Grader for grading and screening ore size

Abstract

The grading machine comprises a feeding frame body and a box body, the box body is fixedly connected to the lower side of the left side wall of the feeding frame body, and annular sliding grooves are formed in the left side and the right side of the front side wall and the rear side wall of an inner cavity of the feeding frame body. The grading machine comprises a feeding frame body, positioning battens are fixedly connected to the upper sides of the left side wall and the right side wall of the feeding frame body, supporting battens are rotationally connected between the front side wall and the rear side wall of each positioning batten through connecting pieces, and a connecting plate is fixedly connected to the top of each supporting batten. According to the mineral aggregate grading device, mineral aggregate accumulation and blockage at an inlet of the feeding frame are not prone to being caused, workers do not need to manually push and scatter the mineral aggregate through tools, time and labor are saved, use is convenient, the use efficiency of the grading machine is improved, dust collection treatment can be conveniently conducted at the inlet of the feeding frame, environmental pollution of a mineral aggregate grading working area is reduced, and the workers can work beside the grading machine easily.

Description

Technical Field

[0001] This utility model relates to the field of grading machine technology, specifically a grading machine for classifying and screening the size of ores. Background Technology

[0002] A classifier is a device used to classify mineral sands according to particle size. It is widely used in mineral processing operations. Currently, the spiral classifier is more commonly used. Its structure includes a trough, and the bottom plate of the trough is divided into sections with discharge ports of varying sizes. A collection box is set under each discharge port. The trough is equipped with a spiral drive mechanism, which drives the mineral material, so that the mineral material smaller than the corresponding size falls from the discharge port and enters the corresponding collection box, thereby classifying the mineral material.

[0003] The current announcement number: CN 208194649 U describes a side-discharge spiral classifier for mineral processing, which includes a base plate. A motor frame is fixedly connected to the left end of the base plate, and a motor is fixedly installed on the top of the motor frame. A first bearing frame is fixedly connected to the left side of the top of the base plate, and a first bearing is fixedly connected to the top of the first bearing frame. A drive shaft is fixedly connected inside the first bearing. The output shaft of the motor is fixedly connected to the left end of the drive shaft via a coupling. A drive gear is fixedly connected to the right end of the drive shaft. A support rod is fixedly connected to the right side of the top of the base plate, and a frame is fixedly connected to the top of the support rod. This side-discharge spiral classifier for mineral processing features high gear transmission efficiency. Utilizing gravity, it allows for more precise screening and stepless adjustment, enabling higher standards for mineral fineness and more thorough screening. However, during actual operation, it was found that the feed frame only has a trapezoidal inlet for material guidance. Since the ore particles vary in size and contain moisture, large quantities easily accumulate and clog the feed frame. The lack of a shaking mechanism requires manual tools to break up the ore, which is time-consuming, labor-intensive, and inconvenient, reducing the classifier's efficiency. Furthermore, some ore dust is released into the air during feed, making dust collection at the feed frame inlet difficult, causing environmental pollution and hindering worker supervision. Therefore, we propose a classifier specifically designed for ore size classification. Utility Model Content

[0004] The purpose of this utility model is to provide a classifier for grading and screening ores by size, in order to solve the problems mentioned in the background art. Because the feed frame of this device is only designed with a trapezoidal opening for material guidance, and the ores have varying particle sizes and contain a certain amount of moisture, they easily accumulate and clog the feed frame after being fed in in large quantities. Furthermore, the feed frame lacks a shaking mechanism, requiring workers to manually push and break up the ores with tools, which is time-consuming, labor-intensive, and inconvenient, reducing the efficiency of the classifier. Additionally, when the ores are fed into the feed frame, some of the ores dust easily escapes into the air, making it difficult to vacuum the inlet of the feed frame, causing environmental pollution and making it inconvenient for workers to work nearby.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a classifier for grading and screening ore by size, comprising a feed frame body and a housing, wherein the housing is fixedly connected to the lower side of the left side wall of the feed frame body, and annular grooves are formed on the left and right sides of the front and rear side walls of the inner cavity of the feed frame body. Positioning strips are fixedly connected to the upper sides of the left and right side walls of the feed frame body, and support strips are rotatably connected between the front and rear side walls of the positioning strips via connectors. A connecting plate is fixedly connected to the top of the support strips, and guide plates are fixedly connected to the bottom right side of the left connecting plate and the bottom left side of the right connecting plate. The lower side of the left and right side walls of the inner cavity of the feed frame body... A fixed plate is fixedly connected between the two sides. An electric hydraulic rod is rotatably connected to the middle of the inner side wall of the fixed plate. The output end of the electric hydraulic rod is rotatably connected to the middle of the left side wall of the left guide plate and the middle of the right side wall of the right guide plate. A first expansion cover is fixedly connected to the top left side of the left connecting plate. A hose is inserted into the middle of the left side wall of the first expansion cover and is inserted into the middle of the top of the box. A shell is fixedly connected between the lower side of the left side wall of the inner cavity and the right side of the top of the inner cavity. An air pump is fixedly connected to the middle of the bottom of the inner cavity of the box. A conduit is inserted into the air pump end. A storage box is inserted into the lower side of the left side wall of the box.

[0006] As a further description of the above technical solution:

[0007] The guide plate has a slider fixedly connected to the lower side of the front and rear side walls, and the slider is slidably connected to the inner cavity of the annular groove.

[0008] As a further description of the above technical solution:

[0009] A filter screen is fixedly connected between the right sides of the inner sidewall of the first expansion cover. The filter screen is made of aluminum alloy.

[0010] As a further description of the above technical solution:

[0011] A first through hole is opened in the middle of the lower side of the left side wall of the box, and a first dustproof net is fixedly connected between the inner side walls of the first through hole.

[0012] As a further description of the above technical solution:

[0013] A second through hole is fixedly connected to the middle of the upper side of the right side wall of the housing, and a second dustproof net is fixedly connected between the inner side walls of the second through hole.

[0014] As a further description of the above technical solution:

[0015] The top end of the conduit is fixedly connected to a second expansion cover, and the second expansion cover is fixedly connected to the upper side of the right side wall of the housing.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This classifier for grading and screening ores by size uses a support plate that, through a rotating connection structure with the positioning plate, carries the connecting plate and guide plate to rotate. Then, through the extension and retraction of the electric hydraulic rod, the lower part of the guide plate slides in the direction of the annular chute, causing the guide plate to vibrate during reciprocating sliding. This gives the classifier's feed frame a vibration mechanism, making it less likely for the ore to accumulate and block at the feed frame inlet. It eliminates the need for manual tools to push and disperse the ore, saving time and effort, making it easy to use, and improving the efficiency of the classifier.

[0018] 2. This classifier for grading and screening ores by size divides the internal space of the box through a shell. It uses an air pump, a conduit, a second expansion hood, and a second through hole to extract the internal air between the shell and the box, creating negative pressure inside the shell. The air is then drawn into the box through a hose and the first expansion hood, and guided by gravity into a storage box for collection. This facilitates dust collection at the feed frame inlet, reduces environmental pollution in the ores grading work area, and makes it easier for workers to work nearby. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a classifier for classifying and screening ore by size according to the present invention.

[0020] Figure 2 This is a partial three-dimensional structural diagram of a classifier for classifying and screening ore size according to the present invention.

[0021] Figure 3 This is a schematic diagram of the main structure of a classifier for classifying and screening the size of ores according to the present invention.

[0022] Figure 4This is a schematic diagram of the main cross-sectional structure of a classifier for classifying and screening ore size according to the present invention.

[0023] Figure 5 This utility model proposes a classifier for classifying and screening ores by size. Figure 4 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 100, feed frame body; 110, annular chute; 120, positioning strip; 130, support strip; 140, connecting plate; 150, guide shaker; 151, slider; 160, fixing plate; 170, electro-hydraulic rod; 180, first expansion cover; 181, filter screen; 190, hose; 200, housing; 210, first through hole; 220, first dustproof net; 230, shell; 240, second through hole; 250, second dustproof net; 260, vacuum pump; 270, conduit; 280, second expansion cover; 290, storage box. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, 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. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] This utility model provides a classifier for grading and screening ores by size. The classifier's feed frame has a shaking mechanism and facilitates dust extraction at the feed frame inlet. Please refer to [link to relevant documentation]. Figure 1-5 It includes the feed frame body 100 and the box body 200;

[0029] Please refer to it again. Figure 1-5 The inner cavity of the feed frame body 100 has annular grooves 110 on the front and rear side walls and the left and right sides. The annular grooves 110 are used to limit the slider 151. Positioning strips 120 are fixedly connected to the upper side of the left and right side walls of the feed frame body 100. Positioning strips 120 are used to support support strips 130. The front and rear side walls of the positioning strips 120 are rotatably connected to the support strips 130 through connectors. The top of the support strips 130 is fixedly connected to the connecting plate 140. The bottom right side of the left connecting plate 140 and the bottom left side of the right connecting plate 140 are fixedly connected to the guide shaking plate 150. The support strips 130 are used to facilitate the shaking of the connecting plate 140 and the guide shaking plate 150 with the help of the positioning strips 120. The middle of the lower side of the inner cavity of the feed frame body 100 is fixedly connected to the fixing plate 160. The fixed plate 160 is used to support the electric hydraulic rod 170. The electric hydraulic rod 170 is rotatably connected to the middle of the inner side wall of the fixed plate 160, and the output end of the electric hydraulic rod 170 is rotatably connected to the middle of the left side wall of the left guide plate 150 and the middle of the right side wall of the right guide plate 150. The electric hydraulic rod 170 is used to push the guide plate 150 to vibrate and slide in the direction of the annular groove 110. The top left side of the left connecting plate 140 is fixedly connected to the first expansion cover 180. The first expansion cover 180 is used to expand the dust collection range. The flexible hose 190 is inserted into the middle of the left side wall of the first expansion cover 180, and the flexible hose 190 is inserted into the middle of the top of the box 200. The flexible hose 190 is used to facilitate the introduction of mineral dust into the box 200. The feed frame body 100 is used to support the box 200.

[0030] Please refer to it again. Figure 1-5A housing 230 is fixedly connected between the lower left side wall of the inner cavity of the housing 200 and the upper right side of the inner cavity. The housing 230 is used to divide the internal space of the housing 200. An air pump 260 is fixedly connected to the middle of the bottom of the inner cavity of the housing 200. A conduit 270 is inserted into the air extraction end of the air pump 260. The air pump 260 is used to extract air from the inside of the housing 230 in conjunction with the conduit 270, the second expansion cover 280 and the second through hole 240. A storage box 290 is inserted into the lower left side wall of the housing 200. The storage box 290 is used to hold mineral dust. The housing 200 is fixedly connected to the lower left side wall of the feed frame body 100. The housing 200 is used to provide installation space for the equipment used for dust collection.

[0031] Please refer to it again. Figure 1-5 A slider 151 is fixedly connected to the lower side of the front and rear side walls of the guide plate 150, and the slider 151 is slidably connected to the inner cavity of the annular groove 110. The guide plate 150 is restricted in the guiding sliding direction by the slider 151 in cooperation with the annular groove 110.

[0032] Please refer to it again. Figure 1-5 A filter screen 181 is fixedly connected between the inner side wall and the right side of the first expansion cover 180. The filter screen 181 is made of aluminum alloy, which has high corrosion resistance and strength.

[0033] Please refer to it again. Figure 1-5 A first through hole 210 is opened in the middle of the lower left side wall of the housing 200. A first dustproof net 220 is fixedly connected between the inner side walls of the first through hole 210. The first through hole 210 provides a convenient way for the air pump 260 to discharge air out of the housing 200.

[0034] Please refer to it again. Figure 1-5 A second through hole 240 is fixedly connected to the middle of the upper side of the right side wall of the housing 230. A second dustproof net 250 is fixedly connected between the inner side walls of the second through hole 240. The second dustproof net 250 can block dust from entering the air through the second through hole 240.

[0035] Please refer to it again. Figure 1-5 The top end of the conduit 270 is fixedly connected to a second expansion cover 280, and the second expansion cover 280 is fixedly connected to the upper side of the right side wall of the housing 230. The suction end of the conduit 270 can be enlarged through the second expansion cover 280 and can communicate with the second through hole 240.

[0036] In summary, the supporting plate 130, through its rotating connection structure with the positioning plate 120, carries the connecting plate 140 and the guide vibrating plate 150 to rotate. Then, the electric hydraulic rod 170 extends and retracts, causing the guide vibrating plate 150 to slide along the direction of the annular groove 110. This drives the guide vibrating plate 150 to vibrate during reciprocating sliding, giving the classifier's feed frame a vibrating mechanism. This prevents the accumulation and blockage of mineral material at the feed frame inlet, eliminating the need for manual tools to push and disperse the mineral material. It saves time and effort, is easy to use, and improves the efficiency of the classifier.

[0037] In summary, the internal space of the box 200 is divided by the shell 230, and the air pump 260, in conjunction with the conduit 270, the second expansion cover 280 and the second through hole 240, extracts the internal air between the shell 230 and the box 200, creating a negative pressure inside the shell 230. The escaped mineral dust is then sucked into the box 200 through the hose 190 and the first expansion cover 180 and guided by gravity into the storage box 290 for collection. This facilitates dust collection at the inlet of the feed frame, reduces environmental pollution in the mineral grading work area, and makes it easier for workers to work nearby.

[0038] In practical use, those skilled in the art first manually operate the classifier control terminal to start the air pump 260. Then, the air pump 260, in conjunction with the conduit 270, the second expansion cover 280, and the second through hole 240, extracts air from the space between the housing 230 and the box 200, creating negative pressure in the space. Simultaneously, it drives the hose 190 and the first expansion cover 180 to generate air suction. Then, the classifier control terminal is operated to start the electric hydraulic rod 170 for telescopic movement. Following this, the electric hydraulic rod 17... Under the push and pull of 0, the guide shaker 150 shakes with the help of the annular slide 110 and the slider 151, and with the top part of the guide shaker 150 positioned by the support bar 130, the connecting plate 140 and the positioning bar 120. Then, the ore is introduced into the feed frame body 100. The guide shaker 150 shakes into the ore in the feed frame body 100 to prevent the ore from accumulating. At the same time, the dust that escapes from the air is sucked into the box 200 through the first expansion cover 180 and the hose 190, and finally falls into the storage box 290 for centralized collection.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A classifier for grading and screening ore by size, characterized in that: The system includes a feed frame body (100) and a housing (200). The housing (200) is fixedly connected to the lower left side wall of the feed frame body (100). Annular grooves (110) are formed on the left and right sides of the front and rear side walls of the feed frame body (100). Positioning strips (120) are fixedly connected to the upper sides of the left and right side walls of the feed frame body (100). Supporting strips (130) are rotatably connected between the front and rear side walls of the positioning strips (120) via connectors. A connecting plate (140) is fixedly connected to the top of the supporting strips (130). Guide shakers (150) are fixedly connected to the bottom right side of the left connecting plate (140) and the bottom left side of the right connecting plate (140). A fixing plate (160) is fixedly connected to the middle of the lower sides of the left and right side walls of the feed frame body (100). The inner side wall of the fixing plate (160)... An electric hydraulic rod (170) is rotatably connected in the middle, and the output end of the electric hydraulic rod (170) is rotatably connected to the middle of the left side wall of the left guide plate (150) and the middle of the right side wall of the right guide plate (150). A first expansion cover (180) is fixedly connected to the top left side of the left connecting plate (140). A hose (190) is inserted into the middle of the left side wall of the first expansion cover (180), and the hose (190) is inserted into the middle of the top of the box (200). A shell (230) is fixedly connected between the lower side of the left side wall of the inner cavity of the box (200) and the right side of the top of the inner cavity. A vacuum pump (260) is fixedly connected to the middle of the bottom of the inner cavity of the box (200). A conduit (270) is inserted into the vacuum end of the vacuum pump (260). A storage box (290) is inserted into the lower side of the left side wall of the box (200).

2. A classifier for grading and screening ore size according to claim 1, characterized in that: The guide plate (150) has a slider (151) fixedly connected to the lower side of the front and rear side walls, and the slider (151) is slidably connected to the inner cavity of the annular groove (110).

3. A classifier for grading and screening ore size according to claim 1, characterized in that: A filter screen (181) is fixedly connected between the right sides of the inner wall of the first expansion cover (180), and the filter screen (181) is made of aluminum alloy.

4. A classifier for grading and screening ore size according to claim 1, characterized in that: A first through hole (210) is opened in the middle of the lower side of the left side wall of the box (200), and a first dustproof net (220) is fixedly connected between the inner side walls of the first through hole (210).

5. A classifier for grading and screening ore size according to claim 1, characterized in that: A second through hole (240) is fixedly connected to the middle of the upper side of the right side wall of the housing (230), and a second dustproof net (250) is fixedly connected between the inner side walls of the second through hole (240).

6. A classifier for grading and screening ore size according to claim 1, characterized in that: The top end of the conduit (270) is fixedly connected to a second expansion cover (280), and the second expansion cover (280) is fixedly connected to the upper side of the right side wall of the housing (230).

Images