construction elevator quality grading assessment system

Comprehensive comparison of Guangdong Province shows that demonstration projects roadbed , bridge , tunnel project qualified rate , respectively, compared with 10.6% before the event to improve , YUJIE twin-shaft concrete mixer  Sichuan, Yunnan real-name registration system to implement key projects , Jiujiang Yangtze River Bridge implement concrete appearance quality grading assessment system , broken down by management and systems complete, we achieved a fine requirements, but also to ensure the quality of the project . Liaoning Provincial Department of Transportation deputy director Liu chu said YUJIE concrete block making machine : "' Five of ' activity concept has gained , has been transformed into real productivity ." Promotes the standardization process management efficiency, effectively alleviate the arduous task of building relatively scarce and management conflicts .

concrete batching plant sprawling central

 Slope on both sides of the road , has been green seedlings , flowers wrapped tightly , almost no construction signs , sprawling central highway with median strip , all kinds of green seedlings also neatly lined up , and from the few vehicles and pedestrians compliments . YUJIE concrete block making machine the way , enjoy the magnificent scenery of rain Xiaoxiang feel wonderful extension of the highway , could not help but form a false impression that the road has been in this Shonan landscape in repose for many years, this way , this scene, blending dependent, inseparable.
When the screen appears depicting the YUJIE concrete mixer with hopper , the reporter was well aware that this road was not yet open to traffic . Under the leadership of accompanying staff , the reporter walked into balance Gui -speed , perception of those roads, road person's story .

Stabilized Soil Base

Refers to the use of lime , cement, fly ash and other materials in conjunction with soil, gravel or other aggregate, Concrete mixing plant, paving, compaction from the road base .
Lime stabilized soil will be mixed with lime powder or lime powder crushed or original people of various loose soil, after mixing , compaction and curing the resulting mixture, known as lime stabilized soil . It includes limestone soil, gravel and lime stabilized soil, concrete block making machine  Lime stabilized soil with a certain strength and water resistance . Widely used as a basis for building and road pavement ground cushion grassroots .

related equipment managers should carefully

Operators and related equipment managers should carefully read the instruction manual and grasp the structural principle, use and maintenance, and pumping concrete knowledge; use and operation of Concrete mixer should be strictly in accordance with the instruction manual execution. Because the operator can fully grasp the need to have a mechanical process, so instructions should be randomly set aside. At the same time, should be based on the development of specialized manual operation points, to be able to effectively control the pumping technology of some variables, such as the location of pumps, piping, etc.
Supporting concrete pumps ground should be flat, solid; whole need horizontally, the working process should not tilt. Should be able concrete block making machine legs machine and securely locked or fixed. Position both easy to pump concrete mixer truck and out of the hopper and feed, but also consider conducive pumping pumping pressure piping and to reduce losses, while requiring from pouring Location Near, electricity, water and convenient.

sale of concrete settlement payments lag

The overall trend is also true. In March this year , Changsha industrial producer prices (PPI) fell 1.2 percent, cement, lime and gypsum manufacturing prices fell 8.3%. April , Hunan PPI fell 2 percent , a decline of 0.5%. Among them, the industrial producer price , the construction materials and non-metal prices fell 2.3%.
Zhuo record information analysts think is a bad signal downstream Wheel Loader the current economic downturn , exacerbated by excess capacity , the downstream demand is low, corporate profits difficult situation.
Use more concrete on credit sales model , that is, first sale of concrete , payment settlement lag , but they need to pay before the purchase of cement , raw materials purchasing and product concrete block making machine in different ways, for commercial concrete company's financial operation has brought challenges. It is reported that 600,000 -80 million cubic meters of ready-mixed concrete business , trade credit can be a billion dollars , "by the industry, environmental constraints , there is no effective short-term solution ."

Maintenance mixing station

When the site inaccessible, maintenance personnel need to spend a lot of time and out of the site, the best choice with the same smaller size of the two aircraft stations, or prepare enough spare parts to ensure the smooth construction progress.
Screw Conveyor construction to a more decentralized, but not too far distance between the site, concrete mixer truck transporting a radius of not more than half an hour, dump trucks transporting no more than 10 minutes. Best use of multi No. concentrated agitation to improve the utilization of mixing station and construction cost.
Operating personnel quality; Generally, concrete block making machine structure is relatively simple, the control system is also relatively simple, so the operation and maintenance personnel requirements are lower. While the larger station complex structure, high degree of automation, so the operator's requirements are also higher. So when you buy in addition to considering mixing station in front of several factors, should consider this factor.

concrete mixing station management

1, mixing station staff must be trained in pre-service, can be trained to master the mixer performance, serious and responsible work; 2, mixing station staff are technically under the guidance of the laboratory work, shall be required in accordance with the laboratory to do, and to actively cooperate with the laboratory work, a good grasp of raw materials entering the hurdle: the approach of all the sand, stone frequency self-test chamber in addition, each mixing station Screw Conveyor each car rewinding gravel material in the visual approach is abnormal, the laboratory must be notified to come and after laboratory confirmation consent before unloading, to eliminate substandard aggregate approach; 3, concrete mixing former staff first check whether Yuncheng normal blender to confirm normal operation can be carried out after the concrete mixing; 4, concrete mixing and staff must be strictly in accordance with the laboratory provides concrete construction for mixing ingredients alone, not free to change, if found, the first time for persuasion and education, and the second for a fine deal, the third clear mixing station; 5, with the ratio adjustment, concrete mixing process due to material concrete block making machine.  Mix needs to be adjusted, the staff should be timely notified laboratory, laboratory personnel according to the actual situation with the ratio adjustments. Mixing station staff mix has no right to be adjusted if it is found to be severely dealt with;
??26 different grades of concrete, cement used is not the same species, should be separated from mixing. Replacing the same mixing machine mixing ratio must be empty hopper, cleaning blenders, personnel replaced by the test can be carried out with the mixing ratio.

mixing station construction provides temporary power

(1) temporary power shall prepare construction design temporary power to determine the power line, the total distribution box, distribution box location and orientation of the line for load calculation, select transformer capacity and wire cross-section, the development of safe use of electricity Technical measures and electrical fire prevention measures. By the relevant departments of audit and technical director for approval and implementation. (2) distribution room (chamber), transformers and other electrical equipment located fixed barriers or safety mesh fence, Screw Conveyor not less than 2.5m, should set clear prohibition, warning signs, signs of the production and installation should follow the "Railway safe and civilized construction project site sign "- Iron ban 5, Tiejing 1 and 16 requirements. (4) should be consistent with the existing
temporary power "construction site temporary electrical safety technical specifications" (JGJ46) requirements. Project dedicated power neutral point directly grounded 220/380V low voltage electrical systems must be used to protect access to zero TN-S system, and to do three power distribution protection
and two "one machine, one box a gate-drain." (5) Power operating personnel must be certified, according to the provisions worn properly, the use of labor protection products. (6) multi-channel distribution distribution box should be marked, distribution box should gates, locks, a water-resistant measures, steel switch box must be grounded. concrete block making machine must be complete, no damage, good performance. You must use the installation
With an electric shock protector outlet. Shock protection should be periodically tested to ensure reliable performance. Do not use copper wire, iron wire and other metal instead of fuses. Prohibited in a switch to connect multiple electrical devices.
(7) nighttime construction, mixing station shall be provided within the district to meet the safety requirements for lighting.

Block machine equipment features

Equipment features: rotating force Unexpectedly fast way to ensure that the load-bearing blocks, lightweight aggregate blocks, fly ash blocks of fully dense, and shorten the time unexpectedly. All electrical components, hydraulic element are used world-renowned brands. Cement silo color touch screen and PLC applications, the realization block production line automation, saving operation interval time and improve productivity. Using four-oriented approach and with excellent long indenter guide sleeve ensures precise movement and die. Body is made of super-thick steel and special welding technology, is extremely strong resistance to vibration, strong exciting force. Control system with automatic control, easy to understand. With data input and output devices. concrete block making machine,  With advanced self-diagnostic software, real-time display system status and found that failure timely alarm. Control system has a self-locking function, avoiding malfunction generation, real-time protection of clients smooth production.

strong permeability and gelling properties

To make stone mud regeneration, turning waste into treasure, the most critical is to solve the technical problems of its solidification, due to the cement, lime, gypsum and other cementitious materials were unable to achieve the desired curing effect. Developed a strong inorganic polymeric agent, a milky white non-toxic, odorless liquid (also produces solid), the polymerization agent has strong permeability and gelling properties and shall be mixed with cement and other cementitious materials. Screw Conveyor use of Portland cement, should not use low-grade cement or fly ash cement. Curing principle: the amount of the inorganic strong after polymerization agent diluted in water and cement, stone clay, aggregate (less than 10mm waste material particles) in the mixing process, resulting in colloidal silicate, aluminate product, and then by special hydraulic brick machine pressure, pressure forming, to complete its curing mechanism, products, good compactness, high early strength, concrete block making machine  stacking. Compressive strength of up to 400 # around (40MPa), products of weathering, water stability, frost resistance melting and other technical indicators are in line with national standards. It is worth noting that the strength of the latter products, the performance as the polymerization agent and constantly growing.

Overall design of concrete mixer

First, the design of concrete mixer for selection, by comparing the final confirmation Be selected from the drop-cone reversal discharging mixer. After selection of the mixer The transmission part of the design calculations, first through the design of the mixing tube meter Operators identified stirring power, select the motor, reducer after design, which is This design is an important part in the design of the gear unit, reference materials, Wheel Loader the design of the mixer step of calculating each of the components designed reducer
, After the completion of the design of reducer, right outside of the mixing tube large open gears Design calculations, it is the difficulty of this design, because the gear ratio Large, need a good solution to this problem in order to finalize the mixer Transmission part of the design, concrete block making machine appropriate section of the drive shaft coupling Connect various devices to complete the transmission part of the design, the material on the upper portion
Of a simple design, the final synthesis of the overall unit concrete mixer
Points.

brick equipment in the domestic market potential

Brick equipment in the domestic market potential is very large, the founder of a brick machine factory success lies in technology is not mature, brick quality of the equipment is not clearance, staff quality is not good, whether the various national requirements standards, Wheel Loader, will inevitably affect the production, which is the first in a new era of credibility could not gain a foothold.
Chinese government departments have promulgated regulations expressly prohibit traditional clay brick 170 major cities in the country to use, and as early as 2004 years ago in the national capital city Disable All clay bricks, and increase efforts to support the production of new wall enterprises. Unburned and new compared to traditional brick in compressive strength, stiffness, energy saving aspects of the wide gap, concrete block making machine in appearance and practicality advantages, unlike the red brick walls, like when need to soak, uniform. Thus, the production of unburned Mianshaozhuanji already widely across the country to replace the traditional clay bricks, creating a new type of hollow brick renewal and a new revolution in the market.

Screw conveyor body generally

Screw conveyors are generally body material inlet and outlet and the drive unit has three major components; screw conveyor Have a physical spiral screw blade surface with spiral blade helicoid surface and the three forms, which spiral vane
Rotary surface application is relatively small, mainly used for transporting material viscosity and compressibility, this snail hanging face, Screw Conveyor he process of transfer operations, both of materials and finish stirring, mixing and other functions.
Screw conveyor and other concrete block making machine,  compared with a whole section of small size, good sealing performance, smooth running Reliable, multi-center loading and unloading and safe operation, easy maintenance and so on.

Spiral conveyors are of the cylindrical casing

When the material added to the fixed slot machines, due to the gravity of the material and its role in the friction between the bays, the accumulation of material in the lower slot machine does not rotate with the spirochete, but only on a rotating helical blade driven to move forward, as Turn the nut does not rotate along the translational motion of the screw for the same, to achieve the purpose of transportation of materials. Screw Conveyor loading and unloading easy multi-point, the transportation process can be completed simultaneously mixing, stirring or cooling. Of overloading sensitive, easy to plug; crushing loss of material there, horizontal screw conveyor is simple in structure, easy installation and maintenance, and troubleshooting. For horizontal or slightly inclined (20 o less) continuous and concrete block making machine loose materials, the working environment temperature -20 - +40 ℃, conveying material temperature -20 - +80 ℃. Its speed is low relative to the vertical conveying confidential, mainly for horizontal or little inclination transportation of materials, transport distance is generally not more than 70 meters.

Selected on the basis of concrete mixers reference

1, production scale, based on the number and the choice of annual concrete mixer device. 2, to produce high-quality concrete, it is necessary to choose a reliable production equipment. 3, according to the construction site to determine the size of concrete mixing equipment production capacity. 4, mainly from the advanced equipment, reliability, quality and versatility aspects to consider. 5, compulsory mixer mixing quality, Cement silo capacity, discharge without segregation, high production efficiency, able to adapt to a variety of performance concrete mixing, concrete mixing equipment currently widely used compulsory mixer 6, 7 cost performance, concrete block making machine the pursuit of equipment technical performance is unwise, unnecessary investment will increase, but only the pursuit of low investment in equipment technical performance and reduce the cost increase will bring such practices is not desirable.

Backplane transportation and other mechanical transmission device also uses

Block molding machine generally 7-8 months to complete an action molding cycle. From the set Interest perspective, Concrete mixing plant machine easy to implement technological action, and molding Machine moving parts is relatively small, relatively simple structure. So the world Molding Machine Most manufacturing companies are producing hydraulic molding machines. Of course, does not mean that the hydraulic All processes concrete block making machine are forming machine adopts hydraulic transmission, if any molding machine Plus transportation and other bottom floor and also used mechanical transmission devices.

Move larger power mode vibration molding machine

About block molding machine vibration frequency issues, from concrete vibration technology perspective, strong Forced vibration frequency as close to the concrete mixture particles is generated when the natural frequency Resonance, then reduce the minimum amplitude of up to max. Block Concrete mixer
Aggregate particle size of 3-10mm desired vibration frequency of 100-125Hz, but for a block Machines are not up to it, the United States is generally 46-47 Hz European high individual molding machine Up to 66-67 Hz. Which could be a vibrating system life, the vibration is too high, bearing And other short life, vibration frequency of some significance in theory, but in actual project
Point of view, especially for larger power mode vibration machine vibration is of little significance Because the actual vibration molding time is only 1-2 seconds, in such a short period of time to mix concrete block making machine ifferent vibration frequencies applied, compacting effect will not change significantly Technology.

Conveyor Performs necessary cleanup materials

Clogging many reasons, mainly to prevent clogging may take the following measures:
Entering the conveyor materials for the necessary cleanup, to prevent large complex or fibrous impurities into the machine causing blockage. Install hopper and clogging material level sensor, concrete block making machine and alarm. Increase the spout or lengthen trough ends to address poor or too late nesting nesting problem. Cement silo, also in the material outlet chute ends a short anti-rotation vanes mounted to prevent blocking material ends.
In attempts to prevent the discharge opening of a valve cover plate. Blockage occurs because the accumulation of materials, open the top attempts to prevent the door limit switch through the same intercept power. Minimize the transverse dimension of the intermediate hanger bearings to reduce the material through the intermediate bearing blocking material when possible. Reasonable choice of the technical parameters, such as slow speed can not be too large. Strict implementation of control procedures, so that no load starting, empty parking; ensure continuous average feed.

brick machine color brick road

1 production technology is mature: Due to high pressure molding technology, so the products of compactness, low water absorption, frost resistance, strength up to 400 # above (concrete pavers GB 300 #).
2 low cost products: Concrete mixing plant the incorporation of the product more than 80% of the powder, waste rock or construction debris, low cement content (15 to 20%), one can reduce the cost of raw materials, and the other can enjoy tax exemption.
3 small investment in equipment, launched faster: establish an annual output 60,000 m2 ~ 12 万 m2 colored pavement brick production line, the equipment investment was 160,000 yuan to 27 yuan. From equipment installation and commissioning, training workers, until the formation of production capacity, only one week.
4 product is used widely: concrete block making machine road products due to high intensity, fashionable, colorful, it is widely used. Not only can be used for sidewalks, squares, gardens, residential areas, schools and other landscaping plant, but also for parking and roadways, etc. Meet modern urban construction and landscaping requirements.

brick machine production process

1 color surface material: the colored cement or white cement, pigment powder and sand composition at a certain mixing ratio, the QM-80-type ball mill grinding from 10 to 15 minutes. Material to ensure product surface color finish and color uniformity.
(2) Primary materials: from the powder, a small amount of waste rock and trace ordinary cement curing agent, according to the mixing ratio of raw materials through the wheel grinding machine, Concrete Mixing Truck,  because products in powder, waste rock larger dosage, cement, mixed with a curing agent small amount, it will directly affect the quality mixing intensity of color brick road quality.
3 compression molding: hydraulic brick machine is equipped with four tables for four workers cyclic operation, each set of molds. Before adding colored surface layer material (quantitative), then add material to the mold box grass flat, the high-pressure line with molded brick machine, available for immediate release, stacking, conservation. Because product specifications are different, so there are changes in the molding pressure (molding pressure can be adjusted). Just to change the mold, concrete block making machine variety of shapes and sizes of colored pavement brick, square brick, grass brick, slope protection brick, standard brick and other products. Taiwan shift production 2000 ~ 7000.
4 Products conservation: Products available for immediate release, stacking, The Nature Conservancy, two weeks after filing the factory. Steam curing twenty-four hours either.