside of the fermenter (6) wall is provided with a blower (19), said blower (19) being in particular a negative pressure suction blower (19), the output of said blower (19) being connected to the odour collection corridor (7).

9. A dynamic composting accurate deodorisation system as claimed in claim 8 characterised in that the output of the air blower (19) is connected to the odour collection corridor (7) through an odour collection duct (20) embedded in the bottom of the fermentation tank (6).

10. A deodorizing method using the dynamic composting accurate deodorizing system according to claim 1, comprising the steps of:

s1, horizontally moving the turning trolley along the wall of the fermentation tank by the working frame, continuously operating the chain plate type turning part for turning, and temporarily storing the odor and the water vapor generated in the turning process into the gas collecting hood;

s2, the working frame stops moving after moving to a designated position, the connecting pipe is in butt joint with the short pipe, and the controller controls the starting of the tubular axial flow fan so as to send the odor and the water vapor stored in the gas collecting hood into the odor collecting corridor;

and S3, after the tubular axial flow fan is started to operate for a set time, or the concentration of the odor in the current gas collecting hood is reduced to be below a concentration threshold value, the controller controls the tubular axial flow fan to be shut down, the connecting pipe is disconnected with the short pipe, the working frame continues to drive the turning trolley to horizontally move along the wall of the fermentation tank until the working frame moves to the next specified position, the movement is suspended, and the step S2 is returned to.

Technical Field

The invention relates to the technical field of sludge compost treatment, in particular to a dynamic compost accurate deodorization system and a method thereof.

Background

The aerobic composting of sludge is a sludge treatment technology widely applied at present, can convert sludge into harmless nutrient substances, wherein the fermentation tank type dynamic composting has the advantages of simple structure, good fermentation effect and suitability for mass sludge treatment, and the regular pile turning is an essential procedure for achieving better oxygen contact effect.

Dynamic composting of fermentation tanks is generally carried out by adopting a chain plate type turner to dynamically turn piles, and a large amount of odor and steam can escape in the pile turning process, so that the problems of odor and steam accumulation are caused in composting workshops. Traditional mud aerobic composting workshop needs to take a breath and concentrate deodorization to the workshop all day, and the electric power of consumption can account for the whole factory and consume more than half of total electric power, in addition, because the workshop volume is often great, the foul smell loss, and the deodorization effect of taking a breath is forced not good, and the foul smell collection efficiency is lower.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a dynamic compost accurate deodorization system and a method thereof so as to improve the odor collection efficiency of dynamic compost in a fermentation tank and reduce the power consumption in the odor collection process.

The purpose of the invention can be realized by the following technical scheme: the utility model provides an accurate deodorization system of developments compost, includes the work frame that can follow fermentation cell wall horizontal migration, install in the work frame and turn over the dolly, turn over the dolly and connect and install the chain plate formula and turn over the part of throwing, the top of work frame is provided with the discharge hood, tubular axial fan is installed on upper portion in the discharge hood, tubular axial fan is connected with the connecting pipe that extends to the discharge hood outside, the inside foul smell that is provided with of fermentation cell wall is collected the corridor, the foul smell is collected the corridor and is provided with a plurality of nozzle stub that are used for docking the connecting pipe equidistantly, tubular axial fan still is connected with the controller that is used for controlling tubular axial fan operating condition.

Furthermore, a track is arranged on the wall of the fermentation tank, and rollers are installed at the bottom of the working rack.

Further, be provided with a plurality of flexible dogs on the track equidistantly, install on the flexible dog and be used for detecting the pressure sensor whether flexible dog contacts with the gyro wheel, flexible dog and pressure sensor all are connected to the controller, detect the gyro wheel and contact the back with flexible dog when pressure sensor, then controller control tubular axial fan starts.

Further, install the foul smell concentration sensor in the gas collecting channel, the foul smell concentration sensor is connected with the controller, and when the foul smell concentration sensor detects that foul smell concentration is less than or equal to predetermined concentration threshold value in the gas collecting channel, the controller control tubular axial-flow fan shuts down.

Further, the odor concentration sensor includes a hydrogen sulfide concentration sensor and an ammonia gas concentration sensor.

Further, the connecting pipe is including the hose and the nonrust steel pipe that connect gradually, the hose is connected with tubular axial fan, the pot head of nonrust steel pipe is equipped with the anchor clamps that can reciprocate, anchor clamps are connected with driving motor, driving motor is connected with the controller, by controller control driving motor's operating condition to realize reciprocating of anchor clamps.

Furthermore, a rubber pad is arranged at the top opening of the short pipe, and a rubber ring is sleeved at the bottom opening of the stainless steel pipe.

Further, a chemical washing and deodorizing device is arranged inside the odor collecting corridor.

Further, the outside of fermentation tank wall is provided with the air-blower, the air-blower specifically is negative pressure suction air-blower, the output and the foul smell collection corridor of air-blower are connected.

Furthermore, the output end of the air blower is connected with the odor collecting gallery through an odor collecting pipe buried at the bottom of the fermentation tank.

A dynamic compost accurate deodorization method comprises the following steps:

s1, horizontally moving the turning trolley along the wall of the fermentation tank by the working frame, continuously operating the chain plate type turning part for turning, and temporarily storing the odor and the water vapor generated in the turning process into the gas collecting hood;

s2, the working frame stops moving after moving to a designated position, the connecting pipe is in butt joint with the short pipe, and the controller controls the starting of the tubular axial flow fan so as to send the odor and the water vapor stored in the gas collecting hood into the odor collecting corridor;

and S3, after the tubular axial flow fan is started to operate for a set time, or the concentration of the odor in the current gas collecting hood is reduced to be below a concentration threshold value, the controller controls the tubular axial flow fan to be shut down, the connecting pipe is disconnected with the short pipe, the working frame continues to drive the turning trolley to horizontally move along the wall of the fermentation tank until the working frame moves to the next specified position, the movement is suspended, and the step S2 is returned to.

Compared with the prior art, the invention has the following advantages:

firstly, the working frame capable of horizontally moving along the wall of the fermentation tank is arranged, the turning trolley and the gas collecting hood are arranged on the working frame, so that odor and water vapor generated in the turning process can be contained in the gas collecting hood, and after the working frame moves to each designated position, the odor stored in the gas collecting hood can be directly sent into the odor collecting corridor by combining the tubular axial flow fan and the connecting pipe arranged in the gas collecting hood and butting the short pipes of the odor collecting corridor in the fermentation tank wall, so that the odor collecting efficiency is improved, forced ventilation and centralized deodorization are not needed all day, and the power consumption in the odor collecting process is greatly reduced.

The telescopic stop blocks are arranged on the tracks of the fermentation tank wall and are kept in an extended blocking state in a normal state, so that the working rack can stop after moving to a specified position, the controller learns the contact information of the working rack roller and the telescopic stop blocks detected by the pressure sensor by virtue of the pressure sensor arranged on the telescopic stop blocks, the butt joint of a subsequent connecting pipe and a short pipe is controlled, the starting of the tubular axial flow fan is controlled, and the telescopic stop blocks are switched to a retracted state after the tubular axial flow fan is stopped, so that the working rack can continue to move, the accurate stopping of the turning trolley is ensured, and the odor collection efficiency is further improved.

The outer side of the fermentation tank wall is provided with the air blower for negative pressure suction oxygen supply, the output end of the air blower is connected with the odor collecting gallery through the odor collecting pipe embedded at the bottom of the fermentation tank, the air blower is used for sucking the gas on the fermentation stack from the top of the stack, and meanwhile, part of the odor, water vapor and other gases generated in the fermentation process are sent into the odor collecting gallery through the embedded odor collecting pipe, so that the negative pressure environment in the gas collecting hood is maintained, the odor stored in the gas collecting hood is ensured not to be easily diffused, and powerful conditions are provided for the subsequent strengthened extraction of the odor in the gas collecting hood.

According to the invention, the odor concentration sensor is arranged in the gas collecting hood, and when the odor concentration sensor detects that the odor concentration in the gas collecting hood meets the preset condition, the controller controls the tubular axial flow fan to be turned off, so that the reliability of odor collection is ensured.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic view of the butt joint of the connecting pipe and the short pipe in the present invention;

the notation in the figure is: 1. the device comprises a working rack, 2, a turning and throwing trolley, 3, a chain plate type turning and throwing component, 4, a gas collecting hood, 5, a tubular axial flow fan, 6, a fermentation tank, 7, an odor collecting gallery, 8, short pipes, 9, a track, 10, a telescopic stop block, 11, a hydrogen sulfide concentration sensor, 12, an ammonia gas concentration sensor, 13, a hose, 14, a stainless steel pipe, 15, a clamp, 16, a driving motor, 17, a rubber pad, 18, a rubber ring, 19, a blower, 20 and an odor collecting pipe.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

Examples

As shown in figures 1 to 3, a dynamic composting accurate deodorization system comprises a working frame 1 which can horizontally move along the wall of a fermentation tank 6, a turning trolley 2 is arranged on the working frame 1, the turning trolley 2 is connected with a chain plate type turning part 3, a cable tray of the turning trolley is arranged on one side of the working frame 1, a gas collecting hood 4 is arranged above the working frame 1, a polycarbonate transparent hood is selected as the gas collecting hood 4 in the embodiment, a tubular axial flow fan 5 is arranged at the upper part in the gas collecting hood 4 through a fan base, a variable frequency tubular axial flow fan is selected in the embodiment, the tubular axial flow fan 5 is connected with a connecting pipe which extends to the outside of the gas collecting hood 4, an odor collecting gallery 7 is arranged in the wall of the fermentation tank 6, a plurality of short pipes 8 which are used for butt joint of the connecting pipe are arranged at equal intervals in the odor collecting gallery 7, and a controller which is used for controlling the working state of the tubular axial flow, the outer side of the wall of the fermentation tank 6 is provided with a blower 19, the blower 19 is a negative pressure suction blower, and the output end of the blower 19 is connected with the odor collecting gallery 7 through an odor collecting pipe 20 buried at the bottom of the fermentation tank 6.

In order to realize the reliable movement of the working rack 1, the wall of the fermentation tank 6 is provided with a track 9, and the bottom of the working rack 1 is provided with a roller. For realizing accurate berth of work frame 1, be provided with a plurality of flexible dogs 10 on the track 9 equidistantly, install on the flexible dog 10 and be used for detecting flexible dog 10 with the pressure sensor of gyro wheel contact, flexible dog 10 and pressure sensor all are connected to the controller, detect the gyro wheel and contact the back with flexible dog 10 when pressure sensor, then the controller at first control connection pipe and 8 docks of nozzle stub, later control tubular axial-flow fan 5 starts.

For guaranteeing that the foul smell in the gas collecting channel 4 can be reliably extracted to foul smell collection corridor 7, in order to guarantee the deodorization effect, on the one hand can be through directly setting for tubular axial-flow fan 5's operating duration and amount of wind, on the other hand can also be through installing foul smell concentration sensor in gas collecting channel 4, be connected foul smell concentration sensor and controller, the foul smell concentration that utilizes foul smell concentration sensor to detect, with the operating duration and the amount of wind of real-time adjustment tubular axial-flow fan 5, when foul smell concentration sensor detects foul smell concentration and is less than or equal to predetermined concentration threshold value in the gas collecting channel 4, controller control tubular axial-flow fan 5 shuts down. In the present embodiment, the odor concentration sensor includes a hydrogen sulfide concentration sensor 11 and an ammonia gas concentration sensor 12.

The connecting pipe comprises a hose 13 and a stainless steel pipe 14 which are sequentially connected, the hose 13 is connected with the tubular axial-flow fan 5, a clamp 15 capable of moving up and down is sleeved at the upper end of the stainless steel pipe 14, the clamp 15 is connected with a driving motor 16, the driving motor 16 is connected with a controller, and the controller controls the working state of the driving motor 16, so that the clamp 15 can move up and down. The top opening of the short pipe 8 is provided with a rubber pad 17, and the bottom opening of the stainless steel pipe 14 is sleeved with a rubber ring 18.

In addition, 7 inside chemistry washing deodorizing device that still can install of corridor are collected to the foul smell to further promote the deodorization effect, for example establish twice spray system in corridor 7 is collected to the foul smell, through mass transfer and the chemical reaction process of washing process, get rid of foul smell and VOCs etc. realize the high-efficient utilization in space: the first stage is strong acid substances such as sulfuric acid and the like to remove ammonia and amines containing N-type odor-causing components; the second stage uses caustic soda or sodium hypochlorite solution to remove S-containing acidic substances such as hydrogen sulfide and R-SH in the odor, and the spraying system can be opened for use according to actual needs. According to the invention, the odor collecting gallery 7 and the chemical spraying deodorization device are pre-buried in the partition wall of the fermentation tank 6, so that the occupied area can be effectively saved.

The above system is applied to practice, and the specific deodorization process comprises the following steps:

s1, the working rack 1 drives the turning trolley 2 to horizontally move along the wall of the fermentation tank 6, meanwhile, the chain plate type turning part 3 continuously operates to turn, the turning part 3 can continuously grab materials in the fermentation tank 6 and obliquely conveys the materials to the rear part of the working rack 1 to fall, the falling materials are piled again, odor and steam generated in the turning process are temporarily stored in the gas collecting hood 4, in order to ensure that the gases in the gas collecting hood 4 are not easy to diffuse, a blower 19 outside the fermentation tank 6 adopts negative pressure suction oxygen supply to suck the gases on the fermentation pile from the top of the pile, meanwhile, part of the gases such as the odor and the steam generated in the fermentation process are conveyed into the odor collecting gallery 7 through the pre-embedded odor collecting pipe 20 to maintain the negative pressure environment in the gas collecting hood 4 and provide conditions for the subsequent reinforced extraction of the waste gases in the gas collecting hood 4;

s2, the work rack 1 stops moving after moving to a designated position, the connecting pipe is in butt joint with the short pipe 8, the controller controls the tubular axial flow fan 5 to start so as to send the odor and the water vapor stored in the gas collecting hood 4 into the odor collecting gallery 7, as the telescopic stop blocks 10 are arranged on the track 9 at certain intervals, the telescopic stop blocks 10 are provided with pressure sensing parts and can trigger the following connecting pipe to be in butt joint with the short pipe 8 after being in contact with the roller, the axial flow fan 5 starts air suction action, the telescopic stop blocks 10 are generally in an extending blocking state and can block the work rack 1 from continuing to move, and accurate parking of the work rack 1 is realized so as to facilitate the butt joint of the stainless steel pipe 14 on the turner and the short pipe 8 on the fermentation tank 6, after the tubular axial flow fan 5 finishes exhaust action, the telescopic stop blocks 10 can be switched to a retracting state and do not block the work;

s3, after the tubular axial flow fan 5 is started to operate for a set time, or the concentration of the odor in the current gas collecting hood 4 is reduced to be below the concentration threshold, the controller controls the tubular axial flow fan 5 to be shut down, the connecting pipe is disconnected with the short pipe 8, the working rack 1 continues to drive the turning trolley 2 to horizontally move along the wall of the fermentation tank 6 until the turning trolley moves to the next designated position, the movement is suspended, and the step S2 is executed.

When the stainless steel tube 14 is in butt joint with the short tube 8, the controller controls the driving motor 16 to start, the clamp 15 is driven to clamp the stainless steel tube 14 and move downwards until the stainless steel tube 14 compresses the short tube 8, the rubber ring 18 is tightly attached to the rubber pad 17, after the tubular axial flow fan 5 is turned off, the clamp 15 controls the stainless steel tube 14 to move upwards to be in butt joint with and separated from the short tube 8, and the telescopic stop block 10 also retracts.

In this embodiment, when both the odor concentrations detected by the hydrogen sulfide concentration sensor 11 and the ammonia gas concentration sensor 12 are greater than the set concentration threshold value 1, the tubular axial flow fan 5 is started, and the larger the concentration is, the larger the air volume of the tubular axial flow fan 5 is. When the concentration threshold values of the two sensors are lower than the set concentration threshold value 1, the tubular axial-flow fan 5 is turned off.

In conclusion, the gas collecting hood and the exhaust equipment (namely the tubular axial flow fan 5) are added to the chain plate type turning machine for the groove type dynamic composting, so that odor generated in the turning process can be directionally exhausted; and through the automatic butt joint and the disconnection of the tank wall fixed odor pipe (namely the short pipe 8) and the airborne mobile odor pipe (namely the connecting pipe), the odor in the gas collecting hood can be simply and reliably sent into the odor collecting gallery; according to the invention, the chain plate type turner is set to run to the preset position so as to control the automatic start and stop of the exhaust of the tubular axial flow fan, and the extraction time and the air volume can be automatically fed back and adjusted according to the odor concentration, so that the odor collection efficiency is ensured, and the deodorization effect is improved.