CN216935478U

CN216935478U - Fertilizer factory fermentation workshop deodorization system

Info

Publication number: CN216935478U
Application number: CN202120951420.3U
Authority: CN
Inventors: 苗万有; 田涛; 王庆华; 梁万和
Original assignee: Beijing Fengtai Min'an Biotechnology Co ltd
Current assignee: Beijing Fengtai Min'an Biotechnology Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-07-12
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a deodorization system for a fermentation workshop of an organic fertilizer plant, which comprises a waste gas collecting system and a deodorization system, wherein the deodorization system comprises a gas inlet, a gas outlet, a circulating water tank, a spraying system, a physical adsorption padding layer and a biological filter material layer, wherein the gas inlet, the physical adsorption padding layer, the biological filter material layer and the gas outlet are sequentially distributed from bottom to top; the spraying system comprises a plurality of nozzles, the nozzles are distributed above the physical adsorption padding layer and above the biological filter material layer, the nozzles are connected with the circulating water tank through water pipes, and water pumps are arranged on the water pipes; a sedimentation water tank is connected below the circulating water tank. The system combines water washing, physical adsorption and biological decomposition, effectively solves the problem of waste gas emission of organic fertilizer plants, obviously improves the surrounding environment of a field, does not discharge other wastes in treatment engineering, does not produce secondary pollution, and is favorable for sustainable development of livestock and poultry breeding industry.

Description

Fertilizer factory fermentation workshop deodorization system

Technical Field

The utility model relates to the technical field of organic fertilizer fermentation treatment, in particular to a deodorization system for a fermentation workshop of an organic fertilizer plant.

Background

The organic fertilizer is produced by mainly using livestock and poultry manure, crop straws and other waste gas in breeding industry as raw materials, performing composting treatment by adopting a biological fermentation method, and generating a large amount of odorous gas in the composting fermentation process, wherein the odorous gas mainly comprises Volatile Organic Compounds (VOCs), sulfur compounds, nitrogen compounds and the like, such as mercaptan, ammonia gas, thioether and the like, has strong irritation, can enter a human body through different ways such as respiratory tract, eyes, skin and the like, is easy to cause various respiratory tract diseases, nervous system diseases and the like, and is extremely harmful to the human body. Not only pollutes the ecological environment, but also directly influences the life quality of surrounding residents.

At present internal fertilizer factory waste gas is discharged in the atmosphere with the mode of direct vent more, perhaps utilizes the chimney to carry out the high altitude emission and handles, and a small number of fertilizer factories are equipped with simple deodorization facility, but operate with washing and physisorption's mode more, and the deodorization effect is poor, needs often to change the adsorption padding, and the running cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the deodorization operation cost of an organic fertilizer plant waste gas treatment mode in the prior art is high, the effect is poor, the deodorization operation is not friendly to the surrounding people and workers in the plant, and the like, and provides a deodorization system for a fermentation workshop of an organic fertilizer plant, which is used for collecting and purifying peculiar smell gas so as to improve the space and the environmental quality around the peculiar smell gas

The specific technical scheme of the utility model is detailed as follows:

a deodorization system for a fermentation workshop of an organic fertilizer plant comprises a waste gas collecting system and a deodorization system, wherein the deodorization system comprises a gas inlet, a gas outlet, a circulating water tank, a spraying system, a physical adsorption padding layer and a biological filter material layer, wherein the gas inlet, the physical adsorption padding layer, the biological filter material layer and the gas outlet are sequentially distributed from bottom to top; the spraying system comprises a plurality of nozzles, the nozzles are distributed above the physical adsorption padding layer and the biological filter material layer, the nozzles are connected with the circulating water tank through water pipes, and water pumps are arranged on the water pipes; a sedimentation water tank is connected below the circulating water tank.

Optionally or preferably, above-mentioned fertilizer factory fermentation workshop deodorization system, waste gas collection system includes fan, trunk line and small transfer line, and the small transfer line is a plurality of, and the equipartition is along the trunk line, and the tip of small transfer line is used for collecting waste gas, and the fan will be delivered to deodorization system's air inlet from the waste gas that the small transfer line was collected.

Optionally or preferably, in the deodorization system for fermentation workshops of organic fertilizer plants, the physical adsorption padding layer is filled with an adsorption material, and the adsorption material comprises at least one of sawdust, zeolite, charcoal and straw.

Optionally or preferably, in the deodorization system for the fermentation workshop of the organic fertilizer plant, the biological filter material layer is filled with microorganism attached fillers.

Optionally or preferably, in the deodorization system for fermentation plants of organic fertilizer plants, the microorganism attached filler comprises carrier particles, and a microorganism layer and a liquid film layer which are sequentially wrapped outside the carrier particles.

Optionally or preferably, according to the deodorization system for the fermentation workshop of the organic fertilizer plant, the circulating water tank is supplied with make-up water by tap water, precipitates in the circulating water tank flow into the sedimentation water tank, and the sedimentation water tank is provided with a sewage outlet.

Compared with the prior art, the utility model has the following beneficial effects:

according to the deodorization system for the organic fertilizer plant fermentation workshop, waste gas in the organic fertilizer plant workshop is sucked to the bottom air inlet of the deodorization system by the fan, the waste gas is sprayed and washed in the initial rising stage, ammonia gas and other gases which are easily dissolved in water are absorbed by the water and enter the circulating pool, and meanwhile, malodorous substances are converted into a liquid phase from a gas phase so as to be adsorbed by microorganisms, so that the deodorization system has a dust removal effect. The gas through first washing continues to rise, gets into the physical adsorption bedding material layer, carries out partial absorption through adsorbing material, and there is the nozzle water spray physical adsorption bedding material layer top simultaneously, carries out the washing of second way. The gas continuously rises after the adsorption of the layer and enters a biological filter material layer, the microorganism attached filler of the layer is added with a microorganism microbial inoculum, the microorganism is attached to carrier particles to form a biological film, odor molecules are diffused to the biological film formed on the surface of the biological filler, the microorganism oxidizes and decomposes the odor molecules, the odor substances are used as nutrient sources for growth and propagation, and the odor substances are converted into simple inorganic substances through the metabolic activity of the microorganism, so that the odor pollution is eliminated. The nozzles are still arranged above the biological filter material layer for spraying water, the sprayed water is circulating water which is used for absorbing soluble components in a part of waste gas at first, and malodorous components needing to be treated in the waste gas are supplemented to the biological decomposition and physical adsorption processes for multiple times, so that the treatment efficiency is improved. In addition, the dust and the like washed by water in the circulating water tank are continuously precipitated, finally enter the precipitation water tank and are discharged.

The deodorization system for the fermentation workshop of the organic fertilizer plant effectively solves the problem of waste gas emission of the organic fertilizer plant, and ensures that the emitted gas reaches the high-altitude emission standard of discharge standard of malodorous pollutants of the people's republic of China through treatment, so that the surrounding environment of a field area is obviously improved. No other wastes are discharged in the treatment engineering, no secondary pollution is generated, and the method meets the requirements of urban development and urban modern agriculture in China and strengthens the construction direction of agricultural ecological environment. The contradiction between the development of the livestock and poultry breeding industry and the environment is effectively solved, and the sustainable development of the livestock and poultry breeding industry is effectively ensured.

Drawings

FIG. 1 is a schematic diagram of the integral structure of a deodorization system of a fermentation workshop of an organic fertilizer plant and the fermentation workshop of the organic fertilizer plant;

FIG. 2 is a schematic view of a top-down structure of the deodorization system of the fermentation workshop of the organic fertilizer plant and the fermentation workshop of the organic fertilizer plant;

FIG. 3 is a schematic diagram of the overall structure of a deodorization system of a fermentation workshop of an organic fertilizer plant;

FIG. 4 is a schematic view of the decomposition and deodorization process of the microorganism attached filler in the biological filter material layer.

In the figure:

1-a waste gas collecting system 2-a deodorizing system 3-a fermentation workshop 4-an air inlet 5-an air outlet, 6-a circulating water tank, 7-a physical adsorption padding layer, 8-a biological filter material layer, 9-a sedimentation water tank, 10-a water pump, 11-a nozzle, 12-a water pipe, 13-a fan, 14-a main pipeline and 15-branch pipelines.

Detailed Description

The technical solutions of the present invention are explained and illustrated in detail below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it.

Please refer to fig. 1 and fig. 2, which are deodorizing systems for fermentation workshops of organic fertilizer plants connected to the fermentation workshops 3 of organic fertilizer plants, wherein the deodorizing systems are cuboid buildings and located in the middle positions outside the fermentation workshops 3 of organic fertilizer plants, and can be shared by the two fermentation workshops 3.

This fertilizer factory fermentation workshop deodorization system divides two parts to organize: an exhaust gas collection system 2 and a deodorizing system 3.

Referring to fig. 2 and 3, the waste gas collecting system 1 includes a fan 13, a main pipe 14 and a branch pipe 15, wherein the branch pipes 15 are uniformly distributed along the main pipe 14, the end of the branch pipe 15 is communicated with the top of the fermentation workshop 3 for collecting waste gas in the fermentation workshop 3, and the fan 13 sends the waste gas collected from the branch pipe 15 to the air inlet 4 of the deodorization system.

The fan 13 preferably uses a high-power exhaust fan, the power of the fan calculates the air volume of the required exhaust fan according to the volume of the workshop, the required exhaust fan is arranged in the middle of the outside of the fermentation workshop 3, and the power of the required exhaust fan meets the requirement that the air in the workshop is replaced 3 times per hour. The main pipeline 14 is preferably arranged at the middle position of the top of the workshop, the diameter of the main pipeline is 50 centimeters, and the length of the main pipeline is 90 percent of the total length of the workshop; the branch ducts 15 are preferably vertically staggered to the main duct 14, are 20 cm in diameter and one quarter of the width of the plant, and are fitted at their ends with downwardly opening elbows. The fan 13 is preferably connected to other equipment or components using a flexible stub, which is suitably tensioned at the inlet to prevent the fan from being sucked when it is activated. The fan base adopts damping device, and the base is fixed on the basis with expansion bolts. The fan inlet can also be provided with a regulating valve according to the requirement.

Referring to fig. 3, the deodorization system 2 includes an air inlet 4, an air outlet 5, a circulating water tank 6, a spraying system, a physical adsorption padding layer 7 and a biological filter layer 8, wherein the air inlet 4, the physical adsorption padding layer 7, the biological filter layer 8 and the air outlet 5 are sequentially distributed from bottom to top.

The spraying system comprises a plurality of nozzles 11, the nozzles 11 are distributed above the physical adsorption padding layer 7 and above the biological filter material layer 8, the nozzles 11 are connected with the circulating water pool 6 through water pipes 12, and the water pipes 12 are provided with water pumps 10; a sedimentation water tank 9 is also connected below the circulating water tank 6. And water pumps 10 are respectively arranged in the circulating water tank 6 and the sedimentation water tank 9, so that the water circulation and the water discharge are conveniently finished. The connection between the water pump 10 and the pipes is provided with corresponding valves, the outlet of the water pump connection preferably being connected with a flexible connection. The water pump is fixed on the corresponding base, and the base is fixed on the foundation by bolts.

The physical adsorption padding layer 7 is filled with adsorption materials, and the adsorption materials comprise sawdust, zeolite, charcoal, straw and the like and can adsorb some malodorous gases.

The biological filter material layer 8 is filled with microorganism attached filler, and the microorganism attached filler comprises carrier particles, and a microorganism layer and a liquid film layer which are sequentially wrapped outside the carrier particles.

Washing, adsorbing and decomposing:

the organic fertilizer produced in the fermentation workshop 3 is mainly prepared from chicken manure, but a large amount of peculiar smell gas is generated by the chicken manure during composting fermentation, the peculiar smell gas is mainly Volatile Organic Compounds (VOCs), sulfur compounds, nitrogen compounds and the like, such as mercaptan, thioether, hydrogen sulfide, ammonia and the like, has strong irritation, can enter a human body through different ways such as respiratory tract, eyes, skin and the like, causes people to be unconscious and uncomfortable, and has great damage to the nervous system of the human body after being placed in the fermentation workshop for a long time.

Odor in the fermentation workshop 3 is introduced into an air inlet 4 at the bottom of the deodorization system 2 by a high-power induced draft fan 13, a spray water pump is automatically started, a nozzle 11 sprays water, the odor is sprayed and washed in the initial rising stage, ammonia gas and other gases which are easily dissolved in water are absorbed by water and enter a circulating pool 6, and meanwhile, odor substances are converted into a liquid phase from a gas phase so as to be convenient for microbial adsorption and have a dust removal effect.

The remaining gas which is not dissolved in water continuously rises to enter a deodorization stage of a physical adsorption padding layer 7, and a large amount of sawdust, zeolite, charcoal, straw and other substances are added in the layer, so that malodorous gas can be adsorbed.

After the adsorption, the gas continuously rises and enters the bio-adsorption stage of the bio-filter layer 8, referring to fig. 4, the added microbial inoculum in the layer allows the microorganisms to attach to the carrier particles of the filler to form a biofilm, and the malodorous substances are used as a nutrient source for growth and propagation and are converted into simple inorganic substances through the metabolic activity of the microorganisms.

A fermentation workshop 3 can be provided with a plurality of sets of deodorization systems of the fermentation workshops of the organic fertilizer plants side by side, and the processing capacity can reach 70000m³/h，

The inventive concept is explained in detail herein using specific examples, which are given only to aid in understanding the core concepts of the utility model. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are included in the scope of the present invention.

Claims

1. The deodorization system is characterized by comprising a waste gas collecting system and a deodorization system, wherein the deodorization system comprises an air inlet, an air outlet, a circulating water tank, a spraying system, a physical adsorption padding layer and a biological filter material layer, wherein the air inlet, the physical adsorption padding layer, the biological filter material layer and the air outlet are sequentially distributed from bottom to top; the spraying system comprises a plurality of nozzles, the nozzles are distributed above the physical adsorption padding layer and above the biological filter material layer, the nozzles are connected with the circulating water tank through water pipes, and water pumps are arranged on the water pipes; a sedimentation water tank is connected below the circulating water tank.

2. The deodorization system for the fermentation workshop of the organic fertilizer plant as claimed in claim 1, wherein the waste gas collection system comprises a plurality of fans, a main pipeline and branch pipelines, the branch pipelines are uniformly distributed along the main pipeline, the end parts of the branch pipelines are used for collecting waste gas, and the fans convey the waste gas collected from the branch pipelines to the gas inlet of the deodorization system.

3. The deodorization system for fermentation workshop of organic fertilizer plant according to claim 1, wherein the physical adsorption padding layer is filled with adsorption material, and the adsorption material is sawdust, zeolite, charcoal or straw.

4. The deodorization system for fermentation workshop of organic fertilizer plant according to claim 1, wherein microorganism attached filler is filled in the biological filter layer.

5. The deodorization system for fermentation workshops of organic fertilizer plants according to claim 4, wherein the microorganism attached filler comprises carrier particles, and a microorganism layer and a liquid film layer which are sequentially wrapped outside the carrier particles.

6. The deodorization system for fermentation workshop of organic fertilizer plant as claimed in claim 1, wherein the circulating water tank is supplied with make-up water by tap water, the sediment in the circulating water tank flows into the sedimentation water tank, and the sedimentation water tank is provided with a drain outlet.