Concrete waste screening device

Abstract

The utility model relates to the technical field of concrete recycling, in particular to a concrete waste screening device which comprises a screening bin, supporting legs are fixedly installed on the lower surface of the screening bin, a picking assembly is fixedly installed in the screening bin, and the picking assembly comprises a conical cover and a first spiral blade. And a second spiral blade is fixedly mounted at the upper end of the first spiral blade. According to the device, metal powder is firstly separated from concrete through the selecting assembly, then concrete particles which are not thoroughly smashed are smashed through the grinding assembly, metal particles wrapped in the concrete particles are exposed, and the concrete particles are moved into the selecting assembly again through the feeding assembly to be screened again; and metal particles wrapped in the concrete are prevented from weakening the suction force of the electromagnet to the concrete, the screening effect is improved, and the concrete flying during screening is collected in a unified mode through the dust removal assembly, so that the concrete is prevented from flying into air to cause dust pollution.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete recycling, in particular to a concrete waste screening device. Background Art

[0002] Waste concrete refers to discarded concrete blocks, such as concrete blocks after the disintegration of buildings. High-quality crushed and screened concrete blocks and silt can be used as recycled concrete. There will be certain defective concrete poles during production, which need to be crushed and recycled. When recycling, the concrete poles are first crushed as a whole, and then the internal steel bars are separated from the concrete.

[0003] When existing concrete poles are crushed, some steel bars will be crushed synchronously with the concrete by the crushing device. If these metal particles are wrapped in the concrete particles that have not been completely crushed, the suction of the electromagnet will be weakened, making it inconvenient to separate these metal particles from the concrete during screening. The screening effect is poor, and the concrete will float into the air during screening, causing dust pollution. Utility Model Content

[0004] The purpose of the utility model is to provide a concrete waste screening device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A concrete waste screening device comprises a screening bin, a lower surface of which is fixedly provided with a support foot, a selection assembly is fixedly provided inside the screening bin, the selection assembly comprises a conical cover and a No. 1 spiral blade, a No. 2 spiral blade is fixedly provided on the upper end of the No. 1 spiral blade, partitions are fixedly provided on the inner surface of the screening bin on both the upper and lower sides of the No. 2 spiral blade, a dust removal assembly is fixedly provided on the outer side of the screening bin, a feeding assembly is fixedly provided inside the screening bin, the feeding assembly comprises a lower grinding block, an upper grinding block and a spiral feeding mechanism, the lower grinding block is fixedly provided on the inner surface of the screening bin, the upper grinding block is rotatably connected to the inner side of the lower grinding block, and the spiral feeding mechanism is fixedly provided on the outer surface of the screening bin.

[0007] Furthermore, the dust removal assembly includes a dust collecting pipe and a dust removal fan, the dust collecting pipe is fixedly installed on the inner surface of the screening bin, the outer surface of the dust collecting pipe is fixedly connected with a connecting pipe, one end of the connecting pipe passes through the screening bin and is connected to the air inlet of the dust removal fan, and the air outlet of the dust removal fan is fixedly sleeved with a filter bag.

[0008] Furthermore, a No. 2 electromagnet is fixedly embedded in the upper surface of the partition, a No. 1 motor is fixedly installed on the upper surface of the partition, and an output end of the No. 1 motor passes through the No. 2 electromagnet and is fixedly connected to the No. 2 spiral blade.

[0009] Furthermore, a metal filter is fixedly installed on the inner surface of the screening bin, a feed bin is fixedly embedded and installed on the outer surface of the screening bin, a discharge port is fixedly installed at the upper end of the outer surface of the screening bin, and a plurality of discharge troughs are opened on the outer surface of the metal filter.

[0010] Preferably, the conical cover is fixedly mounted on the upper surface of the metal filter, a plurality of No. 1 electromagnets are fixedly mounted at equal intervals on the outer surface of the conical cover, and the No. 1 spiral blade is rotatably connected to the outer surface of the conical cover.

[0011] Furthermore, a bracket is fixedly installed on the inner surface of the support leg, a No. 2 motor is fixedly installed on the inner surface of the bracket, an output end of the No. 2 motor is fixedly connected to the upper grinding block, and a material guide bin is fixedly installed on the outer surface of the bracket outside the No. 2 motor.

[0012] Preferably: a three-way pipe is fixedly embedded in the outer surface of the material guide bin, one end of the three-way pipe is fixedly connected to the spiral feeding mechanism, the upper end of the spiral feeding mechanism is fixedly connected to the screening bin, and the other end of the three-way pipe is movably sleeved with a blocking cover.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the operation of electromagnet No. 1 and electromagnet No. 2, the metal particles are first adsorbed on electromagnet No. 1, and motor No. 1 runs to drive spiral blade No. 2 and spiral blade No. 1 to rotate. Spiral blade No. 1 moves the metal particles upward along the conical cover, so that electromagnet No. 2 adsorbs the upward metal particles, and then spiral blade No. 2 rotates to discharge the metal particles from the discharge port, and the remaining concrete passes through the metal filter and falls between the lower grinding block and the upper grinding block for secondary crushing.

[0015] 2. The No. 2 motor runs to crush the concrete blocks. The crushed concrete and metal particles fall into the guide bin, and then re-enter the screening bin through the spiral feeding mechanism for secondary screening. The metal powder is first separated from the concrete by the selection component, and then the concrete particles that are not completely crushed are crushed by grinding to expose the metal particles wrapped in them. They are moved back to the selection component through the feeding component for screening again to avoid the metal particles wrapped in the concrete weakening the suction of the electromagnet to it, thereby increasing the screening effect.

[0016] 3. The dust removal fan runs, generating suction from the dust collecting pipe, sucking the floating concrete into the filter bag, so that the floating concrete during screening is collected uniformly through the dust removal component to prevent it from floating into the air and causing dust pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the screening bin in the utility model;

[0019] Figure 3 It is a schematic diagram of the vertical section structure of the screening bin and the selection component part in the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembly structure of the selected components in the utility model;

[0021] Figure 5 It is a schematic diagram of the vertical section structure of the screening bin and the feeding assembly part in the utility model.

[0022] In the figure: 1. Screening bin; 101. Metal filter; 102. Feed chute; 103. Support leg; 104. Feed bin; 105. Discharge port; 2. Selection assembly; 201. Conical cover; 202. Electromagnet No. 1; 203. Spiral blade No. 1; 204. Partition; 205. Electromagnet No. 2; 206. Spiral blade No. 2; 207. Motor No. 1; 3. Dust removal assembly; 301. Dust collecting pipe; 302. Connecting pipe; 303. Dust removal fan; 304. Filter bag; 4. Feeding assembly; 401. Lower grinding block; 402. Upper grinding block; 403. Motor No. 2; 404. Bracket; 405. Feeding bin; 406. Three-way pipe; 407. Spiral feeding mechanism. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 5In an embodiment of the utility model, a concrete waste screening device includes a screening bin 1, a support leg 103 is fixedly installed on the lower surface of the screening bin 1, a picking component 2 is fixedly installed inside the screening bin 1, the picking component 2 includes a conical cover 201 and a first spiral blade 203, a second spiral blade 206 is fixedly installed on the upper end of the first spiral blade 203, and a partition 204 is fixedly installed on the upper and lower sides of the second spiral blade 206 on the inner surface of the screening bin 1, a dust removal component 3 is fixedly provided on the outer side of the screening bin 1, and a feeding component 4 is fixedly provided inside the screening bin 1, and the feeding component 4 includes a lower grinding block 401, an upper grinding block 402 and a spiral feeding mechanism 407, the lower grinding block 401 is fixedly installed on the inner surface of the screening bin 1, the upper grinding block 402 is rotatably connected to the inner side of the lower grinding block 401, and the spiral feeding mechanism 407 is fixedly installed on the outer surface of the screening bin 1.

[0025] Specifically, part of the metal is first screened out through the selection component 2, and then the large-particle concrete blocks are crushed again through the feeding component 4, and finally the crushed concrete blocks are sent to the selection component 2 again for screening to improve the screening effect, and the dust pollution in the screening process is reduced through the dust removal component 3.

[0026] Embodiment 1

[0027] like Figure 3-4 As shown, in the present embodiment, a No. 2 electromagnet 205 is fixedly embedded and installed on the upper surface of the partition 204 located above, and a No. 1 motor 207 is fixedly installed on the upper surface of the partition 204, and the output end of the No. 1 motor 207 passes through the No. 2 electromagnet 205 and is fixedly connected to the No. 2 spiral blade 206; a metal filter 101 is fixedly installed on the inner surface of the screening bin 1, and a feed bin 104 is fixedly embedded and installed on the outer surface of the screening bin 1, and a discharge port 105 is fixedly installed at the upper end of the outer surface of the screening bin 1, and a plurality of feed chutes 102 are provided on the outer surface of the metal filter 101; a conical cover 201 is fixedly installed on the upper surface of the metal filter 101, and a plurality of No. 1 electromagnets 202 are fixedly installed equidistantly on the outer surface of the conical cover 201, and a No. 1 spiral blade 203 is rotatably connected to the outer surface of the conical cover 201.

[0028] In this embodiment, for the sake of clarity of description, the output end of the No. 1 motor 207 is taken as an example, which passes through the No. 2 electromagnet 205 and is fixedly connected to the No. 2 spiral blade 206. The crushed concrete enters the screening bin 1 through the feed bin 104, and the No. 1 electromagnet 202 and the No. 2 electromagnet 205 work to first adsorb the metal particles at the No. 1 electromagnet 202. The No. 1 motor 207 runs, driving the No. 2 spiral blade 206 and the No. 1 spiral blade 203 to rotate. The No. 1 spiral blade 203 moves the metal particles upward along the conical cover 201, so that the No. 2 electromagnet 205 adsorbs the upwardly moved metal particles, and then under the rotation of the No. 2 spiral blade 206, the metal particles are discharged from the discharge port 105, and the remaining concrete passes through the metal filter 101 and falls between the lower grinding block 401 and the upper grinding block 402 for secondary crushing.

[0029] like Figure 2 and 5 As shown, in this embodiment, a bracket 404 is fixedly installed on the inner surface of the support leg 103, a No. 2 motor 403 is fixedly installed on the inner surface of the bracket 404, the output end of the No. 2 motor 403 is fixedly connected to the upper grinding block 402, and a material guide bin 405 is fixedly installed on the outer surface of the bracket 404 located outside the No. 2 motor 403; a three-way pipe 406 is fixedly embedded and installed on the outer surface of the material guide bin 405, one end of the three-way pipe 406 is fixedly connected to a spiral feeding mechanism 407, the upper end of the spiral feeding mechanism 407 is fixedly connected to the screening bin 1, and the other end of the three-way pipe 406 is movably sleeved with a blocking cover.

[0030] During specific implementation, the No. 2 motor 403 runs, driving the upper grinding block 402 to rotate, crushing the concrete block, and the crushed concrete and metal particles fall into the guide bin 405, and then re-enter the screening bin 1 through the spiral feeding mechanism 407 for secondary screening, so that the metal powder is first separated from the concrete through the selection component 2, and then the concrete particles that are not completely crushed are crushed by grinding to expose the metal particles wrapped in them, and then they are moved back to the selection component 2 through the feeding component 4 for screening again, so as to avoid the metal particles wrapped in the concrete weakening the suction of the electromagnet to it, thereby increasing the screening effect.

[0031] Embodiment 2

[0032] On the basis of the first embodiment, in order to solve the problem of dust flying when concrete is screened in the first embodiment.

[0033] like Figure 1-2As shown, in this embodiment, the dust removal component 3 includes a dust collecting pipe 301 and a dust removal fan 303. The dust collecting pipe 301 is fixedly installed on the inner surface of the screening bin 1, and the outer surface of the dust collecting pipe 301 is fixedly connected with a connecting pipe 302. One end of the connecting pipe 302 passes through the screening bin 1 and is connected to the air inlet of the dust removal fan 303. The air outlet of the dust removal fan 303 is fixedly sleeved with a filter bag 304.

[0034] During specific implementation, the dust removal fan 303 is running, generating suction from the dust collecting pipe 301, sucking the floating concrete into the filter bag 304, so that the floating concrete during screening is collected uniformly through the dust removal component 3 to prevent it from floating into the air and causing dust pollution.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A concrete waste screening device, comprising a screening bin, wherein a support foot is fixedly mounted on the lower surface of the screening bin, characterized in that: A picking component is fixedly installed inside the screening bin, and the picking component includes a conical cover and a No. 1 spiral blade, a No. 2 spiral blade is fixedly installed on the upper end of the No. 1 spiral blade, and partitions are fixedly installed on the inner surface of the screening bin on both sides of the No. 2 spiral blade, a dust removal component is fixedly installed on the outer side of the screening bin, and a feeding component is fixedly installed inside the screening bin, the feeding component includes a lower grinding block, an upper grinding block and a spiral feeding mechanism, the lower grinding block is fixedly installed on the inner surface of the screening bin, the upper grinding block is rotatably connected to the inner side of the lower grinding block, and the spiral feeding mechanism is fixedly installed on the outer surface of the screening bin.

2. A concrete waste screening device according to claim 1, characterized in that: The dust removal assembly includes a dust collecting pipe and a dust removal fan. The dust collecting pipe is fixedly installed on the inner surface of the screening bin. The outer surface of the dust collecting pipe is fixedly connected with a connecting pipe. One end of the connecting pipe passes through the screening bin and is connected to the air inlet of the dust removal fan. The air outlet of the dust removal fan is fixedly sleeved with a filter bag.

3. A concrete waste screening device according to claim 1, characterized in that: A No. 2 electromagnet is fixedly embedded on the upper surface of the partition plate, and a No. 1 motor is fixedly installed on the upper surface of the partition plate. The output end of the No. 1 motor passes through the No. 2 electromagnet and is fixedly connected to the No. 2 spiral blade.

4. A concrete waste screening device according to claim 1, characterized in that: A metal filter is fixedly installed on the inner surface of the screening bin, a feed bin is fixedly embedded and installed on the outer surface of the screening bin, a discharge port is fixedly installed at the upper end of the outer surface of the screening bin, and a plurality of discharge troughs are opened on the outer surface of the metal filter.

5. A concrete waste screening device according to claim 4, characterized in that: The conical cover is fixedly mounted on the upper surface of the metal filter screen, a plurality of No. 1 electromagnets are fixedly mounted at equal intervals on the outer surface of the conical cover, and the No. 1 spiral blade is rotatably connected to the outer surface of the conical cover.

6. The concrete waste screening device according to claim 1, characterized in that: A bracket is fixedly installed on the inner surface of the support leg, a No. 2 motor is fixedly installed on the inner surface of the bracket, an output end of the No. 2 motor is fixedly connected to the upper grinding block, and a material guide bin is fixedly installed on the outer surface of the bracket outside the No. 2 motor.

7. A concrete waste screening device according to claim 6, characterized in that: A three-way pipe is fixedly embedded on the outer surface of the material guide bin, one end of the three-way pipe is fixedly connected to the spiral feeding mechanism, the upper end of the spiral feeding mechanism is fixedly connected to the screening bin, and the other end of the three-way pipe is movably sleeved with a blocking cover.

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