Scum cleaning structure for EPP particle surface cleaning
Through the design of the slag filter tank and filter mechanism, the problem of the uncleaned EPP particle surface additive powder is solved, and high cleanliness of EPP particle production is achieved, reducing waste rate and production costs.
Patent Information
- Application Number
- CN202422219872.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-09-11
AI Technical Summary
During the production process of EPP particles, the surface of the particles is covered with additive powder and has not been cleaned, which affects the subsequent welding of foamed particles, resulting in increased molding energy consumption, decreased product quality and high waste rate.
A scum cleaning structure including a slag filter tank and a filtration mechanism is designed, and impurities are filtered using a functional mesh screen and a material push cover to discharge the scum through the overflow pores to improve particle cleanliness.
Effectively clean the scum on the surface of EPP particles, improve particle quality, reduce waste rate, and improve product quality.
Smart Images
Figure CN223300138U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a field, in particular to a scum cleaning structure for cleaning the surface of EPP particles. Background Art
[0002] In the production process of expanded EPP particles, namely expanded polypropylene particles, when the EPP particles come out of the reactor, their surface is covered with additive powder. If the surface is not cleaned, it will affect the subsequent welding of the expanded particles to a certain extent, causing a sharp increase in molding energy consumption, and even abnormal welding of the molded products. The surface appearance and mechanical properties of the final molded product will be affected, resulting in low product quality and a high scrap rate.
[0003] Therefore, in order to solve the above problems, a scum cleaning structure for cleaning the surface of EPP particles is needed, which can obtain qualified EPP particles with high surface cleanliness, improve product quality and reduce scrap rate. Utility Model Content
[0004] In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide a scum cleaning structure for cleaning the surface of EPP particles, which can obtain qualified EPP particles with high surface cleanliness, improve product quality and reduce scrap rate.
[0005] The scum cleaning structure for cleaning the surface of EPP particles of the utility model comprises a filter residue pool and a filtering mechanism, wherein a feed port is provided at the top of the filter residue pool and a discharge port is provided at the bottom of the filter residue pool;
[0006] The side wall of the filter residue pool is provided with a plurality of overflow holes, and the aperture of each overflow hole is smaller than the diameter of the EPP particles to be cleaned;
[0007] The filtering mechanism includes a functional mesh screen and a pushing cover. The functional mesh screen is arranged on the top of the feed inlet. The functional mesh screen has a sieve hole I. The aperture of the sieve hole I is smaller than the diameter of the EPP particles to be cleaned.
[0008] The slag overflow holes are located at the bottom of the functional mesh screen, and a water baffle is provided at the bottom of the functional mesh screen. The water baffle is driven to block or cancel the blocking of several slag overflow holes.
[0009] The water baffle is provided with a functional port, and the water baffle is also driven to connect the functional port with the feed port or the discharge port;
[0010] The pushing cover is arranged in the functional mesh screen, the pushing cover is located at the top of the feed port, and the pushing cover has a sieve hole II, the aperture of the sieve hole II is smaller than the diameter of the EPP particles to be cleaned;
[0011] The circumferential outer edge of the pushing cover is roughly in contact with the circumferential edge of the inner wall of the filter residue pool, and the pushing cover is driven to move in the height direction.
[0012] Furthermore, the feed port is opened on the top side wall of the filter residue pool, and the discharge port is opened on the bottom side wall of the filter residue pool.
[0013] Furthermore, the lowest point of the slag overflow hole is not lower than the lowest point of the feed port.
[0014] Furthermore, the aperture of the sieve material hole I is equal to the aperture of the sieve material hole II.
[0015] Furthermore, the water baffle is fixed to the bottom of the functional mesh screen, the top center of the functional mesh screen is connected to the rotating shaft, and the rotating shaft is further connected to the functional mesh screen through connecting fins;
[0016] The functional mesh screen is connected to a rotating shaft to drive the lifting and rotation.
[0017] Furthermore, a receiving groove is opened at the center of the rotating shaft, and the receiving groove passes through the rotating shaft from top to bottom. A push rod that is driven to extend or shorten is set in the receiving groove. The push rod is connected to the top center of the push cover, and the push cover is driven to rise and fall by the push rod.
[0018] The beneficial effects of the utility model are as follows: the utility model discloses a scum cleaning structure for cleaning the surface of EPP particles. When a preset amount of EPP particles is introduced into the filter residue pool, the feeding can be stopped. At this time, the functional mesh screen is operated to move downward and rotate, and the pushing cover is operated to move downward. On the one hand, the scum is discharged through the scum overflow hole, and on the other hand, the EPP particles are gathered to the position of the discharge port, so that the discharge port and the functional hole are directly opposite, which is conducive to the introduction of purer EPP particles into the preset process in the later stage. After the EPP particles are discharged in the filter residue pool, the pushing cover and the functional mesh screen are reset, the feed port is opened and the above operation is continued to clean the scum mixed in the EPP particles, thereby improving the quality of the EPP particles, improving the product quality, and reducing the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0020] Figure 1 This is a schematic diagram of the structure of the filter mechanism of the utility model above the discharge port;
[0021] Figure 2 This is a schematic diagram of the structure of the filter mechanism of the utility model below the discharge port;
[0022] Figure 3 For this utility model Figure 1 Schematic diagram of the structure at A';
[0023] Figure 4 This is a schematic diagram of the top view of the functional mesh screen of the utility model. DETAILED DESCRIPTION
[0024] Figure 1 This is a schematic structural diagram of the present invention. As shown in the figure, the scum cleaning structure for cleaning the surface of EPP particles in this embodiment includes a filter residue pool 001 and a filtering mechanism. The top of the filter residue pool 001 is provided with a feed inlet 002, and the bottom of the filter residue pool 001 is provided with a discharge outlet 003. The filter residue pool 001 contains a cleaning medium. The cleaning medium is selected from any suitable cleaning medium in the prior art according to the composition of the EPP particle surface additive. The density of the cleaning medium is greater than the density of the EPP particles so that the EPP particles can naturally float on the cleaning medium. The general cleaning medium is water, which will not be described in detail here.
[0025] The feed port 002 is opened on the top side wall of the filter residue pool 001, and the discharge port 003 is opened on the bottom side wall of the filter residue pool 001; and the feed port 002 and the discharge port 003 are arranged opposite to each other, and the feed port 002 of the filter residue pool 001 is connected to the EPP particle feeding channel, so that the EPP particles with additive powder on the surface are transported to the filter residue pool 001 for cleaning; the discharge port 003 of the filter residue pool 001 is connected to the feed port 002 of the next-level processing process, so that the EPP particles that have been cleaned this time are transported to the preset processing process.
[0026] In this embodiment, a plurality of overflow holes 004 are provided on the side wall of the residue pool 001, and the aperture of each overflow hole 004 is smaller than the diameter of the EPP particles to be cleaned, so that floating debris with smaller particle size can be removed through the overflow hole 004, thereby improving the cleanliness of the EPP particles. In the scheme, the lowest point of the overflow hole 004 is not lower than the lowest point of the feed port 002, so that the waste of water when the floating debris is cleaned is reduced to a minimum. Furthermore, the cleaning medium with floating matter flowing out through the overflow hole 004 can be collected and reused to clean the floating matter, thereby reducing resource waste and industrial production costs. More specifically, in this scheme, the plurality of overflow holes 004 provided around the side wall of the residue pool 001 form a group of overflow channels, and three groups of overflow channels are arranged at intervals in the height direction to increase the cleaning efficiency of floating matter, and the overflow channels avoid the position of the feed port 002 so as not to affect the transportation of EPP particles into the residue pool 001.
[0027] In this embodiment, the filtering mechanism includes a functional mesh screen 005 and a push cover 006. The functional mesh screen 005 is arranged on the top of the feed inlet 002. The functional mesh screen 005 has a sieve hole I. The aperture of the sieve hole I is smaller than the diameter of the EPP particles to be cleaned. This allows scum smaller than the EPP particles to pass through the functional mesh screen 005 smoothly, while the EPP particles cannot pass through the functional mesh screen 005 smoothly, thereby effectively filtering impurities.
[0028] The overflow holes 004 are located at the bottom of the functional mesh screen 005. The bottom of the functional mesh screen 005 is provided with a water baffle 007. The water baffle 007 is driven to block or cancel the blocking of several overflow holes 004. By adjusting the water baffle 007, the EPP particles mixed with floating objects can be filtered more purely.
[0029] The water baffle 007 has a functional port 008, and the water baffle 007 is also driven to connect the functional port 008 with the feed port 002 or the discharge port 003, so as not to affect the transportation of EPP particles into the filter residue pool 001;
[0030] More specifically, the water retaining plate 007 is fixed to the bottom of the functional mesh screen 005, and the top center of the functional mesh screen 005 is connected to the rotating shaft 009, where the top center is the top center position on the horizontal plane. The rotating shaft 009 is also connected to the functional mesh screen 005 through a connecting wing 010. As shown in the figure, the rotating shaft 009 is connected to the functional mesh screen 005 through a plurality of connecting wings 010, and the plurality of connecting wings 010 are evenly distributed in the circumference of the rotating shaft 009, and the connecting wings 010, the rotating shaft 009, and the functional mesh screen 005 form a triangular layout structure, which effectively improves the rotation stability and the lifting stability.
[0031] The functional mesh screen 005 is connected to the rotating shaft 009 to drive the lifting and rotation; the rotating shaft 009 drives the water baffle 007 to lift and lower, so that the water baffle 007 can block or cancel the blocking of several slag overflow holes 004, and the rotating shaft 009 drives the water baffle 007 to rotate, so that the water baffle 007 can connect the functional port 008 with the feed port 002 or the discharge port 003; the power source for driving the rotating shaft 009 is realized by relying on existing technology, such as a motor, etc., which will not be repeated here;
[0032] In this embodiment, the pushing cover 006 is arranged in the functional mesh screen 005, and the pushing cover 006 is located at the top of the feed port 002. The pushing cover 006 has a sieve hole II, and the aperture of the sieve hole II is smaller than the diameter of the EPP particles to be cleaned; so that the scum smaller than the EPP particles can pass through the pushing cover 006 smoothly, and the EPP particles cannot pass through the pushing cover 006 smoothly, thereby effectively filtering impurities; further, the aperture of the sieve hole I is equivalent to the aperture of the sieve hole II, which can meet the filtering requirements, is conducive to the same batch production, and reduces costs.
[0033] More specifically, the pushing cover 006 is hidden in the functional mesh screen 005, and the circumferential outer edge of the pushing cover 006 is roughly in contact with the circumferential edge of the inner wall of the filter residue pool 001. The rough contact means that the two are similar in size and appearance, so as to achieve a better function of pushing the EPP particles in a predetermined direction. It will not be repeated here. More accurately, a receiving groove is provided at the center of the rotating shaft 009, and the receiving groove passes through the rotating shaft 009 from top to bottom. A push rod 011 that is driven to extend or shorten is provided in the receiving groove, and the push rod 011 is connected to the top center of the pushing cover 006. The pushing cover 006 is driven to rise and fall by the push rod 011. The push rod 011 can be selected from any one of the existing technologies to achieve the function of lifting and lowering the pushing cover 006. It will not be repeated here.
[0034] The pushing cover 006 is driven to move in the height direction; when a preset amount of EPP particles is introduced into the residue pool 001, the feeding can be stopped. At this time, the functional screen 005 is operated to move downward and rotate, and the pushing cover 006 is operated downward. On the one hand, the scum is discharged through the slag overflow hole 004, and on the other hand, the EPP particles are gathered to the position of the discharge port 003, so that the discharge port 003 and the functional hole are opposite, which is conducive to the introduction of purer EPP particles into the preset process in the later stage. After the EPP particles are discharged in the residue pool 001, the pushing cover 006 and the functional screen 005 are reset, and the feed port 002 is opened to continue the above operation to clean the scum mixed in the EPP particles, improve the quality of the EPP particles, improve the product quality, and reduce the scrap rate.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A scum cleaning structure for cleaning the surface of EPP particles, characterized by: It includes a filter residue pool and a filtering mechanism, wherein a feed port is provided at the top of the filter residue pool and a discharge port is provided at the bottom of the filter residue pool; The side wall of the filter residue pool is provided with a plurality of overflow holes, and the aperture of each overflow hole is smaller than the diameter of the EPP particles to be cleaned; The filtering mechanism includes a functional mesh screen and a pushing cover. The functional mesh screen is arranged on the top of the feed inlet. The functional mesh screen has a sieve hole I. The aperture of the sieve hole I is smaller than the diameter of the EPP particles to be cleaned. The slag overflow holes are located at the bottom of the functional mesh screen, and a water baffle is provided at the bottom of the functional mesh screen. The water baffle is driven to block or cancel the blocking of several slag overflow holes. The water baffle is provided with a functional port, and the water baffle is also driven to connect the functional port with the feed port or the discharge port; The pushing cover is arranged in the functional mesh screen, the pushing cover is located at the top of the feed port, and the pushing cover has a sieve hole II, the aperture of the sieve hole II is smaller than the diameter of the EPP particles to be cleaned; The circumferential outer edge of the pushing cover is roughly in contact with the circumferential edge of the inner wall of the filter residue pool, and the pushing cover is driven to move in the height direction.
2. The scum cleaning structure for cleaning the surface of EPP particles according to claim 1, characterized in that: The feed port is opened on the top side wall of the filter residue pool, and the discharge port is opened on the bottom side wall of the filter residue pool.
3. The scum cleaning structure for cleaning the surface of EPP particles according to claim 1, characterized in that: The lowest point of the slag overflow hole is not lower than the lowest point of the feed port.
4. The scum cleaning structure for cleaning the surface of EPP particles according to claim 1, characterized in that: The aperture of the sieve material hole I is equal to the aperture of the sieve material hole II.
5. The scum cleaning structure for cleaning the surface of EPP particles according to claim 1, characterized in that: The water retaining plate is fixed to the bottom of the functional mesh screen, the top center of the functional mesh screen is connected to the rotating shaft, and the rotating shaft is also connected to the functional mesh screen through connecting fins; The functional mesh screen is connected to a rotating shaft to drive the lifting and rotation.
6. The scum cleaning structure for cleaning the surface of EPP particles according to claim 5, characterized in that: A receiving groove is provided at the center of the rotating shaft, and the receiving groove passes through the rotating shaft from top to bottom. A push rod driven to extend or shorten is provided in the receiving groove, and the push rod is connected to the top center of the push cover, and the push cover is driven to rise and fall by the push rod.