CN111066624A - Method for preparing planting soil by processing organic solid waste and deep soil - Google Patents
Method for preparing planting soil by processing organic solid waste and deep soil Download PDFInfo
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- CN111066624A CN111066624A CN201911402796.2A CN201911402796A CN111066624A CN 111066624 A CN111066624 A CN 111066624A CN 201911402796 A CN201911402796 A CN 201911402796A CN 111066624 A CN111066624 A CN 111066624A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/60—Apparatus for preparing growth substrates or culture media
Abstract
The invention provides a method for preparing planting soil by processing organic solid waste and deep soil, which comprises the following steps: step S001, feeding; conveying the organic solid wastes to a first chain scraper conveyor, and conveying the deep soil to a second chain scraper conveyor; step S002, drying; the organic solid waste and the deep soil enter a drying tunnel to be dried; step S003, refining; conveying the organic solid waste to the tail end by using a first chain plate conveyor, and mixing the organic solid waste and deep soil in a ratio of 1: 3-5 when the organic solid waste falls onto a second chain plate conveyor; step S004, extrusion forming; and conveying the mixture of the organic solid wastes and the deep soil into extrusion forming equipment by using a second chain plate conveyor for extrusion forming to obtain the planting soil meeting the planting requirements. The method for preparing the planting soil by processing the organic solid waste and the deep soil overcomes the defect that the conventional organic solid waste and deep soil cannot be fully utilized.
Description
Technical Field
The invention relates to the field of garbage treatment, in particular to a method for preparing planting soil by processing organic solid waste and deep soil.
Background
With the continuous development of city construction in China, the pace of construction such as old city reconstruction, new rural construction, commodity house construction and the like is accelerated, and the amount of construction waste and deep soil generated every year is large. Therefore, comprehensive utilization of deep soil and construction waste is urgent, and a way is urgently needed to be found. At present, the treatment mode of China is mainly landfill or stacking, a simple drying treatment process is adopted for deep soil, and the viscosity of the deep soil is reduced by evaporating moisture of the deep soil and drying the deep soil. The organic matter content, the microorganism content and the nutrient content of the deep soil after drying are not changed greatly, the final destination is not changed, the resource utilization rate is less than 10 percent, the resource utilization rate of European Union countries reaches 50 percent every year, and the resource utilization rate of Korea and Japan reaches 97 percent.
Along with the improvement of living standard of people, the yield of the generated kitchen and kitchen waste is larger and larger, and the kitchen or kitchen waste can become organic solid waste after being treated. For the treatment mode of organic solid wastes of kitchen and kitchen wastes, the compost treatment technology is mainly adopted in China at present. Due to the factors of limited field, limited market and high acceptance and popularization difficulty, most of organic solid wastes are treated in a landfill incineration mode. As a result, a series of environmental pollution problems are generated, and the effective treatment of resource and harmlessness cannot be achieved.
With the reduction of land resources, the use of topsoil on mountains for greening or planting and the like is forbidden by the soil ministry of China, so that the planting soil is in more and more shortage at present and cannot meet the market demand. In summary, the integration and utilization of deep soil and organic solid wastes is a problem which needs to be solved urgently in the current society.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the problem of providing a method for processing and preparing planting soil by organic solid waste and deep soil, so as to overcome the defect that the conventional organic solid waste and deep soil cannot be fully utilized.
(II) technical scheme
In order to solve the technical problem, the invention provides a method for preparing planting soil by processing organic solid waste and deep soil, which comprises the following steps:
step S001, feeding; the soil preparation and planting system is provided with a first chain scraper conveyor and a second chain scraper conveyor, the first chain scraper conveyor and the second chain scraper conveyor are arranged in an upper-layer and a lower-layer mode and are arranged in a staggered mode, organic solid wastes are conveyed to the first chain scraper conveyor, and deep soil is conveyed to the second chain scraper conveyor. The feeding mode of double-layer dislocation of double-material is adopted, so that the precision structure is facilitated, and the follow-up drying and refining steps are convenient to carry out.
Step S002, drying; drying tunnels are sleeved outside the first chain scraper conveyor and the second chain scraper conveyor, a plurality of drying devices are installed on the drying tunnels, and organic solid wastes and deep soil enter the drying tunnels to be dried. Through the drying step, the material is reduced, the properties such as the viscosity of the material are changed, and the material can also be sterilized and disinfected.
Step S003, refining; conveying the organic solid waste to the tail end by the first chain plate conveyor, and mixing the organic solid waste and deep soil in a ratio of 1: 3-5 after the organic solid waste falls onto the second chain plate conveyor;
step S004, extrusion forming; and the second chain scraper conveyor is connected with the extrusion forming equipment, and the second chain scraper conveyor conveys the mixture of the organic solid wastes and the deep soil into the extrusion forming equipment for extrusion forming, so that the planting soil meeting the planting requirements is obtained. Through the extrusion forming step, the planting soil is convenient to transport, the planting is more favorable, and the effects of fertilizer preservation and moisture preservation are better.
Step S005, discharging and storing; and the extrusion forming equipment is connected with conveying equipment, and the conveying equipment conveys the planting soil in the step S004 to a warehouse for bagging and then stores the planting soil.
Further, the step S003 further includes the steps of:
step S0031, stirring; and a spiral conveyor is arranged between the second chain scraper conveyor and the extrusion forming equipment, and the spiral conveyor is used for stirring the mixture of the organic solid waste and the deep soil in the conveying process. Through the stirring step, the organic solid waste and the deep soil can be mixed more uniformly.
Further, in the step S002, the drying temperature is 300-450 ℃, the temperature fluctuation degree is less than or equal to 1 ℃, the temperature uniformity is less than or equal to 2.5 ℃, and the drying time is 10-30 min; the drying equipment is a direct injection type burner, and a plurality of blowers matched with the drying equipment are arranged on the drying tunnel. The direct-injection type combustor is matched with the air blower, so that the uniformity of the temperature in the cavity of the direct-injection type combustor is guaranteed, the heat utilization rate is improved, and the drying effect is better. After drying, the water content of the deep soil and the organic solid waste is 20-30 percent.
Further, in the step S004, the mixture of the organic solid waste and the deep soil is extruded and formed into particles with a particle size of less than or equal to 30 mm. The water content of the synthesized planting soil is 25% -35%, dust can be prevented, the content of organic matters is 10% -30%, the pH value is 6-7, and the EC is 0.2-0.5 ms/cm.
Further, the conveying equipment is a plate chain conveyor. In the step S001, the water content of the organic solid waste is 70%, and the organic matter content is more than or equal to 70%; the deep soil has water content of 30% and organic matter content not more than 5%.
(III) advantageous effects
According to the method for preparing the planting soil by processing the organic solid waste and the deep soil, the deep soil and the organic solid waste are synthesized into the planting soil according to a certain proportion through the steps of feeding, drying, refining and extrusion forming, the organic matter content is high, the porosity of the soil is high, the ventilation rate is good, and the method completely meets the index requirements of planting nursery stocks and lawn vegetation, fundamentally solves the problem of the direction of the deep soil, changes the traditional treatment process, provides a pollution-free and more environment-friendly treatment mode, changes waste into valuable, and realizes the maximum resource utilization of the waste; the process system has complete functions, small occupied space, low energy consumption, high efficiency, easy acceptance by the public and large market development space; overcomes the defects that the prior organic solid wastes and deep soil can not be fully utilized.
Drawings
FIG. 1 is a flow chart of a method for preparing planting soil by processing organic solid waste and deep soil according to the invention;
FIG. 2 is a schematic structural diagram of a method for preparing planting soil by processing organic solid waste and deep soil according to the invention;
the corresponding part names for the various reference numbers in the figures are: 1. a first apron conveyor; 2. a second apron conveyor; 3. a drying tunnel; 4. a drying device; 5. an extrusion molding apparatus; 6. a delivery device; 7. a warehouse; 8. a blower; 9. a screw conveyor.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, the present invention provides a method for preparing planting soil by processing organic solid wastes and deep soil, comprising the steps of:
step S001, feeding; install first drag chain conveyor 1 and second drag chain conveyor 2 in the preparation soil planting system, first drag chain conveyor 1 is upper and lower two-layer and crisscross setting with second drag chain conveyor 2. The organic solid waste is in a bonding state, the water content is 70 percent, and the organic matter content is more than or equal to 70 percent; the deep soil is a caking lump, the water content is 30 percent, and the organic matter content is less than or equal to 5 percent; conveying the organic solid wastes to a first chain plate conveyor 1, and conveying the deep soil to a second chain plate conveyor 2.
Step S002, drying; drying tunnels 3 are sleeved outside the first chain plate conveyor 1 and the second chain plate conveyor 2, a plurality of drying devices 4 are installed on the drying tunnels 3, and the drying devices 4 are direct-injection combustors of a methane source, so that the drying temperature and the temperature fluctuation degree meet the requirements. A plurality of air blowers 8 matched with the drying equipment 4 are installed on the drying tunnel 3, and the air blowers 8 are matched with the drying equipment 4, so that the temperature in the drying tunnel 3 is more uniform, and the heat utilization rate is improved. The organic solid waste and deep soil enter a drying tunnel 3 to be dried, the drying temperature is 300-450 ℃, the temperature fluctuation degree is less than or equal to 1 ℃, the temperature uniformity is less than or equal to 2.5 ℃, the drying time is 10-30 min, the drying time is in direct proportion to the water content of the initial material, and the appropriate drying time can be selected according to the specific conditions of the material during actual use. After drying, the water content of the deep soil and the organic solid waste is 20-30%. Through the drying step, the material is reduced, the properties such as viscosity of the material can be changed, and sterilization and disinfection can be realized.
Step S003, refining; the first chain scraper conveyor 1 conveys the organic solid wastes to the tail end, the organic solid wastes fall onto the second chain scraper conveyor 2 to be mixed with deep soil according to the proportion of 1: 3-5, and a more proper proportion can be selected to be mixed according to the change of materials during actual use; the mixing ratio of the organic solid waste and the deep soil is further controlled by adjusting the conveying speed of the first chain scraper conveyor 1 and the second chain scraper conveyor 2.
Step S004, extrusion forming; the second chain plate conveyor 2 is connected with the extrusion forming equipment 5, and the second chain plate conveyor 2 conveys the mixture of the organic solid wastes and the deep soil into the extrusion forming equipment 5 for extrusion forming, so that the planting soil meeting the planting requirements is obtained. In the embodiment, the mixture of the organic solid wastes and the deep soil is extruded into a granular shape with the grain size of less than or equal to 30mm, and the granular mixture is more convenient to transport, is beneficial to planting and is beneficial to fertilizer preservation and moisture preservation; the mixture can be extruded into other shapes according to the actual production requirements. The water content of the synthesized planting soil is 25-35%, dust can be prevented, the content of organic matters is 10-30%, the pH value is 6-7, and the EC (soil conductivity) is 0.2-0.5 ms/cm.
Step S005, discharging and storing; the extrusion forming device 5 is connected with a conveying device 6, the conveying device 6 is a plate chain conveyor, and the conveying device 6 conveys the planting soil in the step S004 to a warehouse 7 for bagging and storing.
In order to complete the process, the step S003 further includes the steps of:
step S0031, stirring; a screw conveyor 9 is arranged between the second chain scraper conveyor 2 and the extrusion forming equipment 5, and the screw conveyor 9 stirs the mixture of the organic solid waste and the deep soil in the conveying process. Through the stirring step, the organic solid waste and the deep soil can be mixed more uniformly.
Most of the existing organic solid wastes are treated by adopting a landfill incineration mode, and because the organic solid wastes have more impurities and uncontrollable harmful substances, the organic solid wastes cannot be directly used for planting soil. The existing deep soil is generally treated in a landfill mode, and the deep soil cannot be directly used for planting soil because the content of organic matters in the deep soil is low. The method can mix the organic solid waste and the deep soil in proportion to prepare the planting soil, the synthesized planting soil completely meets all indexes of the planting soil, the waste is changed into the valuable, and the method has good practicability and popularization value.
According to the method for preparing the planting soil by processing the machine-solid waste and the deep soil, the process not only can enable the machine-solid waste to have a better development direction in the future, but also can change defects which are not beneficial to promoting new roots of seedlings due to low organic matter content, low microorganisms and low porosity of the deep soil. Therefore, the synthesis process system can be implemented and operated, the synthesized greening planting soil can be widely used for seedling cultivation, lawn vegetation and the like, the purposes of resource utilization, reduction and harmless treatment are achieved, the national ecological environment protection policy is responded, and the market development prospect is good.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the technical principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. A method for preparing planting soil by processing organic solid wastes and deep soil is characterized by comprising the following steps:
step S001, feeding; a first chain plate conveyor (1) and a second chain plate conveyor (2) are installed in the planting soil preparation system, the first chain plate conveyor (1) and the second chain plate conveyor (2) are arranged in an upper-layer and lower-layer mode and are arranged in a staggered mode, organic solid wastes are conveyed to the first chain plate conveyor (1), and deep soil is conveyed to the second chain plate conveyor (2);
step S002, drying; a drying tunnel (3) is sleeved outside the first chain plate conveyor (1) and the second chain plate conveyor (2), a plurality of drying devices (4) are installed on the drying tunnel (3), and organic solid wastes and deep soil enter the drying tunnel (3) for drying;
step S003, refining; the first chain scraper conveyor (1) conveys the organic solid waste to the tail end, and the organic solid waste falls onto the second chain scraper conveyor (2) and is mixed with deep soil according to the proportion of 1: 3-5;
step S004, extrusion forming; the second chain scraper conveyor (2) is connected with the extrusion forming equipment (5), and the second chain scraper conveyor (2) conveys the mixture of the organic solid wastes and the deep soil into the extrusion forming equipment (5) for extrusion forming, so that the planting soil meeting the planting requirements is obtained.
2. The method for preparing planting soil through organic solid waste and deep soil processing according to claim 1, wherein the step S003 further comprises the steps of:
step S0031, stirring; a spiral conveyor (9) is arranged between the second chain scraper conveyor (2) and the extrusion forming equipment (5), and the spiral conveyor (9) is used for stirring the mixture of the organic solid waste and the deep soil in the conveying process.
3. The method for preparing planting soil through organic solid waste and deep soil processing according to claim 1, further comprising the following steps:
step S005, discharging and storing; and the extrusion forming equipment (5) is connected with conveying equipment (6), and the conveying equipment (6) conveys the planting soil in the step S004 to a warehouse (7) for internal bagging and then storing.
4. The method for preparing planting soil through organic solid waste and deep soil processing according to claim 1, wherein the method comprises the following steps: in the step S002, the drying temperature is 300-450 ℃, the temperature fluctuation degree is less than or equal to 1 ℃, the temperature uniformity is less than or equal to 2.5 ℃, and the drying time is 10-30 min.
5. The method for preparing planting soil through organic solid waste and deep soil processing according to claim 1, wherein the method comprises the following steps: the drying equipment (4) is a direct injection type burner, and a plurality of blowers (8) matched with the drying equipment (4) are arranged on the drying tunnel (3).
6. The method for preparing planting soil through organic solid waste and deep soil processing according to claim 1, wherein the method comprises the following steps: in the step S002, after drying, the water content of the deep soil and the organic solid waste is 20-30%.
7. The method for preparing planting soil through organic solid waste and deep soil processing according to claim 1, wherein the method comprises the following steps: in the step S004, the mixture of the organic solid waste and the deep soil is extruded and formed into particles with the particle size of less than or equal to 30 mm.
8. The method for preparing planting soil through organic solid waste and deep soil processing according to claim 1, wherein the method comprises the following steps: in the step S004, the water content of the planting soil is 25% -35%, the organic matter content is 10% -30%, the pH is 6-7, and the EC is 0.2-0.5 ms/cm.
9. The method for preparing planting soil through organic solid waste and deep soil processing according to claim 3, wherein the method comprises the following steps: the conveying equipment (6) is a plate chain conveyor.
10. The method for preparing planting soil through organic solid waste and deep soil processing according to claim 1, wherein the method comprises the following steps: in the step S001, the water content of the organic solid waste is 70%, and the organic matter content is 70%; the deep soil has water content of 30% and organic matter content not more than 5%.
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| CN201911402796.2A CN111066624A (en) | 2019-12-31 | 2019-12-31 | Method for preparing planting soil by processing organic solid waste and deep soil |
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| CN201911402796.2A CN111066624A (en) | 2019-12-31 | 2019-12-31 | Method for preparing planting soil by processing organic solid waste and deep soil |
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Patent Citations (7)
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| CN205797979U (en) * | 2016-07-11 | 2016-12-14 | 董小丽 | A kind of kitchen refuse processing apparatus |
| CN107211765A (en) * | 2017-05-25 | 2017-09-29 | 陈橹达 | The method that cultivation ecological nutrition soil is manufactured using city solid waste |
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Application publication date: 20200428 |