Medium of communication of nowadays power source is constant open up, construction of power station of wind energy, solar energy, nuclear energy is swift and violent. But, the power plant of the mainstream still generates electricity with firepower for core. We are in igneous power plant is large in lining, choose weight commonly light, intensity is tall, adiabatic the material heat preservation with good performance, reduced the weight of lining greatly so, energy-saving environmental protection. On this foundation, we are right pouring the choice of makings also with heat preservation pouring makings give priority to.
Heat preservation is pouring expecting is bulk density inferior pouring makings, basic system is in closely 1.5 the left and right sides. Pouring makings contain air hole much, bulk density is low, coefficient of thermal conductivity is small, heat preservation effect is good.
Now, let us understand heat preservation of igneous power plant pouring the construction method of makings.
1. Pouring construction heat preservation is pouring makings should adjust measures to local conditions is chosen, structural position is different, pouring the method is different also. Choose reasonable construction method, it is to assure the quality, time limit for a project, key that reduces cost.
Good in the choice pouring before makings, the preparation before we should undertake construction works
A. Should have done cooperate to compare test block, achieve construction of the ability when the design asks when test block;
B. Examination steel housing is rustily circumstance, pouring the face of armor plate carapace of makings contact should undertake dividing rust;
C. Whether is examination pattern plate propped up firm, pattern plate surface should planing machine is smooth, besmear brush a varnish, prevent pattern plate bibulous, facilitate again form removal. Pattern plate juncture should tight, have enough strength.
2. Heat preservation is pouring of makings pouring measure
A. Thermal insulation is pouring heat preservation is pouring when makings, should use artificial tamp, grain departs and increase unit weight in order to prevent. When ply is more than 75mm, answer pouring be over achieve place to need ply, meet otherwise statified come off. Juncture is in answer clean, receive straight stubble.
B. Fireproof intermediate layer is pouring heat preservation is pouring when makings, should use mechanical tamp, achieve inside make the same score outside fact. Answer when artificial tamp even and close-grained, but cannot press light. Because press light hind to make grout upgrade is returned already, make the surface more compact again, so in-house moisture evaporates not easily, produce crackle easily. Should prevent moisture to evaporate for this too fast, construction ends should build on, undertake conserve in order to keep wet.
C. Hearth is pouring heat preservation is pouring when makings, the float that use wood is patted solid can, also need not press light, can produce crackle otherwise.
D. Pouring heat preservation is pouring when makings, no matter be fireproof layer or adiabatic brick, step should be taken when body of adiabatic brick build by laying bricks or stones has interface, line plastic film or other material, prevent bibulous and adverse segregation.
E. Pouring corner transfers paragraph of heat preservation is pouring makings, with warming plate (brick) segregation of a plastic cloth should be spread when having interface, prevent bibulous. The heat preservation with corner great difficulty is pouring makings can increase water appropriately pouring makings hearth quantity, but should not be too big. Use those who have better liquidity is fireproof and pouring makings, tamp time shoulds not be too long, prevent grain depart and water to divide overmuch upgrade to return, evaporate moisture causes crackle.
F. Pouring heat preservation is pouring makings ply is inside 50mm, should use daub method to be wiped, should notice when construction will pouring makings is crowded inside steel wire, cannot have space, the requirement is close-grained, cannot increase unit weight again. Answer when daub pouring makings roll out, reoccupy wood float is wiped smooth, the surface is rough can. To avoid flaw, pouring makings surface cannot press light with iron float.
We are in basis of igneous power plant these are pouring makings construction measure undertakes pouring when makings is pouring, can seasonable apace undertakes working working. Can avoid construction mistake to bring about already so pouring makings loss, also improved project degree of safety at the same time, saved construction time.
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