Screening equipment for concrete production

Abstract

The utility model discloses a screening device for concrete production, which comprises a sand-stone separator, a sand-stone separator, a sand-stone separator, a sand-stone separator, a sand-stone separator, a sand-stone separator, a sand-stone separator, a sand-stone separator, a sand-stone separator and a sand-stone separator, the supporting frame is arranged on the ground and located below the gravel discharging opening; the cleaning box is arranged on the supporting frame, the upper end of the cleaning box is provided with a feeding hopper communicated with the gravel discharging port, the side wall of the lower end of the cleaning box is provided with a discharging hopper, and the lower end face of the cleaning box is provided with multiple rows of water outlets; the stirring paddle is vertically and rotatably connected into the cleaning box; the switching mechanism is arranged at the lower end of the cleaning box and used for controlling opening and closing of the water outlet; and the spraying mechanism is arranged at the upper end in the cleaning box. By arranging the screening equipment integrating screening and cleaning, after gravel is discharged, floating ash on the surface of the gravel can be cleaned, the cleanliness of the gravel is guaranteed, meanwhile, clean storage of the gravel is achieved, feeding and cleaning do not need to be conducted in the later period, the production steps are simplified, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete production, and in particular to a screening device for concrete production. Background Technology

[0002] Sand and gravel screening is a crucial step in the production of building materials, primarily used to classify collected natural sand and gravel, or crushed aggregates, according to different particle sizes. The screening process is essential for ensuring the quality of building materials such as concrete and asphalt mixtures.

[0003] Traditional screening equipment can only perform preliminary screening of fine sand and aggregates. After screening, the aggregates need to be washed to remove surface dust. However, the traditional production process is discontinuous, which affects production efficiency and needs to be improved. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a screening equipment for concrete production, which has the effect of improving production efficiency.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a screening device for concrete production, comprising:

[0006] The sand and gravel separator is set horizontally on the ground, with a sand discharge port and a gravel discharge port at the bottom.

[0007] A support frame is installed on the ground and located below the sand and gravel outlet;

[0008] A cleaning box is mounted on the support frame. The upper end of the cleaning box is provided with a feed hopper that connects to the crushed stone discharge port, and the lower side wall is provided with a discharge hopper. The lower end face of the cleaning box is provided with multiple drainage outlets.

[0009] The stirring paddle is vertically rotatable and connected inside the cleaning tank;

[0010] A switching mechanism is located at the lower end of the cleaning tank and is used to control the opening and closing of the water outlet;

[0011] The spraying mechanism is located at the upper part of the inside of the cleaning tank.

[0012] In a preferred embodiment, the present invention can be further configured as follows: the switching mechanism includes a switch frame, a switch plate, and a screw; the switch frame is horizontally slidably connected to the lower end face of the cleaning tank; the switch plate is horizontally disposed on the switch frame and is used to cover the water outlet; the screw is horizontally threadedly connected to the cleaning tank and rotatably connected to the switch frame.

[0013] In a preferred embodiment, the present invention can be further configured such that: the spraying mechanism includes a water distribution pipe, a nozzle, and a water injection pipe; the water distribution pipe is arranged in a circular shape inside the upper end of the cleaning tank; the nozzle is disposed on the water distribution pipe; and the water injection pipe is connected to the water distribution pipe.

[0014] In a preferred embodiment, the present invention can be further configured such that: a separation box is provided at the lower end of the cleaning box, the lower end of the separation box is open, a filter conveyor belt is horizontally rotatably connected inside the separation box, and the filter conveyor belt passes through one side of the separation box.

[0015] In a preferred embodiment, the present invention can be further configured such that a scraper is provided at the end of the filter conveyor belt.

[0016] In a preferred embodiment, the present invention can be further configured such that: an isolation frame is inclinedly arranged on the feed hopper, and a plurality of isolation rods are spaced apart on the isolation frame.

[0017] In a preferred embodiment, the present invention can be further configured such that: the lower end of the isolation frame is rotatably connected to the feed hopper, the feed hopper is provided with a hook, and the isolation frame is provided with a retaining ring for the hook to engage.

[0018] In summary, this utility model has the following beneficial effects:

[0019] 1. By setting up a screening equipment that integrates screening and washing, the surface dust of the crushed stone can be cleaned after the crushed stone is discharged, ensuring the cleanliness of the crushed stone. At the same time, the crushed stone can be stored cleanly without the need for subsequent feeding and washing, simplifying the production steps and improving production efficiency.

[0020] 2. By setting up a separation box below the washing tank and using a filter conveyor belt, the fine sand after washing can be separated and collected, reducing resource waste;

[0021] 3. By setting a partition bar on the feed hopper, large aggregates can be automatically screened at the initial position of the washing box, ensuring stable operation of the washing box. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an embodiment;

[0023] Figure 2 This is a schematic diagram of the internal structure of an embodiment.

[0024] Reference numerals in the attached diagram: 1. Sand and gravel separator; 11. Sand outlet; 12. Crushed stone outlet; 2. Support frame; 3. Washing tank; 31. Feed hopper; 32. Discharge hopper; 33. Water outlet; 4. Agitator; 5. Switching mechanism; 51. Switch frame; 52. Switch plate; 53. Screw; 6. Spraying mechanism; 61. Water distribution pipe; 62. Spray nozzle; 63. Water injection pipe; 7. Separation tank; 71. Filter conveyor belt; 72. Scraper; 8. Isolation frame; 81. Isolation rod; 82. Hook; 83. Ring. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 , Figure 2 As shown, a screening device for concrete production includes a sand and gravel separator 1, a support frame 2, a washing tank 3, a mixing paddle 4, a switching mechanism 5, and a spraying mechanism 6.

[0027] like Figure 1 , Figure 2 As shown, the sand and gravel separator 1 is horizontally set on the ground, and its lower end is respectively provided with a sand discharge port 11 and a gravel discharge port 12. The support frame 2 is set on the ground and located below the sand and gravel discharge ports.

[0028] like Figure 1 , Figure 2 As shown, the washing box 3 is mounted on the support frame 2. The upper end of the washing box 3 is provided with a feed hopper 31 that connects to the crushed stone discharge port 12, and the lower side wall is provided with a discharge hopper 32. The lower end face of the washing box 3 is provided with multiple drainage outlets 33.

[0029] like Figure 1 , Figure 2 As shown, the stirring paddle 4 is vertically rotatably connected to the cleaning tank 3, and the switch mechanism 5 is located at the lower end of the cleaning tank 3 and is used to control the opening and closing of the water outlet 33.

[0030] like Figure 1 , Figure 2 As shown, the switching mechanism 5 includes a switch frame 51, a switch plate 52, and a screw 53. The switch frame 51 is horizontally slidably connected to the lower end face of the cleaning tank 3, and the switch plate 52 is horizontally disposed on the switch frame 51 and is used to cover the water outlet 33. The screw 53 is horizontally threadedly connected to the cleaning tank 3 and rotatably connected to the switch frame 51.

[0031] like Figure 1 , Figure 2 As shown, the spraying mechanism 6 is located at the upper end of the cleaning tank 3. The spraying mechanism 6 includes a water distribution pipe 61, a nozzle 62, and a water injection pipe 63. The water distribution pipe 61 is arranged in a ring shape inside the upper end of the cleaning tank 3. The nozzle 62 is arranged on the water distribution pipe 61, and the water injection pipe 63 is connected to the water distribution pipe 61.

[0032] When screening sand and gravel, the sand and gravel separator 1 is used to operate, so that fine sand is discharged along the sand outlet 11 and crushed stone is discharged along the crushed stone outlet 12. Then the crushed stone automatically enters the washing tank 3 along the feed hopper 31, and at the same time, clean water is injected into the water distribution pipe 61 through the water injection pipe 63 and then sprayed out along the nozzle 62 to realize the automatic cleaning of the crushed stone.

[0033] Furthermore, during the washing process of the crushed stone, the rotation of the stirring paddle 4 is controlled to agitate the crushed stone and improve the washing effect. Simultaneously, the screw 53 can be controlled to drive the switch frame 51 and switch plate 52 to rotate, sealing the outlet 33 and allowing the crushed stone to be continuously washed within the washing tank 3. Alternatively, the switch plate 52 can be controlled to detach from the outlet 33, allowing wastewater to be discharged while washing, achieving continuous rinsing. Finally, the discharge hopper 32 is controlled to open, discharging the cleaned crushed stone, completing the automatic washing of the crushed stone after screening.

[0034] Therefore, by setting up screening equipment that integrates screening and washing, the surface dust of the crushed stone can be cleaned after the crushed stone is discharged, ensuring the cleanliness of the crushed stone. At the same time, the crushed stone can be stored cleanly without the need for subsequent feeding and washing, simplifying the production steps and improving production efficiency.

[0035] like Figure 1 , Figure 2 As shown, a separation box 7 is provided at the lower end of the cleaning box 3. The lower end of the separation box 7 is open. A filter conveyor belt 71 is horizontally rotatably connected inside the separation box 7. The filter conveyor belt 71 passes through one side of the separation box 7. A scraper 72 is provided at the end of the filter conveyor belt 71.

[0036] After the gravel is washed, the mud is discharged from the outlet 33 into the separation tank 7. The mud is then automatically filtered by the filter conveyor belt 71, and the wastewater is discharged. The fine sand is transported to the outside of the separation tank 7 by the filter conveyor belt 71, and the fine sand is separated and collected, reducing the waste of resources.

[0037] like Figure 1 , Figure 2 As shown, an isolation frame 8 is inclinedly arranged on the feed hopper 31, and multiple isolation rods 81 are spaced apart on the isolation frame 8. The lower end of the isolation frame 8 is rotatably connected to the feed hopper 31, and a hook 82 is provided on the feed hopper 31. A retaining ring 83 is provided on the isolation frame 8 for the hook 82 to be hooked.

[0038] When it is necessary to remove large aggregate pieces at the feed hopper 31 position, the control of the isolation frame 8 is to flip it above the feed hopper 31 and make the hook 82 hook the retaining ring 83 to fix the isolation frame 8, so that the large aggregate pieces can be automatically screened at the initial position.

[0039] When it is not necessary to remove large aggregates at the feed hopper 31 position, the control hook 82 disengages from the retaining ring 83, and then the control of the isolation frame 8 reverses. Therefore, by setting a partition rod on the feed hopper 31, automatic screening of large aggregates can be achieved at the initial position of the washing box 3, ensuring the stable operation of the washing box 3.

[0040] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. A screening device for concrete production, characterized in that: include: The sand and gravel separator (1) is set horizontally on the ground, and the lower end is provided with a sand discharge port (11) and a crushed stone discharge port (12); The support frame (2) is set on the ground and located below the sand and gravel outlet; A cleaning box (3) is set on the support frame (2). The upper end of the cleaning box (3) is provided with a feed hopper (31) that connects to the crushed stone discharge port (12), and the lower side wall is provided with a discharge hopper (32). The lower end face of the cleaning box (3) is provided with multiple drain outlets (33). The stirring paddle (4) is vertically rotatably connected to the cleaning tank (3); A switching mechanism (5) is located at the lower end of the cleaning tank (3) and is used to control the opening and closing of the water outlet (33); The spraying mechanism (6) is located at the upper end inside the cleaning tank (3).

2. The screening equipment for concrete production according to claim 1, characterized in that: The switching mechanism (5) includes a switch frame (51), a switch plate (52), and a screw (53). The switch frame (51) is horizontally slidably connected to the lower end face of the cleaning tank (3). The switch plate (52) is horizontally arranged on the switch frame (51) and is used to cover the water outlet (33). The screw (53) is horizontally threaded to the cleaning tank (3) and rotatably connected to the switch frame (51).

3. The screening equipment for concrete production according to claim 1, characterized in that: The spraying mechanism (6) includes a water distribution pipe (61), a nozzle (62), and a water injection pipe (63). The water distribution pipe (61) is arranged in a ring shape inside the upper end of the cleaning tank (3). The nozzle (62) is arranged on the water distribution pipe (61), and the water injection pipe (63) is connected to the water distribution pipe (61).

4. A screening device for concrete production according to claim 1, characterized in that: The lower end of the cleaning tank (3) is provided with a separation tank (7), the lower end of the separation tank (7) is open, and a filter conveyor belt (71) is horizontally rotatably connected inside the separation tank (7), and the filter conveyor belt (71) passes through one side of the separation tank (7).

5. A screening device for concrete production according to claim 4, characterized in that: A scraper (72) is provided at the end of the filter conveyor belt (71).

6. A screening device for concrete production according to claim 1, characterized in that: An isolation frame (8) is inclinedly arranged on the feed hopper (31), and multiple isolation rods (81) are spaced apart on the isolation frame (8).

7. A screening device for concrete production according to claim 6, characterized in that: The lower end of the isolation frame (8) is rotatably connected to the feed hopper (31), the feed hopper (31) is provided with a hook (82), and the isolation frame (8) is provided with a retaining ring (83) for the hook (82) to be hooked.

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