Air volume adjusting device for a powder classifier

Abstract

The utility model belongs to the technical field of powder concentrator, especially involve a powder concentrator air volume regulating device, including ventilation pipe one, ventilation pipe two and flange, ventilation pipe two installs in ventilation pipe one right -hand member, flange fixedly connected in ventilation pipe one left -hand member and ventilation pipe two right -hand member, ventilation pipe one right -hand member is provided with air volume regulating device, air volume regulating device includes motor, fixed plate, guide disc one, gear ring, baffle, connecting shaft, gear, connecting frame and guide disc two. The powder concentrator air volume regulating device, through motor drive gear and gear ring rotation, to drive guide disc one rotation and connecting shaft removal, make baffle along guide disc two inside guide rail mutually close or far away to control air port size, high accuracy, sealing ring can improve air tightness, reduce wind power loss, through filter plate can carry out filtration to dust impurity in air and prevent in the powder concentration raw material pollution, rotation limit rod makes it card into the inside of spacing frame and carries out spacing to filter plate.

Description

Technical Field

[0001] This utility model relates to the field of air classifier technology, specifically to an air volume regulating device for an air classifier. Background Technology

[0002] Proppants are commonly used in hydraulic fracturing operations during oil and gas extraction. They increase oil and gas production by keeping rock fractures open. Air classifiers play a crucial role in the production and processing of proppant. They precisely classify the particle size of proppant, ensuring the product meets specific particle size distribution requirements. Air classifiers remove substandard particles, improving the overall quality of the proppant. This includes removing excessively fine or coarse particles, as well as defective or unevenly distributed particles.

[0003] The air volume of the air classifier directly affects its classification efficiency and product quality. By adjusting the air volume, the particle size distribution of the proppant can be controlled. Currently used air classifiers have difficulty controlling the air volume, and the air volume of the air classifier is difficult to adjust steplessly, resulting in a small controllable range of the particle size of the air classifier.

[0004] For example, Chinese patent CN222469805U discloses an airflow regulating device for a classifier, including a housing and an regulating component. The upper opening of the housing is sealed by a transparent cover plate, and both ends of the housing are connected to connecting pipes. The regulating component includes a fixed cylinder, a rotating cylinder, and a screw. The fixed cylinder is a cylindrical body with an outer circle and an inner square. The two ends of the fixed cylinder are respectively fixedly connected to the upper and lower inner surfaces of the housing. A sliding hole is provided on the peripheral wall of the fixed cylinder. The rotating cylinder is circumferentially slidably fitted around the fixed cylinder. An inclined sliding groove is provided on the inner wall of the rotating cylinder. A baffle plate is connected to the front and rear ends of the peripheral wall of the rotating cylinder. A movable block is provided inside the fixed cylinder. A drive rod is provided on the side of the movable block. The free end of the drive rod passes through the sliding hole and extends into the sliding groove. The screw is threadedly connected to the movable block. The lower end of the screw is rotatably connected to the bottom plate of the housing, and the upper end passes through the cover plate. This utility model solves the problem that the airflow of the classifier is difficult to adjust steplessly when classifying proppant powder.

[0005] However, relying on a single baffle to control the air intake has low precision and cannot meet high-precision requirements. Utility Model Content

[0006] The purpose of this invention is to provide an air volume regulating device for a classifier, so as to solve the problem mentioned in the background art that the accuracy of controlling the air volume by relying on a baffle is low and cannot meet the high precision requirements.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an air volume regulating device for a classifier, comprising a ventilation pipe one, a ventilation pipe two, and a flange, wherein the ventilation pipe two is installed at the right end of the ventilation pipe one, and the flange is fixedly connected to the left end of the ventilation pipe one and the right end of the ventilation pipe two, and an air volume regulating device is provided at the right end of the ventilation pipe one;

[0008] The airflow regulating device includes a motor, a fixed plate, a first guide plate, a gear ring, a baffle plate, a connecting shaft, a gear, a connecting frame, and a second guide plate. The motor is mounted on one side of the fixed plate, which is fixedly connected to the outer surface of the first ventilation duct. The first guide plate is mounted on one side of the second guide plate and rotatably connected to the outer surface of the right end of the first ventilation duct. The gear ring is fixedly connected to the outer surface of the first guide plate. The baffle plate is mounted on the right side of the first guide plate. The connecting shaft is fixedly connected to the left side of the baffle plate and slidably connected to the internal slide rail of the first guide plate. The gear is connected to the output end of the motor. The connecting frame is fixedly connected to the left side of the second guide plate and its other end is fixedly connected to the outer surface of the first ventilation duct. The second guide plate is rotatably connected to the outer surface of the left end of the second ventilation duct. The motor drives the gear and gear ring to rotate, thereby driving the first guide plate to rotate and the connecting shaft to move. This causes the baffle plates to move closer or further apart along the internal guide rail of the second guide plate, controlling the size of the air outlet with high precision.

[0009] Preferably, the two ends of the connecting shaft are fixedly connected to limit blocks and the length of the connecting shaft is equal to the sum of the thicknesses of the first guide plate, the wind baffle, and the second guide plate, which can make the connection of the first guide plate, the wind baffle, and the second guide plate more stable.

[0010] Preferably, a threaded hole is provided on one side of the fixing plate, and the motor and the fixing plate are connected by bolts through the threaded hole, which facilitates the maintenance and replacement of the motor and improves the convenience of the device.

[0011] Preferably, the outer surfaces of ventilation pipe one and ventilation pipe two are fixedly connected with sealing grooves, and mounting plates are fixedly connected to the front and rear sides of the sealing grooves. The two ventilation pipes are connected by fixing the two mounting plates with bolts, making loading and unloading more convenient.

[0012] Preferably, the connecting surfaces of the two sealing grooves are provided with grooves, and a sealing ring is fixedly connected to the grooves, which can improve airtightness and reduce wind loss.

[0013] Preferably, the ventilation duct is divided into two sections and a filter box is fixedly connected between the two sections. The filter box is in communication with the interior of the ventilation duct. A sliding groove is fixedly connected inside the filter box. A filter plate is slidably connected inside the filter box through the sliding groove. A connecting plate is fixedly connected above the filter plate. The filter plate can filter dust and impurities in the air to prevent contamination of raw materials during powder selection.

[0014] Preferably, a limiting frame is fixedly connected above the filter box, and a limiting rod is rotatably connected above the connecting plate. The limiting rod matches the inside of the limiting frame. By rotating the limiting rod, it is locked into the inside of the limiting frame to limit the filter plate and prevent the filter plate from falling out of the filter box.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The air volume regulating device of this air classifier uses a motor to drive the gear and gear ring to rotate, which in turn drives the guide plate one to rotate and the connecting shaft to move. This causes the baffle plates to move closer or further apart along the internal guide rail of the guide plate two to control the size of the air outlet. The device is highly accurate. The two ventilation pipes are connected by fixing the two mounting plates with bolts, which makes loading and unloading more convenient. The sealing ring can improve air tightness and reduce wind loss.

[0017] 2. The air volume regulating device of this air classifier can filter dust and impurities in the air through the filter plate to prevent contamination of raw materials during air classification. Rotating the limit rod will cause it to lock into the limit frame to limit the filter plate and prevent the filter plate from falling out of the filter box. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the air volume adjustment structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the ventilation pipe connection structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the filter structure of this utility model.

[0022] In the diagram: 1. Ventilation duct one; 101. Ventilation duct two; 102. Flange; 2. Sealing groove; 201. Mounting plate; 202. Sealing ring; 3. Filter box; 301. Limiting bracket; 302. Connecting plate; 303. Filter plate; 304. Limiting rod; 4. Motor; 401. Fixing plate; 402. Guide plate one; 403. Gear ring; 404. Wind baffle; 405. Connecting shaft; 406. Gear; 407. Connecting bracket; 408. Guide plate two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Addressing the issue that relying on a single baffle to control airflow has low accuracy and cannot meet high-precision requirements, this example provides an airflow regulating device for a classifier. Please refer to [link / reference]. Figures 1-4 The embodiment provides an airflow regulating device for a classifier, which can precisely control the size of the air outlet by moving the baffles closer or further apart along the internal guide rail of the guide disc two. This airflow regulating device for a classifier includes a first ventilation pipe 1, a second ventilation pipe 101, and a flange 102. The second ventilation pipe 101 is installed at the right end of the first ventilation pipe 1, and the flange 102 is fixedly connected to the left end of the first ventilation pipe 1 and the right end of the second ventilation pipe 101. The airflow regulating device is provided at the right end of the first ventilation pipe 1.

[0025] The airflow regulating device includes a motor 4, a fixed plate 401, a guide plate 402, a gear ring 403, a baffle 404, a connecting shaft 405, a gear 406, a connecting frame 407, and a second guide plate 408. The motor 4 is mounted on one side of the fixed plate 401, which is fixedly connected to the outer surface of the ventilation duct 1. The first guide plate 402 is mounted on one side of the second guide plate 408 and rotatably connected to the outer surface of the right end of the ventilation duct 1. The gear ring 403 is fixedly connected to the outer surface of the first guide plate 402. The baffle 404 is mounted on the right side of the first guide plate 402. The connecting shaft 405 is fixedly connected to the left side of the baffle 404 and slidably connected to the internal slide rail of the first guide plate 402. The gear 406 is connected to the output end of the motor 4. The connecting bracket 407 is fixedly connected to the left side of the guide plate 408 and the other end is fixedly connected to the outer surface of the ventilation pipe 1. The guide plate 408 is rotatably connected to the outer surface of the left end of the ventilation pipe 101. The connecting shaft 405 is fixedly connected to the two ends of the limiting block and the length of the connecting shaft 405 is equal to the sum of the thicknesses of the guide plate 402, the baffle plate 404 and the guide plate 408. The fixing plate 401 has a threaded hole on one side. The motor 4 is connected to the fixing plate 401 by bolt thread through the threaded hole. The outer surface of the ventilation pipe 1 and the ventilation pipe 2 is fixedly connected to the sealing groove 2. The front and rear sides of the sealing groove 2 are fixedly connected to the mounting plate 201. The connecting surface of the two sealing grooves 2 has a groove and a sealing ring 202 is fixedly connected to the groove.

[0026] In this embodiment, the motor 4 drives the gear 406 and the gear ring 403 to rotate, thereby driving the guide plate 402 to rotate and the connecting shaft 405 to move. This causes the wind deflector 404 to move closer or further away from each other along the internal guide rail of the guide plate 408, thus controlling the size of the air vent with high precision. The two ventilation pipes are connected by fixing the two mounting plates 201 with bolts, making installation and removal more convenient. The sealing ring 202 can improve air tightness and reduce wind loss.

[0027] Example 2: Based on Example 1, please refer to... Figures 1-4It can filter dust and impurities in the air to prevent contamination of raw materials during powder selection. The ventilation duct 1 is divided into two sections and a filter box 3 is fixedly connected between the two sections. The filter box 3 is connected to the inside of the ventilation duct 1. A sliding groove is fixedly connected inside the filter box 3. A filter plate 303 is slidably connected inside the filter box 3 through the sliding groove. A connecting plate 302 is fixedly connected above the filter plate 303. A limit frame 301 is fixedly connected above the filter box 3. A limit rod 304 is rotatably connected above the connecting plate 302. The limit rod 304 matches the inside of the limit frame 301.

[0028] In this embodiment, the filter plate 303 can filter dust and impurities in the air to prevent contamination of raw materials during powder selection. The limit rod 304 is rotated to lock into the limit frame 301 to limit the filter plate 303 and prevent the filter plate 303 from falling out of the filter box 3.

[0029] Working principle: The motor 4 drives the gear 406 and gear ring 403 to rotate, which in turn drives the guide plate 402 to rotate and the connecting shaft 405 to move. This causes the baffle plate 404 to move closer or further away from each other along the internal guide rail of the guide plate 408, controlling the size of the air outlet with high precision. The two ventilation pipes are connected by fixing the two mounting plates 201 with bolts, making installation and removal more convenient. The sealing ring 202 can improve airtightness and reduce wind loss. The filter plate 303 can filter dust and impurities in the air to prevent contamination of raw materials during powder selection. Rotating the limit rod 304 makes it lock into the limit frame 301 to limit the filter plate 303 and prevent the filter plate 303 from falling out of the filter box 3.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An airflow regulating device for an air classifier, comprising a first ventilation pipe (1), a second ventilation pipe (101), and a flange (102), characterized in that: The second ventilation pipe (101) is installed at the right end of the first ventilation pipe (1), the flange (102) is fixedly connected to the left end of the first ventilation pipe (1) and the right end of the second ventilation pipe (101), and the right end of the first ventilation pipe (1) is provided with an air volume regulating device. The airflow regulating device includes a motor (4), a fixing plate (401), a guide plate one (402), a gear ring (403), a baffle plate (404), a connecting shaft (405), a gear (406), a connecting frame (407), and a guide plate two (408). The motor (4) is installed on one side of the fixing plate (401), and the fixing plate (401) is fixedly connected to the outer surface of the ventilation pipe one (1). The guide plate one (402) is installed on one side of the guide plate two (408) and rotatably connected to the outer surface of the right end of the ventilation pipe one (1). The gear ring (403) The wind deflector (404) is fixedly connected to the outer surface of the guide plate (402), the wind deflector (404) is installed on the right side of the guide plate (402), the connecting shaft (405) is fixedly connected to the left side of the wind deflector (404) and slidably connected to the inner slide rail of the guide plate (402), the gear (406) is connected to the output end of the motor (4), the connecting bracket (407) is fixedly connected to the left side of the guide plate (408) and the other end is fixedly connected to the outer surface of the ventilation pipe (1), and the guide plate (408) is rotatably connected to the outer surface of the left end of the ventilation pipe (101).

2. The air volume regulating device for a classifier according to claim 1, characterized in that: The connecting shaft (405) is fixedly connected to both ends of the limiting block, and the length of the connecting shaft (405) is equal to the sum of the thicknesses of the first guide plate (402), the wind deflector (404), and the second guide plate (408).

3. The air volume regulating device for a classifier according to claim 1, characterized in that: The fixing plate (401) has a threaded hole on one side, and the motor (4) is connected to the fixing plate (401) by bolt thread through the threaded hole.

4. The air volume regulating device for a classifier according to claim 1, characterized in that: The outer surfaces of ventilation pipe one (1) and ventilation pipe two (101) are fixedly connected with sealing grooves (2), and mounting plates (201) are fixedly connected to the front and rear sides of the sealing grooves (2).

5. The air volume regulating device for a classifier according to claim 4, characterized in that: The two sealing grooves (2) have grooves on their connecting surfaces, and a sealing ring (202) is fixedly connected to the groove.

6. The air volume regulating device for a classifier according to claim 1, characterized in that: The ventilation duct (1) is divided into two sections and a filter box (3) is fixedly connected between the two sections. The filter box (3) is connected to the interior of the ventilation duct (1). A sliding groove is fixedly connected inside the filter box (3). A filter plate (303) is slidably connected inside the filter box (3) through the sliding groove. A connecting plate (302) is fixedly connected above the filter plate (303).

7. The air volume regulating device for a classifier according to claim 6, characterized in that: A limiting frame (301) is fixedly connected above the filter box (3), and a limiting rod (304) is rotatably connected above the connecting plate (302). The limiting rod (304) matches the inside of the limiting frame (301).

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