Slag screening device

Abstract

The present application discloses a slag screening device, including a screening box, a driving mechanism and a screening mechanism. The screening mechanism includes a screening assembly, a guide rod, a limit plate and a spring. The screening assembly is arranged in an inclined manner, the upper end is hinged with the screening box, and the lower end corresponds to the waste outlet position, so that the large particle waste screened by the screening assembly can slide down along the inclined direction and be discharged from the waste outlet. The driving mechanism includes a motor and an eccentric wheel, the eccentric wheel is connected to the output end of the motor, and the motor drives the eccentric wheel to rotate. One end of the guide rod is connected to the lower end of the screening assembly, the limit plate is located between the eccentric wheel and the screening assembly, and the spring is sleeved outside the guide rod. The two ends of the spring act on the lower surface of the limit plate and the guide rod respectively. Under the restoring action of the spring, the other end of the guide rod is pressed against the peripheral surface of the eccentric wheel. Under the condition that the motor is running, the motor drives the eccentric wheel to rotate, and cooperates with the restoring action of the spring to make the screening assembly vibrate to screen the slag.

Description

Technical Field

[0001] The present application belongs to the technical field of screening equipment, and in particular, relates to a slag screening device. Background Art

[0002] With the development of society, the application of slag powder is becoming more and more extensive. Slag powder is the abbreviation of granulated blast furnace slag powder. It is a high-quality concrete admixture. It is made of granulated blast furnace slag that meets the standards, dried and ground to achieve a powder with a considerable fineness and a considerable activity index. Granulated blast furnace slag is a molten product with calcium silicate as the main component obtained when the iron smelting plant smelts pig iron in the blast furnace. It is an industrial solid waste residue obtained after water quenching and granulation. Most of it is glassy and has potential hydraulic cementitious properties.

[0003] During the recycling process of slag, a slag screening device is needed to screen the slag to facilitate the subsequent recycling of the slag. However, the structure of the slag screening device in the related art is relatively complex. Utility Model Content

[0004] The present application aims to at least to some extent solve the technical problem of the relatively complex structure of the slag screening device in the related art. To this end, the present application provides a slag screening device.

[0005] A slag screening device provided in an embodiment of the present application includes:

[0006] A screening box, comprising a screening cavity and a feed port, a discharge port and a waste material outlet connected to the screening cavity;

[0007] A driving mechanism, comprising a motor and an eccentric wheel, wherein the eccentric wheel is located in the screening chamber and connected to the output end of the motor;

[0008] The screening mechanism is located in the screening chamber and above the eccentric wheel; the screening mechanism comprises a screening assembly, a guide rod, a limit plate and a spring; the screening assembly is tilted, the upper end is hinged to the screening box, and the lower end corresponds to the waste outlet position; the feed port and the discharge port are respectively located above and below the screening mechanism, and the eccentric wheel is located below the screening assembly;

[0009] One end of the guide rod is connected to the lower end of the screening assembly, the limit plate is located between the eccentric wheel and the screening assembly, the limit plate is provided with a sliding hole for the guide rod to extend into along the vertical reciprocating movement, the spring is sleeved outside the guide rod, the two ends of the spring act on the lower surface of the limit plate and the guide rod respectively, under the restoring action of the spring, the other end of the guide rod is pressed against the circumferential surface of the eccentric wheel.

[0010] In some embodiments, the guide rod includes a guide rod body and a stop plate, the upper end of the guide rod body is connected to the lower end of the screening assembly, and the lower end of the guide rod body is connected to the stop plate; the spring is sleeved on the guide rod body, and the two ends of the spring act on the lower surface of the limit plate and the upper surface of the stop plate respectively.

[0011] In some embodiments, there are multiple screening mechanisms, and the multiple screening mechanisms are arranged in sequence at intervals along the height direction of the screening box; the feed port is located above the topmost screening mechanism, and the discharge port is located below the bottommost screening mechanism; the number of the waste outlets is consistent with the number of the screening mechanisms, and the multiple waste outlets are arranged in sequence at intervals along the height direction of the screening box, respectively corresponding to the lower end position of each of the screening components.

[0012] In some embodiments, the driving mechanism also includes gears and connecting shafts whose number is the same as that of the screening mechanism, and multiple gears and multiple eccentric wheels are respectively fixedly mounted on multiple connecting shafts, and each connecting shaft is rotatably connected to the screening box and is respectively located under each screening component; multiple gears are meshed in sequence, and the motor is transmission-connected to one of the gears to drive each connecting shaft to rotate, so that the connecting shaft can drive the eccentric wheel to rotate.

[0013] In some embodiments, the slag screening device further includes a protective shell, which is located outside the screening chamber and fixedly connected to the screening box, and the motor and the gear are located inside the protective shell.

[0014] In some embodiments, the screening assembly includes a screening net, a first fixed frame and a second fixed frame, the first fixed frame and the second fixed frame are located on both sides of the inclination direction of the screening net and are detachably connected to the screening net; the first fixed frame is hinged to the cavity wall of the screening box, and the second fixed frame corresponds to the waste outlet position.

[0015] In some embodiments, the sieve net is provided with a first protrusion, the first fixing frame is provided with a first groove, the first protrusion is located in the first groove, and the first protrusion and the first fixing frame are detachably connected by a first bolt penetrating a side wall of the first groove;

[0016] The screening net is also provided with a second protrusion, the second fixing frame is provided with a second groove, the second protrusion is located in the second groove, and the second protrusion and the second fixing frame are detachably connected by a second bolt penetrating through a side wall of the second groove.

[0017] In some embodiments, the lower portion of the screening chamber is conical, and the discharge port is arranged at the lowest point of the screening chamber.

[0018] In some embodiments, the slag screening device further comprises a material guide plate located at the waste material outlet, wherein the material guide plate is located outside the screening chamber and connected to the screening box.

[0019] In some embodiments, the screening box includes a box body and a box cover, and the box cover is detachably connected to the box body and encloses the screening chamber together with the box body.

[0020] The utility model has at least the following beneficial effects:

[0021] The present application provides a slag screening device, which includes a screening box, a driving mechanism and a screening mechanism. The screening mechanism includes a screening assembly, a guide rod, a limit plate and a spring. The screening assembly is arranged in an inclined manner, the upper end is hinged with the screening box, and the lower end corresponds to the position of the waste outlet, so that the large particle waste screened by the screening assembly can slide down along the inclined direction and finally be discharged from the waste outlet. The driving mechanism includes a motor and an eccentric wheel, the eccentric wheel is connected to the output end of the motor, and the motor drives the eccentric wheel to rotate. One end of the guide rod is connected to the lower end of the screening assembly, the limit plate is located between the eccentric wheel and the screening assembly, and the spring is sleeved outside the guide rod. The two ends of the spring act on the lower surface of the limit plate and the guide rod respectively. Under the restoring action of the spring, the other end of the guide rod is pressed against the peripheral surface of the eccentric wheel. Under the condition of the motor running, the motor drives the eccentric wheel to rotate, and the guide rod swings up and down in cooperation with the restoring action of the spring. Since the guide rod is connected to the screening assembly, the screening assembly vibrates up and down to screen the slag, so that the waste is separated and discharged from the waste outlet. After the present application is designed in this way, the eccentric wheel is driven to rotate by the motor, thereby driving the screening assembly to vibrate up and down. Under the action of the spring, the guide rod and the eccentric wheel are kept in contact to ensure the amplitude of the vibration, thereby ensuring the slag separation effect, and helping to simplify the structure of the slag screening device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic structural diagram of a slag screening device in one or more embodiments of the present application is shown.

[0024] Figure 2 Shows Figure 1 Schematic diagram of the half-section structure.

[0025] Figure 3 Shows Figure 2 Enlarged view of point A in the middle.

[0026] Figure 4 Shows Figure 2 Enlarged view of point B in the middle.

[0027] Figure 5 A schematic structural diagram of a screening assembly of a slag screening device in one or more embodiments of the present application is shown.

[0028] Reference numerals: 100 - slag screening device, 110 - screening box, 111 - box body, 112 - box cover, 110a - screening chamber, 110b - feed port, 110c - discharge port, 110d - waste outlet, 120 - driving mechanism, 121 - motor, 122 - eccentric wheel, 123 - gear, 124 - connecting shaft, 130 - screening mechanism, 131 - screening assembly, 1311 - screening net, 1311 1-first protrusion, 13112-second protrusion, 1312-first fixed frame, 13121-first groove, 1313-second fixed frame, 13131-second groove, 132-guide rod, 1321-guide rod body, 1322-stop plate, 133-limiting plate, 133a-sliding hole, 134-spring, 135-first bolt, 136-second bolt, 140-protective shell, 150-guide plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] With the development of society, the application of slag powder is becoming more and more extensive. Slag powder is the abbreviation of granulated blast furnace slag powder. It is a high-quality concrete admixture. It is made of granulated blast furnace slag that meets the standards, dried and ground to achieve a powder with a considerable fineness and a considerable activity index. Granulated blast furnace slag is a molten product with calcium silicate as the main component obtained when the iron smelting plant smelts pig iron in the blast furnace. It is an industrial solid waste residue obtained after water quenching and granulation. Most of it is glassy and has potential hydraulic cementitious properties.

[0034] During the recycling process of slag, a slag screening device is needed to screen the slag to facilitate the subsequent recycling of the slag. However, the structure of the slag screening device in the related art is relatively complex. In the related art, each screening component is provided with a vibration motor, and the screening component is vibrated by providing a vibration motor. In such a structural design, the number of vibration motors is large, the structural requirements of the screening mechanism are high, the structure is complex, and the manufacturing cost of the slag screening device is increased.

[0035] Therefore, in the related art, the slag screening device has the technical problem of complex structure. The embodiment of the present application provides a slag screening device, which can at least solve the above technical problem to a certain extent.

[0036] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0037] The embodiment of the present application provides a slag screening device 100 . The slag screening device 100 provided in the embodiment of the present application can drive multiple screening mechanisms 130 to vibrate simultaneously through the setting of a motor 121 , which helps to simplify the structure of the slag screening device 100 .

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the slag screening device 100 includes a screening box 110 , a driving mechanism 120 and a screening mechanism 130 .

[0039] The screening box 110 has a screening chamber 110a and a feed port 110b, a discharge port 110c and a waste outlet 110d connected to the screening chamber 110a. The slag to be screened enters the screening chamber 110a from the feed port 110b, is screened in the screening chamber 110a, and the small-particle slag obtained after screening is discharged from the screening chamber 110a through the discharge port 110c, and the large-particle slag discharged from the screening chamber 110a is discharged from the screening chamber 110a through the waste outlet 110d.

[0040] The driving mechanism 120 includes a motor 121 and an eccentric wheel 122. The eccentric wheel 122 is located in the screening chamber 110a and connected to the output end of the motor 121. The motor 121 rotates, driving the eccentric wheel 122 to rotate.

[0041] The screening mechanism 130 is located in the screening chamber 110a and above the eccentric wheel 122. The screening mechanism 130 includes a screening assembly 131, a guide rod 132, a limit plate 133 and a spring 134.

[0042] The screening assembly 131 is used to screen slag, and is arranged in an inclined manner, with the upper end hinged to the screening box 110, and the lower end corresponding to the position of the waste outlet 110d. In other words, the screening assembly 131 is arranged in an inclined manner, and the height of the side of the screening assembly 131 close to the waste outlet 110d is lower, and the height of the side of the screening assembly 131 rotatably connected to the screening box 110 is higher, so that the large particles of slag screened on the screening assembly 131 can fall into the waste outlet 110d along the inclined direction and be discharged from the waste outlet 110d.

[0043] The feed port 110b is located above the screening mechanism 130, and the discharge port is located below the screening mechanism 130, so as to ensure that the slag to be screened entering through the feed port 110b is screened by the screening assembly 131 and finally discharged from the discharge port 110c.

[0044] One end of the guide rod 132 is connected to the lower end of the screening assembly 131, the limit plate 133 is located between the eccentric wheel 122 and the screening assembly 131, and is fixedly connected to the cavity wall of the screening box 110, the limit plate 133 is provided with a sliding hole 133a for the guide rod 132 to extend into along the vertical reciprocating movement, the spring 134 is sleeved on the outside of the guide rod 132, and the two ends of the spring 134 are respectively abutted against the lower surface of the limit plate 133 and the guide rod 132, and under the action of the spring 134, the other end of the guide rod 132 is pressed against the circumferential surface of the eccentric wheel 122.

[0045] That is, the spring 134 is sleeved on the guide rod 132, and the two ends of the spring 134 are in contact with the lower surface of the guide rod 132 and the limit plate 133 respectively, and the spring 134 is in a compressed state, so that the guide rod 132 is pressed against the peripheral surface of the eccentric wheel 122. When the eccentric wheel 122 drives the guide rod 132 to move upward, the spring 134 is further compressed, the eccentric wheel 122 continues to rotate, and the guide rod 132 moves downward under the action of gravity and the restoring force of the spring 134. At this time, the spring 134 gradually recovers its deformation, providing the guide rod 132 with an elastic force to move downward, so as to help the screening assembly 131 to quickly reset, which helps to increase the vibration frequency of the screening assembly 131, ensure the amplitude of the vibration of the screening assembly 131, and ensure the screening efficiency of the slag screening device 100.

[0046] After the present application is designed in this way, multiple screening mechanisms 130 can be driven to vibrate simultaneously by one motor 121, which simplifies the structure of the slag screening device 100 to a certain extent and helps to save the manufacturing cost of the slag screening device 100.

[0047] In some embodiments, such as Figure 3 As shown, the guide rod 132 includes a guide rod body 1321 and a stop plate 1322, the upper end of the guide rod body 1321 is connected to the lower end of the screening assembly 131, and the lower end of the guide rod body 1321 is connected to the stop plate 1322; the spring 134 is sleeved on the guide rod body 1321, and the two ends of the spring 134 act on the lower surface of the limit plate 133 and the upper surface of the stop plate 1322 respectively.

[0048] After such design, the guide rod body 1321 extends into the slide hole 133a, the stop plate 1322 is located below the limit plate 133, and the spring 134 is sleeved on the guide rod body 1321 and located between the stop plate 1322 and the limit plate 133. The spring 134 is in a compressed state, and the spring 134 applies a downward force to the stop plate 1322, so that the guide rod 132 can move downward quickly, so as to help the screening assembly 131 to quickly reset. In some embodiments, in order to improve the screening effect of the slag screening device 100, a plurality of screening mechanisms 130 are provided, and the plurality of screening mechanisms 130 are arranged in sequence and spaced apart along the height direction of the screening box 110; the feed port 110b is located above the topmost screening mechanism 130, and the discharge port 110c is located below the bottommost screening mechanism 130, so as to ensure that the slag to be screened entering the feed port 110b is screened in sequence by the plurality of screening assemblies 131 from top to bottom, and finally discharged from the discharge port 110c. It should be noted that, from top to bottom, the apertures on the screening assemblies 131 gradually become The number of waste outlets 110d is consistent with the number of screening mechanisms 130, and multiple waste outlets 110d are arranged in sequence along the height direction of the screening box 110, corresponding to the position of the lower end of each screening component 131, that is, there are multiple waste outlets 110d, which are arranged from bottom to top or from top to bottom along the height direction of the screening box 110, and one screening component 131 corresponds to one waste outlet 110d, and the large-particle slag screened by the screening component 131 is discharged from the waste outlet 110d.

[0049] In some embodiments, the driving mechanism 120 further includes the same number of gears 123 and connecting shafts 124 as the screening mechanism 130, and the plurality of gears 123 and the plurality of eccentric wheels 122 are respectively fixedly mounted on the plurality of connecting shafts 124, that is, one gear 123 and one eccentric wheel 122 are fixedly mounted on one connecting shaft 124; each connecting shaft 124 is rotatably connected to the screening box 110 and is respectively located below each screening assembly 131; the plurality of gears 123 are meshed in sequence, and the motor 121 is transmission-connected to one of the gears 123 to drive each connecting shaft 124 to rotate, so that the connecting shaft 124 can drive the eccentric wheel 122 to rotate. With such a design, when the motor 121 drives any one of the plurality of gears 123 to rotate, it can simultaneously drive the other gears 123 to rotate together, thereby enabling all the connecting shafts 124 to rotate. Because the eccentric wheel 122 and the connecting shaft 124 are fixedly connected, the connecting shaft 124 can drive the eccentric wheel 122 to rotate together. When the eccentric wheel 122 rotates, the screening assembly 131 will swing up and down around the screening box 110, so that its height changes back and forth, so that the screening assembly 131 vibrates, so that the slag to be screened on the screening assembly 131 is vibrated and screened. After such a design, the slag screening device 100 can drive all the screening assemblies 131 to vibrate at the same time through only one motor 121 to achieve the screening function, without the need for each screening assembly 131 to be equipped with a vibration motor as in the related art. The structure of the slag screening device 100 is further simplified, which helps to save the manufacturing cost of the slag screening device 100.

[0050] In some embodiments, the motor 121 and the gear 123 are both located outside the screening chamber 110a. During screening, the slag is located inside the screening chamber 110a, and there are many impurities such as dust or particles inside the screening chamber 110a. Placing the motor 121 and the gear 123 outside the screening chamber 110a can, to a certain extent, prevent impurities such as dust inside the screening chamber 110a from adhering to the motor 121 or the gear 123, which helps to ensure the normal operation of the motor 121 and the gear 123, ensure the stable operation of the slag screening device 100, and extend its service life.

[0051] In some embodiments, Figure 2As shown, the slag screening device 100 also includes a protective shell 140, which is located outside the screening chamber 110a and fixedly connected to the screening box 110, and the motor 121 and the gear 123 are located in the protective shell 140. After such a design, the protective shell 140 and the screening box 110 can be enclosed to form a closed or relatively closed chamber, so that the motor and the gear 123 are located in the chamber, which to a certain extent avoids external dust and other impurities from adhering to the motor 121 or the gear 123, which helps to ensure the stable operation of the slag screening device 100. In addition, after such a design, due to the effect of the protective shell 140, the operator cannot directly contact the motor 121 or the gear 123, which to a certain extent also ensures the safety of the operation of the slag screening device 100.

[0052] In some embodiments, the protective shell 140 and the screening box 110 are detachably connected, such as by snap connection or bolt connection, so as to facilitate the maintenance of the motor 121, the gear 123, etc. The screening assembly 131 has various forms and structures, which are not limited in this application. Generally, it includes a screening net 1311, so that small particles of slag can pass through, while large particles of slag cannot pass through, thereby achieving the screening function. In some embodiments, such as Figure 2 and Figure 5 As shown, the screening assembly 131 includes a screening net 1311, a first fixed frame 1312 and a second fixed frame 1313. The first fixed frame 1312 and the second fixed frame 1313 are located on both sides of the inclination direction of the screening net 1311 and are detachably connected to the screening net 1311. The first fixed frame 1312 is hinged to the cavity wall of the screening box 110, and the second fixed frame 1313 corresponds to the position of the waste outlet 110d.

[0053] In some embodiments, the second fixed frame 1313 is partially located at the waste outlet 110d so that the large-particle slag obtained by screening from the screening assembly 131 can be discharged from the waste outlet 110d. The first fixed frame 1312 and the second fixed frame 1313 support and fix the screening net 1311. As the slag screening device 100 is used, the screening net 1311 gradually wears and deforms. The screening net 1311 is a consumable material. To ensure the screening efficiency and effect, the screening net 1311 needs to be replaced every once in a while. The screening net 1311 is detachably connected to the first fixed frame 1312 and the second fixed frame 1313, so that when the screening net 1311 is replaced, there is no need to replace the first fixed frame 1312 and the second fixed frame 1313, which helps to save the cost of replacement.

[0054] There are various ways to detachably connect the screening net 1311 and the first fixing frame 1312 and the second fixing frame 1313, which may be snap connections, bolt connections, etc.

[0055] In some embodiments, Figure 4As shown, a first protrusion 13111 is provided on the screening net 1311, a first groove 13121 is provided on the first fixing frame 1312, the first protrusion 13111 is located in the first groove 13121, and the first protrusion 13111 and the first fixing frame 1312 are detachably connected by a first bolt 135 penetrating the side wall of the first groove 13121.

[0056] That is to say, a threaded through hole is provided on the first fixing frame 1312, the threaded through hole is connected to the first groove 13121, and the first bolt 135 is threadedly connected to the threaded through hole; as the first bolt 135 is extended, the first bolt 135 abuts against the first protrusion 13111, so that the first protrusion 13111 is tightly abutted against the inner wall of the first groove 13121; alternatively, a threaded hole (either a blind hole or a through hole) is also provided on the first protrusion 13111, and the first bolt 135 is also threadedly connected to the threaded hole on the first protrusion 13111, so that the first protrusion 13111 is fixed.

[0057] In some embodiments, Figure 3 As shown, a second protrusion 13112 is also provided on the screening net 1311, and a second groove 13131 is provided on the second fixing frame 1313. The second protrusion 13112 is located in the second groove 13131, and the second protrusion 13112 and the second fixing frame 1313 are detachably connected by a second bolt 136 that passes through the side wall of the second groove 13131.

[0058] That is to say, a threaded through hole is provided on the second fixing frame 1313, the threaded through hole is connected to the second groove 13131, and the second bolt 136 is threadedly connected to the threaded through hole; as the second bolt 136 is extended, the second bolt 136 abuts against the second protrusion 13112, so that the second protrusion 13112 is tightly abutted against the inner wall of the second groove 13131; alternatively, a threaded hole (either a blind hole or a through hole) is also provided on the second protrusion 13112, and the second bolt 136 is also threadedly connected to the threaded hole on the second protrusion 13112, so that the second protrusion 13112 is fixed.

[0059] like Figure 3 As shown, in some embodiments, threaded through holes are provided on the first protrusion 13111 and the second protrusion 13112 , the first bolt 135 is also threadedly connected to the first protrusion 13111 , and the second bolt 136 is also threadedly connected to the second protrusion 13112 .

[0060] The number of screening components 131 is not limited in this application. To a certain extent, the more screening components 131 are provided, the better the screening effect of the slag screening device 100 is. Figure 2As shown, the slag screening device 100 is provided with three screening assemblies 131 , which reduces the number of screening assemblies 131 while ensuring the screening effect.

[0061] like Figure 2 As shown, in some embodiments, the lower portion of the screening chamber 110a is conical, and the discharge port 110c is disposed at the lowest point of the screening chamber 110a, so that the slag obtained after screening can be gathered at the discharge port 110c for easy discharge from the discharge port.

[0062] like Figure 1 and Figure 2 As shown, in some embodiments, the slag screening device 100 further includes a guide plate 150 located at the waste outlet 110d, and the guide plate 150 is located outside the screening chamber 110a and connected to the screening box 110. Specifically, the guide plate 150 is arranged in an inclined manner, and the side fixedly connected to the screening box 110 is higher than the side away from the screening box 110, so that after the large particles of slag discharged from the waste outlet 110d fall on the guide plate 150, they can slide downward along the inclined direction under the action of gravity, and finally fall from the side away from the screening box 110.

[0063] like Figure 1 As shown, in some embodiments, the screening box 110 includes a box body 111 and a box cover 112. The box cover 112 is detachably connected to the box body 111 and forms a screening chamber 110a with the box body 111. With this design, the screening chamber 110a can be opened by removing the box cover 112, so as to facilitate the installation of the screening assembly 131. Figure 1 As shown, in some embodiments, the left side of the box cover 112 is rotatably connected to the box body 111, and the right side of the box cover 112 is clamped with the box body 111. After the right side of the box cover 112 is unclamped from the box body 111, the box cover 112 can be rotated to open the screening chamber 110a.

[0064] The working principle of the slag screening device 100 of the present application is as follows:

[0065] The motor 121 is started, and the motor 121 drives the gear 123 to rotate, and then drives the connecting shaft 124 and the eccentric wheel 122 to rotate. Because the eccentric wheel 122 is in contact with the guide rod 132, the guide rod 132 is driven to move upward, and the guide rod 132 moves downward under the action of gravity and the spring 134, and then the screening assembly 131 vibrates. The slag to be screened is added into the screening chamber 110a through the feed port 110b, and the slag to be screened is screened by multiple screening assemblies 131 in sequence, and the screened large particles are discharged from the waste outlet 110d, and then transferred to the designated position through the guide plate 150; because the lower part of the screening chamber 110a is conical, the small particles of slag obtained by screening are gathered at the discharge port 110c, and then discharged from the discharge port 110c. When the screening mesh 1311 of the screening assembly 131 is damaged and needs to be replaced, open the box cover 112, loosen the first bolt 135 and the second bolt 136, remove the damaged screening mesh 1311 from the first fixing frame 122 and the second fixing frame 123, then replace it with a new screening mesh 1311, tighten the first bolt 135 and the second bolt 136, and finally close the box cover 112.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0067] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0068] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A slag screening device, characterized in that: include: A screening box, comprising a screening cavity and a feed port, a discharge port and a waste material outlet connected to the screening cavity; A driving mechanism, comprising a motor and an eccentric wheel, wherein the eccentric wheel is located in the screening chamber and connected to the output end of the motor; The screening mechanism is located in the screening chamber and above the eccentric wheel; the screening mechanism comprises a screening assembly, a guide rod, a limit plate and a spring; the screening assembly is tilted, the upper end is hinged to the screening box, and the lower end corresponds to the waste outlet position; the feed port and the discharge port are respectively located above and below the screening mechanism, and the eccentric wheel is located below the screening assembly; One end of the guide rod is connected to the lower end of the screening assembly, the limit plate is located between the eccentric wheel and the screening assembly, the limit plate is provided with a sliding hole for the guide rod to extend into along the vertical reciprocating movement, the spring is sleeved outside the guide rod, the two ends of the spring act on the lower surface of the limit plate and the guide rod respectively, under the restoring action of the spring, the other end of the guide rod is pressed against the circumferential surface of the eccentric wheel.

2. The slag screening device according to claim 1, characterized in that: The guide rod includes a guide rod body and a stop plate, the upper end of the guide rod body is connected to the lower end of the screening assembly, and the lower end of the guide rod body is connected to the stop plate; the spring is sleeved on the guide rod body, and the two ends of the spring act on the lower surface of the limit plate and the upper surface of the stop plate respectively.

3. The slag screening device according to claim 1, characterized in that: There are multiple screening mechanisms, and the multiple screening mechanisms are arranged in sequence at intervals along the height direction of the screening box; the feed port is located above the uppermost screening mechanism, and the discharge port is located below the lowermost screening mechanism; the number of the waste outlets is consistent with the number of the screening mechanisms, and the multiple waste outlets are arranged in sequence at intervals along the height direction of the screening box, respectively corresponding to the lower end position of each screening component.

4. The slag screening device according to claim 3, characterized in that: The driving mechanism also includes gears and connecting shafts whose number is the same as that of the screening mechanism. The multiple gears and the multiple eccentric wheels are respectively fixedly mounted on the multiple connecting shafts. Each of the connecting shafts is rotatably connected to the screening box and is respectively located below each screening component. The multiple gears are meshed in sequence, and the motor is transmission-connected to one of the gears to drive each of the connecting shafts to rotate, so that the connecting shaft can drive the eccentric wheel to rotate.

5. The slag screening device according to claim 4, characterized in that: The slag screening device also includes a protective shell, which is located outside the screening chamber and fixedly connected to the screening box. The motor and the gear are located inside the protective shell.

6. The slag screening device according to any one of claims 1 to 5, characterized in that: The screening assembly includes a screening net, a first fixed frame and a second fixed frame, the first fixed frame and the second fixed frame are located on both sides of the inclination direction of the screening net, and are detachably connected to the screening net; the first fixed frame is hinged to the cavity wall of the screening box, and the second fixed frame corresponds to the waste outlet position.

7. The slag screening device according to claim 6, characterized in that: The screening net is provided with a first protrusion, the first fixing frame is provided with a first groove, the first protrusion is located in the first groove, and the first protrusion and the first fixing frame are detachably connected by a first bolt penetrating through a side wall of the first groove; The screening net is also provided with a second protrusion, the second fixing frame is provided with a second groove, the second protrusion is located in the second groove, and the second protrusion and the second fixing frame are detachably connected by a second bolt penetrating through a side wall of the second groove.

8. The slag screening device according to any one of claims 1 to 5, characterized in that: The lower part of the screening chamber is conical, and the discharge port is arranged at the lowest point of the screening chamber.

9. The slag screening device according to any one of claims 1 to 5, characterized in that: The slag screening device also includes a material guide plate located at the waste material outlet, and the material guide plate is located outside the screening chamber and connected to the screening box.

10. The slag screening device according to any one of claims 1 to 5, characterized in that: The screening box comprises a box body and a box cover, wherein the box cover is detachably connected to the box body and encloses the screening chamber together with the box body.

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