5results about How to "Guarantee smooth production" patented technology

An accurate cooling system for hot-rolled coil matched warehouse steel coil stacking and chopping comprises a steel coil temperature measuring device, an industrial personal computer, a draught fan, an electric cabinet and a spraying system, an infrared thermal imager monitors total radiation infrared thermogram information and high-temperature alarm information of warehouse area steel coil stacking and chopping in real time, and the information is transmitted to the industrial personal computer through a router; the fans are distributed between two rows of steel coil stacks on the edge of the reservoir area and supply air to channels between the adjacent steel coil stacks; the electric control box controls the starting and stopping actions of corresponding equipment and adjusts the power of a motor of the spraying pump station, and the spraying system controls the work of a spraying head; a PLC module is arranged in the electric control box and used for storing a steel coil accurate cooling control algorithm, and parameters such as on-off instructions of the draught fan, the electromagnetic valve, the water supplementing pipe and the pneumatic valve are obtained through calculation. The device has the advantages that the structure is simple, the building difficulty is low, the hot rolled steel coil pile can be accurately and uniformly cooled, the hydroelectric energy loss is greatly reduced, the cooling time is greatly shortened, the production rhythm is improved, and smooth production is ensured.

The utility model belongs to the technical field of drilling machine equipment, and particularly relates to a YZ series drilling machine track shoe shaft mounting and dismounting device which is characterized by comprising two vertical fixing plates which are symmetrically arranged, two bent hooks welded to the bottoms of the two vertical fixing plates respectively, and sliding holes formed in the upper portions of the vertical fixing plates. The adjusting bolt holes are formed in the middles of the vertical fixing plates, the limiting rods penetrate through the two sliding holes and are in sliding connection with the two vertical fixing plates, and the adjusting bolts are in threaded connection with the two adjusting bolt holes. The device is low in manufacturing cost, convenient to mount and dismount and stable and reliable in operation effect, the safety coefficient of replacing the rail plate shaft is greatly improved, the time for replacing the rail plate shaft is shortened, the punching efficiency is improved, and meanwhile the labor intensity of post drivers is reduced; the accident that the auxiliary winch hook head and the steel rope are broken to hurt people is effectively avoided, the phenomenon that a crowbar is broken to cause waist flashover is effectively prevented, and smooth production of a drilling machine is ensured.

The utility model relates to a furnace door device of a coiling furnace, which is characterized in that a plurality of transition plates are arranged on a front strip threading furnace door and / or a rear strip threading furnace door, the transition plates are sequentially arranged at intervals along the width direction of the corresponding furnace door, a plurality of plate body transition grooves are arranged on the other furnace door in a matching manner, and the transition plates and the plate body transition grooves are arranged in a one-to-one correspondence manner; and when the strip threading front furnace door and the strip threading rear furnace door are both located at the strip threading positions, the transition plates are embedded into the plate body transition grooves in a one-to-one correspondence mode. In addition, the utility model also relates to a coiling furnace equipped with the furnace door device. According to the utility model, the transition plate is matched with the plate body transition groove between the front strip-threading furnace door and the rear strip-threading furnace door, so that strip steel can stably run from the front strip-threading furnace door to the rear strip-threading furnace door in a transition manner, the strip steel is prevented from colliding with the rear strip-threading furnace door, and smooth production is ensured.

This invention relates to a protective slag for sulfur-containing free-cutting steel crystallizers using photovoltaic silicon mud and its preparation method. The protective slag of this invention contains, by mass percentage, 30.6–31.6 wt% CaO, 36.7–37.7 wt% SiO2, 6.1–7.1 wt% Al2O3, 8.2–9.2 wt% Na2O, 5.0–6.0 wt% F, and 9.0–10.0 wt% C. 固 H2O up to 0.5 wt%; C 固 The carbon in the protective slag is fixed. Raw materials include 7-9 wt% silica mud, 14-16 wt% blast furnace slag, 24-26 wt% phosphorus slag, 14-16 wt% silicate cement, 4-6 wt% wollastonite, 10-12 wt% soda ash, 2-4 wt% fluorite, 6-8 wt% cryolite, and 10-12 wt% carbon powder. The preparation method includes batching, slurry preparation (solid content 40-45%), spray granulation (spray gun orifice diameter 1.0-1.5 mm, inlet temperature 450-480℃), and post-treatment. This invention enables the utilization of photovoltaic silica mud, reducing the cost of protective slag containing silica mud by 870 yuan per ton, and increasing the flaw detection pass rate of continuously cast billets from 25.99% to 55.17%, thus possessing both energy-saving and emission-reduction value and a circular economy value.

The utility model relates to a coal charging car uncovering electromagnet replacing device, and belongs to the technical field of coke oven coking equipment overhauling. The device comprises a bottom plate (3), a stand column (4) and a bracket (5), the stand column (4) is vertically arranged on the bottom plate (3), the bracket (5) is obliquely arranged at the upper end of the stand column (4), and the included angle between the bracket (5) and the upper end face of the bottom plate (3) ranges from 40 degrees to 50 degrees. According to the device, the electromagnet can be actually and directly placed on the bracket (5), and is placed at the lower end of an electromagnet base by moving the bottom plate (3), so that the replacement time of the uncovering electromagnet of the coal charging car is greatly shortened, the replacement efficiency is practically improved, the labor intensity of maintenance personnel is reduced, the downtime is reduced, smooth production is guaranteed, and better benefits are created. The problems that the inclined included angle of an existing electromagnet cannot be guaranteed, consequently, positioning is inconvenient, the working space is narrow, and the replacement efficiency is low are solved.