CN111749730B - Thickener wind-water linkage slurry making system and damaged nozzle positioning method based on system - Google Patents
Thickener wind-water linkage slurry making system and damaged nozzle positioning method based on system Download PDFInfo
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- CN111749730B CN111749730B CN202010643410.3A CN202010643410A CN111749730B CN 111749730 B CN111749730 B CN 111749730B CN 202010643410 A CN202010643410 A CN 202010643410A CN 111749730 B CN111749730 B CN 111749730B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 193
- 239000002002 slurry Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002562 thickening agent Substances 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims description 36
- 230000006835 compression Effects 0.000 claims description 22
- 238000007906 compression Methods 0.000 claims description 22
- 239000004570 mortar (masonry) Substances 0.000 claims description 22
- 229920001971 elastomer Polymers 0.000 claims description 21
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 10
- 239000004576 sand Substances 0.000 description 10
- 238000007599 discharging Methods 0.000 description 7
- 239000007921 spray Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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Abstract
The invention discloses a thickener wind-water linkage slurry making system and a damaged nozzle positioning method based on the system.A cylinder wall of a conical cylinder section is provided with three groups of annular pipes at different height positions, and each annular pipe comprises an annular water pipe and an annular air pipe; the annular pipe is correspondingly connected with the wind-water linkage slurry making nozzle; the water inlet end of the annular water pipe is connected with a water supply main pipe through a water supply branch pipe; the air inlet end of the annular air pipe is connected with an air supply main pipe through an air supply branch pipe, and the tail end of the annular water pipe is discharged into a main water pipe through a valve; and a detection branch pipe is arranged between the water supply branch pipe and the air supply branch pipe in the same group. The tailing at the bottom of the silo is more effectively activated, and the stability of the slurry making concentration and flow is improved; the slurry making nozzle capable of being quickly and accurately positioned and damaged improves the maintenance efficiency.
Description
Technical Field
The invention relates to the technical field of tailing thickening and dewatering processes in the mine filling and mining industry, in particular to a thickener wind-water linkage slurry making system which is mainly used for activating, making slurry and discharging sand from tailing in a mine filling high-depth cone thickener; the invention also relates to a damaged nozzle positioning method based on the system.
Background
The tailing filling technology is a novel mine filling technology developed in the last 80 years of the last century, and is increasingly widely applied to mines. The technology is characterized in that tailings are used as filling aggregates, and are conveyed to an underground stope dead zone in a high-concentration state through activation and stirring. The process can fill the graded coarse tailings, the graded fine tailings and even all the tailings as filling materials into the underground, does not need to build a tailing pond, and lays a foundation for no waste. Because the tailings are precipitated into saturated sand in the filling silo, if the tailings are filled successfully, concentration adjustment is needed to fluidize the tailings, namely the tailings are subjected to weight loss and slurrying through an activating medium so as to enable the tailings to flow out of the silo smoothly, and the fluidization is completed by high-pressure water and compressed air sprayed by a filling spray pipe component.
The nozzle base of the existing mine sand filling bin is generally arranged on a pipeline in the filling bin, the maintenance is completed in the filling bin, the tailing in the filling bin is cleaned up before the maintenance, and after the nozzle and the pipeline are exposed completely, a maintenance worker can enter the filling bin through an access hole to maintain. Because the ventilation in the feed bin is not smooth, and do not have the maintenance platform, have potential safety hazards such as maintainer oxygen deficiency, landing. The maintenance time is long, the auxiliary working time is high, and the labor intensity of workers is high.
Some mines adopt external nozzles, but the same problem of inconvenient maintenance exists with the internal nozzles, specifically speaking, a large number of nozzles with different heights are arranged in the same sand silo, and the performance and the use state of each nozzle are different. When the nozzle is used, the backflow prevention effect can be avoided due to the fact that part of the nozzle is excessively abraded, the nozzle component is damaged or the protective sleeve falls off, tailings flow backwards, and mortar enters the nozzle and the mortar making pipe. This is the current practice for this problem: the method is characterized in that the tailings in the slurry making pipe are cleaned before each slurry making, and the method has the following defects: firstly, the operation procedure and the labor amount are increased, and the working efficiency is reduced; secondly, the conditions of nozzle failure and the like caused by the damage of the components in the nozzle can not be solved, so that the phenomena of difficulty in sand discharge of tailings, large concentration fluctuation, unstable flow and the like caused by the reduction of injection points occur, and the activation quality of mortar is influenced. If the return spring in the nozzle can not be reset due to failure or fatigue, the return spring is difficult to find from the outer surface of the nozzle, the nozzles need to be disassembled one by one for maintenance, and the workload is very huge.
Disclosure of Invention
The invention aims to solve the technical problems that a thickener wind-water linkage slurry making system and a damaged nozzle positioning method based on the system are provided, so that tailing at the bottom of a bin can be activated more effectively, hardening is avoided, and the stability of slurry making concentration and flow is improved; secondly, solve mine tailing and fill slurrying system slurrying nozzle easy wearing and tearing inefficacy and can not in time discover and change a difficult problem, the slurrying nozzle that can damage by quick, accurate location improves maintenance efficiency.
The technical scheme of the invention is as follows:
the utility model provides a thick liquid system is made in linkage of thickener geomantic omen, is including filling the feed bin, fill the feed bin include the drum section and connect in the conical cylinder section of drum section lower extreme, its characterized in that: three groups of annular pipes are arranged at different height positions on the wall of the conical barrel section, and each group of annular pipes comprises an annular water pipe and an annular air pipe; each group of annular pipes is correspondingly connected with a plurality of wind-water linkage slurry making nozzles; the wind-water linkage slurry making nozzle comprises a nozzle shell, the wind-water linkage slurry making nozzle is arranged on the cylinder wall of the conical cylinder section through a bin wall fixing part, the nozzle shell penetrates through the cylinder wall of the conical cylinder section, one end of the nozzle shell is positioned on the inner side of the cylinder wall of the conical cylinder section, and the other end of the nozzle shell is positioned on the outer side of the cylinder wall of the conical cylinder section; one end of the nozzle shell is closed, the other end of the nozzle shell is opened, a first compression spring, a pneumatic piston, a high-pressure air pipe fixing seat, a second compression spring, a hydrodynamic piston and a fastening bolt pipe are sequentially arranged in the nozzle shell from the closed end to the open end, and the fastening bolt pipe is arranged at the open end of the nozzle shell; the outer end of the fastening bolt pipe is connected with a nozzle connecting piece, and the nozzle connecting piece is connected with a bin wall fixing piece; the outer side of the nozzle connecting piece is connected with a high-pressure rubber pipe connecting thread, the high-pressure rubber pipe connecting thread is connected with a high-pressure rubber pipe, a high-pressure slurry making air pipe is sleeved in the high-pressure rubber pipe, an annular cavity between the high-pressure slurry making air pipe and the high-pressure rubber pipe is used as a high-pressure water channel, the channel is communicated with a high-pressure water cavity, and the high-pressure water cavity is a cavity where the second compression spring is; the high-pressure slurry making air pipe is a rigid pipe, passes through a second compression spring and a hydrodynamic piston, and is connected with the high-pressure air pipe fixing seat at the inner end and communicated with a high-pressure air cavity, wherein the high-pressure air cavity is a cavity where the first compression spring is located; the nozzle shell is provided with a high-pressure air spray hole communicated with the high-pressure air cavity and a high-pressure water spray hole communicated with the high-pressure water cavity; the annular air pipes are respectively connected with the high-pressure slurry making air pipes of the plurality of wind-water linkage slurry making nozzles and used for sending high-pressure air into the high-pressure air cavity, and the annular water pipes are respectively connected with the high-pressure water cavities of the plurality of wind-water linkage slurry making nozzles and used for sending high-pressure water into the high-pressure water cavity; the high-pressure rubber pipe is also provided with a manual ball valve for controlling the on-off of water flow and air flow in the high-pressure rubber pipe; the system also comprises a water supply main pipe and an air supply main pipe; the water inlet end of the annular water pipe is connected with a water supply branch pipe, an electric regulating valve and a check valve are respectively arranged on the water supply branch pipe, and the water inlet end of each water supply branch pipe is connected with the water supply main pipe; an electromagnetic flowmeter, a first electric ball valve, a first pressure transmitter and a first check valve are sequentially arranged on the water supply main pipe along the water flow direction; the air inlet end of the annular air pipe is connected with an air supply branch pipe, the air supply branch pipe is respectively provided with an electric regulating valve and a check valve, the tail end of the annular air pipe is closed, the air inlet end of each air supply branch pipe is connected with the air supply main pipe, and the air supply main pipe is sequentially provided with a second electric ball valve, a second pressure transmitter and a second check valve along the airflow direction; the system also comprises a discharge water main, wherein the tail end of the annular water pipe is connected with the discharge water main through a valve; the system is still including connecting the detection branch pipe of same group water supply branch pipe and air feed branch pipe, installs electric ball valve on the detection branch pipe, and the one end of detecting the branch pipe is connected on water supply branch pipe and is located between electric control valve and the check valve, and the other end is connected on the air feed branch pipe and is located between electric control valve and the check valve.
Preferably, the high-pressure air pipe fixing seat is fixed in the nozzle shell, the root of the first compression spring is connected to the inner side of the closed end of the nozzle shell, and the root of the second compression spring is connected to the high-pressure air pipe fixing seat.
The damaged nozzle positioning method based on the system is characterized by comprising the following steps of:
the first step is as follows: opening valves between the three annular water pipes and the discharge main pipe, and then sequentially opening a first electric ball valve, electric regulating valves on the three water supply branch pipes and electric ball valves on the three detection branch pipes, if the discharge main pipe is found to discharge clear water, indicating that all nozzles are normal, ending the detection, if the discharge main pipe is found to discharge mortar, entering a second step;
the second step is that: closing all valves opened in the first step, opening a first electric ball valve, an electric regulating valve on a first water supply branch pipe, an electric ball valve on a detection branch pipe connected with the first water supply branch pipe and a valve between the tail end of an annular water pipe connected with the first water supply branch pipe and a discharge main water pipe, observing whether the discharge main water pipe is clear water or mortar, and judging whether damaged nozzles exist in a first group of nozzles corresponding to the first water supply branch pipe if the mortar is discharged; entering a third step;
the third step: closing all the valves opened in the second step, opening the first electric ball valve, the electric regulating valve on the second water supply branch pipe, the electric ball valve on the detection branch pipe connected with the water supply branch pipe and the valve between the tail end of the annular water pipe connected with the water supply branch pipe and the discharge main water pipe, and observing whether the discharge main water pipe discharges clear water or mortar; if the mortar is discharged, judging that damaged nozzles exist in a second group of nozzles corresponding to the second water supply branch pipe; if the water main is discharged with clear water in the second step and the third step, judging that damaged nozzles exist in a third group of nozzles corresponding to a third water supply branch pipe;
the fourth step: in a nozzle group with damaged nozzles, opening a certain manual ball valve, closing the rest manual ball valves, and opening a first electric ball valve, an electric regulating valve on a water supply branch pipe corresponding to the nozzle group, an electric ball valve on a detection branch pipe connected with the water supply branch pipe, and a valve between the tail end of an annular water pipe connected with the water supply branch pipe and a discharge main water pipe; and when one manual ball valve is opened and the other manual ball valves are closed, the mortar discharged from the water main is discharged, and the damage of a nozzle corresponding to the manual ball valve is explained.
The invention has the positive effects that: the system can meet the requirements of high-depth cone thickeners for full tailings, graded coarse tailings, overflow fine tailings and tailings with different grades for slurry making and sand discharging according to the filling requirements of underground mines, can effectively activate the tailings at the bottom of the silo, and avoids hardening. The high-concentration saturated tail mortar is stably and uniformly discharged under the pressure of a deposited compaction layer after slurry making, the sand discharge flow of the thickener is large, the filling efficiency is high, and no material is accumulated at the bottom. The positioning method can be used for conveniently and accurately detecting the damage condition of the nozzle and realizing quick and efficient disassembly, replacement or maintenance outside the bin. In addition, the invention is additionally provided with the detection branch pipe for connecting the water supply branch pipe and the air supply branch pipe, the detection of the spring resetting performance in the high-pressure air cavity and the spring resetting performance in the high-pressure water cavity is finished by one-time operation, and the detection efficiency is improved by adopting a simple structure and a simple method.
Drawings
FIG. 1 is a schematic diagram of a system according to an embodiment of the present invention.
FIG. 2 is a schematic layout of a wind-water linked slurry making nozzle in an embodiment of the system of the present invention.
Fig. 3 is a schematic diagram of a pipe network structure and a working principle of the system according to the embodiment of the invention.
FIG. 4 is a schematic structural diagram of a wind-water linkage slurry making nozzle according to an embodiment of the system.
FIG. 5 is a schematic view of the connection relationship between the annular pipe and the wind-water linked slurry making nozzle in the embodiment of the system.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
First, an embodiment of the system of the present invention.
Referring to fig. 1, 2 and 3, the embodiment of the system of the present invention includes a filling silo 30, wherein the filling silo 30 includes a cylindrical section and a conical section connected to the lower end of the cylindrical section, and three sets of annular pipes are installed at different height positions on the wall of the conical section, and each set of annular pipes includes an annular water pipe 26 and an annular air pipe 31. Each annular water pipe 26 and each annular air pipe 31 are connected with a plurality of air-water linkage slurry making nozzles 29 which are arranged on the wall of the conical barrel section.
As shown in fig. 4, the wind and water linked slurry making nozzle 29 comprises a nozzle shell 29-5, one end of the nozzle shell 29-5 is closed, the other end of the nozzle shell 29-5 is open, a first compression spring 29-8, a pneumatic piston 29-9, a high-pressure air pipe fixing seat 29-10, a second compression spring 29-11, a water-driven piston 29-12 and a fastening bolt pipe 29-13 are sequentially arranged in the nozzle shell 29-5 from the closed end to the open end, and the fastening bolt pipe 29-13 is installed at the open end of the nozzle shell 29-5. The high-pressure air pipe fixing seat 29-10 is fixed in the nozzle shell 29-5, the root of the first compression spring 29-8 is connected to the inner side of the closed end of the nozzle shell 29-5, and the root of the second compression spring 29-11 is connected to the high-pressure air pipe fixing seat 29-10. The nozzle shell 29-5 is provided with a high pressure air jet hole 29-6 communicated with the high pressure air cavity where the first compression spring is positioned and a high pressure water jet hole 29-7 communicated with the high pressure water cavity where the second compression spring is positioned. The outer end of the fastening bolt pipe 29-13 is connected with a nozzle connecting piece 29-2, the nozzle connecting piece 29-2 is connected with a bin wall fixing piece 29-4, the nozzle connecting piece 29-2 and the bin wall fixing piece 29-4 are provided with coaxial threaded holes 29-3, the outer side of the nozzle connecting piece 29-2 is connected with a high-pressure rubber pipe connecting thread 29-1, the high-pressure rubber pipe connecting thread 29-1 is connected with a high-pressure rubber pipe 28, a high-pressure slurry making air pipe 29-14 is sleeved in the high-pressure rubber pipe 28, and an annular cavity between the high-pressure slurry making air pipe 29-14 and the high-pressure rubber pipe 28 is used as a high. Wherein the high-pressure slurry-making air pipe 29-14 is a rigid pipe, passes through the second compression spring 29-11 and the water-driven piston 29-12, and has the inner end connected to the high-pressure air pipe fixing seat 29-10 and communicated with the high-pressure air cavity.
As shown in fig. 3 and 5, the annular air pipe 31 is respectively connected to the high-pressure slurry making air pipes 29 to 14 of the air-water linkage slurry making nozzles for sending high-pressure air into the high-pressure air cavity, and the annular water pipe 26 is respectively connected to the high-pressure water cavity of the air-water linkage slurry making nozzles for sending high-pressure water into the high-pressure water cavity.
The high-pressure rubber pipe 28 is also provided with a manual ball valve 27 for controlling the on-off of water flow and air flow in the high-pressure rubber pipe 28.
Referring to fig. 3, an embodiment of the system of the present invention further includes a water supply manifold a and an air supply manifold B.
The end of intaking of annular water pipe 26 is connected with water supply branch pipe C, installs electrical control valve and check valve on the water supply branch pipe C respectively, in this embodiment, installs first electrical control valve 5 and third check valve 8 on a set of water supply branch pipe C in the top of figure 4 respectively, installs second electrical control valve 6 and fourth check valve 9 on a set of water supply branch pipe C in the middle part respectively, installs third electrical control valve 7 and fifth check valve 10 on a set of water supply branch pipe C in the below respectively. The water inlet end of each water supply branch pipe C is connected with the water supply main pipe A. The water supply main pipe A is sequentially provided with an electromagnetic flowmeter 1, a first electric ball valve 2, a first pressure transmitter 3 and a first check valve 4 along the water flow direction. The air inlet end of the annular air pipe 31 is connected with an air supply branch pipe D, an electric regulating valve and a check valve are respectively installed on the air supply branch pipe D, and the tail end of the annular air pipe 31 is sealed. In this embodiment, a fourth electric control valve 20 and a sixth check valve 23 are respectively installed on a group of annular air ducts above fig. 4, a fifth electric control valve 21 and a seventh check valve 24 are respectively installed on a group of annular air ducts in the middle, and a sixth electric control valve 22 and an eighth check valve 25 are respectively installed on a group of annular air ducts below. The air inlet end of each air supply branch pipe D is connected with the air supply main pipe B. And a second electric ball valve 17, a second pressure transmitter 18 and a second check valve 19 are sequentially arranged on the air supply main pipe B along the air flow direction.
An embodiment of the system according to the invention further comprises a discharge water main E to which the end of the ring-shaped water pipe 26 is connected by means of a valve. In this embodiment, the ends of the upper group of annular water pipes in fig. 4 are connected to the discharge water main E through the sixth electric ball valve 14, the ends of the middle group of annular water pipes are connected to the discharge water main E through the seventh electric ball valve 15, and the ends of the lower group of annular water pipes are connected to the discharge water main E through the eighth electric ball valve 16.
The embodiment of the system also comprises a detection branch pipe which is connected with the water supply branch pipe C and the air supply branch pipe D, one end of the detection branch pipe is connected with the water supply branch pipe C and is positioned between the electric regulating valve and the check valve on the water supply branch pipe C, and the other end of the detection branch pipe is connected with the air supply branch pipe D and is positioned between the electric regulating valve and the check valve on the air supply branch pipe D. In this embodiment, a detection branch pipe with a third electric ball valve 11 is connected between a group of water supply branch pipes C and air supply branch pipes D above fig. 4, a detection branch pipe with a fourth electric ball valve 12 is connected between a group of water receiving branch pipes C and air supply branch pipes D in the middle, and a detection branch pipe with a fifth electric ball valve 13 is connected between a group of water receiving branch pipes C and air supply branch pipes D below.
Second, the method embodiment of the present invention
(I): an embodiment of positioning a lower one of the upper, middle and lower nozzles to damage the nozzles.
(1) Firstly opening a sixth electric ball valve 14, a seventh electric ball valve 15 and an eighth electric ball valve 16, then opening a first electric ball valve 2, a first electric regulating valve 5, a second electric regulating valve 6, a third electric regulating valve 7, a third electric ball valve 11, a fourth electric ball valve 12 and a fifth electric ball valve 13 in sequence, and finding out mortar discharged from a main water discharge pipe E.
(2) And (3) closing all corresponding valves, namely all opened valves in the step (1), opening the first electric ball valve 2, the first electric regulating valve 5, the third electric ball valve 11 and the sixth electric ball valve 14, discharging clean water from the main water pipe E, indicating that an upper-layer nozzle is normal, and closing the first electric regulating valve 5, the third electric ball valve 11 and the sixth electric ball valve 14.
(3) And opening the second electric regulating valve 6, the fourth electric ball valve 12 and the seventh electric ball valve 15, discharging clear water from the water main pipe E, indicating that the middle-layer nozzle is normal, and closing the second electric regulating valve 6, the fourth electric ball valve 12 and the seventh electric ball valve 15.
(4) And opening the third electric regulating valve 7, the fifth electric ball valve 13 and the eighth electric ball valve 16, discharging mortar from a main water pipe E, indicating that a lower-layer nozzle is damaged, and closing the third electric regulating valve 7 and the fifth electric ball valve 13.
(5) And the lower-layer part of manual ball valves are opened, the rest of manual ball valves are closed, the third electric regulating valve 7 and the fifth electric ball valve 13 are opened, mortar is discharged from the water main pipe E when one of the manual ball valves is opened, the rest of manual ball valves are closed, and the condition that a nozzle corresponding to the manual ball valve is damaged is indicated. The damaged nozzle is replaced.
(II) slurry making embodiment.
(1) Before sand discharging, the first electric ball valve 2, the first electric regulating valve 5, the second electric regulating valve 6 and the third electric regulating valve 7 are opened firstly, and high-pressure water enters the interior of the thickener through a pipeline and a nozzle to be activated and made into slurry for 10 min. (2) And in the sand discharging process, the first electric ball valve 2, the electric ball valve 17, the fourth electric regulating valve 20, the fifth electric regulating valve 21 and the sixth electric regulating valve 22 are opened, high-pressure air is sprayed into the thickener through a nozzle, and slurry making is carried out by combining with high-pressure water, and the first electric regulating valve 5, the second electric regulating valve 6, the third electric regulating valve 7, the fourth electric regulating valve 20, the fifth electric regulating valve 21 and the sixth electric regulating valve 22 are controlled according to the quality concentration condition of discharged underflow mortar, so that the high-pressure air and the high-pressure water are balanced to act on the mortar in the bin.
(3) When stopping putting sand, close first electric ball valve 2, first electrical control valve 5, second electrical control valve 6, third electrical control valve 7, second electrical ball valve 17, fourth electrical control valve 20, fifth electrical control valve 21 and sixth electrical control valve 22, form the negative pressure in the nozzle internal cavity, compression spring recovers, the piston return, in the external mortar of automatic cutout got into the nozzle cavity, the nozzle hole stopped water spray, jet-propelled, the inside thick liquid that stops of sand silo.
Claims (3)
1. The utility model provides a thick liquid system is made in linkage of thickener geomantic omen, is including filling feed bin (30), fill feed bin (30) include the drum section and connect in the awl section of drum section lower extreme, its characterized in that: three groups of annular pipes are arranged at different height positions on the wall of the conical barrel section, and each group of annular pipes comprises an annular water pipe (26) and an annular air pipe (31); each group of annular pipes is correspondingly connected with a plurality of wind-water linkage slurry making nozzles (29); the wind-water linkage slurry making nozzle (29) comprises a nozzle shell (29-5), the wind-water linkage slurry making nozzle (29) is installed on the cylinder wall of the conical cylinder section through a bin wall fixing piece (29-4), the nozzle shell (29-5) penetrates through the cylinder wall of the conical cylinder section, one end of the nozzle shell (29-5) is located on the inner side of the cylinder wall of the conical cylinder section, and the other end of the nozzle shell is located on the outer side of the cylinder wall of the conical cylinder section; one end of the nozzle shell (29-5) is closed, the other end of the nozzle shell is opened, a first compression spring (29-8), a pneumatic piston (29-9), a high-pressure air pipe fixing seat (29-10), a second compression spring (29-11), a hydrodynamic piston (29-12) and a fastening bolt pipe (29-13) are sequentially arranged in the nozzle shell (29-5) from the closed end to the open end, and the fastening bolt pipe (29-13) is arranged at the open end of the nozzle shell (29-5); the outer end of the fastening bolt pipe (29-13) is connected with a nozzle connecting piece (29-2), and the nozzle connecting piece (29-2) is connected with a bin wall fixing piece (29-4); the outer side of the nozzle connecting piece (29-2) is connected with a high-pressure rubber pipe connecting thread (29-1), the high-pressure rubber pipe connecting thread (29-1) is connected with a high-pressure rubber pipe (28), a high-pressure slurry making air pipe (29-14) is sleeved in the high-pressure rubber pipe (28), an annular cavity between the high-pressure slurry making air pipe (29-14) and the high-pressure rubber pipe (28) is used as a high-pressure water channel, the channel is communicated with a high-pressure water cavity, and the high-pressure water cavity is a cavity where a second compression spring is; the high-pressure slurry making air pipe (29-14) is a rigid pipe, passes through the second compression spring (29-11) and the water-driven piston (29-12), and is connected with the high-pressure air pipe fixing seat (29-10) at the inner end and communicated with a high-pressure air cavity, wherein the high-pressure air cavity is a cavity where the first compression spring is located; the nozzle shell (29-5) is provided with a high-pressure air jet hole (29-6) communicated with the high-pressure air cavity and a high-pressure water jet hole (29-7) communicated with the high-pressure water cavity; the annular air pipe (31) is respectively connected with the high-pressure slurry making air pipes (29-14) of the plurality of air-water linkage slurry making nozzles and used for sending high-pressure air into the high-pressure air cavity, and the annular water pipe (26) is respectively connected with the high-pressure water cavities of the plurality of air-water linkage slurry making nozzles and used for sending high-pressure water into the high-pressure water cavities; a manual ball valve (27) is also arranged on the high-pressure rubber pipe (28) and is used for controlling the on-off of water flow and air flow in the high-pressure rubber pipe (28); the system also comprises a water supply main pipe (A) and an air supply main pipe (B); the water inlet end of the annular water pipe (26) is connected with a water supply branch pipe (C), an electric regulating valve and a check valve are respectively arranged on the water supply branch pipe (C), and the water inlet end of each water supply branch pipe (C) is connected with the water supply main pipe (A); an electromagnetic flowmeter (1), a first electric ball valve (2), a first pressure transmitter (3) and a first check valve (4) are sequentially arranged on the water supply main pipe (A) along the water flow direction; the air inlet end of the annular air pipe (31) is connected with an air supply branch pipe (D), an electric regulating valve and a check valve are respectively installed on the air supply branch pipes (D), the tail end of the annular air pipe (31) is closed, the air inlet end of each air supply branch pipe (D) is connected with the air supply main pipe (B), and a second electric ball valve (17), a second pressure transmitter (18) and a second check valve (19) are sequentially installed on the air supply main pipe (B) along the air flow direction; the system also comprises a discharge water main (E), and the tail end of the annular water pipe (26) is connected with the discharge water main (E) through a valve; the system is still including connecting the detection branch pipe of same group water supply branch pipe (C) and air feed branch pipe (D), installs electric ball valve on the detection branch pipe, and the one end of detecting the branch pipe is connected on water supply branch pipe (C) and is located between electric control valve and the check valve, and the other end is connected on air feed branch pipe (D) and is located between electric control valve and the check valve.
2. The thickener wind-water linkage slurry making system according to claim 1, wherein: the high-pressure air pipe fixing seat (29-10) is fixed in the nozzle shell (29-5), the root of the first compression spring (29-8) is connected to the inner side of the closed end of the nozzle shell (29-5), and the root of the second compression spring (29-11) is connected to the high-pressure air pipe fixing seat (29-10).
3. A damaged nozzle positioning method based on the system of claim 1 or 2, characterized by the following steps:
the first step is as follows: opening valves between the three annular water pipes (26) and the discharge water main (E), and then sequentially opening a first electric ball valve (2), electric adjusting valves on the three water supply branch pipes (C) and electric ball valves on the three detection branch pipes, if clear water is found out from the discharge water main (E), indicating that all nozzles are normal, ending the detection, if mortar is found out from the discharge water main (E), entering a second step;
the second step is that: closing all valves opened in the first step, opening a first electric ball valve (2), an electric regulating valve on a first water supply branch pipe (C), an electric ball valve on a detection branch pipe connected with the first water supply branch pipe (C), and a valve between the tail end of an annular water pipe (26) connected with the first water supply branch pipe (C) and a discharge water main (E), observing whether clear water or mortar is discharged from the discharge water main (E), and judging whether damaged nozzles exist in a first group of nozzles corresponding to the first water supply branch pipe (C) if the mortar is discharged; entering a third step;
the third step: closing all the valves opened in the second step, opening the electric regulating valves on the first electric ball valve (2) and the second water supply branch pipe (C), the electric ball valve on the detection branch pipe connected with the water supply branch pipe (C), and the valve between the tail end of the annular water pipe (26) connected with the water supply branch pipe (C) and the discharge water main (E), and observing whether the discharge water main (E) discharges clear water or mortar; if the mortar is discharged, judging that damaged nozzles exist in a second group of nozzles corresponding to the second water supply branch pipe (C); if clear water is discharged from the second step and the third step of the discharge water main pipe (E), judging that damaged nozzles exist in a third group of nozzles corresponding to a third water supply branch pipe (C);
the fourth step: in a nozzle group with damaged nozzles, opening a certain manual ball valve, closing the rest manual ball valves, and opening a first electric ball valve (2), an electric regulating valve on a water supply branch pipe (C) corresponding to the nozzle group, an electric ball valve on a detection branch pipe connected with the water supply branch pipe (C), and a valve between the tail end of an annular water pipe (26) connected with the water supply branch pipe (C) and a discharge main water pipe (E); when one of the manual ball valves is opened and the other manual ball valves are closed, the main water pipe (E) is discharged to produce mortar, and the condition that a nozzle corresponding to the manual ball valve is damaged is indicated.
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| CN202010643410.3A CN111749730B (en) | 2020-07-07 | 2020-07-07 | Thickener wind-water linkage slurry making system and damaged nozzle positioning method based on system |
| PCT/CN2021/102022 WO2022007637A1 (en) | 2020-07-07 | 2021-06-24 | Wind-water linkage pulping system for thickener, and damaged nozzle positioning method based on system |
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| CN113513363B (en) * | 2021-08-25 | 2023-07-25 | 山金重工有限公司 | Fine-grain-level high-concentration tailing filling and thickening device |
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| US6168352B1 (en) * | 1997-01-24 | 2001-01-02 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Natural Resources | Apparatus for producing high density slurry and paste backfills |
| CA2260604C (en) * | 1998-12-31 | 2002-11-12 | Her Majesty In Right Of Canada As Represented By The Minister Of Natural Resources | Apparatus for producing high density slurry and paste backfills |
| CN103963162B (en) * | 2014-05-23 | 2016-06-29 | 山东华联矿业股份有限公司 | Vertical sand warehouse pulp making device |
| CN104696009B (en) * | 2015-03-19 | 2017-01-25 | 华唯金属矿产资源高效循环利用国家工程研究中心有限公司 | Anti-clogging slurry making system of mine filling station and slurry making technique |
| CN208679484U (en) * | 2018-08-22 | 2019-04-02 | 山东黄金矿业股份有限公司 | A kind of dual-purpose mud making spray nozzle in vertical sand warehouse high pressure geomantic omen |
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