1、 Determination of mixer grade

投资方应充分了解国内外施工厂家的同行业产品质量水平，服务能力和价格信息，市场调研，现场考察厂家加工，质量保证能力。可通过召开答辩会，招标会等方式，选择所需成套设备的生产厂家，选择质优价廉的产品。根据资金归属，确定商品混凝土搅拌机的规模和等级。

The investor shall fully understand the product quality level, service capacity and price information of domestic and foreign construction manufacturers in the same industry, market research, on-site inspection, manufacturer processing and quality assurance ability. Manufacturers of complete sets of equipment and products with high quality and low price can be selected by holding defense meeting, bidding meeting, etc. Determine the scale and grade of commercial concrete mixer according to the capital ownership.

二、搅拌车场地的选择

2、 Selection of mixer site

选择搅拌场地时，应确保场地离石料场和砂厂较近，以保证有足够的水分，并远离住宅区。如果我们能充分利用山坡地形，将物料场设置在山坡、较高的地面上，可以降低配料机的配料高度，使装载机进料、爬坡角度小或不需要爬坡，既节省能源又减少磨损。设备基地的安装应注意避开地上、地下光缆、电源或通信电缆。

When selecting the mixing site, it shall be ensured that the site is close to the quarry and sand factory to ensure sufficient moisture and away from the residential area. If we can make full use of the hillside terrain and set the material yard on the hillside and high ground, we can reduce the batching height of the batching machine and make the loader feed and climbing angle small or no need to climb, which can save energy and reduce wear. The installation of equipment base shall avoid aboveground and underground optical cables, power supply or communication cables.

三，骨料供应方式的选择建议采用装载机供料。

3、 For the selection of aggregate supply mode, it is recommended to use loader for feeding.

搅拌车的选用如用于高速公路工程施工(工期短、移动进行搬迁问题频繁)，则要通过选用快装式、模块式结构的搅拌车。

If the mixer is used for expressway construction (short construction period and frequent relocation problems), the mixer with fast loading and modular structure shall be selected.

四，传送带机选

4、 Conveyor belt selection

如场地宽阔，应优先发展选用小倾角18°，平皮带机输送生活方式(为降低企业设备公司采购管理成本，也可以通过选用有效提升料斗方式)。如果没有场地面积不断受到一定限制，可以充分考虑大倾角(一般为40°～50°)挡边皮带机(采用一些附加皮带结构，可以同时达到90°)。但在砂石潮湿的环境下，大倾角挡边皮带机有粘砂的缺点，皮带返程时，皮带下面落砂现象分析比较

If the site is wide, priority should be given to the development and selection of a small inclination angle of 18 °, flat belt conveyor conveying lifestyle (in order to reduce the procurement management cost of enterprise equipment companies, the effective lifting hopper can also be selected). If the site area is not continuously limited to a certain extent, the edge retaining belt machine with large inclination angle (generally 40 ° ~ 50 °) can be fully considered (some additional belt structures can reach 90 ° at the same time). However, in the wet environment of sand and gravel, the large angle edge retaining belt machine has the disadvantage of sticking sand. When the belt returns, the phenomenon of sand falling under the belt is analyzed and compared