A waste water and waste slurry collecting device for concrete production

Abstract

The utility model discloses a wastewater waste slurry collecting device of concrete production, including base and the mounting frame of connecting on base, and the filter cartridge of rotatable installation is had to mounting frame, the filter cartridge includes outer filter bowl and inner filter bowl, and is equipped with the connecting ring between inner filter bowl and outer filter bowl, and the cylinder of outer filter bowl and connecting ring are even distributed with a plurality of first filter holes in array form, and the cylinder of inner filter bowl is even distributed with a plurality of second filter holes in array form, and the aperture of second filter hole is greater than the aperture of first filter hole, the filter cartridge is obliquely arranged, and the lower side of filter cartridge is equipped with first collecting box, second collecting box and third collecting box in proper order, and one side of filter cartridge is equipped with connecting pipeline, and the middle section of connecting pipeline is connected with slurry pump, the design can through the connecting pipeline of setting and the slurry pump of setting on connecting pipeline, can absorb the concrete wastewater waste slurry of cleaning residual in mixer or mixer truck to filter cartridge, separates the aggregate of different particle size and wastewater, and collects in different collecting box.

Description

Technical Field

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

[0002] Concrete wastewater and slurry primarily originate from the production process within the mixing plant, specifically from the inside of concrete transport trucks or mixer truck tanks. After each production run or when changing the concrete grade, the mixing unit must be thoroughly cleaned, generating large quantities of highly alkaline wastewater containing cement, admixtures, and additives. After unloading, the inside of the mixer truck tank must be cleaned promptly to prevent residual concrete from solidifying, also producing substantial amounts of wastewater and slurry. The pH value of concrete wastewater and slurry is as high as 11-13, classifying it as a strongly alkaline pollutant. Direct discharge of this wastewater and slurry will severely pollute soil and water bodies, kill aquatic life, and damage the ecological environment.

[0003] By recycling wastewater and slurry, the treated water can completely replace tap water in concrete production and equipment washing, significantly saving water resources and costs. The settled solid waste (mainly cement stone, fine sand, and mineral admixtures) can partially replace sand or mineral admixtures as raw materials for producing low-grade concrete or mortar, achieving "zero discharge" and saving on raw material and waste disposal costs. In existing technologies, wastewater and slurry from mixers and mixer trucks are typically collected in separate receiving troughs or underground pits, then channeled into a main sedimentation tank via pipes, open ditches, or culverts. This process involves multiple receiving troughs and collection pits, which occupy a large area. Furthermore, the open ditches and culverts easily accumulate large amounts of aggregate and other sediments due to gravity, causing blockages and resulting in low recycling efficiency. Utility Model Content

[0004] This utility model addresses the technical problem of low efficiency and high economic expenditure in the collection, treatment, and recycling of concrete wastewater and slurry after concrete mixing and transportation. It provides a wastewater and slurry collection device for concrete production, including a base and an mounting frame connected to the base. Each of the two opposite sides of one end of the mounting frame is provided with a fixing plate, and a bearing ring is fixedly connected between the two fixing plates. A filter cylinder is fixedly connected to the inner ring of the bearing ring.

[0005] The other side of the mounting frame is provided with a connecting horizontal plate. Two fixing shafts are fixed at the upper end of the connecting horizontal plate. Each fixing shaft is provided with a roller to ensure that the filter cartridge is rotatably mounted on the mounting frame.

[0006] The filter cartridge includes an outer filter cartridge and an inner filter cartridge on the same axis as the outer filter cartridge. A connecting ring is provided between the inner filter cartridge and the outer filter cartridge. Multiple first filter holes are evenly distributed in an array on the body of the outer filter cartridge and the connecting ring. Multiple second filter holes are evenly distributed in an array on the body of the inner filter cartridge. The diameter of the second filter holes is larger than the diameter of the first filter holes.

[0007] The filter cartridge is arranged at an angle, and a first collection box, a second collection box and a third collection box are arranged in sequence below the filter cartridge and connected to the base. A connecting pipe is provided on one side of the filter cartridge, and a slurry pump is connected to the middle section of the connecting pipe.

[0008] Preferably, in the above technical solution, a gear is provided on the outer side of one end of the filter cartridge.

[0009] Preferably, in the above technical solution, a drive motor is fixedly connected to the outer side of the mounting bracket, and a helical gear that meshes with the gear is fixedly connected to the end of the drive motor shaft of the drive motor.

[0010] Preferably, in the above technical solution, the mounting frame is provided with a "U"-shaped clamp, the connecting pipe is fixed on the mounting frame by the "U"-shaped clamp, the end diameter of the connecting pipe is smaller than the diameter of the inner filter cartridge, and is on the same axis as the inner filter cartridge.

[0011] Preferably, in the above technical solution, the other end of the connecting pipe is connected to a flexible pipe and a suction port.

[0012] Preferably, in the above technical solution, the inclination angle of the filter cartridge is 5-15°.

[0013] Preferably, in the above technical solution, the pore size of the first filter pore is 4.75mm-6mm, and the pore size of the second filter pore is 6mm-15mm.

[0014] Preferably, in the above technical solution, the inner filter cartridge is provided with an extension section, the edge of the extension section is above the third collection box, and the edge of the outer filter cartridge is above the second collection box.

[0015] Preferably, in the above technical solution, a water-blocking ring is fixedly connected to the end of the first filter hole of the outer filter cartridge, and the water-blocking ring is located above the first collection box.

[0016] Preferably, in the above technical solution, each of the four corners of the bottom of the base is provided with a caster wheel.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention, through a connecting pipe and a slurry pump mounted on the connecting pipe, can draw residual concrete wastewater and slurry from the mixer or mixer truck into a filter cartridge. The inclined filter cartridge rotates, and after two rounds of filtration, aggregates of different particle sizes and wastewater are separated and collected in different collection boxes for subsequent refined recycling. This reduces the need for water collection tanks and underground collection pits, and improves the efficiency of wastewater and slurry recycling and collection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a wastewater and slurry collection device for concrete production according to this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of a wastewater and slurry collection device for concrete production according to this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of the filter cartridge in a wastewater and slurry collection device for concrete production according to this utility model.

[0022] Figure 4 This is a side view of the connection relationship between the connecting ring and the outer and inner filter cylinders in a wastewater and slurry collection device for concrete production according to this utility model.

[0023] Figure 5 This is a schematic diagram showing the connection relationship between the helical gear and the filter cylinder gear in a wastewater and slurry collection device for concrete production according to this utility model.

[0024] Explanation of key figure labels:

[0025] 1-Base, 2-Mounting bracket, 3-Drive motor, 4-Slurry pump, 5-Filter cartridge, 7-First collection box, 8-Second collection box, 9-Third collection box, 12-Wheel caster, 21-Fixing plate, 23-Connecting cross plate, 24-Fixing shaft, 25-Roller, 31-Drive motor shaft, 32-Helical gear, 51-Outer filter cartridge, 52-Inner filter cartridge, 53-Gear, 55-Bearing ring, 56-Water baffle ring, 57-Connecting ring, 61-Discharge port, 62-Connecting pipe, 63-Flexible pipe, 64-Suction port, 65-“U”-shaped clamp, 511-First filter hole, 521-Second filter hole, 522-Extension section, 551-Bearing. Detailed Implementation

[0026] 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.

[0027] like Figures 1-5 As shown, this utility model discloses a wastewater and slurry collection device for concrete production, comprising a base 1 and a mounting frame 2 connected to the base 1. Two opposing fixing plates 21 are respectively provided on opposite sides of one end of the mounting frame 2. A bearing ring 55 is fixedly connected between the two fixing plates 21, and a filter cartridge 5 is fixedly connected to the inner ring of the bearing ring 55. The fixing plates 21 mainly serve to install and fix the bearing ring 55, ensuring that the bearing ring 55 and the filter cartridge 5 are securely fixed to the mounting frame 2. A connecting horizontal plate 23 is provided on the other side of the mounting frame 2. Two fixing shafts 24 are fixed to the upper end of the connecting horizontal plate 23, and each fixing shaft 24 is equipped with a roller 25 to ensure that the filter cartridge 5 is rotatably mounted on the mounting frame 2. The two rollers 25 bear the weight of the front end of the filter cartridge 5, while the fixing plates 21 and the bearing ring 55 bear the weight of the rear end of the filter cartridge 5, allowing the filter cartridge 5 to be stably fixed to the mounting frame 2 when rotating. The base 1 has a caster wheel 12 at each of the four corners of its bottom. The caster wheel 12 can improve the flexibility of the wastewater and slurry collection device, allowing it to easily reach the side of the transport vehicle or mixer. Thus, the wastewater and slurry collection work can be carried out without moving the transport vehicle and mixer, reducing the laying of pipes and water channels and avoiding the structural disadvantages of pipes and water channels.

[0028] Further, the filter cartridge 5 includes an outer filter cartridge 51 and an inner filter cartridge 52 coaxial with the outer filter cartridge 51. A connecting ring 57 is provided between the inner filter cartridge 52 and the outer filter cartridge 51. Multiple first filter holes 511 are evenly distributed in an array on the outer filter cartridge 51 and the connecting ring 57. Multiple second filter holes 521 are evenly distributed in an array on the inner filter cartridge 52. The diameter of the second filter holes 521 is larger than that of the first filter holes 511. The diameter of the first filter holes 511 is 4.75mm-6mm, and the diameter of the second filter holes 521 is 6mm-15mm. The filter cartridge 5 is inclined, and a first collection box 7, a second collection box 8, and a third collection box 9 are sequentially provided below the filter cartridge 5 and connected to the base 1. A connecting pipe 62 is provided on one side of the filter cartridge 5, and a slurry pump 4 is connected to the middle section of the connecting pipe 62. The inclination angle of the filter cartridge 5 is 5-15°. A certain tilt angle of the filter cartridge 5 helps the concrete wastewater and slurry inside the cartridge to slide freely under gravity. It is important to note that if the tilt angle is too large, unfiltered aggregate in the filter cartridge 5 will fall rapidly, reducing the filtration effect. If the tilt angle is too small or there is no tilt angle, aggregate will accumulate inside the filter cartridge 5, also reducing the filtration effect. The concrete wastewater and slurry first pass through the second filter hole 521 in the inner filter cartridge 52. Larger aggregate particles fall along the inner filter cartridge 52, while smaller aggregate particles fall along the outer filter cartridge 51. The slurry drips after passing through the first filter hole 511. The aperture sizes of the first filter hole 511 and the second filter hole 521 can be adjusted appropriately according to the type of concrete being produced to achieve a better filtration effect.

[0029] It should be further explained that a gear 53 is provided on the outer side of one end of the filter cartridge 5. A drive motor 3 is fixedly connected to the outer side of the mounting bracket 2, and a helical gear 32 that meshes with the gear 53 is fixedly connected to the end of the drive motor shaft 31 of the drive motor 3. The drive motor 3 drives the helical gear 32 to rotate, thereby driving the rotation of the filter cartridge 5. It should be noted that the rotation speed of the filter cartridge 5 should not be too fast. It is sufficient to rotate at a low speed to agitate and tumble the wastewater and slurry inside. Otherwise, the concrete wastewater and slurry inside the cartridge will scatter in all directions under the action of large centrifugal force, which will damage the surrounding environment and affect the recycling and collection efficiency of wastewater and slurry.

[0030] In this embodiment, the mounting frame 2 is equipped with a U-shaped clamp 65, and the connecting pipe 62 is fixed to the mounting frame 2 by the U-shaped clamp 65. Tightening the nut on the other side of the U-shaped clamp 65 achieves fixation. The end diameter of the connecting pipe 62 is smaller than the diameter of the inner filter cylinder 52, and it is on the same axis as the inner filter cylinder 52. This smaller diameter ensures that the connecting pipe 62 extends into the inner filter cylinder 52 without contacting it, and that the connecting pipe 62 does not affect the rotation of the filter cylinder 5. The other end of the connecting pipe 62 is connected to a flexible pipe 63 and a suction port 64. The flexible pipe 63 can be arbitrarily changed in direction, and the position of the suction port 64 can be appropriately adjusted according to the height and position of the mixer truck or mixer to improve the absorption and recycling efficiency of concrete wastewater and slurry.

[0031] In this embodiment, the inner filter cylinder 52 has an extension section 522, the edge of which is above the third collection box 9, and the edge of the outer filter cylinder 51 is above the second collection box 8. The extension section 522 does not have a second filter hole 521, allowing the aggregate in the inner filter cylinder 52 to fall into the third collection box 9 under gravity, while smaller aggregates between the outer filter cylinder 51 and the inner filter cylinder 52 fall into the second collection box 8 under gravity. A water-blocking ring 56 is fixedly connected to the end of the first filter hole 511 of the outer filter cylinder 51, and the water-blocking ring 56 is above the first collection box 7. The first collection box 7 is relatively long, close to the length of the outer filter cylinder 51. The water-blocking ring 56 can block and collect water droplets falling into the first collection box 7, preventing them from flowing along the outer wall of the outer filter cylinder 51 into the bearing ring 55, thus reducing the efficiency of the collection and recycling process.

[0032] This invention, through a connecting pipe and a slurry pump mounted on the connecting pipe, can draw residual concrete wastewater and slurry from the mixer or mixer truck into a filter cartridge. The inclined filter cartridge rotates, and after two rounds of filtration, aggregates of different particle sizes and wastewater are separated and collected in different collection tanks for subsequent refined recycling. This reduces the need for water collection tanks and underground collection pits, improving the efficiency of wastewater and slurry collection. It solves the technical problem of low collection efficiency and high economic costs associated with the collection and treatment of concrete wastewater and slurry after mixing and transportation. This device reduces the need for multiple water collection tanks and pits, as well as the laying of pipes and channels, avoiding the disadvantages of these systems and improving the efficiency of wastewater and slurry collection.

[0033] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A wastewater and slurry collection device for concrete production, characterized in that: Includes a base (1) and a mounting bracket (2) connected to the base (1). Each of the two opposite sides of one end of the mounting bracket (2) is provided with a fixing plate (21). A bearing ring (55) is fixedly connected between the two fixing plates (21). A filter cartridge (5) is fixedly connected to the inner ring of the bearing ring (55). The mounting bracket (2) has a connecting horizontal plate (23) on the other side. Two fixed shafts (24) are fixed at the upper end of the connecting horizontal plate (23). Each fixed shaft (24) is equipped with a roller (25) to ensure that the filter cartridge (5) is rotatably mounted on the mounting bracket (2). The filter cartridge (5) includes an outer filter cartridge (51) and an inner filter cartridge (52) on the same axis as the outer filter cartridge (51). A connecting ring (57) is provided between the inner filter cartridge (52) and the outer filter cartridge (51). A plurality of first filter holes (511) are evenly distributed in an array on the body of the outer filter cartridge (51) and the connecting ring (57). A plurality of second filter holes (521) are evenly distributed in an array on the body of the inner filter cartridge (52). The aperture of the second filter hole (521) is larger than the aperture of the first filter hole (511). The filter cylinder (5) is arranged at an angle, and a first collection box (7), a second collection box (8) and a third collection box (9) are arranged in sequence below the filter cylinder (5) and connected to the base (1). A connecting pipe (62) is provided on one side of the filter cylinder (5), and a slurry pump (4) is connected to the middle section of the connecting pipe (62).

2. The wastewater and slurry collection device for concrete production according to claim 1, characterized in that: A gear (53) is provided on the outer side of one end of the filter cartridge (5).

3. The wastewater and slurry collection device for concrete production according to claim 2, characterized in that: A drive motor (3) is fixedly connected to the outside of the mounting bracket (2), and a helical gear (32) that meshes with the gear (53) is fixedly connected to the end of the drive motor shaft (31) of the drive motor (3).

4. The wastewater and slurry collection device for concrete production according to claim 1, characterized in that: The mounting bracket (2) is provided with a "U" shaped clamp (65), and the connecting pipe (62) is fixed on the mounting bracket (2) by the "U" shaped clamp (65). The end diameter of the connecting pipe (62) is smaller than the diameter of the inner filter cylinder (52), and it is on the same axis as the inner filter cylinder (52).

5. The wastewater and slurry collection device for concrete production according to claim 4, characterized in that: The other end of the connecting pipe (62) is connected to a flexible pipe (63) and a suction port (64).

6. The wastewater and slurry collection device for concrete production according to claim 1, characterized in that: The filter cartridge (5) has an inclination angle of 5-15°.

7. The wastewater and slurry collection device for concrete production according to claim 6, characterized in that: The diameter of the first filter hole (511) is 4.75mm-6mm, and the diameter of the second filter hole (521) is 6mm-15mm.

8. The wastewater and slurry collection device for concrete production according to claim 7, characterized in that: The inner filter cartridge (52) is provided with an extension section (522), the edge of which is above the third collection box (9), and the edge of the outer filter cartridge (51) is above the second collection box (8).

9. The wastewater and slurry collection device for concrete production according to claim 8, characterized in that: A water-blocking ring (56) is fixedly connected to the end of the first filter hole (511) of the outer filter cartridge (51), and the water-blocking ring (56) is located above the first collection box (7).

10. The wastewater and slurry collection device for concrete production according to claim 1, characterized in that: The base (1) has a universal wheel (12) at each of the four corners of its bottom.

Images