The slurry of aerated concrete equipment adopts lime, which has fast digestion speed and high digestion temperature.

The temperature of the slurry changes greatly in the height direction of the mold, so the heat at the bottom of the aerated concrete equipment with low temperature is very low, and it is difficult to have high temperature in the middle part with low temperature.

Therefore, the pore pressure, pressure gradient and ultimate shear stress are uneven along the die height and the speed is too fast.

The ultimate shear stress in the middle of aerated concrete equipment is very large, and the gas is easy to be restrained, so it should be stretched to the place where the ultimate shear stress is small.

Produce longitudinal cracks. The upper limit shear stress is small and the air is comfortable, but when the components continue to generate gas or air pressure, the aerated concrete equipment will also damage the top mud surface and form bubbles.

The failure of aerated concrete equipment is something no one wants to happen, but no one can guarantee that the equipment is free from problems and can only prevent it.

According to some production conditions of the equipment, hidden dangers of the equipment can be found in time, and some simple faults can be repaired to prevent small faults from being dragged into major accidents.

During the production of aerated concrete equipment, the gap burst may also be caused by poor air permeability.

When the strength of the green blank is too low when it is introduced into the kettle, the wall layout can not bear the pressure difference in the blank in the vacuum process.

When the pores are uneven or the aluminum powder degreasing agent is inappropriate, it will also cause cracking; But all kinds of outbreaks have their own characteristics.

If the lime particle or pore layout is poor, we will adjust it according to different conditions.

In the production process of aerated concrete equipment, the fracture of green body is mainly reflected in the appearance of the product.

Peel off the outer surface of the product, with a large block of about 10cm2 and a small block of 1cm2 to form the outer surface.

The main cause of the attack is over burned lime particles or unmixed lime particles.

Because the quicklime particles are not digested during the static stop of the casting, but disintegrate rapidly after being loaded into the kettle, the product is damaged with the expansion of volume.

After digestion or cutting, undisturbed lime agglomerates can now cause damage to the green body.

During autoclave maintenance, the large expansion value of lime agglomerates further leads to broken blocks.

Dry construction methods with precise blocks and professional adhesive layers and ordinary cement mortar using ordinary building blocks and traditional building methods.

From the appearance alone, the wall built by dry masonry method is "taller" than the wall built by traditional construction methods.

Let's learn about special adhesives and dry structures:

1. Why does aerated concrete and dry construction have a special adhesive?

In the long-term construction, it is very difficult for aerated concrete block to be closed by porous with special structure, the surface water is fast, and spread to the inside, forming the phenomenon of pouring through. The aerated concrete block is pre poured with the traditional pouring method. When the traditional mortar is used for construction, due to the poor water retention, the traditional mortar and masonry mortar will be absorbed by the aerated block on the water, resulting in insufficient cement curing, abnormal strength, reduced bonding mortar and compressive strength, unstable bonding between mortar and masonry, and affecting the quality of masonry wall. Cracking, hollowing, falling off and endless faults. Therefore, the traditional mortar is not suitable for building blocks. When building mortar for aerated concrete blocks, first of all, it is necessary to ensure good water to prevent wet mortar blocks from being absorbed, so as to ensure the masonry quality.

Inner hole structure of aerated concrete equipment products

2. Compared with traditional buildings, dry masonry autoclaved aerated concrete block masonry has the following characteristics:

3. The wet construction of masonry mortar is replaced by special adhesive, and the thickness of mortar joint is 2mm ~ 3mm, which effectively reduces the thermal conductivity of masonry and eliminates the generation of mortar joint of bridge.

4. The method of not mixing mortar and prohibiting the watering of autoclaved aerated concrete blocks in front, which not only saves water resources, but also facilitates the on-site civilized construction management.

 

1. The temporary construction power shall be well protected and connected to neutral, equipped with leakage protector and three-level distribution two pole protection. Generally, the mixer rotates in one direction for mixing. Therefore, when connecting the power supply, pay attention to the direction of the arrow on the mixing drum.

 

2. Before using the mortar mixer, it must be accepted by the building security management department to confirm that the mortar mixer meets the requirements, and can be used only after a permit or acceptance procedures are issued. The installation place shall be flat and solid, and the mechanical installation shall be stable and firm.

 

3. Before startup, check whether the insulation and grounding of electrical equipment are good (if protective grounding is adopted), and whether the protective cover of belt pulley is complete.

 

4. After start-up, the mixing operation can be carried out while adding water after idling and checking that the rotation direction of the mixing blade is correct.

 

5. When mixing mortar, mixing machine is not allowed to use foot or shovel, wooden rod to dial down, scrape and mix the cylinder mouth, tools can not collide with stirring leaves, and even when rotating, the tools are put into the hopper and grout. No one is allowed to stand under the hopper of the mixer. When the bucket is lifted and stopped, the security hook shall be hung.

 

6. During operation, it is not allowed to extend hands or wooden sticks into the mixing drum or clean the ash paddle at the mouth of the drum.

 

7. In case of failure during operation, the power supply shall be cut off, the mortar in the cylinder shall be poured out for maintenance and troubleshooting.

 

8. After operation, clean and maintain the inside and outside of the mortar mixer and the site, cut off the power supply and lock the box door.

Aerated concrete block equipment has good processing performance. It can be sawed, planed, nailed, ground and threaded in the manufacturing process. It brings great convenience to construction. When the temperature of aerated concrete block equipment is lower than 600 ° C, the compressive strength will increase slightly.

When the temperature is about 600 ° C, the compressive strength is close to the compressive strength at room temperature. Therefore, the fire resistance of aerated concrete as a building material has reached the fire protection standard. From the vent structure of aerated concrete, it can be seen that due to the internal structure of aerated concrete, a large number of closed gas has a large number of evenly distributed closed holes, so it has sound absorption performance, which is not possessed by materials. Available in general buildings.

The compressive strength of the products produced by the aerated concrete block equipment exceeds 25 kg / cm3, which is equivalent to the compressive strength of 125 clay bricks and lime sand bricks. This is because aerated concrete is light and has good overall performance. The inertia force during earthquake is small and the holes are evenly distributed, which has certain seismic resistance. This will be of great benefit to our earthquake prone country.

Aerated concrete block equipment

According to the basic functions of various raw materials in the production process of aerated concrete block equipment, they can be divided into four categories. Namely: basic constituent materials, gas generating materials, regulating materials and structural materials.

1. The basic constituent materials are silicon and calcium materials; Gas generating materials refer to gas generating agents and bubble stabilizers.

2. Regulating materials include gas generation process regulator and autoclave process regulator; Structural materials include reinforcement and reinforcement preservatives.

In the production process of aerated concrete equipment, other different auxiliary materials can also be used according to the process requirements and the specific conditions of each production equipment.

In the static hardening process of aerated concrete block blank, the hardening effect is different from that of non insulation. If the temperature of the blank disappears rapidly, for example, if there is no heat insulation in northern winter, the blank will not only be greatly affected by the hardening speed, but also shrink and sink seriously. Therefore, at present, all factories tend to use insulation and stop equipment to ensure the solidification speed and uniformity of billets.

Aerated concrete block equipment

The cutting machine used in the aerated concrete block equipment mainly divides and visualizes the aerated concrete body to meet the shape requirements of aerated concrete products. The cutting process reflects the aerated concrete, which is easy to form, large in size, easy to separate and flexible in appearance, can meet the needs of different applications, and can be mechanized through large-scale mechanization. It is also a kind of aerated concrete different from other concrete.

When using aerated brick equipment, the materials will be broken into particles after leaving the factory, and stored in multiple waterproof sealed silos, and stored separately according to batch and quality conditions. When discharging is used, multiple silos are used together with discharging. The silo is respectively connected with the single belt conveyor through the electromagnetic vibration feeder and fed evenly to the grinding process. In addition, multiple silos are used as raw materials and stored in admixture storage tanks, which also facilitates the production of silos of different quality and varieties. The storage structure should be set up using allocators or other methods. How to store? Ensure that materials are used in order of priority.

After feeding, the raw materials of aerated brick equipment shall be stored in multiple hoppers according to quality, thickness and humidity. When discharging, it shall be used together with multiple hoppers. The hopper is connected with a single belt conveyor through an electromagnetic vibration feeder. The homogeneous feed is sent to the mechanical eccentric vibration or mechanical conical screen to screen the sundries, and then the storage box is sent to the batching. The storage of grinding head cylinder shall be set as stable feeding. According to the condition of lime particles, stepless speed regulation equipment is used for feeding. The flow required for grinding raw materials is continuously adjustable and can be adjusted in time according to the process requirements and the fineness of discharge. During the operation of the mill, the tail ventilation shall be maintained to maintain the internal temperature and humidity of the mill, so as to ensure the balance and continuous production of the mill. The ash powder shall be connected to the conveying equipment and then sent to a sealed moisture-proof storage box.

The application of aerated brick equipment production line in various industries such as construction is gradually increasing, and the investment in aerated brick equipment production line is also increasing. I believe everyone knows how to use aerated brick equipment. In order to better help you use aerated brick equipment, the following small series will introduce some aspects of installation, commissioning and acceptance of aerated brick equipment production line.

Requirements for installation, commissioning and acceptance of aerated brick equipment production line:

1. Whether the equipment is fixed and whether the equipment is fixed after installation;

2. Whether or not the maintenance line of aerated brick equipment production line is reserved, all cables, cables, control lines and power lines in and out of distribution cabinet and console shall be arranged in order, and the belt shall be neat and beautiful. Identity added.

3. The cutting machine of aerated brick equipment production line is the core part of the whole production line to ensure the level and accuracy of the cutting machine. Other equipment shall operate stably after installation, and there shall be no noise during operation;

4. If the paint on the equipment is "painted" during installation, the paint shall be "polished";

5. Each pipeline and valve shall be installed without leakage, the "pipeline" shall be in good condition, and the steam pipeline shall be insulated.

After the aerated brick equipment brick is formed, the green body is assembled on the parking line in front of the kettle, and the kettle door of the autoclave to be discharged is opened. First, pull the finished tank car in the winch out of the winch, and then prepare the kettle for steaming. The vehicle hoist is pulled into the autoclave for maintenance. Lift the finished products on the brick truck of aerated brick equipment to the finished product warehouse with bridge crane, and then lift the empty truck and the bottom of the kettle back to the return line. After cleaning the molding, use the hoist to pull back the coding frame. One cycle. The above are some requirements and matters for the installation, commissioning and acceptance of aerated brick equipment production line. I hope it will be helpful to you in the future.

Aerated concrete equipment is operated outdoors and has a large area, so it can not be used indoors. Therefore, it is inevitable to rust when often exposed to the wind. Steel will rust when it is in wet environment and in contact with water. Therefore, it is suggested that we should protect and maintain the machine and remove the rust of aerated concrete equipment.

There are usually three methods for derusting aerated concrete equipment: chemical derusting and mechanical derusting.

 

Chemical descaling: the acid in the descaling solution reacts with rust to form water-soluble salt and wash it off. Therefore, it is washed again. Its advantage is better derusting effect, but its disadvantage is easy to corrode. The metal surface needs to be cleaned after pickling. If it is not cleaned, the residual salt will seriously affect the adhesion of the paint film. Mechanical derusting method: sand blasting machine, polishing machine, angle grinder, steel wire brush and other mechanical equipment are used.

Firstly, the aerated concrete equipment shall have good anti freezing and waterproof protection to ensure that the production site will not be too wet and avoid freezing. The humidity and water content of raw materials shall be strictly tested, and the raw material ratio shall be met. The fineness and quality of raw materials shall be checked. If the aerated concrete equipment encounters rain and snow, protective measures shall be taken to avoid rain and icing.

 

For the work of aerated concrete equipment, the maintenance time of aerated concrete equipment, the location of lubricant, interval, etc. shall be clearly specified. During production, if the aerated concrete equipment has abnormal noise, the inspection and maintenance shall be stopped in time to ensure the normal operation of the equipment.

According to the statistics of sales personnel, 40% of customers only know the price of aerating block equipment and don't care about the performance of the equipment. Why do they have such a heart? It is understood that it is generally because of problems such as land, personnel and funds. Many factors should be taken into consideration when purchasing aerating block equipment, such as the scale of the manufacturer, the quality of the equipment and pre-sales, in-sales and after-sales services, so as to buy equipment with good cost performance.

Aerating block equipment

 

1. After sales service:

 

Clearly understand the services provided by the manufacturer after purchasing the equipment. For example, it is not easy to pay for installation, training, commissioning, transportation, site planning, etc. if there is no installation and training of manufacturers, it will be difficult to operate, and it may bring you a lot of inconvenience and loss.

 

2. Understand products

 

Understand the production mode, model, production capacity, power size and price of gas free block equipment in detail. Although the equipment investment ranges from 160000 to 300000, you should understand it clearly before buying to avoid economic losses caused by buying inferior products. (remind customers: 1. One price and one goods. Cheap goods are not good goods, and good goods are not cheap. 2. Don't trust installment payment manufacturers to avoid falling into the price trap).

 

3. Combine your needs

 

Through the understanding of the above aspects, choose the equipment suitable for your needs, such as the production capacity you need, your capital status, production conditions and production environment, etc. Only these aspects are combined. Only through their own understanding and investigation can they buy appropriate equipment.

 

4. Investigate merchants

 

This is very important. Businesses should investigate clearly, such as the manufacturer's business license, the size of the manufacturer's land occupation, the manufacturer's manufacturer, the manufacturer's reputation, the manufacturer's after-sales service, product quality, understanding the advantages of the manufacturer's equipment, etc.

 

Aerating block equipment

 

The requirement of aerating block equipment for production conditions is not high. The simple shed can be used as the factory. The products are stored in the open air without warehouse, and the requirements for the quality of workers are not high.

 

The investment can be large or small, and the production mode is flexible. It can start with a small amount of mold investment, or directly invest in large-scale production, either fixed site production or mobile production.

As an important part of wall material innovation and building energy saving, aerated block produced by aerated concrete equipment is an ideal wall material to replace clay brick after years of application and practice. It has strong competitiveness in various wall materials. Aerated concrete will be a new lightweight building material developed vigorously in recent ten years. So, what are the advantages of investing in aerated concrete equipment? Let's have a look.

One of the advantages, which is also the advantage of the foundation. All the raw materials needed for the production of aerated concrete equipment are ubiquitous and very low-cost raw materials. Including sand, fly ash, fly gangue, slag, tailings, etc.

The second advantage is China's policy advantage. Under the advocacy of ecological civilization, China's wall reform policy is a strong support for the better development of aerated concrete equipment, and China's policy is supported by practical measures of tax reduction and exemption, which is a favorable advantage for the rapid development of the industry.

The third advantage is scale advantage. Our company has its own R & D base and production workshop, with mature and reliable technology and stable equipment quality.

The fourth advantage is technical advantage. Compared with traditional clay brick and solid brick, the composite material produced by aerated block has the advantages of low cost, simple process, low carbon and environmental protection, and solves all the problems of traditional process.

The fifth advantage is the advantage of after-sales service. With the concept of win-win cooperation and the purpose of service above, our company provides complete services for every customer.

The above is the relevant introduction of the advantages of aerated concrete equipment. Our company can provide customers with a full set of services from the aspects of site design, equipment installation, technical guidance and after-sales maintenance.