Negative pressure adsorption and impurity removal assembly of air separation and screening integrated machine

Abstract

The utility model relates to a negative pressure adsorption impurity removal assembly of winnowing and screening integrated machine, including main part. The main part is hollowly arranged, and the vertical top of main part is provided with the feed inlet for tea material entering. The vertical below of feed inlet and located main part inside is provided with first sieve plate. First sieve plate is arranged obliquely, and first sieve plate is provided with a plurality of first sieve hole and the air hole of first sieve hole boundary arrangement. Impurity removal assembly still includes winnowing machine and negative pressure adsorption machine. The air outlet of winnowing machine stretches into the inside of main part. The adsorption mouth of negative pressure adsorption machine stretches into the inside of main part. The air outlet and adsorption mouth are arranged in the opposite way. The utility model's winnowing machine and negative pressure adsorption machine can form directional air flow field in the inside of main part, utilize the synergies of wind force blowing and negative pressure adsorption, accurate capture the light impurity in tea, realize the integration preliminary processing of screening and winnowing and remove the impurity, effectively promote the cleanliness of tea, lay the foundation for subsequent fine processing.

Description

Technical Field

[0001] This utility model relates to the field of tea air separation technology, and in particular to the negative pressure adsorption and impurity removal component of an integrated air separation and screening machine. Background Technology

[0002] In the tea processing industry, tea leaves often contain light impurities such as dust, tea dust, and fuzz after harvesting. Furthermore, tea leaves themselves exhibit particle size variations, necessitating impurity removal and sieving to improve product quality. Currently, the industry primarily employs two methods for impurity removal and sieving: one is "step-by-step processing," which involves first removing light impurities using air separation equipment, then transferring the material to sieving equipment for particle size classification. This method carries risks of material loss and secondary contamination during transport, and the equipment requires a large footprint, has a cumbersome operating procedure, and low processing efficiency, making it unsuitable for continuous industrial production. The other method is "simplified integrated processing," which uses equipment that integrates air separation and sieving functions. However, existing integrated equipment has significant drawbacks:

[0003] On the one hand, the internal airflow design of the equipment is unreasonable. The air separation mechanism alone causes the airflow to spread turbulently inside the equipment, making it impossible to form a directional and stable airflow field. This not only results in a low capture rate of light impurities (some impurities are easily dispersed by the airflow to the corners of the equipment and remain there), but also easily blows the tea leaves off the screen plate, interfering with the screening accuracy. This causes some tea leaves to enter the subsequent stages without being fully separated from the impurities. On the other hand, the screening structure design is simple. The screen plates are mostly horizontal or only single-stage screening. Horizontal screen plates are prone to tea leaf accumulation, which cannot achieve smooth material flow. Single-stage screening is difficult to meet the grading requirements of different specifications of tea leaves.

[0004] Furthermore, existing equipment suffers from poor coordination between impurity removal and sieving, often exhibiting the contradiction of "ignoring sieving precision during air separation and leaving impurities after sieving." This results in tea products still having a high impurity residue rate and inaccurate particle size grading, failing to meet the stringent requirements for cleanliness and grading accuracy in high-quality tea processing. Therefore, a tea processing equipment component that can achieve efficient coordination between impurity removal and sieving and is suitable for continuous industrial production is needed to address the shortcomings of existing technologies.

[0005] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a negative pressure adsorption impurity removal component for an integrated air classifier and sieve machine, comprising a main body. The main body is hollow, and an inlet for tea materials is located vertically upwards. A first sieve plate is located vertically below the inlet and inside the main body. The first sieve plate is inclined and has a plurality of first sieve holes and air holes demarcated from the first sieve holes. The impurity removal component also includes an air classifier and a negative pressure adsorption unit. The air outlet of the air classifier extends into the interior of the main body. The adsorption port of the negative pressure adsorption unit extends into the interior of the main body. The air outlet and adsorption port are arranged in a relative manner.

[0007] According to a preferred embodiment, the vertical height of the air separator is less than that of the negative pressure adsorption machine. The air outlet is arranged so as to extend into the main body from the side and be vertically inclined towards the adsorption port.

[0008] According to a preferred embodiment, the inclination direction of the first sieve plate is opposite to the inclination direction of the air outlet. The air outlet is located vertically below the corresponding air hole of the first sieve plate. The adsorption port is located vertically above the corresponding air hole of the first sieve plate.

[0009] According to a preferred embodiment, a plurality of first sieve holes are arranged vertically through a first sieve plate. A first collection chamber is provided vertically below the first sieve holes.

[0010] According to a preferred embodiment, a second sieve plate, arranged at an angle, is further provided inside the main body. The vertical height of the second sieve plate is less than the vertical height of the first sieve plate. The first and second sieve plates are staggered.

[0011] According to a preferred embodiment, a blower plate is provided between the first sieve plate and the second sieve plate. A blower for blowing the tea leaves is connected to the blower plate. The blower is located inside the main body and is oriented in a direction parallel to the inclination direction of the second sieve plate.

[0012] According to a preferred embodiment, the second sieve plate is provided with second sieve holes arranged at intervals. The diameter of the first sieve holes is smaller than the diameter of the second sieve holes.

[0013] According to a preferred embodiment, a plurality of second sieve holes are arranged vertically through the second sieve plate. A second collection chamber is provided vertically below the second sieve holes.

[0014] According to a preferred embodiment, a third collecting chamber is provided inside the main body. The third collecting chamber is located at the end of the second sieve plate away from the first sieve plate. The third collecting chamber is spaced apart from the second collecting chamber.

[0015] According to a preferred embodiment, the first collection chamber, the second collection chamber, and the third collection chamber are provided with switch panels on the sides of the main body. Attached Figure Description

[0016] Figure 1 This is a simplified structural diagram of the negative pressure adsorption and impurity removal component of the air classifier and sieve integrated machine according to a preferred embodiment of the present invention.

[0017] Figure 2 This is a simplified structural diagram of the negative pressure adsorption and impurity removal component of the air classifier and sieve integrated machine according to a preferred embodiment of the present invention after being cut open.

[0018] Figure 3 This is a simplified structural diagram of the negative pressure adsorption and impurity removal component of the air separation and screening integrated machine according to a preferred embodiment of the present invention, taken from another perspective.

[0019] List of reference numerals

[0020] 100: Main body; 101: Feed inlet; 102: First sieve plate; 103: First sieve hole; 104: First collection chamber; 105: Second sieve plate; 106: Second sieve hole; 107: Second collection chamber; 108: Third collection chamber; 109: Air hole; 200: Air separator; 201: Air outlet; 202: Blowing plate; 203: Blower; 300: Negative pressure adsorption machine; 301: Adsorption port. Detailed Implementation

[0021] The following is a detailed explanation with reference to the accompanying drawings.

[0022] Example 1

[0023] This utility model provides a negative pressure adsorption and impurity removal component for an integrated air classification and screening machine, such as... Figure 1 As shown, the negative pressure adsorption and impurity removal component of the air separation and screening integrated machine includes a main body 100. The main body 100 is hollow, and an inlet 101 for tea materials to enter is provided on the vertical upper part of the main body 100. Figure 2 and Figure 3As shown, a first sieve plate 102 is disposed vertically below the feed inlet 101 and inside the main body 100. The first sieve plate 102 is inclined and has a plurality of first sieve holes 103 and air holes 109 that are separated from the first sieve holes 103. The impurity removal assembly also includes an air classifier 200 and a negative pressure adsorption unit 300. The air outlet 201 of the air classifier 200 extends into the interior of the main body 100. The adsorption port 301 of the negative pressure adsorption unit 300 extends into the interior of the main body 100. The air outlet 201 and the adsorption port 301 are arranged in a relative manner. The hollow design of the main body 100, in conjunction with the vertically upward feed inlet 101, provides a stable entry channel for tea materials, ensuring that the materials can smoothly enter the equipment, avoiding feed blockage, and ensuring the continuity of subsequent processing. The first sieve plate 102 is inclined and has several first sieve holes 103. On the one hand, the inclined structure guides the tea material to flow naturally along the sieve plate, preventing material accumulation. On the other hand, the first sieve holes 103 achieve preliminary particle size screening of the tea (such as separating small-sized broken tea or impurities), completing the pre-purification of the tea. The air outlet 201 of the air separator 200 and the adsorption port 301 of the negative pressure adsorption machine 300 are "relatively set", which can form a directional airflow field inside the main body 100. By utilizing the synergistic effect of wind blowing and negative pressure adsorption, light impurities (such as dust, tea dust, and fuzz) in the tea are accurately captured, realizing the integrated preliminary treatment of "screening + air separation and impurity removal", effectively improving the cleanliness of the tea and laying the foundation for subsequent fine processing. The air vent 109 is specifically designed to provide a channel for the airflow of the air classifier, allowing the airflow field formed by the air classifier 200 and the negative pressure adsorption unit 300 to act directionally on the material. It is physically separated from the sieve holes, preventing the material from clogging the air vents or the airflow from interfering with the screening process. This achieves functional zoning of "screening (sieve holes)" and "air classifier impurity removal (air vents)," improving the synergistic efficiency of both. The diameter of the air vent 109 is much smaller than the diameter of the first sieve hole 103. More preferably, the diameter of the air vent 109 gradually decreases from the direction of the air classifier 200 to the direction of the negative pressure adsorption unit 300, thereby forming a narrowing flow channel to accelerate airflow.

[0024] According to a preferred embodiment, the vertical height of the air classifier 200 is less than the vertical height of the negative pressure adsorption unit 300. The air outlet 201 is positioned such that it extends into the main body 100 from the side and is vertically inclined towards the adsorption port 301. The design of the air classifier 200 having a lower vertical height than the negative pressure adsorption unit 300, and the air outlet 201 extending into the main body 100 from the side and "vertically inclined towards the adsorption port 301," allows the airflow from the air classifier to form an "upwardly oriented path," precisely guiding it to the negative pressure adsorption port 301 and preventing turbulent diffusion of the airflow within the main body. Simultaneously, the combination of the height difference and the inclination direction allows lightweight impurities to be carried directly towards the adsorption port by the airflow, reducing impurity dispersion within the main body, significantly improving the capture efficiency and stability of the negative pressure adsorption unit, and reducing the impurity residue rate.

[0025] According to a preferred embodiment, the inclination direction of the first sieve plate 102 is opposite to the inclination direction of the air outlet 201. The air outlet 201 is located vertically below the corresponding air hole 109 of the first sieve plate 102. The adsorption port 301 is located vertically above the corresponding air hole 109 of the first sieve plate 102. The first sieve plate 102 is tilted in the opposite direction to the air outlet 201, which can prolong the residence time of tea leaves on the sieve plate. This ensures that the first sieve hole 103 has sufficient time to complete the sieving and prevents the material from being directly blown away from the sieve plate by the airflow from the air outlet, thus ensuring the stability of the sieving and air separation process. The air outlet 201 and the adsorption port 301 correspond to the vertical lower and upper parts of the air hole 109, respectively, forming a precise airflow channel of "blowing down and sucking up". The airflow of the air separator is blown directionally towards the material through the air hole 109, efficiently blowing up the mixed light impurities. At the same time, the upper adsorption port 301 captures the impurities, realizing "directional air separation and impurity removal in the air hole area". This avoids the airflow from dispersing into the sieve hole area and interfering with the sieving, further improving the targeting and efficiency of air separation and impurity removal, while ensuring that the sieving and air separation functions do not interfere with each other and work synergistically.

[0026] According to a preferred embodiment, a plurality of first sieve holes 103 are arranged vertically through the first sieve plate 102. A first collection chamber 104 is provided vertically below the first sieve holes 103. The first sieve holes 103 "vertically penetrate" the first sieve plate 102 to ensure that tea leaves (or small-diameter impurities) that meet the particle size requirements after preliminary screening can fall vertically, avoiding blockage of the sieve holes due to tilting or structural problems, and ensuring the smooth flow of the screening channel. The first collection chamber 104 below the first sieve holes 103 can directionally collect the pre-screened materials (such as small-diameter tea leaves or separated small impurities), preventing the materials from scattering and accumulating inside the main body, facilitating subsequent separate processing of this part of the material (such as cleaning small impurities and recovering small-diameter tea leaves), and improving the orderliness and efficiency of material processing.

[0027] According to a preferred embodiment, a second sieve plate 105 is also provided inside the main body 100, arranged at an inclination. The vertical height of the second sieve plate 105 is less than the vertical height of the first sieve plate 102. The first sieve plate 102 and the second sieve plate 105 are staggered. The second sieve plate 105 is "inclinated" and its vertical height is less than that of the first sieve plate 102, forming a "stepped sieving path": the tea leaves processed by the first sieve plate can flow sequentially to the second sieve plate, avoiding the tea leaves from falling directly and skipping the second sieving, ensuring that each batch of tea leaves undergoes two sieving processes, significantly improving the sieving accuracy. The inclined structure continues the advantages of "preventing accumulation and promoting flow", ensuring the smooth transport of tea leaves on the second sieve plate, providing stable conditions for secondary fine sieving, and meeting the needs of tea grading.

[0028] According to a preferred embodiment, a blower plate 202 is provided between the first sieve plate 102 and the second sieve plate 105. A blower 203 for blowing tea leaves is connected to the blower plate 202. The blower 203 is located inside the main body 100 and is arranged in a direction parallel to the inclination direction of the second sieve plate 105. The blower plate 202 and the connected blower 203 between the first and second sieve plates can provide an airflow parallel to the inclination direction of the second sieve plate when the tea leaves transition from the first sieve plate to the second sieve plate. This airflow can blow the tea leaves, prevent the tea leaves from accumulating in the transition area between the two sieve plates, ensure the continuity of material conveying, and prevent the overall process from being affected by transition blockage.

[0029] According to a preferred embodiment, the second sieve plate 105 is provided with second sieve holes 106 arranged at intervals. The diameter of the first sieve hole 103 is smaller than the diameter of the second sieve hole 106. The smaller diameter of the first sieve hole 103 compared to the second sieve hole 106 forms a "gradient sieve structure": in the preliminary sieve stage, small-diameter materials (such as small broken tea leaves and fine impurities) are separated through the small-diameter first sieve hole; in the secondary sieve stage, medium-diameter materials are separated through the large-diameter second sieve hole, realizing the "coarse and fine grading" of tea according to particle size, meeting the separation requirements of different specifications of tea (such as the particle size distinction between premium tea and first-grade tea), improving the precision of tea sieve processing, and expanding the applicable scenarios of the equipment (adapting to tea grading with different processing needs).

[0030] According to a preferred embodiment, a plurality of second sieve holes 106 are arranged vertically through the second sieve plate 105. A second collection chamber 107 is provided vertically below the second sieve holes 106. The second sieve holes 106 "vertically penetrate" the second sieve plate 105 to ensure that tea leaves that meet the particle size requirements (medium particle size) after secondary sieving can fall smoothly, avoiding sieve hole blockage and ensuring the stability of secondary sieving. The second collection chamber 107 below the second sieve holes is specifically used to collect medium-sized tea leaves after secondary sieving. It collects "small particle size material" and "medium particle size tea leaves" respectively with the first collection chamber 104, realizing the classification and collection of materials after sieving, avoiding the mixing of materials of different particle sizes, facilitating the subsequent separate processing of different grades of tea leaves (such as packaging, deep processing), and improving material management efficiency.

[0031] According to a preferred embodiment, a third collection chamber 108 is provided inside the main body 100. The third collection chamber 108 is located at the end of the second sieve plate 105 away from the first sieve plate 102. The third collection chamber 108 and the second collection chamber 107 are spaced apart. The third collection chamber 108, located at the end of the second sieve plate 105 away from the first sieve plate 102, can collect large-diameter tea leaves that "cannot pass through the second sieve hole" after two sieving processes. Combined with the first collection chamber (small-diameter) and the second collection chamber (medium-diameter), it achieves complete grading and collection of tea leaves in three sizes: small, medium, and large, meeting the actual production needs of separating tea leaves of various specifications. The spaced arrangement of the third collection chamber 108 and the second collection chamber 107 structurally avoids mixing of tea leaves of different sizes, further improving the accuracy of grading and collection, ensuring the distinction of materials in each collection chamber, and enhancing the practicality and industrial adaptability of the equipment.

[0032] According to a preferred embodiment, the first collecting chamber 104, the second collecting chamber 107, and the third collecting chamber 108 are provided with switch panels on the sides of the main body 100. The switch panels provided on the sides of the main body in the first collecting chamber 104, the second collecting chamber 107, and the third collecting chamber 108 enable "convenient material retrieval without disassembling the equipment": operators can open / close the panels at any time to promptly remove tea leaves or impurities of different particle sizes.

[0033] It should be noted that the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection scope. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. This utility model specification contains multiple inventive concepts; phrases such as "preferred" or "according to a preferred embodiment" indicate that the corresponding paragraph discloses an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept. Throughout the text, the feature introduced by "preferred" is only an optional mode and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. The negative pressure adsorption and impurity removal component of the air separation and screening integrated machine, characterized in that, The device includes a main body (100), which is hollow. An inlet (101) for tea material to enter is located vertically above the main body (100). A first sieve plate (102) is located vertically below the inlet (101) and inside the main body (100). The first sieve plate (102) is inclined and has a plurality of first sieve holes (103) and air holes (109) separated from the first sieve holes (103). The impurity removal assembly also includes an air separator (200) and a negative pressure adsorption unit (300). The air outlet (201) of the air separator (200) extends into the interior of the main body (100), and the adsorption port (301) of the negative pressure adsorption unit (300) extends into the interior of the main body (100). The air outlet (201) and the adsorption port (301) are arranged in a relative manner.

2. The negative pressure adsorption and impurity removal component of the air separation and screening integrated machine according to claim 1, characterized in that, The vertical height of the air separator (200) is less than that of the negative pressure adsorption machine (300), wherein the air outlet (201) is arranged to extend into the body (100) from the side and to be vertically inclined toward the adsorption port (301).

3. The negative pressure adsorption and impurity removal component of the air separation and screening integrated machine according to claim 2, characterized in that, The tilting direction of the first sieve plate (102) is opposite to the tilting direction of the air outlet (201), wherein the air outlet (201) is located vertically below the corresponding air hole (109) of the first sieve plate (102), and the adsorption port (301) is located vertically above the corresponding air hole (109) of the first sieve plate (102).

4. The negative pressure adsorption and impurity removal component of the air-separation and screening integrated machine according to claim 3, characterized in that, A plurality of the first sieve holes (103) are arranged vertically through the first sieve plate (102), wherein, A first collection chamber (104) is provided vertically below the first sieve hole (103).

5. The negative pressure adsorption and impurity removal component of the air-separation and screening integrated machine according to claim 4, characterized in that, The main body (100) is further provided with an inclined second sieve plate (105), the vertical height of the second sieve plate (105) being less than the vertical height of the first sieve plate (102), wherein, The first sieve plate (102) and the second sieve plate (105) are staggered.

6. The negative pressure adsorption and impurity removal component of the air classification and screening integrated machine according to claim 5, characterized in that, A blower plate (202) is provided between the first sieve plate (102) and the second sieve plate (105). A blower (203) for blowing tea materials is connected to the blower plate (202). The blower (203) is located inside the main body (100) and is arranged in a direction parallel to the inclined direction of the second sieve plate (105).

7. The negative pressure adsorption and impurity removal component of the air classification and screening integrated machine according to claim 6, characterized in that, The second sieve plate (105) is provided with second sieve holes (106) arranged at intervals, wherein, The diameter of the first sieve hole (103) is smaller than the diameter of the second sieve hole (106).

8. The negative pressure adsorption and impurity removal component of the air separation and screening integrated machine according to claim 7, characterized in that, A plurality of second sieve holes (106) are arranged vertically through the second sieve plate (105), wherein, A second collection chamber (107) is provided vertically below the second sieve hole (106).

9. The negative pressure adsorption and impurity removal component of the air classification and screening integrated machine according to claim 8, characterized in that, The main body (100) has a third collection chamber (108) inside. The third collection chamber (108) is located at the end of the second sieve plate (105) away from the first sieve plate (102). The third collection chamber (108) is spaced apart from the second collection chamber (107).

10. The negative pressure adsorption and impurity removal component of the air classification and screening integrated machine according to claim 9, characterized in that, The first collection chamber (104), the second collection chamber (107) and the third collection chamber (108) are provided with switch panels on the side of the main body (100).

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