Device for reducing silt content index of finished aggregate

Abstract

The utility model provides a device for reducing the silt content index of finished aggregate, which comprises a screening box, an air screening component is arranged in the screening box, a screen with a vibration motor is arranged in the screening box, and the screen is positioned below the air screening component and is obliquely arranged in a left-high right-low manner; a washing box and a collecting frame below the washing box are arranged outside the screening box, the bottom of the washing box discharges materials to the collecting frame through a discharging pipe, and a discharging opening is formed in the collecting frame; the top of the screening box is provided with a discharging pipe and an air inlet pipe, the discharging pipe is oppositely communicated with a discharging opening formed in the bottom of the air screening assembly, the air inlet pipe is communicated with a wind power mechanism of the air screening assembly, and the screening box is communicated with the washing box through the discharging opening. The utility model has the advantages that the silt cleaning process is optimized, the screening efficiency and the dust removal effect are improved, the energy is saved, the consumption is reduced, and the water recycling is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to aggregate production and processing technical field, concretely relates to a device for reducing the mud content index of finished aggregate. BACKGROUND

[0002] In the production process of sand and gravel aggregate, the mud content is a crucial quality index, which directly affects the performance of the final concrete product, including strength, durability, workability and workability. In the actual production process, due to the complex source of raw materials, weathered interlayer, various factors in the mining and crushing process, often lead to the mud content of finished aggregate exceeds the standard, it is difficult to meet the demand of high quality concrete production.

[0003] Traditionally, the method of reducing the mud content of finished aggregate mainly includes water washing, screening and manual selection. However, these methods have many disadvantages, such as large water consumption, high energy consumption, low efficiency and high cost, especially in the water resource scarce area, water washing method is difficult to implement, it is difficult to meet the demand of high quality aggregate production. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a device for reducing the mud content index of finished aggregate, which optimizes the mud and sand cleaning process, improves the screening efficiency and dust removal effect, saves energy and reduces consumption, and realizes water recycling.

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

[0006] A device for reducing the mud content index of finished aggregate, including screening box, the built-in wind screen assembly of screening box, the screen mesh with vibration motor is equipped in screening box, the screen mesh is located below the wind screen assembly and is inclined to set left high right low; The water washing tank outside the screening box and the collecting frame below the water washing tank, the water washing tank bottom discharges to the collecting frame through the discharge pipe, the collecting frame is equipped with discharge opening;

[0007] The top of the screening box is respectively provided with a discharge pipe and an air inlet pipe, the discharge pipe is arranged in the air inlet pipe, the air inlet pipe is arranged in the air inlet pipe, and the air inlet pipe is arranged in the air inlet pipe.

[0008] Further, the wind screen assembly is in the form of a tube cavity, and the innermost side of the tube cavity is provided with a wind power mechanism including a first mounting plate, a first motor and a fan blade.

[0009] Further, the fan blade of the wind power mechanism is provided with a protective net in front of the fan blade.

[0010] Further, the water washing box drives the cleaning roller brushes arranged in parallel inside the water washing box to roll and wash through the driving mechanism on the outer top of the water washing box, the driving mechanism comprises a second motor located at the center, a plurality of transmission gears and a connecting shaft, the connecting shaft is connected to the transmission gears and extends into the water washing box to be connected to the cleaning roller brushes, the motor shaft of the second motor is connected and fixed to the connecting shaft located at the center, and the transmission gears located at the center drive the transmission gears on both sides to rotate.

[0011] Further, the water pump is arranged in the collecting frame, and the water pump pumps the water in the collecting frame into the water washing box through the connecting water pipe arranged outside the water pump, so that the water is recycled.

[0012] Further, the collecting frame is provided with a filter screen with a rear part being higher and a front part being lower at the open top of the collecting frame.

[0013] Further, the water pump is arranged in the collecting frame, and the water pump pumps the water in the collecting frame into the water washing box through the connecting water pipe arranged outside the water pump, so that the water is recycled.

[0014] Further, the water pump is arranged in the collecting frame, and the water pump pumps the water in the collecting frame into the water washing box through the connecting water pipe arranged outside the water pump, so that the water is recycled.

[0015] Further, the screen box is provided with a door, and the mud blocks falling through the screen are taken out through the door.

[0016] Compared with the prior art, the device has the following advantages:

[0017] The device can first perform air screening on the aggregate, remove the dust in the aggregate, then perform screening on the mud blocks in the aggregate through the vibration of the screen, and then brush the mud attached to the surface of the aggregate, so that the mud in different forms in the aggregate is cleaned in different ways, the cleaning process of the mud in the aggregate is optimized, the dust removal effect and the screening efficiency of the mud in the aggregate are enhanced, further, the washed water can be filtered and reused in the water washing box, water recycling is realized, water consumption is saved, and water consumption is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a front structure schematic view of the device.

[0019] Figure 2 is a front structure schematic view of the device.

[0020] Figure 3 is a front structure schematic view of the air screening assembly of the device.

[0021] Figure 4 is a front structure schematic view of the collecting frame of the device.

[0022] Figure 5 This is a side cross-sectional structural diagram of the collection frame of this utility model.

[0023] Reference numerals: 1. Screening box; 2. Screen; 3. Vibrating motor; 4. Air screen assembly; 41. Pipe cavity; 42. First mounting plate; 43. First motor; 44. Fan blade; 45. Air inlet pipe; 46. Material discharge opening; 47. Protective net; 5. Discharge pipe; 6. Washing tank; 7. Discharge pipe; 8. First valve; 9. Washing assembly; 91. Connecting shaft; 92. Cleaning roller brush; 93. Transmission gear; 94. Second mounting plate; 95. Second motor; 10. Collection frame; 11. Filter screen; 12. Discharge opening; 13. Water pump; 14. Connecting water pipe; 15. Box filter; 16. Drain pipe; 17. Second valve; 18. Discharge opening; 19. Box door; 20. Controller. Detailed Implementation

[0024] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0025] like Figure 1 , 2 As shown, a device for reducing the mud content of finished aggregates includes a screening box 1 with a built-in air screen assembly 4. The screening box 1 contains a screen 2 equipped with a vibrating motor 3, located at the bottom of the screen 2. The screen 2 is positioned below the air screen assembly 4 and tilted to the left, with a higher elevation on the left and a lower elevation on the right. A discharge pipe 5 and an air inlet pipe 45 are respectively opened at the top of the screening box 1. The discharge pipe 5 is connected to a material drop opening 46 at the bottom of the air screen assembly 4, and the air inlet pipe 45 is connected to the air power mechanism of the air screen assembly 4. A washing tank 6 and a collection frame 10 are externally mounted on the screening box 1. The screening box 1 and the washing tank 6 are connected through a discharge opening 18. Specifically, the discharge opening 18 is located between the right side of the screening box 1 and the left side of the washing tank 6, and the lowest point of the material drop from the screen 2 smoothly connects with the bottom surface of the discharge opening 18, meaning the lowest point of the material drop from the screen 2 and the bottom surface of the discharge opening 18 are at the same horizontal level. The bottom of the washing tank 6 discharges material to the collection frame 10 through the discharge pipe 7, and the collection frame 10 is provided with a discharge opening 12.

[0026] Specifically, the air-screen assembly 4 has a tubular structure 41, with one end open and the other end closed. The tubular structure 41 penetrates the side wall of the screening box 1 and opens outward. Inside the tubular structure 41, at its innermost side, is a wind-powered mechanism including a first mounting plate 42, a first motor 43, and fan blades 44. The first motor 43 is mounted and fixed to the first mounting plate 42, and the fan blades 44 are shaft-connected to the output shaft of the first motor 43. A protective net 47 is provided on the front side of the fan blades 44. The protective net 47 is provided to protect the first motor 43 and the fan blades 44 from aggregate falling onto them and causing damage.

[0027] Specifically, the water washing box 6 drives the cleaning roller brushes 92 arranged in parallel inside the water washing box 6 to roll and wash by a driving mechanism on the outer top of the water washing box 6, the cleaning roller brushes 92 are three in number, the driving mechanism comprises a second motor 95 located at the center, three sets of transmission gears 93 and a connecting shaft 91, the connecting shaft 91 is connected to the transmission gears 93 and extends into the water washing box 6 through a through hole formed on the top of the water washing box 6 and is connected to the cleaning roller brushes 92, the motor shaft of the second motor 95 is connected and fixed to the connecting shaft 91 located at the center, and the transmission gear 93 located at the center drives the transmission gears 93 on both sides to rotate. The bottom of the water washing box 6 is provided with a discharge pipe 7, and the discharge pipe 7 is controlled to open and close by a first valve 8.

[0028] Specifically, as shown in Figure 4 , 5 The top of the collecting frame 10 is provided with a filter screen 11 with a rear high and a front low, and the lowest part of the filter screen 11 is smoothly connected with a discharge opening 12. The collecting frame 10 is provided with a water pump 13, and the water pump 13 pumps the water in the collecting frame 10 into the water washing box 6 through a connecting water pipe 14 arranged outside the water pump 13, so as to realize the recycling of the water. Preferably, a box filter 15 is arranged outside the water pump 13.

[0029] The side wall of the collecting frame 10 close to the bottom is provided with a drain pipe 16, and the drain pipe 16 is controlled to open and close by a second valve 17.

[0030] The screening box 1 is provided with a box door 19 for taking out the mud blocks screened and fallen.

[0031] The screening box 1 further comprises a controller 20, and the controller 20 is in communication connection with the first motor 43 and the second motor 95 respectively.

[0032] The working principle of the utility model is: firstly, the aggregate is put into the discharging pipe 5, the aggregate enters the pipe cavity 41 of the wind screen assembly 4 from the discharging pipe 5, the controller 20 controls the first motor 43 to start, the first motor 43 drives the fan blade 44 to rotate, blows away the dust in the aggregate and discharges from the pipe cavity 41, at the same time, the aggregate and the mud block fall on the screen 2 through the discharging opening 46; then, the screen 2 is vibrated by the vibration motor 3 to screen the mud block in the aggregate, the mud block falls on the bottom of the inner cavity of the screening box 1 after passing through the screen hole of the screen 2, and the aggregate continues to roll on the screen 2 and enters the water washing box 6 through the discharging opening 18; then, the second motor 95 is controlled to start by the controller 20, the second motor 95 drives the connecting shaft 91 at the center to rotate, the two connecting shafts 91 on the side are also rotated synchronously through the cooperation of the three transmission gears 93, the connecting shaft 91 drives the cleaning roller brush 92 to rotate, the cleaning roller brush 92 rotates to make the bristles on the surface brush the aggregate, and the mud attached to the surface of the aggregate is brushed off; finally, after brushing, the first valve 8 is opened to make the aggregate and water in the water washing box 6 discharge through the discharge pipe 7, the aggregate falls on the filter screen 11 of the collecting frame 10 and continues to slide and discharge from the discharging opening 12, and the water passes through the filter screen 11 and falls on the bottom of the inner cavity of the collecting frame 10. Through the above-mentioned mode, the different forms of mud in the aggregate can be cleaned in different ways, the cleaning process of the mud and sand in the aggregate is optimized, and the dust removal effect and efficiency of the mud in the aggregate are enhanced.

[0033] The water pump 13 is started, the water box filter 15 in the collecting frame 10 filters the mud and sand in the water again, the water pump 13 pumps out the filtered water and pumps into the water washing box 6 through the connecting water pipe 14 for reuse, so that the water is recycled, water is saved, and the water consumption is reduced.

[0034] The above-mentioned is only the preferred embodiment of the utility model, it should be pointed out that, for the ordinary skilled person in the art, without departing from the concept of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A device for reducing the silt content index of a finished aggregate, comprising a screening box, characterized in that: The screening box is provided with a wind screen assembly, a screen with a vibrating motor is arranged in the screening box, the screen is arranged below the wind screen assembly and is arranged in a left-high right-low inclined manner; the screening box is provided with a water washing box and a collecting frame below the water washing box, the water washing box is provided with a discharge pipe at the bottom to discharge materials to the collecting frame, and the collecting frame is provided with a discharge opening; The screening box is provided with a discharge pipe and an air inlet pipe, the discharge pipe is arranged in communication with a discharge opening arranged at the bottom of the wind screen assembly, and the air inlet pipe is arranged in communication with a wind power mechanism of the wind screen assembly.

2. A device for reducing the clay content index of a finished aggregate according to claim 1, characterized in that: The wind screen assembly is in a tube cavity structure, and the wind power mechanism including a first mounting plate, a first motor and a fan blade is arranged at the innermost side of the tube cavity.

3. A device for reducing the clay content index of a finished aggregate according to claim 2, characterized in that: The fan blade of the wind power mechanism is provided with a protective net.

4. The device for reducing the clay content index of the finished aggregate according to claim 1 or 2, characterized in that: The water washing box is provided with driving mechanisms at the outer top portion to drive the cleaning roller brushes arranged in parallel to roll and clean, the driving mechanisms include a second motor arranged at the center, a plurality of transmission gears and a connecting shaft, the connecting shaft is connected to the transmission gears and extends into the water washing box to be connected to the cleaning roller brushes, a motor shaft of the second motor is connected and fixed to the connecting shaft arranged at the center, and the transmission gears arranged at the center drive the transmission gears on both sides to rotate.

5. A device for reducing the clay content index of a finished aggregate according to claim 4, characterized in that: The collecting frame is provided with a water pump, the water pump pumps water in the collecting frame into the water washing box through a connecting water pipe arranged outside the water pump, so that the water is recycled.

6. A device for reducing the clay content indicator of a finished aggregate according to claim 5, characterized in that: The collecting frame is provided with a filter screen arranged in a rear-high front-low manner at the open top portion.

7. A device for reducing the clay content indicator of a finished aggregate according to claim 5 or 6, characterized in that: The water pump is covered with a box filter outside.

8. A device for reducing the clay content indicator of a finished product aggregate according to claim 7, characterized in that: The side wall of the collecting frame close to the bottom is provided with a drain pipe.

9. The apparatus of claim 1, wherein: The screening box is provided with a box door to take out the mud blocks screened and fallen.

Images