阅读说明：本技术 一种硅钙钾镁肥的生产工艺 (Production process of silicon-calcium-potassium-magnesium fertilizer ) 是由 秦胜君 于 2020-06-18 设计创作，主要内容包括：本发明公开了一种硅钙钾镁肥的生产工艺,用于农业生产,提高土壤承载力,原料从大自燃界来,通过环保型生产,矿石得到净化和活化后回到土壤中去,改善土壤生态环境,为农业种植有机健康农产品提供保障。采用化工生产工艺的高炉或电炉连续生产,矿物质元素在高温熔融中反应,分子发生交换重组活化,矿物中的金属氧化物被一氧化碳气体还原成金属,聚凝在一起被分离出多余的重金属,沉入浴池累集到一定数量后定时排放一次,起到分离出矿石中的重金属难题。解决了不溶性钾矿钾难以利用的技术难题,两次活化后的矿物质元素是作物的营养元素。全套设备国产化,工艺简单,技术成熟,易撑握,投资少,产量大,产品质量稳定。(The invention discloses a production process of a silicon-calcium-potassium-magnesium fertilizer, which is used for agricultural production to improve the bearing capacity of soil. The continuous production of blast furnace or electric furnace by chemical production process, the mineral elements react in high-temperature melting, the molecules are exchanged, recombined and activated, the metal oxides in the minerals are reduced into metal by carbon monoxide gas, the metal oxides are condensed together to separate redundant heavy metal, the heavy metal is deposited in a bath pool and accumulated to a certain amount and then is discharged once at fixed time, and the difficult problem of separating heavy metal in the minerals is solved. The technical problem that insoluble potassium ore potassium is difficult to utilize is solved, and the mineral elements after two times of activation are nutrient elements of crops. The whole set of equipment is made in a domestic manner, the process is simple, the technology is mature, the supporting and holding are easy, the investment is low, the yield is high, and the product quality is stable.)

1. A production process of a silicon-calcium-potassium-magnesium fertilizer is characterized by comprising the following steps: the method comprises the following steps:

step 1): the method is characterized in that insoluble potassium ore (nepheline syenite) is used as a main raw material, serpentine, dolomite and limestone are used as auxiliary raw materials, coke is used as fuel, the coke is crushed into standard ores with the grain sizes of 3Cm-8Cm and 4Cm-14Cm respectively, and the standard ores are stored in each storage bin for later use;

step 2): the materials are measured by an electronic scale feeder, are sent to a hopper through a belt conveyor and are put into a blast furnace;

step 3): the method comprises the steps of continuously producing the mineral substances by adopting a blast furnace or an electric furnace of a chemical production process, reacting all mineral elements in high-temperature melting, carrying out exchange recombination and activation on molecules, reducing metal oxides in the minerals into metal by carbon monoxide gas, condensing the metal oxides together, separating redundant heavy metals, settling in a bath pool, accumulating to a certain amount, and then discharging the heavy metals at regular time;

Step 4): the synthesized fertilizer flows out from a discharge port and is quenched into sponge body particles and cotton shape by high-pressure water, the semi-finished products after two times of activation flow into a sedimentation tank along with water flow for sedimentation, the semi-finished products are fished out by a grab bucket and stacked, the semi-finished products produced in each shift are sampled and tested, and the production is guided according to test reports;

step 5): naturally filtering the semi-finished product to remove water, drying in a dryer, grinding into powder of 100 meshes by a ball mill, removing a small amount of metal residues by magnetic separation, metering, packaging and warehousing.

Technical Field

The invention relates to the field of production of silicon-calcium-potassium-magnesium fertilizers, in particular to a production process of a silicon-calcium-potassium-magnesium fertilizer.

Background

China is a big agricultural country, is lack of water-soluble potassium ore resources, but insoluble potassium ore resources are rich, the potassium content of insoluble potassium ore is about 6% -18%, the general potassium content is low, potassium is required to be utilized, the processing is complex and the difficulty is very high, 1994, the inventor starts to research and utilize potassium feldspar and dolomite as raw materials, anthracite is used as fuel, firstly, the potassium feldspar, the dolomite and the anthracite are respectively ground into stone powder and coal powder with the granularity of more than 80 meshes, then, according to the potassium content of the potassium ore, dolomite powder is matched, internal combustion coal powder is added according to the combustion value of coal, water is added, the mixture is stirred and mixed uniformly and then is pressed into blocks, the blocks are naturally dried and then enter a brick kiln, the firing temperature is 700 ℃ -900 ℃, the firing temperature is controlled for more than 24 hours, the blocks are naturally cooled and then discharged from the kiln, and are crushed.

The existing production processes in domestic market include two-grinding one-burning method, powder-grinding briquetting high-pressure steaming method, direct ore-grinding blending method, powder-grinding blending method using yellow phosphorus slag, steel slag, fly ash, potassium sulfate, potassium chloride and the like. The high-quality insoluble potassium ore and limestone or lime powder are used as raw materials, the raw materials are ground and pressed into blocks after being proportioned and proportioned, and products produced by a rotary kiln or a brick kiln and a high-pressure steam kettle only have the functions of oxidizing potassium, calcium, magnesium and other elements, not recombining mineral elements and separating redundant heavy metals, have high requirements on the quality of the potassium ore and other raw materials, are limited in the types of blending ores, unreasonable in the content of mineral elements in the produced products, low in activity and defects, low in the absorption and utilization rate of crops, single in effect and unobvious in yield increase and quality improvement.

Disclosure of Invention

The invention aims to provide a process for producing a silicon-calcium-potassium-magnesium fertilizer, which belongs to the field of soil mother rocks which take insoluble potassium ore (nepheline syenite) as a main part and serpentine, dolomite and limestone as auxiliary parts and is used for producing silicon-calcium-potassium-magnesium medium trace element fertilizer as a raw material, and the silicon-calcium-potassium-magnesium medium trace element fertilizer is used for providing nutrients for crops in agricultural production, supplementing mineral elements taken away by agricultural products in soil, ensuring that enough elements in the soil are provided for the growth of the crops and realizing the sustainable cultivation of the soil.

The technical scheme provided by the invention is as follows: a production process of a silicon-calcium-potassium-magnesium fertilizer comprises the following steps: step 1): the method is characterized in that insoluble potassium ore (nepheline syenite) is used as a main raw material, serpentine, dolomite and limestone are used as auxiliary raw materials, coke is used as fuel, the coke is crushed into standard ores with the grain sizes of 3Cm-8Cm and 4Cm-14Cm respectively, and the standard ores are stored in each storage bin for later use; step 2): the materials are measured by an electronic scale feeder, are sent to a hopper through a belt conveyor and are put into a blast furnace; step 3): the method comprises the steps of continuously producing the mineral substances by adopting a blast furnace or an electric furnace of a chemical production process, reacting all mineral elements in high-temperature melting, carrying out exchange recombination and activation on molecules, reducing metal oxides in the minerals into metal by carbon monoxide gas, condensing the metal oxides together, separating redundant heavy metals, settling in a bath pool, accumulating to a certain amount, and then discharging the heavy metals at regular time; step 4): the synthesized fertilizer flows out from a discharge port and is quenched into sponge body particles and cotton shape by high-pressure water, the semi-finished products after two times of activation flow into a sedimentation tank along with water flow for sedimentation, the semi-finished products are fished out by a grab bucket and stacked, the semi-finished products produced in each shift are sampled and tested, and the production is guided according to test reports; step 5): naturally filtering the semi-finished product to remove water, drying in a dryer, grinding into powder of 100 meshes by a ball mill, removing a small amount of metal residues by magnetic separation, metering, packaging and warehousing.

The invention has the beneficial effects that: the invention has the advantages of reasonable and simple structure, low production cost, convenient installation and complete functions, belongs to the soil mother rock which takes insoluble potassium ore (nepheline syenite) as the main part and takes serpentine, dolomite and limestone as the auxiliary part, and is used for producing the trace element fertilizer in silicon-calcium-potassium-magnesium for the raw materials, providing nutrient for crops in agricultural production, supplementing mineral elements taken away by agricultural products in soil, ensuring that enough elements in the soil are provided for the growth of the crops, and realizing the sustainable cultivation of the soil.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic flow chart of the present invention.

Detailed Description

As shown in fig. 1, the following technical solutions are adopted in the present embodiment: a production process of a silicon-calcium-potassium-magnesium fertilizer comprises the following steps: step 1): the method is characterized in that insoluble potassium ore (nepheline syenite) is used as a main raw material, serpentine, dolomite and limestone are used as auxiliary raw materials, coke is used as fuel, the coke is crushed into standard ores with the grain sizes of 3Cm-8Cm and 4Cm-14Cm respectively, and the standard ores are stored in each storage bin for later use; step 2): the materials are measured by an electronic scale feeder, are sent to a hopper through a belt conveyor and are put into a blast furnace; step 3): the method comprises the steps of continuously producing the mineral substances by adopting a blast furnace or an electric furnace of a chemical production process, reacting all mineral elements in high-temperature melting, carrying out exchange recombination and activation on molecules, reducing metal oxides in the minerals into metal by carbon monoxide gas, condensing the metal oxides together, separating redundant heavy metals, settling in a bath pool, accumulating to a certain amount, and then discharging the heavy metals at regular time; step 4): the synthesized fertilizer flows out from a discharge port and is quenched into sponge body particles and cotton shape by high-pressure water, the semi-finished products after two times of activation flow into a sedimentation tank along with water flow for sedimentation, the semi-finished products are fished out by a grab bucket and stacked, the semi-finished products produced in each shift are sampled and tested, and the production is guided according to test reports; step 5): naturally filtering the semi-finished product to remove water, drying in a dryer, grinding into powder of 100 meshes by a ball mill, removing a small amount of metal residues by magnetic separation, metering, packaging and warehousing.

The using state of the invention is as follows: according to the experience accumulated by years of research and development and trial, the fertilizer requirement rule of healthy growth of crops is mastered, the requirements of different contents and activities of soil mineral elements are different, various mineral elements have specific functional actions and can not be replaced mutually, therefore, insoluble potassium ore (nepheline syenite) is selected as a main raw material (containing K2O 8% -9%), serpentine, dolomite and limestone are selected as auxiliary raw materials, coke is selected as fuel, the insoluble potassium ore (nepheline syenite) is respectively crushed into standard ores with the grain sizes of 3Cm-8Cm and 4Cm-14Cm, the standard ores are respectively stored in each storage bin for standby use, are metered by an electronic weighing feeder, are conveyed to a feeding hopper through a belt conveyor and are lifted by the feeding hopper to a blast furnace, the blast furnace or an electric furnace of a chemical production process is adopted for continuous production, all the mineral elements react in high-temperature melting, and exchange recombination and activation are carried out on molecules, the new material molecular structure is generated, metal oxides in minerals are reduced into metal by carbon monoxide gas, the metal oxides are condensed together and separated out redundant heavy metal, the heavy metal is deposited into a bath pool and accumulated to a certain amount and then is discharged at regular time, the synthesized fertilizer flows out from a discharge port and is quenched into sponge body particles and cotton shape by high-pressure water, the semi-finished product after twice activation flows into a sedimentation pool along with water flow to be deposited, the sponge body particles are fished out by a grab bucket to be stacked, the water is naturally filtered out, the semi-finished product is sent into a dryer to be dried, the semi-finished product is ground into 100-mesh powder by a ball mill, a small amount of metal residue is removed by magnetic separation, and the semi-finished product.

According to the production guide of the Q/HSG03-2015 product enterprise standard, the national standard GB/T23349-2009 is executed for the limit of harmful elements of lead, arsenic, mercury, cadmium and chromium, the mineral element content of various ores is firstly tested, the required amount and proportion of each ore are calculated, and the coke charging ratio accounts for 20% -25%.

The production process flow comprises the following supporting facilities of material preparation by crushing and screening, metering and conveying, air preheating, water storage in a water storage tank for later use, a high-pressure fan, a high-pressure water pump, electric power matching, a non-standard hot blast stove, a blast furnace, a cyclone dust collector, a cloth bag dust collector, a Venturi washing tower, a cooling water tank, a sedimentation water tank, a boat vehicle grab bucket, belt conveying, a roller dryer, a ball mill, a heat-resistant strong magnetic separator, a packaging machine, a laboratory and the like. When the material is fed and ignited for production, the smoke dust generated by the blast furnace is dedusted and recycled by the cyclone dust collector, the gas is washed by the Venturi washing tower, carbon monoxide is sent to the dryer and the hot blast stove through the pipeline to heat the carbon dioxide after cold air, the carbon dioxide is washed by a two-alkali method to remove nitrogen and sulfur, and then the carbon dioxide passes through the high-altitude chimney, and is subjected to online detection and standard emission. The cold air is heated to above 600 ℃ in the hot blast stove, and is blown into the blast stove for combustion supporting through a high pressure fan, the temperature in the blast stove is maintained at 1500-1700 ℃, the normal production is ensured, the carbon monoxide is conveyed to the dryer through a pipeline, and the semi-finished silicon-calcium-potassium-magnesium fertilizer is burned and dried in the dryer, the whole production process flow is continuous for 24 hours, no solid waste is discharged, and the water is recycled. The whole set of equipment is made by domestic and self-designed non-standard manufacture, and has the advantages of simple process, mature technology, easy holding, low investment, high yield, quick response and stable product quality.

Quality standard of Si-Ca-K-Mg fertilizer

Kunming eosin New technology application, Limited liability company was created in 1999. 10 ten thousand tons of batch products produced by the Guizhou province in the year of committee of Guizhou province are obtained in 2000, the products are produced by utilizing a two-grinding and one-burning production process, the varieties and areas of crops are expanded, repeated tests are carried out, the defects are found out, the formula and the production process are improved, then mineral resources are searched, the production of the silicon-calcium-potassium-magnesium fertilizer by a high-temperature melting method is realized in 2015 by a general phosphate fertilizer factory in the old city of Yunnan province, one-time feeding continuous production is successful, all indexes of the product are stable, the enterprise standard of the Q/HSG03-2015 product is confirmed in 2015, and the method is put into record by. In 2015, the fertilizer is added into the central soil testing and formulated fertilization test in Yunnan province, and the fertilizer has 130 points and 10 provinces and foreign points. The second feeding of the compound fertilizer is industrially and continuously produced in the Kunyang phosphate fertilizer plant in 2016, the third feeding of the compound fertilizer is industrially and continuously produced in the Kunyang phosphate fertilizer plant in 2017, the fourth feeding of the compound fertilizer is industrially produced in the Yang phosphate fertilizer plant in 2018, a 20-kiloton silico-calcium-potassium-magnesium fertilizer production line produced in the first year in the second-street industrial park in Jinninging is built in 2018, the product can be used in more than 20 provinces in China, remarkable achievement is achieved, the production scale needs to be expanded in future, and market demands are met.

While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.