CN214344972U

CN214344972U - Combined equipment for separating slag from water and recycling waste water of mining drilling flushing fluid

Info

Publication number: CN214344972U
Application number: CN202120148957.6U
Authority: CN
Inventors: 龙威; 陈果; 史春宝; 辛德忠; 王清峰; 罗华; 万军; 李和祥; 周涛; 谢杰; 杜渔舟
Original assignee: CCTEG Chongqing Research Institute Co Ltd
Current assignee: CCTEG Chongqing Research Institute Co Ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-10-08
Anticipated expiration: 2031-01-19

Abstract

The utility model belongs to the technical field of colliery is drilling operation in the pit, a mining drilling flushing fluid slag-water separation and waste water cyclic utilization's combined equipment is disclosed, including the walking operation platform and integrated there being one-level solid-liquid separation equipment on the walking operation platform, the baffle-box, the second grade pump, second grade solid-liquid separation equipment, clean water tank and retrieval and utilization pump, be equipped with the inlet on the one-level solid-liquid separation equipment, arrange the cinder notch and the leakage fluid dram that links to each other with the baffle-box, the baffle-box passes through the second grade pump and still links to each other with second grade solid-liquid separation equipment, be equipped with the product mouth that links to each other with the clean water tank on the second grade solid-liquid separation equipment, and even return to baffle-box or one-level solid-liquid separation equipment's drain, be equipped with the moisturizing mouth on the clean water tank and the delivery port A who links to each other with the retrieval and utilization pump. The utility model discloses an it is integrated to unite to equip has two-stage solid-liquid separation processing procedure, can realize boring the recovery of sediment and the cyclic utilization of waste liquid, plays promotion and impetus to environmental protection index control, the production running cost control of working face in the pit.

Description

Combined equipment for separating slag from water and recycling waste water of mining drilling flushing fluid

Technical Field

The utility model belongs to the technical field of colliery is drilling operation in the pit, concretely relates to mining drilling flushing fluid slag-water separation and waste water cyclic utilization's combination is equipped.

Background

A large amount of underground coal mine underground tunnel drilling equipment is adopted for drilling construction and is mainly applied to gas extraction control, geological communication detection, mine water damage prevention and control and the like. Clear water is mainly used as a flushing medium in the drilling process, and drill cuttings generated in drilling construction are a mixture of drilling slag and water.

The underground nearly horizontal directional drilling of the coal mine adopts a hole bottom motor as hole bottom power, water is pressurized through a slurry pump, high-pressure water is conveyed to the hole bottom through a drill rod, a hole bottom motor rotor is driven to rotate, and a drill bit is driven to rotate to crush rock. Compared with the ordinary rotary drilling, the directional drilling needs larger amount of clear water, for example, a phi 73mm and 5/6 head-hole bottom motor, the water consumption of a single motor reaches 15m³H; along with the continuous development of the directional drilling technology and equipment under the coal mine in recent years, the directional drilling technology and equipment are developed to the direction of high power, large aperture and ultra-deep hole, and the water consumption for directional drilling construction is increased, and the water consumption of the currently used hole bottom motor with the diameter of 127mm is up to 40-50m³H is used as the reference value. The hydraulic impact drilling is similar to the directional drilling principle, and a slurry pump is adopted to pressurize clean water and then convey high-pressure water to the bottom of a hole through a drill rod, and the water consumption is equivalent to that of the directional drilling with the same hole diameter.

The high-pressure plunger pump, the hole bottom motor and the hydraulic hammer have strict requirements on the solid content in water, a drilling flushing fluid contains a large amount of coal slag or rock debris, if the drilling flushing fluid is directly pumped into the hole bottom motor or the hydraulic hammer through the high-pressure plunger pump without treatment, the drilling is very easy to cause the blocking of the inside of the drilling fluid, and the service life of the drilling fluid is greatly reduced. The research shows that: such as the circulation of flushing liquid, the hard particles contained therein must be limited because they accelerate the wear of bearings and motors and reduce the service life of the drilling tool. The sand content in the flushing liquid is controlled below 1% when the grain size is less than 74 microns (the fact proves that if the sand content reaches 5%, the service life of the hole bottom motor is reduced by 50%).

In recent years, the underground coal mine drilling construction technology and equipment are rapidly developed, but few researches are made on the recycling of drilling flushing liquid, most of mines adopt simple natural precipitation treatment at present to realize solid-liquid extensive separation of drill cuttings, and the separated liquid phase has high content of tiny particles and cannot be recycled; or one-stage or multi-stage vibration screening process is adopted to remove sand and mud from the water containing the coal slag, but a sewage bin needs to be built underground, then the sewage bin is conveyed to the ground by a pump for treatment and then is discharged or is recycled after secondary separation by using a centrifugal machine, a cyclone and the like, the process is complex, a sedimentation tank with larger volume is usually required to be arranged, the equipment has larger overall size, high power and heavy weight, and is not suitable for application in narrow environment of a roadway and mobile operation in a coal mine roadway, so that larger economic pressure and environmental protection pressure are brought to the coal mine.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a mining drilling flushing fluid slag-water separation and waste water cyclic utilization's combination is equipped, aims at solving current equipment and takes up an area of big, the transportation difficulty, and operating condition is abominable, vibration noise, energy consumption all great problem.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a mining drilling flushing fluid slag-water separation and waste water cyclic utilization's combination is equipped, including the walking operation platform, the integration has one-level solid-liquid separation equipment on the walking operation platform, the buffer tank, the second grade pump, second grade solid-liquid separation equipment, clean water tank and retrieval and utilization pump, be equipped with the inlet that is used for receiving the drilling flush fluid on the one-level solid-liquid separation equipment, a drain for separating the row's of boring sediment cinder and being used for separating the waste liquid and the leakage fluid dram that links to each other with the buffer tank, the buffer tank still links to each other with second grade solid-liquid separation equipment through the second grade pump, be equipped with on the second grade solid-liquid separation equipment and be used for separating the filtrating and the product mouth that links to each other with the clean water tank, and be used for separating the drain back to buffer tank or one-level solid-liquid separation equipment to the dense liquid parallel connection, be equipped with on the clean water tank and be used for to the moisturizing mouth of clean water tank and be used for the delivery port A that links to each other with the retrieval and utilization pump.

Further, the first-stage solid-liquid separation device adopts a multi-stage elliptical stack solid-liquid separator.

Further, the secondary solid-liquid separation device adopts ceramic membrane equipment.

Further, be equipped with the baffle in the baffle-box, the baffle is used for separating into first cavity and second cavity with the baffle-box, and both communicate in the top of baffle.

Further, the buffer tank is provided with a liquid level sensor A and a sludge discharge pump in a first cavity connected with the first-stage solid-liquid separation device, and is provided with a liquid level sensor B in a second cavity connected with the second-stage solid-liquid separation device.

Further, a check valve, a flowmeter, a pressure sensor A and a turbidimeter A are arranged on a pipeline between the secondary pump and the secondary solid-liquid separation device.

Further, a concentrated solution pipeline of the second-stage solid-liquid separation device is provided with a pressure sensor C, and a filtrate pipeline is provided with a pressure sensor B and a turbidimeter B.

Further, a water outlet B is also arranged on the clean water tank and is connected back to the secondary solid-liquid separation device through a backwashing pump.

Further, a liquid level sensor C is also arranged on the clear water tank.

Further, the traveling form of the traveling type workbench is a tire type, a crawler type or a wheel rail type.

The utility model has the advantages that:

1. the combined equipment provided by the utility model adopts a two-stage solid-liquid separation treatment process, the first-stage coarse separation is used for rapidly separating drill cuttings with larger particle sizes, and can also be independently applied to other underground slag-water separation occasions, and the special ceramic membrane element is designed into the second-stage fine separation, so that the ultra-low turbidity water production is realized; and the method is a simple treatment process without pooling, effectively ensures high integration of the combined equipment, and can be conveniently and rapidly displaced in an underground roadway. Meanwhile, the continuous automatic operation of the special ceramic membrane equipment is realized by adopting an automatic control technology, the equipment can be automatically operated under the unattended condition, and the construction strength is greatly reduced.

2. The utility model provides a joint equipment is applicable to the colliery and drills down and washes quick processing on the spot of waste liquid to can realize boring the recovery of sediment and the cyclic utilization of waste liquid to environmental protection index control, the production running cost control of working face in the pit play promotion and impetus, can also produce good social and economic benefits, have popularization and application and worth.

3. The utility model provides a joint equipment can concentrate on the operation platform truck, convenient transportation, and the energy consumption is low, and full automatic operation compares in prior art, this simple structure, and the good reliability, convenient operation, it is with low costs, be applicable to colliery borehole operation.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 is a flow system diagram of the combined equipment of the present invention.

Reference numerals: 1 is a walking type operation platform, 2 is a primary solid-liquid separation device, 3 is a buffer tank, 4 is a secondary pump, 5 is a secondary solid-liquid separation device, 6 is a clear water tank, 7 is a recycling pump, 8 is a backwashing pump, and 9 is a sludge discharge pump; 21 is a liquid inlet, 22 is a slag discharge port, and 23 is a liquid discharge port; 31 is a clapboard, 32 is a liquid level sensor A, and 33 is a liquid level sensor B; 41 a check valve, 42 a flowmeter, 43 a pressure sensor A and 44 a turbidimeter A; the water producing port 51 and the

sewage draining ports

52 and 53 are pressure sensors C, 54 are pressure sensors B and 55 are turbidimeters B; 61 is a water replenishing port, 62 is a water outlet A, 63 is a water outlet B, and 64 is a liquid level sensor C.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The method aims at solving the problems that the water consumption for underground drilling, punching and hydraulic slotting of the coal mine is large and drilling flushing liquid cannot be recycled on site at present; by analyzing the particle size distribution rule of the drill cuttings and combining an automatic control technology and a sensor technology, a set of combined equipment for solid-liquid separation and cyclic utilization of the mining drilling washing liquid is developed, two-stage solid-liquid separation of the drilling washing liquid can be realized, the final produced water turbidity is lower than 1NTU, and the drilling cyclic utilization requirement is met.

As shown in fig. 1, the combined equipment for separating slag and water from a mining drilling flushing fluid and recycling wastewater in the embodiment includes a traveling type operation platform 1, and a traveling mechanism adopted by the traveling type operation platform 1 may be a tire type structure, or a crawler type or wheel rail type structure, so that transportation is facilitated; and walking operation platform 1 is last then to integrate one-level solid-liquid separation equipment 2, baffle-box 3, second grade pump 4, second grade solid-liquid separation equipment 5, clear water tank 6 and retrieval and utilization pump 7, wherein: the first-stage solid-liquid separation device 2 adopts a multi-stage elliptical-stack solid-liquid separator, has low energy consumption, small volume and no obvious vibration noise, can intercept solid particles with the size of more than 0.5mm, has no free-state moisture in the intercepted solid drilling slag, and is provided with a liquid inlet 21 for receiving drilling flushing liquid, a slag discharge port 22 for separating the drilling slag and a liquid discharge port 23 for separating waste liquid and connected with the buffer tank 3; the buffer tank 3 is connected with the secondary solid-liquid separation device 5 through the secondary pump 4, a partition plate 31 is arranged in the buffer tank 3, the partition plate 31 is used for dividing the buffer tank 3 into two cavities, and the two cavities are communicated above the partition plate 31, namely, waste liquid flowing into the buffer tank 3 from a liquid outlet 23 of the primary solid-liquid separation device 2 firstly passes through the first cavity, then rapidly precipitates and overflows a supernatant into the second cavity; the secondary solid-liquid separation device 5 adopts ceramic membrane equipment, technical parameters such as ceramic membrane operation flux and the like can be set according to water quality parameters, a pneumatic/electric valve (not marked) is connected with a water inlet connected with the secondary pump 4 to facilitate the connection and disconnection of a water channel, a water producing port 51 used for separating filtrate and connected with the clean water tank 6 and a sewage outlet 52 used for separating concentrated solution and returning the concentrated solution to the first cavity of the buffer tank 3 are arranged on the secondary solid-liquid separation device, and the sewage outlet 52 in different embodiments can be connected with the liquid inlet 21 of the primary solid-liquid separation device 2; the clean water tank 6 is provided with a water replenishing port 61 for replenishing water to the clean water tank 6 and a water outlet A62 for connecting with the recycling pump 7, the water replenishing port 61 is also provided with a pneumatic/electric valve (not marked) and is connected with an underground water replenishing pipeline, when the liquid level of the clean water tank is low, the valve is opened for replenishing water, when the liquid level is high, the valve is closed, and the recycling pump 7 is used for conveying the clean water in the clean water tank to the coal mine drilling for use as a drilling flushing fluid, so that the flushing fluid for drilling can be recycled.

When the device works, drilling flushing fluid wastewater connected to a drilling machine and working together with a drill rod of the drilling machine enters a first-stage solid-liquid separation device for primary coarse separation, drilling slag is independently discharged and transported to a specified position, filtrate enters a buffer tank, is precipitated in a first cavity in the buffer tank and then flows to a second cavity through the upper part of a partition plate; then, the turbid liquid is conveyed into a secondary solid-liquid separation device by a secondary pump for secondary fine separation, the turbid liquid returns to a buffer tank or a primary solid-liquid separation device through a pipeline for circular filtration, and clear liquid enters a clear water tank and is pumped by a recycling pump to be supplied to a drilling machine so as to form the cyclic utilization of drilling flushing liquid; meanwhile, water quantity can be supplemented in the clear water tank through a water supplementing port so as to ensure continuous supply to the drilling machine.

In the embodiment, a liquid level sensor A32 is arranged on the first cavity, and a manual valve (not marked) and a dredge pump 9 are arranged, wherein the liquid level sensor A is used for collecting the liquid level of the first cavity, the dredge pump 9 is used for periodically removing drilling slag precipitated in the first cavity, and the manual valve is opened when the dredge pump 9 runs and closed when the dredge pump 9 is overhauled and replaced; meanwhile, the second cavity of the buffer tank 3 is provided with a liquid level sensor B33 which operates in combination with the secondary pump 4, namely the liquid level sensor B is used for collecting the liquid level of the second cavity and is linked with the secondary pump 4, when the liquid level is low, the secondary pump 4 is stopped, and when the liquid level is high, the secondary pump 4 is started.

In this embodiment, a check valve 41, a flow meter 42, a pressure sensor a43 and a turbidity meter a44 are disposed on the pipeline between the secondary pump 4 and the secondary solid-liquid separator 5 for monitoring the flow rate, pressure and turbidity, respectively, and a pneumatic/electric valve (not labeled) is disposed on the pipeline for controlling the water intake of the secondary solid-liquid separator.

In this embodiment, the concentrate pipe of the secondary solid-liquid separation device 5 is provided with a pressure sensor C53, and is provided with a parallel structure of a pneumatic/electric valve and a manual valve, so as to realize automatic control, and the filtrate pipe is provided with a pressure sensor B54 and a turbidimeter B55, and is provided with a pneumatic/electric valve, so as to realize automatic control.

The clean water tank 6 in this embodiment is further provided with a water outlet B63, the water outlet B63 is connected back to the secondary solid-liquid separation device 5 through a backwash pump 8, and a pneumatic/electric valve (not shown) is further arranged on a backwash pipeline of the secondary solid-liquid separation device to realize automatic control and flush the secondary solid-liquid separation device.

The clear water tank 6 in the embodiment is also provided with a liquid level sensor C64 to acquire the liquid level in the clear water tank, so that the control of water supplement from the water supplement port is convenient, and the liquid level sensor C of the reuse pump and the clear water tank realizes the high-low liquid level linkage control.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A combined device for separating slag from water and recycling waste water of a mining drilling flushing fluid comprises a walking type operation platform (1) and is characterized in that a first-stage solid-liquid separation device (2), a buffer tank (3), a second-stage pump (4), a second-stage solid-liquid separation device (5), a clear water tank (6) and a recycling pump (7) are integrated on the walking type operation platform, a liquid inlet (21) for receiving drilling flushing fluid, a slag discharge port (22) for separating drilling slag and a liquid discharge port (23) for separating waste liquid and connecting with the buffer tank are arranged on the first-stage solid-liquid separation device, the buffer tank is also connected with the second-stage solid-liquid separation device through the second-stage pump, a water production port (51) for separating filtrate and connecting with the clear water tank and a drain outlet (52) for separating concentrated liquid and connecting back to the buffer tank or the first-stage solid-liquid separation device, the clean water tank is provided with a water replenishing port (61) for replenishing water to the clean water tank and a water outlet A (62) for connecting with the recycling pump.

2. The mining combined equipment for separating the drilling flushing fluid from the slag and recycling the wastewater as claimed in claim 1, wherein the primary solid-liquid separation device adopts a multi-stage elliptical-stack solid-liquid separator.

3. The mining combined equipment for separating the drilling flushing fluid from the slag and recycling the wastewater according to claim 1, wherein the secondary solid-liquid separation device adopts ceramic membrane equipment.

4. The mining combined equipment for separating the drilling flushing fluid from the slag water and recycling the waste water according to claim 1, characterized in that a partition plate (31) is arranged in the buffer tank and used for dividing the buffer tank into a first cavity and a second cavity, and the first cavity and the second cavity are communicated above the partition plate.

5. The mining combined equipment for separating the drilling flushing fluid from the slag and recycling the wastewater as claimed in claim 4, characterized in that the buffer tank is provided with a liquid level sensor A (32) and a dredge pump (9) in a first cavity connected with the primary solid-liquid separation device, and is provided with a liquid level sensor B (33) in a second cavity connected with the secondary solid-liquid separation device.

6. The mining combined equipment for separating the drilling flushing fluid from the slag water and recycling the wastewater as claimed in claim 1, characterized in that a check valve (41), a flowmeter (42), a pressure sensor A (43) and a turbidimeter A (44) are arranged on a pipeline between the secondary pump and the secondary solid-liquid separation device.

7. The mining combined equipment for separating the drilling flushing fluid from the slag water and recycling the wastewater as claimed in claim 1, wherein a concentrate pipeline of the secondary solid-liquid separation device is provided with a pressure sensor C (53), and a filtrate pipeline thereof is provided with a pressure sensor B (54) and a turbidimeter B (55).

8. The mining combined equipment for separating the slag and the water of the drilling flushing fluid and recycling the waste water according to claim 1, wherein a water outlet B (63) is further formed in the clear water tank, and the water outlet B is connected back to the secondary solid-liquid separation device through a backwashing pump (8).

9. The mining combined equipment for separating the drilling flushing fluid from the slag and recycling the waste water according to claim 1, characterized in that a liquid level sensor C (64) is further arranged on the clean water tank.

10. The mining combined equipment for separating the slag and the water of the drilling flushing fluid and recycling the waste water as claimed in claim 1, wherein the walking type operation platform is in a tire type, a crawler type or a wheel rail type.