CN221074362U - Device for exhausting filling pipe network and steady-state conveying of slurry - Google Patents

Abstract

The utility model provides a device for exhausting a filling pipe network and stably conveying slurry, which comprises a feeding pipe, an exhaust box, a slurry regulating box and a discharging pipe which are sequentially connected, and further comprises a pressure regulating unit which is connected with the exhaust box and the slurry regulating box, wherein a material guide plate and a material separation sieve are arranged in the exhaust box, and the slurry regulating box is internally provided with a material separation plate which divides the material guide plate into an upper pressure regulating area and a lower slurry buffer area. When the device is applied, air-containing filling slurry sequentially enters the exhaust box and the slurry adjusting box through the feeding pipe, and gas wrapped by the slurry is smoothly separated from the slurry through the cooperation of the exhaust box, the slurry adjusting box and the pressure adjusting unit, so that the flow of discharged slurry is flexibly adjusted, steady-state conveying of the slurry is realized, the risk of pipe blocking and pipe bursting is reduced, the negative influence of a large amount of gas mixed with the slurry on pipeline conveying is avoided, smooth running of a pipe network is ensured, and the filling quality of a mine goaf is improved.

Description

Device for exhausting filling pipe network and steady-state conveying of slurry

Technical Field

The utility model relates to the technical field of mine filling, in particular to a device for filling pipe network exhaust and slurry steady-state conveying.

Background

The mine filling adopts the most economical and efficient pipeline transportation, the conventional mine adopting the self-flow filling commonly encounters a free falling section of a vertical pipe, a large amount of air is wrapped and clamped into the pipeline by slurry, and an air cannon or a vacuum state is formed after the air cannon or the vacuum state is formed after the air cannon is subjected to pulse, sharp compression or stretching in the high-speed flowing process, so that the pipeline vibrates greatly, the pipe wall is accelerated to be worn by high-energy density impact, the slurry is easy to separate under the severe and frequent action, and pipe blocking and pipe explosion accidents are frequent, so that the underground filling operation is greatly influenced. Therefore, how to remove a large amount of gas mixed in the high-speed flowing filling slurry becomes a great technical problem for restricting the mine filling field to realize safe and efficient filling.

In the prior art, there are related devices for discharging surplus gas applied to the process of tailing conveying and filling slurry conveying, for example, an utility model patent (application number is CN 201711157284.5) discloses a device for eliminating the air resistance of a pumping pipeline of filling slurry downwards, which comprises a guide valve, a separation tank and an exhaust valve; one end of the guide valve is communicated with the filling slurry downward pumping pipeline, and the other end of the guide valve is connected with the bottom of the separation tank; the exhaust valve is arranged at the top or the upper side wall of the separation tank; although the device has simple structure, convenient use and low failure rate, the device has a certain elimination effect on the air resistance in the pumping pipeline of the filling slurry downwards; however, the main principle is that the air and slurry density difference is utilized to cause different buoyancy, so that the actuating mechanism opens the channel when exhausting and closes the channel when the slurry approaches, the essential principle is similar to that of the common exhaust valve, and the air exhaust valve is a passive exhaust mode; the device can still be adhered to the executing mechanism by solid substances such as tailings, cement and the like, so that the exhaust effect is affected; meanwhile, the conventional device does not well solve the problems that three-phase flow (air, solid particles and water) of a high pressure head flows in a pipeline, the pipeline is damaged by the speed negligence, slurry segregation is caused, and the underground filling quality is influenced by intermittent injection at an outlet of the pipeline.

In view of the foregoing, there is a need for an improved device for exhausting and steady-state slurry delivery in a filling pipe network.

Disclosure of utility model

The utility model aims to provide a device for exhausting and steady-state conveying of slurry of a filling pipe network, which solves the negative influence of mixing of a large amount of gas in a filling standpipe on conveying of a filling pipe through the cooperation of an exhaust box, a slurry regulating box and a pressure regulating unit, stabilizes the flow rate of the slurry after exhausting, ensures smooth operation of the pipe network and further improves the filling quality of a mine goaf.

The utility model provides a device for exhausting and steady-state conveying of slurry of a filling pipe network, which comprises a feeding pipe, an exhaust box, a slurry regulating box and a discharging pipe which are sequentially connected, and further comprises a pressure regulating unit for connecting the exhaust box and the slurry regulating box, wherein a material guide plate and a screen are arranged at the lower part in the exhaust box, the material guide plate is opposite to a slurry inlet in the exhaust box, and the screen is covered outside the slurry inlet and the material guide plate; the slurry regulating box is internally provided with a material separating plate in sliding fit with the inner wall of the slurry regulating box, an upper baffle and a lower baffle which limit the up-down movement range of the material separating plate, and the material separating plate divides the slurry regulating box into an upper pressure regulating area and a lower slurry buffer area;

The air-containing filling slurry is sequentially input into the exhaust box and the slurry regulating box through the feeding pipe, the pressure regulating unit is used for exhausting and stably regulating the flow of the filling slurry in the exhaust box and the slurry regulating box, and the discharging pipe is used for outputting the stable slurry without air.

As a further improvement of the utility model, the surface of the stock guide, which is opposite to the slurry inlet, and the bottom plate of the exhaust box are arranged at an included angle of 100-145 degrees, and the mesh degree of the separating screen is (40-60) x (40-60) mm.

As a further improvement of the utility model, a connecting pipe for connecting the exhaust box and the slurry regulating box is arranged between the exhaust box and the slurry regulating box, and the feeding pipe, the connecting pipe and the discharging pipe are arranged at the same horizontal position and are respectively connected with the bottom of the exhaust box or the slurry regulating box.

As a further improvement of the utility model, the top of the exhaust box is provided with a material level gauge, an air outlet pipe and a first electric control valve arranged on the air outlet pipe, and the top of the slurry regulating box is provided with an exhaust pipe and a second electric control valve arranged on the exhaust pipe; the level gauge monitors the liquid level line of the filling slurry in the exhaust box in real time.

As a further improvement of the utility model, the pressure regulating unit comprises a central control box, a high-pressure air compressor, an air inlet pipe for connecting the high-pressure air compressor with an exhaust box and connecting the high-pressure air compressor with a slurry regulating box, wherein the central control box is in signal connection with the first electric control valve and the second electric control valve.

As a further improvement of the utility model, the air inlet pipe is also provided with a branch pipe communicated with an air outlet pipe at the top of the exhaust box, and the branch pipe is provided with a third electric control valve and a first check valve which are connected with the central control box in a signal manner, so that the timing back-flushing function can be executed, and the influence of slurry sputtering on the air outlet pipe is avoided.

As a further improvement of the utility model, a fourth electric control valve and a second check valve which are connected with the central control box in a signal way are arranged on an air inlet pipe between the high-pressure air compressor and the exhaust box; the level gauge monitors the height of a filling slurry liquid level line in the exhaust box and feeds back the height to the central control box, and the central control box controls the opening of the high-pressure air compressor, the fourth electric control valve, the second check valve and the first electric control valve to supplement pressure or exhaust the upper part of the exhaust box.

As a further improvement of the utility model, a fifth electric control valve and a third check valve which are in signal connection with the central control box are arranged on an air inlet pipe of the high-pressure air compressor and the slurry regulating box, and a flowmeter which is in signal connection with the central control box is arranged on the discharging pipe; the flow meter monitors the output slurry flow in real time and feeds back the output slurry flow to the central control box, and the central control box controls the high-pressure air compressor to work, the fifth electric control valve, the third check valve and the second electric control valve to be opened, so that the material separation plate is controlled to move up and down, and the slurry flow is regulated and controlled.

As a further improvement of the utility model, the device for exhausting and steady-state conveying of the filling pipe network is arranged at a position behind the horizontal pipeline of the filling vertical pipe, and the feeding pipe and the discharging pipe are connected with the horizontal pipeline.

As a further development of the utility model, the height of the screen in the exhaust box is below the level line of the filling slurry and the width is not more than two-thirds of the width of the exhaust box.

The beneficial effects of the utility model are as follows:

1. The utility model relates to a device for filling pipe network exhaust and slurry steady-state conveying, which comprises a feeding pipe, an exhaust box, a slurry regulating box, a discharging pipe, a pressure regulating unit, a material guide plate and a screen, wherein the feeding pipe, the exhaust box, the slurry regulating box and the discharging pipe are sequentially connected; the slurry regulating box is internally provided with a material separating plate which divides the slurry regulating box into an upper pressure regulating area and a lower slurry buffering area. When the device is used, air-containing filling slurry enters an exhaust box through a feed pipe, is buffered and promoted to be separated by a material guide plate and a screen, then enters a slurry regulating box, a pressure regulating unit is used for exhausting and stably regulating the flow of the filling slurry in the exhaust box and the slurry regulating box, and finally, the stable slurry without air is output through a discharge pipe for filling the empty area. The device solves the negative influence of the mixing of a large amount of gas in the filling standpipe on the transportation of the filling pipeline through the cooperative cooperation of the exhaust box, the slurry regulating box and the pressure regulating unit, stabilizes the slurry flow rate after the exhaust, ensures the smooth running of a pipe network, and further improves the filling quality of a mine goaf.

2. The exhaust box is internally provided with the material guide plate and the separation net, and the material guide plate has the effects of buffering and guiding the slurry in a turbulent flow injection state; the separation net is matched with the material guide plate to prevent the slurry from splashing, so that the slurry is turned over in a certain range, the separation of the slurry and the wrapping gas is facilitated, and the air wrapped in the filling slurry is promoted to be released into the upper space of the exhaust box. The slurry regulating box is divided into an upper pressure regulating area and a lower slurry buffer area by a material separating plate, and the pressure of the upper pressure regulating area is regulated and controlled by a pressure regulating unit, so that the material separating plate runs in the box body, and the size of the lower slurry buffer area is regulated, so that the slurry flow is regulated; the storage capacity of the slurry regulating box is regulated and controlled through the injection and the discharge of high-pressure gas, so that the slurry regulating box is efficient and quick, the accurate regulation of the slurry flow is realized, and the stable transportation of the slurry is facilitated.

3. The device adopts high-pressure air as a power source, forms a space with controllable pressure in the exhaust box, enables gas wrapped by slurry to be smoothly separated from the slurry, enters the slurry regulating box, flexibly regulates the flow of discharged slurry according to the requirement of a pressure regulating area at the upper part of the slurry regulating box, realizes steady-state conveying of the slurry, prolongs the service life of a pipe network, and greatly reduces the risk of pipe blockage and pipe explosion. In addition, the device for exhausting the filling pipe network and steady-state conveying of the slurry has high degree of automation, status signals of different instruments and equipment are transmitted to the central control box, and control signals are sent by the central control box to complete exhausting of the filling slurry, thereby realizing steady-state conveying of the filling slurry, reducing labor intensity of workers and ensuring safety of filling operation.

Drawings

FIG. 1 is a schematic diagram of the apparatus for exhausting a filling pipe network and steady-state slurry delivery according to the present utility model.

Fig. 2 is a schematic top view of the device for exhausting and steady-state slurry transportation of a filling pipe network according to the present utility model.

Reference numerals

100-A device for filling pipe network exhaust and slurry steady-state conveying; 110-feeding pipe; 120-exhaust box; 121-a material guide plate; 122-screening; 123-level gauge; 124-an outlet duct; 125-a first electrically controlled valve; 126-level line; 130-a slurry regulating box; 131-a material separation plate; 132-upper baffle; 133-lower baffle; 134-upper pressure regulation region; 135-lower slurry buffer zone; 136-exhaust pipe; 137-a second electrically controlled valve; 140-a discharge pipe; 141-a flow meter; 151-a central control box; 152-high pressure air compressor; 153-air inlet pipe; 154-a third electrically controlled valve; 155-a first non-return valve; 156-fourth electrically controlled valve; 157-a second check valve; 158-a fifth electronically controlled valve; 159-a third check valve; 160-connecting pipes; 170-manometer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in detail with reference to the accompanying drawings and specific embodiments.

It should be noted that, in order to avoid obscuring the present utility model due to unnecessary details, only structures and/or processing steps closely related to aspects of the present utility model are shown in the drawings, and other details not greatly related to the present utility model are omitted.

In addition, it should be further noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Examples

Referring to fig. 1-2, a device 100 for exhausting and steady-state slurry transportation of a filling pipe network includes a feeding pipe 110, an exhaust box 120, a slurry adjusting box 130, a discharging pipe 140, and a pressure adjusting unit for connecting the exhaust box 120 and the slurry adjusting box 130, wherein a material guiding plate 121 and a screen 122 are disposed at the lower part in the exhaust box 120, the material guiding plate 121 is disposed opposite to a slurry inlet in the exhaust box 120, and the screen 122 is covered outside the slurry inlet and the material guiding plate 121. When the device is in operation, air-containing filling slurry enters the exhaust box 120 through the feed pipe 110, is buffered and promoted to be separated by the guide plate 121 and the screen 122, and then enters the slurry regulating box 130, the pressure regulating unit is used for exhausting and stably regulating the flow of the filling slurry in the exhaust box 120 and the slurry regulating box 130, and finally, the stable slurry without air is output through the discharge pipe 140 for filling the empty area.

Specifically, the slurry adjusting tank 130 is provided with a partition plate 131 slidably fitted to the inner wall thereof, and an upper baffle 132 and a lower baffle 133 for limiting the vertical movement range of the partition plate 131, and the partition plate 131 divides the slurry adjusting tank 130 into an upper pressure adjusting region 134 and a lower slurry buffer region 135. After the slurry passes through the exhaust box 120 to eliminate redundant gas, in order to ensure that the slurry runs in a stable state in a subsequent pipeline, the slurry is kept at a reasonable flow rate, and the slurry is stably conveyed by adopting the slurry regulating box 130; the slurry adjusting box is divided into an upper pressure adjusting area 134 and a lower slurry buffering area 135 by a material separating plate 131, the upper pressure adjusting area 134 is adjusted by a pressure adjusting unit, the material separating plate 131 is enabled to run in the box through pressure change, the running position of the material separating plate is limited by an upper baffle 132 and a lower baffle 133, and the size of the lower slurry buffering area 135 is adjusted, so that the slurry flow is adjusted.

In some specific embodiments, the upper baffle 132 and the lower baffle 133 are fixed to the inner wall of the slurry adjusting tank 130, may be arc plates around the circumference of the inner wall of the slurry adjusting tank 130, and may be plates disposed in pairs on the inner wall of the slurry adjusting tank 130, and serve to limit the up-and-down movement of the material separating plate 131.

The surface of the material guide plate 121 opposite to the slurry inlet and the bottom plate of the exhaust box 120 are arranged at an included angle of 100-145 degrees, and the screen 122 has a mesh size of (40-60) x (40-60) mm. The height of the screen 122 in the exhaust box 120 is lower than the lower threshold value of the liquid level of the filling slurry, and the width is not more than two-thirds of the width of the exhaust box 120; the upper and lower critical values of the filling slurry level are determined according to the parameters of the actual filling slurry. Considering that the fed slurry is in a turbulent flow injection state, a material guide plate 121 and a separation screen 122 are arranged at the lower part of the exhaust box 120, so that the splashing of the slurry is avoided, and the separation of the slurry and the wrapped gas is facilitated.

In some other embodiments, the exhaust box 120 is welded by 15-20 mm steel plates and is a fully-closed cuboid hollow structure; the feeding pipe 110, the connecting pipe 160 and the discharging pipe 140 are seamless steel pipes with the same specification, and are determined according to the actual filling conveying capacity.

In some other embodiments, the material guiding plate 121 is a steel plate with a thickness of 12mm, and is connected to the bottom of the exhaust box 120 by welding, and the material guiding plate 121 forms an included angle of 120-135 degrees with the bottom plate of the box, so as to play a role in buffering and guiding.

In some other embodiments, the screen 122 is formed by welding reinforcing bars with phi 8-10 mm according to a mesh degree of 50×50mm, and is welded and fixed on the inner side of the box body of the exhaust box 120, and the material guiding plate 121 and the screen 122 mainly function to enable slurry to tumble in a certain range and promote air entrapped in filling slurry to be released to the upper space of the exhaust box 120.

A connecting pipe 160 for connecting the exhaust box 120 and the slurry regulating box 130 is arranged between the exhaust box 120 and the slurry regulating box 130, and the feeding pipe 110, the connecting pipe 160 and the discharging pipe 140 are arranged at the same horizontal position and are respectively connected with the bottoms of the exhaust box 120 or the slurry regulating box 130. It should be noted that, the device 100 for exhausting the filling pipe network and steady-state delivering the slurry is disposed at a position behind the horizontal pipeline from the filling standpipe, and the feed pipe 110 and the discharge pipe 140 are both connected to the horizontal pipeline, so as to perform the functions of exhausting and adjusting the steady state of the slurry during the transportation of the filling slurry in the horizontal pipeline.

The top of the exhaust box 120 is provided with a material level meter 123, an air outlet pipe 124 and a first electric control valve 125 arranged on the air outlet pipe 124, and the top of the slurry regulating box 130 is provided with an exhaust pipe 136 and a second electric control valve 137 arranged on the exhaust pipe 136; the level gauge 123 monitors the level line 126 of the filling slurry in the exhaust tank 120 in real time, and feeds back to the pressure regulating unit, and the level line 126 is controlled to be between the upper and lower critical values by the pressure regulating unit.

The pressure regulating unit comprises a central control box 151, a high-pressure air compressor 152, an air inlet pipe 153 for connecting the high-pressure air compressor 152 with the exhaust box 120 and connecting the high-pressure air compressor 152 with the slurry regulating box 130, wherein the central control box 151 is in signal connection with the first electric control valve 125 and the second electric control valve 137; the air inlet pipe 153 is also provided with a branch pipe communicated with the air outlet pipe 124 at the top of the exhaust box 120, and the branch pipe is provided with a third electric control valve 154 and a first check valve 155 which are in signal connection with the central control box 151, so that a timing back-flushing function can be executed, and the influence of slurry sputtering on the air outlet pipe 124 is avoided. In this way, even if slurry is sputtered to the air outlet pipe 124, the back blowing function can be started at regular time by controlling the third electric control valve 154 and the first check valve 155 by the central control box 151, and a certain amount of air is blown into the air exhaust box 120, so that the smoothness of the air outlet pipe 124 is ensured, and the normal operation of the air exhaust function of the air exhaust box 120 is ensured.

Specifically, the pressure regulating unit performs the following steps for exhausting the filling slurry in the exhaust tank 120 and the slurry regulating tank 130 and regulating the flow rate in a steady state:

A fourth electric control valve 156 and a second check valve 157 which are in signal connection with the central control box 151 are arranged on the air inlet pipe 153 between the high-pressure air compressor 152 and the exhaust box 120; when the level gauge 123 monitors that the filling slurry level line 126 in the exhaust box 120 is higher than the upper critical value, the central control box 151 controls the high-pressure air compressor 152 to work, opens the fourth electric control valve 153 and the second check valve 157, and supplements pressure for the upper part of the exhaust box 120 through the air inlet pipe 153; when the level gauge 123 monitors that the filling slurry level line 126 in the exhaust box 120 is lower than the lower critical value, the central control box 151 controls the first electric control valve 125 on the air outlet pipe 124 to open, and the upper part of the exhaust box 120 is exhausted.

A fifth electric control valve 158 and a third check valve 159 which are in signal connection with the central control box 151 are arranged on the air inlet pipe 153 of the high-pressure air compressor 152 and the slurry regulating box 130, a flowmeter 141 which is in signal connection with the central control box 151 is arranged on the discharging pipe 140, and the flowmeter 141 monitors the output slurry flow in real time and feeds back to the central control box 151; when the flow rate of the slurry is monitored by the flow meter 141 to be lower than the critical range, the central control box 151 controls the high-pressure air compressor 152 to work, the fifth electric control valve 158 and the third check valve 159 are opened, high-pressure air is injected into the slurry regulating box 130 through the air inlet pipe 153, the material separating plate 131 moves downwards, and the discharge of the slurry is accelerated; when the flow rate of the slurry is higher than the critical range, the flow meter 141 monitors that the central control box 151 controls the second electric control valve 137 on the exhaust pipe 136 to be opened, and the slurry regulating box 130 is exhausted, so that the material separating plate 151 moves upwards to buffer the slurry so as to reduce the flow rate.

Thus, after the slurry enters the exhaust box 120, the air wrapped by the slurry is rapidly released into the upper space in a high-pressure environment, the pressure of the upper space is changed due to the released air, the exhaust box 120 utilizes the pressure regulating and controlling unit to regulate the working states of the high-pressure air compressor 152 and the valves through the central control box 151 according to the real-time monitoring of the level gauge 123, and the air pressure at the upper part of the exhaust box 120 is increased or reduced, so that the liquid level is controlled in a reasonable range. The slurry exhausted from the exhaust box 120 enters the slurry adjusting box 130 through the connecting pipe 160, and the flow rate of the slurry is changed greatly because the slurry is in an irregular pulse injection shape before being exhausted, so that the flow rate of the slurry in the whole device and the filling pipe is affected to change, and the slurry adjusting box 130 stabilizes the flow rate in a reasonable range in the subsequent conveying process through a certain buffer pressure stabilizing adjusting function, so that the slurry segregation is avoided.

In some other embodiments, the high pressure air supply pressure of the high pressure air compressor 152 may be up to 30MPa, completely covering the transfer pressure converted from the potential energy of the mine gravity filling riser (typically < 10 MPa).

In some other embodiments, a pressure gauge 170 is also provided on the inlet pipe 110 in signal communication with the central control tank 151 for monitoring the pressure of the charge slurry entering the discharge tank 120.

The device 100 for filling pipe network exhaust and slurry steady-state conveying has high degree of automation, can reduce the labor intensity of workers and ensures the operation safety. The PLC system is built in the central control box 151, the measuring instruments (the flowmeter 141, the pressure gauge 170, etc.), the electric control equipment (the high-pressure air compressor 152, the plurality of electric control valves, the level gauge 123, etc.) in the system are connected with the central control box 151 in a cable or wireless mode (the connection relation is omitted in the schematic diagram), the status signals of the instruments and the equipment are transmitted to the central control system of the central control box 151, a program is set, control signals are sent through the processing of different signals, the exhausting of filling slurry is completed, and the steady-state conveying of the filling slurry is realized.

In summary, when the device for exhausting and steady-state conveying of the filling pipe network provided by the utility model is used, air-containing filling slurry enters the exhaust box through the feed pipe, is buffered by the material guide plate and the screen to promote gas separation, then enters the slurry regulating box, the pressure regulating unit performs steady-state regulation on the exhaust and flow of the filling slurry in the exhaust box and the slurry regulating box, and finally, the steady-state slurry without air is output through the discharge pipe to perform filling operation of the empty area. The device adopts high-pressure air as a power source, forms a space with controllable pressure in the exhaust box, enables gas wrapped by slurry to be smoothly separated from the slurry, enters the slurry regulating box, flexibly regulates the flow of discharged slurry according to the requirement of a pressure regulating area at the upper part of the slurry regulating box, realizes steady-state conveying of the slurry, prolongs the service life of a pipe network, and greatly reduces the risk of pipe blockage and pipe explosion. According to the utility model, through the cooperative cooperation of the exhaust box, the slurry regulating box and the pressure regulating unit, the negative influence of the mixing of a large amount of gas in the filling standpipe on the transportation of the filling pipeline is solved, the slurry flow rate is stabilized after the exhaust, the smooth running of a pipe network is ensured, and the filling quality of a mine goaf is further improved.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model.

Claims (10)

1. The device for exhausting the filling pipe network and stably conveying the slurry is characterized by comprising a feeding pipe, an exhaust box, a slurry regulating box and a discharging pipe which are sequentially connected, and further comprising a pressure regulating unit for connecting the exhaust box and the slurry regulating box, wherein a material guide plate and a screen are arranged at the lower part in the exhaust box, the material guide plate is arranged opposite to a slurry inlet in the exhaust box, and the screen is covered outside the slurry inlet and the material guide plate; the slurry regulating box is internally provided with a material separating plate in sliding fit with the inner wall of the slurry regulating box, an upper baffle and a lower baffle which limit the up-down movement range of the material separating plate, and the material separating plate divides the slurry regulating box into an upper pressure regulating area and a lower slurry buffer area;

The air-containing filling slurry is sequentially input into the exhaust box and the slurry regulating box through the feeding pipe, the pressure regulating unit is used for exhausting and stably regulating the flow of the filling slurry in the exhaust box and the slurry regulating box, and the discharging pipe is used for outputting stable slurry without air.

2. The device for exhausting and steady-state conveying of slurry of a filling pipe network according to claim 1, wherein an included angle of 100-145 degrees is formed between the surface of the material guiding plate opposite to the slurry inlet and the bottom plate of the exhaust box, and the screen separation degree is (40-60) x (40-60) mm.

3. The device for exhausting and steady-state conveying of slurry of a filling pipe network according to claim 1, wherein a connecting pipe for connecting the exhaust box and the slurry adjusting box is arranged between the exhaust box and the slurry adjusting box, and the feeding pipe, the connecting pipe and the discharging pipe are arranged at the same horizontal position and are respectively connected with the bottoms of the exhaust box or the slurry adjusting box.

4. The device for filling pipe network exhaust and slurry steady-state delivery according to claim 1, wherein a level gauge, an air outlet pipe and a first electric control valve arranged on the air outlet pipe are arranged at the top of the exhaust box, and an exhaust pipe and a second electric control valve arranged on the exhaust pipe are arranged at the top of the slurry regulating box; the level gauge monitors the liquid level line of the filling slurry in the exhaust box in real time.

5. The device for exhausting and steady-state conveying of slurry of a filling pipe network according to claim 4, wherein the pressure regulating unit comprises a central control box, a high-pressure air compressor and an air inlet pipe for connecting the high-pressure air compressor with the exhaust box and connecting the high-pressure air compressor with the slurry regulating box, and the central control box is in signal connection with the first electric control valve and the second electric control valve.

6. The device for exhausting and steady-state conveying of slurry in a filling pipe network according to claim 5, wherein the air inlet pipe is further provided with a branch pipe communicated with an air outlet pipe at the top of the air exhaust box, and the branch pipe is provided with a third electric control valve and a first check valve which are in signal connection with the central control box, so that a timing back-blowing function can be executed, and the influence of slurry sputtering on the air outlet pipe is avoided.

7. The device for filling pipe network exhaust and slurry steady-state delivery according to claim 5, wherein a fourth electric control valve and a second check valve which are in signal connection with the central control box are arranged on an air inlet pipe between the high-pressure air compressor and the exhaust box; the level gauge monitors the height of a filling slurry liquid level line in the exhaust box and feeds back the height to the central control box, and the central control box controls the opening of the high-pressure air compressor, the fourth electric control valve, the second check valve and the first electric control valve to supplement pressure or exhaust the upper part of the exhaust box.

8. The device for filling pipe network exhaust and slurry steady-state delivery according to claim 5, wherein a fifth electric control valve and a third check valve which are in signal connection with the central control box are arranged on an air inlet pipe of the high-pressure air compressor and the slurry regulating box, and a flowmeter which is in signal connection with the central control box is arranged on the discharging pipe; the flow meter monitors the output slurry flow in real time and feeds back the output slurry flow to the central control box, and the central control box controls the high-pressure air compressor to work, the fifth electric control valve, the third check valve and the second electric control valve to be opened, so that the material separation plate is controlled to move up and down, and the slurry flow is regulated and controlled.

9. The device for filling pipe network exhaust and slurry steady state delivery according to claim 1, wherein the device for filling pipe network exhaust and slurry steady state delivery is arranged at a position behind a horizontal pipeline of a filling vertical pipe, and the feed pipe and the discharge pipe are connected with the horizontal pipeline.

10. The apparatus for exhausting and steady state delivery of slurry in a filling pipe network according to claim 4, wherein the height of said screen in said exhaust box is lower than the level line of said filling slurry, and the width is not more than two thirds of the width of the exhaust box.