Turbid circulating water treatment system

Abstract

The utility model provides a turbid circulating water treatment system. The turbid circulating water treatment system comprises a water collecting tank, a sedimentation tank, a clean water tank, a sludge tank, a sludge conveying mechanism and a filter press, the water collecting tank is used for collecting turbid circulating water; turbid circulating water in the water collecting tank is discharged into the sedimentation tank through a lifting pump; the settling pond is used for settling impurities in turbid circulating water, and water in the settling pond overflows into the clean water pond; the sludge conveying mechanism conveys sludge at the bottom of the sedimentation tank into the sludge tank; sludge in the sludge tank is pumped into the filter press through a pump body; the filter press is used for dehydrating and pressing the sludge into cakes, and water subjected to filter pressing is conveyed into the sedimentation tank through a pipeline. Pumping the turbid circulating water into a sedimentation tank for sedimentation; in this way, the turbid circulating water can be effectively treated for secondary utilization, and waste of water resources is reduced; meanwhile, the water subjected to filter pressing is conveyed into the sedimentation tank through a pipeline for secondary treatment and sedimentation, so that the waste of water resources is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of turbid circulating water treatment, in particular to a turbid circulating water treatment system. Background Art

[0002] Steel slag is a by-product of the steelmaking process, and its output accounts for about 10% of steel production. The steel slag treatment process is a key factor that directly affects the utilization of steel slag. At present, the hot-simmering process with pressure has developed into the mainstream process technology in the field of steel slag treatment, and has been applied and promoted in more and more new or expanded projects. The hot-simmering process with pressure is mainly divided into two steps: roller crushing and hot-simmering. In the roller crushing process, the steel slag is first roller crushed. After the slag is spread, the comb roller of the rolling car rolls back and forth. During the rolling, water should be sprayed appropriately for cooling until the steel slag is crushed to a maximum particle size of less than 150mm. In the hot-simmering process, the hot-simmering slag pot containing the hot-crushed steel slag is hoisted into the hot-simmering pot, and the water spray valve is opened to spray water to cool down and generate steam, and the steam pressure in the hot-simmering pot is controlled to be stable at 0.3-0.35MPa.

[0003] During the process, water is consumed when it encounters high temperature during the crushing and hot-pressing processes. The water discharged during the spraying process in each area also contains a small amount of solid impurities such as lime and steelmaking raw materials. The hot-pressing and wet dust removal systems both generate a certain amount of wastewater. The turbid circulating water has a high temperature and a large content of suspended matter and cannot be directly recycled. Therefore, it is urgent to treat the wastewater. Utility Model Content

[0004] In view of the above problems existing in the prior art, the technical problem to be solved by the utility model is that the turbid circulating water has a high temperature, a large content of suspended matter, and cannot be directly recycled; therefore, it is urgent to treat the wastewater.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a turbid circulating water treatment system, comprising: a water collection tank, a sedimentation tank, a clear water tank, a sludge tank, a sludge conveying mechanism and a filter press; the water collection tank is used to collect turbid circulating water; and the turbid circulating water in the water collection tank is discharged into the sedimentation tank through a lifting pump; the sedimentation tank is used to precipitate impurities in the turbid circulating water, and the water in the sedimentation tank overflows into the clear water tank; the sludge conveying mechanism transports the sludge at the bottom of the sedimentation tank to the sludge tank; the sludge in the sludge tank is pumped into the filter press through a pump body; the filter press dehydrates the sludge and presses it into cakes, and the water after filtration is conveyed to the sedimentation tank through a pipeline.

[0006] In the utility model, turbid circulating water is discharged into a water collection tank, and then the turbid circulating water in the water collection tank is pumped into a sedimentation tank for sedimentation by a lifting pump, so as to separate the impurities in the turbid circulating water, so that the sludge is settled at the bottom of the sedimentation tank, and the clean water is located above the sedimentation tank, and then the clean water flows into the clean water tank by overflow, and then is sent to various areas for recycling by relevant water pumps; in this way, the turbid circulating water can be effectively treated and reused, thereby reducing the waste of water resources; at the same time, the sludge at the bottom of the sedimentation tank is transported to the sludge tank by the sludge conveying mechanism, so that the sludge in the sedimentation tank can be cleaned to avoid large-scale accumulation of sludge; the sludge in the sludge tank is then pumped into the filter press by the pump body, and the sludge is dehydrated and pressed into cakes by the filter press, and the water after filtration is transported to the sedimentation tank through a pipeline for secondary treatment and sedimentation, thereby further reducing the waste of water resources.

[0007] Preferably, the sludge conveying mechanism includes: a sludge conveying channel, a pushing component, a partition component, a scraper and a driving component; the sludge conveying channel is arranged horizontally, one end of the sludge conveying channel in the length direction passes through the sedimentation tank and extends into the sedimentation tank; the other end of the sludge conveying channel extends into the sludge tank; the upper end surface of the sludge conveying channel is arranged flush with the bottom surface of the sedimentation tank; and the upper end surface of the sludge conveying channel located in the sedimentation tank is provided with a sludge inlet; the pushing component can push the sludge in the sludge conveying channel to move toward the sludge tank; the partition component can control the on-off of the end of the sludge conveying channel located outside the sedimentation tank; the scraper is slidably installed on the bottom surface of the sedimentation tank to push the sludge at the bottom of the sedimentation tank toward the sludge inlet and block the sludge inlet; the driving component can drive the scraper to move back and forth. In this way, the sludge at the bottom of the sedimentation tank can be effectively cleaned and the sludge can be transported to the sludge tank without affecting the normal operation of the sludge tank.

[0008] Preferably, the pushing assembly includes: a rotating shaft, a spiral blade and a first motor; the rotating shaft is arranged along the length direction of the mud conveying channel, and the rotating shaft is rotatably installed in the mud conveying channel; the spiral blade is installed on the rotating shaft; the first motor can drive the rotating shaft to rotate. The first motor drives the rotating shaft to rotate, and the rotating shaft drives the spiral blade to rotate, and the spiral blade pushes the sludge in the mud conveying channel to move toward the sludge pool.

[0009] Preferably, the driving assembly includes: a screw, a nut seat, and a second motor; the screw is rotatably mounted on the sedimentation tank, the nut seat is fixedly mounted on the scraper, and the nut seat is connected to the screw through a ball screw nut pair; the second motor can drive the screw to rotate. The motor drives the screw to rotate, the screw drives the nut seat to move along the length direction of the screw, and the nut seat drives the scraper to reciprocate; specifically, the scraper can be driven to reciprocate by controlling the forward and reverse rotation of the motor.

[0010] Preferably, the partition assembly comprises: a partition and a telescopic member; one end of the partition slides through the mud conveying channel, and the partition cooperates with the mud conveying channel, and the telescopic member can push the partition to move. The telescopic member drives the partition to slide, thereby controlling the opening and closing of the mud conveying channel.

[0011] Preferably, the upper end surface of the scraper away from the mud conveying channel is tilted downward, so that when the scraper retreats, the mud at the rear can move to the front through the inclined surface.

[0012] Compared with the prior art, the utility model has at least the following advantages:

[0013] 1. In the utility model, the turbid circulating water is discharged into the water collection tank, and then the turbid circulating water in the water collection tank is pumped into the sedimentation tank for sedimentation by a lifting pump, so as to separate the impurities in the turbid circulating water, so that the sludge is settled at the bottom of the sedimentation tank, and the clean water is located above the sedimentation tank, and then the clean water flows into the clean water tank by overflow, and then is sent to various areas for recycling by relevant water pumps; in this way, the turbid circulating water can be effectively treated and reused, thereby reducing the waste of water resources; at the same time, the sludge at the bottom of the sedimentation tank is transported to the sludge tank by the sludge conveying mechanism, so that the sludge in the sedimentation tank can be cleaned to avoid large-scale accumulation of sludge; the sludge in the sludge tank is then pumped into the filter press by the pump body, and the sludge is dehydrated and pressed into cakes by the filter press, and the water after filtration is transported to the sedimentation tank through a pipeline for secondary treatment and sedimentation, thereby further reducing the waste of water resources.

[0014] 2. In the utility model, when a certain amount of sludge is accumulated on the bottom of the sedimentation tank, the driving component is controlled to move, and the driving component drives the scraper to move toward the mud conveying channel, so as to push the sludge at the bottom of the sedimentation tank into the mud conveying channel through the mud inlet. At this time, the partition component blocks the mud conveying channel at one end outside the sedimentation tank, thereby effectively preventing the water in the sedimentation tank from flowing out through the mud conveying channel at this time; when the sludge enters the mud conveying channel, the scraper continues to move toward the mud conveying channel, so that the scraper moves to the top of the mud conveying channel, The bottom end of the scraper abuts against the upper end surface of the mud conveying channel to block the mud inlet on the upper end surface of the mud conveying channel, thereby effectively preventing water in the sedimentation tank from entering the mud conveying channel at this time; when the scraper blocks the mud inlet, the partition component is controlled to move, and the partition component stops blocking the mud conveying channel; then the pushing component is controlled to move, and the pushing component pushes the sludge in the mud conveying channel toward the sludge tank, so as to effectively clean the sludge at the bottom of the sedimentation tank and transport the sludge to the sludge tank without affecting the normal operation of the sludge tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0016] Figure 1 This is a schematic diagram of a turbid water treatment system provided in an embodiment of the present invention.

[0017] Figure 2 A three-dimensional diagram of a sedimentation tank and a sludge conveying mechanism provided in an embodiment of the utility model.

[0018] Figure 3 A top view of a sedimentation tank and a sludge conveying mechanism provided in an embodiment of the utility model.

[0019] Figure 4 This is a rear view of the sedimentation tank and sludge conveying mechanism provided in the embodiment of the utility model.

[0020] Figure markings: 1-water collection tank, 2-sedimentation tank, 3-clean water tank, 4-sludge tank, 5-sludge conveying mechanism, 51-sludge conveying channel, 511-sludge inlet, 52-pushing assembly, 521-rotating shaft, 522-spiral blade, 523-first motor, 53-partition assembly, 531-partition, 532-telescopic member, 54-scraper, 55-driving assembly, 551-screw, 552-nut seat, 553-second motor, 6-filter press, 7-lifting pump, 8-pump body. DETAILED DESCRIPTION

[0021] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0022] In the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-Figure 4 The utility model provides an embodiment: a turbid circulating water treatment system, comprising: a water collecting tank 1, a sedimentation tank 2, a clear water tank 3, a sludge tank 4, a sludge conveying mechanism 5 and a filter press 6; the water collecting tank 1 is used to collect turbid circulating water; and the turbid circulating water in the water collecting tank 1 is discharged into the sedimentation tank 2 through a lifting pump 7; the sedimentation tank 2 is used to precipitate impurities in the turbid circulating water, and the water in the sedimentation tank 2 overflows into the clear water tank 3; the sludge conveying mechanism 5 transports the sludge at the bottom of the sedimentation tank 2 to the sludge tank 4; the sludge in the sludge tank 4 is pumped into the filter press 6 through a pump body 8; the filter press 6 dehydrates the sludge and presses it into cakes, and the water after filtration is conveyed to the sedimentation tank 2 through a pipeline.

[0025] During the specific implementation, the turbid circulating water is discharged into the water collection tank 1, and then the turbid circulating water in the water collection tank 1 is pumped to the sedimentation tank 2 for sedimentation by the lifting pump 7, so as to separate the impurities in the turbid circulating water, so that the sludge is settled at the bottom of the sedimentation tank 2, and the clean water is located above the sedimentation tank 2, and then the clean water flows into the clean water tank 3 by overflow, and then is sent to various areas for recycling by relevant water pumps; in this way, the turbid circulating water can be effectively treated and reused, thereby reducing the waste of water resources; at the same time, the sludge at the bottom of the sedimentation tank 2 is transported to the sludge tank 4 by the sludge conveying mechanism 5, so that the sludge in the sedimentation tank 2 can be cleaned to avoid large-scale accumulation of sludge; the sludge in the sludge tank 4 is then pumped into the filter press 6 by the pump body 8, and the sludge is dehydrated and pressed into cakes by the filter press 6, and the water after filtration is transported to the sedimentation tank 2 through a pipeline for secondary treatment and precipitation, thereby further reducing the waste of water resources.

[0026] See also Figure 2-Figure 4In other embodiments, the sludge conveying mechanism 5 includes: a sludge conveying channel 51, a pushing component 52, a partition component 53, a scraper 64 and a driving component 55; the sludge conveying channel 51 is horizontally arranged, and one end of the sludge conveying channel 51 in the length direction passes through the sedimentation tank 2 and extends into the sedimentation tank 2; the other end of the sludge conveying channel 51 extends into the sludge tank 4; the upper end surface of the sludge conveying channel 51 is flush with the bottom surface of the sedimentation tank 2; and the upper end surface of the sludge conveying channel 51 located in the sedimentation tank 2 is provided with a sludge inlet 511; the pushing component 52 can push the sludge conveying channel 51 to move the sludge conveying channel 51 to the sedimentation tank 2; The sludge in the mud channel 51 moves toward the sludge tank 4; the partition component 53 can control the on-off of the mud delivery channel 51 at one end outside the sedimentation tank 2; the scraper 64 is slidably installed on the bottom surface of the sedimentation tank 2 to push the sludge at the bottom of the sedimentation tank 2 toward the mud inlet 511 and block the mud inlet 511; the driving component 55 can drive the scraper 64 to move back and forth; further, the upper end surface of the scraper 64 is tilted downward away from the side of the mud delivery channel 51; so that when the scraper 64 retreats, the sludge at the rear can move to the front through the inclined surface.

[0027] In specific implementation, when a certain amount of sludge is accumulated on the bottom of the sedimentation tank 2, the driving component 55 is controlled to operate, and the driving component 55 drives the scraper 64 to move toward the sludge conveying channel 51, so as to push the sludge at the bottom of the sedimentation tank 2 into the sludge conveying channel 51 through the sludge inlet 511. At this time, the partition component 53 partitions the sludge conveying channel 51 at one end outside the sedimentation tank 2, thereby effectively preventing the water in the sedimentation tank 2 from flowing out through the sludge conveying channel 51 at this time; when the sludge enters the sludge conveying channel 51, the scraper 64 continues to move toward the sludge conveying channel 51, so that the scraper 64 moves to the top of the sludge conveying channel 51, and the scraper The bottom end of 64 abuts against the upper end surface of the mud conveying channel 51, thereby blocking the mud inlet 511 on the upper end surface of the mud conveying channel 51, thereby effectively preventing the water in the sedimentation tank 2 from entering the mud conveying channel 51 at this time; when the scraper 64 blocks the mud inlet 511, the partition component 53 is controlled to operate, and the partition component 53 stops blocking the mud conveying channel 51; then the pushing component 52 is controlled to operate, and the pushing component 52 pushes the sludge in the mud conveying channel 51 to move toward the sludge tank 4, so as to effectively clean the sludge at the bottom of the sedimentation tank 2 and transport the sludge to the sludge tank 4 without affecting the normal operation of the sludge tank 4.

[0028] See also Figure 2-Figure 4In other embodiments, the pushing assembly 52 includes: a rotating shaft 521, a spiral blade 522 and a first motor 523; the rotating shaft 521 is arranged along the length direction of the mud conveying channel 51, and the rotating shaft 521 is rotatably installed in the mud conveying channel 51; the spiral blade 522 is installed on the rotating shaft 521; and the first motor 523 can drive the rotating shaft 521 to rotate. In specific implementation, the first motor 523 is actuated, the first motor 523 drives the rotating shaft 521 to rotate, the rotating shaft 521 drives the spiral blade 522 to rotate, and the spiral blade 522 pushes the sludge in the mud conveying channel 51 to move toward the sludge pool 4.

[0029] See also Figure 2-Figure 4 In other embodiments, the driving assembly 55 includes: a screw 551, a nut seat 552 and a second motor 553; the screw 551 is rotatably mounted on the sedimentation tank 2, the nut seat 552 is fixedly mounted on the scraper 64, and the nut seat 552 is connected to the screw 551 through a ball screw 551 nut pair; the second motor 553 can drive the screw 551 to rotate. In specific implementation, the motor is in motion, the motor drives the screw 551 to rotate, the screw 551 drives the nut seat 552 to move along the length direction of the screw 551, and the nut seat 552 drives the scraper 64 to reciprocate; specifically, the scraper 64 can be driven to reciprocate by controlling the forward and reverse rotation of the motor.

[0030] See also Figure 2-Figure 4 In another embodiment, the partition assembly 53 includes: a partition 531 and a telescopic member 532; one end of the partition 531 slides through the mud conveying channel 51, and the partition 531 cooperates with the mud conveying channel 51, and the telescopic member 532 can push the partition 531 to move. In specific implementation, the telescopic member 532 can be a structure such as a cylinder, a hydraulic cylinder, and an electric push rod; the telescopic member 532 is controlled to move, and the telescopic member 532 drives the partition 531 to slide, thereby controlling the opening and closing of the mud conveying channel 51.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A turbid water treatment system, characterized in that: include: A water collecting tank, a sedimentation tank, a clear water tank, a sludge tank, a sludge conveying mechanism and a filter press; the water collecting tank is used to collect turbid circulating water; and the turbid circulating water in the water collecting tank is discharged into the sedimentation tank through a lifting pump; the sedimentation tank is used to precipitate impurities in the turbid circulating water, and the water in the sedimentation tank overflows into the clear water tank; the sludge conveying mechanism transports the sludge at the bottom of the sedimentation tank to the sludge tank; the sludge in the sludge tank is pumped into the filter press through a pump body; the filter press dehydrates the sludge and presses it into cakes, and the water after filtration is conveyed to the sedimentation tank through a pipeline.

2. The turbid water treatment system according to claim 1, characterized in that: The sludge conveying mechanism includes: a sludge conveying channel, a pushing component, a partition component, a scraper and a driving component; the sludge conveying channel is horizontally arranged, and one end of the sludge conveying channel in the length direction passes through the sedimentation tank and extends into the sedimentation tank; the other end of the sludge conveying channel extends into the sludge tank; the upper end surface of the sludge conveying channel is flush with the bottom surface of the sedimentation tank; and a sludge inlet is provided on the upper end surface of the sludge conveying channel located in the sedimentation tank; the pushing component can push the sludge in the sludge conveying channel to move toward the sludge tank; the partition component can control the on-off of one end of the sludge conveying channel located outside the sedimentation tank; the scraper is slidably installed on the bottom surface of the sedimentation tank to push the sludge at the bottom of the sedimentation tank toward the sludge inlet and block the sludge inlet; the driving component can drive the scraper to move back and forth.

3. The turbid water treatment system according to claim 2, characterized in that: The pushing assembly includes: a rotating shaft, a spiral blade and a first motor; the rotating shaft is arranged along the length direction of the mud conveying channel, and the rotating shaft is rotatably installed in the mud conveying channel; the spiral blade is installed on the rotating shaft; the first motor can drive the rotating shaft to rotate.

4. The turbid water treatment system according to claim 2, characterized in that: The driving assembly includes: a screw, a nut seat and a second motor; the screw is rotatably mounted on the sedimentation tank, the nut seat is fixedly mounted on the scraper, and the nut seat is connected to the screw through a ball screw nut pair; the second motor can drive the screw to rotate.

5. The turbid water treatment system according to claim 2, characterized in that: The partition assembly comprises: a partition and a telescopic member; one end of the partition slides through the mud conveying channel, and the partition cooperates with the mud conveying channel, and the telescopic member can push the partition to move.

6. The turbid water treatment system according to claim 2, characterized in that: The upper end surface of the scraper is arranged to be tilted downwardly on a side away from the mud conveying channel.

Images