CN215759272U

CN215759272U - Continuous desilting system of auxiliary shaft bottom sump

Info

Publication number: CN215759272U
Application number: CN202122073485.5U
Authority: CN
Inventors: 靳启学; 石广学
Original assignee: Inner Mongolia Huangtaolegai Coal Co ltd
Current assignee: Inner Mongolia Huangtaolegai Coal Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-08
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a continuous dredging system for an auxiliary shaft bottom sump, which comprises a dredging sump, wherein the output end of the dredging sump is fixedly connected with a sedimentation system, the sedimentation system is arranged and installed in a main roadway with ventilation conditions, the sedimentation system comprises two groups of sedimentation tanks, and each group of sedimentation tank comprises a primary sedimentation tank and a secondary sedimentation tank, and the continuous dredging system has the advantages that: directly arrange the coal slime water in the auxiliary shaft bottom sump to belt aircraft nose sedimentation tank that concentrates, the coal slime water is the back of deposiing for the first time, the large granule sells the tooth-like desilter back of dredging, get into main coal stream conveyor system, the coal slime water after the secondary sinks is arranged to the new pressure filter that increases of belt aircraft nose through the water pump, the pressure filter concentrates the filter-pressing with the coal slime water after, the coal slime directly gets into main coal stream conveyor system, realize the continuous desilting in sump, the efficiency of the desilting is improved, the manual work of desilting has been saved, trackless rubber-tyred car transportation link has been saved, the cost of transportation is reduced, the emergence of transportation accident has been avoided simultaneously.

Description

Continuous desilting system of auxiliary shaft bottom sump

The technical field is as follows:

the utility model relates to the technical field of dredging, in particular to a continuous dredging system for a sub-well bottom sump.

Background art:

the underground water sump of the coal mine is an important facility for ensuring safe production and preventing mine flood, and the cleaning of the mine and the dehydration of coal slime become key links influencing the normal production of the mine and are one of the most troublesome works of producers.

The existing dredging mode comprises the following steps: (1) manual dredging method: the coal slime deposited in the water sump is loaded into a tank car by a shovel or a small bucket and transported away by workers. (2) Dredging and filling sludge cleaning: the coal slime deposited in the water sump is loaded into the mine car and transported out of the water sump by the modified dredging machine, namely a miniaturized loader. (3) A scraper dredging method: the coal slime is transported to the mine car by a scraper conveyor by special equipment and then is transported away by the mine car. (4) Chain bucket conveying sump cleaning machine: the chain is driven by the chain wheel driving device to rotate clockwise, the chain bucket is fixed on the chain, the coal slime is scraped to the bucket through the chain bucket in the operation process of the equipment, and when the chain bucket moves to the position of the chain wheel, the chain bucket is overturned, and the coal slime is poured into a mine car to be transported away. (5) Water jet slurrying and slurry pump water sump cleaning: the method uses complete equipment to carry out the treatment on the water sump coal slime.

Among the above-mentioned various dredging modes, the transportation of the manual dredging tank car is the most traditional dredging mode, and is also the dredging mode with the lowest efficiency and the greatest manual strength. Because the coal slime viscosity is big, cause the workman when dredging, the difficulty of dredging is big and work efficiency is low. The other dredging modes and the manual dredging mode have the common problems of high viscosity, difficult cleaning and the like in the coal slime transportation process.

The utility model has the following contents:

the utility model aims to provide a continuous dredging system for an auxiliary well bottom water sump.

The utility model is implemented by the following technical scheme:

a continuous dredging system for an auxiliary shaft bottom sump comprises a dredging sump, wherein a sedimentation system is fixedly connected with the output end of the dredging sump, the sedimentation system is arranged and installed in a large roadway with ventilation conditions, the sedimentation system comprises two groups of sedimentation tanks, each group of sedimentation tank comprises a primary sedimentation tank and a secondary sedimentation tank, the primary sedimentation tank and the secondary sedimentation tank are arranged in series, a bucket lifting dredging device is fixedly installed in the primary sedimentation tank, the output end of the bucket lifting dredging device is fixedly connected with the input end of a transshipment conveying belt, the sludge output end of the secondary sedimentation tank is fixedly connected with the input end of a filter-pressing dehydration system through a conveying pipeline, an auxiliary shaft bottom sump is fixedly connected with the solution output end of the secondary shaft bottom sump, the sludge output end of the auxiliary shaft bottom sump is fixedly connected with the input end of the filter-pressing dehydration system through pumping and discharging coal slime, and the clear liquid output end of the auxiliary shaft bottom sump is fixedly connected with the input end of a distribution well, and the filter cake output end of the filter pressing and dewatering system is fixedly connected with the input end of the transfer conveyor belt.

Preferably, the first-stage sedimentation tank adopts a bucket type structure with a wide upper part and a narrow lower part of a cross-sectional structure, and the second-stage sedimentation tank adopts a horizontal flow type sedimentation tank.

Preferably, fixed mounting has turbidity sensor in the second grade sedimentation tank, filter-pressing dewatering system's filtrating output end fixedly connected with reserve sump, fixed mounting has coal slime siltation monitoring module on the vice bottom of the well sump.

Preferably, a sewage pump is fixedly mounted on the conveying pipeline, a vibration sensor and a temperature sensor are respectively and fixedly mounted on the sewage pump, and an external clamp type flowmeter is fixedly mounted on the sewage pipeline fixedly connected with the output end of the sewage pump.

Preferably, the turbidity sensor, the vibration sensor, the temperature sensor, the external clamp type flowmeter and the filter-pressing dehydration system are respectively and electrically connected with the PLC control system module in a signal transmission control mode.

The utility model has the advantages that: directly arrange the coal slime water in the auxiliary shaft bottom sump to belt aircraft nose sedimentation tank that concentrates, the coal slime water is the back of deposiing for the first time, the large granule sells the tooth-like desilter back of dredging, get into main coal stream conveyor system, the coal slime water after the secondary sinks is arranged to the new pressure filter that increases of belt aircraft nose through the water pump, the pressure filter concentrates the filter-pressing with the coal slime water after, the coal slime directly gets into main coal stream conveyor system, realize the continuous desilting in sump, the efficiency of the desilting is improved, the manual work of desilting has been saved, trackless rubber-tyred car transportation link has been saved, the cost of transportation is reduced, the emergence of transportation accident has been avoided simultaneously.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic diagram of a control and monitoring structure according to the present invention;

FIG. 3 is a schematic view of the control structure of the filter press according to the present invention;

FIG. 4 is a schematic cross-sectional view of the primary sedimentation tank according to the present invention;

FIG. 5 is a schematic cross-sectional structure diagram of the secondary sedimentation tank of the present invention.

In the figure: the system comprises a dredging water sump 1, a primary sedimentation tank 2, a secondary sedimentation tank 3, a bucket lifting dredging device 4, a transfer conveying belt 5, a turbidity sensor 6, a filter pressing and dewatering system 7, a sewage pump 8, an auxiliary well bottom water sump 9, a coal slime siltation monitoring module 10, a water distribution well 11, a standby water sump 12, a PLC control system module 13, a vibration sensor 14, a temperature sensor 15 and an external clamp type flowmeter 16.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the present invention provides the following technical solutions: a continuous dredging system of an auxiliary well bottom sump comprises a dredging sump 1, wherein the output end of the dredging sump 1 is fixedly connected with a sedimentation system, the sedimentation system is arranged and installed in a large roadway with ventilation conditions, the length of a sedimentation tank is far smaller than that of the sump, the sedimentation tank is arranged in the large roadway with ventilation conditions, the working conditions are good, and the mechanized rapid dredging is convenient to realize, the sedimentation system comprises two groups of sedimentation tanks, each group of sedimentation tank comprises a primary sedimentation tank 2 and a secondary sedimentation tank 3, the primary sedimentation tank 2 and the secondary sedimentation tank 3 are arranged in series, a bucket lifting dredging device 4 is fixedly installed in the primary sedimentation tank 2, the output end of the bucket lifting dredging device 4 is fixedly connected with the input end of a transshipping conveying belt 5, the sludge output end of the secondary sedimentation tank 3 is fixedly connected with the input end of a filter-pressing dewatering system 7 through a conveying pipeline, and the solution output end of the secondary sedimentation tank 3 is fixedly connected with an auxiliary well bottom sump 9, the sludge output end of the auxiliary shaft bottom water sump 9 is fixedly connected with the input end of the filter-pressing dewatering system 7 through pumping and discharging coal slime, the clear liquid output end of the auxiliary shaft bottom water sump 9 is fixedly connected with the input end of the water distribution well 11, and the filter cake output end of the filter-pressing dewatering system 7 is fixedly connected with the input end of the transshipment conveying belt 5.

The first-stage sedimentation tank 2 is of a bucket type structure with a wide upper part and a narrow lower part in a cross-sectional structure, and the second-stage sedimentation tank 3 is of a horizontal flow type sedimentation tank.

A turbidity sensor 6 is fixedly arranged in the secondary sedimentation tank 3, a filtrate output end of the filter pressing and dewatering system 7 is fixedly connected with a standby water sump 12, and a coal slime siltation monitoring module 10 is fixedly arranged on the auxiliary shaft bottom water sump 9.

A sewage pump 8 is fixedly arranged on the conveying pipeline, a vibration sensor 14 and a temperature sensor 15 are respectively and fixedly arranged on the sewage pump 8, and an external clamp type flowmeter 16 is fixedly arranged on a sewage pipeline fixedly connected with the output end of the sewage pump 8.

The turbidity sensor 6, the vibration sensor 14, the temperature sensor 15, the external clamp type flowmeter 16 and the filter-pressing dehydration system 7 are respectively and electrically connected with the PLC control system module 13 in signal transmission control.

The working principle and the using process of the utility model are as follows:

a sedimentation system is arranged in parallel in a large roadway in front of an inlet of a dredging water bin 1, the sedimentation system comprises two groups of sedimentation tanks, each group of sedimentation tank comprises a first-stage sedimentation tank 2 and a second-stage sedimentation tank 4 which are arranged in series, the first-stage sedimentation tank 1 is of a bucket structure with a wide upper part and a narrow lower part, and the second-stage sedimentation tank 3 is a horizontal-flow type sedimentation tank, as shown in fig. 4 and 5.

After the mine water enters the sedimentation system, the flow speed is slowed down, large coal slime particles carried in the mine water are settled in the primary sedimentation tank 1 under the action of gravity, and fine particles suspended in the mine water are further settled in the secondary sedimentation tank 2, so that the total amount of solid particles flowing into the inner section of the auxiliary shaft bottom water sump 9 is greatly reduced, and the purpose of reducing sludge deposited in the deep part of the auxiliary shaft bottom water sump 9 is achieved. Like this, most desilting work can concentrate on the clearance of sedimentation system, because sedimentation system's sedimentation tank length is far less than auxiliary shaft bottom sump 9, and sedimentation system arranges in the big lane that possesses the ventilation condition moreover, and operating condition is good, is convenient for realize mechanized quick desilting.

After the mine water is intercepted and settled, the settled coal slime shows different physical characteristics, the coal slime particles in the primary sedimentation tank 2 are relatively large, the water content is low, the viscosity is low, the fluidity is poor, and the physical characteristics are close to solid bulk materials; the coal slime inside the secondary sedimentation tank 3 and the auxiliary well bottom sump 9 has fine particles, high water content, high viscosity and good fluidity after disturbance, and the physical properties of the coal slime are close to those of fluid.

Therefore, the deposited sludge can be treated in sections by adopting different dredging processes, the coal slime in the primary sedimentation tank 2 is cleaned according to solid bulk materials by adopting dredging and loading, the coal slime in the secondary sedimentation tank 3 and the auxiliary well bottom water sump 1 is cleaned according to viscous fluid, and the coal slime is pumped and discharged by adopting a pump, and is subjected to filter pressing and dehydration.

Thus, a dynamic and multi-level desilting mode of daily cleaning of the two-stage sedimentation tank and regular cleaning of the auxiliary well bottom water sump 9 is formed.

The primary sedimentation tank 1 is of a square bucket structure with a wide upper part and a narrow lower part, and the wide upper part is used for increasing the flow area and reducing the flow speed of mine water, so that sedimentation of coal slime particles carried by the mine water is facilitated. The lower narrow part is to facilitate collecting settled coal slime, the settled coal slime slides into the bottom of the sedimentation tank, the bucket lifting dredging device 4 is installed at the bottom of the primary sedimentation tank 1, the bucket lifting dredging device 4 adopts a dewatering bucket elevator, and when mine water flows through the bucket lifting dredging device 4, large coal slime particles carried in the mine water are dug and are dewatered by gravity, and then fall to a transfer conveyor belt 5 to be transported out.

Second grade sedimentation tank 3 is the rectangle sedimentation tank, and the section is narrow down for wide-end equally, and the mine water overflows from first grade sedimentation tank 2 and gets into second grade sedimentation tank 3, and its coal slime granule that carries is generally less (<1mm), is convenient for adopt pump drainage filter-pressing desilting mode, and the deposit coal slime is collected the material collection hole through the mud scraping plate of locating the bottom of the pool, is discharged by the dive dredge pump, gets into filter-pressing dewatering system, and the pressure is pressed into the coal cake and is transported out.

Because thick coal slime granule has already subsided in sedimentation system, the coal slime granule that gets into the inside of vice well bottom sump 9 is tiny, can be through the stirring back, adopts the mode of pump suction drainage to clear up.

The coal slime that secondary sedimentation tank 3 and auxiliary shaft bottom sump 9 cleared up out is carried to filter-pressing dewatering system 7 through the dredge pump, and filter-pressing dewatering system 7 includes pressure filter, sediment stuff pump, connecting tube and control system, and the coal slime forms the coal cake after the filter-pressing dehydration and transports away.

The whole working process of the cleaning system is to detect the turbidity state of the secondary sedimentation tank 3 by detecting the turbidity sensor 6, the temperature sensor 15 and the vibration sensor 14 obtain the working condition of the machine, and the working condition is controlled by the PLC control system module 13 to drive the sewage pump 8 and the filter pressing dehydration system 7 to start, so that the working condition of the silt remover is detected and controlled.

Meanwhile, the control mode key is used for selecting an automatic control mode and a manual control mode, the acceleration and deceleration key is used for manually controlling the sewage discharge speed, and the automatic control mode is used for automatically controlling the current sewage discharge and filter pressing speeds.

One-level sedimentation tank 2 and second grade sedimentation tank 3 deposit the coal slime interception of large granule, the coal slime water deposits through one-level sedimentation tank 2, the large granule coal slime is carried out to the reprinting belt through the fill, all the other coal slime water gets into second grade sedimentation tank 3, turbidity sensor 6 is equipped with in the second grade sedimentation tank 3, when the coal slime turbidity is higher than the setting value, vice well bottom sump 9 gate is closed, dredge pump 8 starts to pump drainage, when coal slime water concentration is less than the setting value, vice well bottom sump 9 gate is opened, dredge pump 8 stop work.

The sewage pump 8 is provided with a vibration sensor 14 for monitoring the working state of the sewage pump in real time, and when the vibration frequency is abnormal, the sewage pump 8 stops working and gives an alarm. A temperature sensor 15 is arranged on a motor of the sewage pump 8, the temperature of the motor is monitored in real time, the sewage pump 8 stops working and gives an alarm when the temperature is abnormal, an external clamp type flowmeter 16 is arranged on a sewage pipeline connected with the sewage pump 8, the flow passing through the pipeline is monitored in real time, the daily conveying flow is recorded, and the sewage pump 8 stops working when the flow reaches a set value.

The filter pressing and dewatering system 7 is mainly controlled by a PLC control system module 13, and the PLC control system module 13 comprises a PLC control system and an input and output external component. The input part comprises an electric contact pressure gauge, a manual switch and a travel switch; the output component is an electromagnetic valve. The filter-pressing dehydration system 7 controls the electromagnetic valve through the pressure signal, the stroke signal and the manual switch signal, so as to achieve the purpose of controlling the filter-pressing dehydration system 7, as shown in fig. 3.

In the control of the filter-pressing dewatering system 7, the input signals of the PLC control system comprise switch input signals, electric contact pressure gauge input signals and travel switch signal input signals, wherein the switch signal input amount comprises a process starting step, a manual switch, an automatic switch, a feeding end step, a stopping step, a pulling plate forward transmission step of the filter press, a pulling plate reverse rotation step of the filter press, a cylinder pressing step and a cylinder releasing step, the electric contact pressure gauge input amount comprises a cylinder pressure upper limit, a pulling plate forward rotation pressure upper limit of the filter press, a pulling plate reverse rotation pressure upper limit of the filter press, a travel switch signal, a pulling plate forward rotation limit of the filter press, a pulling plate reverse rotation limit of the filter press, the PLC control system output signals control the electromagnetic valve action through a relay, the electromagnetic valve action comprises the cylinder pressing step, the cylinder releasing step, the motor forward rotation step and the motor reverse rotation step.

The turbidity sensor 6 adopts an YHZ1000 mining intrinsic safety type turbidity detector, the vibration sensor 14 adopts a GBY3.6 mining vibration sensor, the temperature sensor 15 adopts a GWP100 mining temperature sensor for detecting the underground environment temperature of a coal mine, and the external clamp type flowmeter 16 adopts a GLC400/1000 mining explosion-proof and intrinsic safety type ultrasonic flowmeter.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a continuous desilting system of auxiliary shaft bottom sump, includes desilting sump (1), its characterized in that, desilting sump (1) output fixedly connected with sedimentation system, sedimentation system arranges to be installed in the big lane that possesses the ventilation condition, sedimentation system includes two sets of sedimentation tanks, and every group sedimentation tank includes a one-level sedimentation tank (2) and a second grade sedimentation tank (3), and one-level sedimentation tank (2) and second grade sedimentation tank (3) series arrangement, fixed mounting has bucket lifting desilting device (4) in one-level sedimentation tank (2), bucket lifting desilting device (4) output and reprinting conveyor belt (5) input end fixed connection, the silt output of second grade sedimentation tank (3) passes through pipeline and filter-pressing dewatering system (7) input end fixed connection, the solution output end fixed connection of second grade sedimentation tank (3) has auxiliary shaft bottom sump (9), the silt output of vice well bottom sump (9) is through pump drainage coal slime and filter-pressing dewatering system (7) input fixed connection, the clear liquid output and distribution well (11) input fixed connection of vice well bottom sump (9), the filter cake output and the reprint conveyor belt (5) input fixed connection of filter-pressing dewatering system (7).

2. The continuous dredging system for the auxiliary bottom-of-well water sump according to claim 1, wherein: the first-stage sedimentation tank (2) adopts a bucket type structure with a wide upper part and a narrow lower part of a cross-section structure, and the second-stage sedimentation tank (3) adopts a horizontal flow type sedimentation tank.

3. The continuous dredging system for the auxiliary bottom-of-well water sump according to claim 2, wherein: fixed mounting has turbidity sensor (6) in second grade sedimentation tank (3), the filtrating output end fixedly connected with reserve sump (12) of filter-pressing dewatering system (7), fixed mounting has coal slime siltation monitoring module (10) on vice well bottom sump (9).

4. The continuous dredging system for the auxiliary bottom-of-well water sump according to claim 3, wherein: fixed mounting has dredge pump (8) on the pipeline, on dredge pump (8) respectively fixed mounting have vibration sensor (14) and temperature sensor (15), fixed mounting has outer clamp formula flowmeter (16) on the blow off pipeline of dredge pump (8) output end fixed connection.

5. The continuous dredging system for the auxiliary bottom-of-well water sump according to claim 4, wherein: the turbidity sensor (6), the vibration sensor (14), the temperature sensor (15), the external clamp type flowmeter (16) and the filter pressing dehydration system (7) are respectively and electrically connected with the PLC control system module (13) in signal transmission control.