SU1645499A1 - Sprinkling device of mine cutter-loader - Google Patents

Description

The invention relates to the mining industry and is intended to combat dust and frictional sparking during mining operations.

The purpose of the invention is to increase the efficiency of the device by ensuring the supply of a stream of liquid to the cutting trace.

The drawing schematically shows the proposed device, a longitudinal section.

The device for irrigation of a mining combine includes a housing 1 with an internal cavity 2, a channel 3 for supplying liquid, a nozzle and a device for cleaning the liquid. The device for cleaning the liquid is made of a spring 4 with a regulator 5 of the gaps between its turns. The nozzle is made of a needle b with an internal flow channel fixed in the head of the housing 1 with a seal 7. The spring 4 is located at one end on the seal 7 and the other at the regulator 5. The input end of the needle b is located in the inner cavity 2, and on the outlet the end of the needle b is made oblique slice 8. The inner cavity 2 of the housing 1 is made stepwise from chambers with diameters increasing in the direction from the head of the housing 1 to its tail. Channel 3 is made tangentially and connected to a chamber 9 of maximum diameter.

The value 1 of the gap between the coils of the spring 4 must always be less than the diameter d of the needle channel 6. In those cases when it is not necessary to obtain a curved stream of liquid, the cut 8 is cut off and the needle 6 is turned 180 °, i.e. is established by a different end, the surface cleanliness of which is not impaired.

The device operates as follows.

I

The fluid is supplied from the wiring system through the tangential channel 3 to the cavity 2 of the housing 1, passes the gaps between the turns of the spring 4 and enters the flow channel of the needle b. Due to the available cut 8 of the needle 6 and the difference of the channel resistances, a curved stream of liquid is formed on the cut 8, which is fed to the cutting trace. The seal 7 fixes the needle 6 in a predetermined position both along the length and along the orientation of the slice 8. The pressure of the liquid on the seal allows you to further compress it and securely fix the needle 6,

The gap between the turns of the spring 4 is changed by turning the knob 5. The fine fractions of the suspensions in the liquid (the size is less than the gap 1 and naturally less than the diameter d of the needle channel 6) pass between the turns of the spring 4 and through the channel of the needle 6, while large ones are delayed and remain in the cavity 2.

The vibration of the cantilever part of the needle 6 from the side of the regulator 5 promotes the movement of fluid with mechanical suspensions along the channel of the needle 6.

Claims (2)

Claim 1, A device for irrigating a mining machine, comprising a housing with an internal cavity, a channel for supplying liquid and a nozzle, characterized in that, in order to increase the efficiency of the device by providing a stream of liquid to the cutting trace, it is equipped with a device for cleaning the liquid, made of a spring with a gap adjuster between its coils, and the nozzle is made of a needle with an internal flow channel fixed to the head of the housing by means of a sealant, while the spring is located at one end on the seal thread, and the other end on the regulator of the gaps between its turns, and the input end of the needle is placed in the inner cavity of the housing, and on the outlet end of the needle there is a slanting cut. - 2. The device according to p. 1, characterized in that the internal cavity of the housing is made stepwise from chambers with diameters increasing in the direction from the head of the housing to its tail, while the channel for supplying fluid is made tangentially and connected to the chamber of maximum diameter.