Dust collecting device for grinding processing of barite ore powder

Abstract

The utility model discloses a dust collecting device is ground with barite ore powder, including dust collecting barrel, feed joint, static eliminator, hopper, bucket cover, support cylinder, suction joint, rotary filter core, connecting component, transmission assembly and scraping assembly, feed joint is located one side of dust collecting barrel, static eliminator is located one side of feed joint, the top of dust collecting barrel is connected with bucket cover, and the bottom is connected with hopper, and support cylinder is located the top middle part of bucket cover, and rotary filter core is located in dust collecting barrel, and connecting component is located hopper bottom, and transmission assembly is located inside support cylinder and is connected with rotary filter core, and scraping assembly is located rotary filter core just below, the utility model discloses through static eliminator of feed joint place instantaneously neutralize barite dust static electricity, reduce dust and filter core and the adhesion of bucket wall, and rotary filter core adsorbs dust and carries out fling powder through transmission assembly rotation, and cooperate scraping assembly on -line mechanical dust cleaning, and the overall can effectively improve raw material recovery rate, and improve the working environment.

Description

Technical Field

[0001] This utility model relates to the field of barite processing technology, specifically to a dust collection device for grinding barite ore powder. Background Technology

[0002] During the grinding and processing of barite ore powder, the high-speed rotating grinding rollers violently collide with the ore, generating a large amount of fine barite powder. Although barite has a relatively high specific gravity, and the particles easily settle to the bottom in the airflow, they still remain suspended for a long time under the action of the high kinetic energy released instantaneously in the grinding zone and diffuse to the outside with the airflow. This not only wastes raw materials but also pollutes the working environment, is detrimental to the health of operators, and poses a safety hazard of dust explosion. Therefore, traditional dust collection devices generally adopt bag or conventional filter cartridge structures, using negative pressure suction to guide the dust-laden airflow into the filter chamber, using the filter media to intercept dust and purify the exhaust gas, achieving the dual goals of dust recovery and environmental purification. However, due to the small size and high density of barite ore powder particles, they are extremely prone to carrying static electricity under the action of airflow; traditional devices lack targeted static electricity neutralization methods, causing a large amount of charged dust to adhere to the surface of the filter cartridge and the inner wall of the housing. As the operating time increases, the dust layer continues to thicken, the effective filtration area decreases rapidly, the system resistance increases significantly, and the filtration efficiency decreases accordingly.

[0003] Furthermore, existing equipment generally adopts a fixed filter element structure and relies on manual or simple pulse jet cleaning methods for dust removal. This has limited effectiveness in cleaning barite dust with strong adhesion and high density, making it easy for "bridges" or caking to form at the root of the filter element, leading to filter element blockage, reduced effective collection volume and filtration efficiency, and the need for frequent shutdowns to clean accumulated dust, which hinders continuous production. Utility Model Content

[0004] The purpose of this invention is to provide a dust collection device for barite powder grinding and processing that neutralizes static electricity online, rotates continuously for self-cleaning, and requires no downtime. This device aims to solve the technical problems of traditional equipment, such as filter blockage, sharp drop in filtration efficiency, and frequent downtime caused by insufficient static adsorption and cleaning of fixed filter elements, which hinder continuous production.

[0005] To solve the above technical problems, the solution adopted by this utility model is as follows: A dust collection device for grinding and processing barite ore powder includes a dust collection bucket, a feeding connector, an electrostatic eliminator, a discharge hopper, a bucket cover, a support cylinder, a suction connector, a rotating filter element, a connecting assembly, a transmission assembly, and a scraping assembly. The feed connector is fixedly installed on one side of the dust collection bin; the electrostatic eliminator is fixedly installed on one side of the feed connector; the top of the dust collection bin is connected to the bin cover, and the bottom is fixedly connected to the discharge hopper; the support cylinder is fixedly installed in the middle of the top of the bin cover; the rotating filter element is located inside the dust collection bin; the connecting assembly is fixedly installed at the bottom of the discharge hopper; the transmission assembly is installed inside the support cylinder and connected to the rotating filter element; the scraping assembly is located directly below the rotating filter element. The feed connector is externally connected to the outlet of the grinding equipment, the suction connector is externally connected to a vacuum suction system, the connecting assembly is externally connected to a collection device, and the whole system is externally connected to a control system for control.

[0006] Simultaneously, the grinding equipment and vacuum suction system are started. After the vacuum suction system is started, a negative pressure airflow is formed in the dust collection bin through the suction connector. The barite ore powder produced by the grinding equipment is sucked into the dust collection bin through the feed connector. When the dust in the barite ore powder passes through the feed connector, the static charge is eliminated by the electrostatic eliminator. The dust particles with neutralized static charge have reduced surface adhesion and enter the interior of the dust collection bin. Larger particles fall into the discharge hopper due to gravity and are collected by the collection device. Fine dust rising with the airflow is filtered and adsorbed by the rotating filter element under the bin cover. The rotating filter element rotates at high speed through the transmission component in the support cylinder, throwing the adsorbed dust towards the inner wall of the dust collection bin. It is then scraped off into the discharge hopper by the scraping component for collection.

[0007] Furthermore, the scraping assembly includes a drive motor, a drive shaft, a connecting rod, and a scraper. The drive motor is fixedly mounted on the top of the support cylinder. The drive shaft is located inside the dust collection bin, with its top end passing through the bin cover and the support cylinder and fixedly connected to the output shaft of the drive motor. The connecting rod is provided in several sets, with two rods per set, one end of which is fixedly connected to the drive shaft, and the other end of which is fixedly connected to the scraper. A rubber plate is provided on the contact side of the scraper with the dust collection bin. The drive motor drives the drive shaft to rotate, which in turn drives the scraper on the connecting rod to rotate. The scraper makes a tight, sealed contact with the inner wall of the dust collection bin through the rubber plate, scraping away the dust adhering to the inner wall of the dust collection bin. The rubber plate ensures that the scraper can scrape off all the dust while buffering the scraping impact, reducing wear on the bin wall, lowering maintenance costs, and thus extending the service life of the equipment.

[0008] Furthermore, the transmission assembly includes a rotating motor, a rotating bevel gear, a transmission bevel gear, a transmission cylinder, a filter element support, and a sealed bearing; the rotating motor is fixedly installed on one side of the support cylinder, and its output end extends into the support cylinder and is fixedly connected to the rotating bevel gear; the sealed bearing is fixedly installed in the middle of the bottom end of the bucket cover; the transmission cylinder is sleeved on the outside of the drive shaft, with its upper end fixedly connected to the transmission bevel gear, and its lower end extending into the sealed bearing and fixedly connected to the filter element support; the rotating bevel gear and the transmission bevel gear mesh perpendicularly; the bottom end of the filter element support is fixedly connected to the rotating filter element.

[0009] The high-speed rotation of the motor drives the rotating bevel gear to rotate, which in turn drives the transmission bevel gear meshing with the rotating bevel gear to rotate. This causes the transmission cylinder to rotate along with the transmission bevel gear, which in turn drives the filter element support at the bottom of the transmission cylinder to rotate at high speed. The transmission filter element at the bottom of the filter element support also rotates at high speed, throwing dust onto the inner wall of the dust collection bin. The drive shaft and the transmission cylinder are coaxially mounted and do not interfere with each other. The transmission cylinder is responsible for driving the rotating filter element to rotate and throwing the dust on the rotating filter element onto the inner wall of the dust collection bin. The drive shaft is responsible for driving the scraper to rotate and scrape off the dust on the inner wall of the dust collection bin. The sealed bearing forms a dynamic seal between the rotating filter element and the fixed bin cover. This not only facilitates the rotation of the rotating filter element by the filter element support to throw off the attached dust, but also prevents dust from leaking out from the connection of the transmission cylinder.

[0010] Furthermore, the connecting component is an assembly plate; the assembly plate is fixedly installed at the bottom end of the hopper and has several assembly holes. The assembly plate provides multi-point adjustable discharge interfaces through the assembly holes, facilitating connection with different downstream equipment, improving the versatility of the device, and enabling quick disassembly and installation.

[0011] Furthermore, the dust collection bin and the hopper are equipped with smooth plates inside. The smooth plates are made of polished metal or coated stainless steel and are installed on the inner wall of the dust collection bin and the inner conical surface of the hopper, forming a continuous, non-porous mirror layer. When the dust-laden airflow and the dust thrown onto the inner wall by the rotating filter element come into contact with the smooth plates, the low coefficient of friction between the dust and the wall surface causes the dust to slide down the smooth plates quickly and be discharged smoothly through the hopper, thereby inhibiting dust adhesion, bridging and accumulation.

[0012] The working principle of this utility model is as follows: After connecting the feed inlet to the outlet of the grinding equipment, the suction inlet to the vacuum suction system, and the assembly plate and assembly hole of the connecting components to the external receiving and collecting device, simultaneously start the grinding equipment and the vacuum suction system. Once the vacuum suction system is started, a negative pressure airflow is created inside the dust collection bin through the suction inlet, drawing the barite powder produced by the grinding equipment into the dust collection bin through the feed inlet. As the dust in the barite powder passes through the feed inlet, it undergoes electrostatic discharge by an electrostatic eliminator. The neutralized dust particles, with reduced surface adhesion, enter the interior of the dust collection bin. Larger particles fall into the hopper due to gravity and are collected by the collecting device. Fine dust particles rising with the airflow are filtered and adsorbed by the rotating filter element under the bin lid. The high-speed rotation of the rotating motor drives the rotating bevel gear, which in turn drives the rotating... The rotating bevel gears of the transmission cause the transmission cylinder to rotate along with them, which in turn drives the filter element support at the bottom of the transmission cylinder to rotate at high speed. The transmission filter element at the bottom of the filter element support also rotates at high speed, throwing dust onto the inner wall of the dust collection bin. The dust that falls onto the inner wall comes into contact with the smooth plate and slides down the smooth plate quickly, and is then discharged smoothly through the hopper. The dust adhering to the smooth plate is driven by the drive motor to rotate the drive shaft, which in turn drives the scraper on the connecting rod to rotate. The scraper makes a tight seal with the inner wall of the dust collection bin through the rubber plate, scraping the dust adhering to the inner wall of the dust collection bin into the hopper. It then slides down the smooth plate quickly and is discharged from the device through the hopper.

[0013] The beneficial effects of this utility model are as follows: 1. This utility model uses an electrostatic eliminator at the feed inlet to instantly neutralize the static electricity of barite dust, reducing the adhesion between dust and the filter element and barrel wall. The transmission component drives the filter element to rotate at high speed, generating centrifugal force to throw the adsorbed micro powder toward the barrel wall. Combined with the scraping component for online mechanical dust removal, it prevents caking and bridging. Overall, it can effectively improve the raw material recovery rate, improve the working environment, and eliminate the risk of dust explosion.

[0014] 2. This utility model uses a rotating motor to drive the filter element support, which in turn drives the rotating filter element to rotate at high speed, generating centrifugal force to throw dust onto the inner wall of the dust collection bin. The drive motor drives the scraper and rubber plate to perform online mechanical cleaning of the bin wall. Combined with the smooth sliding plate on the inner wall of the dust collection bin and the discharge hopper, the friction coefficient is reduced to ensure smooth dust discharge. This can effectively avoid dust accumulation and bridging, effectively extend the service life of the equipment, improve the raw material recovery rate, improve the working environment, and ensure the continuous operation of the production line. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a frontal cross-sectional view of the present invention. Figure 3 This is a schematic diagram of the bucket lid structure of this utility model; Figure 4 This is a schematic diagram of the dust collection bin structure of this utility model.

[0016] In the diagram: 101, dust collection bin; 102, feed connector; 103, static eliminator; 104, discharge hopper; 105, smooth plate; 106, assembly tray; 107, assembly hole; 108, bin lid; 109, support cylinder; 110, suction connector; 111, rotating motor; 112, rotating bevel gear; 113, transmission bevel gear; 114, transmission cylinder; 115, filter element bracket; 116, sealed bearing; 117, rotating filter element; 118, drive motor; 119, drive shaft; 120, connecting rod; 121, scraper; 122, rubber plate. Detailed Implementation

[0017] 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.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0019] The dust collection device for grinding and processing barite ore powder according to this utility model will be further described in detail below with reference to the accompanying drawings: Example

[0020] A dust collection device for grinding barite powder includes a dust collection bin 101, a feed inlet 102, an electrostatic eliminator 103, a discharge hopper 104, a bin cover 108, a support cylinder 109, a suction inlet 110, a rotating filter element 117, a connecting assembly, a transmission assembly, and a scraping assembly. The feed inlet 102 is fixedly installed on one side of the dust collection bin 101. The electrostatic eliminator 103 is fixedly installed on one side of the feed inlet 102. The top end of the dust collection bin 101 is connected to the bin cover 108, and the bottom end is fixedly connected to the discharge hopper 104. The support cylinder 109 is fixedly installed at the top center of the bin cover 108. The rotating filter element 117 is located inside the dust collection bin 101. The connecting assembly is fixedly installed at the bottom end of the discharge hopper 104. The transmission assembly is installed inside the support cylinder 109 and connected to the rotating filter element 117. The scraping assembly is located directly below the rotating filter element 117.

[0021] The working principle of this embodiment is as follows: Simultaneously, the grinding equipment connected to the feed connector 102 and the vacuum suction system connected to the suction connector 110 are started. After the vacuum suction system is started, a negative pressure airflow is formed in the dust collection bin 101 through the suction connector, and the barite ore powder produced by the grinding equipment is sucked into the dust collection bin 101 through the feed connector 102. When the dust in the barite ore powder passes through the feed connector 102, the static charge is eliminated by the electrostatic eliminator 103. The dust particles with neutralized static charge have reduced surface adhesion and enter the interior of the dust collection bin 101. The larger particle size ore powder falls into the feed hopper 104 due to gravity and is collected by the collection device installed at the bottom of the feed hopper 104 through the connecting component. The fine dust rising with the airflow is collected by the rotating filter element 117 under the bin cover 108. The rotating filter element 107 is rotated at a high speed by the transmission component in the support cylinder 109, and the adsorbed dust is thrown towards the inner wall of the dust collection bin 101 and scraped off into the feed hopper 104 by the scraping component for collection. Example

[0022] The difference from Embodiment 1 is that the scraping assembly includes a drive motor 118, a drive shaft 119, a connecting rod 120, and a scraper 121; the drive motor 118 is fixedly installed at the top of the support cylinder 109; the drive shaft 119 is located inside the dust collection bin 101, and its top end passes through the bin cover 108 and the support cylinder 109 and is fixedly connected to the output shaft of the drive motor 118; the connecting rod 120 is provided in several groups, two in each group, with one end fixedly connected to the drive shaft 119 and the other end fixedly connected to the scraper 121; a rubber plate 122 is provided on the contact side of the scraper 121 with the dust collection bin 101; the transmission assembly includes a rotating motor 111 and a rotating bevel gear 121. 12. Transmission bevel gear 113, transmission cylinder 114, filter element support 115, and sealing bearing 116; the rotating motor 111 is fixedly installed on one side of the support cylinder 109, and its output end extends into the support cylinder 109 and is fixedly connected to the rotating bevel gear 112; the sealing bearing 116 is fixedly installed in the middle of the bottom end of the bucket cover 108; the transmission cylinder 114 is sleeved on the outside of the drive shaft 119, its upper end is fixedly connected to the transmission bevel gear 113, and its lower end extends into the sealing bearing 116 and is fixedly connected to the filter element support 115; the rotating bevel gear 112 and the transmission bevel gear 113 mesh perpendicularly; the bottom end of the filter element support 115 is fixedly connected to the rotating filter element 117.

[0023] The high-speed rotation of the rotating motor 111 drives the rotating bevel gear 112 to rotate, which in turn drives the transmission bevel gear 113 that meshes with the rotating bevel gear 112 to rotate. This causes the transmission cylinder 114 to rotate along with the transmission bevel gear 113, which in turn drives the filter element support 115 at the bottom of the transmission cylinder 114 to rotate at high speed. The transmission filter element 117 at the bottom of the filter element support 115 also rotates at high speed, throwing the dust onto the inner wall of the dust collection bin 101. The drive motor 118 drives the drive shaft 119 to rotate, which in turn drives the scraper 121 on the connecting rod 120 to rotate. The scraper 121 is in close and sealed contact with the inner wall of the dust collection bin 101 through the rubber plate 122, and scrapes off the dust adhering to the inner wall of the dust collection bin 101.

[0024] The working principle of this embodiment is the same as that of Embodiment 1. Example

[0025] The difference from Embodiment 2 is that the connecting component is an assembly plate 106; the assembly plate 106 is fixedly installed at the bottom end of the hopper 104 and has several assembly holes 107; the dust collection bin 101 and the hopper 104 are provided with a smooth plate 105 inside. The smooth plate 105 is made of coated stainless steel and is installed on the inner wall of the dust collection bin 101 and the inner conical surface of the hopper 104 to form a continuous, non-porous mirror layer. When the dust-laden airflow and the dust thrown onto the inner wall of the dust collection bin 101 by the rotating filter element 117 come into contact with the smooth plate 105, the friction coefficient between the dust and the wall surface can be effectively reduced, so that the dust slides down the smooth plate 105 quickly, is smoothly discharged through the hopper 104, and enters the collection device connected by the assembly plate 106 and the assembly holes 107.

[0026] The working principle of this embodiment is the same as that of embodiment 2.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust collection device for grinding and processing barite ore powder, characterized in that: It includes a dust collection bin (101), a feed inlet (102), an electrostatic eliminator (103), a discharge hopper (104), a bin lid (108), a support cylinder (109), a suction inlet (110), a rotating filter element (117), a connecting assembly, a transmission assembly, and a scraping assembly; The feed connector (102) is fixedly installed on one side of the dust collection bin (101); the static eliminator (103) is fixedly installed on one side of the feed connector (102); the top of the dust collection bin (101) is connected to the bin cover (108), and the bottom is fixedly connected to the discharge hopper (104); the support cylinder (109) is fixedly installed in the middle of the top of the bin cover (108); the rotating filter element (117) is located inside the dust collection bin (101); the connecting assembly is fixedly installed at the bottom of the discharge hopper (104); the transmission assembly is installed inside the support cylinder (109) and connected to the rotating filter element (117); the scraping assembly is located directly below the rotating filter element (117).

2. The dust collection device for grinding and processing barite ore powder according to claim 1, characterized in that: The scraping assembly includes a drive motor (118), a drive shaft (119), a connecting rod (120), and a scraper (121); the drive motor (118) is fixedly installed at the top of the support cylinder (109); the drive shaft (119) is located inside the dust collection bin (101), and its top end passes through the bin cover (108) and the support cylinder (109) and is fixedly connected to the output shaft of the drive motor (118); the connecting rod (120) is provided in several groups, two in each group, and one end is fixedly connected to the drive shaft (119), and the other end is fixedly connected to the scraper (121); the scraper (121) has a rubber plate (122) on the contact side with the dust collection bin (101).

3. The dust collection device for grinding and processing barite ore powder according to claim 2, characterized in that: The transmission assembly includes a rotating motor (111), a rotating bevel gear (112), a transmission bevel gear (113), a transmission cylinder (114), a filter element support (115), and a sealed bearing (116). The rotating motor (111) is fixedly installed on one side of the support cylinder (109), and its output end extends into the support cylinder (109) and is fixedly connected to the rotating bevel gear (112). The sealed bearing (116) is fixedly installed in the middle of the bottom end of the bucket cover (108). The transmission cylinder (114) is sleeved on the outside of the drive shaft (119), with its upper end fixedly connected to the transmission bevel gear (113) and its lower end extending into the sealed bearing (116) and fixedly connected to the filter element support (115). The rotating bevel gear (112) and the transmission bevel gear (113) mesh vertically. The bottom end of the filter element support (115) is fixedly connected to the rotating filter element (117).

4. The dust collection device for grinding and processing barite ore powder according to claim 1, characterized in that: The connecting component is an assembly plate (106); the assembly plate (106) is fixedly installed at the bottom end of the hopper (104) and has a plurality of assembly holes (107).

5. A dust collection device for grinding and processing barite ore powder according to claim 1 or 4, characterized in that: The dust collection bin (101) and the feeding hopper (104) are equipped with smooth plates (105).

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