Centrifugal spray dryer convenient to clean
By employing a sliding scraper and a cylinder-driven system in a centrifugal spray dryer, the material adhering to the inner wall of the drying chamber is automatically scraped off, solving the problem of difficult scaling and cleaning, and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202520539314.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-26
AI Technical Summary
During spray drying, high-temperature drying particles tend to adhere to the inner wall of the drying chamber, resulting in scale buildup that is difficult to clean, affecting product quality and reducing production efficiency.
Design an easy-to-clean centrifugal spray dryer that uses a sliding scraper and a cylinder drive system. The scraper slides up and down in the drying chamber, and combined with a guide structure and screw drive, automatically scrapes off the attached material.
It effectively reduces the adhesion of materials to the inner wall of the drying chamber, reduces the difficulty of subsequent cleaning, improves production efficiency, reduces downtime, and ensures product quality.
Smart Images
Figure CN223944988U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of dryers, in particular to a centrifugal spray dryer convenient to clean. BACKGROUND
[0002] Spray drying is a drying method often used in the fermentation industry. After atomization, the material is rapidly dried in the dryer. Spray can be divided into centrifugal spray drying, pressure spray drying and air flow spray drying according to the form of atomizer. Among them, the common centrifugal spray dryer mainly includes a feeding system (stirring tank, emulsifying tank, feeding pump), a heating system (steam, electricity, hot air furnace), an air system (filter), an atomizer (centrifugal atomizer), a drying chamber, a material collecting device (cyclone, cloth bag) and a control system. Air is heated by the heating system into hot air, enters the hot air distributor at the top of the drying chamber, and then uniformly enters the drying chamber and rotates spirally, while sending the liquid to the centrifugal atomizer at the top of the drying chamber, so that the liquid is atomized into extremely small atomized droplets. The liquid and hot air are in parallel contact, and the water is rapidly evaporated to dry the product in a very short time. The finished product is discharged through the bottom of the drying chamber and the cyclone separator, and the waste gas is discharged by the fan.
[0003] At present, in the production process, high-temperature dried particles are easily attached to the inner wall of the drying chamber. They are easily scorched and accumulated with scale after being directly baked for a long time, and then deteriorated, affecting the product quality. In order to avoid affecting the product quality, it is necessary to manually clean and wash the material adhered to the inner wall of the tower body at regular intervals. However, the scale removal work after the scale accumulation on the inner wall of the drying equipment is difficult and labor-intensive, and it will also reduce the production efficiency due to shutdown. CONTENT OF THE INVENTION
[0004] In order to automatically scrape off the material adhered to the inner wall of the drying chamber in the production process and reduce the difficulty of later cleaning, the present application provides a centrifugal spray dryer convenient to clean.
[0005] The centrifugal spray dryer convenient to clean provided by the present application adopts the following technical scheme:
[0006] A centrifugal spray dryer convenient to clean mainly comprises a drying chamber, two scraping members are slidably arranged in the drying chamber, the two scraping members are both arranged in a semicircular ring shape, and the outer walls of the two scraping members are attached to the inner wall of the drying chamber;
[0007] Two air cylinders are fixedly installed at the top of the drying chamber, the extension shafts of the two air cylinders are respectively fixedly connected with the two scraping members, and the two air cylinders drive the two scraping members to ascend and descend in the drying chamber according to a set frequency;
[0008] The inner wall of the drying chamber and the two scraping members are provided with a guide structure.
[0009] By adopting the above technical scheme, in the process of processing, the two cylinders drive the two scraping members to reciprocate up and down at a set frequency through the telescopic shafts. In the process of up and down sliding of the scraping members, the outer walls of the two scraping members can scrape off the materials attached to the inner wall of the drying chamber, reduce the situation that the materials are attached to the inner wall of the drying chamber for a long time, and effectively reduce the difficulty of subsequent cleaning of the drying chamber by the operator.
[0010] Preferably, the scraping members are respectively fixedly provided with connecting plates, and the telescopic shafts of the two cylinders are respectively fixedly connected with the two connecting plates.
[0011] By adopting the above technical scheme, the connection between the telescopic shafts of the cylinders and the scraping members can be realized through the arrangement of the connecting plates.
[0012] Preferably, the scraping members are respectively fixedly provided with connecting plates, and the telescopic shafts of the two cylinders are respectively fixedly connected with the two connecting plates.
[0013] By adopting the above technical scheme, the situation that the materials are attached and accumulated on the surface of the scraping members can be reduced through the arrangement of the guide slope.
[0014] Preferably, the guide structure comprises two guide rails which are oppositely arranged, and the outer sides of the two ends of the scraping plate are respectively provided with avoiding notches for cooperating with the guide rails.
[0015] By adopting the above technical scheme, the guide rails are limitingly arranged in the avoiding notches, the two ends of the scraping members are limited, the scraping members can ascend and descend along the axial direction of the guide rails, the shaking and deviation of the scraping members can be reduced, and the stability of the ascending and descending actions of the two scraping members is improved.
[0016] Preferably, a lead screw is rotatably arranged in the drying chamber, the lead screw is located in the middle part of the drying chamber, and a continuous spiral sliding groove is arranged on the rod body of the lead screw.
[0017] A sliding seat is slidably arranged on the lead screw, a sliding hole which is matched with the rod body of the lead screw is arranged through the sliding seat, an embedding groove is arranged on the inner side wall of the sliding hole, a ball is movably arranged in the embedding groove, and the part of the ball which extends out of the groove of the embedding groove is rotatably arranged in the spiral sliding groove.
[0018] The two scraping members and the two sliding seats are detachably connected.
[0019] A connecting rod is fixedly connected to the bottom of the lead screw, and two inclined scraping plates are fixedly arranged on the connecting rod.
[0020] By adopting the technical scheme, when the two scraping pieces are driven to move up and down by the cylinders, the sliding seat can be synchronously driven to move up and down, the rolling balls in the sliding seat can slide along the spiral sliding grooves to drive the lead screws to rotate, the connecting rods below the lead screws can drive the two inclined scraping plates to rotate, and the material on the lower conical inner wall in the drying chamber can be scraped off.
[0021] Preferably, two mounting plates are fixedly installed on the sliding seat, and the ends of the two connecting plates are respectively bolted to the two mounting plates.
[0022] By adopting the technical scheme, through the mounting plates, the operator can conveniently install the two scraping plates on the sliding seat by using bolts, and the technical effect of detachable connection between the two scraping pieces and the sliding seat can be achieved.
[0023] Preferably, a first support and a second support are fixedly installed on the inner wall of the drying chamber, and the two ends of the lead screw are respectively rotatably installed on the first support and the second support.
[0024] By adopting the technical scheme, through the first support and the second support, the rotatable installation of the two ends of the lead screw can be achieved.
[0025] To sum up, the centrifugal spray dryer convenient to clean has at least one of the following beneficial technical effects:
[0026] 1. During processing, the two scraping pieces are driven to reciprocate up and down at a set frequency by the two cylinders through the telescopic shafts, the outer walls of the two scraping pieces can scrape off the material attached to the inner wall of the drying chamber during the up-and-down movement of the scraping pieces, the situation that the material is attached to the inner wall of the drying chamber for a long time can be reduced, and the difficulty of subsequent cleaning of the drying chamber by the operator can be effectively reduced.
[0027] 2. The guide rails are limited in the avoiding notches, the two ends of the scraping pieces are limited, the scraping pieces can move up and down along the axial direction of the guide rails, the situation that the scraping pieces shake or deviate can be reduced, and the stability of the up-and-down movement of the two scraping pieces is improved.
[0028] 3. When the two scraping pieces are driven to move up and down by the cylinders, the sliding seat can be synchronously driven to move up and down, the rolling balls in the sliding seat can slide along the spiral sliding grooves to drive the lead screws to rotate, the connecting rods below the lead screws can drive the two inclined scraping plates to rotate, and the material on the lower conical inner wall in the drying chamber can be scraped off. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 is a schematic view of the internal structure of the drying chamber.
[0030] Figure 2is a schematic view of the first support and the second support connection structure.
[0031] Figure 3 is Figure 1 An enlarged schematic view at A in the middle, mainly used to show the cooperation mode between the sliding seat and the lead screw.
[0032] Reference signs: 1, drying chamber; 11, guide rail; 2, scraping piece; 21, connecting plate; 22, guide slope; 23, avoiding notch; 3, air cylinder; 31, telescopic shaft; 4, lead screw; 41, spiral chute; 5, sliding seat; 51, sliding hole; 52, embedding groove; 53, ball; 54, mounting plate; 6, connecting rod; 61, inclined scraper; 7, first support; 71, first disc; 72, first support rod; 8, second support; 81, second disc; 82, second support rod. DETAILED DESCRIPTION
[0033] The following will be combined with the Figures 1-3 The application is further described in detail.
[0034] EMBODIMENT
[0035] The application discloses a centrifugal spray dryer convenient to clean. Referring to Figure 1 and Figure 2 , mainly comprising a drying chamber 1, two scraping pieces 2 are slidably arranged in the drying chamber 1, the two scraping pieces 2 are both arranged in a semicircular ring shape, and the outer walls of the two scraping pieces 2 are attached to the inner wall of the drying chamber 1; two air cylinders 3 are fixedly installed at the top of the drying chamber 1, the telescopic shafts 31 of the two air cylinders 3 are respectively fixedly connected with the two scraping pieces 2, and the two air cylinders 3 drive the two scraping pieces 2 to ascend and descend in the drying chamber 1 according to a set frequency; a guide structure is arranged between the inner wall of the drying chamber 1 and the two scraping pieces 2.
[0036] During the processing, the two air cylinders 3 drive the two scraping pieces 2 to reciprocate up and down according to a set frequency through the telescopic shafts 31, and in the process of ascending and descending of the two scraping pieces 2, the outer walls of the two scraping pieces 2 can scrape off the materials attached to the inner wall of the drying chamber 1, so that the situation that the materials are attached to the inner wall of the drying chamber 1 for a long time can be reduced, and the difficulty of subsequent cleaning of the drying chamber 1 by an operator can be effectively reduced.
[0037] Referring to Figure 1 and Figure 2 , the connecting plates 21 are respectively fixedly installed on the scraping pieces 2, and the telescopic shafts 31 of the two air cylinders 3 are respectively fixedly connected with the two connecting plates 21. Through the arrangement of the connecting plates 21, the connection between the telescopic shafts 31 of the air cylinders 3 and the scraping pieces 2 can be realized.
[0038] Referring to Figure 1The guide slope 22 is formed on the scraping member 2 and is inclined inward along the direction of the material falling. By arranging the guide slope 22, the material adhering and accumulating on the surface of the scraping member 2 can be reduced.
[0039] Referring to Figure 1 With Figure 2 The guide structure comprises two guide rails 11 arranged oppositely, and the outer sides of the two ends of the scraping plate are respectively provided with a avoiding gap 23 for cooperating with the guide rail 11.
[0040] The guide rail 11 is limitedly arranged in the avoiding gap 23, and can limit the two ends of the scraping member 2, so that the scraping member 2 can be lifted up and down along the axial direction of the guide rail 11, and the shaking and deviation of the scraping member 2 can be reduced, and the stability of the lifting action of the two scraping members 2 can be improved.
[0041] In this embodiment, please refer to Figures 1-3 A lead screw 4 is rotatably arranged in the drying chamber 1, the lead screw 4 is located in the middle of the drying chamber 1, and a continuous spiral sliding groove 41 is formed on the rod of the lead screw 4; a sliding seat 5 is slidably arranged on the lead screw 4, a sliding hole 51 matched with the rod of the lead screw 4 is formed through the sliding seat 5, an embedding groove 52 is formed on the inner side wall of the sliding hole 51, and a ball 53 is movably arranged in the embedding groove 52, the part of the ball 53 extending out of the slot of the embedding groove 52 is rotatably arranged in the spiral sliding groove 41; the two scraping members 2 are detachably connected with the two sliding seats 5; the bottom of the lead screw 4 is fixedly connected with a connecting rod 6, and two inclined scraping plates 61 are fixedly arranged on the connecting rod 6.
[0042] When the air cylinder 3 drives the two scraping members 2 to lift up and down, the sliding seat 5 can be synchronously driven to slide up and down, the ball 53 in the sliding seat 5 can slide along the spiral sliding groove 41 to drive the lead screw 4 to rotate, and the connecting rod 6 below the lead screw 4 can drive the two inclined scraping plates 61 to rotate to scrape the material on the lower conical inner wall of the drying chamber 1.
[0043] Referring to Figure 3 Two mounting plates 54 are fixedly arranged on the sliding seat 5, and the ends of the two connecting plates 21 are respectively bolted on the two mounting plates 54. By arranging the mounting plates 54, the operator can use bolts to mount the two scraping plates on the sliding seat 5, and the detachable connection between the two scraping members 2 and the sliding seat 5 can be realized.
[0044] Referring to Figure 1 With Figure 2 A first support 7 and a second support 8 are fixedly arranged on the inner wall of the drying chamber 1, and the two ends of the lead screw 4 are rotatably arranged on the first support 7 and the second support 8. By arranging the first support 7 and the second support 8, the two ends of the lead screw 4 can be rotatably arranged.
[0045] It needs to be explained that in the embodiment, the first support 7 comprises two first supporting rods 72 and a first disc 71, the first disc 71 is located at the middle part of the drying chamber 1, one end of the two first supporting rods 72 is fixed on the side wall of the first disc 71 through welding, and the other end of the two first supporting rods 72 is fixed on the inner wall of the drying chamber 1 through welding.
[0046] The second support 8 comprises two second supporting rods 82 and a second disc 81, the second disc 81 is located at the middle part of the drying chamber 1 and below the first disc 71, one end of the two second supporting rods 82 is fixed on the side wall of the second disc 81 through welding, and the other end of the two second supporting rods 82 is fixed on the inner wall of the drying chamber 1 through welding.
[0047] The top of the lead screw 4 is fixedly installed with a rotating shaft, the first disc 71 is provided with a first insertion hole penetratingly formed and matched with the rotating shaft, the rotating shaft is inserted and rotatably installed in the first insertion hole, the second disc 81 is provided with a second insertion hole penetratingly formed and matched with the connecting rod 6, and the connecting rod 6 penetrates the second insertion hole and extends into the conical cavity at the lower part of the drying chamber 1.
[0048] The implementation principle of the centrifugal spray dryer convenient to clean in the embodiment is as follows: in the processing process, the two cylinders 3 drive the two scraping pieces 2 to reciprocate up and down at a set frequency through the telescopic shaft 31, in the up and down sliding process of the scraping pieces 2, the outer wall of the two scraping pieces 2 can scrape off the material attached to the inner wall of the drying chamber 1, the situation that the material is attached to the inner wall of the drying chamber 1 for a long time is reduced, and the difficulty of the subsequent cleaning of the drying chamber 1 by the operator can be effectively reduced.
[0049] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so: all equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.
Claims
1. A centrifugal spray dryer that facilitates cleaning, characterized in that, Including dry room (1), two scraping materials (2) are slidably arranged in the dry room (1), the two scraping materials (2) are both arranged in semicircular ring, and the outer wall of the two scraping materials (2) is attached to the inner wall of the dry room (1); Two air cylinders (3) are fixedly installed on the top of the dry room (1), the telescopic shaft (31) of the two air cylinders (3) is respectively fixedly connected with the two scraping materials (2), and the two air cylinders (3) drive the two scraping materials (2) to ascend and descend in the dry room (1) according to the set frequency; The inner wall of the dry room (1) and the two scraping materials (2) are provided with a guide structure.
2. A centrifugal spray dryer for easy cleaning according to claim 1, characterized in that The connecting plate (21) is fixedly installed on the scraping material (2), and the telescopic shaft (31) of the two air cylinders (3) is fixedly connected with the two connecting plates (21).
3. A centrifugal spray dryer for easy cleaning according to claim 2, characterized in that The scraping material (2) is formed with a guide inclined surface (22), and the guide inclined surface (22) is inclined inward along the direction of material falling.
4. A centrifugal spray dryer for easy cleaning according to claim 3, characterized in that The guide structure includes two guide rails (11), the two guide rails (11) are oppositely arranged, and the outer side of the two ends of the scraping material is provided with a avoiding notch (23) matched with the guide rail (11).
5. A centrifugal spray dryer for easy cleaning according to claim 4, characterized in that The lead screw (4) is rotatably installed in the dry room (1), the lead screw (4) is located in the middle of the dry room (1), and a continuous spiral sliding groove (41) is formed in the rod body of the lead screw (4); The sliding seat (5) is slidably installed on the lead screw (4), the sliding hole (51) matched with the rod body of the lead screw (4) is formed in the sliding seat (5), the embedding groove (52) is formed in the inner side wall of the sliding hole (51), the ball (53) is movably arranged in the embedding groove (52), and the part of the ball (53) extending out of the slot of the embedding groove (52) is rotatably installed in the spiral sliding groove (41); The two scraping materials (2) and the two sliding seats (5) are detachably connected; The connecting rod (6) is fixedly connected to the bottom of the lead screw (4), and the two inclined scrapers (61) are fixedly installed on the connecting rod (6).
6. A centrifugal spray dryer for easy cleaning according to claim 5, characterized in that The two mounting plates (54) are fixedly installed on the sliding seat (5), and the ends of the two connecting plates (21) are respectively bolted on the two mounting plates (54).
7. A centrifugal spray dryer for ease of cleaning according to claim 6, wherein The first support (7) and the second support (8) are fixedly installed on the inner wall of the dry room (1), and the two ends of the lead screw (4) are rotatably installed on the first support (7) and the second support (8).