Grading drum screen applied to quartz sand

Abstract

The utility model relates to the technical field of quartz sand processing, and discloses a grading drum screen applied to quartz sand. Quartz sand to be screened can be put into the drum screen, after the servo motor is started, the servo motor drives the whole screening drum to rotate through the transmission shaft, and small-particle quartz sand penetrates through the drum screen, enters the material collecting groove and is collected. At the moment, the servo motor controls the drum screen to stop rotating and maintain a corresponding angle, the first telescopic device drives the push plate to approach the socket until the plug is inserted into the wiring port, after a circuit of the electric telescopic device is switched on, the electric telescopic device drives the barrier plate to move backwards to the rear of the discharging port, then the first telescopic device is reset, and the plug retreats from the wiring port; and the servo motor drives the screening barrel to rotate again, and at the moment, the remaining materials in the screening barrel are gradually discharged into the material receiving groove through the discharging opening under the action of centrifugal force. Therefore, the large-particle quartz sand remaining in the drum screen can be conveniently and rapidly discharged.

Description

Technical Field

[0001] This application relates to the field of quartz sand processing technology, specifically to a grading drum screen for quartz sand. Background Technology

[0002] Quartz sand is quartz particles produced by crushing and processing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, and chemically stable silicate mineral. Quartz sand is an important industrial mineral raw material, a non-hazardous chemical, and is widely used in glass, casting, ceramics and fireproof materials, ferrosilicon smelting, metallurgical flux, metallurgy, construction, chemical industry, plastics, rubber, abrasives, filter media, and other industries.

[0003] During the production of quartz sand, it needs to be screened according to different intended uses. The screening process typically uses a drum screen, which rotates the quartz sand, allowing smaller particles to pass through the screen cylinder for collection, while larger particles are removed. In existing technologies, the final step in the quartz sand screening process—removing the larger particles from the drum screen—can be achieved in various ways, such as by using a spiral scraper or by tilting the drum screen, but all of these methods suffer from complex structures and low efficiency. Utility Model Content

[0004] In view of the above problems, this application provides a grading drum screen for quartz sand, which can conveniently and quickly discharge large particles of quartz sand retained in the drum screen.

[0005] According to one aspect of the embodiments of this application, a grading drum screen for quartz sand is provided. The grading drum screen for quartz sand includes a horizontally arranged screening cylinder, a receiving trough on the outer periphery of the screening cylinder, a horizontally arranged drive shaft inside the screening cylinder, the drive shaft being rotatably mounted on the top of the receiving trough via a rotating support, one end of the drive shaft being drively connected to a servo motor, the inner cavity of the screening cylinder including a screening chamber and a discharge chamber, a plurality of screen holes evenly opened on the side wall of the screening chamber, a discharge port opened on the side wall of the discharge chamber, and an annular baffle plate arranged inside the discharge chamber, the baffle plate being slidably fitted onto the receiving trough. The outer wall of the barrier plate extends to the inner wall of the screening cylinder on the drive shaft. A socket is provided at the end of the screening cylinder away from the servo motor. A wiring port is provided on the socket. An electric telescopic device is connected to the end of the barrier plate away from the servo motor. The electric telescopic device is electrically connected to the wiring port. A push plate corresponding to the socket is connected to the top of the receiving trough through a first telescopic device. A plug corresponding to the wiring port is provided on the side of the push plate near the socket. The plug is electrically connected to a power source.

[0006] In some embodiments, a feeding trough is provided at the screening cylinder, and the feeding trough is connected to the screening chamber.

[0007] In some embodiments, an arc-shaped partition is provided in the middle of the receiving trough, and a ball bearing is rotatably provided at the top end face of the arc-shaped partition. The ball bearing is in close contact with the outer wall of the screening cylinder. The arc-shaped partition divides the inner cavity of the receiving trough into a first chamber and a second chamber. The first chamber and the second chamber are respectively connected to a first discharge pipe and a second discharge pipe.

[0008] In some embodiments, a horizontally positioned positioning plate is connected to the bottom wall of the second chamber via a vertically positioned second telescopic device, and two positioning rods corresponding to the positioning plate are connected to one end of the screening cylinder near the push plate.

[0009] In some embodiments, a rotating cylinder is sleeved around the outer periphery of the positioning rod.

[0010] In some embodiments, the bottom of the receiving trough is provided with a plurality of support columns, which are connected to the ground by anchor bolts.

[0011] The beneficial effects of this application are as follows: During operation, the quartz sand to be screened can be fed into the drum screen. Due to the obstruction of the baffle plate, the quartz sand cannot enter the discharge chamber. After the servo motor is started, the servo motor drives the entire screening cylinder to rotate through the transmission shaft. After a period of time, small particles of quartz sand pass through the drum screen and enter the receiving trough and are collected. At this time, the servo motor controls the drum screen to stop rotating and maintain a corresponding angle. The first telescopic device drives the push plate close to the socket until the plug is inserted into the wiring port. After the circuit of the electric telescopic device is connected, the electric telescopic device drives the baffle plate to move backward to the rear of the discharge port. Then the first telescopic device resets, the plug exits the wiring port, and the servo motor drives the screening cylinder to rotate again. At this time, the remaining material in the screening cylinder will be gradually discharged into the receiving trough through the discharge port under the action of centrifugal force. Thus, this application can conveniently and quickly discharge large particles of quartz sand remaining in the drum screen.

[0012] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0013] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0014] Figure 1 A schematic diagram of the overall cross-sectional structure of a grading drum screen for quartz sand provided in an embodiment of this application;

[0015] Figure 2 This is a partial structural diagram of the end of the screening cylinder and its connection provided in an embodiment of this application.

[0016] The reference numerals in the detailed embodiments are as follows:

[0017] A grading drum screen for quartz sand includes: 100, screening cylinder 110, screening chamber 111, discharge chamber 112, discharge port 112a, baffle plate 113, socket 114, wiring port 114a, electric telescopic device 115, feeding trough 116, positioning rod 117, rotating drum 117a, receiving trough 120, arc-shaped baffle 121, ball bearing 121a, first chamber 122, second chamber 123, drive shaft 130, servo motor 131, first telescopic device 140, push plate 141, plug 142, second telescopic device 150, positioning plate 151, and support column 160. Detailed Implementation

[0018] The embodiments of the technical solution of this application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and the foregoing description of the accompanying drawings are intended to cover non-exclusive inclusion.

[0019] For details, please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall cross-sectional structure of a grading drum screen for quartz sand provided in an embodiment of this application. Figure 2This is a partial structural diagram of the end of the screening cylinder and its connection provided in an embodiment of this application. The grading drum screen 100 for quartz sand includes a horizontally arranged screening cylinder 110. Material is fed into the drum screen, and the screen rotates the material, allowing small particles to pass through and enter the receiving trough 120 below. Larger quartz sand particles are temporarily stored inside the drum screen. The receiving trough 120 is located on the outer periphery of the screening cylinder 110, used to collect and guide the quartz sand screened out. A drive shaft 130 is horizontally arranged inside the screening cylinder 110. The drive shaft 130 is rotatably mounted on the top of the receiving trough 120 via a rotating support. One end of the drive shaft 130 is connected to a servo motor 131. When the servo motor 131 is turned on, it drives the entire screening cylinder 110 to rotate via the drive shaft 130, thereby achieving the screening action. The inner cavity of the screening cylinder 110 includes a screening chamber 111 and a discharge chamber 112. Multiple screen holes are evenly distributed on the side wall of the screening chamber 111, and a discharge port 112a is provided on the side wall of the discharge chamber 112. An annular baffle plate 113 is installed inside the discharge chamber 112. The baffle plate 113 is slidably sleeved on the drive shaft 130, and its outer wall extends to the inner side wall of the screening cylinder 110. Due to the separation provided by the baffle plate 113, the raw material is entirely located inside the screening chamber 111 during the screening stage. When the screening cylinder 110 rotates, it normally screens out the quartz sand. After screening for a certain period, the baffle plate 113 can be controlled to move backward for discharge. A socket 114 is provided at the end of the screening cylinder 110 away from the servo motor 131. The socket 114 can be fixedly connected to the screening cylinder 110 and rotates together with the screening cylinder 110 during operation. The socket 114 is provided with a wiring port 114a. The end of the baffle plate 113 facing away from the servo motor 131 is connected to an electric telescopic device 115. When the electric telescopic device 115 is opened, it will drive the baffle plate 113 to move. The electric telescopic device 115 is electrically connected to the wiring port 114a. The top of the receiving trough 120 is connected to a push plate 141 corresponding to the socket 114 via a first telescopic device 140. The side of the push plate 141 near the socket 114 is provided with a plug 142 corresponding to the wiring port 114a. The plug 142 is electrically connected to a power source. After the push plate 141 is pushed by the first telescopic device 140, the plug 142 will be inserted into the wiring port 114a. At this time, the electric telescopic device 115 will be opened.

[0020] In this embodiment, the specific working process is as follows: the quartz sand to be screened is fed into the drum screen. Due to the obstruction of the baffle plate 113, the quartz sand cannot enter the discharge chamber 112. After the servo motor 131 is started, the servo motor 131 drives the entire screening cylinder 110 to rotate through the transmission shaft 130. At this time, the plug 142 and the wiring port 114a are disconnected, which does not affect the overall rotation of the drum screen. After a period of time, the screening of the quartz sand is basically completed, and the small particles of quartz sand pass through the drum screen and enter the receiving trough 120 and are collected. At this time, the servo motor 131 controls the drum screen to stop rotating and maintain the corresponding angle. The first telescopic device 140 drives the push plate 141 to approach the socket 114 until the plug 142 is inserted into the wiring port 114a. After the circuit of the electric telescopic device 115 is connected, the electric telescopic device 115 drives the baffle plate 113 to move behind the discharge port 112a. Then the first telescopic device 140 is reset, the plug 142 is withdrawn from the wiring port 114a, and the servo motor 131 drives the screening cylinder 110 to rotate again. At this time, the remaining material in the screening cylinder 110 will be gradually discharged into the receiving trough 120 through the discharge port 112a under the action of centrifugal force.

[0021] In some embodiments, a feeding trough 116 is provided at the screening cylinder 110, and the feeding trough 116 is connected to the screening chamber 111. In this embodiment, by providing the feeding trough 116, the screening cylinder 110 can be fed through the feeding trough 116. Naturally, in order to prevent material leakage from the feeding trough 116 during the operation of the drum screen, a sealing valve should be provided at the feeding trough 116.

[0022] In some embodiments, an arc-shaped partition 121 is provided in the middle of the receiving trough 120. A ball bearing 121a is rotatably disposed at the top end face of the arc-shaped partition 121, and the ball bearing 121a is in close contact with the outer wall of the screening cylinder 110. The arc-shaped partition 121 divides the inner cavity of the receiving trough 120 into a first chamber 122 and a second chamber 123. The first chamber 122 and the second chamber 123 are respectively connected to a first discharge pipe and a second discharge pipe. In this embodiment, through the above arrangement, on the one hand, the arc-shaped partition 121 can provide a certain degree of support for the drum screen; on the other hand, the arc-shaped partition 121 divides the interior of the receiving trough 120 into the first chamber 122 and the second chamber 123, thereby ensuring that the material discharged during the two discharge processes of the drum screen enters the first chamber 122 and the second chamber 123 respectively, avoiding secondary mixing of large and small particles of quartz sand.

[0023] In some embodiments, a horizontally positioned positioning plate 151 is connected to the bottom wall of the second chamber 123 via a vertically positioned second telescopic device 150. Two positioning rods 117 corresponding to the positioning plate 151 are connected to one end of the screening cylinder 110 near the push plate 141. In this embodiment, the above-mentioned arrangement is used to assist positioning, applicable when the servo motor 131 malfunctions, the drum screen does not fully reset, and the plug 142 at the push plate 141 cannot be accurately inserted into the wiring port 114a. When the servo motor 131 stops the drum screen, the second telescopic device 150 moves the positioning plate 151 upward. During the upward movement, the positioning plate 151 will contact the positioning rod 117. If the position of the drum screen is offset, the height between the two positioning rods 117 will be incorrect. The positioning plate 151 will first contact the lower positioning rod 117 and continue to move upward. During this process, the positioning plate 151 drives the drum screen to rotate within a small range through the positioning rod 117 until the positioning plate 151 contacts the upper second positioning rod 117 and stops moving upward. At this time, the two positioning rods 117 are in a level state, and the plug 142 and the wiring port 114a at the push plate 141 will be on the same straight line.

[0024] In some embodiments, a rotating cylinder 117a is sleeved around the outer periphery of the positioning rod 117. In this embodiment, the above-described arrangement effectively reduces the friction between the positioning rod 117 and the positioning plate 151, preventing wear.

[0025] In some embodiments, the bottom of the receiving trough 120 is provided with a plurality of support columns 160, which are connected to the ground by anchor bolts. In this embodiment, the above-described arrangement enables the entire device to be stably fixed to the ground.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although the foregoing embodiments have provided a detailed description of this application, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A grading drum screen for quartz sand, characterized in that, The device includes a horizontally arranged screening cylinder, a receiving trough on the outer periphery of the screening cylinder, a horizontally arranged drive shaft inside the screening cylinder, the drive shaft being rotatably mounted on the top of the receiving trough via a rotating support, and a servo motor being connected to one end of the drive shaft. The inner cavity of the screening cylinder includes a screening cavity and a discharge cavity. Multiple screen holes are evenly opened on the side wall of the screening cavity, and a discharge port is opened on the side wall of the discharge cavity. An annular baffle plate is provided in the discharge cavity. The baffle plate is slidably sleeved on the drive shaft, and the outer wall of the baffle plate extends to the inner side wall of the screening cylinder. The screening cylinder has a socket at the end opposite to the servo motor, and a wiring port is provided on the socket. The barrier plate is connected to an electric telescopic device at the end opposite to the servo motor, and the electric telescopic device is electrically connected to the wiring port. The top of the receiving trough is connected to a push plate corresponding to the socket through a first telescopic device. The push plate has a plug corresponding to the wiring port on the side near the socket, and the plug is electrically connected to a power source.

2. The grading drum screen for quartz sand according to claim 1, characterized in that, A feeding trough is provided at the screening cylinder, and the feeding trough is connected to the screening chamber.

3. The grading drum screen for quartz sand according to claim 1, characterized in that, An arc-shaped partition is provided in the middle of the receiving trough. A ball bearing is rotatably provided at the top end face of the arc-shaped partition. The ball bearing is in close contact with the outer wall of the screening cylinder. The arc-shaped partition divides the inner cavity of the receiving trough into a first chamber and a second chamber. The first chamber and the second chamber are respectively connected to a first discharge pipe and a second discharge pipe.

4. The grading drum screen for quartz sand according to claim 3, characterized in that, A horizontally positioned positioning plate is connected to the bottom wall of the second chamber via a vertically positioned second telescopic device. Two positioning rods corresponding to the positioning plate are connected to the end of the screening cylinder near the push plate.

5. The grading drum screen for quartz sand according to claim 4, characterized in that, A rotating cylinder is fitted around the outer periphery of the positioning rod.

6. The grading drum screen for quartz sand according to claim 1, characterized in that, The bottom of the receiving trough is provided with multiple support columns, which are connected to the ground by anchor bolts.

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