SU700404A1 - Feeder for pneumatically transporting loose materials - Google Patents

Description

one

This invention relates to the pneumatic transport of bulk materials, in particular to pneumatic injection devices with top discharge.

A known feeder for a device for pneumatic conveying of bulk materials, comprising a tank with a conical bottom, a perforated vertical pipe installed along the axis of the tank and connected to a source of compressed air. A horizontal disk is mounted on the lower end of the pipe, and perforations are made on the lower section of the pipe at a length corresponding to the height of the material located on the disk at an angle of repose 1.

However, the known structure does not provide an efficient twist of the gas carrying solid particles, which disturbs the distribution of peripheral air velocities and further increases the hydraulic losses. This leads to an increase in consumed energy and to a decrease in the quality of metering of material flow.

Also known is a feeder for pneumatic conveying of bulk materials, comprising a housing with a transport pipeline placed in it and an aerating device installed in the bottom of the housing and a nozzle nozzle connected to a supply air system.

The aerating device of this feeder is made in the form of a system of channels that are supplied to the compressed air supply system through the driver of air flow pulses.

The disadvantages of this feeder are as follows:

the channel system of the aerating device is removed from the active suction area and there is no tangenic, more efficient air supply. As a result, the energy consumed and the amplitude of the pulsation of the rate of matter increase, making it difficult for the inertia-free: to control the process. The construction of aerial devices does not preclude the zone of air that requires air supply. Under large, unstable pressure. The purpose of the inventor is; reduction of power consumption and provision of non-inertial control of operating modes. The goal is achieved by the fact that the aerating device is made in the form of a concentric with a nozzle of a vacuum chamber with openings in its bottom: part of the inner surface of the bottom of the case has the shape of a surface of a vaddena the constant pressure of which This option is defined by the method of electrical engineering. Hs trait; ; e shows the lower part of the feeder in the section; Pi-tat el contains a body of 1 s. a tailor pipe unit 2, a nozzle for ™ tank 3, and an azure-twisting device made in the form of a mushroom-shaped chamber 4; in the lower part of which are placed the holes of the 5. Vis. / Trac. surface 6 of the dnsd of the hull, representing the surface of the BpameHiiK with the generator: - which is made with. The head of the head, the flow, the control and the regulation of the air pressure are carried out by means of air ducts 7 and 8 j of pressure gauges E and j O, gearbox 1.3. and 12e and talsezhe chokes 13 and 14, Compressed air nodaE1TS from the air blower installation 15, The technician works as follows "-1M in the way. The operation of the blower L. 5; and the speed of the drive is Cherren Drossed .14, the gearbox 12 enters the c-: i. (io-. j: sn. ::: o; 1npa gpubokro) syd 2, G / 1sp C} 7: -bill; yy- .31t; h ;. in Bskhdukhovod S with. nc; 3.ajci. Dodaecha chores throttle 13.. Сг 11 s. Зо AIR air duct 7 Е, bottom chamber 4 "Air through holes 5 forms: rutsnuyu poured streams of flow. As per second 6 days old Kopnyi fl 1 u :: n1С:; in the region of the permit: m; o; {5b created by the nozzle 3. In aiOTBft there is a speed and with a given speed AND KOHireHTpajj-en ipaHcnopTHpyeMoro material u.: ;;.,. one setpoint ustgshovkn re-du tor 1 chokes ustanavan, pnvae1kh; giving ps): IU to the pipe: 1 water 2; optimal for the fractional composition of the material and the contact: zlch: 1st route, the main part of the air-- xx coming out of the holes 5 attracts the material that is located at the boundary contour chamber 4, and the other 1 -1 part of the gravel captures the non-surferny layer, hang him. Tver, Al1 frak1sh, but one is tangandially directed by a stream of air of the spirit, under the influence of force of force and resistance. The penetration of loosened a about drops directly into the active suction area. When the on / off work of the nozzle 3 and the aerating device is completed, the coefficient of the ejection is increased, and the preparation time of the mixture is acquired. Such an order of work shortens the time of arrival of the staff to the working area and ensures an even supply of material in the start-up period. By changing the flow rate through air to the hole, you can compensate for a virtually non-inernioural rarefaction zone and thus R wide pre & t affect the flow rate and concentration of the material, giving the desired shape to the system like 9.ieKTpoycTajiOBKa; 4 Placing an aerating device directly in the active area of the BC in combination with the bottom surface of the hull ensures that the power capacity of the installation is improved and the quality of the process of monitoring is improved. Vi a 11 a Feeder d; 1 shimtransport rash learn materials; soder / kashchi.y corpus with a sprout) n-1m in it tra1; a pipeline to the water pipelines. new in the aprisc corps of aapiqjyioiree enclosures for an opel heat pump:: , that, with a singing) 1U from below; - by its energy of Si and providing an ezknerdconnogo un level mode of operation, aerating the device. | Dipolnens in the form of a set right with the nozzle of a mushroom-shaped chamber / I.:; openings in its lower part, and the inner surface of the bottom of the corpus has a surface surface rotation inisi, forming a line of which С1 is equal to a constant core. Sources of foreign Warmers taken in experts at experts, / Author's certificate of USSR Mz 526574, cl. In 65 G 53/40, 1973. 2о. Authors svideta Est.vo USSR M 560509, cl. At 0 G 65/34. 1975.