1, concrete mixing plant construction site should have flood control, drainage systems and measures, the road should be kept unblocked。2, the foundation pit, the trough should have a system of drainage ditches, and should often check the stability of the soil wall of the mixing station to avoid the collapse of the soil。3. After brushing the template with spacer, it should be covered to prevent it from being washed by rain;If it is found that the spacer is washed by rain, it should be repainted and the concrete should be poured。4, cement shed and mixer shed should be checked frequently to prevent rain leakage。5, the water content of sand and stone should be often determined, and should be deducted from the water added in the mix ratio。6, mixing station rainy day transportation of raw materials and concrete, should be covered。7. Before pouring concrete, the water in the mold should be drained。8. If the open-air structure and components of the mixing station require continuous construction without construction joints, the awning should generally be set up。Otherwise, adequate cover and waterproof materials (such as tarpaulins, linoleum, etc.) should be prepared to cover in time to prevent rain erosion。优质Concrete spreader图片If the surface of the component is washed by rain, it should be smoothed again。9. Slope and bridleway should take anti-skid measures。10, mixing station electric machinery and wires, should be often checked by electricians whether leakage;优质Concrete spreader图片When leakage is found, the work should be stopped immediately for repair。

Concrete double horizontal shaft forced mixer is mainly used for mixing various powdered materials。Can produce a variety of powder mixing materials。Its aggregate can be wet fly ash, calcium carbide mud, phosphogypsum, sand, slag and so on。优质Concrete spreader图片It is mainly used as a supporting host for all kinds of standard brick, gray sand brick and other production lines。It is one of the important equipment in the production process of autoclaved fly ash brick and lime sand brick。Concrete double horizontal shaft forced mixer is mainly composed of shell, spiral shaft assembly, drive device, piping, cover plate, chain cover and other components (see the random external drawing) 1 优质Concrete spreader图片The shell is mainly composed of plate and section steel, welded and formed in the factory, and assembled with other components, which is the support of the two-shaft mixer。The shell is tightly sealed, and there will be no phenomenon of flying ash and leaking ash。2 Screw shaft assembly is the main component of double-shaft mixer, its components are mainly left and right spiral shaft, bearing seat, bearing sleeve, bearing cover, gear, sprocket, oil cup, blade and other parts。

Concrete mixing station is mainly composed of material storage system,Concrete spreader图片Material weighing system, material conveying system, mixing system, powder storage system, powder conveying system, powder metering system, water and admixture metering system and control system and other ancillary facilities。Mixing machine Mixing machine according to its mixing mode is divided into forced mixing and self-falling mixing。Forced mixer is the mainstream used in mixing stations at home and abroad.优质Concrete spreaderIt can mix a variety of concrete such as fluid, semi-dry hard and dry hard。The self-falling mixing machine mainly mixes liquid concrete, which is rarely used in mixing stations。The forced mixer is divided into spindle planetary mixer, single horizontal shaft mixer and double horizontal shaft mixer according to the structural form。Among them, the double horizontal shaft forced mixer has good comprehensive performance。Weighing system Material weighing system is a key component that affects the quality of concrete and the cost of concrete production, which is mainly divided into three parts: aggregate weighing, powder weighing and liquid weighing。Under normal circumstances, the mixing station below 20 cubic meters per hour adopts the superposition weighing method, that is, the aggregate (sand, stone) is weighed with a scale, the cement and fly ash are weighed with a scale, the water and the liquid admixture are respectively weighed, and then the liquid admixture is put into the water weighing bucket before mixing。In the mixing station of more than 50 cubic meters per hour, the method of independent weighing of each material is used, and all weighing is controlled by electronic scales and computers。The weighing accuracy of aggregate is ±2%, the weighing accuracy of cement, powder, water and admixture is ±1%。

Concrete mixing station is divided into four parts: sand and stone feeding, powder (cement, fly ash, expansion agent, etc.) feeding, water and admixture feeding, transmission mixing and storage。After the mixer control system is powered on, the operation interface of human-machine dialogue is entered, and the system is initialized, including the formula number, concrete grade, slump, production square amount, etc.According to the weight of each bin, measuring hopper detection, output empty or full signal, prompting the operator to determine whether to start the mixing control program。Start the sand and stone belt motor to feed into the metering bucket;Open the butterfly valve of fly ash and cement tank, and start the screw machine to transport fly ash and cement to the metering bucket;Open the control valve of the water tank and admixture tank to allow water and admixture to flow into the metering bucket。优质Concrete spreader图片After the metering meets the set requirements, the metering bucket door is opened, the ingredients are mixed into the mixer that has been started, and the mixer door is opened at the set time, and the concrete enters the mixing car that has been received。1.Each cylinder, control valve and motor operate according to the requirements of the concrete mixing process, and the control of each cylinder, control valve and motor must be accurate, stable and reliable。2.The control system has two working modes, automatic and manual, and the relationship between each other is independent and restricted。3.Concrete spreader图片The system has good anti-interference ability and perfect alarm self-protection function。4.By communicating with the computer, the system working state and fault alarm can be displayed。

The theoretical productivity of HZS75 concrete mixing plant is 75 cubic meters per hour，Equipped with JS1500 double horizontal shaft forced mixer，HZS75 concrete mixing station is a fully automatic concrete mixing set equipment composed of batching, mixing and electrical control system,At the same time, it is equipped with separate manual control, automatic compensation of drop, and compensation of sand and stone moisture content，Can automatically complete the predetermined tank production。With the scientific design of the hopper and track, the aggregate can be conveniently and efficiently held and dumped, and the unloading height is 3.8 meters, with a small amount of investment capital, occupy a small site, less use of equipment, equipment maintenance is easy, easy to operate and other advantages。HZS75 series concrete mixing plant is composed of batching, mixing, electrical control system and other parts of the automatic concrete mixing set equipment, while equipped with a separate manual control, automatic compensation of drop, sand and stone moisture content compensation, can automatically complete the predetermined tank production.The theoretical productivity is 75 cubic meters per hour and the unloading height is 3.8 meters, the storage hopper volume is 8 cubic *3 bins or 4 bins, the supporting host is JS1500 forced double horizontal shaft mixer。The investment capital of HZS75 mixing plant is small, the space is small, the equipment is less, the equipment is easy to maintain, and the equipment can be equipped with the performance control room, so that the equipment is convenient and safe to operate, and the batching machine can also produce high-quality concrete under the condition of accurate measurement。Performance advantages: 1, the use of combined structure, the whole machine installation, relocation is convenient, low equipment cost。2、优质Concrete spreader图片JS series double horizontal shaft forced concrete mixer is used in the host, which has good mixing quality, high efficiency, long life of wearing parts and easy operation and maintenance。3、Concrete spreader图片It adopts new design ideas of electronic weighing, microcomputer control, digital display and other control technology, electronic weighing with buffer device and automatic compensation function, high measuring precision。4, the sand and gravel feeding system adopts large width herringbone belt feeding, with pedestrian walkway, is the ideal choice for the majority of construction units to produce high-quality concrete。