CN209778823U - Dynamic organic sludge fermentation drying system - Google Patents

Abstract

The utility model discloses a dynamic organic sludge fermentation drying system, which comprises a sludge bin, a dry bin, an auxiliary bin, an aerobic fermentation bacteria bin, a mixing box and a plurality of sections of dynamic fermentation boxes, wherein a conveying device is arranged between a discharge port of the mixing box and a feed inlet of the dynamic fermentation boxes, and a stirring device is arranged in the mixing box; the dynamic fermentation box is internally provided with a plurality of layers of mesh belts at transverse intervals, the mesh belts are connected with a driving motor in a transmission manner, the head end of the next layer of mesh belt is correspondingly arranged at the position below the tail end of the adjacent last layer of mesh belt, the head end of the next layer of mesh belt extends out of the tail end of the adjacent last layer of mesh belt by a certain distance, the top of the dynamic fermentation box is provided with a moisture removing fan, and the driving motor is used for correspondingly driving the mesh belts of the adjacent layers to run in. The utility model discloses a developments organic sludge fermentation drying system can the developments material that turns, has guaranteed that the viscidity material does not agglomerate, and the fermentation is even, and fermentation speed is fast, and the handling capacity is big, and drying effect is good, the easy management and control of smell, and area is little.

Description

Dynamic organic sludge fermentation drying system

Technical Field

The utility model relates to an organic sludge treatment equipment technical field, specifically speaking relates to a developments organic sludge fermentation drying system.

Background

Organic wastes such as municipal sludge, slaughter house sludge, citric acid plant sludge, food plant sludge, herb residues, algae sludge, leather plant sludge, biogas residues, paper mill sludge, human and animal feces, marine product sludge and the like having a water content of 50% to 90%, which do not inactivate fermentation bacteria, and which are mainly composed of animal and plant sources, are stored, the odor of putrefying bacteria affects the surrounding environment, and the seeping water causes sludge and groundwater. Therefore, organic sludge needs to be dried, deodorized and sterilized through fermentation to realize the production of environment-friendly fertilizer, combustion and recycling or harmless treatment.

At present, organic matter sludge is mainly realized through several forms such as groove type fermentation, strip stack type fermentation, vertical tank fermentation, horizontal tank fermentation, however, these several kinds of existing fermentation methods all have the defect:

1. The tank type fermentation mainly uses a cement tank to contain materials, the moisture content of the materials is adjusted to an easy fermentation stage, the moisture content is below 60%, the materials are turned and piled by a reverse planer every day to be oxygenated, the fermentation is completed within 15-30 days, the occupied area is large, the initial investment of the fermentation tank is large, and the smell is not easy to collect and treat in the fermentation process. The energy consumption is large, the fermentation period is too long, and the influence of seasons and air temperature is large;

2. The strip pile type fermentation is mainly used for fermentation of livestock and poultry excrement and organic fertilizer plants, water is adjusted to a stage suitable for fermentation, the water is piled into strip pile fermentation with the height of about 1.5 meters, a mobile reverse planer is used for conducting reverse planing and oxygenation, heat preservation and temperature raising are not facilitated, the fermentation time is long, odor cannot be controlled, and the occupied area is very large.

3. The top of the vertical tank is continuously fed, the lower end of the vertical tank is continuously discharged, stirring and oxygenation are arranged inside the vertical tank, materials reaching the fermentation effect move downwards, and a circulation is formed in about 6 days, but the vertical tank is large in size, and the bearing is large in torsion and easy to break due to the fact that stirring stress is too large. The process has the advantages of low processing capacity, high energy consumption and labor cost;

4. The horizontal tank fermentation equipment utilizes the tank body to be filled with hot air or heat conducting medium to heat the materials in the tank body, so as to excite the activity of strains and improve the fermentation speed. The disadvantage is that the tank body is easy to rotate or stir, the viscous materials are easy to be agglomerated into balls or blocks, and the drying effect is greatly reduced. The pot body structure causes that the water vapor is not smoothly discharged, and the long-acting effect in the drying time is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the dynamic organic sludge fermentation drying system can dynamically turn materials, ensures that viscous materials are not agglomerated, is uniform in heating and drying and wetting, is high in fermentation speed, large in treatment capacity, good in drying effect, easy in odor control and small in occupied area.

In order to solve the technical problem, the technical scheme of the utility model is that:

The dynamic organic sludge fermentation drying system comprises a mixing box, wherein the front end of the mixing box is provided with a sludge bin, a dry bin, an auxiliary material bin and an aerobic fermentation bacteria bin, the rear end of the mixing box is provided with a plurality of sections of dynamic fermentation boxes, conveying devices are arranged among the sludge bin, the dry bin, the auxiliary material bin, the aerobic fermentation bacteria bin and the mixing box, conveying devices are arranged between a discharge port of the mixing box and a feed port of the dynamic fermentation box, and a stirring device is arranged in the mixing box;

The interior horizontal interval of developments fermenting case is equipped with the multilayer guipure, the guipure transmission is connected with driving motor, and the head end correspondence of lower one deck guipure is located the terminal below department of adjacent last one deck guipure, and the head end of lower one deck guipure extends one section distance than the end of adjacent last one deck guipure, the top of developments fermenting case is equipped with row damp fan, driving motor is used for corresponding the drive adjacent layer the guipure is reverse operation each other.

Preferably, the fermentation time of the sludge is set to be T, the running speed of the mesh belt in the dynamic fermentation box is set to be V, and the total length of the mesh belt in the dynamic fermentation box needs to meet the following condition that L is not less than the value of T/V.

Preferably, the fermentation tank further comprises a hot air box, a hot air pipe is arranged in the dynamic fermentation box, and the hot air pipe is connected with an air outlet of the hot air box.

Preferably, the heat recovery gas-liquid separation device further comprises a heat recovery gas-liquid separation device, the heat recovery gas-liquid separation device comprises a shell-and-tube heat exchanger, the shell-and-tube heat exchanger comprises a cylinder, a plurality of heat exchange tubes are arranged in the cylinder, a primary side inlet and a primary side outlet are arranged on the cylinder, a plurality of metal wire meshes are arranged in the cylinder and positioned between the primary side inlet and the primary side outlet, a secondary side inlet and a secondary side outlet are arranged at two ends of the cylinder, an air outlet end of the moisture exhaust fan is connected with the primary side inlet through a pipeline, the primary side outlet is connected with the secondary side inlet through a pipeline, and the secondary side outlet is connected with an air inlet of;

The bottom of the barrel is provided with a water outlet, the water outlet is connected with a water drain pipe, and the water drain pipe is provided with a floating ball switch.

Preferably, the feed inlet department and the discharge gate department of developments fermenting case all are equipped with seals and dial the material device, seal and dial the material device and include the cylindric shell, the top slope of shell is equipped with the feed inlet of loudspeaker form, the middle part axial is equipped with the pivot of being connected with the power device transmission in the shell, the interval is equipped with a plurality of blades in the pivot, leaves the clearance between adjacent blade, the outer edge portion all around of blade with the inside wall sliding contact of shell, the bottom of shell is equipped with the discharge gate.

Preferably, the dynamic fermentation box comprises at least two sections, and a conveying device is arranged between the dynamic fermentation boxes of adjacent sections.

preferably, two ends of each layer of mesh belt are provided with support shafts, and two ends of each support shaft are rotatably connected with the dynamic fermentation box or a support device in the dynamic fermentation box through bearings; and a vibrating distributor is arranged at a feed inlet at the top of the dynamic fermentation box.

Preferably, the device also comprises an electric cabinet, and a controller is arranged in the electric cabinet.

Preferably, the sludge bin, the dry bin and the auxiliary bin and the aerobic fermentation bacteria bin are connected with a feeding funnel through a weighing sensor, a discharge hole in the bottom end of the feeding funnel is connected with a discharge pipe, a control valve is arranged on the discharge pipe, and the weighing sensor and the control valve are respectively electrically connected with the controller.

Preferably, a temperature sensor and a humidity sensor are arranged in the dynamic fermentation box, a control valve is arranged on the hot air pipe, and the temperature sensor, the humidity sensor, the control valve, the driving motor, the power device and the vibrating distributor are respectively electrically connected with the controller.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

The utility model discloses a developments organic sludge fermentation drying system has following advantage:

1. the sludge bin, the dry material bin, the auxiliary material bin and the aerobic fermentation bacteria bin are arranged on the mixing box, sludge is added simultaneously, dry materials, auxiliary materials and aerobic fermentation bacteria are stirred and mixed, the water content of the sludge is reduced, the viscosity of the sludge is reduced, the air permeability is good, the mixture is conveyed into the dynamic fermentation box and sequentially passes through the multiple layers of mesh belts, so that the organic sludge is in a moving state in the fermentation process, dynamic fermentation is realized, the material turning effect is realized when the organic sludge falls from an upper layer mesh belt to an adjacent lower layer mesh belt, the dynamic material turning is realized, the viscous material is guaranteed not to be caked, the heating is uniform, the drying is uniform, the fermentation speed is high, the drying effect is good, the fermentation speed is greatly improved, the fermentation time is shortened to 12-72 hours, the energy-saving effect is good, the energy consumption is low, the processing amount is large, and the.

2. a plurality of dynamic fermentation boxes can be utilized to be connected in series for use, uninterrupted and continuous feeding and discharging operation is realized, and the working efficiency is improved.

3. Utilize hot-blast case to provide hot-blast to in the dynamic fermentation case, improve the temperature in the dynamic fermentation case rapidly, improve fermentation speed greatly, utilize heat recovery gas-liquid separation equipment, both played the effect of removing damp, fully recycle the heat of the air of removing damp fan exhaust again, further played energy-conserving effect, reduced the energy consumption. Traditionally, the sludge with the water content of 80 percent per ton is dried until the water content of 40 percent per ton needs 750000 kilocalorie of heat, the total electricity consumption is about 200-400 ℃, the process invention only needs 100000 kilocalories of heat, and the electricity consumption of equipment is 20-30 ℃.

4. Through the arrangement of the multi-section dynamic fermentation box, energy consumption is reduced, moisture volatilization is thorough, the effect of the decrement ratio closed equipment is obvious, and the moisture content is obviously reduced through temperature raising dehumidification, normal temperature dehumidification, temperature raising dehumidification again and normal temperature dehumidification.

5. the feed inlet department and the discharge gate department of developments fermenting case all set up and seal and dial the material device, make feed inlet and discharge gate department seal, and heat recovery gas-liquid separation equipment makes the row of damp sealed, and whole equipment seals the operation, has prevented effectively that the fermentation smell from giving off polluted environment in the air.

6. Traditional heating drying back mud is the stereoplasm is cubic, can't be used in gardens with fertilizer and other recycles, can only burn or landfill, and the utility model discloses a mud after the drying of dynamic organic sludge fermentation drying system is loose form thoroughly decomposed completely, the free from extraneous odour. The device can also be matched with columnar granulation equipment to produce organic fertilizer and biomass fuel, and can be used for improving organic fertilizer or soil for gardens. The produced organic fuel can be automatically used in biomass combustion heat exchange equipment, fuel expenditure is reduced, the organic fuel can be sold, and the effect of energy conservation and reutilization is realized.

7. The utility model discloses a developments organic sludge fermentation drying system can form a complete set column granule granulator, allots the material as required, can produce fertilizer, fuel, fodder etc. realizes that multipurpose and fuel are self-sufficient.

8. it is convenient to maintain, the utility model discloses a developments organic sludge fermentation drying system does not have accurate accessory, accords with normal fermentation principle, does not have high strength bearing force part in the equipment, does not have vulnerable part.

drawings

the invention will be further explained with reference to the following figures and examples:

FIG. 1 is a schematic structural diagram of a first embodiment of the dynamic organic sludge fermentation and drying system of the present invention;

FIG. 2 is a schematic diagram of the dynamic fermentation tank of FIG. 1;

FIG. 3 is a schematic view of the closed kick-off device of FIG. 1;

FIG. 4 is a state view of the closed stirring device of FIG. 3;

FIG. 5 is a schematic view of the connection of the sludge silo to the hopper of FIG. 1;

FIG. 6 is a control schematic block diagram of the dynamic organic sludge fermentation drying system of FIG. 1;

FIG. 7 is a schematic structural diagram of a second embodiment of the dynamic organic sludge fermentation and drying system of the present invention;

FIG. 8 is a schematic view of the structure of the heat recovery gas-liquid separating device in FIG. 7;

fig. 9 is an enlarged schematic structural view of a portion a in fig. 8;

In the figure: 1-a mixing box; 2-a dynamic fermentation box; 3-a controller; 4-a conveying device; 5-a feed inlet; 6-sludge bin; 7-a dry stock bin; 8-an auxiliary material bin; 9-aerobic fermentation bacteria storehouse; 10-vibrating distributor; 11-a mesh belt; 12-a drive motor; 13-moisture removal fan; 14-a hot air box; 15-hot air pipes; 16-a hot air blower; 17-a conveying device; 18-a discharge hole; 19-sealing the material stirring device; 191-a housing; 192-a feed port; 193-a rotating shaft; 194-a blade; 195-gap; 196-a discharge hole; 20-a power plant; 21-supporting shaft; 22-a load cell; 23-an addition funnel; 24-a control valve; 25-a temperature sensor; 26-a humidity sensor; 27-a heat recovery gas-liquid separation device; 271-cylinder; 272-heat exchange tubes; 273-primary side inlet; 274-primary side outlet; 275-secondary side inlet; 276-secondary side outlet; 277-wire mesh; 278-a water discharge port; 279-float switch.

Detailed Description

in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example one

Referring to the attached drawings 1 to 6, the dynamic organic sludge fermentation drying system of the embodiment includes a mixing box 1, two dynamic fermentation boxes 2 are arranged behind the mixing box, a feed inlet 5 is arranged at the top of the dynamic fermentation box 2, a discharge outlet 18 is arranged at the bottom of the dynamic fermentation box 2, a conveying device 4 is arranged between the discharge outlet of the mixing box 1 and the feed inlet 5 of the dynamic fermentation box 2, a conveying device 4 is arranged between the two dynamic fermentation boxes 2, and the conveying device 4 can adopt a conveying belt or a lifter.

The place ahead of mixing box 1 is equipped with conveyor, mud storehouse 6, dry material storehouse 7 and auxiliary material storehouse 8 and aerobic fermentation fungus storehouse 9, conveyor 17 extends to mixing box 1's feed inlet department, mud storehouse 6, dry material storehouse 7 and auxiliary material storehouse 8 and aerobic fermentation fungus storehouse 9 all are located conveyor 17's top, conveyor 17 here adopts the conveyer belt, mixing box 1 is the same with mixing box 1 structure of prior art, be equipped with agitating unit (not shown in the figure) in inside, agitating unit can include by motor drive's (mixing) shaft, can set up the stirring rake on the (mixing) shaft.

Can add mud in the mud storehouse 6 simultaneously, add the drier in the dry material storehouse 7, add the auxiliary material in the auxiliary material storehouse 8, add aerobic fermentation fungus to aerobic fermentation fungus storehouse 9, mud storehouse 6, dry material storehouse 7, auxiliary material storehouse 8 and aerobic fermentation fungus storehouse 9 add mud, dry material, auxiliary material and aerobic fermentation fungus stirring and mixing in 1 batch mixer simultaneously, the mixed material reaches that the moisture content is below 60%, carbon-nitrogen ratio 20-40: 1. is loose and has no big blocks with the diameter of more than 5 cm. After mixing, the mixture directly enters a dynamic fermentation box 2 through a conveying device 4 and a vibrating distributor 10 or is stacked for 1 to 3 days to activate the strain for heating and save heat for feeding. The sludge can be municipal sludge with the water content of 50-90%, slaughter house sludge, citric acid plant sludge, food plant sludge, traditional Chinese medicine residue, algae sludge, leather plant sludge, biogas residue, paper mill sludge, human and animal manure, marine product sludge and other organic sludge which does not inactivate zymophyte and takes animal and plant sources as raw materials, the dry material is sludge material after fermentation and drying, for example, the dry material can be produced after the equipment is processed, the water content of the auxiliary material is less than 40%, the volume of the auxiliary material is not more than 0.5 cubic centimeter, and the auxiliary material can be waste with high organic matter content such as vinasse, furfural residue, straw, sawdust, peanut shells, bran, mushroom stick residue, kitchen garbage residue and the like so as to reduce the cost. The fermentation strain is aerobic compost fermentation strain of Shandong Youpu biological Limited company or Weifang Su Kehan biological Limited company. Activating oxygen fermenting bacteria with water or brown sugar water or glucose water, and activating with multiple adjuvants. Adding 20-50% of auxiliary materials and 50-10% of dried materials according to the organic matter content of the materials, mixing and conditioning (the materials have high organic matter content and the water content is below 60%, the auxiliary materials and the compound materials can not be added), adding fermentation strains in the mixing process, wherein the fermentation strains can be solid or liquid, activating the aerobic fermentation bacteria by using solid strains with water or brown sugar water and glucose water, and then activating and expanding the activated aerobic fermentation bacteria by using multiple times of auxiliary materials so as to improve the activity of the aerobic fermentation bacteria and the uniformity of the materials entering the fermentation system.

the dynamic fermentation box 2 is internally provided with a plurality of layers of mesh belts 11 at intervals in the transverse direction, the mesh belts 11 are connected with a driving motor 12 in a transmission way, the driving motor 12 can be arranged on the outer side wall of the dynamic fermentation box 2 or the top of the box body 1, and when the driving motor is arranged on the top of the box body 1, the driving motor can be in transmission connection with the mesh belts on the corresponding layers through a transmission device, such as a chain. The head end of the next layer of mesh belt 11 is correspondingly arranged at the lower part of the tail end of the adjacent previous layer of mesh belt 11, the tail end of the next layer of mesh belt 11 is correspondingly arranged at the lower part of the head end of the adjacent previous layer of mesh belt 11, the head end of the next layer of mesh belt 11 extends out of the tail end of the adjacent previous layer of mesh belt 11 by a distance, the top of the dynamic fermentation box 2 is provided with a moisture exhaust fan 13, and when the dynamic fermentation box is in normal operation, under the corresponding driving of the driving motor 12, every two adjacent layers of mesh belts 11 are in reverse operation. Each layer of the mesh belt 11 can be provided with a driving motor independently, the mesh belt 11 which can run in the same direction can use the same driving motor, and two driving motors are arranged in total. When a plurality of dynamic fermentation boxes 2 are used in series, the number of layers of the mesh belt 11 is odd layers such as 3, 5, 7, 9 and the like, so that feeding at one end and discharging at the other end are conveniently realized. When only a single dynamic fermentation box 2 is used, the number of layers of the mesh belt 11 is even number layers such as 2, 4, 6, 8 and the like, the materials are fed and discharged from the same end, and the output materials are conveniently lifted to enter the distributing equipment to realize circulation of the single equipment. After the mixing in the mixing box, the moisture content of the sludge is reduced, the viscosity of the sludge is reduced, the air permeability is good, the sludge is conveyed into the dynamic fermentation box 2 and sequentially passes through the multilayer mesh belts 11, so that the organic sludge is in a moving state in the fermentation process, the dynamic fermentation is realized, the material turning effect is realized when the organic sludge falls from the upper mesh belt 11 to the adjacent lower mesh belt 11, the viscous material is prevented from caking, the viscous material is uniformly heated, the drying and wetting are uniform, the fermentation speed is high, the drying effect is good, the fermentation speed is greatly improved, the fermentation time is shortened to 12-72 hours, the energy-saving effect is good, the energy consumption is low, the treatment capacity is large, and the whole floor area of the equipment is small.

in order to rapidly raise the temperature in the dynamic fermentation tank 2 and increase the fermentation speed, a hot air tank 14 may be further provided, and conventionally, the hot air tank 14 may be provided with a heating device in the hot air tank 14 by using the following structure, the heating device may be an electric heating pipe or other heating device capable of heating air and outputting hot air, or a structure in which a heat exchanger is added at the rear end of a burner to output hot air, and the burner may be a biomass burner or fuel oil, and gas is used as an energy source. The dynamic fermentation box 2 is internally provided with a hot air pipe 15, an air outlet of the hot air box 14 is connected with the hot air pipe 15 after being connected with a hot air fan 16, the hot air pipe 15 can be arranged at the bottom in the dynamic fermentation box 2 and can also be inserted into the annular space of each layer of mesh belt, a plurality of air outlet holes are formed in the hot air pipe 15, hot air is blown upwards, the temperature of materials on the mesh belt 11 is rapidly improved, and the hot air pipe can also be arranged at one side of the mesh belt 11 and blows hot air to the mesh belt 11 horizontally. After the mixed materials enter the dynamic fermentation box 2, the hot air box 14 starts to work to provide hot air into the dynamic fermentation box 2, so that the temperature in the dynamic fermentation box 2 is rapidly increased, the fermentation speed is greatly increased, the hot air temperature is not higher than 100 ℃ and not lower than 60 ℃, the heating is stopped after the overall temperature of the materials is higher than 60 ℃, the heating is started when the temperature is lower than 40 ℃, the proper temperature required by the fermentation is kept in the dynamic fermentation box 2, and the fermentation speed is ensured.

two ends of each layer of mesh belt 11 are provided with a support shaft 21, and two ends of the support shaft 21 can be rotatably connected with the dynamic fermentation box 2 or a support device in the dynamic fermentation box 2 through a bearing and a bearing seat; a vibrating distributor 10 is arranged at a feed inlet 5 at the top of the dynamic fermentation box 2, and the vibrating distributor 10 can be the vibrating distributor 10 of the existing tall and other brands in the market. The materials mixed in the mixing box 1 are uniformly distributed on a first layer of mesh belt 11 in the dynamic fermentation box 2 by using a vibrating distributor 10, and the thickness of the materials is controlled to be below 40 cm.

the feed inlet 5 and the discharge outlet 18 of the dynamic fermentation box 2 are both provided with a closed material stirring device 19, the closed material stirring device 19 at the feed inlet 5 is positioned below the vibrating distributor, the closed material stirring device 19 comprises a cylindrical shell 191, the top of the shell 191 is obliquely provided with a horn-shaped feed inlet 192, the middle part in the shell 191 is axially provided with a rotating shaft 193 which is in transmission connection with the power device 20, the power device 20 can adopt a motor, the rotating shaft 193 is provided with a plurality of blades 194 at intervals, gaps 195 are reserved between adjacent blades 194, the outer peripheral edge part of each blade 194 is in sliding contact with the inner side wall of the shell 191, and the bottom of the shell 191 is provided with a discharge outlet 196. When the materials enter the feeding hole 5 of the dynamic fermentation box 2 and run in the dynamic fermentation box 2 and are output from the discharging hole 18, the materials enter the closed material stirring device 19, the blades 194 rotate to stir the materials to be discharged, and when the materials are discharged, the internal and external spaces of the dynamic fermentation box 2 are isolated through the shell 191 and the blades 194, so that the whole equipment is operated in a closed manner, the heat in the dynamic fermentation box 2 is prevented from being dissipated, and the odor is prevented from being discharged to pollute the environment. Meanwhile, in order to prevent the heat in the dynamic fermentation box 2 from dissipating, a heat-insulating layer can be arranged on the periphery of the dynamic fermentation box 2, and the heat-insulating layer can be made of aluminum silicate plates, rock wool, polyurethane heat-insulating plates, vacuum double-layer glass and other heat-insulating materials which can resist more than 100 ℃. The absorbent material of rock wool must be isolated externally to prevent moisture from entering the interior of the thermal insulation material to reduce the thermal insulation effect. The heat insulation material can be made of one material or more than two materials in a composite mode, and the middle of the heat insulation material can be provided with a gap so as to improve the heat insulation effect.

the mixer further comprises an electric cabinet, wherein the electric cabinet can be arranged on the frame supporting the mixer 1, and the electric cabinet can also be independently arranged. The controller 3 is arranged in the electric cabinet or the electric cabinet, and the controller 3 can adopt the existing industrial control devices such as a PLC, a single chip microcomputer or an industrial personal computer.

Setting the fermentation time of the sludge as T and the running speed of the mesh belts 11 in the dynamic fermentation boxes 2 as V, the total length of the mesh belts 11 in the two dynamic fermentation boxes 2 needs to meet the following condition that L is not less than the value of T/V, and the value of L is slightly greater than the value of T/V, so that the sludge just completes fermentation after running on all the mesh belts 11. Generally, according to the length of the mesh belt 11, after entering the dynamic fermentation box 2, the material falls onto the first layer mesh belt 11 above, along with the operation of the first layer mesh belt 11, the material reaches the tail end of the first layer mesh belt 11 and falls onto the second layer mesh belt 11, so that a material turning process is realized, the material passes through the mesh belts 11 in sequence, and the forward speed of the mesh belt 11 is calculated after the material reaches the mesh belt 11 and is discharged to the bottom for no less than six hours. During the period, the temperature of the material reaches the propagation peak of the zymophyte, the aerobic zymophyte is multiplied, the nutrients such as carbon, nitrogen, oxygen, water and the like in the material are consumed, the nitrification and denitrification reactions are carried out to achieve the effect of removing the odor, carbon dioxide and heat are generated, and meanwhile, the living space of other harmful bacteria is rapidly occupied. When the temperature of the material is higher than fifty-five ℃, harmful bacteria such as escherichia coli and the like gradually begin to die, and finally the requirement of harmless treatment is met. The material turning process not only supplements oxygen, but also leads warm air to take away moisture of the material, and leads the material to be heated evenly.

The material falls into monomer equipment ejection of compact hoisting device rethread conveyor 4 and gets into monomer equipment or the conveyor 4 of second dynamic fermentation case 2 after reaching the discharge gate 18 of dynamic fermentation case 2, and the material is through the hot moisture of normal atmospheric temperature air dehumidification on conveyor 4. Is sent into the second dynamic fermentation box 2 through a conveying device 4. The working state of the first dynamic fermentation box 2 is repeated, the third, the fourth and the fifth devices can be connected under the condition of large treatment capacity, and the working states of the other dynamic fermentation boxes 2 are the same as the working states from the first to the second. After the whole process reaches 12-72 hours, the water content of the material reaches below 45%, and the material is discharged after passing through a discharging conveyor after the temperature is not lower than 40 ℃.

The treated material is loose and odorless, and is placed in a pile, and the temperature and the humidity of the material are higher than those of normal-temperature air, so that aerobic fermentation bacteria are continuously propagated to generate carbon dioxide and heat, the material is continuously decomposed, and the humidity is continuously reduced. After being placed for 2-5 days, the decomposition is basically finished, the temperature is gradually reduced, and the water content of the material reaches about 30 percent, so that the material can be used as an organic fertilizer or a biomass fuel raw material and a feed raw material.

for example, the harmful components such as heavy metal in the dried material meet the relevant requirements of the national organic fertilizer, and can be used as the raw material for producing the organic fertilizer. Harmful components such as heavy metals exceed the relevant requirements of national organic fertilizers, and can be used as biomass granular fuel. The materials meeting the related national feed standards can also be used as feed raw materials.

The mud storehouse 6, the dry material storehouse 7 and the below in auxiliary material storehouse 8 and aerobic fermentation fungus storehouse 9 all are connected with feed hopper 23 through weighing sensor 22, and the discharge gate of feed hopper 23's bottom is connected with the discharging pipe, is equipped with control valve 24 on the discharging pipe, and weighing sensor 22 and control valve 24 are connected with controller 3 electricity respectively. The measurement of the weighing sensor 22 is utilized to automatically control the sludge, the dry materials, the auxiliary materials and the aerobic zymophyte to be added into the mixing box 1 in proportion.

A temperature sensor 25 and a humidity sensor 26 are arranged in the dynamic fermentation box 2, a control valve is arranged on the hot air pipe 15, and the temperature sensor 25, the humidity sensor 26, the control valve 24, the driving motor 12, the power device 20 and the vibrating distributor 10 are respectively and electrically connected with the controller 3. The temperature sensor 25 can detect the temperature in the dynamic fermentation box 2 to control the on-off of the control valve on the hot air pipe 15, so that the temperature in the dynamic fermentation box 2 is controlled to be at a proper temperature.

the selection of the types of electrical components, such as the load cell 22, the temperature sensor 25, the humidity sensor 26, the control valve 24, the drive motor 12, the power unit 20, the vibratory distributor 10, etc., and the electrical connections between these electrical components and the controller 3, and the electrical connections between the electrical components and the power source, are well known in the art and will not be described in detail herein. The automatic operation of the whole equipment is realized through the control of the controller 3.

Example two

Referring to fig. 7 to 9, the dynamic organic sludge fermentation drying system of the present embodiment has substantially the same structure as that of the first embodiment, except that: the heat recovery gas-liquid separation device 27 is further included, the heat recovery gas-liquid separation device 27 comprises a shell-and-tube heat exchanger, the shell-and-tube heat exchanger comprises a cylinder body 271, a plurality of heat exchange tubes 272 are arranged in the cylinder body 271, a primary side inlet 273 and a primary side outlet 274 are arranged on the cylinder body 271, a plurality of metal wire nets 277 are arranged between the primary side inlet 273 and the primary side outlet 274 in the cylinder body 271, a secondary side inlet 275 and a secondary side outlet 276 are arranged at two ends of the cylinder body 271, an air outlet end of the moisture exhaust fan 13 is connected with the primary side inlet 273 through a pipeline, the primary side outlet 274 is connected with the secondary side inlet 275 through a pipeline. The bottom of the cylinder 271 is provided with a water outlet 278, the water outlet 278 is connected with a water discharge pipe, and the water discharge pipe is provided with a float switch 279. The wet air discharged from the moisture exhaust fan 13 enters the cylinder 271 of the heat recovery gas-liquid separation device 27, under the blocking and cooling effect of the wire mesh 277 and the heat exchange effect with the air in the tube pass, the water vapor in the wet air is condensed into water, the water is accumulated and enters the drain pipe, when the water is accumulated to a certain height in the drain pipe, the float switch 279 is turned on to drain the water, and after the water is drained, the float switch 279 is automatically turned off. The hot air with the water vapor removed enters the tube pass, the heat of the hot air in the shell pass is further absorbed, and the hot air enters the hot air box 14 for heating after being heated. Traditionally, the sludge with the water content of 80 percent per ton is dried until the water content of 40 percent per ton needs 750000 kilocalorie of heat, the total electricity consumption is about 200-400 ℃, the process invention only needs 100000 kilocalories of heat, and the electricity consumption of equipment is 20-30 ℃.

Of course, the number of stages of the dynamic fermentation tank 2 is not limited to the two stages described above, and one or more stages may be provided.

The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.

Claims (10)

1. A dynamic organic sludge fermentation drying system is characterized in that: the device comprises a mixing box, wherein the front end of the mixing box is provided with a sludge bin, a dry bin, an auxiliary bin and an aerobic fermentation bacteria bin, the rear end of the mixing box is provided with a plurality of sections of dynamic fermentation boxes, conveying devices are arranged between the sludge bin, the dry bin and the auxiliary bin as well as between the aerobic fermentation bacteria bin and the mixing box, the conveying devices are arranged between a discharge port of the mixing box and a feed port of the dynamic fermentation box, and a stirring device is arranged in the mixing box;

The interior horizontal interval of developments fermenting case is equipped with the multilayer guipure, the guipure transmission is connected with driving motor, and the head end correspondence of lower one deck guipure is located the terminal below department of adjacent last one deck guipure, and the head end of lower one deck guipure extends one section distance than the end of adjacent last one deck guipure, the top of developments fermenting case is equipped with row damp fan, driving motor is used for corresponding the drive adjacent layer the guipure is reverse operation each other.

2. the dynamic organic sludge fermentation drying system of claim 1, wherein: setting the fermentation time of sludge as T and the running speed of a mesh belt in the dynamic fermentation box as V, wherein the total length of the mesh belt in the dynamic fermentation box needs to meet the following condition that L is not less than the value of T/V.

3. The dynamic organic sludge fermentation drying system according to claim 1 or 2, wherein: the dynamic fermentation box is characterized by further comprising a hot air box, wherein a hot air pipe is arranged in the dynamic fermentation box, and the hot air pipe is connected with an air outlet of the hot air box.

4. The dynamic organic sludge fermentation drying system of claim 3, wherein: the heat recovery gas-liquid separation device comprises a shell-and-tube heat exchanger, the shell-and-tube heat exchanger comprises a barrel, a plurality of heat exchange tubes are arranged in the barrel, a primary side inlet and a primary side outlet are arranged on the barrel, a plurality of metal wire meshes are arranged between the primary side inlet and the primary side outlet in the barrel, a secondary side inlet and a secondary side outlet are arranged at two ends of the barrel, an air outlet end of the moisture exhaust fan is connected with the primary side inlet through a pipeline, the primary side outlet is connected with the secondary side inlet through a pipeline, and the secondary side outlet is connected with an air inlet of the hot air box through a pipeline;

The bottom of the barrel is provided with a water outlet, the water outlet is connected with a water drain pipe, and the water drain pipe is provided with a floating ball switch.

5. The dynamic organic sludge fermentation drying system according to claim 4, wherein: the feed inlet department and the discharge gate department of developments fermenting case all are equipped with seals and dial the material device, seal and dial the shell that the material device includes the cylindric, the top slope of shell is equipped with the feed inlet of loudspeaker form, middle part axial is equipped with the pivot of being connected with the power device transmission in the shell, the interval is equipped with a plurality of blades in the pivot, leaves the clearance between adjacent blade, the outer edge portion all around of blade with the inside wall sliding contact of shell, the bottom of shell is equipped with the discharge gate.

6. The dynamic organic sludge fermentation drying system of claim 5, wherein: the dynamic fermentation box comprises at least two sections, and a conveying device is arranged between the dynamic fermentation boxes of the adjacent sections.

7. The dynamic organic sludge fermentation drying system of claim 5, wherein: two ends of each layer of mesh belt are provided with support shafts, and two ends of each support shaft are rotatably connected with the dynamic fermentation box or a support device in the dynamic fermentation box through bearings; and a vibrating distributor is arranged at a feed inlet at the top of the dynamic fermentation box.

8. The dynamic organic sludge fermentation drying system of claim 7, wherein: the electric cabinet is characterized by further comprising an electric cabinet, and a controller is arranged in the electric cabinet.

9. The dynamic organic sludge fermentation drying system of claim 8, wherein: the sewage sludge bin, dry feed bin with the auxiliary material storehouse with the below in good oxygen fermentation fungus storehouse all is connected with feeding funnel through weighing sensor, the discharge gate of feeding funnel's bottom is connected with the discharging pipe, be equipped with the control valve on the discharging pipe, weighing sensor with the control valve respectively with the controller electricity is connected.

10. The dynamic organic sludge fermentation drying system of claim 9, wherein: the dynamic fermentation box is internally provided with a temperature sensor and a humidity sensor, the hot air pipe is provided with a control valve, and the temperature sensor, the humidity sensor, the control valve, the driving motor, the power device and the vibrating distributor are respectively electrically connected with the controller.