Quartz sand granularity online detecting and sorting device

Abstract

A quartz sand granularity on-line detecting and sorting device comprises a negative pressure oscillation sorting mechanism and a quartz sand conveying mechanism. The negative-pressure oscillation sorting mechanism comprises a negative-pressure cavity, a screening plate and a pushing assembly, and the negative-pressure cavity is arranged above the quartz sand conveying mechanism; the screening plate and the material pushing assembly are arranged in the negative pressure cavity, the material pushing assembly is arranged above the screening plate and comprises a material pushing plate, the material pushing plate is arranged in a sliding mode relative to the screening plate, the material pushing plate is configured to move in a reciprocating mode, and the negative pressure oscillation sorting mechanism adsorbs quartz sand through the negative pressure cavity and assists in discharging screened materials through the material pushing plate. Compared with a traditional vibrating screen, the vibrating screen does not need high-frequency mechanical vibration, the problem of high abrasion of a mechanical vibrating screen is solved, the durability and stability of equipment are improved, noise pollution during operation is reduced, the working environment is improved, and the operation comfort of operators is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of quartz sand sorting, and specifically refers to an on-line detection and sorting device for the particle size of quartz sand. Background Art

[0002] Quartz sand is an important industrial raw material, which is widely used in industries such as glass manufacturing, casting, ceramics, refractory materials, and construction. The particle size of quartz sand directly affects its application performance and product quality. Therefore, in the production process, the detection and sorting of the particle size of quartz sand are of great significance.

[0003] At present, the commonly used quartz sand sorting equipment in industrial production is mainly a vibrating screen. The vibrating screen makes quartz sand particles of different particle sizes pass through different specifications of sieve meshes in turn through mechanical vibration to achieve particle classification. However, in the long-term use process of the vibrating screening technology, there is a serious problem of mechanical wear. The vibrating screen relies on the mechanical structure to perform high-frequency vibration. During continuous operation, the sieve mesh and related components are prone to wear, resulting in a decrease in screening accuracy and thus affecting production efficiency. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an on-line detection and sorting device for the particle size of quartz sand to at least partially solve the above technical problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides an on-line detection and sorting device for the particle size of quartz sand, which includes a negative pressure oscillation sorting mechanism and a quartz sand transmission mechanism. The negative pressure oscillation sorting mechanism includes a negative pressure cavity, a screening plate, and a material pushing component. The negative pressure cavity is arranged above the quartz sand transmission mechanism; the screening plate and the material pushing component are arranged inside the negative pressure cavity. The material pushing component is arranged above the screening plate, and includes a material pushing plate which is slidably arranged relative to the screening plate, and the material pushing plate is configured to move reciprocally.

[0006] Further, screening channels are arranged on the screening plate, and the screening channels are arranged in a linear array and completely penetrate the screening plate; one-way through holes are arranged on the material pushing plate, and the one-way through holes are arranged in a linear array and completely penetrate the material pushing plate; the screening channels and the one-way through holes are arranged alternately.

[0007] Further, a spring cover plate is arranged on the material pushing plate, and the spring cover plate is arranged above the one-way through hole and is rotatably connected to the material pushing plate; the material pushing component includes a differential cylinder, and the differential cylinder is arranged on the negative pressure cavity and is configured to drive the movement of the material pushing plate.

[0008] Further, a connecting pipe and a bottom opening are provided on the negative pressure cavity. The connecting pipe is arranged at the top of the negative pressure cavity, and the bottom opening is arranged at the bottom of the negative pressure cavity.

[0009] Further, a material distribution channel is provided on the negative pressure cavity. The material distribution channel is arranged on the side of the negative pressure cavity away from the differential cylinder. The material distribution channel is communicated with the inside of the negative pressure cavity, and a discharge baffle is arranged at the end of the material distribution channel.

[0010] Further, an adjustment bracket is further included. The material distribution channel is connected to the adjustment bracket, and the adjustment bracket is configured to adjust the inclination angle of the material distribution channel.

[0011] Further, a filter screen is arranged inside the negative pressure cavity, and the filter screen is arranged above the pushing plate.

[0012] Further, the quartz sand transmission mechanism includes a conveyor belt and a conveying bracket. The conveyor belt is arranged on the conveying bracket. The conveyor belt is configured to convey quartz sand, and the conveyor belt is arranged below the bottom opening.

[0013] Compared with the prior art, the present invention has the following advantages: The negative pressure oscillation sorting mechanism uses the negative pressure cavity to adsorb quartz sand and uses the pushing plate to assist in discharging the screened materials. Compared with the traditional vibrating screen, the present invention does not require high-frequency mechanical vibration, avoids the high wear problem of the mechanical vibrating screen, improves the durability and stability of the equipment, reduces the noise pollution during operation at the same time, and improves the working environment.

[0014] By providing a negative pressure environment through the negative pressure cavity, the quartz sand is screened in a closed space, and the fine dust generated during the screening process is effectively collected, avoiding the diffusion of dust, improving the cleanliness of the workplace, and thus effectively protecting the health of workers. Description of the Drawings

[0015] Figure 1 is a perspective view of an on-line detection and sorting device for quartz sand particle size proposed by an embodiment of the present invention; Figure 2 is a front view of an on-line detection and sorting device for quartz sand particle size proposed by an embodiment of the present invention; Figure 3 is Figure 2 a cross-sectional view taken along the A-A direction in Figure 4 is Figure 3 an enlarged view of part Ⅰ in Figure 5 is a perspective view of a screening plate of an on-line detection and sorting device for quartz sand particle size proposed by an embodiment of the present invention; Figure 6A perspective view of the pusher assembly of an on-line detection and sorting device for the particle size of quartz sand according to an embodiment of the present invention; Figure 7 is Figure 6 an enlarged view of part II in

[0016] Among them, 100, negative pressure oscillation sorting mechanism; 200, quartz sand transmission mechanism; 110, negative pressure cavity; 111, connecting pipe; 112, bottom opening; 113, material distribution channel; 114, discharge baffle; 115, adjustment bracket; 116, filter screen; 120, screening plate; 121, screening channel; 130, pusher assembly; 131, pusher plate; 132, one-way through hole; 133, spring cover plate; 134, differential oil cylinder; 201, conveyor belt; 202, conveyor support.

[0017] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0020] Such as Figures 1-7As shown in the figure, this embodiment includes a negative pressure oscillation sorting mechanism 100 and a quartz sand transmission mechanism 200. The negative pressure oscillation sorting mechanism 100 is used to perform on-line sorting on the quartz sand during the transmission process to screen out the quartz sand with qualified particle size, improve the screening efficiency and reduce the dust pollution. The negative pressure oscillation sorting mechanism 100 mainly consists of a negative pressure cavity 110, a screening plate 120 and a material pushing component 130. Among them, the negative pressure cavity 110 is arranged above the quartz sand transmission mechanism 200 to provide a negative pressure attraction force, so that the quartz sand is sucked into the interior of the negative pressure cavity 110 during the transmission process for screening. The screening plate 120 is installed inside the negative pressure cavity 110 and is used for preliminary screening of the sucked quartz sand, while the material pushing component 130 is located above the screening plate 120 and is used to assist the discharged quartz sand after screening. The material pushing component 130 includes a material pushing plate 131. The material pushing plate 131 is slidably arranged relative to the screening plate 120 and can reciprocate horizontally to smoothly push out the screened quartz sand from the system.

[0021] By using the negative pressure oscillation sorting mechanism 100 to replace the traditional mechanical vibrating screen, a more efficient and low-noise quartz sand screening method can be realized; the traditional vibrating screen relies on mechanical vibration to sort materials, resulting in relatively large noise and mechanical wear, and may generate a large amount of dust during the screening process, affecting the health of workers; in this embodiment, the setting of the negative pressure cavity 110 can not only provide a stable negative pressure attraction force, so that the quartz sand on the quartz sand transmission mechanism 200 is sucked into the screening area, but also reduce the dust diffusion to a certain extent and improve the cleanliness of the working environment.

[0022] During the specific use process, when the quartz sand enters the interior of the negative pressure cavity 110, it first contacts the screening plate 120. The screening plate 120 performs grading screening on the quartz sand. The quartz sand with qualified particle size can smoothly pass through the screening plate 120 and fall onto the material pushing plate 131, while the larger particles that do not meet the screening requirements will be blocked by the screening plate 120 and fall back onto the quartz sand transmission mechanism 200 again; after the screening is completed, the material pushing plate 131 reciprocates to push the screened quartz sand out of the negative pressure oscillation sorting mechanism 100, realizing continuous and stable on-line sorting and improving the automation degree of quartz sand screening.

[0023] The negative pressure oscillation sorting mechanism 100 uses the negative pressure cavity 110 to adsorb the quartz sand and uses the material pushing plate 131 to assist in discharging the screened materials. Compared with the traditional vibrating screen, this equipment does not require high-frequency mechanical vibration, avoiding the high wear problem of the mechanical vibrating screen, improving the durability and stability of the equipment, reducing the noise pollution during operation, improving the working environment and enhancing the operation comfort of the operator.

[0024] The negative pressure chamber 110 provides a negative pressure environment, the quartz sand is screened in a closed space, and the tiny dust generated during the screening process is effectively collected to avoid dust diffusion, improve the cleanliness of the workplace, and thus effectively protect the health of workers.

[0025] In this embodiment, a screening channel 121 is provided on the screening plate 120, and the screening channel 121 is arranged along a linear array, and the screening channel 121 completely penetrates the screening plate 120; a one-way through hole 132 is provided on the pushing plate 131, and the one-way through hole 132 is arranged along a linear array, and the one-way through hole 132 completely penetrates the pushing plate 131; the screening channel 121 and the one-way through hole 132 are staggered, and when the positions of the screening channel 121 and the one-way through hole 132 overlap, the quartz sand passes through the screening channel 121 and the one-way through hole 132 in turn and enters the pushing plate 131, and when the positions of the screening channel 121 and the one-way through hole 132 overlap, the quartz sand passes through the screening channel 121 and the one-way through hole 132 in turn and enters the pushing plate 131. When the two portions are offset, the screening plate 120 and the pushing assembly 130 separate the negative pressure chamber 110 and the quartz sand transmission mechanism 200, and the quartz sand on the quartz sand transmission mechanism 200 is no longer subject to the negative pressure attraction. With the reciprocating translational motion of the pushing assembly 130, the positional relationship between the screening channel 121 and the one-way through hole 132 continuously changes between overlapping and offsetting, and the quartz sand on the quartz sand transmission mechanism 200 is subject to intermittent attraction, so that the quartz sand on the quartz sand transmission mechanism 200 presents a state of periodic adsorption and release under the action of the negative pressure chamber 110, thereby forming a stable oscillating screening effect.

[0026] Through negative pressure oscillation screening, this embodiment can effectively avoid the noise, dust pollution and equipment wear problems caused by mechanical vibration of traditional vibrating screens, and at the same time achieve more accurate particle size screening; the device can not only ensure the rapid sorting of quartz sand that meets the particle size requirements, but also can efficiently divert quartz sand that does not meet the particle size requirements and return it to the crushing process, thereby improving the overall screening efficiency and enhancing the degree of automation and stability of the production process.

[0027] The push plate 131 proposed in the present embodiment is provided with a spring cover 133, which is arranged above the one-way through hole 132. The spring cover 133 and the push plate 131 are rotatably connected. When the negative pressure chamber 110 generates a negative pressure environment above the push plate 131, the spring cover 133 is attracted to flip upward, and at this time, quartz sand can pass through the one-way through hole 132 and enter the push plate 131; when the screening channel 121 and the one-way through hole 132 are misaligned and the negative pressure chamber 110 is in a closed state, the spring cover 133 itself drives the spring cover 133 to reset and cover the one-way through hole 132 to prevent the quartz sand on the push plate 131 from falling again.

[0028] By setting a spring cover plate 133 on the pusher plate 131, the dynamic control of the one-way through hole 132 is realized, enabling the quartz sand to smoothly pass through the screening structure and enter the pusher plate 131. At the same time, after the negative pressure effect disappears, the spring cover plate 133 can automatically close, effectively preventing the screened quartz sand particles from falling back to the quartz sand transmission mechanism 200 and avoiding affecting the screening efficiency.

[0029] The pusher assembly 130 proposed in this embodiment includes a differential cylinder 134. The differential cylinder 134 is arranged on the negative pressure cavity 110. The differential cylinder 134 is configured to drive the movement of the pusher plate 131. The differential cylinder 134 performs differential motion, that is, the speeds of the piston rod extending and retracting are different. When the piston rod of the differential cylinder 134 extends at a slower speed, the pusher plate 131 moves forward together with the quartz sand thereon. During this process, due to the action of static friction, the quartz sand will not undergo obvious slippage, thus realizing stable transportation. When the piston rod retracts at a high speed, the pusher plate 131 quickly resets, while the quartz sand on the pusher plate 131 remains in place due to inertia, realizing slippage relative to the pusher plate 131 and finally being gathered on one side of the pusher plate 131, thereby completing the smooth discharge of the quartz sand.

[0030] This embodiment uses the combination of negative pressure oscillating screening and the pusher method driven by a differential cylinder, reducing the loss of the equipment and noise pollution caused by mechanical vibration. At the same time, the differential motion method is used to control the transportation path of the quartz sand, ensuring that the screened quartz sand particles can be efficiently transported to the designated position and avoiding the accumulation of quartz sand on the pusher plate 131.

[0031] In this embodiment, a connecting pipe 111 and a bottom opening 112 are provided on the negative pressure cavity 110. The connecting pipe 111 is arranged at the top of the negative pressure cavity 110, and the bottom opening 112 is arranged at the bottom of the negative pressure cavity 110. The connecting pipe 111 is connected to an external vacuum pump, and the bottom opening 112 corresponds to the quartz sand on the quartz sand transmission mechanism 200.

[0032] The negative pressure cavity 110 is connected to an external vacuum pump through the connecting pipe 111, enabling the negative pressure cavity 110 to generate a continuous negative pressure environment, thereby realizing the attraction of the quartz sand. The bottom opening 112 ensures that the quartz sand can smoothly flow into the screening area of the negative pressure cavity 110, reducing the accumulation or blockage of the quartz sand during the screening process and improving the screening efficiency.

[0033] In this embodiment, a material distribution channel 113 is provided on the negative pressure cavity 110. The material distribution channel 113 is located on the side of the negative pressure cavity 110 away from the differential cylinder 134 and is communicated with the inside of the negative pressure cavity 110. The material distribution channel 113 provides a channel for the outflow of materials during the quartz sand sorting process, ensuring the smooth flow of the quartz sand during the sorting process and reducing blockage phenomena.

[0034] The quartz sand screened out on the pushing plate 131 can be taken out through the material distribution channel 113. At the same time, a discharge baffle 114 is provided at the end of the material distribution channel 113, which is in the closed state during the screening operation and in the open state after the screening is completed.

[0035] In this embodiment, an adjustment bracket 115 is also provided. The adjustment bracket 115 is connected to the material distribution channel 113 and is configured to adjust the inclination angle of the material distribution channel 113. Through the action of the adjustment bracket 115, the angle of the material distribution channel 113 can be flexibly adjusted, so that according to different working requirements and material characteristics, the direction and speed of material flow can be optimized. The adjustment bracket 115 can not only improve the accuracy of the material distribution process, but also adjust the angle of the material distribution channel according to the different particle sizes and physical properties of the material to achieve the best sorting effect, and can adapt to different production environments and the characteristics of quartz sand, thereby improving the adaptability and stability of the entire device and ensuring the efficient and uniform export of quartz sand.

[0036] In this embodiment, a filter screen 116 is provided inside the negative pressure cavity 110. The filter screen 116 is located above the pushing plate 131. The function of the filter screen 116 is to effectively prevent quartz sand particles from entering the connecting pipe 111, thereby avoiding damage to the vacuum pump connected to the connecting pipe 111 due to the inhalation of quartz sand particles. By setting the filter screen 116, it is ensured that the quartz sand particles can be properly separated and screened when passing through the negative pressure cavity 110, reducing the wear and potential damage risk to the equipment. The filter screen 116 not only improves the durability of the equipment, but also enhances the stability of the system, extends the service life of the vacuum pump and other components. At the same time, the design of the filter screen is also convenient for cleaning and maintenance, ensuring the high efficiency and reliability during long-term operation.

[0037] In this embodiment, the quartz sand transmission mechanism 200 includes a conveyor belt 201 and a conveyor support 202. The conveyor belt 201 is fixedly arranged through the conveyor support 202 and is configured to convey the quartz sand raw material. The conveyor belt 201 is arranged below the bottom opening 112 of the negative pressure cavity 110 and is responsible for conveying the screened and sorted quartz sand from the negative pressure cavity 110 to the subsequent processing area. During actual operation, the conveyor belt 201 conveys the quartz sand to the designated position through a stable movement, ensuring the continuous flow and efficient conveying of the quartz sand.

[0038] The quartz sand transmission mechanism 200 ensures the stable conveyance of quartz sand, avoiding blockage or accidental dropping of quartz sand during the conveyance process. Meanwhile, the installation position of the conveyor belt 201 and the stability of the conveying support 202 effectively prevent the mutual interference between the negative pressure cavity 110 and the quartz sand transmission mechanism 200, ensuring the smooth operation of the entire system. In addition, the conveying support 202 ensures the tension and smooth movement of the conveyor belt 201, further improving the efficiency during the quartz sand transmission process. In this embodiment, a filter screen 116 is provided inside the negative pressure cavity 110. The filter screen 116 is located above the pusher plate 131. The function of the filter screen 116 is to effectively prevent quartz sand particles from entering the connecting pipe 111, thereby avoiding damage to the vacuum pump connected to the connecting pipe 111 due to the inhalation of quartz sand particles. By providing the filter screen 116, it is ensured that the quartz sand particles can be properly separated and screened when passing through the negative pressure cavity 110, reducing equipment wear and potential damage risks. The filter screen 116 not only improves the durability of the equipment, but also enhances the stability of the system, extending the service life of the vacuum pump and other components. At the same time, the design of the filter screen also facilitates cleaning and maintenance, ensuring high efficiency and reliability during long-term operation.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0040] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. An on-line detection and sorting device for the particle size of quartz sand, characterized in that: It includes a negative pressure oscillation sorting mechanism (100) and a quartz sand conveying mechanism (200). The negative pressure oscillation sorting mechanism (100) includes a negative pressure cavity (110), a screening plate (120), and a material pushing assembly (130). The negative pressure cavity (110) is arranged above the quartz sand conveying mechanism (200). The screening plate (120) and the material pushing assembly (130) are arranged inside the negative pressure cavity (110). The material pushing assembly (130) is arranged above the screening plate (120). The material pushing assembly (130) includes a material pushing plate (131). The material pushing plate (131) is slidably arranged relative to the screening plate (120), and the material pushing plate (131) is configured to reciprocate along a horizontal direction.

2. The on-line detection and sorting device for the particle size of quartz sand according to claim 1, characterized in that: The screening plate (120) is provided with screening channels (121). The screening channels (121) are arranged in a linear array, and the screening channels (121) completely penetrate the screening plate (120). The material pushing plate (131) is provided with one-way through holes (132). The one-way through holes (132) are arranged in a linear array, and the one-way through holes (132) completely penetrate the material pushing plate (131). The screening channels (121) and the one-way through holes (132) are arranged staggeredly.

3. The on-line detection and sorting device for the particle size of quartz sand according to claim 2, wherein: The material pushing plate (131) is provided with a spring cover plate (133). The spring cover plate (133) is arranged above the one-way through holes (132), and the spring cover plate (133) is rotatably connected to the material pushing plate (131). The material pushing assembly (130) includes a differential cylinder (134). The differential cylinder (134) is arranged on the negative pressure cavity (110), and the differential cylinder (134) is configured to drive the movement of the material pushing plate (131).

4. The on-line detection and sorting device for the particle size of quartz sand according to claim 3, characterized in that: The negative pressure cavity (110) is provided with a connecting pipe (111) and a bottom opening (112). The connecting pipe (111) is arranged at the top of the negative pressure cavity (110), and the bottom opening (112) is arranged at the bottom of the negative pressure cavity (110).

5. The on-line detection and sorting device for the particle size of quartz sand according to claim 4, characterized in that: The negative pressure cavity (110) is provided with a material distribution channel (113). The material distribution channel (113) is arranged on one side of the negative pressure cavity (110) away from the differential cylinder (134), and the material distribution channel (113) is communicated with the inside of the negative pressure cavity (110). An outlet baffle (114) is arranged at the end of the material distribution channel (113).

6. The on-line detection and sorting device for the particle size of quartz sand according to claim 5, characterized in that: It further includes an adjustment bracket (115). The material distribution channel (113) is connected to the adjustment bracket (115), and the adjustment bracket (115) is configured to adjust the inclination angle of the material distribution channel (113).

7. The on-line detection and sorting device for the granularity of quartz sand according to claim 6, characterized in that: A filter screen (116) is arranged inside the negative pressure cavity (110), and the filter screen (116) is arranged above the material pushing plate (131).

8. The on-line detection and sorting device for the particle size of quartz sand according to claim 7, characterized in that: The quartz sand conveying mechanism (200) includes a conveying belt (201) and a conveying bracket (202). The conveying belt (201) is arranged on the conveying bracket (202). The conveying belt (201) is configured to convey quartz sand, and the conveying belt (201) is arranged below the bottom opening (112).

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