Honeycomb wheel gate and processing system with honeycomb wheel gate
By introducing the sieved section and multi -turn spiral honeycomb wheel room in the honeycomb wheel gate, combining the design of the rotating transportation motion and the nozzle device, the existing honeycomb wheel gate is difficult to perform the steps of screening and crushing treatment in the production of tablets. The problem realizes the efficient screening and crushing of the particles, and improves the measurement accuracy.
Patent Information
- Application Number
- CN202380042288.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-05-23
- Filing Date
- 2023-05-17
- Publication Date
- 2025-01-28
AI Technical Summary
Existing honeycomb wheel gates are difficult to perform further processing steps in tablet production, especially in the absence of effective solutions in the screening and crushing of particles.
A honeycomb wheel gate is designed. Its shell wall extends beyond the exit opening and has a sieve wall section designed as a sieve in the export opening area. In addition, the honeycomb wheel gate is equipped with a driving unit to achieve a uniform or alternative rotation and transportation movement, and a nozzle device is set in the honeycomb wheel room to control the compressed air.
This design not only achieves the measurement, entry and discharge of particles, but also can effectively screen and crush it, improves the measurement accuracy of small quality flow, and achieves a uniform quality flow through the honeycomb wheel chamber of a multi -turn spiral space.
Smart Images

Figure CN119384385A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a honeycomb wheel gate for metering, introducing and / or discharging particles, which has a shell in which an internal space is formed, the internal space being bounded by a shell wall having a cylindrical inner wall surface and having a central center axis, wherein the shell has an introduction unit in an introduction zone leading to the internal space with an inlet opening and has a discharge unit in an associated discharge zone spaced apart in the circumferential direction of the center axis and also leading to the internal space with an outlet opening; it has a honeycomb wheel arranged in the internal space, which can rotate around a rotation axis coinciding with the center axis while performing a rotational conveying movement, the honeycomb wheel having honeycomb wheel wings extending radially from the center axis to the inner wall surface, wherein a honeycomb wheel chamber for receiving particles is formed between two honeycomb wheel wings consecutive to each other, the honeycomb wheel chamber moving from the introduction zone to the discharge zone during the rotational conveying movement.
[0002] Furthermore, the invention relates to a processing system for pulsation-free metering, feeding and / or discharge of granules, comprising a granulator and a honeycomb wheel gate connected to the discharge of the granulator. Background Art
[0003] In tablet production, especially in the continuous production of solid dosage forms (also called solids), honeycomb wheel gates are used for the process steps of metering, entering and / or discharging granules.
[0004] This type of honeycomb wheel gate appears in WO 2020 / 156750 A1. The honeycomb wheel gate has a housing with at least one inlet unit and at least one outlet unit, in which a rotatably driven honeycomb wheel is arranged, the honeycomb wheel having a plurality of cell walls extending essentially radially and delimiting the cells of the honeycomb wheel in the circumferential direction, and wherein at least the cell walls of the honeycomb wheel are formed by an elastically flexible material, and two adjacent cell walls are respectively connected to each other in the region of their radial inner ends by a cell bottom, so that the cell bottom of the honeycomb wheel is formed by an elastically flexible membrane, which is respectively connected to these walls in the region of the radial inner ends of two adjacent cell walls and respectively extends over a cavity arranged radially on the inner side of the corresponding membrane.
[0005] DE 102004 044 217B4 also discloses a honeycomb wheel gate. The honeycomb wheel gate has a housing, which has an inner space defined by a substantially cylindrical inner wall, an upper inlet leading to the inner space, a lower outlet from the inner space, a central axis, and an end face defining the inner space; a housing cover with a closed end face, which is attached to the housing and has a bearing opening concentric with the central axis; a honeycomb wheel arranged concentrically with the central axis, which is rotatably mounted through the bearing opening and has wings, which extend radially along the central axis to the vicinity of the inner wall and extend in the direction of the central axis to the vicinity of the housing cover, wherein each housing cover has at least one groove-shaped recessed portion that is open to the inner space and extends radially from the area of the corresponding bearing opening to the central axis, over the wing and into the outlet.
[0006] A disadvantage of the honeycomb wheel locks known from the prior art is that they are not suitable for further necessary processing steps in tablet production. Summary of the invention
[0007] Therefore, the object of the present invention is to provide a honeycomb wheel gate, which overcomes the disadvantages of the prior art and is suitable for performing other processing steps of tablet production in addition to the metering, entry and discharge of particles. The object is achieved by a honeycomb wheel gate of the type mentioned at the beginning, wherein the housing wall extends beyond the outlet opening and has a screen wall section designed as a sieve in the area of the outlet opening. The sieve can further process the particles in a way that they are crushed and sieved. Advantageously, the honeycomb wheel gate not only takes over the metering, entry and discharge of particles, but also takes over the processing steps of sieving and crushing particles. In addition, by sieving and crushing the particles, the metering of particularly small mass flows through the honeycomb wheel gate can be improved.
[0008] The screen can be designed in various embodiments, for example as a wire screen version or as a metal insert, advantageously as a sheet metal insert or a steel insert.
[0009] According to an advantageous embodiment of the honeycomb wheel gate in this respect, the sieve can be removed and / or replaced. By replacing the sieve, sieves of different mesh sizes can be inserted into the honeycomb wheel gate, so that the particle size of the particles can be adapted to the process requirements. If the sieve is worn, it can also be replaced. In addition, the possibility of removable sieves also ensures that the sieves are easy to clean. If a sieve is not required, it can be omitted or, for example, a simple frame can be used.
[0010] According to a further improvement of the honeycomb wheel gate, the inner wall surface is at least partially designed as a sealing surface and / or each honeycomb wheel wing has a wing surface at least partially designed as a sealing surface. Through the design of the sealing surface, the pressure difference between the input side and the discharge side can be effectively isolated from each other.
[0011] According to another improvement of the honeycomb wheel gate, the honeycomb wheel gate has a drive unit that causes the honeycomb wheel to rotate and convey. The drive unit is advantageously suitable for performing a uniform rotational conveying motion or an alternating rotational conveying motion. Here, the alternating rotational conveying motion has a rotation of the honeycomb wheel in the conveying direction (forward motion) and a subsequent rotation of the honeycomb wheel in the direction opposite to the conveying direction (reverse motion), wherein the rotation of the honeycomb wheel in the conveying direction is greater than the rotation of the honeycomb wheel in the direction opposite to the conveying direction. At the same time, the rotational conveying motion should always be related to the length of the sieve. Preferably, the honeycomb wheel rotates by an angle α in the conveying direction, and then the honeycomb wheel rotates by an angle β against the conveying direction, wherein the angle α is greater than the angle β. This improves the screening and crushing process of the particles and ensures improved emptying of the honeycomb wheel chamber. Preferably, the angle α has an angle between 5° and 30°, and the angle β has an angle between 5° and 25°, wherein advantageously the angle α is 10° and the angle β is 5°.
[0012] Furthermore, the honeycomb wheel wing is designed in such a way that the honeycomb wheel chamber spans a multi-turn spiral space. Due to the multi-turn spiral space of the honeycomb wheel chamber, a uniform mass flow is achieved by sufficient superposition of the honeycomb wheel chambers above the sieve, thereby improving the metering of particles passing through the honeycomb wheel gate. The wider the honeycomb wheel, the more favorable the multi-turn spiral space in the honeycomb wheel chamber is for a uniform mass flow.
[0013] The inlet and outlet regions are preferably arranged asymmetrically to one another in the housing. The asymmetrical arrangement of the inlet and outlet regions relative to one another enables an optimal filling of the honeycomb chambers, which preferably have a multi-thread spiral arrangement.
[0014] A further development of the honeycomb wheel gate is that the honeycomb wheel chamber has an asymmetrically designed cross section. The asymmetrically designed cross section of the honeycomb wheel chamber has a positive effect on the optimal filling of the honeycomb wheel chamber on the inlet side and on the emptying of the honeycomb wheel chamber on the outlet side.
[0015] According to another development of the honeycomb wheel lock, the honeycomb wheel has at least one nozzle device for compressed air-controlled emptying of each honeycomb wheel chamber. The nozzle arrangement improves the emptying of the honeycomb wheel chamber. In this respect, the design of the nozzle arrangement enables the injection of compressed air in an angle-controlled manner in the area of the screen wall section.
[0016] The object is further achieved in a system of the above type, wherein the honeycomb wheel lock is designed as a honeycomb wheel lock according to any one of claims 1 to 13. Such a processing system is advantageously suitable for producing the required granules in tablet production, in particular in the continuous production of solid dosage forms, and for metering them according to process requirements for further processing in the process.
[0017] According to an advantageous embodiment in this respect, the granulator is designed as a fluidizing apparatus, advantageously as a fluidized bed apparatus or a spouted bed apparatus. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be explained in more detail below with reference to the accompanying drawings, in which
[0019] Figure 1 A processing system with a honeycomb wheel gate connected downstream of a pelletizer is shown,
[0020] Figure 2 A top view of a first embodiment of a honeycomb wheel gate is shown, with section AA being the cross section.
[0021] Figure 3 Shows Figure 1 A sectional view of the first embodiment of the honeycomb wheel gate along section AA shown in,
[0022] Figure 4 shows a radial view of a honeycomb wheel provided in a first embodiment of a honeycomb wheel gate,
[0023] Figure 5 A top view of a honeycomb wheel gate with a BB section is shown,
[0024] Figure 6 Shows Figure 5 A half-section view along section BB of the second embodiment of the honeycomb wheel gate shown,
[0025] Figure 7 A radial view of a cellular wheel provided in a second embodiment of a cellular wheel gate is shown. DETAILED DESCRIPTION
[0026] Unless otherwise stated, the following description relates to all embodiments of the honeycomb wheel lock 1 for metering, feeding and / or discharging particles and the processing system 2 having the honeycomb wheel lock 1 shown in the drawings.
[0027] The processing system 2 has a honeycomb wheel lock 1 located downstream of a granulator 3. The granulator 3 is advantageously designed here as a high-shear granulator 4, a roller press or a fluidizing device, in particular as a fluidized bed device or a spouted bed device. The honeycomb wheel lock 1 is arranged upstream of a dryer 5, in particular a fluidized bed dryer 6, and is connected to the dryer via a pipeline 7, advantageously a flexible hose connection 59. The processing system 2 with the honeycomb wheel lock 1 is suitable for ensuring pulsation-free metering, entry and / or discharge of the granules into the dryer 5.
[0028] The honeycomb wheel gate 1 has a housing 9, which has a housing wall 8, and the housing has an at least substantially cylindrical interior space 10, wherein the interior space 10 is bounded by a cylindrical inner wall surface 11. In addition, the interior space 10 has a central center axis 12. The interior space 10 of the housing 9 is open on its end faces 13, 14, wherein the end faces 13, 14 are each covered by a housing cover 15, 16, which is releasably fastened to the housing 9 by screws (not shown).
[0029] An inlet unit 19 arranged in the introduction zone 17 and having an inlet opening 18 opens from above into the interior 10. In a discharge zone 20 spaced apart in this respect in the circumferential direction of the center axis 12, a discharge unit 22 is arranged which also has an outlet opening 21 into the interior 10.
[0030] The housing wall 8 extends over the outlet opening 21 and has a screen wall section 24 in the region of the outlet opening 21 which is designed as a screen 23. The screen 23 can be easily removed and / or replaced. Figure 3 In the first embodiment of the honeycomb wheel gate 1 shown, the screen 23 has holes 26 extending radially in the housing wall 8 and designed as bores 25. Figure 6 In the second embodiment of the cellular wheel lock door 1 shown, the hole 26 designed as a bore 25 extends axially to the longitudinal center axis 27 of the cellular wheel lock door 1 .
[0031] The screen 23 can be designed in various embodiments, for example as a wire screen version or as an insert made of metal, advantageously as a sheet metal insert or a steel insert.
[0032] By replacing the sieve 23, sieves 23 of different meshes can be inserted into the honeycomb wheel gate 1, so that the particle size of the particles can be adapted to the process requirements. The usual mesh size is in the range of 0.1 mm to 2 mm, especially between 1.0 mm and 1.5 mm.
[0033] Furthermore, the bores 25 designed as holes 26 can also have different shapes. The bores 25 can, for example, be formed in the shape of a square, a circle, an ellipse, a parallelogram, etc. Furthermore, the sieve 23 can also have bores 25 of different shapes.
[0034] If the sieve 23 is worn, it can also be replaced. In addition, the possibility of the sieve 23 being removable also ensures that the sieve 23 is easy to clean. If the sieve 23 is not needed, the sieve 23 can be omitted, or a simple frame (not shown) can be used, for example.
[0035] Advantageously, the honeycomb wheel lock 1 not only takes over the metering, entry and discharge of particles, but also takes over the processing steps of screening and crushing particles. In addition, by screening and crushing particles, the metering of the particularly small mass flow through the honeycomb wheel lock 1 can be improved.
[0036] exist Figure 3 In the first embodiment of the honeycomb wheel gate 1 shown, the inlet area 17 is arranged on the upper half 28 of the honeycomb wheel gate 1, and the discharge area 20 is arranged on the lower half 29 of the honeycomb wheel gate 1. The inner wall surfaces 30, 31 of the inlet unit 19 extend parallel to the longitudinal center axis 27 and vertically from the upper side 57 to the lower side 58. The inner wall surface 32 of the discharge unit 22 extends from the top 57 of the honeycomb wheel gate 1 to the lower side 58 obliquely to the longitudinal center axis 27, while the inner wall surface 33 extends parallel to the longitudinal center axis 27 and vertically from the upper side 57 to the lower side 58. Therefore, the discharge surface 34 of the discharge unit 22 is smaller than the projection surface 35 of the outlet opening 21.
[0037] The inlet region 17 and the outlet region 20 are arranged at least partially offset from one another over the width 36 of the honeycomb wheel lock 1. Thus, the inlet region 17 and the outlet region 20 are arranged asymmetrically to one another in the housing 9.
[0038] In contrast, the inlet area 17 and the outlet area 20 are arranged vertically one above the other in the center of the honeycomb wheel gate 1, as shown in FIG. Figure 6 1 is a second embodiment of the honeycomb wheel gate 1 in FIG. The inner wall surfaces 30, 31 of the introduction unit 19 are conical and converge from the top 57 to the bottom 58 of the honeycomb wheel gate 1. Therefore, the introduction surface 37 of the introduction unit 19 is larger than the projection surface 38 of the inlet opening 18. The inner wall surfaces 32, 33 of the discharge unit 22 are designed to diverge conically from the top 57 to the bottom 58 of the honeycomb wheel gate 1. Therefore, the discharge surface 34 of the discharge unit 22 is larger than the projection surface 35 of the outlet opening 21. Similar to the introduction area 17 and the discharge area 20 in the housing 9, the introduction unit 19 and the discharge unit 22 are therefore designed to be symmetrical about the mirror axis 39.
[0039] A honeycomb wheel 42 is arranged in the inner space 10, which can rotate around a rotation axis 40 coinciding with the central axis 12 while performing a rotational conveying motion 41. The honeycomb wheel 42 is arranged in the inner space 10 in a replaceable manner. The shaft 46 of the honeycomb wheel 42, which is driven by a drive unit 43, advantageously by a motor 44, preferably by an electric motor or a torque motor 45, passes through a bearing opening not shown formed in the housing cover 15, 16, and is rotatably mounted in the bearing opening attached to a bearing not shown in the housing cover 15, 16. In addition, the honeycomb wheel 42 has a honeycomb wheel wing 47 extending radially from the central axis 12 to the inner wall surface 11.
[0040] Between two consecutive honeycomb wheel wings 47, honeycomb wheel chambers 48 are formed to accommodate particles. The honeycomb wheel 42 has a plurality of honeycomb wheel chambers 48, preferably 3 to 25 honeycomb wheel chambers 48. The honeycomb wheel chambers 48 move from the introduction zone 17 toward the discharge area 20 along the conveying direction 49. The asymmetric arrangement of the introduction zone 17 and the discharge zone 20 relative to each other ensures that the honeycomb wheel chambers 48 are optimally filled. Each honeycomb wheel chamber 48 receives particles below the introduction unit 19, and at the discharge unit 22, the particles are conveyed through the sieve wall section 24 designed as a sieve 23. This produces a continuous conveying of particles at a volume of 1 to 100 U / min of the honeycomb wheel 42. The conveying rate is determined by the content of particles in the honeycomb wheel chamber 48 and the rotational speed of the honeycomb wheel 42.
[0041] like Figure 2 and Figure 4 As shown, the honeycomb wheel wing 47 of the first embodiment of the honeycomb wheel 42 is designed so that the honeycomb wheel chamber 48 spans a multi-turn spiral space 50 in the axial direction of the rotation axis 40. Due to the multi-turn spiral space 50 of the honeycomb wheel chamber 48, a uniform mass flow is achieved by fully superimposing the honeycomb wheel chamber 48 above the screen 23, thereby improving the metering of particles passing through the honeycomb wheel gate 1. The space 50 advantageously has an asymmetrically designed cross section 51. The wider the honeycomb wheel 42, the more favorable the multi-turn spiral space 50 in the honeycomb wheel chamber 48 is for a uniform mass flow.
[0042] In contrast to the first embodiment of the honeycomb wheel 42, Figure 7 The honeycomb wheel wings 47 of the second embodiment of the honeycomb wheel 42 shown are designed so that the space 50 formed between two consecutive honeycomb wheel wings 47 is in the shape of a semi-cylinder. Therefore, the cross section 51 of the honeycomb wheel chamber 48 is semicircular, as shown in FIG. Figure 6 shown.
[0043] The drive unit 43 is advantageously designed to achieve a constant rotary conveying movement 41 of the honeycomb wheel 42. This rotary conveying movement 41 is achieved in the first embodiment. The arrangement of the honeycomb wheel chambers 48 with the constant rotary conveying movement 41 is conveniently selected so that at least two honeycomb wheel chambers 48 are at least partially in contact with the sieve 23 at any time point of the rotary conveying movement 41. This allows pulsations in the mass flow to be suppressed.
[0044] Alternatively, the drive unit 43 is suitable for realizing a rotary conveying movement 41, which is conveniently designed as an alternating rotary conveying movement 41. This rotary conveying movement 41 is realized in the second embodiment. Here, the alternating rotary conveying movement 41 has a rotation of the honeycomb wheel 42 along the conveying direction 49 (forward movement) and a subsequent rotation of the honeycomb wheel 42 against the conveying direction 49 (backward movement). In the alternating rotary conveying movement 41, the rotation of the honeycomb wheel 42 along the conveying direction 49 (forward movement) is preferably greater than the rotation of the honeycomb wheel 42 against the conveying direction 49 (backward movement). At the same time, the rotary conveying movement 41 should always be related to the screen length 60. Even if an alternating rotary conveying movement 41 is adopted, the arrangement of the honeycomb wheel chambers 48 can be conveniently selected so that at least two honeycomb wheel chambers 48 are at least partially in contact with the screen 23 at any time point of the rotary conveying movement 41. The pulsation of the mass flow is thereby suppressed.
[0045] For example, in the case of an exemplary alternating rotary conveying movement 41 and a sieve length 60 of 60 mm, the forward movement can also be 60 mm and the backward movement can be 45 mm. Other values for the forward and / or backward movement are also possible. After one cycle, i.e. one forward movement and one backward movement, the honeycomb wheel 42 undergoes a "net" rotation of 15 mm in the conveying direction 49. This avoids always using the same sieve surface 61 and always cleaning the same sieve surface 61 again by the backward movement.
[0046] This of course results in angles, namely angle α for forward movement and angle β for backward movement. Accordingly, the alternating rotary conveying movement 41 also means in particular that the honeycomb wheel 42 is rotated by angle α in the conveying direction 49, and then the honeycomb wheel 42 is rotated by angle β opposite to the conveying direction 49, wherein angle α is greater than angle β. This improves the screening and crushing process of the particles and ensures improved emptying of the honeycomb wheel chamber 48. Preferably, the angle α has an angle between 5° and 30°, and the angle β has an angle between 5° and 25°, wherein particularly preferably the angle α is 10° and the angle β is 5°. The angular dimensions of the angles α and β are preferably selected so that at least two spaces 50 are at least partially in contact with the screen 23 at any point in time of the rotary conveying movement 41. Pulsations of the mass flow are thereby suppressed.
[0047] The selection of the drive unit 43 can determine the rotary conveying motion 41, specifically, a constant rotary conveying motion 41 or an alternating rotary conveying motion can be selected. The drive unit can also be designed to realize a constant rotary conveying motion 41 of the honeycomb wheel 42 on the one hand and an alternating rotary conveying motion 41 on the other hand.
[0048] By forming the sealing surfaces 52, 53, the pressure difference occurring between the introduction unit 19 and the discharge unit 22 can be effectively separated and two different pressure levels can be maintained accordingly. Figure 3 In the first embodiment of the honeycomb wheel gate 1 shown in , the inner wall surface 11 is at least partially designed as a sealing surface 52, and each rotating wheel wing 47 has a wing surface 54, which is at least partially designed as a sealing surface 53. Figure 6 In the half section of the second embodiment of the honeycomb wheel gate 1 shown, only the inner wall surface 11 has the sealing surface 52 .
[0049] exist Figure 6 In the second embodiment of the honeycomb wheel lock 1 shown, two different options are shown as examples, which have a nozzle arrangement 55 for compressed air-controlled emptying of the honeycomb wheel chamber 48 .
[0050] In a first example, the honeycomb wheel 42 has a nozzle arrangement 55 in the form of a plurality of nozzles 56 arranged in the honeycomb wheel wing 47 for emptying each honeycomb wheel chamber 48 .
[0051] In the second example, the housing cover 15 has a nozzle arrangement 55, in particular a nozzle arrangement 55 in the form of a nozzle 56, which serves to empty each honeycomb wheel chamber 48. The nozzle arrangement 55 is particularly preferably designed so that compressed air can be ejected in an angle-controlled manner in the region of the sieve wall section 24. It is particularly preferred that a nozzle 56 is arranged in the housing cover 15, 16 for each honeycomb wheel chamber 48 arranged simultaneously above the sieve wall section 24. For example, if two honeycomb wheel chambers 48 are present simultaneously above the sieve 23, compressed air should be able to be blown into both honeycomb wheel chambers via the nozzle 56 in a convenient manner.
Claims
1. A honeycomb wheel lock (1) for metering, introducing and / or discharging particles, the honeycomb wheel lock comprising a housing (9) in which an interior space (10) is formed, the interior space being delimited by a housing wall (8) having a cylindrical inner wall surface (11) and having a central center axis (12), wherein the housing (9) has an introduction unit (19) in an introduction zone (17) which opens into the interior space (10) with an inlet opening (18) and an associated discharge zone (20) which is spaced apart in the circumferential direction of the center axis (12) and has an outlet unit (21) which likewise opens into the interior space (10). unit (22); the honeycomb wheel gate has a honeycomb wheel (42) arranged in the inner space (10), the honeycomb wheel can rotate around a rotation axis (40) coinciding with the central axis (12) while performing a rotational conveying motion (41), the honeycomb wheel has a honeycomb wheel wing (47) radially extending from the central axis (12) to the inner wall surface (11), wherein a honeycomb wheel chamber (48) for receiving particles is formed between two honeycomb wheel wings (47) connected to each other, and the honeycomb wheel chamber moves from the introduction area (17) to the discharge area (20) during the rotational conveying motion (41), characterized in that The housing wall (8) extends beyond the outlet opening (21) and has a screen wall section (24) designed as a screen (23) in the region of the outlet opening (21).
2. The honeycomb wheel gate (1) according to claim 1, characterized in that: The screen (23) is removable and / or replaceable.
3. The honeycomb wheel gate (1) according to claim 1 or 2, characterized in that: The inner wall surface (11) is at least partially designed as a sealing surface (52) and / or each honeycomb wheel wing (47) has a wing surface (54), and the wing surface is at least partially designed as a sealing surface (53).
4. The cellular wheel gate (1) according to any one of the preceding claims, characterized in that: The honeycomb wheel gate (1) has a drive unit (43) which causes the honeycomb wheel (42) to rotate and perform a conveying motion (41).
5. The honeycomb wheel gate (1) according to claim 4, characterized in that: The drive unit (43) is suitable for performing a uniform rotary conveying movement (41) or an alternating rotary conveying movement (41).
6. The honeycomb wheel gate (1) according to claim 5, characterized in that: The alternating rotational conveying movement (41) comprises a rotation of the honeycomb wheel (42) along a conveying direction (49) and a subsequent rotation of the honeycomb wheel (42) in a direction opposite to the conveying direction (49), wherein the rotation of the honeycomb wheel (42) in the conveying direction (49) is greater than the rotation of the honeycomb wheel (42) in a direction opposite to the conveying direction (49).
7. The honeycomb wheel gate (1) according to claim 6, characterized in that: The honeycomb wheel (42) is rotated by an angle α in a conveying direction (49), and then the honeycomb wheel (42) is rotated by an angle β counter to the conveying direction (49), wherein the angle α is greater than the angle β.
8. The honeycomb wheel gate (1) according to claim 7, characterized in that: The angle α is between 5° and 30°, and the angle β is between 5° and 25°, wherein advantageously the angle α is 10° and the angle β is 5°.
9. The honeycomb wheel gate (1) according to any one of the preceding claims, characterized in that: The honeycomb wheel wing (47) is designed so that the honeycomb wheel chamber (48) spans a plurality of turns of the spiral space (50).
10. The cellular wheel gate (1) according to any one of the preceding claims, characterized in that: The inlet region (17) and the outlet region (20) are arranged asymmetrically with respect to each other in the housing (9).
11. The cellular wheel gate (1) according to any one of the preceding claims, characterized in that: The honeycomb wheel chamber (48) has an asymmetric cross section (51).
12. The cellular wheel gate (1) according to any one of the preceding claims, characterized in that: The honeycomb wheel lock (1) has at least one nozzle device (55) for compressed air-controlled emptying of the honeycomb wheel chamber (48).
13. The honeycomb wheel gate (1) according to claim 12, characterized in that: The honeycomb wheel (42) has a nozzle device (55) for emptying each honeycomb wheel chamber (48) and / or the housing cover (15, 16) has a nozzle device (55) for emptying each honeycomb wheel chamber (48).
14. A processing system (2) for the pulsation-free metering, feeding and / or discharge of pellets, comprising a pelletizer (3) and a honeycomb wheel gate (1) connected to the discharge end of the pelletizer (3), characterized in that: The honeycomb wheel gate (1) is designed as a honeycomb wheel gate (1) according to any one of claims 1 to 13.
15. The processing system according to claim 14, characterized in that The granulator (3) is designed as a fluidizing device, advantageously as a fluidized bed device or a spouted bed device.
Citation Information
Patent Citations
rotary valve
DE102004044217B4
Metering unit having a rotated cell wheel, and distribution machine having such a metering unit
WO2020156750A1