SU749898A1 - Skip hoist - Google Patents

Description

(54) SKIP LIFT

Claims (2)

The invention relates to skip lifts and can be used in ferrous and non-ferrous metallurgy. A skip hoist is known, which contains loading devices equipped with sealing edging, skips with folding sealing covers (shelters), water air connected to the aspiration system 1 Lifter 1 allows reducing dust emissions at small aspirated volumes of dusty air due to localization {and dust emission sources loaded skips, however, at this time, dust is discharged and a partial entrainment of ingot material into the air-wire of the aspiration system. These deficiencies are caused by one-sided, concentrated suction of dusty air, displaced by the loading material along the wall peripheral annular space against the flow of the ingot material. The purpose of the invention is to increase the efficiency of ensuring that skips are loaded and to prevent rotation of the entrainment of charge material into the aspiraplone system. This goal is achieved by loading the skip hoist devices of each skip with a camera dust bag compacted with the weighing bins of the loading devices directly or through the chute of the boot device and adjacent elastic elements in the loading process to the loaded skip and the shelter and in the chamber adjacent to the camera, in the loading process, in the loading device to the loaded skip and its shelter. the skip shelter for loading it, and in the openings of the side walls of the skip shelter covered by the camera, partitions of intersecting plates are installed, except for About the part of the side and top walls of the gutter of the loading devices are also made of mutually overlapping plates. FIG. shows the arrangement of equipment for dedusting skips, longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2; in fig. 4 - skip shelter position at the time of unloading. Skip 1 skip lift is equipped with a shelter 2 with apertures 3 in its side walls. Interlocking plates 4 are installed in the openings. Shelter 2 of skip 1 is rigidly attached to the elastic frame 5. Co. the sides of the loading devices (gutter 6 and weighing bin 7) cover 2 of skip 1 is open. Part of the side 8 and top 9 sides of the lower end of the chute 6 are made of inclined intersecting plates along the material path. At the top, the chute 6 is sealed with a weighing bin 7 with elastic elements 10. The lower part of the loading devices (chute 6 and weighing bin 7) of each skip is covered by the dust collector chamber I, which is attached to the upper part of the body by elastic elements 12 (for example, a conveyor belt). skip 1 and its shelter 2. The dust chamber intake 11 is attached to the chute, sealed with the weighing bin 7 by elastic elements 10 and has an opening 13 for being connected to the aspiration system (not shown in Fig.). In the dust-air intake chamber 11 opposite the loading opening in the shelter 2, a partition 14 of inclined mutually intersecting height plates is installed, the discharge openings of the chute 6 and the weighing bin 7 pass through the partition. The skip lift works as follows. Skip 1 with cover 2 is installed under the loading devices (chute 6 and weighing bin 7). At the same time, elastic elements 12 of the chamber-puschevozhokuzabornika 11 are attached to the upper part of skip 1 and shelter 2, covering the openings 3. In a closed volume limited by the camera-psikovozukuhuzabornik 11 11, skip 1, friction 2, chute 6 and elastic elements 10 and 12, after installing the skip, a vacuum is created by an aspirac con system. The charge material from the bushing hoppers 7 is alternately discharged. When a skip is loaded, the charged material creates recirculation of the polluted air due to ejection and displaces it along the peripheral space between the flow of the shunt and the walls of the skip body 1. Next, the dusty air is sucked away from all four sides of the charge flow along the continuation of the peripheral annular space above the skip; from the bottom - through the space between the bottom of the chute 6 and the bottom wall of the dust-air intake chamber 11, as well as inter-overlapping plastic lateral 8 and upper 9 thorons of the groove 6 and the partition 14; from the side - through the overlapping inclined plates 4 openings 3 covers 2 skip 1; from above — through the space between the charge stream and the shelter 2 of the skip 1. When aspirating air passes through the overlapping plates 15 of the partition 14 and the plates 4 of the openings 3, particles of the charge material in it are reflected and directed by these plates to the loaded skip, i.e. . their entrainment is prevented. When loading cknna through the chute b, the suction of the dusty air is also carried out from all four sides of the charge stream with the redistribution of costs along the considered openings. The openings between the overlapping plates of the sides of the chute 6 contribute to the dedusting of the raw material loaded both through it and from the bunker 7. During loading the skip descends due to the tension of the ropes, the leakage areas do not practically increase, since the elastic elements 12 in the places adjacent to the skip 1 and its cover 2 have a corresponding overlap. In the considered closed volume, leaks are minimized; the ejection of air by the material loaded through chute 6 is eliminated due to compaction 10, therefore, along with a decrease in the amount of aspirated air volumes, the entrapping of the charge material into the suction system is prevented. When loading the weighing bins, the hydrostatic pressure of the medium is redistributed in them, i.e. In the lower part, an overpressure is formed and dusty air is displaced through the discharge devices and leaks. In the proposed skip hoist design, these dust emissions are also eliminated. Dust removal of the skip hoist loading unit not only corresponds to the improvement of working conditions, but also the technology of loading blast furnaces. In addition, the removal of fine dust from the charge helps to increase the service life of the charging equipment: a blast furnace. Claim 1. A skip elevator containing loading devices consisting of weighing bins with gutters and elastic seals, shelter with openings in the side walls. coupled to the aspiration system nozzles, characterized in that. In order to increase the efficiency of dust removal of skips, the loading devices of each skip are equipped with a dust-air chamber. NIKOM, compacted with the pilMH weighing bin directly or through the gutter of the loading device and adjacent with elastic elements during the loading process to the loaded skip and its cover, with this chamber-hp 1 air inlet and side openings skip shelter walls covered by chambers) are made with partitions of nz mutually overlapping plates. 2. Lift pop. 1, characterized in that the partitions in the dust-air intake chamber are mounted opposite the opening in the skip shelter to secure it. Sources of information taken into account in the examination. USSR Author's Certificate No. 483438, cl. From 21 to 7/20, 1974. FIG. one p O .OL, °, 0 .., about P O-Q about. about about 1b o.- o. about C. FIG. g 11. 1 ...  b X 15 Fig 3 bunker esd1ake 3a .. b / 1one playground. Group / 1 Provision / 77 Instructions of Totikogo Second 9 Sig. ba