SU1671851A1 - Sectional spraying system for a ploughing machine - Google Patents

Abstract

The invention relates to the mining industry, in particular, to sectional irrigation systems of plow installations. The goal is to increase the efficiency of dust suppression while reducing the water consumption for dust suppression. The system contains a main pipeline 2 connected to the pumping station 1, the main 3 sections of nozzles / SF / and additional SF 4. The latter are located between the main SF 3. In this case, every two adjacent SF 3 are communicated with the corresponding SF 4 by means of check valves (OK) 5 and 6. The input of each OK 5 and 6 is communicated with the corresponding main SF 3. The output of each OK 5 and 6 is communicated by the SF 4. Hydraulic connection of the SF 3 to the main pipeline 2 is carried out through irrigation switches 7. Each of them has locking elements 8 and 9. To control the latter, electrohydraulic distributors 10 with an electromagnetic actuator 11 are placed in the housing of each switch 7. Each irrigation switch 7 can be made in the form of two blocks, one of the shut-off elements located in one block, and the other is in another block. When the plow 16 is moved, it passes the CF 3, then the CF 4 and approaches the next SF 3. The command device 13 receives a signal from the sensor 15 to determine the position of the plow 16. The command device disconnects from the main pipeline 2 the electrohydraulic distributor 10 passed by the SF board 16 and sends a signal to switching on the electrohydraulic distributor 10 following along the course of the movement of the Federation Council 3. 5 Cp f-ly. 7 il.

Description

The invention relates to mining industry, in particular, to sectional irrigation systems of plow units, and can be used to suppress dust during coal extraction with plow units.

The purpose of the invention is to increase the efficiency of dust suppression while simultaneously reducing water consumption for dust suppression.

Fig. 1 shows an electro-hydraulic diagram of a sectional irrigation system of a plow; Fig. 2 is the same with an irrigation switch with hydraulic logic element I; fig. 3 - the same, with an irrigation switch with a hydraulic distributor; FIG. 4 shows an irrigation switch with hydraulic logic element I; in FIG. 5, the same, when executed from two blocks; Fig. 6 shows an irrigation switch with a hydraulic distributor; 7 - then OK, when running from two blocks.

The sectional irrigation system of the plow installation contains the main pipeline 2 connected to the pump station 1. The main 3 and additional 4 nozzle sections are located along the bottom of the plow face. The additional nozzle sections 4 are located between the main sections of the 3 nozzles, with each two adjacent main sections of the three nozzles communicating with the corresponding additional section of the four nozzles via check valves 5 and 6, the inlet of each of which is connected to the corresponding main section of the three nozzles, the output of each check Valves 5 and 6 communicate with the Additional Section 4 Injectors. The main nozzle sections 3 have the ability to hydraulically connect with the main pipeline 2 through irrigation switches 7 each of which contains two hydraulically controlled locking elements о and 9. Electrohydraulic distributors 10c with electromagnetic actuator 11 for controlling the locking elements 8 and 9 of irrigation switches 7 can be placed directly in the housing of each irrigation switch 7, or may be placed in a separate control unit 12. The control unit 13 is electrically connected, for example, by cable 14 to the tchikom 15 for determining the position of the plow 16 which is movably mounted on the conveyor 17, and, for example, the wires 18 - with each electromagnetic actuator 11 elektrogidroraspredelitel 10

When the irrigation switches 7 are provided with two electrohydraulic distributors 10 (Fig. 1), the control cavities of each locking element 8 and 9 are able to be connected by means of hydraulic lines 19 through Electrohydrodistributors 10 to the main pipeline 2 and to the atmosphere or to the drain pipe 20.

When placing electrohydraulic distributors 10 in a separate control unit 12 (FIGS. 2 and 3), each switch 7

Irrigation is connected to electrohydrodistributors 10 by two hydrolines, one of which is a common hydroline 21, and the second is an individual hydroline 22. In this embodiment of the system

5 section irrigation, the number of electro-distributors 10 per unit is more than the number of irrigation switches 7.

Each irrigation switch 7 (FIG. 2) can be equipped with an AND 23 hydraulic logic element with two inputs 24 and 25 and an output 26, and one locking element 8 of each irrigation switch 7 is provided with a prohibition cavity 27. In this case, the input 24 of the hydraulic logic element I 23 communicates with the recess cavity 27 of the locking element 8 and with the total 21 hydroline, and its input 25 communicates with the control cavity of the locking element 8 and with the corresponding individual 22 hydraulic line. The output 26 of the hydraulic logic element AND 23 of each irrigation switch 7 communicates with the control cavity of the second locking element 9. Each irrigation switch 7 (Fig. 3) is provided

5 by a valve 28 with a control cavity 29 which communicates with a common hydroline 21. Each individual hydroline 22 has the ability to connect, via the valve 28, a respective irrigation switch 7 to one of the control cavities of its locking elements 8 and 9.

Each irrigation switch 7 (FIG. 4) may be made as one

5 of block 30, in which the locking elements 8 and 9 are mounted for movement, each of which is in contact with the pistons 31 spring-loaded by means of springs 32. The input channel 33 connects the cavity 34 to accommodate the locking elements 8 and 9 with the main pipeline 2 Each output channel 35 is in communication with the corresponding main section of the 3 nozzles Hydraulic logic element AND 23

5 can be made in the form of a piston with a pusher 36, preloaded with a spring 37, and a check valve, which can be made in the form of a ball 38 with a spring 39. The irrigation switch 7 (FIG. 5) can be made in the form of two blocks 40 and 41.

In this case, the locking element 8 and the hydraulic logic element And 23 are located in block 40, and the locking element 9 - in block 41.

Each irrigation switch 7 (Fig. 6) can be made in the form of a single unit 42, in which the locking elements 8 and 9, which are spring loaded with springs 43, are mounted for movement. Each locking element 8 and 9 forms with the block 42 a supply cavity 44 and a withdrawal cavity 45 which communicates with the corresponding main section of the 3 nozzles. The valve 28 is also placed in block 42 and can be made in the form of a ball 46, two seats 47 and 48, a piston with a pusher 49 and a pusher 50.

The irrigation switch 7 (Fig. 7) can be made in the form of two blocks 51 and 52. At the same time, the locking element 8 and the hydraulic distributor 28 are placed in the block 51, and the locking element 9 - in the block 52.

The system of sectional irrigation plow installation works as follows.

When the plow 16 passes along the bottom, the sensor 15 to determine the position of the plow 16 sends a signal to the commander 13, which by wire 18 gives commands to turn on the corresponding irrigation switch 7. When a signal is applied to the electromagnetic actuator 11 of the corresponding electrohydraulic distributor 10, its distribution element moves and connects the main pipeline 2 to the control cavity of the corresponding locking element 8 or 9, which, under the pressure of water in the control cavity, opens and connects the main pipeline 2 to the corresponding main section 3 nozzles. At the same time, water through check valves 5 and 6 enters the additional sections of 4 nozzles adjacent to the above-mentioned main section of the 3 nozzles. The bottom is irrigated through the nozzles of the main 3 and an additional 4 sections. When moving the plow 16, it passes through the main section of 3 nozzles, then an additional section of 4 nozzles and approaches the next main section of 3 nozzles. At the same time, the command device 13 receives a signal from the sensor 15 to determine the position of the plow 16. By this signal, the command device 13 disconnects from the main pipeline 2 the electro-hydraulic distributor 10 passed by the plow 16 of the main section 3 of the nozzles and sends a signal to turn on the electro-hydraulic distributor 10 next The main section of the 3 nozzles. When water is supplied to the next main section of 3 nozzles, it flows through check valves 5 and b to additional sections of 4 nozzles, including that additional section 4 nozzles, from the irrigation zone of which the plow 16 has come out. At the same time, dust suppression occurs and the area that remained after the passage of the plow 16.

10 The principle of operation of the plow irrigation system when placing the electrohydraulic distributors 10 in a separate control unit 12 (FIGS. 2 and 3) is similar to that described. At the same time to enable one

5 of the main sections of the 3 nozzles must be supplied with water under pressure to the corresponding individual hydroline 22, and to turn on the adjacent main section 3 of the nozzles it is necessary to apply water under pressure simultaneously through the common hydroline 21 and the corresponding individual hydroline 22.

Performing the irrigation switches 7 in the form of two separate blocks and connecting the outputs of each of the blocks to the beginning of each main section of the nozzles allows reducing the loss of the working fluid, improving the spraying of water and increasing the efficiency of dust suppression.

0

Claims (6)

1. The sectional irrigation system of the plow installation, including the connected 5 with a pumping station; a main pipeline; sections of nozzles for placement along the backside of the lava, which have the possibility of hydraulic connection with the main pipeline 0 through irrigation switches with two hydraulically controlled shut-off elements, a control unit that is electrically connected to the sensor to determine the position of the plow and with a corresponding electro-hydraulic distributor to control the irrigation switch, and the hydraulic distributors to control the irrigation switch to hydrate the hydraulic distributors to control the irrigation switch to extract the hydraulic distributors to control the irrigation switch. so that, in order to increase the efficiency of dust suppression while reducing the water consumption for dust suppression, it is equipped with Injector nozzle sections, which are located between the main nozzle sections, and every two adjacent main nozzle sections are communicated with the corresponding additional nozzle section through non-return valves, with the inlet of each non-return valve communicating with the corresponding main nozzle section, and the output of each check valve is communicated with an additional nozzle section. 2. The system according to claim 1, wherein each irrigation switch is connected to the electrohydraulic distributors by two hydrolines, one hydrolini being made common to all the irrigation breakers, and the other is individual to each irrigation switch. 3. The system according to claims 1 and 2, characterized in that each irrigation switch has a hydraulic logic element I with two inputs and an output, and one of the locking elements of each irrigation switch is made with a barring cavity, while one of the hydraulic inputs the element AND each irrigation switch with the prohibition cavity of its locking element and with the common hydroline, and the second input of the hydraulic logic element AND each irrigation switch is connected with the control cavity of the same locking element and with tvetstvuyuschey individual hydraulic line, the hydraulic output of the AND gate of each switch reflux communicates with cavity control its second locking element. 4.Sistema PP.1 and 2, about tl and h and y and a shch - so. that each irrigation switch has a control valve with a control cavity, each being individually the hydroline is connected to the hydraulic distributor of the respective irrigation switch and has the ability to alternately connect to one of the control cavities of its locking elements, and the control cavity of the hydraulic distributor of each irrigation switch communicates with the common hydraulic line. 5. The system according to claims 1-3, characterized in that each switch is irrigated made in the form of two blocks, with one of the locking elements with control and prohibition cavities and hydraulic logic element AND located in one block of the irrigation switch, and the other locking the element is in the second block of the irrigation switch. 6. The system of PP. 1.2 and 4, characterized in that each irrigation switch is made in the form of two blocks, with This is one of the locking elements and the control valve are located in one unit of the irrigation switch, and the other locking element is located in the second unit of the irrigation switch. FIG. 2 G T 22 1L tt 22 W 19 FIG. 6 f  T / JT GT four/ FIG. five and 7 I 7 FIG. 7 3 Mr Ft i-a & A / f I "7 j " "five "