Screening device

Abstract

The utility model discloses a screening device. The screening device comprises a base (110); the screening assembly (120) comprises at least two screening beds (121) which are arranged at intervals in the height direction (Z) of the base (110), the height of the first end (1201) of each screening bed (121) is lower than the height of the second end (1202) of the screening bed (121), and screening gaps of the screening beds (121) are sequentially reduced from high to low in the height direction (Z); and the vibration motor (130) is configured to drive the screening bed (121) to vibrate synchronously with the vibration motor (130), so that the screened object moves from the second end (1202) to the first end (1201), and part of the screened object moves from the screening bed (121) on the upper end side to the screening bed (121) on the lower end side under the action of the screening gap.

Description

Technical Field

[0001] The utility model relates to the field of cement production equipment, in particular to a screening device for cement gravel. Background Art

[0002] Steel balls are primarily used for grinding cement materials in cement production and are a bulky, fragile item. Current cement mills are φ3.8m*13m in size and feature a two-chamber design (one for crushing, the other for grinding). As cement production increases, the steel balls within the mill gradually deplete, leading to an imbalance in the gradation of different specifications and a decrease in production. Therefore, after a period of production, the balls must be removed from the mill for grading, screening, and metering before being re-introduced. Sorting and grading the steel balls was previously performed manually, which was labor-intensive, inefficient, time-consuming, and labor-intensive. Utility Model Content

[0003] In response to the problems and needs raised above, this solution proposes a screening device, which can achieve the above technical objectives and bring about many other technical effects by adopting the following technical features.

[0004] The utility model provides a screening device, comprising:

[0005] base;

[0006] The screening assembly includes at least two sieve beds spaced apart along the height direction of the base, wherein the height of the first end of each sieve bed is lower than the height of the second end thereof, wherein the screening gap of each sieve bed decreases from high to low along the height direction;

[0007] The vibration motor is configured to drive the sieve bed to vibrate synchronously therewith so that the screened objects move from the second end toward the first end and part of the screened objects move from the sieve bed on the upper end side to the sieve bed on the lower end side under the action of the screening gap.

[0008] In this technical solution, when using the screening device, the objects to be screened are first placed on the sieve bed at the uppermost end of the screening assembly, and the vibration motor is started to make the screening assembly vibrate synchronously with the vibration motor. At this time, the objects to be screened flow from the second end to the first end of the screening assembly. During this process, the objects to be screened with smaller particle sizes among the objects to be screened will be screened through the upper sieve bed to the lower sieve bed in sequence, until they fall into the object box through the lower sieve bed, and the objects to be screened on each sieve bed will flow out through the first end to the corresponding object box. The screening device can effectively screen the objects to be screened, greatly reducing the labor intensity of screening and improving the screening efficiency. In addition, the structure is simple and the reliability is high.

[0009] In addition, the screening device according to the present invention may also have the following technical features:

[0010] In one example of the present invention, it further includes: a screening baffle,

[0011] It is mounted on the screening assembly and disposed near the second end of the sieve bed, and is configured to form a feeding cavity between the screening baffle and the second end of the sieve bed; wherein an output port is formed between the screening baffle and the sieve bed.

[0012] In one example of the present invention, the screening baffle is movably connected to the screening assembly and is configured to be able to adjust the position of the screening baffle to adjust the output of the screened objects in the feeding chamber through the output port per unit time.

[0013] In one example of the present invention,

[0014] Both sides of the screening assembly are fixedly connected with mounting plates;

[0015] In both the mounting plate and the screening baffle, one of them is provided with an oblong hole, and the other of them is provided with a positioning hole, and fasteners are sequentially passed through the oblong hole and the positioning hole.

[0016] In one example of the present invention, mounting plates are fixedly connected to both sides of the screening assembly, mounting slots are provided on the mounting plates, the two mounting slots are arranged opposite to each other, and the two sides of the screening baffle are respectively adapted to the corresponding mounting slots;

[0017] Wherein, a limiting member is connected in the installation groove, which is configured to limit the position of the screening baffle in the installation groove.

[0018] In one example of the present invention, it further includes: an elastic member,

[0019] It is arranged between the screening assembly and the base, and is configured to reduce the vibration impact force between the screening assembly and the base.

[0020] In an example of the present invention, the elastic member includes one of a compression spring, a rubber member and a spring.

[0021] In one example of the present invention, the present invention further includes: at least two output terminals,

[0022] The output end is connected to the first end of the sieve bed and is used to transport the screened objects from the first end to a designated location via the output end; wherein, the positions of at least two output ends are staggered.

[0023] In one example of the present invention, the output terminal includes:

[0024] A main channel and an auxiliary channel connected to the main channel, wherein the main channel is connected to the first end, an angle A is formed between the auxiliary channel and the main channel, and the angle A is greater than or equal to 90°.

[0025] In one example of the present invention, it further includes: a guide plate,

[0026] One end thereof is fixedly connected to the lower end side of the second end of the screening assembly, and the other end thereof extends toward the first end and forms an acute angle B with the sieve bed. The following will describe the preferred embodiment of the present invention in more detail with reference to the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. The drawings are only used to illustrate some embodiments of the present invention, and are not intended to limit all embodiments of the present invention to these drawings.

[0028] Figure 1 Schematic diagram of the structure of a screening device according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the connection structure between the screening assembly and the screening baffle according to one embodiment of the present utility model;

[0030] Figure 3 It is a front view of the connection structure between the screening assembly and the screening baffle according to another embodiment of the present utility model;

[0031] Figure 4 A side view of the connection structure between the screening assembly and the screening baffle according to another embodiment of the present invention;

[0032] Figure 5 This is a schematic structural diagram of a base according to an embodiment of the present utility model;

[0033] Figure 6 Schematic diagram of the structure of the sieve bed according to an embodiment of the present invention;

[0034] Figure 7 for Figure 6 A partial enlarged view of the middle W part.

[0035] List of reference numerals:

[0036] Screening device 100;

[0037] Base 110;

[0038] Pole group 111;

[0039] Pole 1111;

[0040] a first crossbar 112;

[0041] a second crossbar 113;

[0042] Screening assembly 120;

[0043] sieve bed 121;

[0044] Screen rod 1211;

[0045] Screen gap 1212;

[0046] bed side 122;

[0047] First end 1201;

[0048] Second end 1202;

[0049] Vibration motor 130;

[0050] Screening baffle 140;

[0051] Output port 141;

[0052] Positioning hole 142;

[0053] Fastener 143;

[0054] Limiting column 144;

[0055] Limiting member 145;

[0056] Limiting hole 146;

[0057] Mounting plate 150;

[0058] oblong hole 151;

[0059] Mounting slot 152;

[0060] elastic member 160;

[0061] Output 170;

[0062] Main channel 171;

[0063] Auxiliary channel 172;

[0064] guide plate 180;

[0065] Horizontal direction X;

[0066] Horizontal direction Y;

[0067] Height direction Z;

[0068] Extension direction Q;

[0069] Feeding chamber T. DETAILED DESCRIPTION

[0070] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the specification and claims of the present utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not necessarily indicate a quantity limitation. Words such as "include" or "comprising" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0072] According to a screening device 100 of the present invention, Figure 1 As shown, including:

[0073] Base 110; Figure 5 As shown, the base 110 includes two vertical pole groups 111 extending in the height direction Z and spaced apart in the horizontal direction Y, and the two adjacent vertical pole groups 111 are connected by a first crossbar 112; wherein the height of one vertical pole group 111 is smaller than the height of the other vertical pole group 111, each vertical pole group 111 includes two vertical poles 1111 extending in the height direction Z and spaced apart in the horizontal direction X, and the two vertical poles 1111 are connected by a second crossbar 113;

[0074] The screening assembly 120 includes at least two sieve beds 121 spaced apart along the height direction Z of the base 110, and the height of the first end 1201 of each sieve bed 121 is lower than the height of the second end 1202 thereof, wherein the screening gap of each sieve bed 121 decreases from high to low along the height direction Z; for example, Figure 6 and Figure 7 As shown, the sieve bed 121 includes a plurality of sieve bars 1211 extending in the extension direction Q and spaced apart in the transverse direction X, with sieve gaps 1212 formed between two adjacent sieve bars 1211 .

[0075] The vibration motor 130 is configured to drive the sieve beds 121 to vibrate synchronously therewith, thereby causing the sieved objects to move from the second end 1202 toward the first end 1201 and for some sieved objects to move from the upper sieve bed 121 toward the lower sieve bed 121 due to the action of the screening gap.

[0076] When using the screening device 100, objects to be screened (steel balls) are first placed onto the sieve bed 121 at the uppermost end of the screening assembly 120. The vibration motor 130 is then started, causing the screening assembly 120 and the vibration motor 130 to vibrate synchronously. At this point, the objects to be screened flow from the second end 1202 to the first end 1201 of the screening assembly 120. During this process, smaller particles (steel balls) among the objects to be screened are sequentially screened through the upper sieve bed 121 to the lower sieve bed 121, until they fall through the lowermost sieve bed 121 into the object box. The objects to be screened on each sieve bed 121 flow out of the first end 1201 into the corresponding object box. The screening device 100 can effectively screen the objects to be screened, greatly reducing screening labor intensity and improving screening efficiency. Furthermore, the structure is simple and reliable.

[0077] In one example of the present invention, it further includes: a screening baffle 140,

[0078] It is mounted on the screening assembly 120 and disposed near the second end 1202 of the sieve bed 121, and is configured to form a feeding cavity T between the screening baffle 140 and the second end 1202 of the sieve bed 121; wherein an output port 141 is formed between the screening baffle 140 and the sieve bed 121;

[0079] By providing the screening baffle 140, the screened objects can be first stored in the feeding chamber T, and the flow of the screened objects on the sieve bed 121 can be controlled through the output port 141. By providing the screening baffle 140, the screened objects can be repeatedly vibrated and screened on the sieve bed 121, thereby greatly improving the screening accuracy.

[0080] In one example of the present invention, the screening baffle 140 is movably connected to the screening assembly 120 and is configured to be able to adjust the position of the screening baffle 140 to adjust the output of the screened objects in the feeding chamber T through the output port 141 per unit time;

[0081] In short, by designing the screening baffle 140 as a movable and adjustable structure, it is convenient to adjust the size of the output port 141, and then control the output volume of the output port 141, so as to more flexibly control the screening flow rate, thereby improving the adaptability of the screening device 100 for screening objects of different particle sizes.

[0082] In one example of the present invention,

[0083] Mounting plates 150 are fixedly connected to both sides of the screening assembly 120 ; for example, the mounting plates 150 are angle steels.

[0084] An oblong hole 151 is formed on one of the mounting plate 150 and the screening baffle 140 , and a positioning hole 142 is formed on the other. A fastener 143 passes through the oblong hole 151 and the positioning hole 142 in sequence.

[0085] For example, Figure 2 As shown, the mounting plate 150 is fixedly connected to the bed side 122 of the screening assembly 120 (for example, by welding), and the screening baffle 140 is mounted on the mounting plates 150 on both sides. Since a portion of the screening baffle 140 extends into the inner side of the bed side 122, the lower end side of the screening baffle 140 is designed to be a stepped structure, that is, the width dimension in the transverse direction X near the lower half is smaller than the width dimension in the transverse direction X near the upper half, which facilitates the connection between the screening baffle 140 and the screening assembly 120.

[0086] The oblong hole 151 is a graphic structure formed by selecting two points on a circle that are located on the same straight line or selecting two arcs on the circle that are symmetrical about the circle and stretching the circle along the straight line or arc.

[0087] For example, a positioning hole is provided on the mounting plate 150, and an oblong hole is provided on the screening baffle 140. The fastener 143 is a bolt member, which passes through the positioning hole and the oblong hole in sequence, and the free end of the bolt is fixed by a nut. When the position of the screening baffle 140 needs to be adjusted, the screening baffle 140 is moved to a specified position, that is, the bolt is moved to the specified position in the oblong hole, and then the bolt is fixed by the nut.

[0088] For another example, an oblong hole 151 is provided on the mounting plate 150, and a positioning hole 142 is provided on the screening baffle 140. The fastener 143 is a bolt member, which passes through the positioning hole 142 and the oblong hole 151 in sequence, and the free end of the bolt is fixed by a nut. When the position of the screening baffle 140 needs to be adjusted, the screening baffle 140 is moved to a specified position, that is, the bolt is moved to the specified position in the oblong hole 151, and then the bolt is fixed by the nut.

[0089] By providing an oblong hole 151 on one of the mounting plate 150 and the screening baffle 140 , relative movement adjustment between the two can be achieved, thereby achieving position adjustment of the screening baffle 140 .

[0090] Of course, the present invention is not limited thereto, and oblong holes 151 may be provided on both the mounting plate 150 and the screening baffle 140 , so as to adjust the position of the screening baffle 140 .

[0091] In one example of the present invention, Figure 3 、 Figure 4 As shown, the two sides of the screening assembly 120 are respectively fixedly connected with mounting plates 150, and the mounting plates 150 are provided with mounting grooves 152. The two mounting grooves 152 are arranged opposite to each other, and the two sides of the screening baffle 140 are respectively adapted to the corresponding mounting grooves 152;

[0092] The installation groove 152 is connected to a limiting member 145 , which is configured to limit the position of the screening baffle 140 in the installation groove 152 ;

[0093] That is, the screening baffle 140 is clamped in the mounting groove 152, and the screening baffle 140 can be adjusted in height up and down along the extension direction Q of the mounting groove 152, thereby adjusting the size of the output port 141 between the screening baffle 140 and the sieve bed 121, thereby adjusting the output flow rate of the screened objects; wherein the corresponding limit member 145 can be a positioning pin, for example, Figure 3 、 Figure 4 As shown, a limiting column 144 is formed on the screening baffle 140, and a plurality of limiting holes 146 are opened in the installation direction of the mounting plate 150. Each limiting hole 146 is opened through a mounting groove 152. The limiting member 145 is adapted to any one of the plurality of limiting holes 146. The limiting column 144 is stopped at the upper end of the limiting member 145, and the height of the limiting column 144 is adjusted according to the height requirements, thereby adjusting the height of the screening baffle 140.

[0094] It should be noted that the installation direction described here is perpendicular to the extension direction Q, and the extension direction Q is a direction parallel to the plane of the sieve bed 121.

[0095] In one example of the present invention, Figure 1 As shown, it also includes: an elastic member 160,

[0096] It is provided between the screening assembly 120 and the base 110 and is configured to mitigate the vibration impact force between the screening assembly 120 and the base 110;

[0097] Since the screening component 120 will vibrate under the action of the vibration motor 130, the elastic member 160 is arranged between the screening component 120 and the base 110, which can effectively buffer the impact force between the screening component 120 and the base 110, greatly reducing the transmission of vibration to the base 110, thereby protecting the screening device 100.

[0098] In an example of the present invention, the elastic member 160 includes one of a compression spring, a rubber member, and a spring.

[0099] For example, when the elastic member 160 is a compression spring, a first mounting seat is welded on the screening assembly 120, and a second mounting seat is welded on the base 110. The compression spring is arranged between the first mounting seat and the second mounting seat, thereby effectively buffering the impact vibration of the screening assembly 120; preferably, the first mounting seat and the second mounting seat each include four.

[0100] In one example of the present invention, the present invention further includes: at least two output terminals 170,

[0101] The output end 170 is connected to the first end 1201 of the sieve bed 121 and is used to transport the sieved objects from the first end 1201 to a designated location via the output end 170; wherein at least two output ends 170 are staggered.

[0102] The output end 170 can be provided to guide the objects to be screened that flow through the first end 1201, and the two output ends 170 can be staggered so that the positions of the two output ends 170 do not overlap with each other and do not affect each other.

[0103] It can be understood that the staggered arrangement of the output ends 170 mentioned here means that the output ports 141 cannot completely overlap in the extension direction Q.

[0104] In one example of the present invention, Figure 1 As shown, the output terminal 170 includes:

[0105] A main channel 171 and an auxiliary channel 172 communicating with the main channel 171 , wherein the main channel 171 is communicated with the first end 1201 , and an angle A is formed between the auxiliary channel 172 and the main channel 171 , wherein the angle A is greater than or equal to 90°;

[0106] Specifically, the main channel 171 and its corresponding sieve bed 121 are on the same plane, and the auxiliary channel 172 forms a direct or obtuse angle with the main channel 171, thereby facilitating the sieved object box to receive the sieved objects.

[0107] In one example of the present invention, Figure 1 As shown, it also includes: a guide plate 180,

[0108] One end thereof is fixedly connected to the lower end side of the second end 1202 of the screening assembly 120 , and the other end thereof extends toward the first end 1201 and forms an acute angle B with the sieve bed 121 .

[0109] For example, a material receiving box can be provided at the end of the guide plate 180 to receive the screened material that has been screened. By providing the guide plate 180, screened objects that are smaller than the minimum screen gap 1212 of the screening assembly 120 can be guided, while also reducing the screening area of the screen bed 121 and preventing the screened objects from being scattered on the ground. The exemplary implementation of the screening device 100 proposed by the present invention has been described in detail above with reference to the preferred embodiments. However, it will be understood by those skilled in the art that various modifications and variations can be made to the above-mentioned specific embodiments without departing from the concept of the present invention, and various combinations of the various technical features and structures proposed by the present invention can be made without exceeding the scope of protection of the present invention, which is determined by the appended claims.

Claims

1. A screening device, characterized in that: include: Base (110); The screening assembly (120) comprises at least two sieve beds (121) arranged at intervals along the height direction (Z) of the base (110), wherein the height of the first end (1201) of each sieve bed (121) is lower than the height of the second end (1202) thereof, wherein the screening gap of each sieve bed (121) decreases from high to low along the height direction (Z); a vibration motor (130) configured to drive the sieve bed (121) to vibrate synchronously therewith, thereby causing the screened objects to move from the second end (1202) toward the first end (1201) and for a portion of the screened objects to move from the sieve bed (121) on the upper end side toward the sieve bed (121) on the lower end side under the action of the screening gap; A screening baffle (140) is mounted on the screening assembly (120) and disposed near the second end (1202) of the sieve bed (121), and is configured to form a feeding cavity (T) between the screening baffle (140) and the second end (1202) of the sieve bed (121); wherein an output port (141) is formed between the screening baffle (140) and the sieve bed (121); the screening baffle (140) and the screening assembly (120) are movably connected, and are configured to be able to adjust the position of the screening baffle (140) to adjust the output volume per unit time of the screened objects in the feeding cavity (T) through the output port (141).

2. The screening device according to claim 1, characterized in that Mounting plates (150) are fixedly connected to both sides of the screening assembly (120); One of the mounting plate (150) and the screening baffle (140) is provided with an oblong hole (151), and the other is provided with a positioning hole (142). A fastener (143) is sequentially passed through the oblong hole (151) and the positioning hole (142).

3. The screening device according to claim 1, characterized in that Mounting plates (150) are fixedly connected to both sides of the screening assembly (120), and mounting grooves (152) are provided on the mounting plates (150). The two mounting grooves (152) are arranged opposite to each other, and both sides of the screening baffle (140) are respectively adapted to the corresponding mounting grooves (152). A limiting member (145) is connected to the installation groove (152) and is configured to limit the position of the screening baffle (140) in the installation groove (152).

4. The screening device according to claim 1, characterized in that Also included: an elastic member (160), It is arranged between the screening assembly (120) and the base (110), and is configured to mitigate the vibration impact force between the screening assembly (120) and the base (110).

5. The screening device according to claim 4, characterized in that The elastic member (160) comprises one of a compression spring, a rubber member, and a spring.

6. The screening device according to claim 1, characterized in that Also includes: at least two output terminals (170), The output end (170) is connected to the first end (1201) of the sieve bed (121) and is used to transport the sieved objects from the first end (1201) to a designated location via the output end (170); wherein the positions of at least two output ends (170) are staggered.

7. The screening device according to claim 6, characterized in that The output end (170) comprises: A main channel (171) and an auxiliary channel (172) connected to the main channel (171), wherein the main channel (171) is connected to the first end (1201), and an angle A is formed between the auxiliary channel (172) and the main channel (171), and the angle A is greater than or equal to 90°.

8. The screening device according to claim 1, characterized in that It also includes a guide plate (180), one end of which is fixedly connected to the lower end side of the second end (1202) of the screening assembly (120), and the other end of which extends toward the first end (1201) and forms an acute angle B with the screening bed (121).

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