Wastewater recycling and metering device for concrete production line

Abstract

The utility model provides a concrete production line waste water recycling metering device, which relates to the technical field of concrete production and processing, and comprises a bearing support frame and a waste water purifying cylinder, a waste water collecting box is arranged on the top surface outside the bearing support frame, one end of the waste water collecting box is connected with a diversion elbow, and the other end of the waste water collecting box is connected with a solid recycling pipe; a deposition arc plate is arranged on the inner bottom surface of the wastewater collection tank, a gravity sensor is arranged in the deposition arc plate, an electromagnetic flowmeter is arranged in one end, close to the wastewater collection tank, of the flow guide bent pipe, the deposition arc plate is used for carrying out static precipitation on entering wastewater, so that solid residues in the wastewater are precipitated on the surface of the deposition arc plate, and the gravity sensor is used for weighing; after the wastewater is discharged and filtered, the exhaust fan extracts internal solid residues, solids are weighed and matched with flow parameters of the electromagnetic flowmeter, and after the flow parameters reach a set threshold value, the wastewater is discharged through the exhaust fan, so that solid deposition is effectively prevented from blocking a water outlet, and wastewater flow blocking is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete production and processing, in particular to a wastewater recovery and metering device for a concrete production line. Background Art

[0002] The working principle of the wastewater recovery and metering device of the concrete production line is to collect and transport wastewater through a pipeline system. However, since wastewater often contains a large amount of solid particles, such as sand, stone, cement slag, etc., these solid particles are easy to accumulate and deposit inside the pipeline during the flow process, causing pipeline blockage. The sources of solid substances that cause pipeline blockage are diverse. On the one hand, the raw materials used in the concrete production process, such as sand and stone, themselves contain certain solid particles; on the other hand, during the process of concrete mixing, transportation and pouring, due to the wear and aging of equipment, some solid waste may also be generated, and these wastes will also enter the pipeline system of the wastewater recovery and metering device.

[0003] In the prior art, the wastewater generated during concrete processing contains solid residues such as sand, gravel, and cement slag. Due to the large size of the particles, the pipes can be easily blocked during the wastewater recovery process, and the solid residues cannot be processed in a timely manner, which affects the wastewater flow rate and is not conducive to practical use. Utility Model Content

[0004] The utility model aims to solve the defect that the residual solid in the concrete processing wastewater in the prior art cannot be cleaned in time, and proposes a concrete production line wastewater recovery and metering device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a wastewater recovery and metering device for a concrete production line, comprising a load-bearing support frame and a wastewater purification cylinder, a wastewater collection box is provided on the external top surface of the load-bearing support frame, a wastewater purification cylinder is provided on the internal top surface of the load-bearing support frame, one end of the wastewater collection box is connected with a diversion elbow, and the bottom end of the diversion elbow is connected to one end of the side of the wastewater purification cylinder, and the other end of the wastewater collection box is connected with a solid recovery pipe.

[0006] Preferably, a sedimentation arc plate is provided on the inner bottom surface of the wastewater collection box, and a gravity sensor is provided inside the sedimentation arc plate.

[0007] Preferably, an electromagnetic flowmeter is provided inside one end of the diversion elbow close to the wastewater collection tank.

[0008] Preferably, an exhaust fan is provided on one side of the top surface of the load-bearing support frame, and the exhaust fan is connected to the end of the solid recovery pipe.

[0009] Preferably, a wastewater inlet is vertically penetrated through one side of the top surface of the wastewater collection box, and a sealing valve is provided inside the wastewater inlet at one end close to the wastewater collection box.

[0010] Preferably, a support bracket is provided on the inner bottom surface of the load-bearing support frame, and the top surface of the support bracket is engaged with the outer wall of the wastewater purification cylinder.

[0011] Preferably, a plurality of groups of filter screens are provided inside the wastewater purification cylinder, and the mesh sizes on the surfaces of the filter screens decrease in an equal and equal gradient.

[0012] Preferably, an outlet pipe is connected to one end of the wastewater purification cylinder away from the diversion elbow, and the outlet pipe is engaged with the surface of the load-bearing support frame.

[0013] Preferably, the wastewater purification cylinder is installed at an angle, and the inclination angle of one end of the wastewater purification cylinder close to the diversion elbow is 10-15 degrees.

[0014] Beneficial Effects

[0015] In the utility model, the top surface of the load-bearing support frame is used to receive the wastewater from the concrete production and processing through the wastewater collection box, and the incoming wastewater is statically precipitated through the internal sedimentation arc plate, so that the solid residue in the wastewater is settled on the surface of the sedimentation arc plate and weighed by a gravity sensor. After the wastewater is discharged and filtered, the internal solid residue is extracted by the exhaust fan on the side, and the solid is weighed and compared with the flow parameters of the electromagnetic flowmeter. After reaching the set threshold, it is discharged through the exhaust fan, which effectively prevents solid deposition from clogging the drain outlet and prevents wastewater flow from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is an axonometric drawing of the utility model;

[0018] Figure 3 It is a front cross-sectional view of the utility model;

[0019] Figure 4 It is a side sectional view of the utility model.

[0020] Legend:

[0021] 1. Load-bearing support frame; 2. Support bracket; 3. Wastewater inlet; 4. Sedimentation arc plate; 5. Gravity sensor; 6. Sealing valve; 7. Diversion elbow; 8. Electromagnetic flowmeter; 9. Wastewater purification cylinder; 10. Filter screen; 11. Water outlet pipe; 12. Solid recovery pipe; 13. Exhaust fan; 14. Wastewater collection box. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0023] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment one:

[0025] Reference Figure 1-4 A wastewater recovery and metering device for a concrete production line includes a load-bearing support frame 1 and a wastewater purification cylinder 9. A wastewater collection box 14 is provided on the external top surface of the load-bearing support frame 1, and a wastewater purification cylinder 9 is provided on the internal top surface of the load-bearing support frame 1. A diversion elbow 7 is connected to one end of the wastewater collection box 14, and the bottom end of the diversion elbow 7 is connected to one end of the side of the wastewater purification cylinder 9. A wastewater inlet 3 is vertically penetrated on one side of the top surface of the wastewater collection box 14, and a sealing valve 6 is provided at one end of the wastewater inlet 3 near the wastewater collection box 14. When the whole device is actually used, it is mainly used for concrete production and processing. Wastewater is recycled and processed mainly by connecting the wastewater inlet 3 on the top surface to the external concrete processing drain for water supply, and by opening the sealing valve 6, water flows into the wastewater collection box 14. Solids in the wastewater are deposited and weighed inside the wastewater collection box 14, and the wastewater passes through the diversion elbow 7 into the wastewater purification cylinder 9 for filtration and recovery. The wastewater flow rate is detected and compared with the weight of the solids inside. When the amount of solids is too much, the solids are discharged through the solid recovery pipe 12 to prevent the solids from clogging the pipeline and affecting the flow of wastewater.

[0026] When solids in wastewater are deposited, since the other end of the wastewater collection box 14 is connected to a solid recovery pipe 12, a deposition arc plate 4 is provided on the bottom surface of the wastewater collection box 14, a gravity sensor 5 is provided inside the deposition arc plate 4, an electromagnetic flowmeter 8 is provided inside the end of the diversion elbow 7 close to the wastewater collection box 14, and an exhaust fan 13 is provided on one side of the top surface of the load-bearing support frame 1, and the exhaust fan 13 is connected to the end of the solid recovery pipe 12. Therefore, after the wastewater is deposited inside the wastewater collection box 14, the deposited solids are gathered on the surface of the deposition arc plate 4. The top surface of the deposition arc plate 4 is an inwardly concave arc surface, which is convenient for the solids to gather at the central axis position and convenient for the internal gravity sensor 5 to be weighed. The electromagnetic flowmeter 8 detects the flow rate of wastewater when it flows out of the diversion elbow 7. Under the same conditions, when the flow rate is detected to decrease and the solid weight increases at the same time, it means that the pipeline is blocked due to excessive solid content. At this time, the solid recovery pipe 12 is used to absorb the internal solids through the exhaust fan 13 to prevent pipeline blockage.

[0027] Other limiting structures of the entire device are as follows: a support bracket 2 is provided on the bottom surface of the inner part of the load-bearing support frame 1, and the top surface of the support bracket 2 is engaged with the outer wall of the wastewater purification cylinder 9 to maintain the stability of the wastewater purification cylinder 9 when in use and prevent shaking; a plurality of groups of filter screens 10 are provided inside the wastewater purification cylinder 9, and the mesh size on the surface of the filter screens 10 is gradually reduced, which is convenient for filtering the wastewater layer by layer and realizing the recycling of wastewater from coarse filtration to fine filtration; an end of the wastewater purification cylinder 9 away from the diversion elbow 7 is connected with an outlet pipe 11, and the outlet pipe 11 is engaged with the surface of the load-bearing support frame 1, and the filtered wastewater is discharged through the outlet pipe 11 to realize centralized collection and use; the wastewater purification cylinder 9 is installed at an angle, and the inclination angle of the end of the wastewater purification cylinder 9 close to the diversion elbow 7 is 10-15 degrees, which is convenient for the flow of wastewater and increases the flow rate. Specific embodiment 2:

[0029] Reference Figure 1-4 When the whole device is used to weigh the solid inside the wastewater collection box 14 and the calculation relationship of the electromagnetic flowmeter 8, two weighing methods are adopted, one is the weighing of fixed volume, and the other is the weighing of non-fixed volume.

[0030] For the first case, the internal volume of the wastewater collection box 14 is set to V. The entire wastewater collection box 14 is filled with wastewater. In the state of no solid, the weight of the wastewater is weighed by the gravity sensor 5 and recorded as M. Each time the wastewater is treated, the sealing valve 6 remains closed after the wastewater collection box 14 is filled with wastewater. After the wastewater in the wastewater collection box 14 is discharged, the next round of wastewater enters, the solids are deposited inside the wastewater collection box 14, and the wastewater is discharged. In actual use, the wastewater actually entering the wastewater collection box 14 contains solids, so the weight of the wastewater mostly exceeds M. It is weighed by the gravity sensor 5 and recorded as m. K is set as the difference threshold between m and M. If the difference exceeds K, the solids are directly collected through the solid recovery pipe 12 after the wastewater is discharged. If the difference does not exceed K, the minimum speed threshold of the electromagnetic flowmeter 8 is set to H. When the actual speed v of the electromagnetic flowmeter 8 is less than H, the solid recovery pipe 12 is directly opened to collect the solids.

[0031] For the second case, solids are weighed in a flowing state, the wastewater inlet 3 maintains the entry of wastewater, and the wastewater and the collection box do not need to be kept filled with wastewater. When the actual speed v of the electromagnetic flowmeter 8 is less than the set threshold H, the solid recovery pipe 12 is opened to collect solids. When this method is actually used, a liquid level gauge can be set inside the wastewater collection box 14 to measure the height of the wastewater, thereby obtaining the wastewater volume and further obtaining the approximate weight M, which can be weighed and discharged according to the first step mentioned above. Specific embodiment three:

[0033] Reference Figure 1-4 The use of the sealing valve 6, electromagnetic flowmeter 8, and gravity sensor 5 of the entire device are all controlled by PLC and transmitted through MCU to maintain signal transmission and setting. In actual use, parameters can be set and operated through external connection control devices such as control box, control panel, etc. Specific embodiment four:

[0035] Reference Figure 1-4 The electromagnetic flowmeter 8 calculates the flow rate of the liquid by measuring the induced electromotive force generated when the liquid flows in the magnetic field. This flowmeter has the advantages of high precision and good stability.

[0036] The deposition arc plate 4 is installed at a slight inclination, and the solid recovery pipe 12 will carry a small amount of wastewater when extracting solids. After the external solids are filtered, this part of the wastewater re-enters the wastewater collection box 14 through the wastewater inlet 3 for treatment.

[0037] In summary: This patent adopts a load-bearing support frame 1 to receive the wastewater from concrete production and processing through a wastewater collection box 14 on the top surface, and uses an internal sedimentation arc plate 4 to statically precipitate the incoming wastewater, so that the solid residue in the wastewater settles on the surface of the sedimentation arc plate 4 and is weighed by a gravity sensor 5. After the wastewater is discharged and filtered, the solid residue inside is extracted by the side exhaust fan 13. The solid is weighed and compared with the flow parameters of the electromagnetic flowmeter 8. After reaching the set threshold, it is discharged through the exhaust fan 13, which effectively prevents solid deposition from clogging the drain outlet and prevents wastewater flow from being blocked.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wastewater recovery and metering device for a concrete production line, comprising a load-bearing support frame (1) and a wastewater purification cylinder (9), characterized in that: A wastewater collection box (14) is provided on the external top surface of the load-bearing support frame (1), and a wastewater purification cylinder (9) is provided on the internal top surface of the load-bearing support frame (1). One end of the wastewater collection box (14) is connected to a diversion elbow (7), and the bottom end of the diversion elbow (7) is connected to one end of the side of the wastewater purification cylinder (9). The other end of the wastewater collection box (14) is connected to a solid recovery pipe (12).

2. A wastewater recovery and metering device for a concrete production line according to claim 1, characterized in that: The bottom surface of the wastewater collection box (14) is provided with a deposition arc plate (4), and a gravity sensor (5) is provided inside the deposition arc plate (4).

3. A wastewater recovery and metering device for a concrete production line according to claim 1, characterized in that: An electromagnetic flowmeter (8) is provided inside one end of the diversion elbow (7) close to the wastewater collection box (14).

4. A wastewater recovery and metering device for a concrete production line according to claim 1, characterized in that: A suction fan (13) is provided on one side of the top surface of the load-bearing support frame (1), and the suction fan (13) is connected to the end of the solid recovery pipe (12).

5. A wastewater recovery and metering device for a concrete production line according to claim 2, characterized in that: A wastewater inlet (3) is vertically penetrated through one side of the top surface of the wastewater collection box (14), and a sealing valve (6) is provided inside the wastewater inlet (3) at one end close to the wastewater collection box (14).

6. A wastewater recovery and metering device for a concrete production line according to claim 1, characterized in that: A support bracket (2) is provided on the inner bottom surface of the load-bearing support frame (1), and the top surface of the support bracket (2) is engaged with the outer wall of the wastewater purification cylinder (9).

7. A wastewater recovery and metering device for a concrete production line according to claim 1, characterized in that: The wastewater purification cylinder (9) is provided with a plurality of groups of filter screens (10) inside, and the mesh sizes on the surfaces of the filter screens (10) decrease in an equal and gradient manner.

8. The wastewater recovery and metering device for a concrete production line according to claim 1 is characterized by: An end of the wastewater purification cylinder (9) away from the diversion elbow (7) is connected to a water outlet pipe (11), and the water outlet pipe (11) is engaged with the surface of the load-bearing support frame (1).

9. A wastewater recovery and metering device for a concrete production line according to claim 1, characterized in that: The wastewater purification cylinder (9) is installed at an angle, and the inclination angle of one end of the wastewater purification cylinder (9) close to the diversion elbow (7) is 10-15 degrees.

Images