CN222623729U - Automatic sedimentation circulation system for drainage of surface mine - Google Patents

Abstract

The utility model relates to the technical field of surface mine rain sewage treatment, in particular to an automatic sedimentation circulating system for surface mine drainage, which comprises a sedimentation tank, wherein a gravel sedimentation tank, a sand sedimentation tank, a clear sedimentation tank and a clean water tank are sequentially arranged in the sedimentation tank, and a control group is further arranged in the sedimentation tank. When the utility model is used, the sedimentation tank is divided into the gravel sedimentation tank, the sand sedimentation tank, the precipitation clearing tank and the clean water tank, and the control group is matched for use, so that the gravel sedimentation tank, the sand sedimentation tank and the precipitation clearing tank can filter the rain sewage discharged into the sedimentation tank for multiple times in a layered manner, different pumps are formed to correspond to use scenes, the automatic sedimentation, storage and recycling of the rain sewage are facilitated, the mechanical dredging is facilitated by concentrating the silt into the gravel sedimentation tank with the depth of two meters, and the direct discharge of the rain sewage in the storm is facilitated by arranging the overflow port at the top of the precipitation clearing tank, so that the sedimentation tank is prevented from being filled with the rain sewage and cannot be separated.

Description

Automatic sedimentation circulation system for drainage of surface mine

Technical Field

The utility model relates to the technical field of surface mine rain sewage treatment, in particular to an automatic sedimentation circulation system for surface mine drainage.

Background

When the surface vegetation of the surface mine is destroyed, the runoff formed by the water flow converging on the surface is mixed with silt, gravel, plastic paper bags and the like when the rainwater season arrives, and forms rain and sewage drainage after converging in a drainage ditch, and when the surface vegetation is in heavy rain, the runoff is wrapped with a large amount of silt, so that the rain and sewage drainage treatment of the surface mine faces a plurality of dilemmas.

Most surface mines do not have sedimentation tanks of a system or only have simple sedimentation tanks, the simple sedimentation tanks cannot completely treat sewage, and the sewage after sedimentation treatment is directly discharged outside in the environment, so that the sewage is not recycled, and some larger mine rain and sewage sedimentation facilities are quite complete, but the sedimentation tanks are unreasonable to be arranged, so that not only are sediment and gravel not separated to be sedimented, but also sediment pumps cannot be used, the condition that each pond needs to be dredged mechanically, and the depth of the sedimentation tanks is large, each dredging cannot be completely cleaned, so that a clean water tank is polluted, meanwhile, when the sedimentation tanks are not provided with a flood drainage facility, all sedimentation tanks are filled with rain and sewage in stormwater, the water cannot be separated, and the situation is quite different from the situation of recycling mine water resources advocated under great force.

In view of this, we propose an automatic sedimentation circulation system for surface mine drainage.

Disclosure of utility model

The utility model aims to provide a system capable of automatically precipitating and circulating water for draining rain and sewage in an open pit mine, so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the automatic sedimentation circulating system for the drainage of the surface mine comprises a sedimentation tank, wherein a gravel sedimentation tank for primary sedimentation, a sand sedimentation tank for secondary sedimentation, a clear sedimentation tank for tertiary sedimentation and a clear water tank for storing clear water after sedimentation are sequentially arranged in the sedimentation tank, and a control group for detecting the liquid level of each tank and controlling the operation of pumps in each tank is further arranged in the sedimentation tank.

As a further scheme of the utility model, the depth of the gravel sedimentation tank is two meters, the top of one side of the gravel sedimentation tank is provided with a water inlet, one side of the gravel sedimentation tank, which is far away from the water inlet, is provided with a through groove communicated with the sand sedimentation tank, and one side of the through groove, which is close to the gravel sedimentation tank, is provided with a filter screen for intercepting floaters.

As a further scheme of the utility model, a sludge pump for discharging sludge to the gravel settling tank is arranged in the sand settling tank.

As a further scheme of the utility model, the cross section of the bottom of the sedimentation tank is a special-shaped bottom surface with different heights, wherein the higher side of the bottom is close to the clean water tank, and the lower side of the bottom is close to the sand setting tank.

As a further scheme of the utility model, an introducing pump for discharging clear water into a clear water tank is arranged at the top of the higher side of the bottom of the clear water tank, a fine sand pump for discharging bottom sediment fine sand into a sand setting tank is arranged at the top of the lower side of the bottom of the clear water tank, and an overflow port for discharging flood is arranged at the top of the clear water tank.

As a further scheme of the utility model, a discharge pump is arranged in the clean water tank, and a discharge pipe for discharging clean water out of the clean water tank is arranged at a discharge outlet of the discharge pump.

As a further scheme of the utility model, the control group comprises an automatic control cabinet, a floating ball liquid level device and an ultrasonic depth sounder, wherein the ultrasonic depth sounder is respectively fixed at the tops of a gravel sedimentation tank, a sand sedimentation tank and a clear water sedimentation tank, and the floating ball liquid level device is respectively fixed at the tops of the clear water sedimentation tank and the clear water tank.

The utility model further provides a scheme that after the floating ball liquid level device and the ultrasonic sounding device detect the threshold value, signals are respectively transmitted from the signal output ends of the floating ball liquid level device and the ultrasonic sounding device to the signal input end of the automatic control cabinet, and the automatic control cabinet receives the signals and controls the pump in each pool to operate through the signal output end.

Compared with the prior art, the utility model has the beneficial effects that:

1. In the automatic sedimentation circulation system for the drainage of the surface mine, the sedimentation tank is divided into the gravel sedimentation tank, the sand sedimentation tank, the clear sedimentation tank and the clean water tank, and the gravel sedimentation tank, the sand sedimentation tank and the clear sedimentation tank are matched for use in a control group, so that the rain sewage discharged into the sedimentation tank is subjected to multi-time layered filtration, different pumps are formed to correspond to the use scenes, and the automatic sedimentation, storage and recycling of the rain sewage are facilitated.

2. In the automatic sedimentation circulation system for the drainage of the surface mine, the sludge is concentrated in the gravel sedimentation tank with the depth of two meters, so that the mechanical dredging is facilitated.

3. In this automatic sedimentation circulation system of surface mine drainage, through setting up the overflow mouth at the clear pond top of depositing, be favorable to directly discharging rain sewage when the heavy rain, avoid the sedimentation tank to be filled up by rain sewage, unable separation.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present solution.

The meaning of each reference sign in the figure is:

100. The device comprises a gravel sedimentation tank, 101, a water inlet, 102, a filter screen, 110, a sand sedimentation tank, 111, a sludge pump, 120, a sedimentation tank, 121, a fine sand pump, 122, an inlet pump, 123, an overflow port, 130, a clean water tank, 131, a discharge pump, 132, a discharge pipe, 200, a control group, 201, an automatic control cabinet, 202, a floating ball liquid level device, 203 and an ultrasonic depth finder.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, this embodiment provides an automatic sedimentation circulation system for surface mine drainage, including the sedimentation tank, be equipped with preliminary sediment's sediment pond 100, secondary sediment's grit chamber 110, tertiary sediment's clear pond 120 of depositing and the clear water pond 130 of clear water after the storage sediment in proper order in the sedimentation tank to filter the rainwater layering many times, and store the clear water that forms after filtering, be convenient for follow-up cyclic utilization, still be equipped with in the sedimentation tank and detect the liquid level in every pond and control each pond in pump moving's control group 200, cooperate the layering filtration of sedimentation tank, every pond forms the operational environment that each pump corresponds, thereby collect the silt, reduce the possibility that the rainwater is polluted by the silt.

The improvement of the embodiment is that the sedimentation tank is divided into the gravel sedimentation tank 100, the sand sedimentation tank 110, the clear sedimentation tank 120 and the clean water tank 130, and the sedimentation tank 100, the sand sedimentation tank 110 and the clear sedimentation tank 120 are matched with the control group 200 for use, so that the rain sewage discharged into the sedimentation tank is subjected to multi-time layered filtration, and meanwhile, different pumps are formed in each tank to correspond to the use scenes, thereby being beneficial to automatic sedimentation, storage and recycling of the rain sewage.

Considering that the rain sewage contains floaters such as plastic paper bags and the like and is convenient to carry out dredging subsequently, the depth of the gravel sedimentation tank 100 is two meters, compared with the traditional gravel sedimentation tank 100, the gravel sedimentation tank 100 with the depth of two meters is more convenient for an excavator to clean gravel sundries at the bottom of the tank, the top of one side of the gravel sedimentation tank 100 is provided with a water inlet 101, one side of the gravel sedimentation tank 100 away from the water inlet 101 is provided with a through groove communicated with the sand sedimentation tank 110, one side of the through groove, close to the gravel sedimentation tank 100, is provided with a filter screen 102, intercepts floaters through the filter screen 102, and avoids floaters from entering the sand sedimentation tank 110.

Considering that sludge is deposited at the bottom of the grit chamber 110 after the primarily filtered rain sewage enters the grit chamber 110, a sludge pump 111 for discharging the sludge to the grit chamber 100 is provided in the grit chamber 110, so that the sludge in the grit chamber 110 is collected into the grit chamber 100 to be concentrated.

In order to intensively process the settled sand at the bottom of the settling pond 120, the bottom section of the settling pond 120 is a shaped bottom surface of different heights, wherein the upper side of the bottom is close to the clean water pond 130, the lower side of the bottom is close to the grit chamber 110, the top of the lower side of the bottom of the settling pond 120 is provided with a fine sand pump 121 for discharging the bottom settled fine sand to the grit chamber 110, the top of the upper side of the bottom of the settling pond 120 is provided with a introducing pump 122 for discharging clean water into the clean water pond 130, and meanwhile, the settling pond is not treated in consideration of heavy rain, so that the filtered clean water is possibly polluted again, and therefore, the top of the settling pond 120 is provided with an overflow port 123 for discharging flood water, and when instant flood water is caused by continuous heavy rain weather, the rain water overflows from the overflow port 123 with a diameter of 1000 mm.

In view of the convenience of the subsequent use of clear water, therefore. The clear water tank 130 is internally provided with a discharge pump 131, the discharge outlet of the discharge pump 131 is provided with a discharge pipe 132 for discharging clear water out of the clear water tank 130, and a user can open the clear water discharge pump 131 at any time to use clear water as road dust suppression spray, greening water sprinkling and the like through the discharge pump 131, and can pump clear water to a reservoir or a water storage tank for storage and utilization.

In consideration of controlling different pumps in each tank to achieve the effect of automatic circulation of the sedimentation tank, the control unit 200 comprises an automatic control cabinet 201, a floating ball level gauge 202 and an ultrasonic sounding gauge 203, wherein the ultrasonic sounding gauge 203 is respectively fixed at the tops of the gravel sedimentation tank 100, the sand sedimentation tank 110 and the clear water tank 120, the floating ball level gauge 202 is respectively fixed at the tops of the clear water tank 120 and the clear water tank 130, the floating ball level gauge 202 and the ultrasonic sounding gauge 203 respectively transmit signals from signal output ends of the floating ball level gauge 202 and the ultrasonic sounding gauge 203 to signal input ends of the automatic control cabinet 201 after detecting threshold values, and the automatic control cabinet 201 receives the signals and controls the pumps in each tank to operate through the signal output ends.

It should be further noted that, the threshold value of the sediment height of the bottom sediment of the sediment tank 100 is 1/2 of the depth of the sediment tank 100, the ultrasonic depth finder 203 at the top of the sediment tank 100 detects the sediment position at the bottom of the sediment tank 100 by using the principle of sound wave detection, when the sediment height of the bottom sediment of the sediment tank 100 exceeds the threshold value, the ultrasonic depth finder 203 transmits the detected signal to the signal input end of the automatic control cabinet 201 from the signal output end, and the automatic control cabinet 201 inputs the signal to the alarm or the alarm in the automatic control cabinet 201 through the signal output end, so that the alarm or the installation network alarm sends the alarm information;

The depth of the grit chamber 110 is 3-4 meters, the threshold value of the sediment height at the bottom of the grit chamber 110 is 1/3 of the depth of the grit chamber 100, an ultrasonic depth finder 203 at the top of the grit chamber 110 detects the sediment position at the bottom of the grit chamber 110 by utilizing the principle of sound wave detection, when the sediment height at the bottom of the grit chamber 110 exceeds the threshold value, a detected signal is transmitted to the signal input end of an automatic control cabinet 201 from the signal output end, the automatic control cabinet 201 analyzes the signal through a PLC and triggers a contactor to open a sludge pump 111 through the PLC, and the sludge at the bottom of the grit chamber 100 is pumped;

The depth of the sedimentation tank 120 is 3-4 meters, the sediment height threshold value at the bottom of the sedimentation tank 120 is 1/5 of the depth of the sedimentation tank 120, the detection mode of an ultrasonic depth finder 203 at the top of the sand setting tank 110 is consistent with the detection and signal transmission modes of the ultrasonic depth finder 203 of the sand setting tank 110 and the gravel setting tank 100, and the difference is that an automatic control cabinet 201 opens a fine sand pump 121 through a PLC analysis signal and a PLC trigger contactor to pump the sludge at the bottom of the tank into the sand setting tank 110;

The position of the floating ball level device 202 at the top of the sedimentation tank 120 is higher than the water level 2/3 of the tank 120 and lower than the horizontal position of the overflow port 123, when the water level in the sedimentation tank 120 reaches the set water level of the floating ball level device 202, the floating ball level device 202 floats, a steel ball in the floating ball level device 202 rolls to touch a micro switch, the floating ball level device 202 sends a signal from a signal output end to a signal input end of the automatic control cabinet 201, the automatic control cabinet 201 analyzes the signal through a PLC, and after the turbid water is fully sedimented for 24 hours, the PLC triggers a contactor to open an introducing pump 122 to introduce clean water in the tank 120 into the clean water tank 130;

The position of the floating ball level device 202 at the top of the clean water tank 130 is 3/4 higher than the water level of the clean water tank 130, when the water level in the clear water tank 120 reaches the set water level of the floating ball level device 202, the floating ball level device 202 floats, and the outgoing signal is consistent with the mode of the floating ball level device 202 of the clear water tank 120, which is different in that the automatic control cabinet 201 analyzes the signal through the PLC and triggers the contactor to open the discharge pump 131 through the PLC so as to pump clean water to the reservoir or the water storage tank for storage and utilization.

In summary, the working principle of the scheme is as follows:

the method comprises the steps that the mountain rain sewage of the strip mine enters a gravel sedimentation tank 100 from a drainage ditch through a water inlet 101, large gravels and sundries in the rain sewage are precipitated under the action of self gravity, so that the rain sewage is precipitated for the first time, a filter screen 102 arranged at a water outlet of the gravel sedimentation tank 100 intercepts floaters, when the gravels at the bottom of the gravel sedimentation tank 100 exceed the depth (1/2 of the depth of the gravel sedimentation tank 100) set by an ultrasonic depth finder 203, an alarm in an automatic control cabinet 201 triggers an alarm or a network alarm is installed to send early warning information, and mine management personnel receive the alarm and then arrange to clear; the rainwater and sewage are filtered and precipitated by the grit chamber 100 and then enter the grit chamber 110 for secondary precipitation, when sand and stone at the bottom of the grit chamber 110 exceeds the setting depth of an ultrasonic depth finder 203 (1/3 of the depth of the grit chamber 110), a PLC triggers a contactor to open a sludge pump 111 to pump the sludge at the bottom of the grit chamber 110 into the grit chamber 100, the rainwater and sewage enter a clear pond 120 for tertiary precipitation after passing through the grit chamber 110, when the sediment at the bottom of the pond exceeds the setting depth (1/5 of the depth of the clear pond 120), the PLC triggers a fine sand pump 121 to pump the fine sand at the bottom of the clear pond 120 into the grit chamber 110, meanwhile, when instant flood is caused by continuous rainy weather, the rainwater and sewage overflows from a flood discharge port 123 at the top of the clear pond 120, large-flow muddy water is prevented from entering a clear pond 130, when the water level of the clear pond 120 reaches the floating ball level 202 (2/3 higher than the water level of the clear pond 120 and lower than the horizontal position of the overflow port 123 and is kept for 24 hours, so that clear water is fully pumped into the clear pump 122, when the water level of the clean water tank 130 reaches the set water level of the floating ball level device 202 (which is 3/4 higher than the water level of the clean water tank 130), the PLC in the automatic control cabinet 201 triggers the clean water discharge pump 131 to pump the clean water to the reservoir or the water storage tank for storage and utilization.

Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.

Therefore, the above description is not intended to limit the scope of the application, but rather should be construed in view of the appended claims.

Claims (8)

1. An automatic sedimentation circulating system for surface mine drainage comprises a sedimentation tank and is characterized in that a gravel sedimentation tank (100) for primary sedimentation, a sand sedimentation tank (110) for secondary sedimentation, a clear sedimentation tank (120) for tertiary sedimentation and a clear water tank (130) for storing clear water after sedimentation are sequentially arranged in the sedimentation tank, and a control group (200) for detecting the liquid level of each tank and controlling the operation of pumps in each tank is further arranged in the sedimentation tank.

2. The automatic sedimentation circulation system for surface mine drainage according to claim 1, wherein the depth of the gravel sedimentation tank (100) is two meters, a water inlet (101) is formed in the top of one side of the gravel sedimentation tank (100), a through groove communicated with the sand sedimentation tank (110) is formed in one side, away from the water inlet (101), of the gravel sedimentation tank (100), and a filter screen (102) for intercepting floaters is arranged on one side, close to the gravel sedimentation tank (100), of the through groove.

3. The automatic sedimentation circulation system for surface mine drainage according to claim 2, wherein a sludge pump (111) for discharging sludge to the gravel sedimentation tank (100) is provided in the sand sedimentation tank (110).

4. The automatic sedimentation circulation system for surface mine drainage according to claim 3, wherein the bottom section of the sedimentation tank (120) is a special-shaped bottom surface with different heights, the higher side of the bottom is close to the clean water tank (130), and the lower side of the bottom is close to the sand basin (110).

5. The automatic sedimentation circulation system for surface mine drainage according to claim 4, wherein an introduction pump (122) for discharging clean water into a clean water tank (130) is arranged at the top of the upper side of the bottom of the sedimentation tank (120), a fine sand pump (121) for discharging bottom sedimentation fine sand into a sand basin (110) is arranged at the top of the lower side of the bottom of the sedimentation tank (120), and an overflow port (123) for discharging flood is arranged at the top of the sedimentation tank (120).

6. The automatic sedimentation circulation system for surface mine drainage according to claim 5, wherein a discharge pump (131) is arranged in the clean water tank (130), and a discharge pipe (132) for discharging clean water out of the clean water tank (130) is arranged at a discharge port of the discharge pump (131).

7. The automatic sedimentation circulation system for surface mine drainage according to claim 1, wherein the control unit (200) comprises an automatic control cabinet (201), a floating ball level gauge (202) and an ultrasonic depth gauge (203), wherein the ultrasonic depth gauge (203) is respectively fixed at the tops of the gravel sedimentation tank (100), the sand sedimentation tank (110) and the clear sedimentation tank (120), and the floating ball level gauge (202) is respectively fixed at the tops of the clear sedimentation tank (120) and the clear water tank (130).

8. The automatic sedimentation circulation system for surface mine drainage according to claim 7, wherein the floating ball level gauge (202) and the ultrasonic depth gauge (203) respectively transmit signals from signal output ends of the floating ball level gauge (202) and the ultrasonic depth gauge (203) to signal input ends of an automatic control cabinet (201) after detecting threshold values, and the automatic control cabinet (201) receives the signals and controls a pump in each pool to operate through the signal output ends.