A sandstone soil removing and screening machine

Abstract

The application provides a sandstone soil removing and vibrating screen machine, and belongs to the technical field of sandstone processing equipment. The sandstone soil removing and vibrating screen machine solves the problem of low soil removing efficiency of the existing stone aggregate surface soil. The sandstone soil removing and vibrating screen machine comprises a rectangular machine shell, the machine shell is arranged in an inclined manner, the front end of the machine shell is low, the rear end of the machine shell is high, the front end of the machine shell is provided with a discharge port, a linear vibration feeding assembly is arranged in the machine shell, the linear vibration feeding assembly is arranged along the length direction of the machine shell, a vibrator assembly is arranged above the linear vibration feeding assembly and fixed on the machine shell, the linear vibration feeding assembly comprises support rods arranged along the width direction of the machine shell, the support rods are provided in a plurality of groups, all the support rods are arranged in an interval manner along the length direction of the machine shell, and a soil leakage interval one is arranged between two adjacent support rods. The structure realizes the separation of the sandstone aggregate and the soil, the sandstone aggregate has high soil removing efficiency, and the soil is removed completely.

Description

Technical Field

[0001] This invention belongs to the technical field of sand and gravel processing equipment, specifically referring to a sand and gravel soil removal vibrating screen. Background Technology

[0002] In road construction, sand and gravel are indispensable materials used for paving roadbeds and pavements. However, sand and gravel obtained directly from the excavation site often contain stones of varying sizes, which need to be screened to ensure the quality and suitability of the sand and gravel. Different sand and gravel mining environments result in different sand and gravel quality. Some harsh mining environments can cause some sand and gravel aggregates to be covered with soil, weakening the bond between cement and the aggregates, leading to a decrease in compressive and flexural strength. Soil lumps form weak areas in concrete, easily causing stress concentration and reducing structural stability. Soil increases internal porosity and microcracks, making it easier for harmful ions to penetrate, resulting in a decrease in durability indicators such as impermeability and frost resistance. At the same time, the water absorption and expansion characteristics of soil can damage the internal structure of concrete, exacerbating the risk of shrinkage deformation and cracking.

[0003] In summary, sand and gravel aggregates contaminated with soil need to undergo further soil removal processing before use, but current technology does not have dedicated equipment for soil removal from sand and gravel aggregates. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a sand and gravel soil removal vibrating screen. The technical problem to be solved by this invention is: how to improve the soil removal efficiency on the surface of sand and gravel aggregates.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] This sand and gravel soil removal vibrating screen includes a rectangular casing, which is inclined and has a lower front end and a higher rear end. The front end of the casing has a discharge port. A linear vibrating feeding assembly is installed inside the casing, which is arranged along the length of the casing. Above the linear vibrating feeding assembly is a vibrator assembly fixed to the casing. The linear vibrating feeding assembly includes a number of support rods arranged along the width of the casing. All support rods are spaced apart along the length of the casing, and there is a soil leakage gap between two adjacent support rods.

[0007] The linear vibrating feeding assembly also includes several rows of vibrating block groups arranged on the support rod. All vibrating block groups are spaced apart along the length of the support rod, and each row of vibrating block groups is arranged along the length of the machine casing. A stone conveying channel is formed between two adjacent vibrating block groups.

[0008] Each vibrating block group includes several vibrating block units spaced apart along the length of the casing. Each vibrating block unit is mounted on at least two support rods and can slide along the axial direction of the support rods. Each vibrating block unit has springs sleeved on the support rods on its left and right sides, and each vibrating block unit is clamped by the springs on its left and right sides.

[0009] After the vibrator assembly is working, the entire casing and the linear vibrating feeding assembly are in a vibrating state, causing the sand and gravel aggregate to fall from the top of the rear end of the frame and land at the rear end of the linear vibrating feeding assembly. The linear vibrating feeding assembly forms several stone conveying channels from the rear end to the front end of the casing, conveying the sand and gravel aggregate through these channels. This prevents the sand and gravel aggregate from accumulating in the middle of the linear vibrating feeding assembly, which is conducive to smooth conveying of the sand and gravel aggregate. The sand and gravel aggregate is vibrating in the conveying channels, and it will collide with the support rods and the side walls of the vibrating block unit, causing the soil on the sand and gravel aggregate to be shaken off. The shaken-off soil falls down from the soil leakage gap, realizing the separation of sand and gravel aggregate from soil. The sand and gravel aggregate gradually moves towards the discharge port along the stone conveying channels and finally falls out of the discharge port. The sand and gravel aggregate has high soil removal efficiency and cleans the soil.

[0010] Secondly, each stone conveying channel in this structure consists of two adjacent rows of vibrating block groups, and each row of vibrating block groups consists of several vibrating block units. After being impacted or squeezed, each vibrating block unit can overcome the spring force and move along the axial direction of the support rod, so that the width of the stone conveying channel can be dynamically adjusted at various positions. Since there is a lot of sand and gravel aggregate accumulating in the stone conveying channel, there is a risk of the sand and gravel aggregate getting stuck due to mutual squeezing. The design of this structure allows the vibrating block unit to overcome the spring force and slide along the axial direction of the support rod after the sand and gravel aggregate collides with the side wall of the vibrating block unit, so that the stone conveying channel expands at a certain position, significantly reducing the risk of sand and gravel aggregate getting stuck in the stone conveying channel and ensuring the smooth flow of the stone conveying channel.

[0011] In the aforementioned sand and gravel removal vibrating screen, each vibrating block unit is slidably mounted on three support rods, and springs are fitted onto the three support rods on the left and right sides of each vibrating block unit. This structure ensures that each vibrating block unit has a certain length and weight, giving it sufficient strength to impact the sand and gravel aggregate. Furthermore, the three support rods support the sliding of each vibrating block unit, ensuring stable sliding.

[0012] In the aforementioned sand and gravel removal vibrating screen, each vibrating block unit has mounting grooves on its left and right sides corresponding to the spring positions. Both ends of each spring extend into the corresponding mounting grooves, and a soil-leaking gap two is formed between the spring and the outer circumference of the support rod. This structural design ensures that the spring and support rod do not contact each other, and the spring is suspended. When soil falls onto the spiral spring, it vibrates and falls downwards through the soil-leaking gap two, making it difficult for soil to adhere to the spring. This ensures that the spring can be stably compressed without affecting the axial movement of the vibrating block unit along the support rod. Furthermore, when the sand and gravel aggregate collides with the spring, the spring has a certain elasticity, allowing the sand and gravel aggregate to bounce back, thereby increasing the collision or compression force between the sand and gravel aggregates and the collision force between the sand and gravel aggregates and the vibrating block unit, which is beneficial for the soil to fall off the sand and gravel aggregates.

[0013] In the aforementioned sand and gravel removal vibrating screen, the vibrating block unit includes a rectangular vibrating block body. The front side of the vibrating block body has a protruding sliding portion in the middle, and the rear side of the vibrating block body has a protruding mounting portion in the middle. A sliding groove is formed on the rear side of the mounting portion. The sliding portions of two adjacent vibrating block units in each column of vibrating block units are slidably disposed within the sliding groove. Two adjacent vibrating block units in each column of vibrating block units can slide relative to each other along the axial direction of the support rod. This structure allows all vibrating block units in each column of vibrating block units to be connected end-to-end sequentially. After all vibrating block units in each column of vibrating block units are connected end-to-end sequentially, they form a reinforcing beam perpendicular to all support rods. Multiple columns of vibrating block units form multiple reinforcing beams. All support rods and all vibrating block units form a horizontal and vertical grid structure, significantly increasing the load-bearing capacity of the linear vibrating feeding assembly. This makes the support rods less prone to bending deformation, and each vibrating block unit can slide independently without affecting the dynamic width adjustment of the stone conveying channel at various positions.

[0014] In the aforementioned sand and gravel removal vibrating screen, several ribs are provided on both the left and right sides of the vibrating block body. All ribs are vertical and spaced apart along the length of the stone conveying channel. During the conveying of sand and gravel aggregates along the stone conveying channel, the ribs increase the collision or friction between the sidewalls of the vibrating block unit and the sand and gravel aggregates, facilitating the removal of soil from the aggregates.

[0015] In the aforementioned sand and gravel removal vibrating screen, the upper surface of the vibrating block body has an arc-shaped arch, and a recess is formed between two adjacent arches along the length of each row of vibrating blocks. During the process of feeding sand and gravel aggregate into the linear vibrating feeding assembly, not all the aggregate falls precisely into the stone conveying channel; some aggregate falls onto the upper surface of the vibrating block unit. Since the entire linear vibrating feeding assembly is vibrating, the arch design makes the upper surface of the vibrating block unit not flat. This facilitates the aggregate falling into the stone conveying channel during vibration. The design of the arch and the recess creates an uneven structure along the length of each row of vibrating blocks. When the aggregate falls from the arch to the recess, the impact force is high, making it easier for the soil on the aggregate to fall off.

[0016] Compared with the prior art, the sand and gravel removal vibrating screen of the present invention has the following advantages:

[0017] 1. The sand and gravel aggregate falls into the stone conveying channel and is in a vibrating state within the conveying channel. The sand and gravel aggregate will collide with the support rod and the side wall of the vibrating block unit, causing the soil on the sand and gravel aggregate to be shaken off. The shaken-off soil falls down from the soil leakage gap, realizing the separation of sand and gravel aggregate from soil. The sand and gravel aggregate gradually moves towards the discharge port along the stone conveying channel and finally falls out from the discharge port. The sand and gravel aggregate has high soil removal efficiency and cleans the soil.

[0018] 2. The design of this structure allows the vibrating block unit to overcome the spring force and slide along the axial direction of the support rod after the sand and gravel aggregate collides with the side wall of the vibrating block unit. This causes the stone conveying channel to expand at a certain position, significantly reducing the risk of sand and gravel aggregate getting stuck in the stone conveying channel and ensuring the smooth flow of the stone conveying channel. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.

[0022] Figure 4 This is one of the partial cross-sectional structural schematic diagrams of the present invention.

[0023] Figure 5 yes Figure 4 A magnified structural diagram of part A in the middle.

[0024] Figure 6 This is the second partial cross-sectional structural schematic diagram of the present invention.

[0025] Figure 7 This is the third partial cross-sectional structural schematic diagram of the present invention.

[0026] Figure 8 This is a cross-sectional structural diagram of Embodiment 2 of the present invention.

[0027] In the diagram, 1. Casing; 2. Discharge port; 3. Linear vibratory feeding assembly; 30. Support rod; 31. Vibrating block assembly; 4. Vibrator assembly; 5. Soil leakage gap one; 6. Stone conveying channel; 7. Vibrating block unit; 70. Mounting groove; 71. Vibrating block body; 72. Sliding part; 73. Mounting part; 74. Sliding groove; 75. Rib; 76. Arched part; 77. Recessed part; 8. Spring; 9. Soil leakage gap two. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] Example 1

[0030] This sand and gravel soil removal vibrating screen includes a rectangular casing 1, which is inclined and has a lower front end and a higher rear end. The front end of the casing 1 has a discharge port 2. A linear vibrating feeding assembly 3 is installed inside the casing 1 and is arranged along the length of the casing 1. Above the linear vibrating feeding assembly 3 is a vibrator assembly 4 fixed on the casing 1. The linear vibrating feeding assembly 3 includes a number of support rods 30 arranged along the width of the casing 1. All support rods 30 are spaced apart along the length of the casing 1, and both ends of the support rods 30 are fixed to the casing 1. All support rods 30 are arranged parallel to each other, and there is a soil leakage gap of -5 between two adjacent support rods 30.

[0031] The linear vibrating feeding assembly 3 also includes several rows of vibrating block groups 31 arranged on the support rod 30. All vibrating block groups 31 are spaced along the length of the support rod 30. Each row of vibrating block groups 31 is arranged along the length of the casing 1. A stone conveying channel 6 is formed between two adjacent vibrating block groups 31.

[0032] Each vibrating block group 31 includes several vibrating block units 7 spaced apart along the length of the housing 1. Each vibrating block unit 7 is mounted on at least two support rods 30. Each vibrating block unit 7 can slide along the axial direction of the support rods 30. Each vibrating block unit 7 has springs 8 sleeved on the left and right sides of the support rods 30, and each vibrating block unit 7 is clamped by the springs 8 on its left and right sides. In this embodiment, each vibrating block unit 7 is slidably mounted on three support rods 30. The springs 8 sleeved on the three support rods 30 on the left and right sides of each vibrating block unit 7 can be selected according to the travel distance of the vibrating block unit along the axial direction of the support rods 30 during actual assembly. This ensures that the vibrating block unit can move along the axial direction of the support rods 30, but the travel distance is not too large, ensuring that the sliding part 72 and the sliding groove 74 will not disengage.

[0033] After the vibrator assembly 4 starts working, the entire casing 1 and the linear vibrating feeding assembly 3 are in a vibrating state, causing the sand and gravel aggregate to fall from above the rear end of the frame 1 and land at the rear end of the linear vibrating feeding assembly 3. The linear vibrating feeding assembly 3 has several stone conveying channels 6 running from the rear end to the front end of the casing 1, conveying the sand and gravel aggregate through these channels. This prevents the sand and gravel aggregate from accumulating in the middle of the linear vibrating feeding assembly 3, which is beneficial for the conveying of the sand and gravel aggregate. The sand and gravel aggregate falls into the stone conveying channel 6. The sand and gravel aggregate is in a vibrating state in the conveying channel 6. The sand and gravel aggregate will collide with the side wall of the support rod 30 and the vibrating block unit 7, causing the soil on the sand and gravel aggregate to be shaken off. The shaken-off soil falls down from the soil leakage gap 5, realizing the separation of sand and gravel aggregate from soil. The sand and gravel aggregate gradually moves towards the discharge port 2 along the stone conveying channel 6. The sand and gravel aggregate finally falls out from the discharge port 2. The sand and gravel aggregate has high soil removal efficiency and cleans the soil.

[0034] Secondly, each stone conveying channel 6 in this structure is composed of two adjacent rows of vibrating block groups 31, and each row of vibrating block groups 31 is composed of several vibrating block units 7. After being collided or squeezed, each vibrating block unit 7 can overcome the action of the spring 8 and move along the axial direction of the support rod 30, so that the width of each position of the stone conveying channel 6 can be dynamically adjusted. Since there is a lot of sand and gravel aggregate in the stone conveying channel 6, there is a risk of the sand and gravel aggregate getting stuck due to mutual squeezing. The design of this structure makes it possible for the vibrating block unit 7 to overcome the action of the spring 8 and slide along the axial direction of the support rod 30 after the sand and gravel aggregate collides with the side wall of the vibrating block unit 7, so that the stone conveying channel 6 expands at a certain position, which significantly reduces the risk of sand and gravel aggregate getting stuck in the stone conveying channel 6 and ensures the smooth flow of the stone conveying channel 6.

[0035] The vibrating block unit 7 includes a rectangular vibrating block body 71. The front side of the vibrating block body 71 has a protruding sliding part 72 in the middle and a protruding mounting part 73 in the middle of the rear side. The rear side of the mounting part 73 is provided with a sliding groove 74. The sliding parts 72 of two adjacent vibrating block units 7 in each row of vibrating block groups 31 are slidably disposed in the sliding groove 74. Two adjacent vibrating block units 7 in each row of vibrating block groups 31 can slide relative to each other along the axial direction of the support rod 30. This structure allows all the vibrating block units 7 in each column of vibrating block group 31 to be connected end to end in sequence. After all the vibrating block units 7 in each column of vibrating block group 31 are connected end to end in sequence, they are equivalent to forming a reinforcing beam perpendicular to all the support rods 30. Multiple columns of vibrating block groups 31 form multiple columns of reinforcing beams. All the support rods 30 and all the vibrating block groups 31 form a horizontal and vertical grid structure, which significantly increases the load-bearing capacity of the linear vibrating feeding assembly 3, making the support rods 30 less prone to bending deformation. In addition, each vibrating block unit 7 can slide independently without affecting the dynamic width adjustment of the stone conveying channel 6 at various positions.

[0036] Several ribs 75 are provided on both the left and right sides of the vibrating block body 71. All ribs 75 are vertical and spaced apart along the length of the stone conveying channel 6. During the conveying of sand and gravel aggregates along the stone conveying channel 6, the ribs 75 help to increase the collision or friction between the side wall of the vibrating block unit 7 and the sand and gravel aggregates, which is beneficial for the soil on the sand and gravel aggregates to fall off.

[0037] The upper surface of the vibrating block body 71 has an arc-shaped arched portion 76, and a recessed portion 77 is formed between two adjacent arched portions 76 along the length direction of each row of vibrating block groups 31. During the process of pouring sand and gravel aggregate into the linear vibrating feeding assembly 3, not all sand and gravel aggregate can fall accurately into the stone conveying channel 6. Some sand and gravel aggregate will fall on the upper surface of the vibrating block unit 7. Since the entire linear vibrating feeding assembly 3 is in a vibrating state, the design of the arched portion 76 makes the upper surface of the vibrating block unit 7 not flat. During the vibration process, it is conducive to the sand and gravel aggregate falling into the stone conveying channel 6. The design of the arched portion 76 and the recessed portion 77 makes each row of vibrating block groups 31 form an uneven structure along its length direction. When the sand and gravel aggregate is shaken from the arched portion 76 to the recessed portion 77, the collision force is high, and the soil on the sand and gravel aggregate is easier to fall off.

[0038] Example 2

[0039] This embodiment is basically the same as Embodiment 1 above, except that: each vibrating block unit 7 has a mounting groove 70 on its left and right sides corresponding to the position of the spring 8, and both ends of each spring 8 extend into the corresponding mounting groove 70. A soil leakage gap 2 9 is formed between the spring 8 and the outer peripheral surface of the support rod 30. The design of this structure ensures that the spring 8 does not contact the support rod 30 and the spring 8 is in a suspended state. After the soil falls onto the spiral spring 8, it falls downward from the soil leakage gap 2 9 because the spring 8 is also vibrating. This makes it difficult for the soil to adhere to the spring 8, thus ensuring that the spring 8 can be stably compressed and does not affect the axial movement of the vibrating block unit 7 along the support rod 30. In addition, after the sand and gravel aggregate collides with the spring 8, the spring 8 has a certain elasticity, which allows the sand and gravel aggregate to be bounced back, thereby increasing the collision or compression force between the sand and gravel aggregate and the collision force between the sand and gravel aggregate and the vibrating block unit 7, which is conducive to the soil falling off the sand and gravel aggregate.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A sand and gravel desoiling vibrating screen, comprising a rectangular casing (1) arranged at an incline, the front end of the casing (1) being lower than the rear end, the front end of the casing (1) having a discharge port (2), a linear vibrating feeding assembly (3) disposed inside the casing (1), the linear vibrating feeding assembly (3) being arranged along the length direction of the casing (1), and a vibrator assembly (4) fixed on the casing (1) above the linear vibrating feeding assembly (3), characterized in that, The linear vibration feeding assembly (3) includes a support rod (30) arranged along the width direction of the housing (1). There are several support rods (30), and all support rods (30) are spaced apart along the length direction of the housing (1). There is a soil leakage gap (5) between two adjacent support rods (30). The linear vibration feeding assembly (3) also includes several rows of vibration block groups (31) arranged on the support rod (30). All vibration block groups (31) are spaced apart along the length direction of the support rod (30), and each row of vibration block groups (31) is arranged along the length direction of the casing (1). A stone conveying channel (6) is formed between two adjacent vibration block groups (31). Each vibrating block group (31) includes several vibrating block units (7) spaced apart along the length of the casing (1). Each vibrating block unit (7) is mounted on at least two support rods (30). Each vibrating block unit (7) can slide along the axial direction of the support rod (30). Each vibrating block unit (7) has springs (8) sleeved on the support rod (30) on its left and right sides. Each vibrating block unit (7) is clamped by the springs (8) on its left and right sides.

2. The sand and gravel removal vibrating screen according to claim 1, characterized in that, Each vibrating block unit (7) is slidably mounted on three support rods (30), and the springs (8) are sleeved on the three support rods (30) on the left and right sides of each vibrating block unit (7).

3. A sand and gravel removal vibrating screen according to claim 1 or 2, characterized in that, Each vibrating block unit (7) has a mounting groove (70) on its left and right sides corresponding to the position of the spring (8). Both ends of each spring (8) extend into the corresponding mounting groove (70). A soil leakage gap (9) is formed between the spring (8) and the outer circumference of the support rod (30).

4. A sand and gravel removal vibrating screen according to claim 1, characterized in that, The vibrating block unit (7) includes a rectangular vibrating block body (71). The vibrating block body (71) has a protruding sliding part (72) in the middle of its front side and a protruding mounting part (73) in the middle of its rear side. The mounting part (73) has a sliding groove (74) on its rear side. The sliding parts (72) of two adjacent vibrating block units (7) in each row of vibrating block groups (31) are slidably disposed in the sliding groove (74). Two adjacent vibrating block units (7) in each row of vibrating block groups (31) can slide relative to each other along the axial direction of the support rod (30).

5. A sand and gravel removal vibrating screen according to claim 4, characterized in that, The vibrating block body (71) has several ribs (75) on its left and right sides. All ribs (75) are vertical and are spaced apart along the length of the stone conveying channel (6).

6. A sand and gravel removal vibrating screen according to claim 4, characterized in that, The upper surface of the vibrating block body (71) has an arc-shaped arch (76), and a recess (77) is formed between two adjacent arches (76) along the length direction of each row of vibrating blocks (31).

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