A concrete mixing plant wastewater and waste slurry treatment device

Abstract

The utility model relates to concrete wastewater waste slurry processing technical field discloses a kind of concrete mixing station wastewater waste slurry processing equipment, including base, the upper surface of base one side is provided with screening mechanism, the screening mechanism includes frame, the upper end and the lower end of the inner wall of frame are all fixedly connected with screen, the end of screen far from the middle part of base is all fixedly connected with guide plate, the lower surface of frame is provided with waste liquid tank, the side of waste liquid tank far from the middle part of base is provided with bracket, the upper surface of bracket is fixedly connected with support plate. In the utility model, compared with the most concrete mixing station wastewater waste slurry processing equipment of prior art, the concrete mixing station wastewater waste slurry processing equipment is provided with cleaning mechanism in sedimentation tank, the scraper is driven by motor to rotate, so as to avoid waste liquid to cause the blockage of filter screen when filtering, and the water in water tank is pumped out by water pump, to clean in sedimentation tank, so as to repeatedly use waste water.

Description

Technical Field

[0001] This utility model relates to the field of concrete wastewater and slurry treatment technology, and in particular to a wastewater and slurry treatment device for concrete mixing plants. Background Technology

[0002] Concrete wastewater and slurry treatment is a process that removes impurities and recovers resources from wastewater and slurry containing high concentrations of suspended solids, alkaline substances, and additives generated during concrete production, transportation, and construction. The goal is to achieve water quality standards for discharge or recycling, thereby reducing environmental pollution and enabling resource reuse.

[0003] Traditional concrete wastewater and slurry treatment equipment cannot effectively recover recyclable components from the slurry, resulting in resource waste. At the same time, during long-term continuous slurry filtration, solid particles in the slurry gradually adhere to and accumulate on the filter screen, causing the screen mesh to become clogged, which seriously affects the efficiency and quality of slurry filtration.

[0004] Therefore, those skilled in the art have provided a wastewater and slurry treatment device for concrete mixing plants to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a wastewater and slurry treatment device for concrete mixing plants. Compared to traditional wastewater and slurry treatment devices, this device uses a screening mechanism to pre-screen the sand and gravel in the concrete slurry. The screened slurry is then passed to a sedimentation mechanism for step-by-step sedimentation, thereby separating the sand, gravel, cement residue, and wastewater for easy recycling and reuse. Simultaneously, a cleaning mechanism is installed in the sedimentation tank, with a motor driving a scraper to rotate, preventing the wastewater from clogging the filter screen during filtration. Water is also pumped from the tank to the sedimentation tank for cleaning, thus enabling wastewater reuse.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A wastewater and slurry treatment device for a concrete mixing plant includes a base. A screening mechanism is provided on one side of the upper surface of the base. The screening mechanism includes a frame. A screen is fixedly connected to the upper and lower ends of the inner wall of the frame. A guide plate is fixedly connected to the end of the screen away from the middle of the base. A waste liquid tank is provided on the lower surface of the frame. A support is provided on the side of the waste liquid tank away from the middle of the base. A support plate is fixedly connected to the upper surface of the support. A storage frame is provided on the inner bottom surface and the upper surface of the support plate.

[0008] A sedimentation mechanism is provided on the other side of the upper surface of the base. The sedimentation mechanism includes multiple sedimentation tanks. A filter screen is fixedly connected to the middle of the inner wall of each sedimentation tank. A funnel is fixedly connected to the center of each filter screen. A guide pipe is fixedly connected to the lower end of the outer wall of each sedimentation tank on the side away from the middle of the base. A conveying pipe is provided below the sedimentation tank. A cleaning mechanism is provided inside the sedimentation mechanism. The cleaning mechanism includes a water pump. A water distribution valve is fixedly connected to the output end of the water pump. Multiple return pipes are fixedly connected to the output end of the water distribution valve. A second motor is fixedly connected to the center of the upper surface of each sedimentation tank. A scraper is fixedly connected to the output end of each second motor.

[0009] Through the above technical solution, the wastewater and slurry treatment equipment of the concrete mixing plant is equipped with a screening mechanism and a sedimentation mechanism to filter the concrete waste liquid step by step, and to store the filtered sand, gravel, slag and wastewater separately for easy recycling and reuse. At the same time, by setting up a cleaning mechanism, the filter screen is cleaned during sedimentation in the sedimentation mechanism to avoid clogging of the filter screen during waste slurry filtration.

[0010] Furthermore, an infusion pipe is fixedly connected to the lower end of the outer wall of the waste liquid tank near the middle of the base, and the end of the infusion pipe away from the waste liquid tank is fixedly connected to the upper end of the outer wall of the uppermost sedimentation tank.

[0011] The above technical solution allows the filtered waste slurry to be transported from the waste liquid tank to the sedimentation tank via a delivery pipe, facilitating the step-by-step sedimentation of the waste slurry.

[0012] Furthermore, the waste liquid tank and the bracket are both fixedly connected to one side of the upper surface of the base, and the front and rear ends of the lower surface of the storage frame are provided with sliding grooves. The front and rear ends of the bottom and upper surfaces of the support plate are fixedly connected with sliders, and the sliding grooves and sliders slide in cooperation with each other.

[0013] The above technical solution, through the cooperation of sliders and grooves, facilitates the removal and installation of the storage frame.

[0014] Furthermore, multiple support columns are fixedly connected to the lower surfaces of both the sedimentation tank and the conveying pipe;

[0015] The above technical solution uses support columns to support the sedimentation tank and the conveying pipe.

[0016] Furthermore, the sedimentation tank is placed in a stepped manner, with the end near the middle of the base being higher. The guide pipe fixedly connected to the upper sedimentation tank is located away from the upper sedimentation tank and is fixedly connected to the upper end of the outer wall of the lower sedimentation tank near the middle of the base.

[0017] With the above technical solution, the stepped placement of the sedimentation tanks facilitates the natural flow of waste slurry into the next sedimentation tank after filtration through the filter screen and the guide pipe located below the filter screen. The output end of the guide pipe is located above the next sedimentation tank, which facilitates the step-by-step filtration of waste slurry, allowing clean water to be filtered out step by step through the filter screen, and allowing cement residue to settle step by step through the filter screen, separating it from the clean water as much as possible.

[0018] Furthermore, a water tank is fixedly connected to the end of the guide pipe connected to the last stage sedimentation tank away from the sedimentation tank. A liquid outlet pipe is fixedly connected to the outer wall of the water tank on the side away from the middle of the base. A discharge pipe is fixedly connected to the lower end of the outer wall of the conveying pipe on the side close to the middle of the base. A storage tank is provided on the lower surface of the discharge pipe.

[0019] The above technical solution allows for the separate storage of filtered and precipitated waste liquid and cement residue, facilitating recycling and reuse.

[0020] Furthermore, the lower ends of the funnels are all fixedly connected to the conveying pipes. The conveying pipes are placed at an angle, with the end near the middle of the base being higher. A first motor is fixedly connected to the outer wall of the conveying pipe near the middle of the base, and a spiral blade is fixedly connected to the output end of the first motor.

[0021] The above technical solution involves rotating the first motor to drive the spiral blades, which in turn causes the cement residue falling from the funnel to rise continuously until it falls into the storage box through the discharge pipe, thereby collecting the residue.

[0022] Furthermore, the end of the return pipe furthest from the water distribution valve is fixedly connected to one side of the upper surface of the sedimentation tank;

[0023] Through the above technical solution, a portion of the filtered wastewater is reused through the return pipe, which is introduced into the sedimentation tank from above to clean the filter screen.

[0024] This utility model has the following beneficial effects:

[0025] 1. The present invention proposes a wastewater and slurry treatment device for concrete mixing plants. Compared with most existing wastewater and slurry treatment devices for concrete mixing plants, this wastewater and slurry treatment device uses a screening mechanism to pre-screen the sand and gravel in the concrete slurry. The screened slurry is then passed to a sedimentation mechanism for step-by-step sedimentation, thereby separating the sand, gravel, cement residue and wastewater in the slurry, which is convenient for recycling and reuse.

[0026] 2. The present invention proposes a wastewater and slurry treatment device for concrete mixing plants. Compared with most existing wastewater and slurry treatment devices for concrete mixing plants, this device has a cleaning mechanism installed in the sedimentation tank. The scraper is driven by a motor to rotate, thereby preventing the waste liquid from clogging the filter screen during filtration. At the same time, water is pumped out of the water tank and sent to the sedimentation tank for cleaning, thus enabling the wastewater to be reused. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a wastewater and slurry treatment device for a concrete mixing plant proposed in this utility model;

[0028] Figure 2 This is a schematic diagram of the screening mechanism in a concrete mixing plant wastewater and slurry treatment equipment proposed in this utility model.

[0029] Figure 3 This is a schematic diagram of the sedimentation mechanism in a concrete mixing plant wastewater and slurry treatment equipment proposed in this utility model.

[0030] Figure 4 This is a cross-sectional view of the sedimentation tank in a concrete mixing plant wastewater and slurry treatment device proposed in this utility model.

[0031] Figure 5 This is a schematic diagram of the material conveying pipe in a wastewater and slurry treatment device for a concrete mixing plant proposed in this utility model.

[0032] Legend:

[0033] 1. Base;

[0034] 2. Screening mechanism; 201. Frame; 202. Screen; 203. Waste liquid tank; 204. Infusion pipe; 205. Guide plate; 206. Slide chute; 207. Sliding block; 208. Storage frame; 209. Bracket; 210. Support plate;

[0035] 3. Sedimentation mechanism; 301. Sedimentation tank; 302. Guide pipe; 303. Filter screen; 304. Funnel; 305. First motor; 306. Spiral blades; 307. Feeding pipe; 308. Discharge pipe; 309. Storage tank; 310. Water tank; 311. Liquid outlet pipe; 312. Support column;

[0036] 4. Cleaning mechanism; 401. Second motor; 402. Scraper; 403. Water pump; 404. Water distribution valve; 405. Return pipe. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] One embodiment of this utility model is provided:

[0039] Reference Figure 1 , Figure 2 and Figure 4 A wastewater and slurry treatment device for a concrete mixing plant includes a base 1. A screening mechanism 2 is provided on one side of the upper surface of the base 1. The screening mechanism 2 includes a frame 201. A screen 202 is fixedly connected to the upper and lower ends of the inner wall of the frame 201. A guide plate 205 is fixedly connected to the end of the screen 202 away from the middle of the base 1. A waste liquid tank 203 is provided on the lower surface of the frame 201. A support 209 is provided on the side of the waste liquid tank 203 away from the middle of the base 1. A support plate 210 is fixedly connected to the upper surface of the support 209. A storage frame 208 is provided on the inner bottom surface and the upper surface of the support plate 210.

[0040] A sedimentation mechanism 3 is provided on the other side of the upper surface of the base 1. The sedimentation mechanism 3 includes multiple sedimentation tanks 301. A filter screen 303 is fixedly connected to the middle of the inner wall of each sedimentation tank 301. A funnel 304 is fixedly connected to the center of each filter screen 303. A guide pipe 302 is fixedly connected to the lower end of the outer wall of the sedimentation tank 301 on the side away from the middle of the base 1. A conveying pipe 307 is provided below the sedimentation tank 301. A cleaning mechanism 4 is provided inside the sedimentation mechanism 3. The cleaning mechanism 4 includes a water pump 403. A water distribution valve 404 is fixedly connected to the output end of the water pump 403. Multiple return pipes 405 are fixedly connected to the output end of the water distribution valve 404. A second motor 401 is fixedly connected to the center of the upper surface of each sedimentation tank 301. A scraper 402 is fixedly connected to the output end of each second motor 401.

[0041] The wastewater and slurry treatment equipment of the concrete mixing plant is equipped with a screening mechanism 2 and a sedimentation mechanism 3 to filter the concrete waste liquid step by step, and to store the filtered sand, gravel, slag and wastewater separately for easy recycling and reuse. At the same time, a cleaning mechanism 4 is set up to clean the filter screen 303 when the sedimentation mechanism 3 is set up to avoid clogging of the filter screen 303 during the slurry filtration.

[0042] Reference Figure 1 and Figure 2A delivery pipe 204 is fixedly connected to the lower end of the outer wall of the waste liquid tank 203 near the middle of the base 1. The end of the delivery pipe 204 away from the waste liquid tank 203 is fixedly connected to the upper end of the outer wall of the uppermost sedimentation tank 301. The filtered waste slurry is transported from the waste liquid tank 203 to the sedimentation tank 301 through the delivery pipe 204, which facilitates the step-by-step sedimentation of the waste slurry. The waste liquid tank 203 and the bracket 209 are both fixedly connected to one side of the upper surface of the base 1. The front and rear ends of the lower surface of the storage frame 208 are provided with sliding grooves 206. The front and rear ends of the bottom and upper surfaces of the support plate 210 are fixedly connected with sliders 207. The sliding grooves 206 and sliders 207 slide in a one-to-one manner. The cooperation between the sliders 207 and the sliding grooves 206 facilitates the removal and installation of the storage frame 208.

[0043] Reference Figure 4 and Figure 5 Multiple support columns 312 are fixedly connected to the lower surfaces of both the sedimentation tank 301 and the conveying pipe 307. These support columns 312 support the sedimentation tank 301 and the conveying pipe 307. The sedimentation tank 301 is placed in a stepped configuration, with the end near the middle of the base 1 positioned higher. The end of the guide pipe 302 fixedly connected to the upper sedimentation tank 301 is located away from the upper sedimentation tank 301 and is fixedly connected to the upper end of the outer wall of the lower sedimentation tank 301 near the middle of the base 1. The stepped placement of the sedimentation tanks 301 facilitates the natural flow of waste slurry into the lower sedimentation tank 301 after filtration through the filter screen 303, via the guide pipe 302 located below the filter screen 303. The output end of the guide pipe 302 is located above the lower sedimentation tank 301, thus facilitating the step-by-step filtration of the waste slurry. Clear water is filtered out step-by-step through the filter screen 303, while cement residue is gradually separated from the clear water through the filter screen 303. The guide pipe 302 connected to the last sedimentation tank 301... A water tank 310 is fixedly connected to the end of the sedimentation tank 301 away from the sedimentation tank 301. A liquid outlet pipe 311 is fixedly connected to the outer wall of the water tank 310 away from the middle of the base 1. A discharge pipe 308 is fixedly connected to the lower end of the outer wall of the conveying pipe 307 near the middle of the base 1. A storage tank 309 is provided on the lower surface of the discharge pipe 308 to store the waste liquid and cement residue from filtration and sedimentation separately for easy recycling and reuse. The lower ends of the funnels 304 are all fixedly connected to the conveying pipes 307. The conveying pipes 307 are placed at an angle, with the end near the middle of the base 1 being higher. A first motor 305 is fixedly connected to the outer wall of the conveying pipe 307 near the middle of the base 1. A spiral blade 306 is fixedly connected to the output end of the first motor 305. The rotation of the first motor 305 drives the spiral blade 306 to rotate, thereby driving the cement residue falling from the funnel 304 to rise continuously and fall into the storage tank 309 at the outlet of the discharge pipe 308, thereby collecting the residue.

[0044] Reference Figure 1 , Figure 3 and Figure 4The end of the return pipe 405 away from the water distribution valve 404 is fixedly connected to one side of the upper surface of the sedimentation tank 301. The return pipe 405 reuses a portion of the filtered wastewater by passing it into the sedimentation tank 301 from above to clean the filter screen 303.

[0045] Working principle: Concrete waste slurry is initially screened by screening mechanism 2. The slurry falls onto two screens 202 with different mesh counts, and different sizes of sand and gravel are screened by vibration. The screened sand and gravel fall into storage frame 208 through guide plate 205. Storage frame 208 can be removed and installed by the cooperation of slide groove 206 on the storage frame 208 and slider 207 on support plate 210. The screened waste liquid falls into waste liquid tank 203 and is transported into sedimentation mechanism 3 through delivery pipe 204, where it undergoes staged sedimentation in sedimentation tank 301. The waste liquid is filtered through filter screen 303 in sedimentation tank 301, and the filtered cement residue falls into funnel 304, and then into delivery pipe 307 through funnel 304. The first motor 305 drives the spiral blade. The rotating plate 306 transfers cement residue to the discharge pipe 308, which falls into the storage tank 309 to collect the filtered cement residue. The filtered waste liquid falls into the next stage sedimentation tank 301 through the guide pipe 302 located below the filter screen 303 for further sedimentation. Finally, the filtered water falls into the water tank 310 and is discharged and further utilized through the liquid outlet pipe 311. When the sedimentation mechanism 3 is operating, the second motor 401 starts to drive the scraper 402 to rotate and clean the filter screen 303 to prevent the filter screen 303 from clogging during filtration. At the same time, the water pump 403 draws out part of the filtered wastewater in the water tank 310 and flows into the sedimentation tank 301 through the return pipe 405 to clean the filter screen 303, thereby achieving the effect of reusing part of the wastewater.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wastewater and slurry treatment device for a concrete mixing plant, comprising a base (1), characterized in that: A screening mechanism (2) is provided on one side of the upper surface of the base (1). The screening mechanism (2) includes a frame (201). A screen (202) is fixedly connected to the upper and lower ends of the inner wall of the frame (201). A guide plate (205) is fixedly connected to the end of the screen (202) away from the middle of the base (1). A waste liquid tank (203) is provided on the lower surface of the frame (201). A bracket (209) is provided on the side of the waste liquid tank (203) away from the middle of the base (1). A support plate (210) is fixedly connected to the upper surface of the bracket (209). A storage frame (208) is provided on the inner bottom surface and the upper surface of the support plate (210). A sedimentation mechanism (3) is provided on the other side of the upper surface of the base (1). The sedimentation mechanism (3) includes multiple sedimentation tanks (301). A filter screen (303) is fixedly connected to the middle of the inner wall of each sedimentation tank (301). A funnel (304) is fixedly connected to the center of each filter screen (303). A guide pipe (302) is fixedly connected to the lower end of the outer wall of the sedimentation tank (301) away from the middle of the base (1). A conveying pipe (307) is provided below the sedimentation tank (301). A cleaning mechanism (4) is provided inside the sedimentation mechanism (3). The cleaning mechanism (4) includes a water pump (403). A water distribution valve (404) is fixedly connected to the output end of the water pump (403). Multiple return pipes (405) are fixedly connected to the output end of the water distribution valve (404). A second motor (401) is fixedly connected to the center of the upper surface of the sedimentation tank (301). A scraper (402) is fixedly connected to the output end of the second motor (401).

2. The wastewater and slurry treatment equipment for concrete mixing plants according to claim 1, characterized in that: The lower end of the outer wall of the waste liquid tank (203) near the middle of the base (1) is fixedly connected to an infusion pipe (204), and the end of the infusion pipe (204) away from the waste liquid tank (203) is fixedly connected to the upper end of the outer wall of the uppermost sedimentation tank (301).

3. The wastewater and slurry treatment equipment for concrete mixing plants according to claim 1, characterized in that: The waste liquid tank (203) and the bracket (209) are both fixedly connected to one side of the upper surface of the base (1). The front and rear ends of the lower surface of the storage frame (208) are provided with sliding grooves (206). The front and rear ends of the bottom and upper surfaces of the support plate (210) are fixedly connected with sliders (207). The sliding grooves (206) and sliders (207) slide in cooperation with each other.

4. The wastewater and slurry treatment equipment for concrete mixing plants according to claim 1, characterized in that: The lower surfaces of the sedimentation tank (301) and the conveying pipe (307) are both fixedly connected with multiple support columns (312).

5. The wastewater and slurry treatment equipment for concrete mixing plants according to claim 1, characterized in that: The sedimentation tank (301) is placed in a stepped manner, with the end closer to the middle of the base (1) being higher. The guide pipe (302) fixedly connected to the upper sedimentation tank (301) is located away from the upper sedimentation tank (301) and is fixedly connected to the upper end of the outer wall of the lower sedimentation tank (301) near the middle of the base (1).

6. The wastewater and slurry treatment equipment for concrete mixing plants according to claim 1, characterized in that: The guide pipe (302) connected to the last stage sedimentation tank (301) is fixedly connected to a water tank (310) at one end away from the sedimentation tank (301). The water tank (310) is fixedly connected to an outlet pipe (311) on the outer wall of the side away from the middle of the base (1). The lower end of the outer wall of the conveying pipe (307) is fixedly connected to an outlet pipe (308) on the side near the middle of the base (1). A storage tank (309) is provided on the lower surface of the outlet pipe (308).

7. The wastewater and slurry treatment equipment for concrete mixing plants according to claim 1, characterized in that: The lower end of each funnel (304) is fixedly connected to a conveying pipe (307). The conveying pipe (307) is placed at an angle, with one end near the middle of the base (1) being higher. A first motor (305) is fixedly connected to the outer wall of the conveying pipe (307) near the middle of the base (1). A spiral blade (306) is fixedly connected to the output end of the first motor (305).

8. The wastewater and slurry treatment equipment for concrete mixing plants according to claim 1, characterized in that: The end of the return pipe (405) away from the water distribution valve (404) is fixedly connected to one side of the upper surface of the sedimentation tank (301).

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