Manual characteristics of arms outside the Dakota is in the large-scale distance away, more than any rotary joint 340ºmobile within a short degrees and anti-brake drift aerodynamic configuration can be based on your needs and easily moved to any district Operating Table, user-friendly, easy to operate. The double arms manual medical pendants is ideal for large and medium-sized operation room. Medical gas, power supply, networks and treatment apparatus output terminal carrying the mobile work platform system.
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First, the way of transformation
1. Cement brick (hollow brick) brickwork. It requires convenient traffic and the bottom of the pond is hard. Advantages: beautiful. Disadvantages: High cost, unstable cement bricks.
2, cement mortar painting. Advantages: Relatively low cost.
Second, technical measures
1, generally should be transformed in the winter. Drain the dry pond and dig up most of the silt. The bottom of the pool is turtle shaped and slopes toward the drain side.
2, cut slope. Remove the weeds from the pond, cut out a certain slope, and repair it. If cement bricks are used, the slope is greater than 70 degrees and less than or equal to 90 degrees; with cement mortar, the slope should be greater than 45 degrees and less than 90 degrees.
3. Bricks are laid with cement bricks, and the bottom layer is laid horizontally, and the hollow part is filled with cement mortar. After solidification, the bricks are piled up, then backfilled and compacted.
4, cement mortar paint, first digging at the bottom of a ditch Cao (length and width depending on the specific circumstances), cement mortar, after solidification, from the bottom to the top layer of 4-6 cm thick cement mortar (cement 1 sand 3 ), and extend horizontally at the top 15-20 cm, slightly thicker. At a certain distance, a wooden stick is used to press a block of Cao, followed by a row.
5, maintenance. Water regularly and freeze in winter.
6, if you feed, you can pour a food table in the bottom of the pool to reduce the damage of fish to the bottom of the pool.
Third, the effect of analysis
1. Due to the quality of cement briquetting, the weathering of the cement bricks has led to a shortened period of use and a high cost, which is generally unacceptable to fish farmers.
2, the cost of painting with cement mortar is relatively low, the use period is generally 5-8 years. Practice shows that the effect is good.
Pond renovation technology
Fisheries are one of the major industries in our county. The breeding areas are mainly concentrated in the Bibihu Town, Yousuo Town and Dengchuan Town in the dam area. Due to long-term breeding, the ponds are seriously aged, which is characterized by pool collapse, leakage, and deep sludge at the bottom of the pool, which reduces the effective area, prevents water from being released, and prevents stable production and high production. After continuous practice and summarization by the vast numbers of farmers, combined with the implementation of the fish breeding and snail-repelling projects in our county, the mature pond renovation technology is now described as follows: