Concrete waste separation device

Abstract

The utility model provides a concrete waste separating device. And the scraping plate slides rightwards to push sludge at the bottom of the precipitation cavity leftwards, and the sludge is pushed to the top of the dividing part by the scraping plate under the action of the guide groove. Due to the fact that the top end of the dividing part is in clearance fit with the upper end of the settling cavity and the top end of the dividing part is in clearance fit with the upper end of the silt storage cavity, when the silt is pushed to the top of the dividing part by the scraper blade, the silt crosses the bottom of the dividing part and falls into the silt storage cavity, and separation of waste water and the silt is completed. The water filtering part is used for filtering water of the sludge pushed by the scraping plate, so that water is prevented from entering the sludge storage cavity, the water content of the sludge in the sludge storage cavity is reduced, and the dehydration treatment efficiency of waste materials in the later period is improved. In conclusion, the concrete waste separation device can perform multi-stage separation on the waste, so that the separation efficiency of the concrete waste is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete waste treatment technical field, especially a kind of concrete waste separating device. BACKGROUND

[0002] With the increasing environmental protection consciousness of people, the recycling of construction waste becomes an important task in civil engineering, and the construction waste refers to the waste generated in the construction process, including concrete blocks, bricks, ceramics and steel materials, which can be reused after classification.

[0003] The concrete waste separating equipment is an important engineering equipment in the construction industry and related fields. The sand, stone, powder and water in the concrete transport tank and waste concrete are separated by water washing and screening method, and then recycled. When the equipment is working, the water pump will flush the remaining concrete with clean water. The water flow is screened by the sand-stone separator. The sand and some concrete waste can be separated from the sewage by the sand-stone separator. The separated sand can be reused as raw material for the mixing concrete sand-stone separator, thereby solving the pollution problem caused by part of the concrete, and saving valuable construction resources economically and reasonably.

[0004] However, the existing concrete waste separating equipment still has the problems of low waste separating efficiency and insufficient separation of concrete waste. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model is provided to overcome the above problems or at least partially solve the above problems, and to solve the problem of low efficiency of the existing concrete waste separating equipment, and to improve the efficiency of separating concrete waste.

[0006] Specifically, the utility model provides a concrete waste separating device, which comprises:

[0007] A separating tank is provided with a feed hopper at the top; a plurality of discharge ports are arranged on the left side of the separating tank;

[0008] A multi-stage screening assembly is arranged in the separating tank and can communicate with a plurality of discharge ports; the multi-stage screening assembly divides the separating tank into screening cavities and sedimentation cavities from top to bottom;

[0009] A sediment storage cavity is located on the right side of the sedimentation cavity, and a partition is arranged between the sediment storage cavity and the sedimentation cavity, which is higher than the height of the material in the sedimentation cavity; the upper end of the partition is in gap cooperation with the upper end of the sediment storage cavity.

[0010] The dredging assembly comprises a scraper, a water filtering part and a driving mechanism; the scraper is slidably arranged in the sedimentation cavity and the lower end edge thereof is in contact with the bottom of the sedimentation cavity; the separation tank is provided with a guide groove for guiding the lower end edge of the scraper to slide to the upper end of the partition; the water filtering part is used for filtering water in the material carried by the scraper during the process of sliding of the lower end edge of the scraper to the upper end of the partition; and the driving mechanism is used for driving the scraper to move left and right.

[0011] Optionally, the water filtering part comprises a water filtering net; the water filtering net is arranged obliquely in the sedimentation cavity, the left end edge of the water filtering net is fixedly connected with the bottom of the separation tank, and the right end edge thereof is fixedly connected with the top end of the partition; and the lower end edge of the scraper is fixedly connected with the water filtering net during the process of sliding of the scraper to the upper end of the partition.

[0012] Optionally, a sliding block connected with the scraper is slidably arranged in the guide groove; the guide groove comprises a first groove segment and a second groove segment; the first groove segment is horizontally arranged, and the right end of the first groove segment is located above the right end of the water filtering net; and the second groove segment is arranged in parallel with the water filtering net, the left end thereof is in communication with the right end of the first groove segment, and the right end thereof is located above the right end of the water filtering net.

[0013] Optionally, the driving mechanism comprises a driving motor, a reciprocating screw rod and an extension part;

[0014] the upper end of the extension rod is fixedly connected with the sliding block; the reciprocating screw rod is threadedly connected with the lower end of the extension part, and the reciprocating screw rod is rotatably arranged on the separation tank; the driving motor is connected with the reciprocating screw rod and used for driving the reciprocating screw rod to rotate.

[0015] Optionally, the scraper comprises a fixed plate and a rotating plate; the fixed plate is fixedly connected with the sliding block; the fixed plate is provided with a rotating shaft and a blocking block; the rotating plate is provided with a clamping hole, and the upper end thereof extends upwardly to form a blocking part; the lower end edge of the rotating plate is in contact with the bottom of the sedimentation cavity and the water filtering net; the rotating plate is inserted into the rotating shaft through the clamping hole; and when the rotating plate is in a vertical state, the right side of the blocking part is in contact with the blocking block.

[0016] Optionally, the plurality of discharge ports are a first discharge port and a second discharge port; the first discharge port is located above the second discharge port.

[0017] The multi-stage screening assembly comprises a first filter screen, a second filter screen and an elastic member; the first filter screen and the second filter screen are both arranged obliquely, and the right end of each of the first filter screen and the second filter screen is located above the left end; the right end edge of each of the first filter screen and the second filter screen is rotationally connected to the right inner wall of the separation tank; the initial state of each of the first filter screen and the second filter screen is a first inclination angle, and when each of the first filter screen and the second filter screen is rotated downward to a second inclination angle, each of the first filter screen and the second filter screen is communicated with the corresponding first discharge port and second discharge port; the elastic member is used to restore each of the first filter screen and the second filter screen to the first inclination angle state when each of the first filter screen and the second filter screen is at the second inclination angle.

[0018] Optionally, the right side wall of the separation tank is provided with a first groove section and a second groove section; the first groove section is located above the second groove section; the elastic member comprises a first spring and a second spring; the first spring is connected to the right end edge of the first filter screen in the first groove section; and the second spring is connected to the right end edge of the second filter screen in the second groove section.

[0019] Optionally, the right side of the segmentation part is provided with a downward sliding slope.

[0020] Optionally, the separation tank is provided with a drain pipe; and the drain pipe is communicated with the upper half of the sedimentation cavity.

[0021] In the concrete waste separation device, the separation tank, the multi-stage screening assembly, the sediment storage cavity and the dredging assembly are provided, and the dredging assembly comprises a scraper, a water filtering part and a driving mechanism. The scraper can push the sludge at the bottom of the sedimentation cavity to the left by sliding to the right, and the sludge is pushed to the top of the segmentation part by the scraper under the action of the guide groove. Since the top end of the segmentation part is in clearance fit with the upper end of the sedimentation cavity, and the top end of the segmentation part is in clearance fit with the upper end of the sedimentation storage cavity, when the sludge is pushed to the top of the segmentation part by the scraper, the sludge falls into the sediment storage cavity through the bottom of the segmentation part, thereby completing the separation of the waste water and the sludge. The water filtering part filters the sludge pushed by the scraper, thereby preventing water from entering the sediment storage cavity, thereby reducing the water content of the sludge in the sediment storage cavity, and improving the efficiency of the later dehydration treatment of the waste. In summary, the concrete waste separation device can separate the concrete waste by multiple stages, thereby improving the separation efficiency of the concrete waste.

[0022] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] Some specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in different drawings denote the same or similar components or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

[0024] Figure 1 is a schematic structural diagram of a concrete waste separating device according to an embodiment of the present application;

[0025] Figure 2 is a schematic internal structural diagram of a concrete waste separating device according to an embodiment of the present application;

[0026] Figure 3 is a schematic structural diagram of a scraper in a concrete waste separating device according to an embodiment of the present application;

[0027] Figure 4 is a schematic structural diagram of a scraper in a concrete waste separating device according to an embodiment of the present application.

[0028] In the drawings: 100, separating tank; 110, feeding hopper; 120, first discharge port; 130, second discharge port; 140, guide groove; 141, first groove section; 142, second groove section; 150, drain pipe; 200, silt storage cavity; 210, dividing part; 211, lower sliding slope; 310, scraper; 311, fixed plate; 312, rotating shaft; 313, stop block; 314, rotating plate; 315, blocking part; 320, water filtering net; 330, driving motor; 340, reciprocating screw rod; 350, sliding block; 360, telescopic part; 410, first filter screen; 420, second filter screen; 430, first spring; 440, second spring. DETAILED DESCRIPTION

[0029] The concrete waste separating device according to the embodiments of the present application will be described below with reference to Figures 1 to 4 In the description of the embodiments, it should be understood that the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features, i.e. one or more of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features, unless otherwise specifically described, it indicates that other features and can further include other features.

[0030] Unless otherwise defined, the terms "set", "mount", "connected", "link", "fixed", "coupled" and the like shall be construed as broadly as possible, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly defined. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0031] In addition, in the description of the present embodiment, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the present embodiment, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" or "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0032] In the description of the present embodiment, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0033] Figure 1 is a schematic structural view of a concrete waste separation device, as Figure 1 shown, and referring to Figures 2 to 4 , the embodiment of the present application provides a concrete waste separation device, and the concrete waste separation device comprises a separation tank 100, a multi-stage screening assembly, a silt storage cavity 200 and a desilting assembly. The separation tank 100 is provided with a feed hopper 110 at the top, and a plurality of discharge ports are arranged on the left side of the separation tank 100. The multi-stage screening assembly is arranged in the separation tank 100 and can communicate with the plurality of discharge ports; the multi-stage screening assembly divides the separation tank 100 into a screening cavity and a sedimentation cavity from top to bottom;

[0034] The silt storage cavity 200 is located at the right side of the sedimentation cavity, and a partition 210 is arranged between the silt storage cavity 200 and the sedimentation cavity, the partition 210 is higher than the height of the material in the sedimentation cavity; the upper end of the partition 210 is in clearance fit with the upper end of the silt storage cavity 200;

[0035] The dredging assembly comprises a scraper 310, a water filtering part and a driving mechanism; the scraper 310 is arranged in the sedimentation cavity to slide in the left-right direction, and the lower end edge is in contact with the bottom of the sedimentation cavity; the separation tank 100 is provided with a guide groove 140 for guiding the lower end edge of the scraper 310 to slide to the upper end of the partition 210; the water filtering part is used for filtering the water in the material driven by the scraper 310 when the lower end edge of the scraper 310 slides to the upper end of the partition 210; and the driving mechanism is used for driving the scraper 310 to move left and right.

[0036] Specifically, the multi-stage screening assembly is used for separating the stone materials of different sizes in the concrete waste, so as to complete the preliminary treatment of the concrete waste. Further, the screening cavity is used for screening the waste, and the sedimentation cavity is used for sedimentation of the screened waste, so that the slurry part of the waste is located at the bottom of the sedimentation cavity, and the water in the waste is located in the upper half of the sedimentation cavity. Further, the partition 210 is used for making the sedimentation cavity and the silt storage cavity 200 independent of each other, so as to prevent the waste in the sedimentation cavity from flowing into the silt storage cavity 200.

[0037] Specifically, the scraper 310 slides to the right to push the sludge at the bottom of the sedimentation cavity to the left, and the sludge is pushed by the scraper 310 to the top of the partition 210 under the action of the guide groove 140. Further, since the top end of the partition 210 is in clearance fit with the upper end of the sedimentation cavity, and the top end of the partition 210 is in clearance fit with the upper end of the silt storage cavity 200, when the sludge is pushed by the scraper 310 to the top of the partition 210, the sludge falls into the silt storage cavity 200 by passing the bottom of the partition 210, so as to complete the separation of the waste water and the sludge. Further, the water filtering part filters the sludge pushed by the scraper 310, so as to prevent the water from entering the silt storage cavity 200, thereby reducing the water content of the sludge in the silt storage cavity 200, so as to improve the efficiency of the later dehydration treatment of the waste. In summary, the concrete waste separation device can separate the concrete waste through multi-stage separation of the waste, so as to improve the separation efficiency of the concrete waste.

[0038] In work, the concrete waste is introduced into the separation tank 100 through the feed hopper 110, and the waste first enters the screening cavity and is subjected to step-by-step screening by the multi-stage screening assembly. The multi-stage screening assembly classifies and screens the waste, and the screened stone materials are discharged from different discharge ports.

[0039] The material after multi-stage screening falls into the sedimentation cavity to be deposited, and the water and sludge (mortar) are separated by standing in the sedimentation cavity. The driving mechanism is started to drive the scraper 310 to move from left to right, and under the action of the guide groove 140, the scraper 310 pushes the sludge into the sludge storage cavity 200. At the same time, the water filtering part filters the sludge pushed by the scraper 310 in the process of pushing the sludge to the right, so as to complete the separation of the waste.

[0040] In some embodiments of the present application, as shown in Figure 1 and Figure 2 , the water filtering part includes a water filtering net 320, which is inclinedly arranged in the sedimentation cavity. The left end edge of the water filtering net 320 is fixedly connected with the bottom of the separation tank 100, and the right end edge is fixedly connected with the top end of the dividing part 210. The lower end edge of the scraper 310 is fixedly connected with the water filtering net 320 in the process of sliding to the upper end of the dividing part 210.

[0041] Specifically, the inclined arrangement of the water filtering net 320 can make the water in the sludge re-enter the sedimentation cavity downward through the water filtering net 320 under the action of gravity in the process of the sludge being pushed by the scraper 310 along the water filtering net 320 to the upper end of the dividing part 210, thereby reducing the water content of the sludge to achieve the effect of separating water and sludge. Further, the left end edge of the filter screen is gently connected with the bottom of the sedimentation cavity.

[0042] In some embodiments of the present application, as shown in Figure 1 and Figure 2 , a sliding block 350 connected with the scraper 310 is slidingly arranged in the guide groove 140. The guide groove 140 includes a first groove section 141 and a second groove section 142. The first groove section 141 is horizontally arranged, and the right end of the first groove section 141 is located above the right end of the water filtering net 320. The second groove section 142 is arranged parallel to the water filtering net 320, and the left end is in communication with the right end of the first groove section 141, and the right end is located above the right end of the water filtering net 320.

[0043] Specifically, the sliding block 350 slidingly drives the scraper 310 to move from left to right in the first groove section 141 and the second groove section 142. Further, the second groove section 142 is arranged to make the sliding block 350 drive the scraper 310 to slide from the right end to the left end of the water filtering net 320.

[0044] In some embodiments of the present application, as shown in Figure 1 and Figure 2 , the driving mechanism includes a driving motor 330, a reciprocating screw rod 340 and a telescopic part 360. The upper end of the telescopic rod is fixedly connected with the sliding block 350, the reciprocating screw rod 340 is threadedly connected with the lower end of the telescopic part 360, and the reciprocating screw rod 340 is rotatably installed on the separation tank 100. The driving motor 330 is connected with the reciprocating screw rod 340, and is used to drive the reciprocating screw rod 340 to rotate.

[0045] Specifically, the reciprocating screw rod 340 and the telescopic part 360 constitute a nut-screw mechanism, so that the telescopic part 360 moves left and right when the reciprocating screw rod rotates, thereby driving the slider 350 and the scraper 310 to move synchronously. Further, the telescopic part 360 can adaptively change the length because the slider 350 gradually rises when sliding right along the second groove segment 142.

[0046] In some embodiments of the present application, as shown in Figure 3 and Figure 4 , the scraper 310 comprises a fixed plate 311 and a rotating plate 314. The fixed plate 311 is fixedly connected to the slider 350; the fixed plate 311 is provided with a rotating shaft 312 and a blocking block 313; the rotating plate 314 is provided with a clamping hole, and an upper end extends upwardly with a blocking part 315; the lower end edge of the rotating plate 314 is in contact with the bottom of the sedimentation cavity and the water filter net 320; the rotating plate 314 is inserted into the rotating shaft 312 through the clamping hole; when the rotating plate 314 is in a vertical state, the right side of the blocking part 315 is in contact with the blocking block 313.

[0047] Specifically, the fixed plate 311 moves synchronously with the slider 350, and the blocking block 313 is located on the right side of the blocking part 315 of the rotating plate 314, so that the blocking block 313 blocks the rotating plate 314 from rotating left along the rotating shaft 312, thereby making the rotating plate 314 in a vertical state when the fixed plate 311 moves right, so as to facilitate the scraper 310 to push the sludge. Further, when the fixed plate 311 resets left, the blocking block 313 does not limit the rotation of the rotating plate 314, and the rotating plate 314 rotates right along the rotating shaft 312, thereby preventing the rotating plate 314 from pushing the sludge to the left end of the sludge storage cavity 200.

[0048] In some embodiments of the present application, as shown in Figure 1 and Figure 2As shown, the plurality of discharge ports are respectively a first discharge port 120 and a second discharge port 130, and the first discharge port 120 is located above the second discharge port 130. The multi-stage screening assembly comprises a first filter screen 410, a second filter screen 420 and an elastic member. The first filter screen 410 and the second filter screen 420 are both arranged in an inclined manner, and the right end of each of the first filter screen 410 and the second filter screen 420 is located above the left end, and the right end edge of each of the first filter screen 410 and the second filter screen 420 is rotationally connected to the right inner wall of the separation tank 100. The first filter screen 410 and the second filter screen 420 are in an initial state of a first inclination angle, and when the first filter screen 410 and the second filter screen 420 are rotated downward to a second inclination angle, the first filter screen 410 and the second filter screen 420 are respectively communicated with the corresponding first discharge port 120 and the second discharge port 130, and the elastic member is used to restore the first filter screen 410 and the second filter screen 420 to the first inclination angle state when the first filter screen 410 and the second filter screen 420 are at the second inclination angle.

[0049] Specifically, the inclined arrangement of the first filter screen 410 and the second filter screen 420 enables the waste to slide along the inclined surface on the filter screen, thereby improving the screening efficiency. Further, when the first filter screen 410 and the second filter screen 420 are both in the first inclination state, the first discharge port 120 and the second discharge port 130 are not communicated with the first filter screen 410 and the second filter screen 420, and at this time, the first discharge port 120 and the second discharge port 130 are in a closed state. Further, the first filter screen 410 and the second filter screen 420 are rotated downward under the action of the gravity of the waste, and the amount of material on the first filter screen 410 and the second filter screen 420 is positively correlated with the corresponding inclination angle of the first filter screen 410 and the second filter screen 420, thereby further improving the screening efficiency and preventing the accumulation of waste.

[0050] In some embodiments of the present application, as shown in Figure 1 and Figure 2 As shown, the right side wall of the separation tank 100 is provided with a first slot section 141 and a second slot section 142, and the first slot section 141 is located above the second slot section 142. The elastic member comprises a first spring 430 and a second spring 440. The first spring 430 is connected to the right end edge of the first filter screen 410 in the first slot section 141, and the second spring 440 is connected to the right end edge of the second filter screen 420 in the second slot section 142. Specifically, the first spring 430 and the second spring 440 are compressed and stored when the first filter screen 410 and the second filter screen 420 are rotated downward, and when the amount of material on the first filter screen 410 and the second filter screen 420 is reduced, the corresponding first spring 430 and second spring 440 release the elastic force, so that the first filter screen 410 and the second filter screen 420 (as Figure 2Further, the first spring 430 and the second spring 440 can vibrate the first filter screen 410 and the second filter screen 420 after recovery, thereby being able to contact a clogging state of the filter screen.

[0051] In some embodiments of the present application, as shown in Figure 1 and Figure 2 As shown, the right side of the dividing part 210 is provided with a downward sliding slope 211. Specifically, the downward sliding slope 211 can make the sludge accumulate from the top of the dividing part 210 to the right side of the sludge storage cavity 200.

[0052] In some embodiments of the present application, as shown in Figure 1 and Figure 2 As shown, the separating tank 100 is provided with a drain pipe 150; the drain pipe 150 is in communication with the upper half of the sedimentation cavity. Specifically, the setting of the drain pipe 150 can draw out the water in the sedimentation cavity after sedimentation to the outside, so as to recycle the water.

[0053] At this point, those skilled in the art should realize that, although the present application has been shown and described in detail in this paper, many other variants or modifications conforming to the principles of the present application can be directly determined or deduced according to the content disclosed in the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variants or modifications.

Claims

1. A concrete waste separating apparatus, characterised in that, The device comprises: a separation tank provided with a feeding hopper at the top and a plurality of discharge ports at the left side; a multi-stage screening assembly arranged in the separation tank and capable of communicating with the plurality of discharge ports; the multi-stage screening assembly divides the separation tank into a screening cavity and a sedimentation cavity from top to bottom; a sludge storage cavity located at the right side of the sedimentation cavity, a partition provided between the sludge storage cavity and the sedimentation cavity, the partition being higher than the height of the material in the sedimentation cavity, and the upper end of the partition in clearance fit with the upper end of the sludge storage cavity; a sludge removal assembly comprising a scraper, a water filtering part and a driving mechanism; the scraper is slidingly arranged in the sedimentation cavity in the left-right direction, with the lower end edge in contact with the bottom of the sedimentation cavity; the separation tank is provided with a guide groove for guiding the lower end edge of the scraper to slide to the upper end of the partition; the water filtering part is used to filter the water in the material carried by the scraper during the process of the lower end edge of the scraper sliding to the upper end of the partition; and the driving mechanism is used to drive the scraper to move left and right.

2. The concrete waste separation device according to claim 1, wherein the water filtering part comprises a water filtering net; the water filtering net is arranged in the sedimentation cavity in an inclined manner, with the left end edge of the water filtering net fixedly connected to the bottom of the separation tank and the right end edge fixedly connected to the top end of the partition; and the lower end edge of the scraper is fixedly connected to the water filtering net during the process of the scraper sliding to the upper end of the partition.

3. The concrete waste separation device according to claim 2, wherein a sliding block connected to the scraper is slidingly arranged in the guide groove; the guide groove comprises a first groove segment and a second groove segment; the first groove segment is horizontally arranged, with the right end of the first groove segment located above the right end of the water filtering net; and the second groove segment is arranged in parallel with the water filtering net, with the left end in communication with the right end of the first groove segment and the right end located above the right end of the water filtering net.

4. The concrete waste separation device according to claim 3, wherein the driving mechanism comprises a driving motor, a reciprocating screw rod and an extension part; the upper end of the extension part is fixedly connected to the sliding block; the reciprocating screw rod is threadedly connected to the lower end of the extension part, and is rotatably mounted on the separation tank; and the driving motor is connected to the reciprocating screw rod to drive the reciprocating screw rod to rotate.

5. The concrete waste separation device according to claim 3, wherein the scraper comprises a fixed plate and a rotating plate; the fixed plate is fixedly connected to the sliding block; the fixed plate is provided with a rotating shaft and a blocking block; the rotating plate is provided with a clamping hole, and the upper end thereof extends upwardly to form a blocking part; the lower end edge of the rotating plate is in contact with the bottom of the sedimentation cavity and the water filtering net; the rotating plate is inserted into the rotating shaft through the clamping hole; and when the rotating plate is in a vertical state, the right side of the blocking part is in contact with the blocking block.

6. The concrete waste separation device according to claim 1, wherein the plurality of discharge ports are respectively a first discharge port and a second discharge port; and the first discharge port is located above the second discharge port. The multi-stage screening assembly comprises a first filter screen, a second filter screen and an elastic member; the first filter screen and the second filter screen are both arranged obliquely, and the right end of each is located above the left end; the right end edge of each of the first filter screen and the second filter screen is rotationally connected to the right inner wall of the separation tank; the initial state of the first filter screen and the second filter screen is a first inclination angle, and when the first filter screen and the second filter screen are rotated downward to a second inclination angle, the first filter screen and the second filter screen are respectively communicated with the first discharge port and the second discharge port; the elastic member is used to restore the first filter screen and the second filter screen to the first inclination angle state when the first filter screen and the second filter screen are at the second inclination angle.

7. The concrete waste separation device according to claim 6, wherein, the right side wall of the separation tank is provided with a first groove section and a second groove section; the first groove section is located above the second groove section; the elastic member comprises a first spring and a second spring; the first spring is connected to the right end edge of the first filter screen in the first groove section; and the second spring is connected to the right end edge of the second filter screen in the second groove section.

8. The concrete waste separation device according to claim 1, wherein, a lower sliding slope is arranged on the right side of the dividing part.

9. The concrete waste separation device according to claim 1, wherein, a drain pipe is arranged on the separation tank; and the drain pipe is communicated with the upper half of the sedimentation cavity.

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