Cooling and screening device and granulation equipment

Abstract

The utility model provides a cooling and screening device and granulation equipment, and relates to the technical field of battery diaphragm production equipment. The cooling and screening device comprises a machine body comprising a machine frame and a vibrator, a conveying groove spirally formed along the machine frame, and a material crushing groove spirally formed along the machine frame. The vibrator is arranged on the machine frame, a feeding port and a discharging port are formed in the conveying groove, at least part of the conveying groove is a screen, the material crushing groove and the screen are connected to jointly define a material crushing cavity, an air inlet and a crushed material outlet are formed in the material crushing groove, and the air inlet and the crushed material outlet are communicated with the material crushing cavity. And the air inlet is used for spraying cooling airflow which flows through the crushed material cavity and reaches the crushed material outlet. According to the cooling and screening device provided by the invention, cooling and vibratory screening of granules can be simultaneously carried out, the operation time is saved, and thus the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery separator production equipment, and particularly relates to a cooling and screening device and a granulating equipment. BACKGROUND

[0002] The information disclosed in this Background section is only for the purpose of enhancing the understanding of the general background of the present disclosure and does not necessarily constitute prior art.

[0003] The separator is one of the key inner components of a battery, which mainly functions to separate the positive and negative electrode sheets to prevent short circuiting caused by contact between the two electrodes and allow electrolyte ions to pass through. The raw materials of dry separators and wet separators are single, and the edge and corner scraps thereof can be directly recycled through a granulation recycling process. The main production process flow includes: crushing, extrusion, granulation, cooling, vibration screening, metal separation, etc. Since the cooling and vibration screening processes need to be sequentially performed on different devices, the granules formed by the crushing, extrusion and granulation process need to be cooled first and then vibration screened, which consumes a long time and thus leads to low production efficiency. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the purpose of the present application is to provide a cooling and screening device and a granulating equipment, which aims to solve the technical problem of low production efficiency caused by the fact that the cooling and vibration screening of separator granules need to be sequentially performed on different devices.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0006] In a first aspect, the embodiments of the present application provide a cooling and screening device, comprising:

[0007] A machine body comprising a rack and a vibrator arranged on the rack;

[0008] A conveying groove arranged helically along the rack, the conveying groove being provided with an inlet and an outlet, and at least a part of the conveying groove being a screen;

[0009] A crushing groove arranged helically along the rack, the crushing groove being connected with the screen to jointly define a crushing cavity, the crushing groove being provided with an air inlet and a crushing outlet, the air inlet and the crushing outlet being respectively communicated with the crushing cavity, and the air inlet being configured to spray a cooling air flow flowing through the crushing cavity and reaching the crushing outlet.

[0010] In one of the embodiments of the first aspect, the crushing groove comprises a plurality of crushing groove bodies, adjacent two of the crushing groove bodies being detachably connected, and each of the crushing groove bodies being detachably connected with the screen.

[0011] In one embodiment of the first aspect, a portion of the multiple material trough bodies is detachably connected to the screen via a locking assembly. The locking assembly includes a movable clamping member, a fixed clamping member, and a first connecting member. The fixed clamping member is connected between the first connecting member and the screen, and the movable clamping member is rotatably connected to the first connecting member. When the movable clamping member rotates relative to the first connecting member in a preset direction to a preset angle, the movable clamping member and the fixed clamping member jointly clamp the material trough body.

[0012] In one embodiment of the first aspect, the locking assembly further includes a second connector, a shaft, and an elastic member. The movable clamping member is hinged to the first connector via the shaft. The second connector is connected to the first connector. The elastic member is connected to the fixed clamping member and the second connector respectively, for driving the movable clamping member to rotate around the shaft in the preset direction.

[0013] In one embodiment of the first aspect, the elastic element is a cylindrical spring, the movable clamping member is provided with a first limiting part, the second connecting member is provided with a second limiting part, one end of the cylindrical spring is sleeved on the first limiting part, and the other end of the cylindrical spring is sleeved on the second limiting part.

[0014] In one embodiment of the first aspect, the locking assembly further includes a threaded fastener that passes through the movable clamping member and the first connecting member respectively, and is threadedly connected to the first connecting member.

[0015] In one embodiment of the first aspect, a portion of the multiple crushing trough bodies is provided with a first stepped connecting portion and a second stepped connecting portion, and the screen is provided with a third stepped connecting portion and a fourth stepped connecting portion, wherein the first stepped connecting portion and the third stepped connecting portion are engaged, and the second stepped connecting portion and the fourth stepped connecting portion are engaged.

[0016] In one embodiment of the first aspect, the screen includes a plurality of screen bodies, one of two adjacent screen bodies is provided with a fifth step-shaped connecting portion, and the other is provided with a sixth step-shaped connecting portion, the fifth step-shaped connecting portion and the sixth step-shaped connecting portion being engaged to achieve a detachable connection between the two adjacent screen bodies.

[0017] In one embodiment of the first aspect, the air inlet includes a plurality of air inlet holes, each of which is in communication with the crushing chamber, and the diameter of the air inlet hole closer to the feed inlet is smaller than the diameter of the air inlet hole farther from the feed inlet.

[0018] In one embodiment of the first aspect, the cooling screening device further includes an airflow channel with an airflow passage, the airflow channel being disposed on the frame or the crushing trough, and each of the air inlets communicating with the airflow passage.

[0019] Secondly, embodiments of this application provide a granulation device, including a granulation device, a metal separation device, a collection device, and a cooling screening device as described in any of the embodiments of the first aspect above. The output port of the granulation device is connected to the feed port of the cooling screening device, the discharge port of the cooling screening device is connected to the input port of the metal separation device, and the output port of the metal separation device is connected to the input port of the collection device.

[0020] The beneficial effects of this application are as follows:

[0021] This application provides a cooling screening device. When using this device, diaphragm granules are fed through the inlet. Under the action of a vibrator, the conveying trough transports the granules from the inlet to the outlet. Granules meeting the standards are screened through the screen in the conveying trough, while the screened-out fragments fall into the crushing chamber defined by the crushing trough and the screen. Under the action of cooling airflow injected from the air inlet, the fragments are blown along the crushing trough to the crushing outlet for output. Simultaneously, the cooling airflow passes through the screen in the crushing chamber to cool the granules. The cooled and screened granules are then output through the outlet. This process achieves simultaneous granule cooling and vibratory screening in the same device, saving operation time and thus improving production efficiency.

[0022] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This paper shows a schematic diagram of the granulation apparatus from one perspective in one embodiment of the present application.

[0025] Figure 2 This invention provides a schematic diagram of the granulation apparatus from another perspective in one embodiment of the present application.

[0026] Figure 3 A schematic diagram of the structure of a cooling screening device in one embodiment of this application is shown;

[0027] Figure 4 A simplified structural diagram of the conveying trough and the crushing trough in one embodiment of this application is shown;

[0028] Figure 5 This illustration shows a schematic diagram of the assembly structure of a screen and a portion of the crushing trough body in one embodiment of this application;

[0029] Figure 6 It shows Figure 5 Enlarged structural diagram of region A in the middle;

[0030] Figure 7 This illustration shows a schematic diagram of the assembly structure of the screen and a portion of the crushing trough body in another embodiment of this application;

[0031] Figure 8 It shows Figure 7 A magnified structural diagram of region B in the middle;

[0032] Figure 9 This illustration shows a schematic diagram of the assembly structure of the screen and another part of the crushing trough body in one embodiment of this application;

[0033] Figure 10 A partial structural schematic diagram of a screen is shown in one embodiment of this application.

[0034] Explanation of key component symbols:

[0035] 1000-Pelletizing equipment; 100-Cooling and screening device; 110-Machine body; 111-Frame; 112-Vibrator; 120-Conveying trough; 121-Inlet; 122-Outlet; 123-Screen; 1231-Screen body; 124-Third step-shaped connection; 125-Fourth step-shaped connection; 126-Fifth step-shaped connection; 127-Sixth step-shaped connection; 130-Crushing trough; 131-Crushing trough body; 132-Crushing chamber; 133-Air inlet; 1331-Air inlet hole; 134-Crushing outlet; 135-First stepped connecting part; 136-Second stepped connecting part; 140-Locking assembly; 141-Modible clamping part; 1411-First limiting part; 142-Fixed clamping part; 143-First connecting part; 144-Second connecting part; 1441-Second limiting part; 145-Shaft; 146-Elastic part; 147-Threaded fastener; 150-Airflow groove; 151-Airflow channel; 200-Granulation device; 300-Metal separation device; 400-Collection device; X-Conveying direction; Y-Flow direction; Z-Preset direction. Detailed Implementation

[0036] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0037] In the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0038] Furthermore, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this application, the terms "first," "second," etc., are used to distinguish different objects and should not be construed as indicating or implying a specific order or hierarchy, or implicitly specifying the number of technical features indicated. Therefore, a feature marked "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0040] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] The separator is one of the key internal components of a battery. Its main function is to separate the positive and negative electrodes to prevent short circuits caused by contact between the two electrodes, and to allow electrolyte ions to pass through. Both dry-process and wet-process separators use simple raw materials, and their scraps can be directly recycled through granulation processes. The main production processes include: crushing, extrusion, and granulation (crushing, extruding, and cutting scraps into granules), cooling (eliminating the heat generated by crushing, extrusion, and cutting), vibrating screening (screening out granules that meet standards), and metal separation (removing metal substances from the granules).

[0042] Because the cooling and vibrating screening processes need to be performed sequentially on different devices—that is, the granules formed in the crushing, extrusion, and granulation process need to be cooled before being vibrated and screened—the process is time-consuming, resulting in low production efficiency. Furthermore, the cooling method used in the cooling process is water cooling, which is prone to leakage, potentially contacting the granules and affecting their quality. Additionally, the debris removed during the vibrating screening process easily accumulates and clogs, making it difficult to clean.

[0043] To solve the above technical problems, such as Figures 1 to 3 As shown, in a first aspect, embodiments of this application provide a cooling and screening device 100, which is mainly used in a granulation equipment 1000 to achieve cooling and vibratory screening of diaphragm granules.

[0044] like Figure 3 and Figure 4 As shown, the cooling screening device 100 provided in this embodiment includes: a body 110, a conveying trough 120 and a crushing trough 130.

[0045] The machine body 110 includes a frame 111 and a vibrator 112 mounted on the frame 111; a conveying trough 120 is spirally arranged along the frame 111, and the conveying trough 120 is provided with an inlet 121 and an outlet 122, and at least a portion of the conveying trough 120 is a screen 123; a crushing trough 130 is spirally arranged along the frame 111, and the crushing trough 130 and the screen 123 are connected to jointly define a crushing chamber 132, and the crushing trough 130 is provided with an air inlet 133 and a crushing outlet 134, which are respectively connected to the crushing chamber 132. The air inlet 133 is used to spray out a cooling airflow that flows through the crushing chamber 132 and reaches the crushing outlet 134.

[0046] It should be noted that "at least a portion of the conveying trough 120 is a screen 123" can be understood to include two situations: First, a portion of the conveying trough 120 is made of screen 123, for example, the bottom wall of the conveying trough 120 is made of screen 123, or the bottom wall and a portion of the side wall are made of screen 123; Second, the entire conveying trough 120 is made of screen 123. No specific limitation is made here regarding the extent to which the conveying trough 120 has screen 123.

[0047] It is understood that when using the cooling screening device 100 provided in this embodiment, diaphragm granules are input through the feed inlet 121. Under the action of the vibrator 112, the conveying trough 120 conveys the granules along the direction from the feed inlet 121 to the discharge outlet 122. The granules that meet the standards are screened through the screen 123 of the conveying trough 120. The screened-out fragments fall into the crushing chamber 132 defined by the crushing trough 130 and the screen 123. Under the action of the cooling airflow sprayed from the air inlet 133, the fragments are blown along the crushing trough 130 to the crushing outlet 134 for output. At the same time, the cooling airflow cools the granules through the screen 123 from the crushing chamber 132. The cooled and screened granules are output through the discharge outlet 122.

[0048] This process enables simultaneous cooling and vibratory screening of granules within the same device, saving operation time and thus improving production efficiency. Furthermore, because air cooling is used, compared to water cooling, even if leakage occurs, it will not significantly impact the quality of the granules.

[0049] For example, the vibrator 112 may include a first vibration motor and a second vibration motor. According to the self-synchronization principle of the two vibration motors, the first vibration motor and the second vibration motor generate excitation force, which forces the frame 111 to perform a spatial composite vibration of horizontal circular motion and upward vertical motion, so that the granules in the conveying trough 120 make a circular throwing motion, thereby moving along the conveying trough 120 from bottom to top.

[0050] like Figure 3 and Figure 4 As shown, in one embodiment, the conveying trough 120 is provided with a feed inlet 121 and a discharge outlet 122 from bottom to top, the crushing trough 130 is located below the conveying trough 120, and the crushing outlet 134 and the feed inlet 121 are located on the same side.

[0051] It should be noted that "the conveying trough 120 is provided with an inlet 121 and an outlet 122 from bottom to top" and "the crushed material outlet 134 and the inlet 121 are located on the same side" can be understood as: the inlet 121 and the crushed material outlet 134 are both located below the outlet 122; "the conveying trough 120 is provided with an inlet 121 and an outlet 122 from bottom to top, and the air inlet 133 is used to spray out cooling airflow that flows from top to bottom through the crushing chamber 132 and reaches the crushed material outlet 134" can be understood as: the flow direction Y of the cooling airflow is opposite to the conveying direction X of the granules.

[0052] It is understood that when using the cooling screening device 100 provided in this embodiment, diaphragm granules are input through the feed inlet 121. Under the action of the vibrator 112, the conveying trough 120 conveys the granules from bottom to top, and the granules that meet the standards are screened through the screen 123 of the conveying trough 120. The screened-out fragments fall into the crushing chamber 132 defined by the crushing trough 130 and the screen 123. Under the action of the cooling airflow sprayed from the air inlet 133, the fragments are blown along the crushing trough 130 to the crushing outlet 134 for discharge. At the same time, the cooling airflow cools the granules through the screen 123 from the crushing chamber 132. The cooled and screened granules are output through the discharge outlet 122.

[0053] Of course, in the above embodiment, the conveying trough 120 may also have an inlet 121 and an outlet 122 arranged sequentially from top to bottom to convey the granules from top to bottom. Alternatively, the flow direction Y of the cooling airflow may be the same as the conveying direction X of the granules, for example, when the conveying trough 120 has an inlet 121 and an outlet 122 arranged sequentially from bottom to top, and the crushed material outlet 134 and the outlet 122 are located on the same side; or when the conveying trough 120 has an inlet 121 and an outlet 122 arranged sequentially from top to bottom, and the crushed material outlet 134 and the outlet 122 are located on the same side. No specific limitations are made here regarding the flow direction Y of the airflow, the conveying direction of the granules, or the relationship between the two.

[0054] like Figure 3 , Figure 5 , Figure 7 and Figure 9 As shown, in one embodiment, the shredder 130 includes a plurality of shredder bodies 131, which are detachably connected to each other, and each shredder body 131 is detachably connected to the screen 123.

[0055] Understandably, a small amount of debris tends to adhere to the walls of the debris trough 130 due to electrostatic attraction, making it difficult for the cooling airflow to blow it to the debris outlet 134. Therefore, a detachable connection is achieved between the debris trough 130 and the screen 123 through a detachable connection between adjacent debris trough bodies 131 and each debris trough body 131 and the screen 123. This facilitates the removal of the debris trough 130 to clean up any remaining debris, reducing the possibility of debris accumulation and blockage.

[0056] For example, the detachable connection between two adjacent crushing trough bodies 131 can be a bolt connection, a snap-fit ​​connection, a quick-release connection, etc., and no specific limitation is made here.

[0057] like Figure 5 and Figure 7As shown, further, a portion of the multiple material trough bodies 131 are detachably connected to the screen 123 via a locking assembly 140. The locking assembly 140 includes a movable clamping member 141, a fixed clamping member 142, and a first connecting member 143. The fixed clamping member 142 is connected between the first connecting member 143 and the screen 123, and the movable clamping member 141 is rotatably connected to the first connecting member 143. When the movable clamping member 141 rotates relative to the first connecting member 143 in a preset direction Z to a preset angle, the movable clamping member 141 and the fixed clamping member 142 jointly clamp the material trough body 131.

[0058] It is understandable that when the movable clamping member 141 is rotated along the preset direction Z to a preset angle, the movable clamping member 141 and the fixed clamping member 142 jointly clamp the crushing trough body 131, thereby preventing the crushing trough body 131 from detaching from the screen 123; when the movable clamping member 141 is rotated in the opposite direction to the preset direction Z, the movable clamping member 141 detaches from the crushing trough body 131, thereby allowing the crushing trough body 131 to detach from the screen 123.

[0059] like Figure 5 and Figure 6 As shown, in a specific embodiment, the locking assembly 140 further includes a second connector 144, a shaft 145, and an elastic member 146. The movable clamping member 141 is hinged to the first connector 143 via the shaft 145. The second connector 144 is connected to the first connector 143. The elastic member 146 is connected to the fixed clamping member 142 and the second connector 144 respectively, and is used to drive the movable clamping member 141 to rotate around the shaft 145 in a preset direction Z.

[0060] It should be noted that "the movable clamping member 141 is hinged to the first connecting member 143 via the shaft member 145" can be understood as: the movable clamping member 141 can rotate relative to the first connecting member 143 about the axis of the shaft member 145.

[0061] It is understandable that when an external force is applied to make the movable clamping member 141 rotate in the opposite direction to the preset direction Z, the movable clamping member 141 overcomes the elastic force of the elastic member 146 to disengage from the crushing trough body 131; when the external force is removed, the movable clamping member 141 rotates and resets around the shaft member 145 in the preset direction Z under the action of the elastic force of the elastic member 146, so that the movable clamping member 141 and the fixed clamping member 142 jointly clamp the crushing trough body 131.

[0062] like Figure 6 As shown, by way of example, the elastic member 146 is a cylindrical spring, the movable clamping member 141 is provided with a first limiting part 1411, the second connecting member 144 is provided with a second limiting part 1441, one end of the cylindrical spring is sleeved on the first limiting part 1411, and the other end of the cylindrical spring is sleeved on the second limiting part 1441.

[0063] It is understandable that by setting the first limiting part 1411 and the second limiting part 1441, the two ends of the cylindrical spring are radially limited, so that the cylindrical spring can be stably extended or compressed.

[0064] Of course, for the above example, the elastic element 146 can also be a spring sheet or an elastic arm, which can also drive the movable clamping element 141 to rotate and reset. Here, no specific restrictions are placed on the type of elastic element 146.

[0065] like Figure 7 and Figure 8 As shown, in another specific embodiment, the locking assembly 140 further includes a threaded fastener 147, which is respectively passed through the movable clamping member 141 and the first connecting member 143, and is threadedly connected to the first connecting member 143.

[0066] For example, the threaded fastener 147 can be a screw, bolt, bolt or other element with a thread, without any specific limitation.

[0067] It is understandable that, compared to the embodiment in which the locking assembly 140 includes a shaft 145 and an elastic member 146, this embodiment omits the design of the shaft 145 and the elastic member 146, and uses a threaded fastener 147 to make the movable clamping member 141 rotatably connected to the first connecting member 143. In this way, the rotation direction of the movable clamping member 141 can be controlled by turning the threaded fastener 147, so that the locking assembly 140 can switch between the clamping and non-clamping states, and the detachable connection between the crushing trough body 131 and the screen 123 can also be realized.

[0068] like Figure 9 As shown, furthermore, a portion of the multiple material trough bodies 131 are provided with a first stepped connecting portion 135 and a second stepped connecting portion 136, and the screen 123 is provided with a third stepped connecting portion 124 and a fourth stepped connecting portion 125. The first stepped connecting portion 135 and the third stepped connecting portion 124 are engaged, and the second stepped connecting portion 136 and the fourth stepped connecting portion 125 are engaged. This allows for a detachable connection between a portion of the material trough body 131 and the screen 123, facilitating the removal of the material trough 130 for cleaning of residual material. Figure 5 , Figure 6 and Figure 9As shown, in one specific embodiment, a portion of the multiple slag trough bodies 131 are detachably connected to the screen 123 via a locking assembly 140. Another portion of the slag trough bodies 131 is provided with a first stepped connecting portion 135 and a second stepped connecting portion 136. The screen 123 is provided with a third stepped connecting portion 124 and a fourth stepped connecting portion 125. The first stepped connecting portion 135 and the third stepped connecting portion 124 are engaged, and the second stepped connecting portion 136 and the fourth stepped connecting portion 125 are engaged. This achieves a detachable connection between a portion of the slag trough bodies 131 and the screen 123 via locking with the locking assembly 140, and a detachable connection between the other portion of the slag trough bodies 131 and the screen 123 via the stepped connecting portions.

[0069] like Figure 10 As shown, in one embodiment, the screen 123 includes multiple screen bodies 1231. One of two adjacent screen bodies 1231 is provided with a fifth stepped connecting portion 126, and the other is provided with a sixth stepped connecting portion 127. The fifth stepped connecting portion 126 and the sixth stepped connecting portion 127 are engaged to achieve a detachable connection between two adjacent screen bodies 1231. This facilitates the removal of the screen 123 from the frame 111 for replacement or cleaning of residual particles on the screen 123.

[0070] like Figure 3 As shown, in one embodiment, the air inlet 133 includes a plurality of air inlet holes 1331, each of which is connected to the crushing chamber 132. The diameter of the air inlet holes 1331 closer to the feed inlet 121 is smaller than that of the air inlet holes 1331 farther from the feed inlet 121. This results in a situation where the airflow is stronger (the flow rate of the cooling airflow is higher) closer to the feed inlet 121 and weaker (the flow rate of the cooling airflow is lower) farther from the feed inlet 121. Since more crushed material is screened out closer to the feed inlet 121 and less is screened out farther from the feed inlet 121, the design of stronger airflow closer to the feed inlet 121 can better blow the crushed material to the crushing outlet 134 for discharge, thereby further reducing the possibility of crushed material accumulation and blockage.

[0071] like Figure 3As shown, the cooling screening device 100 further includes an airflow channel 150 with an airflow passage 151. The airflow channel 150 is disposed on the frame 111 or the crushing trough 130, and each air inlet 1331 is connected to the airflow passage 151. In this way, the cooling airflow can enter through the airflow passage 151 and then be dispersed into the crushing trough 130 through multiple air inlets 1331 to blow the crushed material from various locations to the crushing outlet 134.

[0072] like Figure 1 and Figure 2 As shown, in a second aspect, embodiments of this application provide a granulation device 1000, including a granulation device 200, a metal separation device 300, a collection device 400, and a cooling screening device 100 as described in any of the embodiments of the first aspect above. The output port of the granulation device 200 is connected to the feed port 121 of the cooling screening device 100, the discharge port 122 of the cooling screening device 100 is connected to the input port of the metal separation device 300, and the output port of the metal separation device 300 is connected to the input port of the collection device 400.

[0073] It is understood that when using the granulation equipment 1000 provided in this embodiment, the scrap material of the diaphragm is crushed, extruded and granulated by the granulation device 200 to make granules. Then, the granules are cooled and vibrated by the cooling and screening device 100 to reduce the temperature of the granules and screen out the standard granules (particle size 4mm to 8mm). Then, the metal separation device 300 removes the metal substances in the granules. After that, the granules are collected by the collection device 400, thereby realizing the recycling of the scrap material of the diaphragm. Moreover, the granules produced by the granulation equipment 1000 provided in this embodiment have a low melt index increment and can retain the physical properties of the diaphragm raw material to a greater extent.

[0074] It should be understood that since the granulation equipment 1000 provided in this embodiment has the cooling screening device 100 in any of the embodiments of the first aspect, it has all the beneficial effects of the cooling screening device 100, which will not be described in detail here.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A cooling screening device, characterized in that, include: The machine body (110) includes a frame (111) and a vibrator (112) disposed on the frame (111); A conveying trough (120) is spirally arranged along the frame (111), and the conveying trough (120) is provided with a feed inlet (121) and a discharge outlet (122). At least a portion of the conveying trough (120) is a screen (123). A crushing trough (130) is spirally arranged along the frame (111). The crushing trough (130) and the screen (123) are connected to jointly define the crushing chamber (132). An air inlet (133) and a crushing outlet (134) are respectively provided on the crushing trough (130). The air inlet (133) and the crushing outlet (134) are respectively connected to the crushing chamber (132). The air inlet (133) is used to spray out the cooling airflow that flows through the crushing chamber (132) and reaches the crushing outlet (134).

2. The cooling screening device according to claim 1, characterized in that, The shredder (130) includes a plurality of shredder bodies (131), which are detachably connected to each other, and each shredder body (131) is detachably connected to the screen (123).

3. The cooling screening device according to claim 2, characterized in that, A portion of the multiple material trough bodies (131) are detachably connected to the screen (123) via a locking assembly (140). The locking assembly (140) includes a movable clamping member (141), a fixed clamping member (142), and a first connecting member (143). The fixed clamping member (142) is connected between the first connecting member (143) and the screen (123). The movable clamping member (141) is rotatably connected to the first connecting member (143). When the movable clamping member (141) rotates relative to the first connecting member (143) in a preset direction (Z) to a preset angle, the movable clamping member (141) and the fixed clamping member (142) together clamp the material trough body (131).

4. The cooling screening device according to claim 3, characterized in that, The locking assembly (140) further includes a second connector (144), a shaft (145), and an elastic member (146). The movable clamping member (141) is hinged to the first connector (143) via the shaft (145). The second connector (144) is connected to the first connector (143). The elastic member (146) is connected to the fixed clamping member (142) and the second connector (144) respectively, and is used to drive the movable clamping member (141) to rotate around the shaft (145) in the preset direction (Z).

5. The cooling screening device according to claim 4, characterized in that, The elastic element (146) is a cylindrical spring. The movable clamping member (141) is provided with a first limiting part (1411), and the second connecting member (144) is provided with a second limiting part (1441). One end of the cylindrical spring is sleeved on the first limiting part (1411), and the other end of the cylindrical spring is sleeved on the second limiting part (1441).

6. The cooling screening device according to claim 3, characterized in that, The locking assembly (140) further includes a threaded fastener (147), which is respectively inserted through the movable clamping member (141) and the first connecting member (143) and is threadedly connected to the first connecting member (143).

7. The cooling screening device according to claim 2, characterized in that, A portion of the multiple crushing trough bodies (131) are provided with a first stepped connecting part (135) and a second stepped connecting part (136), and the screen (123) is provided with a third stepped connecting part (124) and a fourth stepped connecting part (125). The first stepped connecting part (135) and the third stepped connecting part (124) are engaged, and the second stepped connecting part (136) and the fourth stepped connecting part (125) are engaged.

8. The cooling screening device according to any one of claims 1 to 7, characterized in that, The screen (123) includes multiple screen bodies (1231), one of two adjacent screen bodies (1231) is provided with a fifth step-shaped connecting part (126), and the other is provided with a sixth step-shaped connecting part (127). The fifth step-shaped connecting part (126) and the sixth step-shaped connecting part (127) are engaged to realize a detachable connection between two adjacent screen bodies (1231).

9. The cooling screening device according to any one of claims 1 to 7, characterized in that, The air inlet (133) includes a plurality of air inlets (1331), each of which is connected to the crushing chamber (132), and the diameter of the air inlet (1331) near the feed inlet (121) is smaller than the diameter of the air inlet (1331) away from the feed inlet (121).

10. The cooling screening device according to claim 9, characterized in that, The cooling screening device also includes an airflow trough (150) with an airflow channel (151), the airflow trough (150) being disposed on the frame (111) or the crushing trough (130), and each of the air inlets (1331) being connected to the airflow channel (151).

11. A granulation device, characterized in that, The device includes a granulation device (200), a metal separation device (300), a collection device (400), and a cooling screening device according to any one of claims 1 to 10. The output port of the granulation device (200) is connected to the feed port (121) of the cooling screening device, the discharge port (122) of the cooling screening device is connected to the input port of the metal separation device (300), and the output port of the metal separation device (300) is connected to the input port of the collection device (400).

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