Rolling machine and rolling system for preparing catalyst carrier
By designing movable grinding wheels and pusher plates within the compaction trough, combined with a water purification system, the problem of difficulty in controlling the powder state after compaction is solved, thereby improving the quality of the catalyst carrier and production efficiency.
Patent Information
- Application Number
- CN202422909517.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing rolling mills have difficulty controlling the state of powder during the deceleration of the rolling wheels after rolling, which affects the quality of the prepared catalyst carrier. In addition, the rolling is uneven, the light source is insufficient, the operation is inconvenient, and the labor consumption is high.
Design a grinding wheel in a compaction trough that moves along the width or length of the trough, combined with a retractable pusher plate and a clean water pipeline, to ensure compaction stability and uniformity, and to observe the powder state through a well-lit opening, reducing manual operation.
This achieved stability and uniformity in the rolling process, improved the quality of the catalyst support, reduced the workload of operators, and lowered environmental protection costs.
Smart Images
Figure CN223559143U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of catalyst carrier preparation technology, and specifically relates to a roller for catalyst carrier preparation and a roller system. BACKGROUND
[0002] When the catalyst carrier is prepared, usually, a plurality of different powders are mixed and then put into a closed circular roller, two rollers in the roller are connected to a central shaft, the central shaft drives the rollers to rotate to roll the powders in the container, and the state of the powders is observed from the upper observation port by using a flashlight during the rolling process; after the powders reach the state of the powders to be extruded, the rotation speed of the rollers is adjusted, the speed is lowered, and then the discharge door is opened; the powders are brought to the discharge door by the rear scraper of the roller, and then the powders are leaked into the lower feeder from the discharge door.
[0003] When the powders are rolled by using the existing circular roller, there are some problems:
[0004] After the rolling is completed, the rollers need to be gradually reduced in rolling speed, and during this period, the rollers still roll the powders in the roller, which makes it difficult to control the state of the powders after the rolling is completed, and affects the strength of the prepared catalyst carrier;
[0005] Since the rolling method of the rollers is rotary rolling, in order to avoid the scattering of the powders, the roller is designed as a closed structure, which causes insufficient light source when the staff observes the state of the powders, and the staff needs to use a flashlight to observe through the observation window, which is inconvenient to operate;
[0006] The central shaft occupies a part of the space, so that the surface of the roller has a small contact area with the powders, the rolling is uneven, and the rolling time is long;
[0007] Before the discharge door of the roller is closed, the operator needs to manually scrape the residual powders on the door plate of the discharge door, which increases the labor consumption;
[0008] The spraying effect of the water pipeline added to the roller is poor, the powders are unevenly soaked, and the mixing effect is affected. UTILITY MODEL CONTENTS
[0009] The utility model mainly solves one technical problem: the state of the powders is difficult to control during the speed reduction of the rollers after the rolling is completed by using the existing roller, which affects the quality of the prepared catalyst carrier.
[0010] In order to achieve the above-mentioned purpose, the utility model provides a roller for catalyst carrier preparation, which comprises a rolling groove and a roller arranged in the rolling groove, wherein the roller is arranged to extend along the width direction of the rolling groove and can move along the length direction of the rolling groove, or the roller is arranged to extend along the length direction of the rolling groove and can move along the width direction of the rolling groove.
[0011] In some embodiments, the rolling groove is open at the upper end.
[0012] In some embodiments, the two ends of the roller extend to the inner side wall of the rolling groove.
[0013] In some embodiments, a push plate is further provided on the inner side wall of the rolling groove, and the bottom of the rolling groove is provided with a discharge port, and the push plate is used to push the powder to the discharge port.
[0014] In some embodiments, the bottom of the rolling groove is movably connected with a baffle to close or open the discharge port.
[0015] In some embodiments, a rotating shaft is provided at the center axis of the roller, and a guide groove is provided on the inner side wall of the rolling groove, and the end of the rotating shaft can rotate along the guide groove to drive the roller to move.
[0016] In some embodiments, a supporting leg is further provided below the bottom of the rolling groove.
[0017] The utility model discloses a second aspect provides a kind of for the preparation of catalyst carrier's rolling system, including above-mentioned rolling mill, the material bin and water purification pipeline being provided above the rolling mill.
[0018] In some embodiments, the outlet of the water purification pipeline is connected with a water purification nozzle.
[0019] In some embodiments, the water purification pipeline has one or more.
[0020] Through the above technical scheme, the roller of the rolling groove is arranged to extend along the width or length direction of the rolling groove and can move along the length or width direction of the rolling groove, which greatly improves the stability of the roller when rolling the powder. Compared with the rotating movement of the roller of the existing rolling mill, the roller can be immediately stopped, i.e. without additional time for deceleration before stopping, which facilitates the control of the powder state and ensures the quality of the prepared catalyst carrier. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is the front view of the rolling system for preparing catalyst carrier disclosed by the utility model;
[0022] Figure 2 is the side view of the rolling system for preparing catalyst carrier disclosed by the utility model;
[0023] Figure 3 is the top view of the rolling system for preparing catalyst carrier disclosed by the utility model.
[0024] REFERENCE SIGNS
[0025] 1, silo; 2, clean water pipeline; 3, clean water nozzle; 4, grinding tank; 5, grinding wheel; 6, discharge port; 7, support leg; 8, pushing plate; 9, telescopic arm; 10, guide groove; 11, baffle; 12, rotating shaft. DETAILED DESCRIPTION
[0026] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The detailed description of the following examples and drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application, and the present application can be realized in many different forms, and is not limited to the specific examples disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0027] The present application provides these embodiments in order to make the present application thorough and complete, and fully express the scope of the present application to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.
[0028] It should be noted that, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0029] In addition, the "first", "second" and similar words used in the present application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.
[0030] It should be further noted that in the description of the present application, unless otherwise explicitly defined and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.
[0031] All terms used in the present application have the same meaning as understood by those of ordinary skill in the art to which the present application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless otherwise defined herein.
[0032] Techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be considered as part of the specification.
[0033] To solve the problem that the existing roller mill is difficult to control the powder state during the speed reduction of the roller after the rolling is completed, which affects the quality of the prepared catalyst carrier, the present application provides a first aspect of a roller mill for preparing a catalyst carrier, comprising a rolling groove 4 and a roller 5 arranged in the rolling groove 4, wherein the roller 5 is arranged to extend along the width direction of the rolling groove 4 and can move along the length direction of the rolling groove 4, or the roller 5 is arranged to extend along the length direction of the rolling groove 4 and can move along the width direction of the rolling groove 4.
[0034] As shown in Figures 1-3 The rolling groove 4 can be a square shell, and the inside is provided with a powder rolling space for receiving the powder poured into the rolling groove 4 from the upstream of the roller mill and rolling. The roller 5 can be a long strip cylindrical structure, and there can be a gap between the roller 5 and the bottom of the rolling groove 4, so that the material accumulates in the gap.
[0035] When the roller 5 is rolling the powder, the powder is subjected to the downward pressure of the roller 5, so that the powder will not be scattered out of the roller due to the centrifugal force during the movement of the roller 5 as in the conventional roller. Moreover, since the movement direction of the roller 5 in the rolling groove 4 is horizontal, the powder is subjected to the horizontal friction force and is evenly rolled and spread on the bottom of the rolling groove 5. The whole rolling process is very stable, so that the roller 5 can be quickly switched from the rolling state to the stop state, while ensuring the quality of the catalyst carrier. However, the roller of the conventional roller is rotating, and the sudden stop may cause the powder to be unevenly distributed, affecting the overall compaction effect and quality.
[0036] The movement of the roller 5 can be driven by a motor, which can be arranged outside the rolling groove 4, so that the roller 5 can contact any position on the bottom of the rolling groove 4, avoiding occupying the area of the powder rolling space, and further improving the rolling efficiency of the roller 5.
[0037] According to the above technical scheme, the roller 5 of the rolling groove 4 is arranged to extend along the width or length direction of the rolling groove 4 and can move along the length or width direction of the rolling groove 4, which greatly improves the stability of the roller 5 when rolling the powder. Compared with the rotating movement of the roller of the existing roller, the roller 5 of the present application can be immediately stopped, i.e. without additional time for deceleration before stopping, which is convenient for controlling the state of the powder and ensuring the quality of the prepared catalyst carrier.
[0038] In some embodiments, the rolling groove 4 is arranged to be open at the upper end.
[0039] As shown in Figures 1-3 , since the rolling process of the roller 5 of the present application is stable and the powder is not easy to scatter, the rolling groove 4 can be arranged to be open at the upper end, and the light is sufficient, which is beneficial for the operator to directly observe the powder from above the rolling groove 4, and is convenient for controlling the state of the powder during the whole rolling process, and improves the quality of the prepared catalyst carrier. The depth of the rolling groove 4 is arranged to be greater than the diameter of the roller 5, which further limits the scattering of the powder.
[0040] In some embodiments, the two ends of the roller 5 extend to the inner side wall of the rolling groove 4.
[0041] As shown in Figure 1 , 3 , the two ends of the roller 5 extend to the inner side wall of the rolling groove 4, which makes the length of the roller 5 close to the length or width of the rolling groove 4 as much as possible under the condition of ensuring the normal movement of the roller 5. In this way, the contact area between the roller 5 and the bottom of the rolling groove 4 can be increased, and then the contact area between the roller 5 and the powder laid on the bottom of the rolling groove 4 can be increased, which prolongs the rolling time and improves the uniformity of the powder rolling.
[0042] In actual production, the rolling effect is enhanced due to the increased surface area of the roller 5, so that the content of nitric acid in the kneaded liquid can be reduced on the basis of reducing the rolling time, thereby reducing the amount of NOx emitted and saving environmental protection costs. X
[0043] In some embodiments, a pushing plate 8 is telescopically arranged on the inner side wall of the rolling groove 4, and the bottom of the rolling groove 4 is provided with a discharge port 6, and the pushing plate 8 is used to push the powder to the discharge port 6.
[0044] As shown in Figure 2 , 3 , the pushing plate 8 can be a square long plate, and the lower end extends to the bottom of the rolling groove 4 to contact and push the powder. The pushing plate 8 can be arranged on any inner side wall of the rolling groove 4, and can push the powder to the discharge port 6. In order to avoid affecting the movement of the roller 5, the pushing plate 8 is preferably arranged on the inner side wall perpendicular to the movement direction of the roller 5, and the pushing plate 8 can be arranged on the opposite two inner side walls. In this way, after rolling is completed, the roller 5 can be stopped on one side in the rolling groove 4, and the pushing plate 8 on the opposite side pushes the powder to the discharge port 6, and then the roller 5 is stopped on the opposite side in the rolling groove 4, and the pushing step is repeated. The whole process is time-saving, and ensures that the powder in the rolling groove 4 can fall from the discharge port 6.
[0045] The pushing plate 8 and the inner side wall of the rolling groove 4 can be provided with a telescopic rod or a telescopic arm to realize the telescopic arrangement of the pushing plate 8, and the telescopic rod or the telescopic arm is preferably automatically controlled by a motor. By adjusting the length of the telescopic rod or the telescopic arm, the position of the pushing plate 8 in the rolling groove 4 can be changed, so that the powder at any position can be pushed to the discharge port 6. The extension direction of the discharge port 6 can be consistent with the length direction of the pushing plate 8, and the length is set to be greater than or equal to the length of the pushing plate 8, and is set to be less than or equal to the length or width of the rolling groove 4 according to the actual extension direction, so as to ensure that all the powder is removed from the discharge port 6 by the pushing plate 8. The position of the discharge port 6 is preferably set at the middle position of the bottom of the rolling groove 4.
[0046] In some embodiments, the bottom of the rolling groove 4 is movably connected with a baffle 11 to close or open the discharge port 6.
[0047] As shown in Figure 1 , 2 As shown, the total area of the baffle 11 should be greater than or equal to the area of the discharge port 6 to ensure the closure of the discharge port 6. Specifically, the baffle 11 can be hinged to the bottom of the rolling groove 4, realizing the rotational connection of the baffle 11 with the rolling groove 4. The bottom of the rolling groove 4 can also be slotted or provided with a guide rail and extended to the discharge port 6, and the baffle 11 can slide in the slot or guide rail to the discharge port 6 and continue to move until it covers the entire discharge port 6. The baffle 11 can be automatically controlled to approach or move away from the discharge port 6, without the need for manual cleaning, reducing the workload of the operator.
[0048] In some embodiments, a rotating shaft 12 is arranged at the center axis of the roller 5, and a guide groove 10 is arranged on the inner side wall of the rolling groove 4, and the end of the rotating shaft 12 can rotate along the guide groove 10 to drive the roller 5 to move.
[0049] As shown, Figures 1-3 The rotating shaft 12 passes through the center axis of the roller 5 and is integrally arranged with the roller 5, so that the roller 5 rotates synchronously with the rotating shaft 12. The rotating shaft 12 can be connected with the motor output shaft outside the rolling groove 4 and automatically controlled. The guide groove 10 is parallel to the movement direction of the roller 5 and is arranged on the two opposite inner side walls in the length or width direction of the rolling groove 4, and the length is greater than or equal to the movement distance of the roller 5. The guide groove 10 can be further provided with a sliding rail matched with the end of the rotating shaft 12 to avoid the rotating shaft 12 from being separated from the guide groove 10 during movement.
[0050] In some embodiments, a supporting leg 7 arranged below the bottom of the rolling groove 4 is further included. As shown, Figure 3 The supporting leg 7 is used to support and fix the rolling groove 4, and the arrangement position can be various. Specifically, one supporting leg 7 can be arranged near the center of the bottom of the rolling groove 4, or the supporting legs 7 can be evenly distributed on the bottom of the rolling groove 4, for example, one supporting leg 7 is arranged at each corner of the rolling groove 4.
[0051] The second aspect of the utility model provides a kind of for catalyst carrier preparation's rolling system, including preceding described rolling mill, material bin 1 and clean water pipeline 2 arranged above rolling mill.
[0052] As shown, Figure 1 , 2 The material bin 1 can be arranged above one side of the rolling groove 4, and the clean water pipeline 2 can be extended to the vicinity of the discharge port close to the material bin 1, so as to mix the powder falling into the rolling groove 4 with water in time.
[0053] In some embodiments, the outlet of the clean water pipeline 2 is connected with a clean water spray head 3.
[0054] As shown, Figure 1 , 2As shown, the outlet of the water pipeline 2 is further provided with a water spray head 3 to spray water on the surface of the powder, in such a way that the area of the powder in contact with water is increased and the mixing of the powder and water is more uniform. The outlet of the water pipeline 2 can be connected with one or more water spray heads 3 according to the actual capacity of the roller press and the volume of the powder.
[0055] In some embodiments, the water pipeline 2 has one or more.
[0056] As Figure 1 As shown, according to the actual capacity of the roller press and the volume of the powder, one or more water pipelines 2 can also be provided. When there are multiple water pipelines 2, they can be preferably symmetrically arranged above the roller press tank 4, further increasing the contact area of water and powder and the uniformity of mixing, improving the efficiency of catalyst carrier preparation and the quality of the product.
[0057] So far, the embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.
[0058] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration and are not intended to limit the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present application. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way.
Claims
1. A roller compactor for catalyst carrier preparation, characterized by, The roller mill comprises a roller groove (4) and a roller (5) arranged in the roller groove (4), wherein the roller (5) is arranged to extend along the width direction of the roller groove (4) and is movable along the length direction of the roller groove (4), or the roller (5) is arranged to extend along the length direction of the roller groove (4) and is movable along the width direction of the roller groove (4).
2. The roller compactor for catalyst carrier preparation according to claim 1, characterized in that, The roller groove (4) is arranged to be open at the upper end.
3. The roller compactor for catalyst carrier preparation according to claim 1, characterized in that, The two ends of the roller (5) extend to the inner side wall of the roller groove (4).
4. The roller compactor for catalyst carrier preparation according to claim 1, wherein A push plate (8) is arranged on the inner side wall of the roller groove (4) in a retractable manner, and a discharge port (6) is arranged at the bottom of the roller groove (4), and the push plate (8) is used to push the powder to the discharge port (6).
5. The roller compactor for catalyst carrier preparation according to claim 4, characterized in that, A baffle (11) is movably connected to the bottom of the roller groove (4) to close or open the discharge port (6).
6. The roller compactor for catalyst carrier preparation according to claim 1, characterized in that, A rotating shaft (12) is arranged at the center axis of the roller (5), a guide groove (10) is arranged on the inner side wall of the roller groove (4), and the end of the rotating shaft (12) can rotate along the guide groove (10) to drive the roller (5) to move.
7. The roller compactor for catalyst carrier preparation according to claim 1, characterized in that, A supporting leg (7) is arranged below the bottom of the roller groove (4).
8. A roller compaction system for catalyst support preparation, characterized by, The roller mill, the material bin (1) and the clean water pipeline (2) are arranged above the roller mill.
9. The roller compaction system for catalyst support preparation of claim 8, wherein, A clean water nozzle (3) is connected to the outlet of the clean water pipeline (2).
10. The roller compaction system for catalyst support preparation of claim 8, wherein, The clean water pipeline (2) has one or more.