Large underground sump desilting and sludge discharging system

Abstract

The utility model relates to a large underground sump desilting and sludge discharging system which comprises a sump, a settling pond, a sump, a slurry pump, an inlet pipeline, an inlet pipeline stop valve, a clean water pump, an outlet stop valve, an outlet pipeline, a plunger pump, a stirring barrel and a stirring motor. When the sludge in the water sump of the underground iron ore is cleaned, the sludge in the water sump is diluted by a high-pressure water gun, is pumped into the water collecting pit from the settling pond through the inlet pipeline, is uniformly stirred, is conveyed to the suction inlet of the stop valve of the inlet pipeline, is diluted again through the inlet pipeline, and is discharged to the ground surface through the inlet pipeline. The underground sump dredging efficiency is greatly improved, operating personnel and maintenance personnel are reduced, personnel safety is guaranteed, and labor cost is saved.

Description

TECHNICAL FIELD

[0001] The patent application belongs to the technical field of mine equipment, and more particularly relates to a large underground sump dredging and sludge discharging system. BACKGROUND

[0002] The underground sump, whether large or small, needs dredging and sludge discharging operation.

[0003] The current dredging work usually needs manual entry into the sump, which has great labor intensity, large workload, low efficiency, high labor cost, long dredging period, great risk of single sump operation, small water storage in single sump, difficulty in adjusting the main water pump operation period, and inability to reduce energy consumption by using peak-valley electricity.

[0004] At the same time, the current sump sludge discharging usually adopts the sludge discharging by transport machinery, and the sludge is transported to the ground by using a shovel truck, a mine car and other equipment. This method has strong equipment versatility, small amount of infrastructure engineering and low investment, but has many transport links, poor operation conditions, certain interference to large roadway transportation and shaft lifting. Therefore, it is only suitable for small mine sumps, that is, small and medium-sized sumps, and the use scene is limited.

[0005] The large underground sump dredging and sludge discharging faces many difficulties such as poor working environment, equipment limitation, technical problems, environmental pollution, safety risk, long dredging period and high comprehensive cost. In order to solve these difficulties, advanced technology and equipment need to be used to improve the dredging and sludge discharging efficiency and safety. CONTENT OF THE INVENTION

[0006] The purpose of the utility model is to solve the problems of the prior art, and a large underground sump dredging and sludge discharging system is provided to improve the efficiency and investment cost utilization, reduce the operation and maintenance cost of the equipment, and improve the safety of the operating personnel.

[0007] In order to solve the above problems, the technical scheme adopted by the utility model is:

[0008] A large underground sump dredging and sludge discharging system, which comprises a sump, a sedimentation tank arranged at the inlet of the sump, a water collecting pit arranged in the sedimentation tank, a slurry pump arranged in the water collecting pit, an inlet pipeline connected with one end of the slurry pump, an inlet stop valve arranged on the inlet pipeline, a stirring barrel connected with the other end of the inlet pipeline, a stirring motor arranged on the top of the stirring barrel, a plunger pump connected with the bottom of the stirring barrel, a clean water pump connected with the plunger pump through a DN30 water pipe, an outlet pipeline connected with the plunger pump, and an outlet stop valve arranged on the outlet pipeline. The clean water pump and the plunger pump are connected through a DN30 pipeline.

[0009] Further, the water sump comprises an inner water sump and an outer water sump arranged inside and outside, wherein the capacity of the inner water sump is greater than that of the outer water sump, the inner water sump and the outer water sump are relatively independent, the inner water sump and the outer water sump are communicated through a water distribution gate valve in the middle to facilitate the desilting work of a single water sump, and each of the outer water sump and the inner water sump has a sedimentation tank.

[0010] Further, the capacity of the inner water sump is 7000m³, and the capacity of the outer water sump is 5000m³.

[0011] Further, the sedimentation tank is rectangular, the length thereof is 10 m, the width thereof is 4.5 m, and the sedimentation tank is used for depositing solid particles of 0.1 mm and above.

[0012] Further, the stirring motor is located at the top center of the stirring barrel, the size of the stirring barrel is ø2500*3000, and the model of the stirring motor is 7.5KW4P.

[0013] Further, the inlet pipeline is a DN150 cast iron pipe, the pressure of the inlet stop valve is PN1.6MPa, the outlet pipeline is a DN125 cast iron pipeline, and the pressure of the outlet stop valve is PN10MPa.

[0014] Thanks to the above technical scheme, the present application has the following beneficial effects:

[0015] When the patent is used for cleaning the silt in the water sump of an underground iron mine, the silt in the water sump is diluted by a high-pressure water gun, then is punched into a catch basin through an inlet pipeline from a sedimentation tank, is stirred uniformly, is sent to an inlet pipeline stop valve suction port, is diluted again through the inlet pipeline, and is discharged to the ground through the inlet pipeline, so that the desilting efficiency of the underground water sump is greatly improved, the operation and maintenance cost of the equipment is reduced, the number of operating personnel and maintenance personnel is reduced, the safety of the personnel is ensured, and the labor cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a front view structural schematic diagram of the present application.

[0017] Fig. 2 It is a top view structural schematic diagram of the present application.

[0018] Fig. 3 It is a whole structural schematic diagram of two water sumps in the embodiment of the present application.

[0019] Among them: water sump 1, sedimentation tank 2, catch basin 3, slurry pump 4, inlet pipeline 5, inlet stop valve 6, clean water pump 7, outlet stop valve 8, outlet pipeline 9, plunger pump 10, stirring barrel 11, stirring motor 12. DETAILED DESCRIPTION

[0020] The present application will be further described in detail in combination with the embodiments.

[0021] A large-scale underground sump dredging and sludge discharge system, such as Figs. 1-3 , comprising a sump 1, a sedimentation tank 2 arranged at the inlet of the sump 1, a water collecting pit 3 in the sedimentation tank 2, a slurry pump 4 installed inside the water collecting pit 3, an inlet pipeline 5 connected to one end of the slurry pump 4, an inlet stop valve 6 arranged on the inlet pipeline 5, a stirring barrel 11 connected to the other end of the inlet pipeline 5, a stirring motor 12 arranged at the top of the stirring barrel 11, a plunger pump 10 connected to the bottom of the stirring barrel 11, a clean water pump 7 connected to the plunger pump 10, an outlet pipeline 9 connected to the plunger pump 10, an outlet stop valve 8 arranged on the outlet pipeline 9, and the clean water pump 7 and the plunger pump 10 are connected by a DN30 pipeline.

[0022] The sump 1 comprises an inner sump and an outer sump arranged inside and outside, wherein the capacity of the inner sump is greater than that of the outer sump, for example, the capacity of the inner sump is 7000m³ and the capacity of the outer sump is 5000m³. The inner sump and the outer sump are relatively independent, and the inner sump and the outer sump are communicated through a water distribution gate valve in the middle to facilitate the dredging work of a single sump 1, and there is a sedimentation tank 2 in each of the outer sump and the inner sump.

[0023] The sedimentation tank 2 is rectangular, the length is 10m, the width is 4.5m, and it is used for sedimentation of solid particles of 0.1mm and above.

[0024] The stirring motor 12 is located at the top center of the stirring barrel 11, the stirring barrel 11 has a size of ø2500*3000, and the stirring motor 12 is a 7.5KW4P type.

[0025] The inlet pipeline 5 is a DN150 cast iron pipe, the pressure of the inlet stop valve 6 is PN1.6MPa, the outlet pipeline 9 is a DN125 cast iron pipe, and the pressure of the outlet stop valve 8 is PN10MPa Embodiment

[0026] A large-scale underground sump dredging and sludge discharge system, such as Fig. 1 , comprising a sump 1, a sedimentation tank 2, a water collecting pit 3, a slurry pump 4, an inlet pipeline 5, an inlet pipeline stop valve 6, a clean water pump 7, an outlet stop valve 8, an outlet pipeline 9, a plunger pump 10, a stirring barrel 11, and a stirring motor 12, the sedimentation tank 2 is arranged at the inlet of the sump 1, and a water collecting pit 3 is punched in the sedimentation tank 2.

[0027] In this embodiment, the sump 1 is divided into an inner sump and an outer sump, wherein the capacity of the inner sump is 7000m³ and the capacity of the outer sump is 5000m³, the inner sump and the outer sump are communicated through a water distribution gate valve in the middle, and there is a sedimentation tank 2 in each of the outer sump and the inner sump. The functions of the inner sump and the outer sump are: the inner sump and the outer sump are two relatively independent sumps, and they are communicated through a water distribution gate valve, which facilitates the dredging work of a single sump 1, and the underground collected water can be sent to the inner sump or the outer sump through the water ditch.

[0028] The sedimentation tank 2 is arranged at the inlet of the water sump 1 in the embodiment, and has a length of 10 m and a width of 4.5 m, and can deposit solid particles of 0.1 mm and above.

[0029] In the embodiment, a stirring motor 12 is arranged at the top center of the stirring barrel 11, the stirring barrel 11 has a size of ø2500*3000, and the stirring motor 12 is of a 7.5KW4P type.

[0030] In the embodiment, the inlet pipeline 5 is a DN150 cast iron pipe, the inlet stop valve 6 has a pressure of PN1.6MPa, the outlet pipeline 9 is a DN125 cast iron pipe, and the outlet stop valve 8 has a pressure of PN10MPa. Fig. 3 The pipeline at the top, Fig. 2 The pipeline at the bottom is the same pipeline, which is named as a stirring barrel pipeline. The outlet of the stirring barrel pipeline is connected to the inlet pipeline 5, and the inlet is directly connected to the stirring barrel 11.

[0031] Usage process:

[0032] The water sump 1 in the underground needs to store relatively clean water, so it needs to be dredged in advance. The primary water source in the underground contains a large amount of slurry, which forms sludge after deposition. When the system is used to clean the sludge in the water sump of the underground mine, the sludge in the water sump 1 is diluted by a high-pressure water gun, and then is pumped into the water collecting pit 3 through the inlet pipeline by the sedimentation tank 2. Therefore, the slurry first flows into the water collecting pit 3 of the sedimentation tank 2. A slurry pump 4 is arranged in the water collecting pit 3. The slurry is sent to the stirring barrel 11 through the inlet pipeline 5 and the inlet stop valve 6, and is stirred uniformly by the stirring motor 12 at the top of the stirring barrel 11, and then is sent to the suction inlet of the plunger pump 10. After being diluted again by the clean water pump 7, the diluted slurry is discharged to the ground through the outlet pipeline 9 and the outlet stop valve 8. After the slurry in the primary water source is treated, the remaining water source is mainly clean water, which is stored in the water sump 1. The inner water sump and the outer water sump are named according to the positions of the water sumps. The one near the water outlet is the inner water sump, and the one far away is the outer water sump. The inner water sump and the outer water sump cannot be dredged at the same time, and one of them needs to be used normally. Fig. 3 The configuration structure of the two water sumps 1 can further improve the dredging and sludge discharge efficiency. Fig. 3 The left outer water sump and the right outer water sump.

Claims

1. A large scale pit dewatering and sludge removal system characterized by: It includes water sump (1), setting in water sump (1) entrance place's sedimentation tank (2), be located in the water collecting pit (3) in sedimentation tank (2), install in the slurry pump (4) of water collecting pit (3) inside, with slurry pump (4) one end connection's inlet pipe (5), set up on inlet pipe (5) entrance intercept valve (6), with inlet pipe (5) another end connection's stirring bucket (11), set up in stirring bucket (11) top's stirring motor (12), with stirring bucket (11) bottom connection's plunger pump (10), through DN30 water pipe with plunger pump (10) connection's clean water pump (7), with plunger pump (10) connection's outlet pipe (9), set up on outlet pipe (9) outlet intercept valve (8).

2. A large scale downhole sump dredging and sludge removal system according to claim 1, characterized in that: Water sump (1) includes inner water sump and outer water sump, wherein the capacity of the inner water sump is greater than that of the outer water sump, the inner water sump and the outer water sump are relatively independent, the inner water sump and the outer water sump are communicated through a water distribution gate valve, so as to facilitate the desilting work of a single water sump (1), and each of the outer water sump and the inner water sump has a sedimentation tank (2).

3. A large scale downhole sump dredging and sludge removal system according to claim 2, characterized in that: The capacity of the inner water sump is 7000m³, and the capacity of the outer water sump is 5000m³.

4. A large scale downhole sump dredging and sludge removal system according to claim 1, characterized in that: The sedimentation tank (2) is rectangular, the length thereof is 10 m, the width thereof is 4.5 m, and the sedimentation tank (2) is used for depositing solid particles of 0.1 mm and above.

5. A large scale downhole sump dredging and sludge removal system according to claim 1, characterized in that: The stirring motor (12) is located at the top center of the stirring bucket (11), the stirring bucket (11) has a size of ø2500*3000, and the stirring motor (12) has a model of 7.5KW4P.

6. A large scale pit dewatering and sludge removal system according to any one of claims 1 to 5, characterized in that: The inlet pipe (5) is a DN150 cast iron pipe, the inlet intercept valve (6) has a pressure of PN1.6MPa, the outlet pipe (9) is a DN125 cast iron pipe, and the outlet intercept valve (8) has a pressure of PN10MPa.

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