SU854441A1

SU854441A1 - Jigging machine

Info

Publication number: SU854441A1
Application number: SU772498065A
Authority: SU
Inventors: Борис Яковлевич Лившиц; Олег Валентинович Старицын; Владислав Павлович Скнар; Аркадий Григорьевич Беличенко; Иван Федорович Безлюдный
Original assignee: Научно-исследовательский и опытно-конструкторский институт автоматизации черной металлургии
Priority date: 1977-06-20
Filing date: 1977-06-20
Publication date: 1981-08-15

Description

Изобретение относитс к обогащению каменного угл методом гидравлической отсадки.The invention relates to the enrichment of coal by the method of hydraulic jigging.

Известна отсадочна машина дл обогащени угл , включающа корпус, разделенный на породное и промпродуктовое отделени , воздушные камеры , решета, устройства.загрузки исходного материала и разгрузки продуктов разделени , в которой с целью повышени эффективности отсадки удалени избытка воды между породНым и промпродуктовым отделением имеетс обезвоживающее сито С .A well-known jigging machine for coal enrichment, comprising a hull divided into rock and industrial products, air chambers, sieves, raw material loading devices and discharge of separation products, in which, in order to increase the efficiency of jigging away excess water between the rock and industrial products, there is a dehydrating sieve WITH .

Наличие сита уменьшает производительность отсадки на единицу занимаемой площади, а забиваемость его служит причиной снижени эффективности отсадки.The presence of a sieve reduces the jigging performance per unit area, and its clogging causes a decrease in the jigging efficiency.

Известна отсадочна машина дл обогащени угл , включающа корпус, неподвижное решето, подрещетное и надрешетное отделени , воздушные камеры, приспособлени ДЛЯ загрузкиA well-known jigging machine for coal enrichment, including a body, a fixed sieve, sub-sieve and nares grate, air chambers, devices for loading

ИСХОДНОГО материала, разгрузки продуктов разделени и водосливное приспособление с заслонкой, размещенное в боковой стенке корпуса С23INITIAL material, discharge of separation products and drainage device with a flap located in the side wall of the housing C23

Ввиду того, что водосливное приспособление сообщаетс с подрешетным пространством машины, из процесса отсадки выводитс часть направл емой в машину подрешетной воды, чем ослабл етс ее воздействие на постель отсадочной машины, так как она не проходит через отверсти решет, что ведет к снижению качества продуктов обогащени .Due to the fact that the overflow device communicates with the undersize space of the machine, part of the undersize water sent to the machine is removed from the jigging process, which weakens its impact on the bed of the jigging machine, as it does not pass through the sieve holes, which leads to a decrease in the quality of enrichment products .

Цель изобретени - повышение качества концентрата.The purpose of the invention is to improve the quality of the concentrate.

Поставленна цель достигаетс тем, что водосливное приспособление снабжено решетками и соединено с надрешетым отделением.The goal is achieved by the fact that the overflow device is provided with gratings and is connected to the permissible separation.

Claims

The drawing shows a jigging machine, general view, longitudinal and transverse section. The jigging machine consists of body 1, divided by sieve 2 with discharge windows 3 into over grate 4 and under grate 5 compartments. Discharge windows 3 are connected to compartments 4 by means of accumulating pockets 5 and unloaders 6. The machine has a loading device 7 and a chute 8 for unloading concentrate. A spillway device 9 with gratings 10 is mounted on the side wall of the housing. The housing 1 has an air compartment 11 for creating liquid pulsations. Otsadochna machine works as follows. The original coal along with the transport water enters through the charging device 7 to the jigging solution 2. The separation of rock and coal takes place on the basis of density differences separated by the influence of alternating flow streams: upward, resulting from the pressure of compressed air on water. air compartment and strengthened by the supply of undersize water, and the downward, resulting from the release of compressed air from the air compartment 11 and relieve pressure on the water, weakened by counter flow dy The breed, as the heaviest product, is lowered onto sieve 2 and is in the lower layer. Moving on the sieve 2 along the machine, the rock reaches the discharge port 3, through which it enters the accumulating pocket 5 and is transferred by the unloader 6 to the compartment 4, where it is lowered into the lower part of the machines and removed by a dewatering elec. The concentrate, along with water, in each of chute B 14 is directed to dehydration. The excess transport water through the grate 10 and the overflow device 9 is brought outside the jigging machine. The presence of a spillway device permits the removal of excess trash water out of the jigging machine, without reducing the positive effect of the flow of undersize water. Reducing the excess amount of transport water does not reduce the horizontal component of the bed velocity, therefore, improves the separation efficiency of the original coal that is in the jigging machine. The invention The jigging machine, comprising a casing, a fixed sieve, a sub-sieve and a sieve compartment, air chambers, devices for loading the source material, discharging separation products and a weir fixture with a flap, located in the side wall of the casing, is different in that improving the quality of the concentrate; Sources of information taken into account during the examination 1. USSR author's certificate No. 314547, cl. B 03 B 5/24, 1970.

2. USSR author's certificate number 492994, cl. At 03 B 5/24, 1974 (prototype).

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