LTAPE disc type scraper dryer

Abstract

The invention discloses an LTAPE disc type scraper dryer, and belongs to the technical field of dryers, the LTAPE disc type scraper dryer comprises a housing, the top of the housing is provided with a feed port, the bottom of the housing is provided with a discharge port, the inner wall of the housing is provided with a plurality of heating discs, the plurality of heating discs are communicated through a guide pipe, one side of the housing is provided with an air inlet end and an air outlet end, and the air inlet end and the air outlet end are communicated through a guide pipe. The inner wall of the machine shell is rotatably connected with a rotating shaft, the bottom of the machine shell is fixedly provided with a scraper stirrer, the scraper stirrer is fixedly connected with the rotating shaft, the rotating shaft is fixedly provided with a plurality of scrapers, and the scrapers are matched with the heating disc. The device is small in occupied area, high in safety coefficient and convenient for people to use, and runs at low temperature and normal pressure by using the low-temperature heat pump as an energy source.

Description

Technical Field

[0001] The invention belongs to the technical field of drying machines, and in particular relates to a LTAPE disc scraper drying machine. Background Art

[0002] The existing dryer types mainly include belt dryer, disc scraper dryer, external scraper drum dryer, internal scraper drum dryer, and the heat sources used mainly include steam, high-temperature thermal oil, and low-temperature heat pump;

[0003] At present, the disc scraper dryer uses steam and heat transfer oil to heat the disc wall to dry the material on the disc surface, and uses a fan to extract the generated steam during the process.

[0004] However, the disc scraper dryer can only use high-temperature heat sources such as steam or thermal oil when in use, which cannot be provided in some occasions. ;

[0005] In order to solve the above problems, the present application proposes a LTAPE disc scraper dryer. Summary of the invention

[0006] In view of the problems in the related art, the present invention proposes a LTAPE disc scraper dryer to overcome the above technical problems existing in the existing related art.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] The LTAPE disc scraper dryer comprises a casing, a material inlet is installed on the top of the casing, a material outlet is installed on the bottom of the casing, a plurality of heating plates are installed on the inner wall of the casing, the plurality of heating plates are connected through a conduit, an air inlet end and an air outlet end are installed on one side of the casing, a rotating shaft is rotatably connected on the inner wall of the casing, a scraper mixer is fixedly installed on the bottom of the casing, the scraper mixer is fixedly connected to the rotating shaft, a plurality of scrapers are fixedly installed on the rotating shaft, and the scrapers cooperate with the heating plates;

[0009] The crushing mechanism is installed on the top inner wall of the casing, is drivingly connected with the rotating shaft, and cooperates with the feed port.

[0010] Preferably, a circulation pump is installed on one side of the casing, and the circulation pump is connected to the heating plate.

[0011] By setting up the circulation pump, it is convenient to inject the external heat source and circulate it, so as to facilitate the heating operation of all the heating plates.

[0012] Preferably, a heat pump compressor is provided on the outside of the casing, a heat pump condenser is installed at the bottom of the heat pump compressor, one side of the heat pump condenser is connected to the circulation pump, and the other side of the heat pump condenser is connected to the lowest heating plate among the multiple heating plates.

[0013] The heat pump compressor compresses the refrigerant (Freon) to generate heat, which heats the hot water in the heat pump condenser to about ℃, and the hot water is pumped into the heating plate through a circulation pump.

[0014] Preferably, a circulation fan is installed on one side of the casing, and the air outlet of the circulation fan is connected to the air inlet end.

[0015] By setting the circulating fan, hot air can be injected into the interior of the casing through the air inlet end, and then the hot air can be blown into the interior of the casing through the bottom of the casing.

[0016] Preferably, a heat pump surface cooler is provided on the outer side of the casing, an energy saver is connected to the heat pump surface cooler, the energy saver is connected to the circulation fan, and the heat pump surface cooler is connected to the air outlet.

[0017] The circulating air enters the heat pump cooler. Due to the low temperature on the surface of the heat pump cooler, condensed water is precipitated on the heat pump cooler and dehumidified. The dehumidified hot air is preheated by the economizer again and enters the heating plate in the casing to dehumidify.

[0018] Preferably, the heating discs are placed in multiple layers at equal distances, and the heating discs are arranged at different inclinations, and two adjacent heating discs are placed in a staggered manner.

[0019] By equidistantly and obliquely arranging multiple heating plates, the wet material can flow smoothly and slowly from top to bottom, and by staggered placement of two adjacent heating plates, the wet material can fully contact the heating plates in turn, thereby achieving a better heating and drying effect.

[0020] Preferably, the crushing mechanism includes a pressure rod, a positioning seat is fixedly installed on the top inner wall of the casing, a first slide bar and a second slide bar are slidably connected to the positioning seat, and a plurality of pressure rods are respectively installed on the side where the first slide bar and the second slide bar are close to each other.

[0021] The first slide bar and the second slide bar are slidably connected to the positioning seat, so that the first slide bar and the second slide bar can be limited, and the arrangement of multiple pressure rods can facilitate the back and forth shearing and crushing of the incoming materials.

[0022] Preferably, a baffle is fixedly mounted on one side of the first slide bar and the second slide bar, an eccentric wheel is fixedly mounted on the rotating shaft, and the eccentric wheel cooperates with the two baffles.

[0023] The rotating eccentric wheel cooperates with the two baffles to drive the first slide bar and the second slide bar to move back and forth.

[0024] Preferably, return springs are fixedly mounted on both sides of the positioning seat, a positioning plate is fixedly mounted on the second slide rod, and two return springs are fixedly connected to the corresponding baffle plate and the positioning plate respectively.

[0025] Under the action of the baffle plate and the positioning plate, the return spring can easily drive the first slide bar and the second slide bar to move back and forth.

[0026] In summary, the technical effects and advantages of the present invention are as follows:

[0027] 1. Small footprint: Through the vertical stacking form, the processing capacity of the disc scraper dryer depends on the number of stacking layers. With the same footprint, it has the largest heat exchange area.

[0028] 2. Use low-temperature heat pumps as energy: When there is no low-cost energy such as steam or natural gas on site, using low-temperature heat pumps is the best choice to achieve energy saving.

[0029] 3. Low operating temperature and normal pressure operation conditions:

[0030] The working temperature on the material side is 50-55℃ and the pressure is normal pressure, which makes the system configuration more flexible and has advantages that closed structures do not have;

[0031] ①Operating at low temperature and normal pressure, with high safety factor;

[0032] ②Dry the material under normal pressure, allowing a certain air leakage rate in the machine body, and no vacuum measures such as vacuum pumps are required. The feeding and discharging processes are both open, with a simple and stable structure and high reliability.

[0033] ③When operating at low temperature and normal pressure, the thickness of the plate only needs to maintain itself from deformation. There is no pressure requirement, so the thickness of the plate can be greatly reduced.

[0034] ④When operating at low temperature, the scraper can be made of wear-resistant and corrosion-resistant Teflon material, which causes little wear to the plate and prolongs the service life of the machine.

[0035] ⑤ It operates under low temperature and normal pressure, and can be better matched with anti-corrosion materials. For example, some materials containing fluorine, chlorine, and acid can be flexibly matched with titanium composite plates and Hastelloy composite plates, and the overall cost is low.

[0036] 4. Overall countercurrent heat exchange, good heat exchange effect.

[0037] Hot water and hot air enter from the bottom and move upward, while materials enter from the top and move downward, realizing countercurrent heat exchange with good heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the principle process structure of the present invention;

[0039] Figure 2 It is a schematic diagram of the internal structure of the casing of the present invention;

[0040] Figure 3 It is a schematic diagram of the structure of the crushing mechanism of the present invention.

[0041] In the figure:

[0042] 1. Casing; 2. Feed inlet; 3. Discharge outlet; 4. Heating plate; 5. Circulation pump; 6. Heat pump compressor; 7. Heat pump condenser; 8. Heat pump cooler; 9. Economizer; 10. Circulation fan; 11. Air inlet; 12. Air outlet; 13. Scraper mixer; 14. Rotating shaft; 15. Scraper; 16. Positioning seat; 17. First slide bar; 18. Second slide bar; 19. Eccentric wheel; 20. Baffle; 21. Positioning plate; 22. Return spring; 23. Pressure rod. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] Reference Figure 1-Figure 3 The LTAPE disc scraper dryer comprises a casing 1, a feed port 2 is installed on the top of the casing 1, a discharge port 3 is installed on the bottom of the casing 1, a plurality of heating plates 4 are installed on the inner wall of the casing 1, and the plurality of heating plates 4 are connected through a conduit, an air inlet end 11 and an air outlet end 12 are installed on one side of the casing 1, a rotating shaft 14 is rotatably connected on the inner wall of the casing 1, a scraper mixer 13 is fixedly installed on the bottom of the casing 1, the scraper mixer 13 is fixedly connected to the rotating shaft 14, a plurality of scrapers 15 are fixedly installed on the rotating shaft 14, and the scrapers 15 cooperate with the heating plates 4;

[0045] The crushing mechanism is installed on the top inner wall of the casing 1 and is transmission-connected to the rotating shaft 14 and cooperates with the feed port 2 .

[0046] Reference Figure 1 A circulation pump 5 is installed on one side of the casing 1, and the circulation pump 5 is connected to the heating disk 4. Through the setting of the circulation pump 5, it is convenient to inject an external heat source and circulate it, so as to facilitate the heating operation of all the heating disks 4.

[0047] Reference Figure 1A heat pump compressor 6 is provided on the outside of the casing 1, and a heat pump condenser 7 is installed at the bottom of the heat pump compressor 6. One side of the heat pump condenser 7 is connected to the circulation pump 5, and the other side of the heat pump condenser 7 is connected to the heating disk 4 located at the bottom among the multiple heating disks 4. The heat pump compressor 6 compresses the refrigerant Freon to generate heat, and the hot water is heated in the heat pump condenser 7. The hot water is heated to about 60°C, and the hot water is pumped into the heating disk 4 through the circulation pump 5.

[0048] Reference Figure 1 A circulation fan 10 is installed on one side of the casing 1, and the air outlet of the circulation fan 10 is connected to the air inlet end 11. Through the setting of the circulation fan 10, hot air can be injected into the casing 1 through the air inlet end 11, so that hot air is blown into the casing 1 through the bottom of the casing 1.

[0049] Reference Figure 1 A heat pump cooler 8 is provided on the outside of the casing 1, and an energy saver 9 is connected to the heat pump cooler 8. The energy saver 9 is connected to the circulating fan 10, and the heat pump cooler 8 is connected to the air outlet 12. The circulating air enters the heat pump cooler 8. Due to the low temperature on the surface of the heat pump cooler 8, condensed water is precipitated on the heat pump cooler 8 and dehumidified. The dehumidified hot air is preheated by the energy saver 9 again and enters the heating disk 4 in the casing 1 to carry moisture.

[0050] Reference Figure 1 The heating plates 4 are placed in multiple layers at equal distances, and the heating plates 4 are set at different inclinations, and the two adjacent heating plates 4 are staggered. Through the equidistant and inclined setting of multiple heating plates 4, the wet material can flow smoothly and slowly from top to bottom, and through the staggered placement of two adjacent heating plates 4, the wet material can fully contact with the heating plates 4 in turn, thereby achieving a better heating and drying effect.

[0051] Reference Figure 2 The crushing mechanism includes a pressure rod 23, a positioning seat 16 is fixedly installed on the top inner wall of the casing 1, and a first slide bar 17 and a second slide bar 18 are slidably connected to the positioning seat 16. Multiple pressure rods 23 are respectively installed on the side where the first slide bar 17 and the second slide bar 18 are close to each other. Through the sliding connection between the first slide bar 17 and the second slide bar 18 and the positioning seat 16, the first slide bar 17 and the second slide bar 18 can be limited, and through the arrangement of multiple pressure rods 23, the incoming material can be easily sheared and crushed back and forth.

[0052] Reference Figure 2 A baffle 20 is fixedly installed on one side of the first slide bar 17 and the second slide bar 18, and an eccentric wheel 19 is fixedly installed on the rotating shaft 14. The eccentric wheel 19 cooperates with the two baffles 20. The rotating eccentric wheel 19 cooperates with the two baffles 20, thereby driving the first slide bar 17 and the second slide bar 18 to move back and forth.

[0053] Reference Figure 3 , return springs 22 are fixedly installed on both sides of the positioning seat 16, and a positioning plate 21 is fixedly installed on the second slide bar 18. The two return springs 22 are fixedly connected to the corresponding baffle plate 20 and the positioning plate 21 respectively. Under the action of the baffle plate 20 and the positioning plate 21, the return springs 22 can easily drive the first slide bar 17 and the second slide bar 18 to move back and forth.

[0054] Working principle: Hot water process: The heat pump compressor 6 compresses the refrigerant Freon to generate heat, and heats the hot water in the heat pump condenser 7 to about 60°C. The hot water is pumped into the heating plate 4 through the circulation pump 5, and the temperature of the material is reduced to 50-55°C after inter-wall heat transfer, and returns to the heat pump condenser 7 to be reheated to 60°C for recycling.

[0055] Hot air process: After the hot air is preheated to 40°C by the economizer 9, it enters from the bottom and blows through the surface of the heating plate 4, contacts the hot material, so that the moisture of the material enters the circulating air, and finally the circulating air is blown out from the top, and its humidity rises to 100% RH; the circulating air enters the heat pump surface cooler 8, and due to the low temperature on the surface of the heat pump surface cooler 8, condensed water is precipitated on the heat pump surface cooler 8 and dehumidified, and the dehumidified hot air is preheated by the economizer 9 again and enters the heating plate 4 to carry moisture.

[0056] Material flow: The material to be dried enters from the feed port 2 at the top of the housing 1, passes through several layers of heating plates 4 from top to bottom, and the moisture is dried layer by layer, and finally becomes dry material and falls from the bottom. On each layer of heating plate 4, the scraper 15 rotating from the center continuously smears on the heating plate 4 to achieve the purpose of efficient heat transfer, and under the action of the heating plates 4 with different inclinations, it is transferred to the lower layer, and finally falls from the lower layer and is collected in the container.

[0057] When the shaft 14 rotates, the rotating shaft 14 drives the eccentric wheel 19 to rotate, and the rotating eccentric wheel 19 cooperates with the two baffles 20 to drive the first slide bar 17 and the second slide bar 18 to move back and forth. The first slide bar 17 and the second slide bar 18 are slidably connected to the positioning seat 16, so that the first slide bar 17 and the second slide bar 18 can be limited, and through the setting of multiple pressure rods 23, the incoming material can be easily sheared and crushed back and forth, so that the incoming material can be evenly distributed on the heating plate 4. Under the action of the baffle 20 and the positioning plate 21, the return spring 22 can easily drive the first slide bar 17 and the second slide bar 18 to move back and forth.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A LTAPE disc scraper dryer, comprising a housing (1), characterized in that: The top of the casing (1) is provided with a material inlet (2), the bottom of the casing (1) is provided with a material outlet (3), a plurality of heating plates (4) are provided on the inner wall of the casing (1), the plurality of heating plates (4) are connected via a conduit, an air inlet end (11) and an air outlet end (12) are provided on one side of the casing (1), a rotating shaft (14) is rotatably connected to the inner wall of the casing (1), a scraper mixer (13) is fixedly provided at the bottom of the casing (1), the scraper mixer (13) is fixedly connected to the rotating shaft (14), a plurality of scrapers (15) are fixedly provided on the rotating shaft (14), and the scrapers (15) cooperate with the heating plates (4); The crushing mechanism is mounted on the top inner wall of the casing (1), is drivingly connected to the rotating shaft (14), and cooperates with the feed port (2).

2. The LTAPE disc scraper dryer according to claim 1, characterized in that: A circulation pump (5) is installed on one side of the casing (1), and the circulation pump (5) is connected to the heating plate (4).

3. The LTAPE disc scraper dryer according to claim 2, characterized in that: A heat pump compressor (6) is provided on the outside of the casing (1), a heat pump condenser (7) is installed at the bottom of the heat pump compressor (6), one side of the heat pump condenser (7) is connected to the circulation pump (5), and the other side of the heat pump condenser (7) is connected to the heating disk (4) located at the bottom among the multiple heating disks (4).

4. The LTAPE disc scraper dryer according to claim 1, characterized in that: A circulation fan (10) is installed on one side of the casing (1), and an air outlet of the circulation fan (10) is connected to an air inlet end (11).

5. The LTAPE disc scraper dryer according to claim 4, characterized in that: A heat pump cooler (8) is provided on the outside of the casing (1), an energy saver (9) is connected to the heat pump cooler (8), the energy saver (9) is connected to a circulation fan (10), and the heat pump cooler (8) is connected to an air outlet (12).

6. The LTAPE disc scraper dryer according to claim 1, characterized in that: The heating discs (4) are placed in multiple layers at equal distances, and the heating discs (4) are arranged at different inclinations, and two adjacent heating discs (4) are placed in an offset manner.

7. The LTAPE disc scraper dryer according to claim 1, characterized in that: The crushing mechanism comprises a pressure rod (23), a positioning seat (16) is fixedly mounted on the top inner wall of the casing (1), a first sliding rod (17) and a second sliding rod (18) are slidably connected to the positioning seat (16), and a plurality of pressure rods (23) are respectively mounted on the side where the first sliding rod (17) and the second sliding rod (18) are close to each other.

8. The LTAPE disc scraper dryer according to claim 7, characterized in that: A baffle (20) is fixedly mounted on one side of the first slide bar (17) and the second slide bar (18), an eccentric wheel (19) is fixedly mounted on the rotating shaft (14), and the eccentric wheel (19) and the two baffles (20) cooperate with each other.

9. The LTAPE disc scraper dryer according to claim 8, characterized in that: Reset springs (22) are fixedly mounted on both sides of the positioning seat (16), a positioning plate (21) is fixedly mounted on the second slide bar (18), and the two reset springs (22) are fixedly connected to the corresponding baffle plate (20) and the positioning plate (21), respectively.

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