SU1530234A1 - Pump-powder dispenser - Google Patents

Abstract

The invention relates to equipment for the production of plant protection chemicals using hydroacoustic effects on heterogeneous working environments. The purpose of the invention is to increase the productivity and quality of processing. The pump disperser includes a housing 1 with an inlet 2 and outlet 3 nozzles. Inside the housing 1 there is an annular working chamber 4. The stator includes a partition 5, shells 6, having the shape of half-cylinders in cross section, and guide vanes 7, which form the pressure 8 and the classification 9 chambers. The rotor 10 includes a dividing partition 11 and radial blades 12-14, forming injection cavities 15 and 16. The working medium, successively passing from the inlet 2 through the chamber 15, the chamber 9, the cavity 16, the pressure chamber 8 and the annular working chamber 4, is subjected to intense processing. In chamber 9, the medium is classified according to particle size and is sent for re-treatment. 1 hp f-ly. 7 il.

Description

(L

working chamber 4. The stator includes a dividing partition 5, shells 6, having the shape of half-cylinders in cross section, and guide vanes 7, which form a pressure 8 and classification 9 chambers. The rotor 10 includes a dividing partition 1 1 and radial blades 12-14, forming the pressure cavity 15

and 16. The working medium, the passage from the downstream port 2 through the chamber 15, the chamber 9, the cavity 16, the pressure chamber 8 and the annular working chamber 4, are subjected to intensive processing. In chamber 9, the medium is classified according to particle size and is sent for re-treatment. 1 hp f-ly, 7 ill.

The invention relates to chemical, agricultural and agricultural machinery, in particular, to equipment for the production and use of chemical plant protection products using the method of hydroacoustic effects on heterogeneous working media.

The purpose of the invention is to increase the productivity and quality of processing.

Figure 1 shows schematically a dispersing pump, a longitudinal section; figure 2 - section A-L in figure 1; on fig.Z - section BB in figure 1; Fig, 4 is a section bb In figure 2; Fig.5 section GGD in Fig.2; figure 6 - section dD in figure 2; figure 7 is a view along arrow EE of FIG. 3.

The dispersing pump contains a split housing 1 with an axial inlet 2 and a radial outlet 3 nozzles. Inside the housing 1 there is an annular working chamber 4. The stator is formed by a semi-annular partition wall 5, shells 6, having the shape of semi-cylinders in cross-section, and a direction lu1 (they are fixed trays 7, which form the pressure chamber 8 and the classification 9 chamber. The rotor 10 includes a separating partition 11, having a cross-sectional shape of semi-cylinders, radial blades 12, radial separating blades 13, and supporting radial blades 14, which form the primary 15 and secondary 16 discharge cavities. on the drive shaft 17 movable in the axial direction with the possibility of establishing a minimum axial clearance 18 over its face surfaces. The axial clearance 18 is adjusted in the range of 0.05-0.1 mm with the help of an adjusting pressure nut 19. In details

0

five

45

,, Q

50

55

In particular, in the blades 7 and in the dividing partition 5, the overflow channels 20 connect the secondary pressure cavity 16 of the rotor and the pressure chamber 8 of the stator with the annular working chamber 4. The classification chamber 9 of the stator is connected by the output channels 21 to the entrance to the primary 15 and secondary 16 injection cavity of the rotor. The guide trays 7 are equipped with semi-cylindrical recesses 22 and are located working ends 23 and 24 at the level of the ends 25 of the partition 5 and the ends 26 of the shells 6. The ends 27 of the rear panel: the 5 of the 11 and radial blades 12, 13 and 14 are located on the same level with the ends 28 of the rotor 10 ,

The disperser pump is equipped with a cup spring 29 for pushing the rotor and stator working members towards each other and keeping the axial clearance 18 minimal. Recesses 22 can be made flush with the inner surfaces of the semi-cylindrical shells 6 or have bulges 30 protruding inside the chambers 8. to improve the quality of the finished product from the point of view of its homogeneity and fineness of dispersion.

The dividing wall 5, the shells 6 and the guide vanes 7 form a stator. Together with their ends 23-26, they form the working surfaces of the stator. The shells together with the radial blades 12-14 and the ends 27 and 28 form the working surfaces of the rotor.

The dispersant pump works as follows.

The rotor 10 is driven by rotation from the natural shaft 17. The working medium enters the inlet 2 and.

Do

and stator

is injected to the outlet nozzle 3 by radial blades 12-14 of the rotating rotor, while the processed medium passes through the cavities of the apparatus: the inlet nozzle 2, the primary pressure cavity 15 of the rotor, the stator classification chamber 9, the secondary pressure cavity of the rotor 16, the pressure chamber 8 of the stator The downstream channel 20, the annular working chamber 4 and the outlet 3. When the rotor 10 rotates, its injection cavities 15 periodically overlap at the surface exit (the stator vanes 7 and open when This creates pulsatory pressure disturbances in the flow, leading to an increase in jet energy, rapid loss of stability and, as a consequence, to a pulsation and cavitation flow of the rotor from the discharge cavities of the rotor into the classification chamber 9 the stator. Due to the acquisition of 25 dispersible bodies in the gap

rotor o, 1 mm.

The technical and economic efficiency of the invention lies in the fact that the product homogeneity increases the pressure of the working medium and the productivity of the apparatus, and also provides for dispersing fibrous and nitrous materials without driving the rotor and stator through sections.

 Techno-economic efficiency is achieved due to the fact that the working environment undergoes various types of processing in the pump disperser, which intensifies the process: hydraulic and hydromechanical abrasion when particles pass through the system 2, 15, 9, 16, 8, 20, 4, 3J multiple dispersion of large particles due to their classification according to the scheme 2, 15, 9, 15, ..., 9,16, 8; mechanical; crush and shear when

18 between the working bodies of the rotor and the stator, impact destruction in the interaction of the working environment with the working bodies of the rotor and stator; By kinvitacin kinetic energy in the rotor of the incoming of the injection cavities 15, the flow is twisted by the internal surfaces of the partition wall 5, the section is classified - flow destruction, into two flows: peripheral and central. Peripheral flow contains large particles of dispersible bodies. It is thrown through the output channels 21 in the input pattern.

18 between the stator working bodies, impact destruction of the working medium by the rotor and stator bodies

from the discharge strap of the stator chamber 9; Pulsation vibration effects of cavitation conditions and gozatrats classification

All this provides in product genius: 95-99. dispersion of 5–10 μm, n 1.0 1Sha, high production of pump disperser 50-60, high power consumption, reliable operability of environments without driving of workers.

side 2, ejecting from it the working medium at the entrance to the rotor, into the cavity 15. The central stream contains the classified fines. It enters the discharge cavities 16, receives a pressure pulse from the rotating rotor and is ejected from it onto the inner walls of the chamber 8. Walls chambers 8 twist the flow, which is again classified: large peripheral particles fly out of chamber 8 into the discharge cavity 16 of the rotor, receive a shock pulse from it, disperse and re-inject into chamber 8, and the fine fraction is ready The piston is taken from the level of the collar 30 and is led through the channels 20 into the annular chamber 4, and from there into the outlet nozzle 3. The spring 29 and the back pressure on the reverse side of the rotor 10 (from the annular chamber 4) provide a constant preload of the rotor 10 to the stator, supporting the end face clearance 18 inter 5330234

Do

and stator

Yu Yu (s, 20 25 falling dispersible bodies in the gap

rotor o, 1 mm.

The technical and economic efficiency of the invention consists in increasing the homogeneity of the product, the pressure of the working medium and the productivity of the apparatus, as well as the dispersion of fibrous and filamentary materials without driving the rotor and stator through sections.

 Techno-economic efficiency is achieved due to the fact that the working medium undergoes various types of processing in the dispenser pump, which intensifies the process: hydraulic and hydromechanical abrasion when particles pass through the system 2, 15, 9, 16, 8, 20, 4, 3J multiple dispersion of large particles due to their classification according to the scheme 2, 15, 9, 15, ..., 9,16, 8; mechanical; crush and shear when

o (s 20 25 falling dispersible bodies into the gap

to destroy the flow

35

40

45

50

55

18 between the working bodies of the rotor and the stator, impact destruction in the interaction of the working environment with the working bodies of the rotor and stator; klavitatsiey from the injection cavities 15 in the chamber 9 of the stator; pulsating and vibration effects, which improve the conditions of cavitation and reduce the enrichment of particle classification.

All this ensures high homogeneity of the products: 95-99% of particles. Disperse size is 5-10 microns, head 0.5–1.0 1Sa, high performance of a dispersing pump 50-60 m / h with low power consumption 25-30 kW, reliable performance on various environments without blocking the working bodies.

Claims (2)

1. A dispersant pump comprising a housing with an annular working chamber, a stator and a rotor, the latter of which is made with radial vanes and a dividing partition, forming an injection cavity communicating with the annular working chamber with the formation of a circulation contour, characterized in increase in productivity and quality of processing; the casing is equipped with guide vanes. and the stator and the separator partition of the rotor are made in the form of shells, having in the cross-section the shape of semi-cylinders facing each other with end surfaces, while the stator sheath is fixed on the housing guide blades and forms with the separator rotor ge additional circulation circuit. 2. The dispersant pump according to claim 1, wherein the rotor is equipped with a means for pressing it against the stator and is mounted with the possibility of axial movement relative to the latter. ) 3 27 ten 28 in-in P I Yu FIG. five Jul s Fi.V B-e Fie.7