A water purifying device for treating stone coal deslagging wastewater

Abstract

The application discloses a water purifying device for stone coal deslagging wastewater treatment, and relates to the technical field of stone coal deslagging wastewater treatment. The existing device has the problems of poor sedimentation effect caused by flow disturbance when flocculation and sedimentation are simultaneously performed, high requirements for the volume of a sedimentation tank and reaction time, and high construction cost. The application simultaneously performs flocculation and sedimentation, reduces the residence time of intermediate links and material transfer processes, accelerates the overall wastewater treatment rhythm, can treat more sewage in unit time, optimizes the hydraulic retention time of the whole treatment process, can reduce the required tank volume for treating the same amount of sewage, and the smaller sedimentation tank not only reduces the capital investment, but also is provided with a special sedimentation flow channel, so that the influence of water flow turbulence caused by flocculation on sedimentation can be minimized, and the particle suspension and back mixing caused by turbulence can be reduced.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology for slag removal from stone and coal, specifically a water purification device for treating wastewater from slag removal from stone and coal. Background Technology

[0002] The flushing water in the hydraulic slag removal system for stone and coal is recycled. After being reused multiple times, the suspended solids in the flushing water become increasingly high and cannot settle in a short time. As a result, the hydraulic slag removal system for stone and coal operates poorly even without wastewater discharge, and the flushing water outlet equipment suffers severe wear and has many defects.

[0003] Currently, wastewater treatment for stone and coal slag removal typically employs a combination of flocculation and sedimentation. After adding flocculant, the wastewater inside the tank needs to be stirred. If sedimentation occurs simultaneously with stirring, the water flow becomes turbulent due to the stirring action, making it difficult for solid impurities to settle downwards. This results in poor sedimentation and purification. However, if sedimentation occurs after stirring, it places high demands on the volume of the sedimentation tank and the reaction time, leading to high construction costs and a waste of time and space.

[0004] To address the aforementioned problems, a water purification device for treating wastewater from stone and coal slag removal is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a water purification device for treating wastewater from stone and coal slag removal, which solves the problems of existing devices in the background art that involve simultaneous flocculation and sedimentation with poor sedimentation effect, or flocculation followed by sedimentation, which places high demands on the volume of the sedimentation tank and the reaction time, resulting in high construction costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a water purification device for treating wastewater from stone and coal slag removal, comprising an outer cylinder of the treatment device, an annular bottom plate fixedly connected to the bottom of the outer cylinder, a sedimentation treatment assembly installed inside the outer cylinder, the sedimentation treatment assembly including a sedimentation cylinder nested inside the outer cylinder of the treatment device, and the sedimentation cylinder being fixedly connected to the annular bottom plate, a drainage cylinder fixedly connected to the top of the sedimentation cylinder, and a drainage through hole opened on the side of the drainage cylinder, a flow guide ring fixedly connected to the inner wall of the drainage cylinder, an anti-turbulence partition plate fixedly connected to the top of the drainage cylinder, a flow guide plate fixedly connected to the inner wall of the anti-turbulence partition plate, and a stirring inner cylinder fixedly connected to the side of the flow guide plate, and a sedimentation water storage chamber further provided inside the outer cylinder of the treatment device, the sedimentation water storage chamber being composed of the anti-turbulence partition plate, the drainage through hole, the sedimentation cylinder, the annular bottom plate and the outer cylinder of the treatment device, the inner cavity of the drainage cylinder being connected to the sedimentation water storage chamber through the drainage through hole;

[0007] The top of the outer cylinder of the treatment device is fixedly connected to an enhanced filtration zone, and the top of the enhanced filtration zone is fixedly connected to a purified water chamber. The top of the purified water chamber is fixedly connected to a water outlet pipe. The bottom of the inner cylinder of the mixing device is fixedly connected to a wastewater inlet pipe, and the end of the wastewater inlet pipe is fixedly connected to a pipe mixer. The top of the pipe mixer is fixedly connected to a flocculant addition tank, and the end of the pipe mixer away from the wastewater inlet pipe is fixedly connected to a liquid pump.

[0008] The stirring cylinder is equipped with a stirring assembly, which is used to stir the wastewater.

[0009] A rotary switch assembly is fitted around the drain hole, and the rotary switch assembly is used to control the opening and closing of the drain hole.

[0010] Preferably, a sludge collection hopper is fixedly connected to the bottom of the settling cylinder, and a sludge discharge pipe is fixedly connected to the bottom of the sludge collection hopper, with a sludge pump installed at the end of the sludge discharge pipe.

[0011] Preferably, the guide vanes are arranged in a ring array around the outside of the stirring inner cylinder, and the guide vanes are composed of an inclined portion and a vertical portion integrally disposed at the bottom of the bent portion.

[0012] Preferably, the drainage holes are arranged in three rows at equal intervals around the side of the drainage cylinder, and the guide ring is arranged to gradually slope downward from the outside to the inside, with the guide ring and each row of drainage holes spaced apart.

[0013] Preferably, the stirring inner cylinder is coaxially disposed inside the anti-turbulence partition plate, and the inner cavity of the stirring inner cylinder is connected to the inner cavity of the anti-turbulence partition plate. The inner cavities of the anti-turbulence partition plate, the drainage cylinder, and the settling cylinder are all connected.

[0014] Preferably, the stirring assembly includes a second servo motor, which is fixedly connected to the top of the water purification chamber. The output end of the second servo motor is fixedly connected to a rotating shaft, and a bearing is interference-fitted to the outside of the rotating shaft, with the bearing nested inside the water purification chamber.

[0015] Preferably, the outer wall of the rotating shaft is fixedly connected with rising blades, and the rising blades are set at equal angles with respect to the outer wall of the rotating shaft. A stirring rod is provided at the bottom of the rising blades, and the stirring rod is uniformly fixed to the outer wall of the rotating shaft.

[0016] Preferably, the rotary switch assembly includes a flow control cylinder, which is nested outside the drain cylinder, and the flow control cylinder and the drain cylinder are in clearance fit. The flow control cylinder has a drainage hole on its side, and the drainage hole corresponds one-to-one with the drain hole.

[0017] Preferably, a serrated ring is fixedly connected to the outer wall of the flow control cylinder, and a gear is engaged on the side of the serrated ring. A first servo motor is installed at the bottom of the gear, and the first servo motor is fixedly connected to the inner wall of the outer cylinder of the processing device.

[0018] Preferably, the bottom of the flow control cylinder is fixedly connected to a limiting rotating ring, and the outside of the flow guide plate is rotatably connected to a limiting groove ring. The limiting groove ring is sleeved on the outer wall of the settling cylinder, and the limiting groove ring and the settling cylinder are fixedly connected.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The present invention provides a water purification device for treating wastewater from stone and coal slag removal, which simultaneously carries out flocculation and sedimentation, reducing the residence time and material transfer process in intermediate links, accelerating the overall wastewater treatment pace, and enabling the treatment of more wastewater per unit time. The hydraulic residence time of the entire treatment process is optimized, and the required tank volume can be reduced to treat the same amount of wastewater. The smaller sedimentation tank not only reduces infrastructure investment, but also reduces energy consumption, chemical consumption and equipment wear costs in daily operation and maintenance.

[0021] 2. The present invention provides a water purification device for treating wastewater from stone and coal slag removal, which is equipped with a special sedimentation channel, which can minimize the impact of water flow turbulence caused by flocculation on sedimentation. The sedimentation zone can always maintain an ideal laminar flow state, allowing sediment particles of different sizes to settle uniformly and orderly according to their own gravity, reducing particle suspension and back mixing caused by turbulence. Attached Figure Description

[0022] Figure 1 This is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the entire invention;

[0024] Figure 3 This is a cross-sectional structural diagram of the sedimentation treatment component of the present invention;

[0025] Figure 4 This is a schematic cross-sectional view of the water storage chamber portion after settling according to the present invention.

[0026] Figure 5 This is an exploded view of the rotary switch assembly of the present invention;

[0027] Figure 6 This is a schematic diagram of the installation state of the rotary switch assembly of the present invention;

[0028] Figure 7 This is a schematic diagram of the stirring assembly of the present invention.

[0029] In the diagram: 1. Outer cylinder of the treatment unit; 2. Sedimentation treatment assembly; 3. Rotary switch assembly; 4. Enhanced filtration zone; 5. Clean water chamber; 6. Agitator assembly; 7. Outlet pipe; 8. Wastewater inlet pipe; 9. Pipeline mixer; 10. Flocculant addition tank; 11. Liquid pump; 12. Annular bottom plate; 201. Sedimentation cylinder; 202. Drainage cylinder; 203. Drainage through hole; 204. Guide ring; 205. Anti-turbulence partition plate; 206. Flow guide plate ; 207. Inner mixing cylinder; 208. Settling water storage chamber; 209. Sludge collection hopper; 210. Sludge discharge pipe; 211. Sludge pump; 301. Flow control cylinder; 302. Drainage flow hole; 303. Serrated ring; 304. Gear; 305. First servo motor; 306. Limiting rotating ring; 307. Limiting groove ring; 601. Second servo motor; 602. Bearing; 603. Rotating shaft; 604. Flow riser blade; 605. Stirring rod. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0032] Combination Figures 1-7 The present invention discloses a water purification device for treating wastewater from stone and coal slag removal, comprising an outer cylinder 1, an annular bottom plate 12 fixedly connected to the bottom of the outer cylinder 1, a sedimentation treatment assembly 2 installed inside the outer cylinder 1, the sedimentation treatment assembly 2 including a sedimentation cylinder 201 nested inside the outer cylinder 1, and the sedimentation cylinder 201 fixedly connected to the annular bottom plate 12, a drainage cylinder 202 fixedly connected to the top of the sedimentation cylinder 201, and a drainage through hole 203 opened on the side of the drainage cylinder 202, the inner wall of the drainage cylinder 202 being fixedly connected to... The device has a flow guide ring 204, and a turbulence prevention partition plate 205 is fixedly connected to the top of the drainage cylinder 202. A flow guide plate 206 is fixedly connected to the inner wall of the turbulence prevention partition plate 205, and a stirring inner cylinder 207 is fixedly connected to the side of the flow guide plate 206. The outer cylinder 1 of the treatment device is also provided with a sedimentation water storage chamber 208. The sedimentation water storage chamber 208 is composed of the turbulence prevention partition plate 205, a drainage through hole 203, a sedimentation cylinder 201, an annular bottom plate 12 and the outer cylinder 1 of the treatment device. The inner cavity of the drainage cylinder 202 is connected to the sedimentation water storage chamber 208 through the drainage through hole 203.

[0033] An enhanced filtration zone 4 is fixedly connected to the top of the outer cylinder 1 of the treatment device, and a purified water chamber 5 is fixedly connected to the top of the enhanced filtration zone 4. An outlet pipe 7 is fixedly connected to the top of the purified water chamber 5. A wastewater inlet pipe 8 is fixedly connected to the bottom of the inner mixing cylinder 207, and a pipe mixer 9 is fixedly connected to the end of the wastewater inlet pipe 8. A flocculant addition tank 10 is fixedly connected to the top of the pipe mixer 9, and a pump 11 is fixedly connected to the end of the pipe mixer 9 furthest from the wastewater inlet pipe 8. Under the pumping action of the pump 11, the wastewater from the removal of slag from the stone and coal first enters the pipe mixer 9. Inside, the valve of the flocculant addition tank 10 is opened, and the flocculant inside the flocculant addition tank 10 enters the interior of the pipe mixer 9. Inside the pipe mixer 9, it mixes with the wastewater and then enters the interior of the mixing inner cylinder 207 through the wastewater inlet pipe 8. After sedimentation and separation inside the sedimentation treatment component 2, the water is located inside the sedimentation storage chamber 208. Under pressure, it passes through the enhanced filtration zone 4 from the top of the sedimentation storage chamber 208. The purified water finally enters the interior of the clean water chamber 5 and flows out of this purification device from the outlet pipe 7.

[0034] The bottom of the settling cylinder 201 is fixedly connected to a sludge hopper 209, and the bottom of the sludge hopper 209 is fixedly connected to a sludge discharge pipe 210. A sludge pump 211 is installed at the end of the sludge discharge pipe 210. The settled solids are located inside the settling cylinder 201. After the settling and purification is completed, the sludge pump 211 is started, and the coal slime sediment can be led along the sludge hopper 209 and through the sludge discharge pipe 210 to the subsequent belt filter press for filter pressing. The filter press wastewater is then returned to this purification device for recycling.

[0035] The guide vanes 206 are arranged in a ring array around the outside of the stirring inner cylinder 207. The guide vanes 206 are composed of an inclined part and a vertical part integrated into the bottom of the bent part. The drainage holes 203 are arranged in three rows at equal intervals around the side of the drainage cylinder 202. The guide rings 204 are arranged to gradually slope downward from the outside to the inside, and the guide rings 204 are spaced apart from each row of drainage holes 203. The stirring inner cylinder 207 is coaxially arranged inside the anti-turbulence partition plate 205, and the inner cavity of the stirring inner cylinder 207 is connected to the inner cavity of the anti-turbulence partition plate 205. The inner cavity of the anti-turbulence partition plate 205, the inner cavity of the drainage cylinder 202, and the inner cavity of the settling cylinder 201 are all connected.

[0036] After the wastewater and flocculant undergo flocculation reaction inside the mixing inner cylinder 207, the water above will overflow from the top of the mixing inner cylinder 207 due to the continuous water intake at the bottom. The guide plate 206 has a guiding effect on the overflowing water, making the originally turbulent water flow into a downward flow, creating good conditions for the subsequent sedimentation process. Then it flows through the inner cavity of the drain cylinder 202. The guide ring 204 causes the water flow to rub against the plate surface, consuming the kinetic energy of the water flow and gradually slowing down the flow rate. The reduced flow rate gives the suspended solid particles more time to settle to the bottom of the pool under the action of gravity, which is especially beneficial to the sedimentation and separation of small particles. At the same time, the inclined guide plate surface can allow some small solid particles to attach. Once the particles come into contact with the guide plate, they are like finding a foothold and will slide down the plate surface and converge into the interior of the sedimentation cylinder 201, avoiding being carried away by the water flow again, which indirectly accelerates the sedimentation efficiency. Then, under the action of pressure, the water flows out from each drain hole 203 and enters the interior of the sedimentation storage chamber 208.

[0037] As water overflows from the mixing inner cylinder 207 and eventually enters the settling and storage chamber 208, it flows upward from the settling and storage chamber 208 to the enhanced filtration zone 4 for filtration. During this process, the water flow path is U-shaped. Due to the presence of the bend, the water flow streamline is forced to bend and lengthen, and the actual flow velocity of the water is significantly reduced. The lower the flow velocity, the more time the particles have to settle under the action of gravity, and the easier it is for them to settle. When the water flow turns at the bottom, centrifugal force is generated. The water flow carries the particles as it turns. Due to inertia, larger particles will be subjected to a greater centrifugal force than water and will be thrown against the cylinder wall of the settling cylinder 201, which further improves the separation effect of sediment and water.

[0038] A stirring assembly 6 is installed inside the stirring inner cylinder 207. The stirring assembly 6 is used to stir the wastewater. The stirring assembly 6 includes a second servo motor 601, which is fixedly connected to the top of the water purification chamber 5. A rotating shaft 603 is fixedly connected to the output end of the second servo motor 601. A bearing 602 is interference-fitted to the outside of the rotating shaft 603 and is nested inside the water purification chamber 5. A riser blade 604 is fixedly connected to the outer wall of the rotating shaft 603 and is set at an equal angle to the outer wall of the rotating shaft 603. A stirring rod 605 is provided at the bottom of the riser blade 604 and is evenly fixed to the outer wall of the rotating shaft 603.

[0039] The output of the second servo motor 601 rotates inside the mixing cylinder 207 via the rotating shaft 603, simultaneously carrying the riser blades 604 and the stirring rod 605. The stirring rod 605 is used to stir inside the mixing cylinder 207, so that the wastewater and flocculant inside are fully mixed to improve the flocculation efficiency. At the same time, the rotating riser blades 604 have an upward lifting effect on the water inside the mixing cylinder 207, so that the water inside gradually overflows from the top.

[0040] A rotary switch assembly 3 is fitted around the drain through hole 203. The rotary switch assembly 3 is used to control the opening and closing of the drain through hole 203. The rotary switch assembly 3 includes a flow control cylinder 301, which is nested around the drain cylinder 202 with a clearance fit. Drainage holes 302 are opened on the side of the flow control cylinder 301, and the drainage holes 302 correspond one-to-one with the drain through holes 203. The outer wall of the flow control cylinder 301 is fixedly connected with serrations. A ring 303 is formed, and a gear 304 meshes with the side of the serrated ring 303. A first servo motor 305 is installed at the bottom of the gear 304, and the first servo motor 305 is fixedly connected to the inner wall of the outer cylinder 1 of the processing device. A limiting rotating ring 306 is fixedly connected to the bottom of the flow control cylinder 301, and a limiting groove ring 307 is rotatably connected to the outside of the flow guide plate 206. The limiting groove ring 307 is sleeved on the outer wall of the settling cylinder 201, and the limiting groove ring 307 is fixedly connected to the settling cylinder 201.

[0041] During the sedimentation and purification process, the drain hole 302 and the drain through hole 203 are aligned. At this time, the water after sedimentation and separation can flow outward through the drain through hole 203 and the drain hole 302 into the interior of the sedimentation storage chamber 208. When the entire sedimentation and purification process is completed and the sediment is discharged, the first servo motor 305 can be started. Its output end drives the gear 304 to rotate, which in turn drives the flow control cylinder 301 to rotate through the sawtooth ring 303, so that the drain hole 302 and the drain through hole 203 are misaligned. The flow control cylinder 301 is used to block and seal the drain through hole 203, so that the water that has been separated by sedimentation in the sedimentation storage chamber 208 will not flow back into the sludge hopper 209 and mix with the sediment.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water purification device for treating wastewater from stone and coal slag removal, characterized in that: The device includes an outer cylinder (1) of a processing device, with an annular base plate (12) fixedly connected to the bottom of the outer cylinder (1). A sedimentation processing assembly (2) is installed inside the outer cylinder (1). The sedimentation processing assembly (2) includes a sedimentation cylinder (201), which is nested inside the outer cylinder (1) of the processing device and is fixedly connected to the annular base plate (12). A drainage cylinder (202) is fixedly connected to the top of the sedimentation cylinder (201), and a drainage through hole (203) is provided on the side of the drainage cylinder (202). A guide ring (204) is fixedly connected to the inner wall of the drainage cylinder (202). The top of the drainage cylinder (202) is fixedly connected to an anti-turbulence partition plate (205), and the inner wall of the anti-turbulence partition plate (205) is fixedly connected to a guide plate (206), and the side of the guide plate (206) is fixedly connected to a stirring inner cylinder (207). The outer cylinder (1) of the treatment device is also provided with a settling water storage chamber (208), and the settling water storage chamber (208) is composed of an anti-turbulence partition plate (205), a drainage through hole (203), a settling cylinder (201), an annular bottom plate (12) and the outer cylinder (1) of the treatment device. The inner cavity of the drainage cylinder (202) is connected to the settling water storage chamber (208) through the drainage through hole (203). The top of the outer cylinder (1) of the treatment device is fixedly connected to an enhanced filtration zone (4), and the top of the enhanced filtration zone (4) is fixedly connected to a water purification chamber (5). The top of the water purification chamber (5) is fixedly connected to a water outlet pipe (7). The bottom of the stirring inner cylinder (207) is fixedly connected to a wastewater inlet pipe (8), and the end of the wastewater inlet pipe (8) is fixedly connected to a pipe mixer (9). The top of the pipe mixer (9) is fixedly connected to a flocculant addition tank (10), and the end of the pipe mixer (9) away from the wastewater inlet pipe (8) is fixedly connected to a liquid pump (11). The stirring inner cylinder (207) is equipped with a stirring assembly (6), which is used to stir the wastewater; A rotary switch assembly (3) is sleeved on the outside of the drainage through hole (203), and the rotary switch assembly (3) is used to control the opening and closing of the drainage through hole (203); The guide vanes (206) are arranged in a ring array around the outside of the stirring inner cylinder (207), and the guide vanes (206) are composed of an inclined part and a vertical part integrally provided at the bottom of the bent part; The drainage through holes (203) are arranged in three rows at equal intervals on the side of the drainage cylinder (202). The guide ring (204) is arranged to gradually slope downward from the outside to the inside, and the guide ring (204) and each row of drainage through holes (203) are spaced apart.

2. The water purification device for treating wastewater from stone and coal slag removal according to claim 1, characterized in that: The bottom of the settling cylinder (201) is fixedly connected to a sludge collection hopper (209), and the bottom of the sludge collection hopper (209) is fixedly connected to a sludge discharge pipe (210), and a sludge pump (211) is installed at the end of the sludge discharge pipe (210).

3. The water purification device for treating wastewater from stone and coal slag removal according to claim 1, characterized in that: The stirring inner cylinder (207) is coaxially disposed inside the anti-turbulence partition plate (205), and the inner cavity of the stirring inner cylinder (207) is connected to the inner cavity of the anti-turbulence partition plate (205). The inner cavity of the anti-turbulence partition plate (205), the inner cavity of the drainage cylinder (202), and the inner cavity of the settling cylinder (201) are all connected.

4. A water purification device for treating wastewater from stone and coal slag removal according to claim 1, characterized in that: The stirring assembly (6) includes a second servo motor (601), which is fixedly connected to the top of the water purification chamber (5). The output end of the second servo motor (601) is fixedly connected to a rotating shaft (603), and a bearing (602) is interference-fitted to the outside of the rotating shaft (603), and the bearing (602) is nested inside the water purification chamber (5).

5. A water purification device for treating wastewater from stone and coal slag removal according to claim 4, characterized in that: The outer wall of the rotating shaft (603) is fixedly connected with a rising blade (604), and the rising blade (604) is set at an equal angle with respect to the outer wall of the rotating shaft (603). A stirring rod (605) is provided at the bottom of the rising blade (604), and the stirring rod (605) is uniformly fixed to the outer wall of the rotating shaft (603).

6. A water purification device for treating wastewater from stone and coal slag removal according to claim 1, characterized in that: The rotary switch assembly (3) includes a flow control cylinder (301), which is nested outside the drain cylinder (202) and the flow control cylinder (301) and the drain cylinder (202) are in clearance fit. The flow control cylinder (301) has a drainage hole (302) on its side, and the drainage hole (302) corresponds to the drainage through hole (203) one by one.

7. A water purification device for treating wastewater from stone and coal slag removal according to claim 6, characterized in that: A serrated ring (303) is fixedly connected to the outer wall of the flow control cylinder (301), and a gear (304) is meshed on the side of the serrated ring (303). A first servo motor (305) is installed at the bottom of the gear (304), and the first servo motor (305) is fixedly connected to the inner wall of the outer cylinder (1) of the processing device.

8. A water purification device for treating wastewater from stone and coal slag removal according to claim 6, characterized in that: The bottom of the flow control cylinder (301) is fixedly connected to a limiting rotating ring (306), and the outside of the flow guide plate (206) is rotatably connected to a limiting groove ring (307). The limiting groove ring (307) is sleeved on the outer wall of the settling cylinder (201), and the limiting groove ring (307) is fixedly connected to the settling cylinder (201).

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