Arc-shaped conveyor suitable for flotation of building solid waste

Abstract

The arc-shaped conveyor comprises a machine head part, a middle part and a machine tail part which are connected in sequence, and the machine head part, the middle part and the machine tail part are provided with a conveying structure in a penetrating mode; the middle part is lower than the machine head part and the machine tail part, the middle part comprises a water inlet channel and a flotation water cabin which are communicated with each other, water is supplied by the water inlet channel to wash aggregate conveyed by the conveying structure, the water flow direction of the middle part is perpendicular to the movement direction of the conveying structure, and a water diversion plate is arranged at the water inlet channel to stabilize the flotation water flow direction. The problem of online flotation impurity removal of the building solid waste pretreatment production line can be solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building solid waste flotation, and particularly relates to an arc-shaped conveyor suitable for building solid waste flotation. BACKGROUND

[0002] The statements herein merely provide background technology related to the present application, and do not necessarily constitute prior art.

[0003] The building solid waste has recycled aggregate for reuse, and various impurities such as wood chips, paper chips, grass fragments, etc. are mixed in the recycled aggregate in the reuse process of the building solid waste. If the impurities cannot be removed from the recycled aggregate, the quality of the recycled concrete will be affected.

[0004] In the existing processing mode, when the above-mentioned various impurities are removed, water washing or special flotation machine is usually used. The water washing mode cannot wash the position where water flows, and the impurities are easily clamped between the recycled aggregate, resulting in incomplete removal of the impurities. Although the special flotation machine can completely remove the impurities, the overall size of the flotation machine is large, and the recycled aggregate needs to be sent into the flotation machine and then transported out of the flotation machine when the recycled aggregate is selected by the flotation machine. Therefore, the flotation machine cannot be used in the building solid waste crushing process, and the efficiency is low and the cost is high. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the present application is to provide an arc-shaped conveyor suitable for building solid waste flotation, which can solve the problem of online flotation and removal of impurities in the building solid waste pretreatment production line.

[0006] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme: In the first aspect, the present application provides an arc-shaped conveyor suitable for building solid waste flotation, which comprises a head part, an intermediate part and a tail part connected in sequence, and the head part, the intermediate part and the tail part are provided with a conveying structure; the intermediate part is arranged lower than the head part and the tail part, and the intermediate part comprises a water inlet channel and a flotation water tank connected in communication, water supplied by the water inlet channel is used to flush the aggregate conveyed by the conveying structure, the water flow direction of the intermediate part is perpendicular to the movement direction of the conveying structure, and a water distribution plate is arranged at the water inlet channel to stabilize the flotation water flow direction.

[0007] In the process that the conveying structure conveys the building solid waste, water enters the intermediate part hydraulic flotation area from the water inlet channel, the water flow direction is stabilized by the water distribution plate, and the water flow is opposite to the movement direction of the conveying structure; when the recycled aggregate passes through the conveying structure, the water flow flushes the building recycled aggregate, and the mechanical vibration of the conveying structure plays a role of turning the recycled aggregate, so that the impurities in the recycled aggregate float from the recycled aggregate, and the water flow drives the impurities in the water to flow to the flotation water tank, so as to separate the impurities and the recycled aggregate.

[0008] As a further technical solution, the water distribution plate is arranged in a wave shape.

[0009] As a further technical solution, the side of the floating water tank is provided with an impurity removal tank, and an impurity discharge door is arranged at the impurity removal tank.

[0010] As a further technical solution, the impurity removal tank comprises an impurity removal grid, a drain pipe is arranged below the impurity removal grid, the drain pipe is connected with a wastewater treatment cabin, and the wastewater treatment cabin is connected with the water inlet channel.

[0011] As a further technical solution, the impurity removal grid is arranged in an inclined manner.

[0012] As a further technical solution, the impurity discharge door comprises a door cover connected with a hydraulic cylinder, and a door seal is arranged at the door cover.

[0013] As a further technical solution, the bottom of the floating water tank is provided with a wastewater pipe, a filter screen is arranged at the wastewater pipe, and the wastewater pipe is connected with a wastewater treatment cabin.

[0014] As a further technical solution, the feeding end of the machine head is higher than the connecting end of the machine head and the middle part, the machine head is provided with a power part connected with a conveying structure, and the discharging end of the machine tail is higher than the connecting end of the machine tail and the middle part.

[0015] As a further technical solution, the conveying structure comprises a chain plate, a scraper is fixedly arranged on the chain plate, and the chain plate is connected with the power part.

[0016] As a further technical solution, a cover shell is arranged outside the machine head, the middle part and the machine tail, the cover shell is arranged in an arc shape, the cover shell forms a closed arc-shaped cavity, a feeding port is arranged at the top of the machine head corresponding to the cover shell, and a discharging port is arranged at the bottom of the machine tail corresponding to the cover shell.

[0017] The arc-shaped conveyor for building solid waste flotation of the present application is used for conveying building aggregates from the machine head to the machine tail, building aggregates are floated in the hydraulic flotation area formed in the middle part during the conveying of the building aggregates, impurities in the building aggregates are removed, and online flotation operation is realized.

[0018] The arc-shaped conveyor for building solid waste flotation of the present application is used for conveying building aggregates from the machine head to the machine tail, building aggregates are floated in the hydraulic flotation area formed in the middle part during the conveying of the building aggregates, impurities in the building aggregates are removed, and online flotation operation is realized.

[0019] The arc-shaped conveyor suitable for building solid waste flotation of the present application is provided with a floating water tank impurity removal box, so that the impurities floating by water enter the impurity removal box, the impurity removal grid is arranged in the impurity removal box to separate the impurities in water, the impurities are blocked by the impurity removal grid to separate from water, and the water enters the waste water treatment cabin through the water drain pipe.

[0020] The arc-shaped conveyor suitable for building solid waste flotation of the present application is provided with a floating water tank waste water pipe, after water flow passes through the floating water tank, part of water passes through the filter screen at the bottom of the floating water tank, enters the waste water treatment cabin through the waste water pipe, and the waste water in the waste water treatment cabin is treated and then pumped into the floating area by the water pump, so that the water is recycled.

[0021] The arc-shaped conveyor suitable for building solid waste flotation of the present application is provided with a machine tail part higher than the middle part, so that the machine tail part is higher than the floating water surface, and most of the water in the recycled aggregate flows to the floating area in the movement process of the recycled aggregate, so that the recycled aggregate is preliminarily drained. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings accompanying the specification of the present application serve to provide a further understanding of the present application, the schematic embodiments of the present application and the description thereof serve to explain the present application, and do not constitute an improper limitation on the present application.

[0023] Figure 1 is a schematic view of the arc-shaped conveyor suitable for building solid waste flotation of the present application according to one or more embodiments of the present application; Figure 2 is a schematic view of the machine head part according to one or more embodiments of the present application; Figure 3 is a schematic view of the power part according to one or more embodiments of the present application; Figure 4 is a top view of the inside of the middle part according to one or more embodiments of the present application; Figure 5 is a transverse sectional view of the middle part according to one or more embodiments of the present application; Figure 6 is a schematic view of the water distribution plate according to one or more embodiments of the present application; Figure 7 is a schematic view of the machine tail part according to one or more embodiments of the present application; In the figure: 1-machine head part, 2-middle part, 3-housing, 4-machine tail part; 11-power part, 12-waste removal hole, 13-inspection hole, 14-feeding port, 15-head structure, 16-observation hole, 17-cleaning cover; 111 - motor, 112 - coupling, 113 - reducer, 114 - bearing, 115 - transmission shaft, 116 - chain plate, 117 - sprocket, 118 - housing; 21 - impurity discharge door, 211 - hydraulic cylinder, 212 - door cover, 213 - door seal; 22 - impurity removal tank, 221 - impurity removal grid, 222 - drain pipe flange, 223 - drain pipe; 23 - flotation water tank, 231 - filter screen, 232 - waste water pipe, 233 - filter screen pressing plate, 234 - lower bottom plate of flotation water tank, 235 - support plate; 24 - water inlet channel, 241 - water distribution plate, 242 - water inlet flange, 243 - water inlet pipe; 41 - tail structure, 42 - tensioning device, 43 - tensioning wheel, 44 - driven wheel, 45 - discharge port.

[0024] The mutual distance or size between each part is exaggerated for showing the position of each part, and the schematic view is only for illustration. DETAILED DESCRIPTION

[0025] It should be noted that the following detailed description is illustrative only, and is intended to provide further description in order to provide a further understanding of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0026] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. For the convenience of description, if "upper", "lower", "left", "right" are used in the present application, they only mean the same direction as the upper, lower, left and right directions of the drawing itself, and do not limit the structure, but only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] The terms "mounting", "connecting", "connecting", "fixing" and the like in the present application should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through intermediate medium, it can be internal connection of two elements, or interaction relationship between two elements, for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In a typical embodiment of the present application, as shown in Figure 1 An arc-shaped conveyor suitable for building solid waste flotation is provided, which is in the form of arc-shaped with high middle and low ends, and building solid waste is floated in the middle part; it comprises a head part 1, a middle part 2 and a tail part 4, the head part 1, the middle part 2 and the tail part 4 are connected in sequence to form the whole machine, the head part 1 and the tail part 4 are connected to the two sides of the middle part 2 respectively, the head part 1, the middle part 2 and the tail part 4 are provided with a cover 3 outside, the cover is also in the form of arc-shaped, a conveying structure is fixedly arranged in the cover 3, the conveying structure is arranged through the head part, the middle part and the tail part, and the conveying structure is also in the form of arc-shaped. The middle part 2 of the conveyor is low, and the head part 1 and the tail part 4 are high at both ends; the head part 1 is the power part of the conveyor and the input part of the recycled aggregate, the middle part 2 is a special flotation area, and the tail part 4 is the tensioning part of the conveyor and the output part of the recycled aggregate; the cover 3 forms a closed arc-shaped cavity, and the middle part of the cover is used for mounting the middle part, which plays the role of a flotation tank.

[0029] The arc-shaped conveyor of the present application conveys building aggregate from the head part to the tail part, floats the building aggregate in the middle part while conveying the building aggregate, removes impurities in the building aggregate, and realizes the flotation operation.

[0030] The feeding end of the head part 1 is higher than the connecting end of the head part 1 and the middle part 2, that is, the head part 1 is inclined downward from the feeding end to the connecting end of the head part 1 and the middle part 2. The head part 1 comprises a head structure 15, the head structure 15 is arranged inside the cover 3, one end of the conveying structure is fixedly arranged on the head structure 15, and the conveying structure is arranged and extends from the head part 1 to the tail part 4; the head structure 15 comprises a power part 11 for providing power for the conveying structure.

[0031] The power part 11 comprises a motor 111, the motor 111 is connected with a speed reducer 113 through a shaft coupling 112, the speed reducer 113 is connected with a transmission shaft 115, the transmission shaft 115 is provided with a bearing 114 at the end, and the transmission shaft 115 drives the conveying structure to work.

[0032] In this embodiment, the conveying structure adopts a scraper conveying form, which includes a chain plate 116, a scraper fixedly arranged on the chain plate 116, and one side or both sides of the chain plate 116 fixedly connected with a chain wheel 117 fixed to a transmission shaft 115. Thus, the power of the motor 111 is transmitted to the chain wheel 117 through the shaft coupling 112, the speed reducer 113 and the transmission shaft 115, and then drives the chain plate 116 to operate, and the building recycled aggregate is moved forward by the scraper to be conveyed. The chain wheel 117 and the chain plate 116 are arranged in the housing 118 of the cover shell 3.

[0033] Further, the cover shell 3 is provided with a feeding port 14 corresponding to the top of the head part 1, so as to feed the conveyor; the cover shell 3 is provided with a waste removal hole 12 corresponding to the bottom of the head part 1, so as to facilitate waste removal; the cover shell 3 is provided with a maintenance hole 13 corresponding to the side of the head part 1, so as to facilitate the maintenance of the internal structure of the head part 1; and the cover shell 3 is further provided with an observation hole 16 and a cleaning cover 17 corresponding to the top of the head part 1, so as to facilitate observation and cleaning during operation.

[0034] As shown in Figures 4-5 , the middle part 2 includes a water inlet channel 24, a flotation water tank 23, an impurity removal tank 22 and an impurity discharge door 21. The middle part 2 is provided with a hydraulic flotation area, the hydraulic flotation area is provided with the flotation water tank 23, the flotation water tank 23 and the water inlet channel 24 are communicated, and the aggregate conveyed by the conveying structure is washed by water supplied from the water inlet channel; the flotation water tank 23 and the water inlet channel 24 can be arranged on both sides of the conveying structure respectively, the water inlet channel 24 is arranged on one side of the conveying structure, water is supplied from one side of the conveying structure, and the water flow flows from one side of the conveying structure to the other side of the flotation water tank 23, that is, the direction of the water flow is perpendicular to the direction of the chain plate movement; the impurity removal tank 22 is arranged on one side of the flotation water tank 23 (and can be arranged on the opposite side of the water inlet channel), and the impurity discharge door 21 is arranged on the impurity removal tank 22.

[0035] Further, a water distribution plate 241 is arranged at the water inlet channel 24, as shown in Figure 6 , the water distribution plate 241 is arranged in a wave shape, and when water is supplied from the water inlet channel, the water flow passes through the water distribution plate, and the water distribution plate plays a role of directing and stabilizing the flow rate of the water flow.

[0036] The water distribution plate 241 can be arranged one or more; when one water distribution plate is arranged, the water distribution plate is fixed to the inner bottom of the water inlet channel; when multiple water distribution plates are arranged, the multiple water distribution plates are arranged in sequence and at intervals, and adjacent two water distribution plates can be arranged in an up-and-down staggered manner. When the water flow hits the water distribution plate, the force is dispersed and transmitted to the adjacent water distribution plate, and through the interaction of each water distribution plate, the water flow wave energy is consumed, and the role of stabilizing the flow is played.

[0037] As shown in Figure 5 , the water inlet channel 24 is connected with a water inlet pipe 243, and a water inlet flange 242 is arranged at the water inlet pipe 243.

[0038] Further, the flotation water tank 23 is provided with a waste water pipe 232 at the lower bottom plate 234 of the flotation water tank 23, a filter screen 231 is arranged at the waste water pipe 232, and a filter screen pressing plate 233 is arranged at the filter screen 232. The waste water pipe 232 is connected with a waste water treatment tank (not shown in the figure), and the waste water treatment tank can be connected with the water inlet channel 24 to realize the recycling of water.

[0039] A support plate 235 is arranged at the flotation water tank 23 to support the flotation water tank.

[0040] Further, the impurity removal tank 22 is arranged below the water level line in the flotation water tank 23. The impurity removal tank 22 includes an impurity removal grid 221, which is arranged in an inclined manner to gradually filter the impurities during the falling process of the impurities to separate the impurities. Through the arrangement of the inclined grid, the separation of the impurities can be well achieved. When the water with impurities passes through the inclined grid, the impurities on the impurity removal grid can easily fall to the lowest position of the inclined plate surface after the water is separated.

[0041] A water discharge pipe 223 is arranged below the impurity removal grid 221, and a water discharge pipe flange 222 is arranged at the water discharge pipe. The water discharge pipe 223 is connected with the waste water treatment tank to treat the waste water filtered by the impurity removal grid for recycling.

[0042] An impurity discharge door 21 is arranged at the side of the impurity removal tank 22. The impurity discharge door 21 includes a door cover 212 connected with a hydraulic cylinder 211 to open the door cover 212 to discharge the impurities by the hydraulic cylinder 211. A door seal 213 is arranged at the door cover 212 to seal.

[0043] The outer shell of the middle part is arc-shaped, and the most middle position is the hydraulic flotation area. The two sides of the middle part corresponding to the hydraulic flotation area are arc-shaped, which is beneficial to arrange the flotation related pipes and water distribution plates and is beneficial to realize stable water flow. The pressure water of the water pump enters the hydraulic flotation area through the water inlet channel 24, passes through the water distribution plate 241, and stabilizes the direction of the flotation water flow. The water flow is perpendicular to the chain plate movement direction (the water flow direction is perpendicular to the chain plate movement direction). When the regenerative aggregate passes through the conveyor, the water flow washes the building regenerative material. By using the mechanical vibration of the conveyor chain plate and the turning effect of the scraper during the movement, the impurities in the regenerative aggregate are floated from the regenerative aggregate, and the water flow drives the impurities in the water to flow to the flotation water tank. The impurity removal tank is arranged below the water level line, and the impurities in the water enter the impurity removal tank through the flotation water tank. The water flows through the floating water tank, part of the water passes through the filter screen at the bottom of the floating water tank, enters the waste water treatment tank through the waste water pipe, the discharge speed of the waste water pipe is controlled by a special regulating valve to control the height of the floating water level during the floating, the waste water in the waste water treatment tank is treated and then pumped into the floating area by the water pump to realize the reuse of water, and the other part of the water drives the floating impurities into the impurity removal tank, the impurity removal tank is provided with an impurity removal grid to separate the impurities in the water, the impurities are separated from the water by the impurity removal grid, and the water enters the waste water treatment tank through the drain pipe.

[0044] Further, a float ball switch can be arranged at the impurity removal tank 22, the float ball switch is connected with the controller, the controller is connected with the hydraulic cylinder 211, when the impurities in the impurity removal tank are too much, the impurities will trigger the float ball switch, the switch is actuated, the controller controls the hydraulic cylinder to act, the door cover is opened by the hydraulic cylinder, and the impurities are discharged through the impurity discharge door and enter the impurity collection tank.

[0045] The tail part 4 is higher than the middle part 2, and the discharge end of the tail part 4 is higher than the connecting end of the tail part 4 and the middle part 2, that is, the tail part 4 is arranged upwardly and obliquely from the connecting end of the tail part 4 and the middle part 2 to the discharge end, so that the tail part 4 is higher than the floating water surface.

[0046] The tail part 4 comprises a tail part structure 41, which is fixedly installed on other structures of the tail part 4, the tail part 4 is provided with a driven wheel 44 connected with the chain plate of the conveying structure, and the tail part 4 is further provided with a tensioning wheel 43 and a tensioning device 42 to tension the running chain, and the tensioning device can adopt a spring tensioning mode; the cover 3 is provided with a discharge port 45 corresponding to the bottom of the tail part 4 to discharge the recycled aggregate.

[0047] After the recycled aggregate is subjected to the hydraulic flotation in the middle part floating area, the recycled aggregate is continuously driven into the tail part by the chain plate, the tail part is higher than the floating water surface, and most of the water in the recycled aggregate flows into the floating area during the movement of the recycled aggregate in the tail part, so that the recycled aggregate is preliminarily drained.

[0048] It can be understood that, since the overall conveyor adopts an arc-shaped form, the head part and the tail part are both higher than the floating water surface, and the floating water has no influence on the machinery of the head part and the tail part, so that the electrical equipment is effectively protected.

[0049] The conveyor of the present application can realize the flotation of the recycled aggregate while conveying the recycled aggregate in the building, so that the special flotation machine is not needed in the production line, and the equipment cost is reduced.

[0050] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. An arc-shaped conveyor suitable for flotation of construction solid waste, characterized in that, The machine includes a head section, a middle section, and a tail section connected in sequence, with a conveying structure running through the head section, the middle section, and the tail section. The middle section is set lower than the head section and the tail section, and includes a connected water inlet channel and a flotation water chamber. Water is supplied from the water inlet channel to wash the aggregate conveyed by the conveying structure. The water flow direction in the middle section is perpendicular to the movement direction of the conveying structure. A water divider is installed at the water inlet channel to stabilize the flotation water flow direction.

2. The arc-shaped conveyor for flotation of construction solid waste as described in claim 1, characterized in that, The water divider plate is designed to be wave-shaped.

3. The arc conveyor for flotation of construction solid waste as described in claim 1, characterized in that, The flotation tank is equipped with an impurity removal box on its side, and an impurity discharge door is provided at the impurity removal box.

4. The arc conveyor for flotation of construction solid waste as described in claim 3, characterized in that, The impurity removal box includes an impurity removal grid, a drain pipe is installed below the impurity removal grid, the drain pipe is connected to the wastewater treatment chamber, and the wastewater treatment chamber is connected to the inlet channel.

5. The arc conveyor for flotation of construction solid waste as described in claim 4, characterized in that, The impurity removal grid is set at an angle.

6. The arc conveyor for flotation of construction solid waste as described in claim 3, characterized in that, The impurity discharge door includes a door cover, which is connected to a hydraulic cylinder, and a door seal is provided at the door cover.

7. The arc conveyor for flotation of construction solid waste as described in claim 1, characterized in that, A wastewater pipe is installed at the bottom of the flotation water chamber, and a filter screen is installed at the wastewater pipe. The wastewater pipe is connected to the wastewater treatment chamber.

8. The arc conveyor for flotation of construction solid waste as described in claim 1, characterized in that, The feed end of the machine head is higher than the connection end between the machine head and the middle part. The machine head is equipped with a power unit connected to the conveying structure. The discharge end of the machine tail is higher than the connection end between the machine tail and the middle part.

9. The arc conveyor for flotation of construction solid waste as described in claim 8, characterized in that, The conveying structure includes a chain plate, on which scrapers are fixedly installed, and the chain plate is connected to the power unit.

10. The arc conveyor for flotation of construction solid waste as described in claim 1, characterized in that, The machine head, middle section, and tail section are equipped with covers, which are arc-shaped and form closed arc-shaped cavities. The covers are provided with a feed inlet at the top of the machine head and a discharge outlet at the bottom of the machine tail.

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