Efficient transfer line suitable for collecting used sand in multi-point sand shakeout area

Abstract

The utility model provides an efficient transfer line suitable for collecting used sand in a multi-point shakeout area, which comprises a main conveying line arranged in a shallow pit of a workshop and spanning at least two workshops along a first direction; the multiple shakeout working parts are distributed in at least two workshops and are in butt joint with the main conveying line; the sand regeneration working part is in butt joint with the main conveying line; wherein a main conveying trolley is movably arranged along the main conveying line, and the main conveying trolley can transfer a sand box in the sand shakeout working part to the sand regeneration working part; the shallow pit arrangement is adopted, used sand can be collected and conveyed to a used sand regeneration area through the transfer trolley, the workshop ground is not occupied, and the use amount of bucket lifting equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sand transfer technology, and in particular to a high-efficiency transfer line suitable for collecting old sand in multi-point sandfall areas. Background Technology

[0002] In the foundry production process, the collection and transfer of used sand is a crucial step. In the past, the multiple sand removal areas in the workshop were often operated independently by each workshop or sand removal point, lacking a unified and efficient collection and transfer system. For example, the sand removal departments in different workshops usually used independent conveyor lines and transfer equipment, which resulted in a large amount of ground sand removal space being occupied, a messy layout in the workshop, and seriously affected production efficiency and workshop cleanliness. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a high-efficiency transfer line suitable for collecting used sand in multi-point sand dumping areas. It employs a shallow pit layout, connecting multiple sand dumping areas in series. This allows for the collection of used sand and its transport to the used sand regeneration area via transfer vehicles, without occupying workshop floor space and reducing the amount of bucket elevator equipment required. The technical solution adopted by this utility model is as follows:

[0004] A high-efficiency transfer line suitable for collecting old sand in multi-point sandfall areas, characterized in that it comprises:

[0005] The main conveyor line is set in a shallow pit in the workshop and spans at least two workshops along the first direction;

[0006] Several sand removal stations are distributed in at least two workshops and are respectively connected to the main conveyor line;

[0007] The sand recycling section is connected to the main conveyor line.

[0008] A main conveyor trolley is installed along the main conveyor line, which can transfer sand boxes in the sand removal section to the sand recycling section.

[0009] Furthermore, the sand removal process includes:

[0010] The separate conveyor lines are set up in shallow pits in the workshop;

[0011] The sub-conveying trolley moves along the sub-conveying line;

[0012] The sand removal section includes a sand removal grid and at least two connected sand buffer hoppers. Sand falls through the sand removal grid into the at least two sand buffer hoppers for temporary storage. Each sand buffer hopper is equipped with a sand valve at its bottom.

[0013] The sand from the outlet of the buffer sand hopper falls into the sand box on the sub-conveying trolley, and the sub-conveying trolley transports the sand box along the sub-conveying line to the main conveying line.

[0014] Furthermore, a level gauge is installed inside the buffer sand hopper.

[0015] Furthermore, the sand recycling section includes:

[0016] Several sand storage facilities arranged in parallel;

[0017] A dust removal hood covers the entrances to the top of several of the sand storage silos. One side of the dust removal hood is equipped with a roller shutter door, and the other side is equipped with a dust suction port.

[0018] The sand box flipper picks up the sand boxes on the main conveyor trolley, transports them to the entrance of any sand silo that is not full, and flips the sand boxes to release the sand.

[0019] Furthermore, it also includes:

[0020] The scattered sand collection unit is connected to the main conveyor line;

[0021] The main conveyor trolley can transfer the sand boxes in the scattered sand collection section to the sand regeneration section.

[0022] Advantages of this utility model:

[0023] The sand removal sections in different workshops converge on a main conveyor line, and the main conveyor trolley on the main conveyor line transports the sand boxes to the sand recycling section for storage. This allows a main conveyor line to work with multiple sand removal areas in multiple span workshops and multiple sand removal points on a single conveyor line to achieve organized collection of old sand without occupying ground sand removal space and reducing the usage of bucket elevator equipment.

[0024] The entire sand removal scheme uses shallow pits, saving valuable workshop floor space;

[0025] One sand-falling grid corresponds to multiple sand-buffering hoppers, reducing the excavation depth of shallow pits;

[0026] The loose sand collection department realizes the function of collecting loose sand, and centrally collects and recycles loose sand on the workshop floor, making the workshop floor cleaner;

[0027] The same dust collection hood covers multiple sand bins, and with the opening and closing of the roller shutter door, the smoke and dust generated by multiple sand bins are captured and collected in a concentrated manner, which improves the dust removal effect of the sand regeneration plant. It is convenient for the smoke and dust to be collected uniformly from the dust suction port and then filtered by the bag filter to meet the emission standards. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structural composition of this utility model.

[0029] Figure 2 for Figure 1 Sectional view at point A in the middle.

[0030] Figure 3 for Figure 1 Sectional view at point B.

[0031] Figure 4 for Figure 1 Sectional view at point C.

[0032] In the diagram: 1-Main conveyor line, 101-Main conveyor trolley, 2-Sand grating, 3-Buffer sand hopper, 4-Sand valve, 5-Level gauge, 6-First sub-conveyor line, 601-First sub-conveyor trolley, 7-Second sub-conveyor line, 701-Second sub-conveyor trolley, 8-Third sub-conveyor line, 801-Third sub-conveyor trolley, 9-Fourth sub-conveyor line, 901-Fourth sub-conveyor trolley, 10-Fifth sub-conveyor line, 1001-Fifth sub-conveyor trolley, 1002-Sand box temporary storage station, 11-First motorized roller conveyor, 12-Sand silo, 13-Dust hood, 1301-Roller shutter door, 1302-Dust suction port, 14-Tilting machine, 15-Scattered sand collection station. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0034] Please see the appendix Figure 1 This application proposes an efficient transfer line for collecting old sand in multi-point sand dumping areas, comprising: a main conveyor line 1, set in a shallow pit in a workshop and spanning at least two workshops along a first direction; a plurality of sand dumping workshops, distributed in at least two workshops and respectively connected to the main conveyor line 1; and a sand recycling workshop, connected to the main conveyor line; wherein a main conveyor trolley 101 is movable along the main conveyor line 1, and the main conveyor trolley 101 is capable of transferring sand boxes in the sand dumping workshops to the sand recycling workshops.

[0035] The sand removal sections in different workshops converge on a main conveyor line, and the main conveyor trolley on the upper part of the main conveyor line transfers the sand boxes to the sand recycling section for storage. This allows a main conveyor line to work with multiple sand removal areas in multiple span workshops and multiple sand removal points on a single conveyor line to achieve organized collection of old sand without occupying ground sand removal space and reducing the usage of bucket elevator equipment.

[0036] In this application, the sand removal section includes: a sub-conveyor line set in a shallow pit in the workshop; a sub-conveyor trolley moving along the sub-conveyor line; and a sand removal section including a sand removal grid 2 and at least two connected buffer sand hoppers 3. Sand falls through the sand removal grid 2 into at least two of the buffer sand hoppers 3 for temporary storage. Each of the buffer sand hoppers 3 is equipped with a sand valve 4 at its bottom and a material level gauge 5 inside each of the buffer sand hoppers. The sand from the outlet of the buffer sand hopper 3 falls into a sand box on the sub-conveyor trolley, and the sub-conveyor trolley transports the sand box along the sub-conveyor line to the main conveyor line 1. By using a sand-falling grid 2, at least two buffer sand hoppers 3, and a separate conveyor trolley, the sand from one sand-falling cycle is distributed in different buffer sand hoppers 3. By alternating discharge from different buffer sand hoppers 3 and multiple transports by the separate conveyor trolley, the amount of sand in the sand box is ensured not to be too full, avoiding sand overflow and reducing the risk of iron bars on the conveyor line getting stuck or jammed. The arrangement of at least two buffer sand hoppers 4 replaces the original single buffer sand hopper, which can effectively reduce the height required for the buffer sand hoppers 4, thereby reducing the excavation depth of the shallow pit. The sand valve 4 enables individual discharge between different buffer sand hoppers.

[0037] This application monitors the remaining sand in each buffer sand hopper using a level gauge 5. When the level gauge 5 detects that the amount of sand in the buffer sand hopper 3 has reached a certain level and sand needs to be discharged, the conveying trolley moves to the bottom of the sand discharge section to receive the sand, and the control system controls the sand valve 4 to open, thus completing the sand discharge operation.

[0038] In one embodiment, the sand-falling grid 2 is erected at the edge of the shallow pit and is level with the workshop floor; the buffer sand hopper 3 is hidden inside the shallow pit and is completely covered by the sand-falling grid 2.

[0039] This is the first embodiment of the sand removal process, applicable to sand transfer within a single conveyor line and multiple sand removal sections. (See attached...) Figure 1 and attached Figure 2 As shown, the sub-conveyor line includes a first sub-conveyor line 6 and a first sub-conveyor trolley 601 that moves along the first sub-conveyor line 6. The first sub-conveyor line 6 extends in a second direction, and several sand-dropping sections are arranged at intervals along the first sub-conveyor line 6. When the first sub-conveyor trolley 601 moves along the first sub-conveyor line 6, the sand valve 4 in any sand-dropping section opens, and sand falls into the sand box of the first sub-conveyor trolley 601. The first sub-conveyor trolley 601 then transfers the sand box to the main conveyor line 1 and hands it over to the main conveyor trolley 101, completing the transfer of the sand box.

[0040] As a second embodiment of the sand removal process, it is suitable for sand transfer in a single conveyor line with multiple sand removal sections, and has the function of alternating transfer of empty and full containers. (See attached...) Figure 1As shown, based on the first embodiment, a second sub-conveying line 7 and two second sub-conveying trolleys 701 are added on the second sub-conveying line 7. The second sub-conveying line 7 extends along the first direction and is located between the first sub-conveying line 6 and the main conveying line 1. The two second sub-conveying trolleys 701 are respectively connected to the first sub-conveying trolley 601 and the main conveying trolley 101, so that the two second sub-conveying trolleys 701 form a double-unit vehicle, realizing the alternation between empty and full sand boxes and improving the transfer efficiency.

[0041] This is the third embodiment of the sand removal process, suitable for sand transfer across multiple conveyor lines and multiple sand removal sections. (See attached...) Figure 1 As shown, there are at least two first sub-conveyor lines 6 arranged side by side, with the addition of a third sub-conveyor line 8 and a fourth sub-conveyor line 9. The third sub-conveyor line 8 connects to at least two first sub-conveyor lines 6 and extends along a first direction. The fourth sub-conveyor line 9 is located between the third sub-conveyor line 8 and the main conveyor line 1 and extends along a second direction. A third sub-conveyor trolley 801 is slidably mounted on the third sub-conveyor line 8, and a fourth sub-conveyor trolley 901 is slidably mounted on the fourth sub-conveyor line 9. The first sub-conveyor trolley 601 on each first sub-conveyor line 6 can transfer the sand box on that sub-conveyor line to the third sub-conveyor line 8 and then to the third sub-conveyor trolley 801. The third sub-conveyor trolley 801 then moves to the fourth sub-conveyor line 9 and transfers the sand box to the fourth sub-conveyor trolley 901. Finally, the fourth sub-conveyor trolley 901 moves to the main conveyor line 1 and transfers the sand box to the main conveyor trolley 101.

[0042] As the fourth embodiment of the sand removal process, it is suitable for sand transfer in multiple conveyor lines and multiple sand removal sections, and has the function of alternating transfer of empty and full containers. (See attached...) Figure 1 As shown, based on the third embodiment, a fifth sub-conveyor line 10 is added. The third sub-conveyor line 8 is simultaneously connected to at least two first sub-conveyor lines 6, and the fourth sub-conveyor line 9 is connected to the third sub-conveyor line 8. The fifth sub-conveyor line 10 is located between the fourth sub-conveyor line 9 and the main conveyor line 1. A fifth sub-conveyor trolley 1001 is slidably arranged on the fifth sub-conveyor line 10, and two sand box temporary storage stations 1002 are arranged on the side of the fifth sub-conveyor line 10 closest to the main conveyor line 1. The first sub-conveyor trolley 601 on each first sub-conveyor line 6 can transfer the sand box on the sub-conveyor line to the third sub-conveyor line 8 and transfer it to the third sub-conveyor trolley 801. Then, the third sub-conveyor trolley 801 moves to the fourth sub-conveyor line 9 and transfers it to the fourth sub-conveyor trolley 901. Then, the fourth sub-conveyor trolley 901 moves to the fifth sub-conveyor line 10 and transfers it to the fifth sub-conveyor trolley 1001. Finally, the empty sand box on the sand box temporary storage station 1002 is replaced to prepare for the full box to be transferred to the main conveyor line.

[0043] In the above embodiments, the first direction and the second direction intersect, preferably perpendicularly, so that the sand box can be transferred in different directions according to the workshop layout; each conveyor line is a steel rail, and each conveyor trolley is a motorized transfer vehicle.

[0044] Understandably, the full-box temporary storage method of the second sub-conveyor line 7 with two second sub-conveyor trolleys achieves the same technical effect as the full-box temporary storage method of the fifth sub-conveyor line 10 with one fifth sub-conveyor trolley 1001 and two sand box temporary storage stations 1002. Therefore, the second sub-conveyor line 7 and the fifth sub-conveyor line 10 can be used interchangeably, both having the transportation effect of double-carts and reducing the waiting time between empty and full boxes.

[0045] In addition, as attached Figure 3 As shown, the main conveyor line 1 can also be used directly with a sand removal machine. The sand removal machine is located directly on the workshop floor. A first motorized roller conveyor 11 is laid in a shallow pit. The sand removed by the sand removal machine enters the buffer sand hopper 3 for temporary storage. By opening the sand valve 4, the sand falls into the sand box on the first motorized roller conveyor 11 and is finally transferred to the main conveyor trolley 101 to complete the transfer. Note that the first motorized roller conveyor 11 allows the sand box to move directly on it, omitting the arrangement of the conveyor trolley.

[0046] Please refer to the appendix in this application. Figure 1 and attached Figure 4 The sand recycling unit includes: several sand silos 12 arranged side by side; a dust hood 13 covering the entrances of the top of the sand silos 12, with a roller shutter door 1301 on one side and a dust suction port 1302 on the other side; and a sand box flipper 14 that picks up sand boxes from the main conveyor trolley 101, transports them to the entrance of any sand silo 12 that is not full, and flips the sand box to release sand. The amount of sand in the sand silo 12 is monitored by a level gauge inside the sand silo. When the amount of sand in the sand silo reaches the level gauge height, the level gauge sends a full sand signal to the controller, and the sand box flipper 14 stops feeding sand into the full sand silo.

[0047] Specifically, the dust hood 13 is mounted on the frame outside the box-turning machine 14 and shares a frame support with the box-turning machine 14. Under normal conditions, the roller shutter door 1301 is closed. When storing sand, the claws of the box-turning machine 14 first grab the sand box on the main conveying trolley 101 and lift it up. Then the roller shutter door 1301 opens, and the claws of the box-turning machine 14 enter the dust hood 13 along the traveling trolley on the box-turning machine 14. The roller shutter door 1301 closes, providing a relatively enclosed space for the sand to fall. Then the claws of the box-turning machine 14 tilt the sand box to the side, so that the sand is poured into the corresponding sand silo 12. The dust generated by the falling sand is extracted from the dust suction port 1302, thereby preventing the dust from overflowing. After the sand removal is completed, the roller shutter door 1301 reopens, and the claws of the box-turning machine 14 exit the dust collector 13 along the traveling trolley on the box-turning machine 14. The roller shutter door 1301 closes again, and the sand storage action is repeated. The structure and principle of the box-turning machine 14 have been disclosed in the prior art and will not be described in detail here.

[0048] Using the same dust collection hood 13 to cover multiple sand silos 12, and cooperating with the opening and closing of the roller shutter door 1301, the smoke and dust generated by multiple sand silos 12 are captured and collected in a concentrated manner, which improves the dust removal effect of the sand regeneration plant, and makes it convenient for the smoke and dust to be collected uniformly from the dust collection port 1302 and then filtered by the bag filter to meet the emission standards.

[0049] This application also includes a loose sand collection unit 15 connected to the main conveyor line 1; the loose sand collection unit 15 in this application is a sunken collection pit. By adding the loose sand collection unit 15, the loose sand collection function is realized, and the loose sand on the workshop floor is collected and recycled in a centralized manner, making the workshop floor cleaner.

[0050] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high efficiency transfer line suitable for use in multi-point shakeout area used sand collection, characterized in that, The application relates to a sand collecting and transferring system for a multi-point sand dropping area. The system comprises: a main conveying line arranged in a shallow pit of a workshop and crossing at least two workshops in a first direction; a plurality of sand dropping workstations distributed in the at least two workshops and respectively connected with the main conveying line; a sand regenerating work station connected with the main conveying line; 2. The high efficiency transfer line suitable for multi-drop shakeout area spent sand collection of claim 1, wherein, wherein a main conveying trolley is arranged to move along the main conveying line, and the main conveying trolley is capable of transferring a sand box in the sand dropping workstation to the sand regenerating work station. The sand dropping workstation comprises: a sub-conveying line arranged in a shallow pit of a workshop; a sub-conveying trolley moving along the sub-conveying line; a sand dropping part comprising a sand dropping grid and at least two connected buffer sand pots, sand falling through the sand dropping grid is temporarily stored in the at least two buffer sand pots, and a sand valve is arranged at the bottom of any buffer sand pot; sand at the outlet of the buffer sand pot falls into a sand box on the sub-conveying trolley, and the sub-conveying trolley transfers the sand box along the sub-conveying line to the main conveying line.

3. The efficient transferring line suitable for old sand collection of a multi-point sand dropping area according to claim 2, wherein:

4. The high efficiency transfer line suitable for multi-drop shakeout area spent sand collection of claim 2, wherein, an internal material level meter is arranged in the buffer sand pot. The sand regenerating work station comprises: a plurality of sand warehouses arranged side by side; a dust removal cover covering the top entrance of the plurality of sand warehouses, one side of the dust removal cover is provided with a roller shutter door, and the other side is provided with a dust suction port; 5. The high efficiency transfer line suitable for multi-drop shakeout area spent sand collection of claim 2, wherein, a sand box grabbing and transferring machine grabs a sand box on the main conveying trolley, transfers the sand box to the entrance of any sand warehouse not full of sand, and flips the sand box to drop sand. The system further comprises: a scattered sand collecting workstation connected with the main conveying line; the main conveying trolley is capable of transferring a sand box in the scattered sand collecting workstation to the sand regenerating work station.

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