1. Spray mixed plant slope protection is a construction technology of plant slope protection, which uses a special jet machine to spray the evenly mixed planting base material onto the slope after the short anchor rod is constructed on the stable rock slope and the galvanized wire mesh is laid. The plants grow and develop by relying on the "base material". It can achieve the purpose of vegetation restoration, landscape improvement and environmental protection. It has the al functions of slope protection and vegetation restoration, and can replace the traditional masonry measures such as shotcrete anchor protection and rubble slope protection. The planting base material used in this technology is composed of planting soil, mixed grass and shrub seeds, organic matter, fertilizer, agglomerating agent, water retaining agent, stabilizer, pH release agent and water. The formula of the planting base material is the key to success. A good formula can achieve a certain strength to protect the slope and resist rain erosion on the rocky slope with a slope steeper than 1:0.75, It also has enough porosity and fertility to ensure plant growth< (1) selection and preparation of planting base materials
the materials of planting base materials mainly include planting soil, organic matter, fertilizer, water retaining agent, soil corrosion inhibitor, modifier, adhesive, mixed grass and shrub seeds, pelletizer, stabilizer, pH release agent and water, etc
1. Planting soil. The planting soil can be selected according to the local conditions, and the clay, loess or sandy soil can be collected nearby. However, the fertility of sandy soil, loess and clay is often insufficient. Generally, it can be used with other fertilized soil at the ratio of 1:1. The soil should be clean, free of impurities and weeds, kept dry, and screened to remove large coarse particles for spray sowing
2. Organic matter. The main use of organic matter is to increase soil fertility and ensure soil aeration, commonly used are northeast mud carbon, rotten leaf soil, compost, sawst, chaff, fully fermented livestock fertilizer, etc. Among them, the Northeast mud has the best carbon performance, with high water holding capacity, good ventilation, light weight, water holding capacity, air permeability and organic matter, which can store water, prevent soil hardening, improve soil physical structure and maintain long-term fertilizer efficiency
3. Fertilizer. Chemical fertilizer and organic fertilizer are mainly used. Slow release Russian compound fertilizer is mostly used in chemical fertilizer. Organic fertilizer mainly includes chicken manure and livestock manure, but they must be fully fermented to avoid excessive diseases ring plant growth and development
4. Water retaining agent. Water retaining agent is a kind of non-toxic and harmless functional polymer compound, which can absorb water and expand hundreds of times when meeting with water. The water is not easy to be discharged by general physical methods, but the plant roots can absorb the water stored in water retaining agent. Water retaining agent can quickly absorb the accidental rainfall and expand into gel to store water and release it slowly to the roots in drought. The average thickness of the planting base on the surface of the spray mixed planting rock is generally 10 cm, which is thinner than that of the general soil layer. Moreover, the rock is basically impermeable, and it is very difficult to store water. The germination and growth of the plant seeds on the rock are quite sensitive to the climate, and will wither and wither in a slight drought. At this time, the water retaining function of the water retaining agent is the key to the normal growth and development of the plants on the rock. According to the practical experience, the water retaining agent for greening on the rock surface can be selected as the larger particle proct of acrylamide acrylate copolymer cross-linking compound with low water absorption ratio, good water absorption repeatability and long service life
5. Adhesive. In order to avoid erosion and erosion caused by natural factors such as wind, rain and so on, a considerable amount of adhesive must be added to the planting base to promote the adhesion between the matrix and the rock and enhance the erosion resistance of the matrix itself. Chemical adhesives and ordinary portland cement are commonly used as binders. The alkalinity of cement is harmful to the rooting and germination of seeds. Therefore, the dosage of cement should be strictly controlled, and the maximum dosage should not exceed 80 kg / m3. For the acid-base and physical functions of the soil, a certain amount of soil amendment should be added according to the situation
in addition, auxiliary binders (such as red clay, superphosphate) and pH buffers are added to the spray mix base material. The pH value of the spray mix base material is reced from strong alkaline (pH 8.0-8.5) to neutral (pH 6.8-7.2) by using their acidity and buffering properties and the acidity proced by the hydrolysis of high amount of active aluminum of red clay, which is suitable for plant growth. The pH value of spray mixing base material will decrease with the growth of plants. Therefore, mature pH adjustment technology should be adopted to adjust the pH value of spray mixing base material to a suitable range for the growth of plants
in terms of operation, if it is a spray seeding machine of China coal, there will be professional technical guidance in the past.
2. Because kaolin is easy to disperse and suspend in water, the screening process of kaolin vibrating screen is wet screening. Firstly, kaolin ore is made into mud of micron size or less, and dispersant is added appropriately to dissociate minerals in water. In this way, kaolin and impurity minerals are divided into three different grades: fine, medium and coarse, Then, the pure kaolin ore is screened out through the screening grading function of the vibrating screen.
3. According to the standard difference:
geotextile pore diameter tester (dry screening method) according to the standard: JTG e50-2006 GB / T 14799-2005
the pore diameter tester of geotextile (wet sieving method) meets the standard of GB / t17634-1998< The technical parameters developed by standard group are as follows:
technical parameters of geotextile pore diameter tester (dry sieving method):
1
2. Stack height of sieve: 400mm
3. Radius of gyration: 12.5mm
4. Shaking times: 221 times / min
5. Vibration frequency: 147 times / min
6. Up and down amplitude stroke: 8 mm
7. Timing range: 0-60 minutes
8. Motor power: 0.37kw
9. Speed: 2800 rpm
technical parameters of geotextile pore diameter tester (wet screening method):
1. Inner diameter of gripper: 130mm
2. Vibration frequency: 50 Hz
3. Amplitude: 1.5mm
4. Nozzle pressure: 300kPa, water output: 0.5l/min
5. Time: 0-99.99s in two stages; 0~99min59s
4. What do you mean by wet screening and screening medium? If it is coal, ore and other solid substances, parabola type roller screen or hook tooth type trash remover proced by Shanghai Yuyuan Machinery Co., Ltd. can be used.
5. Kunming manganese steel screen mechanical equipment Co., Ltd. is a limited liability company (solely owned by natural person) registered in Kunming, Yunnan Province on September 7, 2017. Its registered address is located at No. 335, 3rd floor, building 2, Yunnan returnees Pioneer Park, No. 80, chunman Avenue, information instry base, Kunming Economic Development Zone, Yunnan Province
the unified social credit code / registration number of Kunming manganese steel ore screen machinery and Equipment Co., Ltd. is 91530100ma6l0p451p, and the enterprise legal person is fan Shuangshuang
Kunming manganese steel screen machinery and Equipment Co., Ltd., within the province, the current registered capital of the enterprise is general
check more information and information of Kunming manganese steel ore screen mechanical equipment Co., Ltd. through network enterprise credit
6. There are many ways. I hope you can tell me in detail what tools you have. Do you want soil or stone?
7. If the material of the screen bar is considered, whether the hardness of the screen bar will be higher after changing the material or heat treatment, and whether changing the shape of the lower screen bar can also improve the screening capacity, I suggest ha ha.
8. Things 8 la la la
9. Family flowers commonly used 8 types of soil 1, humus: also known as stable soil. It is made from the mixture of livestock manure and urine, bedding material and feed resie by fermentation and retting, containing a variety of organic matter and nitrogen, phosphorus, potassium, etc. Its composition is mainly composed of humus, loose texture, acidic, rich in nutrients, strong fertilizer and water retention, but poor drainage. 2. Sapropelic soil: it is the surface soil of forest zone in nature. It is formed by the accumulation and decay of fallen leaves for many years. Rotten leaf soil is loose, porous, acidic or slightly acidic, and rich in nutrients. It is suitable for planting all kinds of flowers in acid soil, and is also one of the main materials for potted flower culture soil. 3. Peat soil: peat soil is collected from peat swamp. It is formed by the accumulation of organic matter or under flooding conditions, some of which have been carbonized, dark brown, acidic, rich in organic matter, some as high as 80% - 90%, can improve the physical properties of the soil. Peat soil itself has not much nutrients for plants to absorb and utilize, but it contains a lot of fiber and humic acid, and has strong ability of absorbing fertilizer and water, so it is a good material for preparing flower culture soil. 4. Turf soil: it is formed by the accumulation and decay of weeds, straw, etc. mixed with livestock manure. It contains more humus, more minerals and is weakly acidic. 5. Coniferous soil: it is formed by the accumulation of humus from the decious branches of conifers and bryophytes of Pinaceae and Cupressaceae. The coniferous soil formed by the fallen leaves of Picea and Abies is acidic (pH 3.5-4.0) and rich in humus, so it is suitable for acid loving soil. 6. Shanni: commonly known as orchid soil, is a natural humus proced in Jiangsu and Zhejiang mountainous areas, which is formed by decaying fallen leaves accumulated for many years. Its color is black brown, loose, light, not only breathable, drainage, but also keep fertilizer and water, it is a good potting soil. This kind of soil is acidic and suitable for planting flowers in acid loving soil. 7. Plain sandy soil: a kind of fine sandy soil with pure texture, good ventilation and water permeability, but no fertility, no aggregate structure and poor water retention. It is often used for sowing or cutting of common flowers, and is also one of the raw materials for preparing culture soil. 8. Guangdong pond mud: it is a fertile pond mud lump in South China. It is the surface soil deposited at the bottom of the pond for many years. It is rich in organic matter, abundant in nutrients, slightly acidic and hard in texture. In addition, Lake soil, river mud, garden soil, field soil, dregs soil, horse manure soil and so on are commonly used in family flower cultivation. There are three ways to prepare the culture soil. Generally, the culture soil for potted flowers should be loose, well drained and air permeable to meet the needs of root respiration; Second, it should have sufficient nutrients, rich in humus, good fertilizer and water retention to meet the needs of flower growth and flowering; Third, suitable pH for flower growth; 4. It shall not contain harmful microorganisms and other harmful substances such as insect eggs and living bodies. It is difficult to find the soil that can fully meet the above requirements in nature. In order to cultivate flowers well, it is necessary to artificially prepare the culture soil according to the ecological habits and the requirements of each stage of growth and development of flowers. The common preparation methods of culture soil are as follows: 1. Rotten leaf culture soil: in autumn, 5 parts of broad-leaved leaves and herbaceous stems and leaves, 3 parts of sawst and 2 parts of horse ng are used, which are stacked in layers, and then splashed with human manure and urine water, and covered with 10 cm thick garden soil to make it ferment and rot. In the spring of the next year, the rotten leaves were smashed, and then according to the volume ratio, the rotten leaves were used to pile up 4 parts of fertilizer soil, 4 parts of plain sand soil, 2 parts of furnace ash soil, mixed evenly, and then piled for a period of time, pay attention to keep moist, and overturned 2-3 times, so that the fertilizer and soil can be fully mixed, and then it can be used. 2. Peat culture soil: 4 parts of peat soil, 4 parts of plain sand soil, 2 parts of horse ng or rotten leaf pile fertilizer soil, mixed and accumulated, kept moist, often overturned. When there is no horse ng, it can be used to pour thin human ng. After full fermentation, it can be used. 3. Natural humus culture soil: according to the humus content and dispersion degree in forest humus soil, it is mixed with garden soil or river mud and thin human feces and urine, piled for a period of time, and can be used after full fermentation and maturity. As for the stacking time of various cultivation soils, for general flowers, they can be used in the same year. When they are used as soil for cultivating delicate flowers or cutting, they need to be used every other year. Before using the culture soil, it is necessary to use a sieve to screen the soil into a granular state while it is wet, and to add an appropriate amount of insecticidal and sterilized pesticides for disinfection and sterilization.
10. How much is a mobile mine earth rock separator? Presumably, this is a problem that most users are very concerned about. Due to its advanced and comprehensive performance, the starting price of this device is about 300000, which is not cheap,