49results about How to "Improve masonry quality" patented technology

The invention relates to the technical field of refractory materials, in particular to a siliceous refractory mud powder, which solves the problem that existing siliceous mud powders have inconsistent materials for preparing refractory mud powders and silica bricks used for masonry furnaces, resulting in non-bonding at high temperatures. It is composed of 46-48% silica, 46-48% residual silica brick, 5-7% refractory clay, and 0.03-0.05% yellow dextrin. The material of the silica brick is consistent, and the physical and chemical indicators of the siliceous refractory mud powder described in the present invention are all better than the national standards. Silica and residual silica bricks with the same material as the silica brick of the furnace body built by the refractory mud powder are mainly used. The raw material not only realizes the maximum utilization of waste materials, but also does not appear the phenomenon that the mud powder and silica bricks are bonded in a low temperature environment, but not in a high temperature environment. On the contrary, under the action of yellow dextrin, the bonding is better It is solid, effectively improving the masonry quality of the furnace body and prolonging the service life of the furnace body. It is suitable for masonry high-temperature furnace bodies such as hot blast furnaces, coke ovens, and glass kilns.

The invention belongs to the technical field of building materials, and relates to a building block. The building block comprises a longitudinal outer wall and a transverse outer wall which are enclosed to form a hollow thermal insulation cavity, and is characterized in that: the middle part of the longitudinal outer wall is provided with a reinforcing rib which protrudes towards the direction of the hollow thermal insulation cavity; the reinforcing rib and the longitudinal outer wall are enclosed together to form a middle grouting passage which is vertically run-through; the middle grouting passage is symmetrically arranged along a middle vertical plane of the longitudinal outer wall of the building block; and the outer end face of the transverse outer wall is provided with a vertical end face grouting groove. The building block has the characteristics of high self-thermal-insulation capacity, light deadweight, high strength and the like, and has a flat appearance, high integrity and high earthquake-proof capacity after being built; in addition, by matching with a method for building a vertical thermal insulation wall or a thermal insulation wall without mortar joints by applying the self-thermal-insulation earthquake-proof building block, the construction efficiency can be greatly increased, and easiness for standardization, high cost performance and high easiness for guaranteeing the construction quality are guaranteed. The building block can be widely applied to overall maintenance outside a building structure and a bearing structure of a low-rise building, and has extremely broad market prospect.

The invention relates to a method for building a converter bottom. The converter bottom is built in a successive building and drilling mode. The method comprises the following steps of: 1) taking solid bottom gun bricks for later use; 2) building converter bottom bricks outwards along the center of the converter bottom, and starting to lay the solid bottom gun bricks when the converter bottom bricks are built to the positions of gun holes; 3) pre-positioning the bottom gun bricks, ensuring that the bottom gun bricks are closely adjacent to the converter bottom bricks, and building the converter bottom bricks among the bottom gun bricks, wherein the movement amount of the bottom gun bricks is controlled within + / -50mm away from the central line of a bottom gun; and 4) after a converter is built, drilling at positions of the bottom gun bricks corresponding to a muzzle and performing top-bottom blowing. The method effectively reduces brick cutting amount, ensures high building quality, reduces accident rate and improves building efficiency.

The invention belongs to the field of building engineering, and particularly relates to molds for inspection wells and a method for constructing the inspection wells through the same. The molds comprise the circular well mold, the rectangular well mold and the chute plastering mold. The circular well mold is used for construction of a circular well and is of a circular plate structure with a circular hollow interior, the outer diameter of the circular well mold is equal to the inner diameter of a well chamber, and the inner diameter of the circular well mold is equal to that of a shaft. The rectangular well mold is used for construction of a rectangular well and is of a rectangular plate structure with a rectangular hollow interior, the length and width of the outer side of the rectangular well mold are equal to those of the inner wall of a well chamber, and the length and width of the inner side of the rectangular well mold are equal to those of the inner wall of a shaft. The chute plastering mold is used for well bottom chute plastering and is a semicircular mold with the diameter equal to the inner diameter of a pipeline. In the constructing process of the inspection wells, the specially-made molds for the inspection wells are used for comparison control and used based on construction conditions for rectifying a deviation in time in the construction process, and error accumulation is avoided, so that the overall construction quality of the inspection wells is improved, and the working efficiency of workers is improved.

The invention provides a device for controlling the verticality and center distance of coke oven pipe brick masonry, which includes a positioning device and a pipe brick hole cleaning device. An infrared rangefinder and a target for measuring the center distance, the positioning device includes a verticality correction device and a placement frame for placing the infrared rangefinder, the position of the positioning device can be adjusted, and the target is connected to the furnace by a screw The head is fixed. The positioning device is used to quickly measure and assist in adjusting the verticality and center distance of the pipe bricks. The infrared rangefinder and the target form a center distance measurement system. The verticality correction device is used to adjust the verticality of the pipe bricks. The invention can quickly and accurately adjust the verticality and center distance of pipe bricks, avoid the problems of upper and lower pipe bricks being misplaced and excessive center distance error resulting in re-laying, ensure the quality of masonry, and improve the efficiency of masonry.

The invention discloses a multilayer roaster building method and a hearth replacing method which are easy to ensure the building quality, wherein the building method comprises the following steps of: manufacturing a hearth arch vaulting; building the wall and each layer of skew bricks of a roaster; installing the hearth arch vaulting at a position at a bottommost layer, building a hearth at the bottommost layer, and sequentially upwards installing the hearth arch vaulting and building the hearth layer by layer, wherein when the hearth arch vaulting is installed, the installation height of thehearth arch vaulting is more than the designed hearth position height; and after the slurry of a hearth brick joint is initially set, dismantling the hearth arch vaulting. Hearth bricks are firstly selected, prebuilt and numbered, and a slurry test before hearth building is done. In the hearth replacing method thereof, when the hearth arch vaulting is installed, the installation height of the hearth arch vaulting is more than the designed hearth position height, and the hearth bricks are built according to prebuilt numbers. The invention can effectively overcome hearth sinking, improves the building efficiency and quality, reduces the fault rate, saves the maintenance cost and can be used for the daily maintenance in heavy repair, medium repair and periodical repair and the building of newly-established roaster linings.

The invention relates to a hot blast main refractory material building die and a construction method thereof. The die comprises a center shaft and three supporting rods with the middle portions rotationally arranged on the center shaft. The supporting rods can stretch and contract on the two sides of the center shaft. Arc arms are hinged to the two ends of each supporting rod, one ends are provided with butt-joint clamping grooves, the arc arms are distributed around the center shaft in the same direction and are equal in length, the other ends of the arc arms can be connected with the butt-joint clamping grooves in the next supporting rods in a matched manner, and the refractory brick inner circle meeting the design requirement can be defined after the arc arms and the butt-joint clampinggrooves are connected in a matched manner. According to the die, construction is conducted in a rotation pushing manner, the number of pipe interior supports is reduced on the premise that the quality testing and die dismounting time is saved, the quality is guaranteed on the premise that space is saved, the construction quality problem can be rapidly found, repeated usage can be achieved in thenarrow space of a hot blast main, and collisions are avoided.