CN112625693A - Production process of organic contaminated soil improvement particles - Google Patents
Production process of organic contaminated soil improvement particles Download PDFInfo
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- CN112625693A CN112625693A CN202110020008.4A CN202110020008A CN112625693A CN 112625693 A CN112625693 A CN 112625693A CN 202110020008 A CN202110020008 A CN 202110020008A CN 112625693 A CN112625693 A CN 112625693A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of organic contaminated soil, and discloses a production process of organic contaminated soil improvement particles, which has higher production efficiency, is simpler, saves relatively cost and is more convenient for operators by adopting a preparation mode compared with the existing production process of the organic contaminated soil improvement particles, and the production process of the organic contaminated soil improvement particles has the advantages that after materials are put into a storage tank according to uniform proportion, the storage pipe needs to be opened regularly to watch the internal condition when the storage pipe is kept still, when obvious precipitation is found to be generated in the storage tank, a part of water in the storage tank needs to be taken out by a vessel, and then stirring equipment is utilized to mix the water, so that the materials are prevented from being not viscous enough to cause unsmooth subsequent forming process, resulting in the need for rework and waste.
Description
Technical Field
The invention relates to the technical field of organic contaminated soil, in particular to a production process of organic contaminated soil improvement particles.
Background
The soil conditioner is also called soil conditioner, and is a material which can improve the physical property of soil and promote the nutrient absorption of crops, but does not provide plant nutrients.
The soil amendment utility principle is to bind many small soil particles to form large, water-stable aggregates. The method is widely applied to the aspects of preventing soil from being corroded, reducing water evaporation or excessive transpiration of the soil, saving irrigation water and promoting healthy growth of plants.
The existing organic contaminated soil improvement particles are inconvenient in the manufacturing process and increase the manufacturing cost due to more working procedures in the production process.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a production process of organic contaminated soil improvement particles, and solves the problems.
(II) technical scheme
In order to achieve the above purpose, the invention provides the following technical scheme: a production process of organic contaminated soil improvement particles comprises the following steps:
s1: preparing 1-5 parts of peat, 1-5 parts of lignite, 1-5 parts of weathered coal, 1-5 parts of lime, 1-5 parts of gypsum, 1-5 parts of vermiculite, 1-5 parts of zeolite and 1-5 parts of perlite.
S2: after the materials are prepared, the materials are put into a storage tank according to a uniform proportion, 20 parts of water is added, and then the material pipe is placed in a cool place to stand for 24 hours, and the stand is needed for 20 hours at least.
S3: then take out the holding vessel, the material in the pipe is thick at this moment, and after the material becomes thick, take out the material, put into agitating unit, stir it, and in the stirring process, need stir from single direction, the speed of stirring can not be too fast, and the rotational speed of agitated vessel (mixing) shaft need keep in two revolutions per second in the stirring process, carries out abundant stirring with the material and fuses.
S4: during the stirring process, 5 parts of sandy soil is required to be added, and the sandy soil cannot be added at one time, and is required to be added along the stirring direction, otherwise, the materials are agglomerated and cannot be fully mixed.
S5: after the materials are stirred, the materials are taken out and then are molded, the materials can be molded by a mold or extrusion molding, and then the materials are prepared into spherical or elliptical particles, and finally the organic polluted soil improvement particles are prepared.
Preferably, when adopting extrusion equipment preparation organic contaminated soil improvement granule, need add in the receiver bottom of bottom, rubber and partial sandy soil granule when adopting the mould to prepare, need coat the one deck sandy soil on the inner wall of last die cavity and lower die cavity, prevent that the material from gluing, be difficult to take off after the shaping.
Preferably, after the material is prepared into the ball graininess, need heat it, with its inside moisture evaporation, when adopting extrusion equipment preparation organic contaminated soil improvement granule, the granule falls into after accomodating the box the inside, directly places the receiver and air-dries the department that ventilates, perhaps places it and insolate under the sun, need be with time control in ten at least hours when air-drying, place in the sun when insolateing, under the sufficient circumstances of sunshine, only need five hours can, it is hard to keep the granule.
Preferably, after the material is prepared into the spherical particle shape, the material needs to be heated, the water in the material is evaporated, when the mold is adopted for preparation, the mold is directly placed at a ventilation position for air drying, after the air drying is completed, the mold is opened, the particles are taken out, or the mold is placed in an adding device for heating the mold, so that the water in the particles is fully lost, and the hardness of the particles is kept.
Preferably, after the materials are put into the storage tank according to the uniform proportion, when the storage pipe is kept still, the storage pipe needs to be opened periodically to watch the internal situation, after obvious precipitation is found in the storage tank, a part of water in the storage tank needs to be taken out by a vessel, and then the water is mixed by using a stirring device, so that the materials are prevented from being viscous insufficiently.
Preferably, during the process of adding the sandy soil, a part of clay can be properly counted, the viscosity of subsequent particles is kept, the clay is not added too much, and the clay is kept at 1-2 parts.
Preferably, after preparing peat, lignite, weathered coal, lime, gypsum, vermiculite, zeolite and perlite, grinding the peat, the lignite, the weathered coal, the lime, the gypsum, the vermiculite, the zeolite and the perlite by using grinding equipment to break the peat, the lignite, the weathered coal, the lime, the gypsum, the vermiculite, the zeolite and the perlite, keeping the materials to be powdery, and performing the breaking process according to the requirement, wherein the breaking process cannot be performed uniformly.
Preferably, part of the straw polysaccharide material cellulose material can be properly added in the stirring process, but the amount of the straw polysaccharide material cellulose material is not excessive and is kept between 1 part and 1.5 parts.
(III) advantageous effects
Compared with the prior art, the invention provides a production process of organic contaminated soil improvement particles, which has the following beneficial effects:
1. this production technology of organic contaminated soil improvement granule, in this technology, the preparation mode of adoption, the production technology of current organic contaminated soil improvement granule is compared, and production efficiency is higher, and simpler, practices thrift the cost relatively, and is more convenient to operating personnel.
2. This organic contaminated soil improves production technology of granule, after putting into the holding vessel with the material according to even proportion, when the storage pipe of stewing, need regularly open the storage pipe and watch its inside condition, after producing obvious sediment in the discovery holding vessel, need take out partly with the water of household utensils in with the holding vessel, then reuse agitated vessel mixes it, prevent that the material from gluing thick inadequately, lead to unsmooth among the follow-up forming process, cause the condition that needs the refabrication, cause the waste.
3. This production technology of organic contaminated soil improvement granule, when adopting extrusion equipment preparation organic contaminated soil improvement granule, need in the receiver bottom of bottom in addition, rubber and partial sandy soil granule when adopting the mould to prepare, need coat on the inner wall of last die cavity and lower die cavity one deck sandy soil, prevent that the material from sticking, be difficult to take off after the shaping.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: a production process of organic contaminated soil improvement particles comprises the following steps:
s1: preparing 1 part of peat, 1 part of lignite, 1 part of weathered coal, 1 part of lime, 1 part of gypsum, 1 part of vermiculite, 1 part of zeolite and 1 part of perlite.
S2: after the materials are prepared, the materials are put into a storage tank according to a uniform proportion, 20 parts of water is added, and then the material pipe is placed in a cool place to stand for 24 hours, and the stand is needed for 20 hours at least.
S3: then take out the holding vessel, the material in the pipe is thick at this moment, and after the material becomes thick, take out the material, put into agitating unit, stir it, and in the stirring process, need stir from single direction, the speed of stirring can not be too fast, and the rotational speed of agitated vessel (mixing) shaft need keep in two revolutions per second in the stirring process, carries out abundant stirring with the material and fuses.
S4: during the stirring process, 5 parts of sandy soil is required to be added, and the sandy soil cannot be added at one time, and is required to be added along the stirring direction, otherwise, the materials are agglomerated and cannot be fully mixed.
S5: after the materials are stirred, the materials are taken out and then are molded, the materials can be molded by a mold or extrusion molding, and then the materials are prepared into spherical or elliptical particles, and finally the organic polluted soil improvement particles are prepared.
Adopt extrusion equipment preparation organic contaminated soil improvement granule in the time, need be in the receiver bottom of bottom in addition, rubber and partial sandy soil granule when adopting the mould to prepare, need scribble one deck sandy soil on the inner wall of last die cavity and lower die cavity, prevent that the material from sticking, be difficult to take off after the shaping.
After the material is prepared into the ball graininess, need heat it, with its inside moisture evaporation, when adopting extrusion equipment preparation organic contaminated soil improvement granule, the granule falls into after accomodating the box the inside, directly places the receiver and air-dries the department that ventilates, perhaps places it and insolate under the sun, need control the time in ten hours at least when air-drying, place in the sun when insolate, under the sufficient circumstances of sunshine, only need five hours can, it is hard to keep the granule.
After the material is prepared into the spherical particle shape, the material needs to be heated, the water inside the material is evaporated, when a mold is adopted for preparation, the mold is directly placed at a ventilation position for air drying, after the air drying is completed, the mold is opened and the particle is taken out, or the mold is placed in an adding device for heating the mold, so that the water in the particle is fully lost, and the particle hardness is kept.
After putting into the holding vessel with the material according to even proportion, when the holding vessel of stewing, need regularly open the holding vessel and watch its inside condition, after producing obvious sediment in finding the holding vessel, need take out partly with the water of household utensils in with the holding vessel, then reuse agitated vessel and mix it, prevent that the material is thick inadequately.
In the process of adding the sandy soil, partial clay can be properly counted, the viscosity of subsequent particles is kept, the clay is not added too much, and the clay is kept at 1 part.
After preparing peat, lignite, weathered coal, lime, gypsum, vermiculite, zeolite and perlite, grinding equipment is needed to be adopted to smash the peat, the lignite, the weathered coal, the lime, the gypsum, the vermiculite, the zeolite and the perlite, the materials are kept to be powdery, and the materials are needed to be smashed in a unified way in the smashing process.
Can be appropriate add partial straw class polysaccharide material cellulose material in stirring the in-process, but the weight can not be too much, keep 1 can, in this technology, the preparation method of adoption compares the current production technology of organic contaminated soil improvement granule, and production efficiency is higher, and simpler, practices thrift the cost relatively, and is more convenient to operating personnel.
Example two: a production process of organic contaminated soil improvement particles comprises the following steps:
s1: preparing 2 parts of peat, 3 parts of lignite, 2 parts of weathered coal, 2 parts of lime, 3 parts of gypsum, 4 parts of vermiculite, 2 parts of zeolite and 4 parts of perlite.
S2: after the materials are prepared, the materials are put into a storage tank according to a uniform proportion, 20 parts of water is added, and then the material pipe is placed in a cool place to stand for 24 hours, and the stand is needed for 20 hours at least.
S3: then take out the holding vessel, the material in the pipe is thick at this moment, and after the material becomes thick, take out the material, put into agitating unit, stir it, and in the stirring process, need stir from single direction, the speed of stirring can not be too fast, and the rotational speed of agitated vessel (mixing) shaft need keep in two revolutions per second in the stirring process, carries out abundant stirring with the material and fuses.
S4: during the stirring process, 5 parts of sandy soil is required to be added, and the sandy soil cannot be added at one time, and is required to be added along the stirring direction, otherwise, the materials are agglomerated and cannot be fully mixed.
S5: after the materials are stirred, the materials are taken out and then are molded, the materials can be molded by a mold or extrusion molding, and then the materials are prepared into spherical or elliptical particles, and finally the organic polluted soil improvement particles are prepared.
Adopt extrusion equipment preparation organic contaminated soil improvement granule in the time, need be in the receiver bottom of bottom in addition, rubber and partial sandy soil granule when adopting the mould to prepare, need scribble one deck sandy soil on the inner wall of last die cavity and lower die cavity, prevent that the material from sticking, be difficult to take off after the shaping.
After the material is prepared into the ball graininess, need heat it, with its inside moisture evaporation, when adopting extrusion equipment preparation organic contaminated soil improvement granule, the granule falls into after accomodating the box the inside, directly places the receiver and air-dries the department that ventilates, perhaps places it and insolate under the sun, need control the time in ten hours at least when air-drying, place in the sun when insolate, under the sufficient circumstances of sunshine, only need five hours can, it is hard to keep the granule.
After the material is prepared into the spherical particle shape, the material needs to be heated, the water inside the material is evaporated, when a mold is adopted for preparation, the mold is directly placed at a ventilation position for air drying, after the air drying is completed, the mold is opened and the particle is taken out, or the mold is placed in an adding device for heating the mold, so that the water in the particle is fully lost, and the particle hardness is kept.
After putting into the holding vessel with the material according to even proportion, when the holding vessel of stewing, need regularly open the holding vessel and watch its inside condition, after producing obvious sediment in finding the holding vessel, need take out partly with the water of household utensils in with the holding vessel, then reuse agitated vessel and mix it, prevent that the material is thick inadequately.
In the process of adding the sandy soil, partial clay can be properly counted, the viscosity of subsequent particles is kept, the clay is not added too much, and the clay is kept at 1 part.
After preparing peat, lignite, weathered coal, lime, gypsum, vermiculite, zeolite and perlite, grinding equipment is needed to be adopted to smash the peat, the lignite, the weathered coal, the lime, the gypsum, the vermiculite, the zeolite and the perlite, the materials are kept to be powdery, and the materials are needed to be smashed in a unified way in the smashing process.
Can be appropriate add partial straw class polysaccharide material cellulose material in stirring the in-process, but the weight can not be too much, keep 1 can, in this technology, the preparation method of adoption compares the current production technology of organic contaminated soil improvement granule, and production efficiency is higher, and simpler, practices thrift the cost relatively, and is more convenient to operating personnel.
Example three: a production process of organic contaminated soil improvement particles comprises the following steps:
s1: preparing 4 parts of peat, 1 part of lignite, 3 parts of weathered coal, 1 part of lime, 1 part of gypsum, 5 parts of vermiculite, 1 part of zeolite and 2 parts of perlite.
S2: after the materials are prepared, the materials are put into a storage tank according to a uniform proportion, 20 parts of water is added, and then the material pipe is placed in a cool place to stand for 24 hours, and the stand is needed for 20 hours at least.
S3: then take out the holding vessel, the material in the pipe is thick at this moment, and after the material becomes thick, take out the material, put into agitating unit, stir it, and in the stirring process, need stir from single direction, the speed of stirring can not be too fast, and the rotational speed of agitated vessel (mixing) shaft need keep in two revolutions per second in the stirring process, carries out abundant stirring with the material and fuses.
S4: during the stirring process, 5 parts of sandy soil is required to be added, and the sandy soil cannot be added at one time, and is required to be added along the stirring direction, otherwise, the materials are agglomerated and cannot be fully mixed.
S5: after the materials are stirred, the materials are taken out and then are molded, the materials can be molded by a mold or extrusion molding, and then the materials are prepared into spherical or elliptical particles, and finally the organic polluted soil improvement particles are prepared.
Adopt extrusion equipment preparation organic contaminated soil improvement granule in the time, need be in the receiver bottom of bottom in addition, rubber and partial sandy soil granule when adopting the mould to prepare, need scribble one deck sandy soil on the inner wall of last die cavity and lower die cavity, prevent that the material from sticking, be difficult to take off after the shaping.
After the material is prepared into the ball graininess, need heat it, with its inside moisture evaporation, when adopting extrusion equipment preparation organic contaminated soil improvement granule, the granule falls into after accomodating the box the inside, directly places the receiver and air-dries the department that ventilates, perhaps places it and insolate under the sun, need control the time in ten hours at least when air-drying, place in the sun when insolate, under the sufficient circumstances of sunshine, only need five hours can, it is hard to keep the granule.
After the material is prepared into the spherical particle shape, the material needs to be heated, the water inside the material is evaporated, when a mold is adopted for preparation, the mold is directly placed at a ventilation position for air drying, after the air drying is completed, the mold is opened and the particle is taken out, or the mold is placed in an adding device for heating the mold, so that the water in the particle is fully lost, and the particle hardness is kept.
After putting into the holding vessel with the material according to even proportion, when the holding vessel of stewing, need regularly open the holding vessel and watch its inside condition, after producing obvious sediment in finding the holding vessel, need take out partly with the water of household utensils in with the holding vessel, then reuse agitated vessel and mix it, prevent that the material is thick inadequately.
In the process of adding the sandy soil, partial clay can be properly counted, the viscosity of subsequent particles is kept, the clay is not added too much, and the clay is kept at 1 part.
After preparing peat, lignite, weathered coal, lime, gypsum, vermiculite, zeolite and perlite, grinding equipment is needed to be adopted to smash the peat, the lignite, the weathered coal, the lime, the gypsum, the vermiculite, the zeolite and the perlite, the materials are kept to be powdery, and the materials are needed to be smashed in a unified way in the smashing process.
Can be appropriate add partial straw class polysaccharide material cellulose material in stirring the in-process, but the weight can not be too much, keep 1 can, in this technology, the preparation method of adoption compares the current production technology of organic contaminated soil improvement granule, and production efficiency is higher, and simpler, practices thrift the cost relatively, and is more convenient to operating personnel.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A production process of organic contaminated soil improvement particles is characterized by comprising the following steps: the method comprises the following steps:
s1: preparing 1-5 parts of peat, 1-5 parts of lignite, 1-5 parts of weathered coal, 1-5 parts of lime, 1-5 parts of gypsum, 1-5 parts of vermiculite, 1-5 parts of zeolite and 1-5 parts of perlite;
s2: after preparing the materials, putting the materials into a storage tank according to a uniform proportion, then adding 20 parts of water, and then placing a material pipe into a cool place to stand for 24 hours, wherein the stand for 20 hours is minimally needed;
s3: then taking out the storage tank, taking out the materials in the pipe to be viscous at the moment, taking out the materials after the materials become viscous, putting the materials into a stirring device, stirring the materials, wherein the stirring speed cannot be too high because the stirring needs to be carried out from a single direction in the stirring process, and the rotating speed of a stirring shaft of stirring equipment needs to be kept about one second and two turns in the stirring process, so that the materials are fully stirred and fused;
s4: in the stirring process, 5 parts of sandy soil is required to be added, the sandy soil cannot be added at one time, the sandy soil is required to be added along the stirring direction, otherwise, the materials are agglomerated and cannot be fully mixed;
s5: after the materials are stirred, the materials are taken out and then are molded, the materials can be molded by a mold or extrusion molding, and then the materials are prepared into spherical or elliptical particles, and finally the organic polluted soil improvement particles are prepared.
2. The process for producing organic contaminated soil improvement particles according to claim 1, wherein: adopt extrusion equipment preparation organic contaminated soil improvement granule in the time, need be in the receiver bottom of bottom in addition, rubber and partial sandy soil granule when adopting the mould to prepare, need scribble one deck sandy soil on the inner wall of last die cavity and lower die cavity, prevent that the material from sticking, be difficult to take off after the shaping.
3. The process for producing organic contaminated soil improvement particles according to claim 2, wherein: after the material is prepared into the ball graininess, need heat it, with its inside moisture evaporation, when adopting extrusion equipment preparation organic contaminated soil improvement granule, the granule falls into after accomodating the box the inside, directly places the receiver and air-dries the department that ventilates, perhaps places it and insolate under the sun, need control the time in ten hours at least when air-drying, place in the sun when insolate, under the sufficient circumstances of sunshine, only need five hours can, it is hard to keep the granule.
4. The process for producing organic contaminated soil improvement particles according to claim 2, wherein: after the material is prepared into the spherical particle shape, the material needs to be heated, the water inside the material is evaporated, when a mold is adopted for preparation, the mold is directly placed at a ventilation position for air drying, after the air drying is completed, the mold is opened and the particle is taken out, or the mold is placed in an adding device for heating the mold, so that the water in the particle is fully lost, and the particle hardness is kept.
5. The process for producing organic contaminated soil improvement particles according to claim 1, wherein: after putting into the holding vessel with the material according to even proportion, when the holding vessel of stewing, need regularly open the holding vessel and watch its inside condition, after producing obvious sediment in finding the holding vessel, need take out partly with the water of household utensils in with the holding vessel, then reuse agitated vessel and mix it, prevent that the material is thick inadequately.
6. The process for producing organic contaminated soil improvement particles according to claim 1, wherein: in the process of adding the sandy soil, partial clay can be properly counted to keep the viscosity of subsequent particles, the clay is not added too much, and the clay is kept at 1-2 parts.
7. The process for producing organic contaminated soil improvement particles according to claim 1, wherein: after preparing peat, lignite, weathered coal, lime, gypsum, vermiculite, zeolite and perlite, grinding equipment is needed to be adopted to smash the peat, the lignite, the weathered coal, the lime, the gypsum, the vermiculite, the zeolite and the perlite, the materials are kept to be powdery, and the materials are needed to be smashed in a unified way in the smashing process.
8. The process for producing organic contaminated soil improvement particles according to claim 1, wherein: a part of straw polysaccharide material cellulose material can be properly added in the stirring process, but the amount of the straw polysaccharide material cellulose material can not be too much and is kept between 1 part and 1.5 parts.
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| CN202110020008.4A CN112625693A (en) | 2021-01-07 | 2021-01-07 | Production process of organic contaminated soil improvement particles |
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| CN202110020008.4A CN112625693A (en) | 2021-01-07 | 2021-01-07 | Production process of organic contaminated soil improvement particles |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1830587A (en) * | 2005-09-16 | 2006-09-13 | 上海文绿生物科技有限公司 | Modifier used for soil pollution treatment and soil natural activity restoring and its formulation |
| CN104232099A (en) * | 2014-05-30 | 2014-12-24 | 昆明绿色中迅生物有限公司 | Modifier for acidic soil |
| CN105149340A (en) * | 2015-08-27 | 2015-12-16 | 江苏沃野生物科技发展有限公司 | Production process of organic polluted soil restoration agent |
| CN106187573A (en) * | 2016-06-30 | 2016-12-07 | 哈尔滨尼亚农业有限公司 | The soil conditioner of a kind of ore and preparation method |
-
2021
- 2021-01-07 CN CN202110020008.4A patent/CN112625693A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1830587A (en) * | 2005-09-16 | 2006-09-13 | 上海文绿生物科技有限公司 | Modifier used for soil pollution treatment and soil natural activity restoring and its formulation |
| CN104232099A (en) * | 2014-05-30 | 2014-12-24 | 昆明绿色中迅生物有限公司 | Modifier for acidic soil |
| CN105149340A (en) * | 2015-08-27 | 2015-12-16 | 江苏沃野生物科技发展有限公司 | Production process of organic polluted soil restoration agent |
| CN106187573A (en) * | 2016-06-30 | 2016-12-07 | 哈尔滨尼亚农业有限公司 | The soil conditioner of a kind of ore and preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 任瑞晨、张开永: "《金属矿与非金属矿加工技术》", 31 March 2018, 徐州：中国矿业大学出版社 * |
| 徐静安: "《复混肥和功能性肥料生产新工艺及应用技术丛书 生产工艺技术》", 30 September 2000, 北京：化学工业出版社 * |
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Application publication date: 20210409 |