CN211552377U

CN211552377U - Continuous drying device of heat pump

Info

Publication number: CN211552377U
Application number: CN202020163655.1U
Authority: CN
Inventors: 唐伟平
Original assignee: Shenzhen On Xi Green Energy Technology Co ltd
Current assignee: Shenzhen On Xi Green Energy Technology Co ltd
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-09-22
Anticipated expiration: 2030-02-11

Abstract

The application discloses a heat pump continuous drying device, which comprises a drying box, a drying conveyor belt positioned in the drying box, and a heat pump communicated with a hot air pipe on the inner wall of the drying box; the drying conveyor belt comprises a plurality of conveyor belt units which are sequentially arranged from top to bottom in a staggered manner; a plurality of scraping plates are distributed on the drying conveyor belt, the bottoms of the scraping plates are abutted to the upper surface of the drying conveyor belt, and threads at two ends of each scraping plate are sleeved on two first lead screws. According to the drying device, the scraper is arranged on the drying conveyor belt, materials on the drying conveyor belt can be scraped back and forth through the lead screw in the scraper drying process, so that the materials can be turned over, and further the materials to be dried can be in full contact with hot air; the water drops of condensation on the inner wall of the top of the drying box are scraped by utilizing the rubber strips on the condensate collecting tank and collected in the condensate collecting tank, so that the water drops can be prevented from dropping on materials in the drying process, and the drying difficulty is increased.

Description

Continuous drying device of heat pump

Technical Field

The utility model relates to a heat pump drying equipment field, in particular to continuous drying device of heat pump.

Background

The drying is a process of heating the material to be dried by air by means of convection heat exchange between hot air and the material to be dried, so that moisture in the material is vaporized and escaped to obtain the solid material with the required moisture content. Because the dried materials are convenient to use, store and transport, in recent years, the drying technology, particularly the heat pump dryer, is widely applied.

Heat pump drying-machine of prior art, in order to realize continuous drying, often can set up a plurality of conveyer belt units that from top to bottom set up by mistake in proper order in the inside of drying-machine, at the stoving in-process, the material follows the motion of last layer conveyer belt unit, and drop in proper order on the next layer conveyer belt unit, the material is at the in-process of following the conveyer belt unit and removing, the material often is motionless, and current heat pump drying-machine also does not dispose the corresponding mechanism of stirring the material, make the material just can obtain stirring when dropping on the next layer conveyer belt unit, cause easily like this to treat that the stoving material is difficult to fully contact with the hot-air, be unfavorable for the improvement of stoving effect. Secondly, at the stoving in-process, the moisture in the material is heated the evaporation and forms vapor, and vapor meets cold drying-machine inner wall and can condense at the in-process that rises and form the drop of water, and the drop of water more and more can drop to the top conveyer belt unit treat on the stoving material, and then increase the stoving degree of difficulty.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a continuous drying device of heat pump can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a heat pump continuous drying device comprises a drying box, a drying conveyor belt positioned in the drying box, and a heat pump communicated with a hot air pipe on the inner wall of the drying box;

the drying conveyor belt comprises a plurality of conveyor belt units which are sequentially staggered from top to bottom, the conveying directions of two adjacent conveyor units are opposite, the feeding end of the conveyor unit positioned at the topmost layer is positioned below the feeding hopper, the discharging end of the conveyor unit positioned at the bottommost layer is positioned above the feeding end of the discharging conveyor belt, and one end of the discharging conveyor belt penetrates out of the discharging port of the drying box;

the drying conveyor belt is provided with a plurality of scraping plates, the bottoms of the scraping plates are abutted to the upper surface of the drying conveyor belt, threads at two ends of each scraping plate are sleeved on two first lead screws, and two ends of each first lead screw are rotatably arranged on the inner wall of the drying box through bearings.

Preferably, the inside of stoving case is provided with open-top's condensate collecting tank, condensate collecting tank's bottom integrated into one piece has the silk braid, the both ends screw thread suit of silk braid is on two No. two lead screws.

Preferably, the one end of a lead screw and No. two lead screws is all connected with the connecting axle through the shaft coupling, the one end of connecting axle runs through to the outside of stoving case, the connecting axle is located one of stoving case outside and serves the cover and is equipped with from the driving wheel, be connected through synchronous belt drive between follow driving wheel and the action wheel, the action wheel suit is on the output shaft of motor, the motor passes through the screw fixation on the outer wall of stoving case.

Preferably, the second screw rod and the first screw rod are parallel to each other, the distance between the two second screw rods is equal to the distance between the two first screw rods, and the second screw rod is located right above the first screw rod.

Preferably, the condensate collecting tank is located between the inner wall of the top of the drying box and the drying conveyor belt, a rubber strip is arranged in the middle of the condensate collecting tank, the top of the rubber strip is abutted to the inner wall of the top of the drying box, and a telescopic rod is connected between the bottom of the rubber strip and the condensate collecting tank.

Preferably, the telescopic link includes the outer pole of being connected with the rubber strip and the interior pole of being connected with condensate collecting tank inner wall, the top at interior pole is adorned to outer pole suit, the cover is equipped with the spring between outer pole and the condensate collecting tank.

Preferably, the symmetrical welding has No. two baffles on the lateral wall of stoving case, No. two baffles are located the both sides of stoving conveyer belt, form the comdenstion water circulation passageway between No. two baffles and the inner wall of stoving case, the bar hole has been seted up at the top of No. two baffles, the both ends of comdenstion water collecting vat are connected with the overflow pipe, the overflow pipe passes the bar hole and extends to in the comdenstion water circulation passageway.

Preferably, the bottom welding of stoving case has a baffle, it has a plurality of through-holes to distribute on the baffle, No. one the baffle is located exit conveyor's below, form the comdenstion water discharge chamber between the bottom inner wall of baffle and stoving case, the bottom in comdenstion water discharge chamber is connected with the drain pipe, the comdenstion water discharge chamber is linked together with the comdenstion water circulation passageway.

Compared with the prior art, the utility model discloses following beneficial effect has: according to the heat pump continuous drying device, the scraper is arranged on the drying conveyor belt, materials on the drying conveyor belt can be scraped back and forth through the lead screw in the scraper drying process, so that the materials can be turned over, the materials to be dried can be fully contacted with hot air, and the drying effect can be improved;

through the arrangement of the condensate collecting tank, in the drying process, as the materials to be dried contain moisture, water is heated and evaporated to form steam in the drying process, the steam rises to meet the cold inner wall of the drying box and can be condensed to form water drops, the water drops condensed on the inner wall of the top of the drying box are scraped by the rubber strip on the condensate collecting tank and are collected in the condensate collecting tank, so that the water drops can be prevented from dropping on the materials in the drying process, and the drying difficulty is increased;

the spring is sleeved on the telescopic rod, so that the rubber strip for scraping the water drops can always keep abutting against the inner wall of the drying box, and the effect of scraping the water drops by the rubber strip is ensured;

through the setting of comdenstion water circulation passageway for in the comdenstion water that collects in the comdenstion water collecting vat can flow to the comdenstion water circulation passageway from the overflow pipe at both ends, and assemble the comdenstion water discharge intracavity of bottom from the comdenstion water circulation passageway, discharge from the drain pipe.

Drawings

Fig. 1 is an overall schematic view of a heat pump continuous drying device according to the present invention;

fig. 2 is a schematic view of scraper installation of the heat pump continuous drying device of the present invention;

fig. 3 is a schematic cross-sectional view of a condensate collecting tank of the heat pump continuous drying device of the present invention;

fig. 4 is a schematic view of a condensed water collecting tank of the heat pump continuous drying device of the present invention;

fig. 5 is a schematic view of the installation of a second partition plate of the continuous drying device of the heat pump of the present invention;

fig. 6 is the utility model discloses a heat pump continuous drying device's comdenstion water circulation passageway distribution sketch map.

In the figure: 1. a drying box; 2. a feed hopper; 3. drying the conveyor belt; 4. a discharge conveyor belt; 5. a discharge port; 6. a heat pump; 7. a hot air pipe; 8. a connecting shaft; 9. a first screw rod; 10. a squeegee; 11. a driven wheel; 12. a driving wheel; 13. a synchronous belt; 14. a motor; 15. a first separator plate; 16. a through hole; 17. a condensed water discharge chamber; 18. a drain pipe; 19. a second screw rod; 20. a condensed water collecting tank; 21. a rubber strip; 22. sleeving the silk; 23. a telescopic rod; 24. an overflow pipe; 25. an outer rod; 26. an inner rod; 27. a spring; 28. a second separator plate; 29. a strip-shaped hole; 30. a condensed water flow channel.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-6, a heat pump continuous drying device comprises a drying box 1, a drying conveyor belt 3 positioned in the drying box 1, and a heat pump 6 communicated with a hot air pipe 7 on the inner wall of the drying box 1;

the drying conveyor belt 3 comprises a plurality of conveyor belt units which are sequentially staggered from top to bottom, the conveying directions of two adjacent conveyor units are opposite, the feeding end of the conveyor unit positioned at the topmost layer is positioned below the feeding hopper 2, the discharging end of the conveyor unit positioned at the bottommost layer is positioned above the feeding end of the discharging conveyor belt 4, and one end of the discharging conveyor belt 4 penetrates out of the discharging port 5 of the drying box 1; materials on the upper layer of conveyor belt unit can fall downwards into the lower layer of conveyor belt unit when reaching the tail end along the conveying direction of the materials, and the conveyor belt units on different layers are independently driven by driving structures arranged outside the drying box 1 respectively, so that the materials are conveyed downwards layer by layer;

the drying and conveying device is characterized in that a plurality of scraping plates 10 are distributed on the drying and conveying belt 3, the bottoms of the scraping plates 10 are abutted to the upper surface of the drying and conveying belt 3, threads at two ends of each scraping plate 10 are sleeved on two first lead screws 9, and two ends of each first lead screw 9 are rotatably installed on the inner wall of the drying box 1 through bearings.

Referring to fig. 1 and 4, a condensate collecting tank 20 with an open top is arranged inside the drying box 1, a screw sleeve 22 is integrally formed at the bottom of the condensate collecting tank 20, and two ends of the screw sleeve 22 are sleeved on two second screw rods 19 in a threaded manner.

Referring to fig. 1-2, one end of the first screw rod 9 and one end of the second screw rod 19 are both connected with the connecting shaft 8 through a coupler, one end of the connecting shaft 8 penetrates through the outside of the drying box 1, one end, located at the outside of the drying box 1, of the connecting shaft 8 is sleeved with a driven wheel 11, the driven wheel 11 is in transmission connection with a driving wheel 12 through a synchronous belt 13, the driving wheel 12 is sleeved on an output shaft of a motor 14, and the motor 14 is fixed on the outer wall of the drying box 1 through screws.

Referring to fig. 1, the second lead screw 19 and the first lead screw 9 are parallel to each other, the distance between the two second lead screws 19 is equal to the distance between the two first lead screws 9, and the second lead screw 19 is located right above the first lead screw 9.

By adopting the technical scheme, the scraper 10 is arranged on the drying conveyor belt 3, and materials on the drying conveyor belt 3 can be scraped back and forth by the scraper 10 in the drying process through the lead screw, so that the materials can be turned over, further the materials to be dried can be fully contacted with hot air, and the drying effect can be improved;

because the first screw rod 9 and the second screw rod 19 are parallel to each other, and the second screw rod 19 is positioned right above the first screw rod 9, the driven wheels 11 at one ends of the first screw rod 9 and the second screw rod 19 are positioned on the same straight line, so that one motor 14 can drive the first screw rod 9 and the second screw rod 19 to rotate through the synchronous belt 13, the use of a power device is favorably reduced, and the equipment cost is reduced.

Referring to fig. 1, the condensate collecting tank 20 is located between the inner wall of the top of the drying box 1 and the drying conveyor belt 3, a rubber strip 21 is arranged in the middle of the condensate collecting tank 20, the top of the rubber strip 21 abuts against the inner wall of the top of the drying box 1, and an expansion rod 23 is connected between the bottom of the rubber strip 21 and the condensate collecting tank 20.

Referring to fig. 3-4, the telescopic rod 23 includes an outer rod 25 connected to the rubber strip 21 and an inner rod 26 connected to the inner wall of the condensate collecting tank 20, the outer rod 25 is sleeved on the top of the inner rod 26, and a spring 27 is sleeved between the outer rod 25 and the condensate collecting tank 20.

By adopting the technical scheme, through the arrangement of the condensate collecting tank 20, in the drying process, as the materials to be dried contain moisture, water is heated and evaporated to form vapor in the drying process, the vapor rises to meet the inner wall of the cold drying box 1 and can be condensed to form water drops, the rubber strips 21 on the condensate collecting tank 20 are utilized to scrape the water drops condensed on the inner wall of the top of the drying box 1 and collect the water drops in the condensate collecting tank 20, so that the water drops can be prevented from dropping on the materials in the drying process, and the drying difficulty is increased;

through suit spring 27 on telescopic link 23, can be so that scrape the rubber strip 21 of drop of water and can remain throughout and offset with the inner wall of stoving case 1 to guarantee the effect of scraping off of rubber strip 21 to the drop of water.

Referring to fig. 5-6, the symmetrical welding has No. two baffles 28 on the lateral wall of stoving case 1, No. two baffles 28 are located the both sides of stoving conveyer belt 3, form comdenstion water circulation passageway 30 between No. two baffles 28 and the inner wall of stoving case 1, No. two strip holes 29 have been seted up at the top of No. two baffles 28, the both ends of comdenstion water collecting tank 20 are connected with overflow pipe 24, overflow pipe 24 passes strip hole 29 and extends to in the comdenstion water circulation passageway 30.

Referring to fig. 1 and 6, a first partition 15 is welded at the bottom of the drying box 1, a plurality of through holes 16 are distributed on the first partition 15, the first partition 15 is located below the discharging conveyor belt 4, a condensed water discharge cavity 17 is formed between the first partition 15 and the inner wall of the bottom of the drying box 1, a drain pipe 18 is connected to the bottom of the condensed water discharge cavity 17, and the condensed water discharge cavity 17 is communicated with a condensed water circulation channel 30.

By adopting the above technical scheme, through the arrangement of the condensed water circulation channel 30, the condensed water collected in the condensed water collecting tank 20 can flow into the condensed water circulation channel 30 from the overflow pipes 24 at both ends, and is collected into the condensed water discharge cavity 17 at the bottom from the condensed water circulation channel 30, and is discharged from the drain pipe 18.

It should be noted that, the utility model relates to a heat pump continuous drying device, when using, the material to be dried is poured into from the feeder hopper 2, and falls on the drying conveyor belt 3 at the top, and falls on the next conveyor belt unit from the end of the last layer conveyor belt unit in turn, and discharges from the discharge port 5 until falling on the discharge conveyor belt 4, in this process, the heat pump 6 inputs the hot air into the hot air pipe 7 on the inner wall of the drying box 1, and blows out from the air hole on the hot air pipe 7, and the material to be dried is dried by hot air; the motor 14 drives the driving wheel 12 to rotate, the driving wheel 12 drives the driven wheel 11 to rotate through the synchronous belt 13, the driven wheel 11 drives the first lead screw 9 and the second lead screw 19 to rotate, and in the process of rotating the first lead screw 9, the scraper 10 on the first lead screw 9 moves back and forth under the action of threads to turn over the materials to be dried on the drying conveyor belt 3, so that the materials are in more sufficient contact with hot air; no. two lead screws 19 are at rotatory in-process, under the effect of screw thread, condensate collecting groove 20 is along No. two lead screws 19 round trip movement, rubber strip 21 is round trip movement thereupon also, the rubber strip 21 round trip movement in-process, scrape the drop of water of condensation on stoving case 1 top inner wall down, condensate collecting groove 20 connects greatly the drop of water of scraping, the comdenstion water that connects greatly is discharged to condensate water circulation passageway 30 from the overflow pipe 24 at condensate collecting groove 20 both ends in, and assemble in condensate water discharge chamber 17 from condensate water circulation passageway 30, discharge from drain pipe 18 at last.

Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. A heat pump continuous drying device comprises a drying box (1), a drying conveyor belt (3) positioned in the drying box (1), and a heat pump (6) communicated with a hot air pipe (7) on the inner wall of the drying box (1); the method is characterized in that:

the drying conveyor belt (3) comprises a plurality of conveyor belt units which are sequentially staggered from top to bottom, the conveying directions of two adjacent conveyor units are opposite, the feeding end of the conveyor unit positioned at the topmost layer is positioned below the feeding hopper (2), the discharging end of the conveyor unit positioned at the bottommost layer is positioned above the feeding end of the discharging conveyor belt (4), and one end of the discharging conveyor belt (4) penetrates out of the discharging port (5) of the drying box (1);

the drying and conveying device is characterized in that a plurality of scraping plates (10) are distributed on the drying and conveying belt (3), the bottoms of the scraping plates (10) are abutted to the upper surface of the drying and conveying belt (3), threads at two ends of each scraping plate (10) are sleeved on two first lead screws (9), and two ends of each first lead screw (9) are rotatably installed on the inner wall of the drying box (1) through bearings.

2. The heat pump continuous drying device of claim 1, wherein: the drying box is characterized in that a condensate collecting tank (20) with an open top is arranged inside the drying box (1), a screw sleeve (22) is integrally formed at the bottom of the condensate collecting tank (20), and threads at two ends of the screw sleeve (22) are sleeved on two second screw rods (19).

3. The heat pump continuous drying device of claim 2, characterized in that: the one end of a lead screw (9) and No. two lead screws (19) all is connected with connecting axle (8) through the shaft coupling, the one end of connecting axle (8) runs through to the outside of stoving case (1), connecting axle (8) are located one of stoving case (1) outside and serve the cover and be equipped with from driving wheel (11), be connected through hold-in range (13) transmission between driving wheel (11) and action wheel (12), action wheel (12) suit is on the output shaft of motor (14), motor (14) pass through the screw fixation on the outer wall of stoving case (1).

4. The heat pump continuous drying device of claim 3, wherein: the second screw rod (19) and the first screw rod (9) are parallel to each other, the distance between the second screw rod (19) is equal to the distance between the first screw rod (9), and the second screw rod (19) is located right above the first screw rod (9).

5. The heat pump continuous drying device of claim 4, wherein: the condensed water collecting tank (20) is located between the inner wall of the top of the drying box (1) and the drying conveyor belt (3), a rubber strip (21) is arranged in the middle of the condensed water collecting tank (20), the top of the rubber strip (21) is abutted to the inner wall of the top of the drying box (1), and a telescopic rod (23) is connected between the bottom of the rubber strip (21) and the condensed water collecting tank (20).

6. The heat pump continuous drying device of claim 5, wherein: the telescopic rod (23) comprises an outer rod (25) connected with the rubber strip (21) and an inner rod (26) connected with the inner wall of the condensed water collecting tank (20), the outer rod (25) is sleeved on the top of the inner rod (26), and a spring (27) is sleeved between the outer rod (25) and the condensed water collecting tank (20).

7. The heat pump continuous drying device of claim 6, wherein: the utility model discloses a drying box, including stoving case (1), No. two baffle (28) of symmetry welding on the lateral wall of stoving case (1), No. two baffle (28) are located the both sides of stoving conveyer belt (3), form comdenstion water circulation passageway (30) between the inner wall of No. two baffle (28) and stoving case (1), bar hole (29) have been seted up at the top of No. two baffle (28), the both ends of comdenstion water collecting vat (20) are connected with overflow pipe (24), overflow pipe (24) pass bar hole (29) and extend to in comdenstion water circulation passageway (30).

8. The heat pump continuous drying device of claim 7, wherein: the bottom welding of stoving case (1) has baffle (15) No. one, it has a plurality of through-holes (16) to distribute on baffle (15), baffle (15) are located the below of exit conveyor (4), form comdenstion water discharge chamber (17) between the bottom inner wall of baffle (15) and stoving case (1), the bottom in comdenstion water discharge chamber (17) is connected with drain pipe (18), comdenstion water discharge chamber (17) are linked together with comdenstion water circulation passageway (30).