CN219567829U - System for producing solid fertilizer particles by utilizing biogas residues - Google Patents
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Abstract
A system for producing solid particles of organic fertilizer by utilizing biogas residues relates to the field of solid waste treatment. Comprising the following steps: the device comprises a decomposing workshop, a turning machine, a chain plate conveyor, a batching machine, a stirrer, a mixing conveyor, a pulverizer, a granulator, a rounding machine, a dryer, a cooler, a screening machine, a returning crusher, a coating machine and a packaging machine. The dehydrated biogas residues are turned over and piled to be thoroughly decomposed in a thoroughly decomposed workshop through a turning machine, the biogas residues enter a batching machine through a chain plate conveyor, a certain proportion of auxiliary materials are added according to the characteristics of the biogas residues, the biogas residues are fully and uniformly mixed through a stirrer, the biogas residues enter a pulverizer through a mixing conveyor and are pulverized into fine materials, the fine materials are sequentially granulated through a granulating machine, the rounding machine is used for rounding, a dryer is used for drying, a cooler is used for cooling, a screening machine is used for screening, and the oversize materials enter a coating machine through a finished product conveyor for coating, and then enter a packaging machine for bagging and packaging through a spiral conveyor. The undersize is crushed by a return crusher and then is sent into a batching machine by a return conveyor. The utility model has high degree of automation, simple operation, high treatment efficiency and high product quality.
Description
Technical field:
the utility model relates to the field of solid waste treatment, in particular to a system for producing organic fertilizer by utilizing biogas residues.
The background technology is as follows:
at present, organic fertilizers are mainly divided into four types: organic fertilizer for farm and refined organic fertilizer, biological organic fertilizer and organic-inorganic compound fertilizer. The raw materials for producing the organic fertilizer mainly comprise: agricultural waste, livestock and poultry manure, industrial waste, household garbage, municipal sludge and the like. The organic fertilizer production process mainly comprises the processes of composting, crushing, granulating, drying, screening, packaging and the like, and generally has the problems of poor treatment effect, low quality of the organic fertilizer and the like.
The biogas residue is a solid substance remained after the fermentation of the organic substances, is rich in organic substances, humic acid, trace nutrient elements, various amino acids, enzymes, beneficial microorganisms and the like, can meet the growth requirement of crops, and is a high-quality organic fertilizer production raw material. The organic fertilizer produced by using the biogas residues can effectively reduce the production cost and realize the recycling of the biogas residues.
At present, no system for producing organic fertilizer particles by utilizing biogas residues exists in industry, and the system is high in automation degree, simple and convenient to operate, high in treatment efficiency and high in product quality, is an efficient organic fertilizer production system, and can realize recycling of biogas residues.
The utility model comprises the following steps:
the utility model provides a system for producing organic fertilizer solid particles by utilizing biogas residues, which realizes the recycling utilization of the biogas residues and the industrial automatic production.
A system for producing solid organic fertilizer particles by utilizing biogas residues is characterized by comprising: the device comprises a decomposing workshop, a turning machine, a chain plate conveyor, a batching machine, a stirrer, a mixing conveyor, a pulverizer, a fine material conveyor, a granulator, a granule conveyor, a round throwing machine, a round granule conveyor, a dryer, a hot blast stove, a drying induced draft fan, a dry material conveyor, a cooler, a cooling induced draft fan, a semi-finished product conveyor, a screening machine, a returning material pulverizer, a returning material conveyor, a dust remover, a finished product conveyor, a coating machine, a spiral conveyor and a packaging machine;
wherein the turner is arranged in a decomposing workshop; the biogas residues in the decomposing workshop are connected with a chain plate conveyor by adopting a turning machine; the chain plate conveyor discharge port is connected with the batching machine feed port, the batching machine feed port is connected with the crusher feed port sequentially through the stirrer and the mixing conveyor, the crusher feed port is connected with the granulator feed port through the fine material conveyor, the granulator discharge port is connected with the round throwing machine feed port through the granule conveyor, the round throwing machine discharge port is connected with the dryer feed port through the round granule conveyor, the dryer discharge port is connected with the cooler feed port through the dry material conveyor, the cooler discharge port is connected with the screening machine feed port through the semi-finished product conveyor, the screening machine large material outlet is connected with the coating machine feed port through the finished product conveyor, and the coating machine discharge port is connected with the packaging machine through the screw conveyor; the small material outlet of the sieving machine is connected with the feeding port of the returning charge pulverizer, and the discharging port of the returning charge pulverizer is connected with the batching machine through the returning charge conveyor;
one side of the dryer is connected with the hot blast stove, and the other side of the dryer is connected with the drying induced draft fan, so that hot air flow is formed in the dryer; one side of the cooling machine is connected with a cooling induced draft fan; the dryer, the cooler and the screening machine are all connected with the dust remover.
The decomposing workshop is a fully-sealed workshop and is provided with deodorizing equipment. A fermentation tank is arranged in the workshop, a conical hopper is arranged at the tail of the fermentation tank, and the hopper outlet of the turner is connected with a chain plate conveyor;
the turning machine adopts a wheel disc type turning machine and is provided with a shifting machine, so that a plurality of fermentation tanks can share one machine; the wheel disc type turning machine is operated in a variable frequency mode, is hydraulically lifted, is fully automatically controlled, integrates turning and feeding, and can realize the functions of turning and feeding a material pile, feeding a material hopper and the like.
The batching machine consists of a stock bin, a weighing belt and a control system, and has the functions of feeding, weighing and batching; according to the characteristics of biogas residues, the weighing belt speed is controlled by a computer, so that accurate addition of auxiliary materials is realized.
The stirrer adopts a double-shaft stirrer and consists of a stirring shaft, stirring blades, a horizontal stirring barrel and a motor, so that the mixed materials after the ingredients are fully and uniformly mixed in the stirrer.
The pulverizer adopts a semi-wet material pulverizer, the semi-wet material pulverizer adopts a high alloy wear-resistant hammer head and a bidirectional gap adjusting technology, two-stage rotor upper and lower two-stage pulverization is utilized, materials are processed into fine particles through an upper-stage rotor pulverizer, then the fine particles are conveyed to a lower-stage rotor to be continuously pulverized into fine powder to achieve the purposes of material powder and hammer powder, the pulverizing granularity can reach 20-30 meshes, and finally the fine particles are discharged from a discharge hole.
The granulator adopts a rotary drum tooth stirring granulator and consists of a cylinder body, teeth stirring devices, a driving device and the like. The mechanical stirring force of high-speed rotation and the aerodynamic force generated by the mechanical stirring force are utilized to continuously realize mixing, granulating, spheroidizing and densification of the fine powder materials in a machine, and then extrusion force generated among the material particles is agglomerated into balls by means of the rotary motion of the cylinder, so that the purpose of granulating is achieved. The rotary drum tooth stirring granulator combines two technologies of wet tooth stirring granulation and granule wet granulation, so that the produced granules have higher balling rate, are more attractive, and simultaneously save energy.
The round throwing machine is formed by sequentially arranging three round throwing cylinders, materials are discharged from a discharge port after being centrifugally round throwing for a plurality of times, and the finished product has consistent particle size, large density, round and smooth shape and high yield of 97 percent. The rounding machine enables the grain diameter of the rounding particles to be 3-5mm.
The dryer adopts a rotary dryer and mainly comprises a barrel, a front roller ring, a rear roller ring, a gear, a baffle roller, a dragging roller, a pinion, a discharging part, a lifting plate, a speed reducer, a motor, a hot air duct, a feeding chute, a furnace body and the like, and is matched with a hot air furnace, a dust remover, an induced draft fan and the like. The granular organic fertilizer is fed from a feeding port by a round granular conveyor, flows in the dryer by being uniformly distributed through a dispersing device under the action of gravity, hot gas is generated by a lower hot blast stove, moves downwards and upwards and contacts with the granular organic fertilizer, and heat is transferred to the granular organic fertilizer in various modes such as heat conduction, convection and radiation, so that the temperature of the granular organic fertilizer is continuously increased, moisture is continuously evaporated, the granular organic fertilizer which finally meets the moisture requirement is discharged from a lower outlet, and waste gas is pumped out by an induced draft fan and sent into a dust remover.
The cooler adopts a rotary drum cooler, and mainly comprises a cylinder body, a bracket, a transmission frame, a main motor, a speed reducer, a large gear ring, a pinion and a rolling belt, and is matched with a dust remover, an induced draft fan and the like. The dried granular organic fertilizer is added from the feeding end, the granular organic fertilizer is continuously turned up by a lifting plate arranged on the inner wall of the whole cylinder, and the air flow in the cylinder is quickened under the action of a draught fan, so that the granular organic fertilizer is uniformly cooled, and the cooled material flows out from the discharging hole.
The screening machine adopts a roller screening machine, and consists of a motor, a speed reducer, a roller device, a frame, a sealing cover, a feeding and discharging port and the like, wherein the roller device is obliquely arranged on the frame. After the granular organic fertilizer enters the roller device, the granular organic fertilizer on the screen surface is turned over and rolled due to the inclination and rotation of the roller device, the granular organic fertilizer with unqualified particle size is separated from top to bottom through the screen, the granular organic fertilizer with qualified particle size is discharged through the discharge port at the bottom of the rear end of the roller, and the unqualified granular organic fertilizer is discharged through the discharge port at the tail of the roller. Small particles with the particle size smaller than 3mm and large particles with the particle size larger than or equal to 3mm are screened out.
The return crusher adopts a fluted disc crusher, a wind wheel type high-speed rotating knife is selected for use, and the fixed knife is used for impact, shearing and grinding, so that the crushing effect is good. During crushing, the inner ring is crushed, the secondary crushing and the tertiary crushing are utilized, the organic fertilizer is crushed through the impact and friction of the fluted disc and the impact of the organic fertilizer, and the crushed material automatically enters the returning conveyer.
The dust remover adopts a cyclone dust remover and mainly comprises an inlet, an outlet, a cylinder part, a cone part and a dust collecting chamber. The dust-containing air flow enters the dust remover from the inlet along the tangential direction, then rotates along the wall from top to bottom, reaches the bottom of the cone, rotates upwards along the axis, and finally is discharged through the discharge pipe. When the dust-containing air flow rotates, the dust particles are pushed by inertial centrifugal force to move towards the outer wall, and the dust particles reaching the outer wall fall into the dust collecting chamber along the wall surface under the combined action of the air flow and the gravity.
The coating machine adopts a rotary coating machine and mainly comprises a conveyor, a stirring tank, an oil pump, a main machine and the like. When the granular organic fertilizer uniformly flows into the rotary coating machine to roll continuously, the prepared coating agent is sprayed on the surfaces of the compound fertilizer granules. The surface of the granular organic fertilizer is coated with a layer of uniform protective film, so that the salting-out effect and moisture absorption on the surface of the fertilizer are effectively prevented, the caking of the organic fertilizer can be effectively prevented, meanwhile, the brightness of the surface of the granule is improved, and partial trace elements can be properly added to improve the fertilizer efficiency.
The packaging machine adopts a full-automatic packaging machine. Integrates filling, metering, sealing, packaging and conveying. The main machine of the packing machine adopts a structure of a fast feeding auger, a medium feeding auger and a slow feeding auger and a special feeding auger, and can realize automatic error compensation and correction by frequency conversion control. Stable operation, convenient operation and accurate measurement.
The beneficial effects of the utility model are as follows: the organic fertilizer produced by using the biogas residues not only can solve the problem of treatment of the biogas residues, but also can realize the recycling of the biogas residues; the system has the advantages of high automation degree, simple and convenient operation, environment-friendly production, high treatment efficiency and high quality of organic fertilizer products.
Description of the drawings:
FIG. 1 is a schematic diagram of a system for producing organic fertilizer from biogas residues, which is provided by the embodiment of the utility model;
in fig. 1: 1-a decomposing workshop; 2-turning over and throwing machine; 3-a chain plate conveyor; 4, a batching machine; 5-a stirrer; 6, a mixing conveyor; 7, a pulverizer; 8-a fine material conveyor; 9-a granulator; 10-a particle conveyor; 11-a rounding machine; 12-a round particle conveyor; 13-a dryer; 14-hot blast stove; 15, a drying induced draft fan; 16-a dry material conveyor; 17-a cooling machine; 18, cooling induced draft fan; 19—a semi-finished product conveyor; 20-sieving machine; 21-a return grinder; 22-a return conveyor; 23-a dust remover; 24-a finished product conveyor; 25-a film coating machine; 26-screw conveyor; 27-packaging machine.
Fig. 2 is a process flow chart of a biogas residue organic fertilizer production system provided by the embodiment of the utility model.
The specific embodiment is as follows:
the present utility model will be described more fully hereinafter with reference to the accompanying drawings, in which details not shown in the present utility model are known to those skilled in the art.
The utility model provides a system for producing organic fertilizer by utilizing biogas residues. Comprising the following steps:
the device comprises a decomposing workshop, a turning machine, a chain plate conveyor, a batching machine, a stirrer, a mixing conveyor, a pulverizer, a fine material conveyor, a granulator, a granule conveyor, a round throwing machine, a round granule conveyor, a dryer, a hot blast stove, a drying induced draft fan, a dry material conveyor, a cooler, a cooling induced draft fan, a semi-finished product conveyor, a screening machine, a returning material pulverizer, a returning material conveyor, a dust remover, a finished product conveyor, a coating machine, a spiral conveyor and a packaging machine. Wherein the above-described device is commercially available.
The turner is arranged in the decomposing workshop; the chain plate conveyor is sequentially connected with the batching machine, the stirring machine, the mixing conveyor, the pulverizer, the fine material conveyor, the granulator, the particle conveyor, the rounding machine, the round particle conveyor, the dryer, the dry material conveyor, the cooler, the semi-finished product conveyor, the screening machine, the finished product conveyor, the coating machine, the screw conveyor and the packaging machine, the hot blast stove is sequentially connected with the dryer and the drying induced draft fan, the cooling induced draft fan is connected with the cooler, the material returning pulverizer is connected with the material returning conveyor, and the dust remover is connected with the dryer, the cooler and the screening machine.
The decomposing workshop is a fully-sealed workshop and is provided with deodorizing equipment. A fermentation tank is arranged in a workshop, and biogas residues are uniformly arranged in the tank by tools such as a loading forklift;
the turning machine adopts a wheel disc type turning machine to turn and thoroughly decompose biogas residues in the fermentation tanks, and is provided with a shifter, so that turning work of a plurality of fermentation tanks can be realized; after the decomposition is completed, pushing biogas residues to a conical hopper at the tail of the trough by a turning machine, and conveying the biogas residues to a batching machine from a hopper outlet through a chain plate conveyor;
the proportioning machine consists of a stock bin, a weighing belt and a control system, and auxiliary materials are accurately added by a computer according to the quality requirement of the organic fertilizer and the characteristics of biogas residues and then automatically fall into the stirring machine;
the mixer adopts a double-shaft mixer, and consists of a mixing shaft, a mixing blade, a horizontal mixing drum and a motor, wherein the mixture is fully and uniformly mixed in the mixer and is conveyed into the pulverizer through a mixing conveyor;
the pulverizer adopts a semi-wet material pulverizer, the mixture is crushed into fine particles through an upper rotor pulverizer, then the fine particles are conveyed to a lower rotor to be continuously pulverized into fine powder, and finally the fine particles are discharged from a discharge port and enter a granulator through a fine material conveyor;
the granulator adopts a rotary drum tooth stirring granulator and consists of a cylinder body, teeth stirring devices, a driving device and the like. Mixing, granulating, spheroidizing and compacting the fine materials under the stirring action of stirring teeth and a rotary drum, and enabling formed organic fertilizer particles to enter a rounding machine through a particle conveyor;
the rounding machine is formed by sequentially arranging three rounding cylinders, organic fertilizer particles form finished products with consistent particle size after being centrifugally rounded for many times, and the finished products are discharged from a discharge port and enter a dryer through a round particle conveyor;
the dryer adopts a rotary dryer, organic fertilizer particles are fed by a feeding port, flow in the dryer uniformly through a dispersing device under the action of gravity, hot gas generated by a hot blast stove contacts with the organic fertilizer particles, moisture is evaporated and is carried out by a draught fan, and the dried organic fertilizer particles enter a cooler through a dry material conveyor;
the cooler adopts a rotary drum cooler, dried organic fertilizer particles are added from a feeding end, a lifting plate arranged on the inner wall of a whole cylinder body continuously turns up the organic fertilizer particles, the heat of the organic fertilizer is brought out through air under the action of a draught fan, and the cooled organic fertilizer flows out from a discharging port and enters a screening machine through a semi-finished product conveyor;
the screening machine adopts a drum screening machine, after the granular organic fertilizer enters a drum device, the granular organic fertilizer turns over and rolls under the rotation action of a drum, the granular organic fertilizer with qualified grain size is discharged from a discharge port at the bottom of the rear end of the drum through a screen surface and enters a coating machine through a finished product conveyor, and the unqualified granular organic fertilizer is discharged from a discharge port at the tail of the drum through a screen and enters a return crusher;
the material returning pulverizer adopts a fluted disc pulverizer and adopts a wind wheel type high-speed rotary knife. The unqualified granular organic fertilizer is crushed into fine materials for three times and automatically enters a returning conveyor to return to the batching machine;
the dust remover adopts a cyclone dust remover, dust-containing air of a drying induced draft fan, a cooling induced draft fan and a screening machine is separated under the centrifugal action after entering the dust remover, the dust-removing air is discharged through a discharge pipe, dust falls into a dust collecting chamber, and the dust is periodically cleaned and sent into a batching machine;
the coating machine adopts a rotary coating machine and mainly comprises a conveyor, a stirring tank, an oil pump, a main machine and the like. Uniformly flowing the finished organic fertilizer into a rotary coating machine for rolling continuously, uniformly coating the surface of organic fertilizer particles with coating agent spray, and feeding the coated organic fertilizer particles into a packaging machine through a screw conveyor;
the packaging machine adopts a full-automatic packaging machine. And (5) conveying the finished granular organic fertilizer to a warehouse for stacking after the procedures of filling, metering, sealing, packaging and the like.
In conclusion, the utility model has the advantages of high automation degree, simple and convenient operation, high treatment efficiency and high product quality, is an efficient organic fertilizer production system, and can realize the recycling utilization of biogas residues.
The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be construed to cover any modification, variation, or improvement which comes within the spirit of the present utility model.
Claims (10)
1. A system for producing solid organic fertilizer particles by utilizing biogas residues is characterized by comprising: the device comprises a decomposing workshop, a turning machine, a chain plate conveyor, a batching machine, a stirrer, a mixing conveyor, a pulverizer, a fine material conveyor, a granulator, a granule conveyor, a round throwing machine, a round granule conveyor, a dryer, a hot blast stove, a drying induced draft fan, a dry material conveyor, a cooler, a cooling induced draft fan, a semi-finished product conveyor, a screening machine, a returning material pulverizer, a returning material conveyor, a dust remover, a finished product conveyor, a coating machine, a spiral conveyor and a packaging machine;
wherein the turner is arranged in a decomposing workshop; the biogas residues in the decomposing workshop are connected with a chain plate conveyor by adopting a turning machine; the chain plate conveyor discharge port is connected with the batching machine feed port, the batching machine feed port is connected with the crusher feed port sequentially through the stirrer and the mixing conveyor, the crusher feed port is connected with the granulator feed port through the fine material conveyor, the granulator discharge port is connected with the round throwing machine feed port through the granule conveyor, the round throwing machine discharge port is connected with the dryer feed port through the round granule conveyor, the dryer discharge port is connected with the cooler feed port through the dry material conveyor, the cooler discharge port is connected with the screening machine feed port through the semi-finished product conveyor, the screening machine large material outlet is connected with the coating machine feed port through the finished product conveyor, and the coating machine discharge port is connected with the packaging machine through the screw conveyor; the small material outlet of the sieving machine is connected with the feeding port of the returning charge pulverizer, and the discharging port of the returning charge pulverizer is connected with the batching machine through the returning charge conveyor;
one side of the dryer is connected with the hot blast stove, and the other side of the dryer is connected with the drying induced draft fan, so that hot air flow is formed in the dryer; one side of the cooling machine is connected with a cooling induced draft fan; the dryer, the cooler and the screening machine are all connected with the dust remover.
2. The system for producing solid organic fertilizer particles by utilizing biogas residues according to claim 1, wherein the decomposing field is a fully-sealed field and is provided with deodorizing equipment; a fermentation tank is arranged in the workshop, a conical hopper is arranged at the tail of the fermentation tank, and the hopper outlet of the turner is connected with a chain plate conveyor;
the turning machine adopts a wheel disc type turning machine and is provided with a shifting machine, so that a plurality of fermentation tanks share one machine; the wheel disc type turning machine is operated in a variable frequency mode, is hydraulically lifted and is fully automatically controlled, turning and feeding are integrated, and the turning and feeding functions of a material pile and a hopper are achieved.
3. The system for producing solid organic fertilizer particles by utilizing biogas residues according to claim 1, wherein the proportioning machine consists of a stock bin, a weighing belt and a control system, and has the functions of feeding, weighing and proportioning;
the stirrer adopts a double-shaft stirrer and consists of a stirring shaft, stirring blades, a horizontal stirring barrel and a motor, so that the mixed materials after the ingredients are fully and uniformly mixed in the stirrer;
the pulverizer adopts a semi-wet material pulverizer, the semi-wet material pulverizer adopts a high alloy wear-resistant hammer head and a bidirectional gap adjusting technology, two-stage rotor upper and lower two-stage pulverization is utilized, materials are processed into fine particles through an upper-stage rotor pulverizer, then the fine particles are conveyed to a lower-stage rotor to be continuously pulverized into fine powder to achieve the purposes of material powder and hammer powder, the pulverizing granularity reaches 20-30 meshes, and finally the fine particles are discharged from a discharge hole.
4. The system for producing solid particles of organic fertilizer by using biogas residues according to claim 1, wherein the granulator adopts a rotary drum tooth stirring granulator and consists of a cylinder, teeth stirring devices and a driving device.
5. The system for producing solid organic fertilizer particles by utilizing biogas residues according to claim 1, wherein the rounding machine is formed by sequentially arranging three rounding cylinders, and materials are discharged from a discharge port after being centrifugally rounded for a plurality of times; the rounding machine enables the grain diameter of the rounding particles to be 3-5mm.
6. The system for producing solid organic fertilizer particles by utilizing biogas residues according to claim 1, wherein the dryer is a rotary dryer and mainly comprises a cylinder, a front roller ring, a rear roller ring, a gear, a baffle roller, a drag roller, a pinion, a discharging part, a lifting plate, a speed reducer, a motor, a hot air flue, a feeding chute and a furnace body part, and is matched with a hot air furnace, a dust remover and an induced draft fan; the granular organic fertilizer is fed from a feeding port by a round granular conveyor, flows in the dryer by being uniformly distributed through a dispersing device under the action of gravity, hot gas is generated by a lower hot blast stove, moves downwards and upwards and contacts with the granular organic fertilizer, and heat is transferred to the granular organic fertilizer in various modes of heat conduction, convection and radiation, so that the temperature of the granular organic fertilizer is continuously increased, moisture is continuously evaporated, the granular organic fertilizer which finally meets the moisture requirement is discharged from a lower outlet, and waste gas is pumped out by an induced draft fan and sent into a dust remover.
7. The system for producing solid organic fertilizer particles by utilizing biogas residues according to claim 1, wherein the cooler is a rotary drum cooler and mainly comprises a cylinder body, a bracket, a transmission frame, a main motor, a speed reducer, a large gear ring, a pinion and a rolling belt, and is matched with a dust remover and an induced draft fan; the dried granular organic fertilizer is added from the feeding end, the granular organic fertilizer is continuously turned up by a lifting plate arranged on the inner wall of the whole cylinder, and the air flow in the cylinder is quickened under the action of a draught fan, so that the granular organic fertilizer is uniformly cooled, and the cooled material flows out from the discharging hole.
8. The system for producing solid organic fertilizer particles by utilizing biogas residues according to claim 1, wherein the screening machine adopts a drum screening machine and consists of a motor, a speed reducer, a drum device, a frame, a sealing cover and a feed inlet and discharge outlet, and the drum device is obliquely arranged on the frame; after the granular organic fertilizer enters the roller device, the granular organic fertilizer on the screen surface is turned over and rolled due to the inclination and rotation of the roller device, the granular organic fertilizer with unqualified particle size is separated from top to bottom through the screen, the granular organic fertilizer with qualified particle size is discharged through the discharge port at the bottom of the rear end of the roller, and the unqualified granular organic fertilizer is discharged through the discharge port at the tail of the roller.
9. The system for producing solid organic fertilizer particles by utilizing biogas residues according to claim 1, wherein the return crusher adopts a fluted disc crusher, a wind wheel type high-speed rotary knife is selected for impact, shearing and grinding, and the crushing effect is good; during crushing, the inner ring is crushed, the secondary crushing and the tertiary crushing are utilized, the organic fertilizer is crushed through the impact and friction of the fluted disc and the impact of the organic fertilizer, and the crushed material automatically enters the returning conveyer.
10. The system for producing solid particles of organic fertilizer by utilizing biogas residues according to claim 1, wherein the dust remover adopts a cyclone dust remover and mainly comprises an inlet, an outlet, a cylinder part, a conical part and a dust collecting chamber; the dust-containing air flow enters the dust remover from the inlet along the tangential direction, then rotates along the wall from top to bottom, reaches the bottom of the cone and rotates upwards along the axis, and finally is discharged through the discharge pipe; when the dust-containing air flow rotates, dust particles move to the outer wall under the pushing of inertial centrifugal force, and the dust particles reaching the outer wall fall into the dust collection chamber along the wall surface under the combined action of the air flow and gravity;
the coating machine adopts a rotary coating machine and mainly comprises a conveyor, a stirring tank, an oil pump and a host; when the granular organic fertilizer uniformly flows into the rotary coating machine to roll continuously, the prepared coating agent is sprayed into mist to be coated on the surfaces of compound fertilizer granules;
the packaging machine adopts a full-automatic packaging machine; integrates filling, metering, sealing, packaging and conveying.
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