Concrete products plant

 

(57) Abstract:

The invention relates to the construction materials industry, in particular to the plants for the precast concrete industry. The invention provides improved performance and expanding the technological capabilities of the molding shops. Concrete products plant consists of concrete, reinforcement-picking, molding workshop and warehouse of finished products, equipment for production and circulation of coolant and refrigerant pipeline connected lines with thermoformage, while the existing facility includes a production line with the positions of the feed in the hopper and placement of concrete mixture in an airtight thermoform and high-temperature processing of concrete, reinforcement and picking the workshop is perpendicular to the moulding shop, on the supporting structures of the coating which is placed a device for producing and circulating the coolant and the refrigerant which is provided with an idle pipeline system, the existing facility is equipped with a storage hopper to heat the concrete mix and located underneath the transport truck with a tank-concrete, communicated with the coolant piping .

The invention relates to the construction materials industry, in particular to plants for the production of precast concrete.

There are various designs of plants, concrete products with different arrangement of the main and auxiliary shops.

The closest in technical essence is a concrete products plant, which contains the reinforcing picking plant, concrete mixing plant, moulding workshop and warehouse of finished products, while the plant uses the hermetic thermoform with lids. In addition, the plant contains installation on production and circulation of high-temperature fluid and a cold fluid or refrigerant pipeline connected lines with thermoformage.

The existing facility contains lines with the vehicles and crane equipment. Manufacturing of the products is also carried out in above-ground implementation of the basic operations (E. Kazakov, high-Temperature heat treatment delikatny concrete in a closed molding equipment, Moscow, stroiizdat, 1973, S. 102-103, 125-132, 143-159).

The objective of the invention is to increase the productivity and expansion of technologically advanced, the products, consisting of concrete, reinforcement-picking, molding workshop and warehouse of finished products, equipment for production and circulation of coolant and refrigerant pipeline connected lines with thermoformage, while the existing facility includes a production line with the positions of the feed in the hopper and placement of concrete mixture in an airtight thermoform and high-temperature processing of concrete, reinforcement and picking the workshop is perpendicular to the moulding shop, on the supporting structures of the coating which is placed a device for producing and circulating the coolant and the refrigerant which is provided with an idle pipeline system, the existing facility is equipped with a storage hopper to heat the concrete mix and located underneath the transport truck tank with concrete, communicated with the piping coolant and refrigerant, and thermoform placed below the level of movement of the transport cart stationary.

In addition, the plant reinforced concrete storage hopper can be equipped with a mixer and contain internal and external termodeck with input and output pipes for the circulation, respectively, coolant and refrigerant, PDE having the pick of the shop, combined with reinforcement, provides this shop simultaneously two properties - shop for complete technological transport trolleys moulding workshops and workshops for the manufacture of reinforcing products.

In addition, the design of the post on high-temperature processing of concrete Central pipe supply line fluid to thermoformed having power transport line purchases due to the presence in the system of the bunker-memory property of the heater and drive concrete mixtures, and the storage hopper in the presence of termodeck outer and inner with adjustable valve at the outlet port and by regulating the speed of exit of the cold fluid, becomes the property of a temperature controller mix concrete.

In Fig. 1 - 3 presents schematically the design of plant equipment of workshops with the necessary equipment. Moreover, in Fig. 1 shows a plan of the plant at the level of the top of the hopper drive, which design in the context shown in Fig. 3 and section a-a (Fig.2) plan of the plant is made up to the mark above the top cover moulding shop.

Concrete products plant consists of moulding workshops 1 (see Fig.1), perpendicular to which the yekha 2, 4 is equipped with electric bridge cranes 5, and molding workshop 1 is equipped with technological transport trolleys 6, and at the level of transport supply of concrete from plant 3 - bins-drives 7 to heat the concrete mix (see Fig.1 and 2). For import from plant 2 to plant 1 required complete equipment with materials for technological transport trucks, as well as for the export of finished concrete products from plant 1 to the warehouse 4 provides concrete track, respectively, 8 and 9 with the transport trolleys (carts not shown). Arrows on the plan of the plant (see Fig.1) shows the direction of expansion of the plant if it needs further development.

For the manufacture of concrete products molding workshops 1 are stationary thermoform 10 with lids (see Fig.2). On the supporting structures of the cover 11 workshops 1 posted by posts 12 high-temperature processing of concrete, comprising a tank for the heated heat carrier 13, the pump 14, the feeding coolant through a heater 15 in the Central pipe line 16 supplying heated fluid thermoform 10. Not shown here idle pipeline installation system for high-temperature processing of concrete, neobamboom 14 and into the furnace 15, where is heated, back into the tank 13.

The location on the floor of the shop 1 post with equipment for high-temperature processing of concrete rational from the standpoint of economy of production area, effective circulation of the coolant, fire safety and sound insulation.

The storage hopper 7 as part of the Central line 16 connected thereto through valve 17 to 19. In this case, the hopper 7 is composed of the inner 20 and outer 21 termodeck (see Fig.3), which through the inlet 22 and 23 and the output 24 and 25 tubes fail and display accordingly cool X and heated tons of fluids.

At the outlet port 24 of the cold coolant X adjustable valve 26. For circulation of cold fluid X in compartment 20 of the hopper 7 post by heat treatment of concrete has an extra pump of small capacity. For mixing with heated concrete mix storage hopper 7 is equipped with a stirrer 27 (see Fig.3), and for issuing the already heated mixture into the hopper of the concrete technological transport truck (2) - gate 28.

In Fig.2 is not shown transport supply line cold concrete mixes of concrete mixing plant davlenie concrete products molding workshops 1 are in groups "a" and "B". Start with group thermoform "And". Before you start make dismantling thermoform 10 of this group, transportation and loading of finished concrete products on the truck for removal with the help of technological transport trolleys 6. During this time in picking the 2 workshops on special stages are completed in specific containers (bins) the necessary equipment with materials (kits for technological transport trucks to work on one shift), which on trolleys on tracks 8 (see Fig.1) serves in the shop 1. There are available kits attach to the platform with clamps technological transport trolleys 6 (2). Only after completing these trucks start with a group thermoform "And" preparatory work, which included cleaning thermoform 10, Assembly, lubrication formwork surface and the reinforcement of manufactured concrete products. And grease thermoform perform more intense, given the further heating of thermoform before concreting.

Upon completion of the preparatory works of the concrete mixing plant 3 transport lines in the storage hopper 7 served cold concrete. Simultaneously, the operating mode include a fast high-temperature Abramov the first mode, the unit operates with a constant heating the circulating coolant to the maximum heating temperature of concrete mixes (i.e., for example, include a portion of the gas burners of the furnace 15), in the second heating mode, the temperature is increased up to the temperature of the isothermal period of heating the concrete mode of heat treatment (include all the burners of the furnace 15). There may be other modes of heating installation.

When turned on to heat the concrete mixtures of the first heating mode of the heat carrier installation high-temperature processing of concrete it idle pipeline system is shut off and mode include pipeline system 16 supplying heated coolant T in thermoform 10. While the heated coolant is passed through the storage hopper 7, opening valves 17, 18 and closing the valve 19 (see Fig.2). Then he entered in the input collectors thermoform 10, where to ensure uniformity of temperature rise at the same time comes and the cold coolant from the secondary system of high pressure. In other words, the preliminary heating of the concrete in the hopper 7 is performed while heating thermoform to the same temperature. And heats only thermodon and termonorte thermoform. This will help to eliminate heat loss of the heated concrete during pouring.

When p is on termodeck 21 (see Fig.3), where simultaneously through the inlet 22 into the inner termodeck 20 serves cold heat carrier of X, the rate of output which regulate the regulating valve 26.

The warming of the hopper 7 is produced with the simultaneous intake of plant 3 and the mixing 27 concrete mixes. By regulating the valve 26 quit rate of cold fluid X from termodeck 20 control the speed of temperature rise mix concrete mixture to a predetermined temperature (3).

At the end of cooking heated concrete mixes fit under the storage hopper 7 technological transport carriage 6, open the shutter 28 and the heated concrete mixture is discharged into the hopper of the distributor of this truck, with the help of which perform further concreting thermoform 10 group "A". When pouring the appropriate equipment transport trucks spend 6 sealing and smoothing the surface of the laid concrete.

After concreting thermoform 10 open valve 19, close valves 17, 18 and the heated coolant continues to flow into the pipe system 16, only bypassing the storage hopper 7. When this cold calonego pump and the valve 26 is turned off. Further, the hopper 7 are cleaned and washed for further work.

At this time, thermoform 10 tightly closed termokraskoy, which through the corresponding nozzle serves the heated coolant. After that, the installation of high-temperature processing of concrete switch to the second mode of heating the coolant and start thermal treatment of concrete manufactured concrete products in thermoformed group "A" through constant circulation of high-temperature fluid compartments through thermoform and its subsequent return through the Central pipe exhaust system coolant from thermoform into the container 13. The speed of rise of temperature of heat treatment of concrete provide by regulating the feed rate of the cold fluid of high pressure in the inlet headers of thermoform 10.

Thus, the circulation system of the heat carrier for heating this setup for high-temperature processing of concrete provides ultimately simultaneous preheating thermoform and cold concrete mixes to the same temperature, and performing heat treatment of concrete manufactured products.

After turning on Vysotskii in thermoformed group "B". Moreover, the preparatory work in this group thermoform time should be close to the time duration of heat treatment of concrete (periods of high temperature and isothermal heating) group thermoform "And" that ensures continuous operation in high-temperature processing of concrete in the operating modes of heating.

After the isothermal heating of the concrete products group thermoform "And" close and open the appropriate valve position on high-temperature processing of concrete, and a system of circulation of the coolant at the heat transferred to the group thermoform "B" switching of the second heating mode of the heat carrier at first.

At the same time for the first group thermoform "And" include system the circulation of the coolant for cooling the purpose extracts a specified period of cooling mode, heat treatment data of concrete products.

Under thermoform "B" similar to the "a" perform concreting and heat treated concrete.

Given the constant duration of the periods of heat treatment of concrete for concrete manufactured products, the duration of other technological operations (dismantling and loading finished the products sequentially from one group thermoform "And" the other "B" and back using two technological transport trolleys 6 and two track 9 on the export of finished products (see Fig.1). It is also possible location in one Bay shop 1 symmetrically with respect to the Central vertical line of the coolant 16, two storage hoppers 7, which are manufactured simultaneous preheating of concrete mixes and uploading them into two technological transport trolley 6. All this will determine the number of stationary thermoform in the moulding shop 1, its power and size.

Hence, the cooling time of concrete products group thermoform "And" should be closer in time to the duration of the concrete products group thermoform "B", where after turning on the heat treatment of concrete this group disables the circulation of the coolant in the cooling group thermoform "And". Then here perform dismantling thermoform and finished concrete products transported and placed on trucks for the export of products. Provides for removal of concrete products to the warehouse 4 to the beginning and end of each shift on tracks 9 (see Fig.1) simultaneously with all shops 1, catching one truck over another.

Approximate turnover of thermoform in workshops 1 - one revolution in one shift.

The use of the considered design of the plant concrete ISD workshops for the Assembly in the molding workshops technological transport trolleys extends past and allows to mechanize and automate the aerial technological operations. This reduces the time of manufacture of concrete products, increases the turnover of thermoform and productivity of the molding shops.

2. The location on the supporting structures of the coating of the molding shops installations for high-temperature processing of concrete allows you to save floor space as the factory and the shops and effectively with the position of the brine, fire safety and sound insulation.

3. The presence in the Central pipe line supplying fluid to thermoformer the proposed bin storage allows you to efficiently warm up the cold concrete mixtures immediately before laying them in thermoform. The design of the hopper drive provides performance of any given heating concrete mixes. All this greatly expands the possibilities as installation of high-temperature processing of concrete and molding workshop.

4. Preheating the pressurized thermoform and laying them in heated concrete mixtures greatly accelerate the hardening of concrete, especially using high-temperature treatment, which reduces the manufacturing and HC is at idle pipeline system allows for process interruptions of production does not stop the installation and use at this point, the heated coolant for various other purposes.

6. Rational relative positions of the main moulding and fitting shops take into account the possibility of further expansion of production, where simultaneously with the increase in the number of the molding shops elongate and pick the shop.

7. Installation design for high temperature processing of concrete allows you to transfer control to full automation using computer systems.

1. Concrete products plant, consisting of concrete, reinforcement-picking, molding workshop and warehouse of finished products, equipment for production and circulation of coolant and refrigerant pipeline connected lines with thermoformage, while the existing facility includes a production line with the positions of the feed in the hopper and placement of concrete mixture in an airtight thermoform and high-temperature processing of concrete, characterized in that the armature-picking workshop is perpendicular to the moulding shop, on the supporting structures of the coating which is placed a device for producing and circulating the coolant and the refrigerant which is provided with an idle pipeline system, the existing facility is equipped with a storage hopper for nymi with pipelines coolant and refrigerant, and thermoform placed below the moving transport trolleys stationary.

2. Plant p. 1, characterized in that the storage hopper equipped with a stirrer and contains internal and external termodeck with input and output pipes for the circulation, respectively, coolant and refrigerant, and the outlet for the refrigerant has an adjustable valve.

 

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