SU1523496A1 - Device for inputting loose material into horizontal pneumatic ttransport pipeline - Google Patents

Abstract

This invention relates to the pneumatic transportation of bulk materials and can be used in the construction, metallurgical, chemical and other industries. The purpose of the invention is to increase the reliability of work. A device for inserting bulk materials into a horizontal pneumatic conveying pipeline includes a loading nozzle 1 with a flap 2 mounted on a hinge 3 and having a lever 4 connected to a spring 5 and a spool 6 of a pneumatic distribution valve 7 having air channels 8 and cavities 9 and 10 connected to the atmosphere . In the horizontal pneumatic conveying pipe 11, on the side opposite to the material unloading, a control valve is installed coaxially with it, the movement mechanism of which is made in the form of pneumatic cylinder 13 with cavities 14 and 15, spring 16, lever 17, protrusion 18, and piston of pneumatic cylinder 13 is rigidly connected to valve 12. Pneumatic cylinder 13 is connected by air lines 19 and 20 to a pneumatic distribution valve 7, which is connected by air pipe 21 to a horizontal pneumatic transport pipe 11. Compressed air is supplied to a horizontal pneumatic transport The pipeline 11 is carried out from line 22 through an air valve 23. 1 sludge.

Description

t

(21) 4403613 / 31-1Т

(22) 03/09/88

(46) 11/23/89. Bup. No. 43

(71) Kursk Polytechnic Institute

(72) N.S. Kobepev, V.A. Kudr vtsev, I.I., Sokol, TN Panin, C, A. Vanin, V.Ya. Kaliyevsky and A.I. Zinin

(53) 621.867.82 (088.8)

(56) Authorskde certificate of the USSR No. 1081099, cl. B 65 G 53/40, 1983.

(54) DEVICE FOR INPUT OF BULK MATERIALS INTO HORIZONTAL PNESHO. TRANSPORT PIPELINE

(57) The invention relates to the pneumatic transport of loose

materials and can be used in construction, metallurgical, chemical and other industries of the industry. The purpose of the invention is to increase the reliability of work. A device for inserting loose materials into the horizontal pneumatic conveying pipeline includes a loaded pipe 1 with a valve 2 fixed on the wiper 3 and having a lever 4 connected to the spring 5 and the valve 6 of the pneumatic distribution valve 7 having air channels 8 and cavities 9 and 10 combined with the atmosphere. On the horizon of the linear pneumatic transport pipeline ft from the side

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The material is cut, the control valve coaxially with it is installed, the movement mechanism of which is made in the form of a pneumatic cylinder 13 with cavities 14 and 15, a spring 16, a lever 17, a protrusion 18, and the piston of a pneumatic cylinder 13 is rigidly connected to a valve 12. Pneumatic cylinder 13 is connected by air ducts 19 and 20 s

The invention relates to the pneumatic transportation of bulk materials and can be used in the construction, metallurgical, chemical and other industries.

The aim of the invention is to increase the reliability of operation.

The drawing shows the device for entering the bulk materials into a horizontal pneumatic conveying pipeline, a general view,

The device includes a loading nozzle 1 with a flap 2 fixed on the hinge 3 and having a lever 4 connected to a spring 5 and a spool 6 of a pneumatic distribution valve 7 having air channels 8 and cavities 9 and 10 connected to a sphere. In the pneumotransport pipeline 11, on the side opposite to transportation, there is installed a regulating valve 12 with it, the displacement mechanism of which is designed in the form of a pneumatic cylinder 13 with cavities 14 and 15, a spring 16, a lever 17 and a protrusion 18. air pipes 19 and 20 with a pneumatic distribution valve 7, which air pipe 21 is connected with a horizontal pneumatic conveying pipe 11. The compressed air supply to the horizontal pneumatic conveying pipe 11 is carried out from the main 22 The crane 23.

The device works as follows.

In the absence of the need to supply bulk material from the inlet pipe 1, the valve 2 through the hinge 3 by means of the lever 4 and the spring 5 keeps the valve 6 of the pneumatic valve 7 in the lowest position. The arrangement of the air ducts of the aotropist 6 provides

pneumatic distribution valve 7, which is connected by air pipe 21 to a horizontal pneumatic transport pipe 11. Compressed air is supplied to a horizontal pneumatic transport pipe 11 from line 22 via an air valve 23. 1 sludge.

compressed air from line 22 through air valve 23 through air duct 21, channel 8, air duct 20 into cavity 15 of pneumatic cylinder 13. As a result of increasing pressure of compressed air in cavity 15 (cavity 14 through air duct 19 is connected to atmosphere with cavity 9 of valve 6) pneumatic cylinder 13 moves and occupies the leftmost position, which causes the valve 12 to shut off the compressed air supply to the horizontal pneumotransport pipe 11. Reliability of closing is ensured by the impact of compressed air to to the valve 12 and the piston 13 pnevmoschlindra.

In order to ensure that the maximum amount of loose material, such as cement, comes out of the inlet 1, the flap 2 pivots on the hinge 3 with the lever 4 and, stretching the spring 5, lifts the spool 6 of the pneumatic distribution valve 7 to the extreme upper position. In this case, it supplies compressed air from pipe 11 through air duct 21, channel 8, air duct 19 to cavity 14 of pneumatic cylinder 13. As a result, the pressure of compressed air in cavity 14 increases (cavity 15 ithout air pipe 20 connected with the atmosphere by the cavity 10 of the spool 6), and the action of the spring 16, the piston 13 moves pnevmoi shindra and takes the rightmost position, which leads to the complete opening of the valve 12, is performed guide maximum flow of compressed air into the horizontal conduit 11 ny pnevyotransportny

When a partial flow of material from the loading nozzle 1 is partially supplied, the flap 2 on the hinge 3 with the lever 4 turns at a certain angle

and, stretching the spring 5 to the corresponding height of this angle, raises the valve 6 of the pneumatic distribution valve 7. As a result, the air ducts 19 and 20 are closed and the pressure in the cavities 14 and 15 of the pneumatic cylinder 13 is aligned, and under the action of the spring 16 its piston several moves propro (the amount of movement is determined by the spring stiffness, i.e. is determined by the design features of the proposed device and, accordingly, the operating parameters of the feed of the flowing material)

The valve 12 partially opens by supplying compressed air to the horizontal pneumatic conveying pipe 11 for transporting a predetermined mass of bulk material.

An increase in the supply of bulk material from the inlet pipe 1 leads to a change in the angle of rotation of the valve 2 on the hinge 3 and, accordingly, to raising the spool 6 of the pneumatic distribution valve 7 to a greater height. As a result, the air duct 21 partially connects through the duct 8 to the air duct 19, and the air duct 20 partially connects through the cavity 10 of the spool 6 of the pneumatic distribution valve 7 with the atmosphere. Compressed air from line 22 through the open valve 23 through air duct 21, channel 8, air duct 19 enters cavity 14 of pneumatic cylinder 13. The combined effect of increasing pressure of compressed air in cavity 14 and spring t6 leads to further movement of the pneumatic cylinder 13 piston. As a result, the valve 12 moves to the right, providing a greater supply of compressed air to the horizon.

It is so that, in order to increase the reliability of work, it is equipped with a damper installed in the inlet nozzle, which is connected by a pneumatic distributor valve and pneumatic cylinder, which stem is connected to the control valve, and each cavity is connected to its spool. with pneumatic valve

The main pneumatic transport pipeline 11 for transportation increases, with the possibility of alternately communicating mass of bulk material. with pipeline and atmosphere.

The process of reducing the compressed air supply by the valve 12 while reducing the flow of bulk material into the pneumatic transport pipe 11 is carried out in reverse order.

If it is necessary to install the valve 12 into a constant open position, it with the piston of the pneumatic cylinder 13 is manually moved to the extreme right position by means of the lever 17, while the bolt 17 is fixed by turning on the protrusion 18 of the pneumatic cylinder 13.

In addition to improving operation reliability by eliminating the possibility of blockages in the pipeline, the present invention reduces the energy consumption caused by the production of compressed air by controlling its flow depending on the varying mass of the transported bulk material.

Claims (1)

Invention Formula A device for insertion of bulk materials into a horizontal pneumatic conveyor - a flow pipeline containing a loading nozzle and located in the latter from the side opposite to the direction of transportation of the mother, with the possibility of axial movement of adjustments valve, It is so that, in order to increase the reliability of operation, it is equipped with a damper installed in the inlet nozzle, a pneumatic distributor valve and a pneumatic cylinder, the stem of which is connected to the control valve, and each cavity connected to pneumatic valve , with the possibility of alternate communication with the pipeline and atmosphere.