Feeding mechanism for construction waste recycled aggregate processing

Abstract

The utility model provides a feeding mechanism for processing construction waste recycled aggregate, which comprises a fine material bin and a coarse material bin, a rotating drum is arranged above the fine material bin and the coarse material bin in a crossing manner, a transmission shaft is rotatably connected in the rotating drum, the outer part of the transmission shaft is fixedly connected with a conveying screw positioned outside the rotating drum, and the conveying screw is fixedly connected with a transmission shaft. And a control combination for controlling the rotating drum and the transmission shaft to rotate in different directions is arranged at one end of the rotating drum. According to the utility model, a rotary drum is arranged above a fine material bin and a coarse material bin, a conveying screw is arranged in the rotary drum, a fine material screening hole and a coarse material screening hole which are respectively opposite to the fine material bin and the coarse material bin are formed in the peripheral wall of the rotary drum, and both the rotary drum and the conveying screw are rotatably arranged; when the rotary drum and the conveying screw are controlled to rotate in different directions, conveying and sorting of the mixed recycled aggregate can be achieved, sorted coarse materials and sorted fine materials can enter the coarse material bin and the fine material bin respectively, and compared with the prior art, the mixed recycled aggregate feeding and sorting device has the advantage that the mixed recycled aggregate is fed and sorted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of recycled aggregate processing, and specifically to a feeding mechanism for building waste recycled aggregate processing. BACKGROUND

[0002] The concrete mixing building mainly comprises five systems such as a mixing host, a material weighing system, a material conveying system, a material storage system and a control system, and other auxiliary facilities; in the mixing, the material conveying system uses a belt conveying more, and the belt conveying has the advantages of long conveying distance, high efficiency and low failure rate. The belt conveying is mainly suitable for the mixing station with the aggregate temporary storage bin, and can improve the production efficiency of the mixing station.

[0003] The utility model with publication number CN214419190U proposes an aggregate feeding device, which comprises a conveying belt for conveying materials, one side of the conveying belt is provided with a mixing building for stirring materials, a distribution bin is arranged in the mixing building, a feeding port is formed in the top of the distribution bin, a discharging port is formed in the bottom of the distribution bin, a distribution chute is arranged at the discharging port, a coarse material bin and a fine material bin are further arranged in the mixing building, the coarse material bin and the fine material bin are arranged side by side, the distribution chute is used for conveying materials to the coarse material bin or the fine material bin, and a switching assembly for switching the flow direction of materials is further arranged in the distribution chute. The application has the effect of facilitating feeding.

[0004] However, the above-mentioned prior art still has the following problems in use: when the recycled aggregate has different particle sizes, the distribution bin arranged in the above-mentioned prior art plays a role in switching the flow of recycled aggregate with different particles, that is, when the recycled aggregate for feeding is coarse particles, the recycled aggregate is guided into the coarse material bin through the distribution bin, and vice versa. However, the distribution bin does not have a sorting function, specifically, when fine materials and coarse materials are mixed in the recycled aggregate, the distribution bin cannot sort them.

[0005] Therefore, the utility model provides a feeding mechanism for building waste recycled aggregate processing. UTILITY MODEL CONTENTS

[0006] In view of the problems of the prior art, the utility model aims to provide a feeding mechanism for building waste recycled aggregate processing to solve the problems in the background art. The utility model has the functions of sorting and conveying coarse materials and fine materials in the recycled aggregate for feeding, and also has the function of sorting and clearing blockage, thereby improving the reliability of sorting and processing.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a feeding mechanism for processing recycled aggregates from construction waste, comprising a fine material bin and a coarse material bin, with a rotating drum spanning across the top of the fine and coarse material bins. A drive shaft is rotatably connected inside the rotating drum, and a conveying screw located outside the rotating drum is fixedly connected to the outside of the drive shaft. One end of the rotating drum is provided with a control assembly for controlling the rotating drum and the drive shaft to rotate in opposite directions. A feed pipe is provided on the end of the rotating drum near the fine material bin. The outer peripheral wall of the rotating drum has two sections of fine screening holes and coarse screening holes, which are respectively opposite to the fine and coarse material bins.

[0008] Furthermore, a bracket is fixedly connected to the opposite side of the fine material bin and the coarse material bin, and a positioning sleeve fitted on the outside of the rotating drum is fixedly connected to the top of the bracket, and the positioning sleeve and the rotating drum are rotatably connected.

[0009] Furthermore, the control assembly includes a control motor, a drive gear, a driven gear ring, and a driven gear. A base plate is welded to one side of the bracket via a support. The control motor is fixedly mounted on the top of the base plate, and its output shaft is fixedly connected to the drive gear. The driven gear ring is fixedly sleeved on the outside of the rotating drum. One end of the transmission shaft is fixedly connected to the driven gear located outside the rotating drum. The driven gear and the driven gear ring mesh with the drive gear simultaneously.

[0010] Furthermore, an adapter sleeve is fitted around the other end of the rotating drum, and an adapter cylinder with one end fitted inside the adapter sleeve is welded to the bottom of the feed pipe. The adapter cylinder and the adapter sleeve are rotatably fitted together and fixedly connected to the bracket. One end of the conveying screw extends into the adapter cylinder.

[0011] Furthermore, the other end of the drive shaft is rotatably connected to the other end of the adapter cylinder.

[0012] Furthermore, a positioning shaft located above the rotating drum is fixedly connected to the top of the bracket, and a clearing roller is sleeved on the positioning shaft, which is respectively opposite to the fine screen orifice and the coarse screen orifice.

[0013] Furthermore, the unblocking roller includes a roller sleeve rotatably connected to the positioning shaft and a rubber sleeve sleeved outside the roller sleeve. The bottom of the rubber sleeve abuts against the rotating drum, and its outer peripheral wall is fixedly connected with uniformly distributed protrusions.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this invention, a rotating drum is installed above the fine material bin and the coarse material bin, and a conveying screw is installed inside the rotating drum. Fine screening holes and coarse screening holes are respectively opened on the outer peripheral wall of the rotating drum, which are opposite to the fine material bin and the coarse material bin. Both the rotating drum and the conveying screw are rotatable. When the rotating drum and the conveying screw are controlled to rotate in opposite directions, the mixed recycled aggregate can be transported and sorted. The sorted coarse and fine materials will enter the coarse material bin and the fine material bin respectively. Compared with the prior art, this invention has the advantage of sorting and feeding mixed recycled aggregate.

[0016] In this invention, a positioning shaft is provided above the rotating drum, and two unblocking rollers are sleeved on the positioning shaft. The unblocking rollers are provided with protrusions. When the rotating drum rotates, the protrusions will insert into the fine screen material hole and the coarse screen material hole to clear the blockage in the two types of holes. This arrangement enables the feeding device to have the function of sorting and unblocking, ensuring the efficiency of sorting and feeding recycled aggregates. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a feeding mechanism for processing recycled aggregates from construction waste according to this utility model;

[0018] Figure 2 for Figure 1 A magnified diagram of the central "a";

[0019] Figure 3 for Figure 1 The main view.

[0020] In the diagram: 1. Fine material bin; 2. Coarse material bin; 3. Rotary drum; 31. Fine screen orifice; 32. Coarse screen orifice; 33. Adapter sleeve; 4. Drive shaft; 5. Conveying screw; 6. Control assembly; 61. Control motor; 62. Drive gear; 63. Driven ring; 64. Driven gear; 7. Feed pipe; 71. Adapter drum; 8. Support; 81. Positioning sleeve; 82. Seat plate; 83. Positioning shaft; 9. Unblocking roller; 91. Roller sleeve; 92. Rubber sleeve; 921. Protrusion. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1 to 3This utility model provides a technical solution: a feeding mechanism for processing recycled aggregate from construction waste, including a fine material bin 1 and a coarse material bin 2. A rotating drum 3 is horizontally arranged above the fine material bin 1 and the coarse material bin 2. In a preferred embodiment, a support 8 is fixedly connected to the opposite side of the fine material bin 1 and the coarse material bin 2. A positioning sleeve 81 is fixedly connected to the top of the support 8 and is sleeved on the outside of the rotating drum 3. The positioning sleeve 81 and the rotating drum 3 are rotatably connected. The inner cavity of the rotating drum 3 is the space for conveying the mixed recycled aggregate. A drive shaft 4 is rotatably connected inside the rotating drum 3. A conveying screw 5 located outside the rotating drum 3 is fixedly connected to the outside of the drive shaft 4. When the rotating drum 3 rotates, the mixed recycled aggregate inside it will tumble. When the drive shaft 4 rotates, the conveying screw 5 will unidirectionally convey the mixed recycled aggregate tumbling inside the rotating drum 3. The outer peripheral wall of the rotating drum 3 is provided with two sections of fine screening holes 31 and coarse screening holes 32, which are respectively opposite to the fine material bin 1 and the coarse material bin 2. When the mixed recycled aggregate tumbling and moving inside the rotating drum 3 passes through the fine screening holes 31 and the coarse screening holes 32 in sequence, the fine material will fall into the fine material bin 1 after passing through the fine screening holes 31, and the coarse material will fall into the coarse material bin 2 after passing through the coarse screening holes 32.

[0023] Furthermore, one end of the rotating drum 3 is provided with a control assembly 6 for controlling the rotating drum 3 and the drive shaft 4 to rotate in opposite directions.

[0024] Specifically, the control assembly 6 includes a control motor 61, a drive gear 62, a driven gear ring 63, and a driven gear 64. A base plate 82 is welded to one side of the bracket 8 via a support. The control motor 61 is fixedly mounted on the top of the base plate 82, and its output shaft is fixedly connected to the drive gear 62. The driven gear ring 63 is fixedly sleeved on the outside of the rotating drum 3. The driven gear ring 63 has an internal gear sleeve structure. One end of the transmission shaft 4 is fixedly connected to the driven gear 64 located outside the rotating drum 3. The driven gear 64 and the driven gear ring 63 mesh with the drive gear 62 simultaneously. Thus, when the drive gear 62 rotates, it will drive the driven gear ring 63 and the driven gear 64 to rotate in opposite directions.

[0025] The rotary drum 3 is equipped with a feed pipe 7 at one end near the fine material bin 1. The function of the feed pipe 7 is to guide the mixed recycled aggregate conveyed by the external conveyor belt into the rotary drum 3.

[0026] Specifically, an adapter sleeve 33 is fitted around the other end of the rotating drum 3, and the adapter sleeve 33 and the rotating drum 3 are fixedly connected during use. An adapter cylinder 71, with one end fitted inside the adapter sleeve 33, is welded to the bottom of the feed pipe 7. This adapter cylinder 71 and the adapter sleeve 33 are rotatably fitted together and fixedly connected to the bracket 8. In practice, a bearing can be installed between the adapter cylinder 71 and the adapter sleeve 33, and sealing rings can be installed at the opposite ends of the adapter cylinder 71 and the rotating drum 3. One end of the conveying screw 5 extends into the adapter cylinder 71, and the other end of the drive shaft 4 is rotatably connected to the other end of the adapter cylinder 71. This arrangement improves the strength of the support for the drive shaft 4. The mixed aggregate falling into the feed pipe 7 will fall onto the conveying screw 5 and, after being conveyed by the conveying screw 5, will enter the rotating drum 3.

[0027] In this embodiment, a positioning shaft 83 located above the rotating drum 3 is fixedly connected to the top of the bracket 8. The positioning shaft 83 is fitted with a clearing roller 9 that is opposite to the fine screen material hole 31 and the coarse screen material hole 32 respectively. The function of the clearing roller 9 is to clear the blockage in the fine screen material hole 31 and the coarse screen material hole 32, so that the fine screen material hole 31 and the coarse screen material hole 32 can pass through and sort materials normally.

[0028] Specifically, the unblocking roller 9 includes a roller sleeve 91 rotatably connected to the positioning shaft 83 and a rubber sleeve 92 sleeved outside the roller sleeve 91. The bottom of the rubber sleeve 92 abuts against the rotating drum 3 and its outer peripheral wall is fixedly connected with evenly distributed protrusions 921. Thus, when the rotating drum 3 rotates, it will drive the unblocking roller 9 to rotate using friction. At this time, the protrusions 921 will be passively inserted into the fine screen material hole 31 and the coarse screen material hole 32, pushing the blockage in the fine screen material hole 31 and the coarse screen material hole 32 into the rotating drum 3, thereby realizing the unblocking function.

[0029] Working principle: The external conveyor belt transports the mixed recycled aggregate to the feed pipe 7. Then, the control motor 61 is started. When the drive gear 62 rotates, it will drive the driven gear ring 63 and the driven gear 64 to rotate in opposite directions. At this time, the drum 3 and the drive shaft 4 rotate in opposite directions. The conveying screw 5 will guide the mixed aggregate in the transfer drum 71 into the drum 3. The rotating drum 3 causes the aggregate inside to tumble. The conveying screw 5 transports the tumbling aggregate. The fine material in the mixed recycled aggregate will fall into the fine material bin 1 after passing through the fine screen hole 31, and the coarse material will fall into the coarse material bin 2 after passing through the coarse screen hole 32, thus realizing the function of feeding, sorting and conveying.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding mechanism for processing recycled aggregates from construction waste, comprising a fine material bin (1) and a coarse material bin (2), characterized in that, A rotating drum (3) is horizontally arranged above the fine material bin (1) and the coarse material bin (2). A drive shaft (4) is rotatably connected inside the rotating drum (3). A conveying screw (5) located outside the rotating drum (3) is fixedly connected to the outside of the drive shaft (4). A control assembly (6) for controlling the rotating drum (3) and the drive shaft (4) to rotate in opposite directions is provided at one end of the rotating drum (3). A feed pipe (7) is provided at the end of the rotating drum (3) near the fine material bin (1). Two sections of fine screening holes (31) and coarse screening holes (32) are opened on the outer peripheral wall of the rotating drum (3), which are respectively opposite to the fine material bin (1) and the coarse material bin (2).

2. The feeding mechanism for processing recycled aggregates from construction waste according to claim 1, characterized in that: The fine material bin (1) and the coarse material bin (2) are fixedly connected to a bracket (8) on their opposite sides. The top of the bracket (8) is fixedly connected to a positioning sleeve (81) that is sleeved on the outside of the rotating drum (3). The positioning sleeve (81) and the rotating drum (3) are rotatably connected.

3. The feeding mechanism for processing recycled aggregates from construction waste according to claim 2, characterized in that: The control assembly (6) includes a control motor (61), a drive gear (62), a driven gear ring (63), and a driven gear (64). A seat plate (82) is welded to one side of the bracket (8) via a support. The control motor (61) is fixedly mounted on the top of the seat plate (82), and its output shaft is fixedly connected to the drive gear (62). The driven gear ring (63) is fixedly sleeved on the outside of the rotating drum (3). One end of the transmission shaft (4) is fixedly connected to the driven gear (64) located outside the rotating drum (3). The driven gear (64) and the driven gear ring (63) mesh with the drive gear (62) simultaneously.

4. The feeding mechanism for processing recycled aggregates from construction waste according to claim 2, characterized in that: The other end of the rotating drum (3) is fitted with an adapter sleeve (33). The bottom of the feed pipe (7) is welded with an adapter cylinder (71) that is fitted inside the adapter sleeve (33). The adapter cylinder (71) and the adapter sleeve (33) are rotatably fitted together and fixedly connected to the bracket (8). One end of the conveying screw (5) extends into the adapter cylinder (71).

5. The feeding mechanism for processing recycled aggregates from construction waste according to claim 4, characterized in that: The other end of the drive shaft (4) is rotatably connected to the other end of the adapter cylinder (71).

6. The feeding mechanism for processing recycled aggregates from construction waste according to claim 2, characterized in that: The top of the bracket (8) is fixedly connected to a positioning shaft (83) located above the rotating drum (3), and a clearing roller (9) is sleeved on the positioning shaft (83) opposite to the fine screen hole (31) and the coarse screen hole (32) respectively.

7. The feeding mechanism for processing recycled aggregates from construction waste according to claim 6, characterized in that: The unblocking roller (9) includes a roller sleeve (91) rotatably connected to the positioning shaft (83) and a rubber sleeve (92) sleeved outside the roller sleeve (91). The bottom of the rubber sleeve (92) abuts against the rotating drum (3) and its outer peripheral wall is fixedly connected with evenly distributed protrusions (921).

Images