A cleaning system for a prefabricated component annular production line

Abstract

This invention discloses a cleaning system for a precast component circular production line, comprising a first sedimentation tank for cleaning the hoppers of the mixing plant's main unit, a first sedimentation tank group for cleaning the feed trucks, and a second sedimentation tank group for cleaning the hoppers on the placing boom frame. By setting up cleaning stages at three different points in the concrete transportation process, the cleaning pressure on the production line is reduced, production time is minimized and wasted, while the increased sedimentation area promotes complete sedimentation of concrete wastewater, facilitating the recycling of cleaning wastewater, without affecting the production cycle, making the production process more efficient and focused.

Description

Technical Field

[0001] The invention belongs to the technical field of prefabricated component production equipment, and in particular relates to a cleaning system for a prefabricated component annular production line. Background Art

[0002] CN201821667931.7 discloses a feeding system of a concrete placing machine, including an annular feeding frame 8 with an annular track, a feeding vehicle 5 located on the annular track, and a plurality of placing machine frames 6 arranged at intervals below the annular track of the feeding frame. The feeding machine frame 6 is located at the end of the annular track and is provided with a mixing station docking position for docking with a mixing station main machine 4. The lower hopper of the mixing station main machine is located directly above the docking position. The feed port of the feeding vehicle 5 can be docked with the discharge port of the mixing station at the mixing station docking position. Figure 1 As shown, in general, the mixing station silo 7 is located on one side of the end of the feeder frame with the mixing station docking position, and the raw materials in the mixing station silo 7 are delivered to the mixing host 4 through the raw material conveying track 9. The raw material conveying direction is as follows Figure 1 In order to reduce the floor space, the mixing station is generally arranged to span the annular feeding rack 8, the mixing main machine 4 is arranged above the upstream of the feeding section 81 outside the annular feeding rack 8, and one or more material distribution racks 6 are arranged downstream of the feeding section 81 outside the annular feeding rack 8. The feeding direction of the feeding section 81 outside the annular feeding rack 8 is as follows: Figure 1 After the concrete raw materials of the mixing station are mixed in the mixing main machine 4, they are discharged from the unloading port of the mixing main machine 4 to the feeding vehicle 5, and then transported to the hoppers of the material distributors of each production line through the feeding vehicle 5 along the feeding direction of the annular feeding rack 8.

[0003] At present, this type of PC (precast concrete) production line generally only has a cleaning pool in the production line's feeding area, which is used to collect the cleaning wastewater of the feeder hopper and the sedimentation of concrete residue. However, during the operation of the production line, it was found that the mixing station discharge port and the feeding trolley frequently contacted the concrete, and the inner wall was easily attached with concrete residue, resulting in adverse effects such as slow discharge speed and low efficiency. Through research, it was found that the existing PC production line cleaning mainly has the following disadvantages:

[0004] 1) There are few cleaning links in the entire production cycle, which can easily cause concrete to solidify and clump in the feeding cart and hopper, causing inconvenience in subsequent transportation, reduced efficiency, and increased difficulty in thorough cleaning;

[0005] 2) There is no sewage sedimentation tank in the mixing station area, the mixing station discharge port cannot be cleaned regularly, and the sewage from the hopper and concrete feeding trolley cannot be collected, precipitated, and reused;

[0006] 3) Due to the single cleaning site, the hopper cleaning process affects the production efficiency of the production line and disrupts the production rhythm;

[0007] 4) The existing cleaning pool sedimentation structure in the material distribution area is single, the bottom height of the cleaning pool is consistent, and the design is too simple, which easily leads to incomplete concrete sedimentation and low sewage recycling rate;

[0008] 5) Because the sedimentation area of ​​the washing pool in the fabric area is too small and the sedimentation time is long, the production rhythm and progress of the production line are affected, resulting in low production efficiency;

[0009] 6) Because the length of the material distribution machine frame is too short, the material distribution hopper cannot be completely located above the material distribution area cleaning pool after it is moved to the end of the material distribution machine close to the material distribution area cleaning pool, resulting in the cleaning wastewater not being able to fall into the material distribution area cleaning pool, which can easily cause sanitation and dirt problems on the production line. Summary of the invention

[0010] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a cleaning system for a prefabricated component annular production line which reduces the pressure of production line cleaning and reduces production time occupation and waste.

[0011] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0012] A cleaning system for a prefabricated component annular production line comprises a first sedimentation tank for cleaning a hopper of a mixing station mainframe, a first sedimentation tank group for cleaning a feeding vehicle, and a second sedimentation tank group for cleaning a hopper on a material distribution frame.

[0013] Therefore, by setting up cleaning links at three different nodes in the concrete transportation process, the cleaning pressure of the production line can be reduced, the occupation and waste of production time can be reduced, and at the same time, the sedimentation area can be expanded to promote the complete sedimentation of concrete wastewater, which is conducive to the recycling of cleaning wastewater, does not affect the production rhythm, and makes the production links more efficient and centralized.

[0014] As a further improvement of the above technical solution:

[0015] The first sedimentation tank is located below the main unit of the mixing station, the first sedimentation tank group is located between the main unit of the mixing station and the material bin of the mixing station and below the annular feeding rack; the first sedimentation tank is connected to the first sedimentation tank group. The layout is reasonable, the structure is compact, and it will not interfere with the operation of the production line.

[0016] The first sedimentation tank group includes a second sedimentation tank, a third sedimentation tank and a fourth sedimentation tank which are connected in sequence, and the first sedimentation tank, the second sedimentation tank, the third sedimentation tank and the fourth sedimentation tank are arranged in sequence along the raw material conveying direction.

[0017] A first water collection well is provided at one end of the bottom of the first sedimentation tank along the feeding direction of the outer feeding section of the annular feeding rack, and the bottom of the first sedimentation tank slopes downward from the end opposite to the first water collection well and extends to the first water collection well.

[0018] Specifically, the first sedimentation tank is located directly below the discharge port of the dual main machine of the mixing station. The bottom is an overall ramp that slopes toward the first water accumulation well. After the sewage from the discharge port falls into the first sedimentation tank, the concrete is first deposited on the ramp. After the water level reaches a certain height, it is drained to the first sedimentation tank group through the drainage ditch to complete the initial sedimentation.

[0019] A second water collection well is provided at one end of the bottom of the second sedimentation tank corresponding to the first water collection well, and the bottom of the second sedimentation tank slopes downward from the end opposite to the second water collection well and extends to the second water collection well.

[0020] A third water collection well is provided at one end of the bottom of the third sedimentation tank corresponding to the second water collection well. The bottom of the third sedimentation tank slopes downward from the end opposite to the third water collection well and extends to the third water collection well.

[0021] The bottom elevation of the fourth sedimentation tank is lower than the lowest bottom elevation of the second sedimentation tank and lower than the lowest bottom elevation of the third sedimentation tank.

[0022] Specifically, the first sedimentation tank group is a concrete sedimentation tank group dedicated to the cleaning of the feeding vehicle. When the feeding vehicle unloads the material and runs along the annular frame to the top of the first sedimentation tank group, it starts to be flushed and cleaned.

[0023] The first sedimentation tank group is divided into three levels of sedimentation. The first and second sedimentation tanks are sloped like the first sedimentation tank, and the third sedimentation tank is the deepest and flat-bottomed. The first sedimentation tank is connected to the first sedimentation tank through a drainage ditch. The cleaning sewage from the feeding vehicle and the cleaning sewage from the discharge port that has undergone preliminary sedimentation are precipitated in the first sedimentation tank. Similarly, when the water level reaches a certain height, it flows into the second and third sedimentation tanks step by step, and finally the sedimentation is completed.

[0024] The three-stage sedimentation mode increases the concrete sedimentation area and improves the efficiency, so that the concrete is completely sedimented; and the sloped pool bottom makes it easy for forklifts to remove concrete residues.

[0025] In addition, the cleaning water after sedimentation in the sedimentation tank can be reused for cleaning the hopper, discharge port and feeding trolley, which does not waste water resources and achieves the purpose of conservation and environmental protection.

[0026] The second sedimentation tank group is located below the material distribution frame close to one end of the annular feeding frame, and the orthographic projection of the material distribution frame in the direction toward the second sedimentation tank group covers the second sedimentation tank group.

[0027] The material placing machine frame is extended to cover the entire second sedimentation tank group and the material placing station. When the material placing machine's material placing hopper needs to be cleaned, it can ensure that the cleaning sewage and concrete residue can fall completely into the cleaning tank without splashing into the production area of ​​the production line, causing adverse effects on the ground and production line equipment.

[0028] The second sedimentation tank group includes a fifth sedimentation tank, a sixth sedimentation tank and a seventh sedimentation tank which are connected in sequence; the sixth sedimentation tank and the seventh sedimentation tank are arranged side by side along the feeding direction of the outer feeding section of the annular feeding rack; the fifth sedimentation tank is located below the annular feeding rack, and the sixth sedimentation tank and the seventh sedimentation tank are both arranged on one side of the fifth sedimentation tank close to the end of the material distribution frame.

[0029] The lengthening of the fabric frame and the improvement of the shape of the cleaning pool have reduced the splashing of wastewater during production line cleaning, ensuring that the production line floor is dry and clean.

[0030] The bottom elevation H1 of the fifth sedimentation tank is higher than the bottom elevation H2 of the sixth sedimentation tank, and the bottom elevation H2 of the sixth sedimentation tank is higher than the bottom elevation H3 of the seventh sedimentation tank.

[0031] The hopper cleaning wastewater contains a large amount of concrete residue, and it takes a long time of static sedimentation for the solid concrete to sink and separate from the liquid water. The cleaning water after complete sedimentation can be repeatedly used to clean the hopper, realizing the recycling of cleaning water. The three-level sedimentation mode increases the concrete sedimentation area and improves the efficiency. While optimizing the sedimentation effect, it reduces the occupation and waste of production time in the cleaning process; in addition, the cleaning water after sedimentation in the three-level cleaning tank can be reused for cleaning the hopper, discharge port and feeding trolley, without wasting water resources, achieving the purpose of conservation and environmental protection. After the process of step-by-step drainage and graded sedimentation, the cleaning wastewater in the cleaning tank can be fully statically precipitated, and all the concrete is precipitated, realizing the maximization of the sedimentation function of the same area cleaning tank.

[0032] Compared with the prior art, the advantages of the present invention are:

[0033] By increasing the cleaning process in the mixing station area and optimizing the overall cleaning process, the production line efficiency can be improved, the cleaning process can be improved, and the purpose of recycling cleaning water can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of the prefabricated component ring production line.

[0035] Figure 2 It is a structural schematic diagram of a cleaning system of a prefabricated component annular production line according to an embodiment of the present invention.

[0036] Figure 3 It is a schematic diagram of the top view of the structure in which the first sedimentation tank and the first sedimentation tank group are connected.

[0037] Figure 4 This is a schematic diagram of the cross-sectional structure of the first sedimentation tank.

[0038] Figure 5This is a schematic diagram of the top view of the structure of the second sedimentation tank group.

[0039] Figure 6 for Figure 5 AA section view.

[0040] Figure 7 for Figure 5 BB cross-sectional view.

[0041] Legend: 1. First sedimentation tank; 11. First water collection well; 2. First sedimentation tank group; 21. Second sedimentation tank; 211. Second water collection well; 22. Third sedimentation tank; 221. Third water collection well; 23. Fourth sedimentation tank; 3. Second sedimentation tank group; 31. Fifth sedimentation tank; 32. Sixth sedimentation tank; 33. Seventh sedimentation tank; 4. Main unit of mixing station; 5. Feeder truck; 6. Material distribution rack; 7. Mixing station silo; 8. Annular feed rack; 9. Drainage ditch. DETAILED DESCRIPTION

[0042] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0043] Embodiment 1:

[0044] like Figure 2 As shown, the cleaning system of the prefabricated component annular production line of this embodiment includes a first sedimentation tank 1 for cleaning the hopper of the mixing station main unit 4, a first sedimentation tank group 2 for cleaning the feeding vehicle 5, and a second sedimentation tank group 3 for cleaning the hopper on the material distribution frame 6.

[0045] The first sedimentation tank 1 is located below the main unit 4 of the mixing station, and the first sedimentation tank group 2 is located between the main unit 4 of the mixing station and the mixing station silo 7 and below the annular feeding rack 8; the first sedimentation tank 1 is connected to the first sedimentation tank group 2 through a drainage ditch 9.

[0046] like Figure 3 As shown, the first sedimentation tank group 2 includes a second sedimentation tank 21, a third sedimentation tank 22 and a fourth sedimentation tank 23 which are connected in sequence. The first sedimentation tank 1, the second sedimentation tank 21, the third sedimentation tank 22 and the fourth sedimentation tank 23 are arranged in sequence along the raw material conveying direction X.

[0047] like Figure 4 As shown, a first water collection well 11 is provided at the bottom of the first sedimentation tank 1 along the feeding direction Y of the outer feeding section 81 of the annular feeding rack 8 , and the bottom of the first sedimentation tank 1 slopes downward from the end opposite to the first water collection well 11 and extends to the first water collection well 11 .

[0048] A second water collection well 211 is provided at one end of the bottom of the second sedimentation tank 21 corresponding to the first water collection well 11 . The bottom of the second sedimentation tank 21 slopes downward from the end opposite to the second water collection well 211 and extends to the second water collection well 211 .

[0049] A third water collection well 221 is provided at one end of the bottom of the third sedimentation tank 22 corresponding to the second water collection well 211 . The bottom of the third sedimentation tank 22 slopes downward from the end opposite to the third water collection well 221 and extends to the third water collection well 221 .

[0050] The bottom elevation of the fourth sedimentation tank 23 is lower than the lowest bottom elevation of the second sedimentation tank 21 and lower than the lowest bottom elevation of the third sedimentation tank 22 .

[0051] The first sedimentation tank is located directly below the discharge port of the dual main machine of the mixing station. The bottom is an overall ramp that tilts toward the side of the water accumulation well. After the sewage from the discharge port falls into the first sedimentation tank, the concrete is first deposited on the ramp. After the water level reaches a certain height, it is drained to the first sedimentation tank group 2 through the drainage ditch to complete the initial sedimentation.

[0052] The first sedimentation tank group 2 is a concrete sedimentation tank group dedicated to the cleaning of the feeding vehicle 5. When the feeding vehicle 5 unloads the material and runs along the annular feeding frame 8 to the top of the first sedimentation tank group 2, it starts to be flushed and cleaned.

[0053] The first sedimentation tank group 2 is divided into three levels of sedimentation. The first and second sedimentation tanks are sloped like the first sedimentation tank 1, and the third sedimentation tank is the deepest and flat-bottomed. The first sedimentation tank (i.e., the second sedimentation tank 21) is connected to the first sedimentation tank 1 through the drainage ditch 9. The second sedimentation tank 21 is located directly below the annular feeding rack 8. The cleaning sewage from the feeding vehicle 5 and the cleaning sewage from the discharge port that has undergone preliminary sedimentation are precipitated in the first sedimentation tank. Similarly, when the water level reaches a certain height, it flows into the second and third sedimentation tanks step by step, and finally the sedimentation is completed.

[0054] like Figure 2 As shown, the second sedimentation tank group 3 is located below the end of the material distribution rack 6 close to the annular feed rack 8, and the orthographic projection of the material distribution rack 6 in the direction toward the second sedimentation tank group 3 covers the second sedimentation tank group 3. The length of the material distribution rack 6 is extended to cover the entire second sedimentation tank group 3 and the material distribution station on the annular feed rack 8. When the material distribution hopper on the material distribution rack 6 needs to be cleaned, it can be ensured that the cleaning sewage and concrete residue can fall completely into the second sedimentation tank group 3 without splashing to the production area of ​​the production line, causing adverse effects on the ground and production line equipment.

[0055] The hopper cleaning wastewater contains a lot of concrete residues, which need to be left to settle for a long time before the solid concrete can sink and separate from the liquid water. The cleaning water after complete sedimentation can be repeatedly used to clean the hopper, realizing the recycling of cleaning water.

[0056] like Figure 5-7 As shown, the second sedimentation tank group 3 includes a fifth sedimentation tank 31, a sixth sedimentation tank 32 and a seventh sedimentation tank 33 which are connected in sequence; the sixth sedimentation tank 32 and the seventh sedimentation tank 33 are arranged in parallel along the feeding direction Y of the outer feeding section 81 of the annular feeding rack 8; the fifth sedimentation tank 31 is located below the annular feeding rack 8, and the sixth sedimentation tank 32 and the seventh sedimentation tank 33 are both arranged on one side of the fifth sedimentation tank 31 close to the end of the material distribution frame 6.

[0057] In this embodiment, the bottom elevation H1 of the fifth sedimentation tank 31 is higher than the bottom elevation H2 of the sixth sedimentation tank 32 , and the bottom elevation H2 of the sixth sedimentation tank 32 is higher than the bottom elevation H3 of the seventh sedimentation tank 33 .

[0058] Specifically, the three-stage sedimentation process of the cleaning tank divides the original single-depth cleaning tank into three parts:

[0059] Primary sedimentation (fifth sedimentation tank 31): The bottom elevation H1 of the tank is ±0.000 meters, and it is long and strip-shaped, located directly below the annular feeding rack 8. Most of the cleaning sewage from the hopper first falls into the primary sedimentation tank for initial sedimentation;

[0060] Secondary sedimentation (sixth sedimentation tank 32): the pool bottom elevation H2 is -0.500 meters, located at the edge of the material distribution rack 8. After the cleaning water reaches a certain height after the primary sedimentation, it will flow into the secondary sedimentation tank through the pipeline for re-sedimentation;

[0061] Tertiary sedimentation (the seventh sedimentation tank 33): The pool bottom elevation H3 is -1.000 meters, and it is arranged in parallel with the secondary sedimentation tank. The cleaning water in the secondary sedimentation tank flows into the tertiary sedimentation tank through a pipeline after re-sedimentation for final sedimentation.

[0062] After the process of step-by-step drainage and graded sedimentation, the cleaning wastewater in the second sedimentation tank group 3 can be fully settled and the concrete is completely precipitated, thus maximizing the sedimentation function of the cleaning tank with the same area.

[0063] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application is disclosed as a preferred embodiment as above, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A cleaning system for a prefabricated component annular production line, characterized in that: The invention comprises a first sedimentation tank (1) for cleaning the hopper of a mixing station main machine (4), a first sedimentation tank group (2) for cleaning a feeding vehicle (5), and a second sedimentation tank group (3) for cleaning the hopper on a material distribution frame (6); the first sedimentation tank (1) is located below the mixing station main machine (4), the first sedimentation tank group (2) is located between the mixing station main machine (4) and the mixing station silo (7) and below the annular feeding frame (8); the first sedimentation tank (1) is connected to the first sedimentation tank group (2); The first sedimentation tank group (2) comprises a second sedimentation tank (21), a third sedimentation tank (22) and a fourth sedimentation tank (23) which are connected in sequence, and the first sedimentation tank (1), the second sedimentation tank (21), the third sedimentation tank (22) and the fourth sedimentation tank (23) are arranged in sequence along the raw material conveying direction; A first water collection well (11) is provided at one end of the bottom of the first sedimentation tank (1) along the feeding direction of the outer feeding section (81) of the annular feeding frame (8), and the bottom of the first sedimentation tank (1) slopes downward from the end opposite to the first water collection well (11) and extends to the first water collection well (11); A second water collection well (211) is provided at one end of the bottom of the second sedimentation tank (21) corresponding to the first water collection well (11), and the bottom of the second sedimentation tank (21) slopes downward from the end opposite to the second water collection well (211) and extends to the second water collection well (211); A third water collection well (221) is provided at one end of the bottom of the third sedimentation tank (22) corresponding to the second water collection well (211); the bottom of the third sedimentation tank (22) slopes downward from the end opposite to the third water collection well (221) and extends to the third water collection well (221); The bottom elevation of the fourth sedimentation tank (23) is lower than the lowest bottom elevation of the second sedimentation tank (21) and lower than the lowest bottom elevation of the third sedimentation tank (22); The second sedimentation tank group (3) is located below one end of the material distribution frame (6) close to the annular material feeding frame (8), and the orthographic projection of the material distribution frame (6) in the direction toward the second sedimentation tank group (3) covers the second sedimentation tank group (3); The second sedimentation tank group (3) comprises a fifth sedimentation tank (31), a sixth sedimentation tank (32) and a seventh sedimentation tank (33) which are connected in sequence; the sixth sedimentation tank (32) and the seventh sedimentation tank (33) are arranged in parallel along the feeding direction of the outer feeding section (81) of the annular feeding frame (8); the fifth sedimentation tank (31) is located below the annular feeding frame (8), and the sixth sedimentation tank (32) and the seventh sedimentation tank (33) are both arranged on one side of the fifth sedimentation tank (31) close to the end of the material distribution frame (6); The bottom elevation H1 of the fifth sedimentation tank (31) is higher than the bottom elevation H2 of the sixth sedimentation tank (32), and the bottom elevation H2 of the sixth sedimentation tank (32) is higher than the bottom elevation H3 of the seventh sedimentation tank (33).

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