CN212512351U

CN212512351U - Novel soilless seedling raising plate drying equipment

Info

Publication number: CN212512351U
Application number: CN202021177390.7U
Authority: CN
Inventors: 刘明亮; 任志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-02-09
Anticipated expiration: 2030-06-23

Abstract

The utility model relates to the technical field of seedling tray drying equipment, in particular to novel soilless seedling tray drying equipment, which uses natural gas, reduces energy cost and energy loss, accords with the national environmental protection policy and improves the qualification rate of production products, and comprises a drying box and a steel wire conveying mesh belt, wherein the drying box is internally provided with a drying cavity, the left end and the right end of the drying box are both provided with an inlet and an outlet communicated with the drying cavity, and the steel wire conveying mesh belt is provided with a seedling tray; still include the natural gas burner, the bottom in stoving chamber is provided with the combustion chamber, stoving intracavity is provided with stoving pipeline and lower stoving pipeline, the bottom of going up the stoving pipeline and the top of stoving pipeline down all communicate and are provided with hot air nozzle, heated air circulation fan is all installed to the front end and the rear end of stoving case, be provided with the circulation air intake on the combustion chamber, the front end bottom of stoving case is provided with the air supply mouth, the top intercommunication of stoving case is provided with the moisture and discharges the nest of tubes, the output that the moisture discharged the nest of tubes is provided with the exhaust fan.

Description

Novel soilless seedling raising plate drying equipment

Technical Field

The utility model relates to a educate seedling tray drying equipment's technical field, especially relate to a novel soilless seedling tray drying equipment that educates.

Background

As is well known, the most critical equipment in the soilless seedling raising tray production line is drying equipment, because the soilless seedling raising tray needs to be dried and evaporated to evaporate a large amount of moisture, the length of a drying box in the traditional production line reaches 120 meters, in order to compress the length of a factory building, a multilayer structure is invented later, the problem that the grade ratio is too low is solved although the problem that the drying box is too long is solved, meanwhile, the existing drying boxes adopt coal as a heat source to heat conduction oil or directly burn a soil kiln, the current environmental protection requirements are not met, the environment is polluted, the heat efficiency is low, the production grade ratio is not high, for example, the multilayer tray type drying box has the product qualification rate of only 60-70 percent, the transmission mechanism is complex, mechanical faults easily occur, the produced product is greatly deformed, is distorted and tilted, and is pressurized and shaped at the later stage, and under the current national environmental protection situation is very severe, the coal-fired small boilers are eliminated from the market, the heat source is also placed in front of the enterprises in any mode, the electricity consumption cost is too high, and the coal-fired boilers replaced by natural gas also have the problems of energy conversion and energy loss.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an though use the natural gas, nevertheless reduce energy cost, reduce energy loss accords with the environmental protection policy of country, improves the novel soilless seedling tray drying equipment that educates of production product qualification rate.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the novel drying equipment for the soilless seedling raising tray further comprises a steel wire conveying mesh belt, a drying cavity is arranged inside the drying box, an inlet and an outlet which are communicated with the drying cavity are formed in the left end and the right end of the drying box, the steel wire conveying mesh belt penetrates through the drying cavity, and the seedling raising tray is placed on the steel wire conveying mesh belt; also comprises a drying box and a natural gas burner, the bottom of the drying cavity is provided with a combustion chamber, the output end of the natural gas burner extends into the combustion chamber, an upper drying pipeline and a lower drying pipeline are arranged in the drying cavity, the upper drying pipeline and the lower drying pipeline are respectively positioned above and below the steel wire conveying mesh belt, hot air nozzles are communicated with the bottom end of the upper drying pipeline and the top end of the lower drying pipeline, hot air circulating fans are mounted at the front end and the rear end of the drying box, the input ends of the two groups of hot air circulating fans are communicated with the combustion chamber, the output ends of the two groups of hot air circulating fans are communicated with the input ends of the upper drying pipeline and the lower drying pipeline, the combustion chamber is provided with a circulating air inlet, the bottom of the front end of the drying box is provided with an air supplementing opening, the top end of the drying box is communicated with a moisture discharge pipe group, and an exhaust fan is arranged at the output end of the moisture discharge pipe group.

Preferably, the output intercommunication of exhaust fan is provided with waste heat recovery device, waste heat recovery device includes the heat exchanger, the bottom air intake of heat exchanger and the output intercommunication of exhaust fan, the top air outlet of heat exchanger is provided with the exhaust pipe, and the inside of heat exchanger is provided with heat exchange coil.

Preferably, a filter screen is arranged at the position of the circulating air inlet.

Preferably, a plurality of groups of carrier rollers for conveying the steel wire conveying mesh belt are arranged in the drying cavity.

Preferably, the radial direction of the output end of the input port of the upper drying pipeline and the radial direction of the output port of the lower drying pipeline are gradually reduced.

Preferably, the drying box is provided with a plurality of groups, and the inlet and the outlet of the drying box are communicated end to end.

(III) advantageous effects

Compared with the prior art, the utility model provides a novel soilless seedling raising plate drying equipment possesses following beneficial effect:

1. the novel soilless seedling raising tray drying equipment carries out combustion heating in a combustion chamber through a natural gas burner, heat is brought to an upper drying pipeline and a lower drying pipeline through a hot air circulating fan and is sprayed out through a hot air nozzle, the seedling raising trays conveyed on a steel wire conveying net belt are dried, moisture generated by carrying and drying the seedling raising trays with hot air is discharged through a moisture discharge pipe group, the other part of hot air returns to the bottom of a drying cavity and then enters the combustion chamber through a circulating air inlet, the hot air circulates in the drying cavity, the hot air with a certain temperature returns to the combustion chamber, energy recycling is realized, energy loss is reduced, and the equipment conforms to the national environmental protection policy;

2. the novel drying equipment for the soilless seedling raising tray adopts the natural gas burner to directly burn and heat and circulate through hot air, and is more energy-saving compared with a heating mode of a natural gas boiler;

3. this novel soilless seedling raising tray drying equipment dries the seedling raising tray of middle transport through last drying tube way and lower drying tube way, and it is even to be heated from top to bottom, guarantees the effect of drying, improves the production product qualification rate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic side view of the natural gas burner of the present invention;

fig. 4 is a schematic side view of the heat exchanger according to the present invention;

fig. 5 is a schematic view of the present invention at a position a enlarged partially;

in the drawings, the reference numbers: 1. a drying box; 2. a steel wire conveying mesh belt; 3. a seedling raising plate; 4. a natural gas burner; 5. a combustion chamber; 6. an upper drying pipeline; 7. a lower drying duct; 8. a hot air nozzle; 9. a hot air circulating fan; 10. a circulating air inlet; 11. an air supply opening; 12. a moisture drain tube set; 13. an exhaust fan; 14. a heat exchanger; 15. an exhaust duct; 16. a heat exchange coil; 17. a filter screen; 18. and (4) a carrier roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-5, the utility model discloses a novel soilless seedling raising tray drying equipment, including drying box 1 and steel wire conveying mesh belt 2, be provided with multiunit bearing roller 18 that carries on the steel wire conveying mesh belt 2 in the stoving intracavity, support steel wire conveying mesh belt 2 through bearing roller 18, steel wire conveying mesh belt 2 is the existing structure, just is the circulation conveying mesh belt, and here is not repeated much, and drying box 1's inside is provided with the stoving chamber, and drying box 1's left end and right-hand member all are provided with the import and export that communicates with the stoving chamber, and steel wire conveying mesh belt 2 runs through the stoving chamber to seedling raising tray 3 has been placed on steel wire conveying mesh belt 2; the drying device is characterized by further comprising a natural gas combustor 4, a combustion chamber 5 is arranged at the bottom of the drying cavity, the output end of the natural gas combustor 4 extends into the combustion chamber 5, an upper drying pipeline 6 and a lower drying pipeline 7 are arranged in the drying cavity, the upper drying pipeline 6 and the lower drying pipeline 7 are respectively located above and below the steel wire conveying mesh belt 2, hot air nozzles 8 are respectively communicated with the bottom end of the upper drying pipeline 6 and the top end of the lower drying pipeline 7, hot air circulating fans 9 are respectively installed at the front end and the rear end of the drying box 1, the input ends of the two groups of hot air circulating fans 9 are respectively communicated with the combustion chamber 5, the output ends of the two groups of hot air circulating fans 9 are communicated with the input ends of the upper drying pipeline 6 and the lower drying pipeline 7, a circulating air inlet 10 is arranged on the combustion chamber 5, a filter screen 17 is arranged at the circulating air inlet 10, and gas entering the combustion chamber 5 is filtered, an air supplementing opening 11 is arranged at the bottom of the front end of the drying box 1, a moisture discharge pipe group 12 is communicated with the top end of the drying box 1, an exhaust fan 13 is arranged at the output end of the moisture discharge pipe group 12, the natural gas combustor 4 is used for combustion heating in the combustion chamber 5, heat is brought to an upper drying pipeline 6 and a lower drying pipeline 7 through a hot air circulating fan 9 and is sprayed out through a hot air nozzle 8 to dry the seedling raising tray 3 conveyed on the steel wire conveying mesh belt 2, one part of hot air carrying the moisture generated by drying the seedling raising tray 3 is discharged through the moisture discharge pipe group 12, the other part of hot air returns to the bottom of the drying chamber and then enters the combustion chamber 5 through a circulating air inlet 10, so that the hot air circulates in the drying chamber, the hot air with certain temperature returns to the combustion chamber 5, the reutilization of energy is realized, the loss of energy is reduced, and the energy loss, the output intercommunication of exhaust fan 13 is provided with waste heat recovery device, waste heat recovery device includes heat exchanger 14, the bottom air intake of heat exchanger 14 and the output intercommunication of exhaust fan 13, the top air outlet of heat exchanger 14 is provided with exhaust pipe 15, and the inside of heat exchanger 14 is provided with heat transfer coil pipe 16, still contains certain heat in getting into the gas of moisture discharge pipe group 12, and the heat in the gas carries out waste heat recovery through heat exchanger 14, and the heat of retrieving can be used for heating domestic water, also can be used for educating the heating of seedling tray 3 nutrient solution.

Go up drying duct 6 and drying duct 7 down's input port radial output end direction diminishes gradually, and the input wind pressure of going up drying duct 6 and drying duct 7 down is greater than the output wind pressure, sets gradually the structure of warping through the bore with last drying duct 6 and drying duct 7 down, guarantees that hot-blast nozzle 8 spun is hot-blast more even.

The drying boxes 1 are provided with a plurality of groups, and the inlet and the outlet of the drying boxes 1 are communicated end to end; through increasing the length of stoving passageway with 1 end to end connection of multiunit stoving case, convenient equipment accomplishes the effective stoving to educating seedling tray 3.

When in use, the natural gas burner 4 is used for burning and heating in the combustion chamber 5, the hot air circulating fan 9 is used for bringing heat to the upper drying pipeline 6 and the lower drying pipeline 7 and spraying the heat through the hot air nozzle 8 to dry the seedling raising tray 3 conveyed on the steel wire conveying mesh belt 2, the calibers of the upper drying pipeline 6 and the lower drying pipeline 7 are set into a gradually-deformed structure, the hot air sprayed by the hot air nozzle 8 is ensured to be more uniform, part of the hot air carrying the moisture generated by drying the seedling raising tray 3 is discharged through the moisture discharge pipe group 12, the gas entering the moisture discharge pipe group 12 still contains certain heat, the heat in the gas is subjected to waste heat recovery through the heat exchanger 14, the recovered heat can be used for heating domestic water and can also be used for heating the nutrient solution of the seedling raising tray 3, the other part of the hot air returns to the bottom of the drying cavity and then enters the combustion chamber 5 through the circulating air, hot air circulates in the drying cavity, and the hot air with a certain temperature returns to the combustion chamber 5, so that the energy is recycled, the energy loss is reduced, and the national environmental protection policy is met; the natural gas burner 4 is adopted for direct combustion heating and circulation through hot air, so that the energy is saved compared with a heating mode of a natural gas boiler; through last drying duct 6 and drying duct 7 down to the seedling tray 3 of educating of middle transport dry, be heated evenly from top to bottom, guarantee the effect of drying, improve the production product qualification rate.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel soilless seedling raising disc drying device comprises a drying box (1) and a steel wire conveying mesh belt (2), wherein a drying cavity is arranged inside the drying box (1), an inlet and an outlet communicated with the drying cavity are formed in the left end and the right end of the drying box (1), the steel wire conveying mesh belt (2) penetrates through the drying cavity, and a seedling raising disc (3) is placed on the steel wire conveying mesh belt (2); the drying device is characterized by further comprising a natural gas combustor (4), a combustion chamber (5) is arranged at the bottom of the drying chamber, the output end of the natural gas combustor (4) extends into the combustion chamber (5), an upper drying pipeline (6) and a lower drying pipeline (7) are arranged in the drying chamber, the upper drying pipeline (6) and the lower drying pipeline (7) are respectively positioned above and below the steel wire conveying mesh belt (2), hot air nozzles (8) are respectively communicated with the bottom end of the upper drying pipeline (6) and the top end of the lower drying pipeline (7), hot air circulating fans (9) are respectively arranged at the front end and the rear end of the drying box (1), the input ends of the two groups of hot air circulating fans (9) are respectively communicated with the combustion chamber (5), the output ends of the two groups of hot air circulating fans (9) are communicated with the input ends of the upper drying pipeline (6) and the lower drying pipeline (7), the air drying device is characterized in that a circulating air inlet (10) is formed in the combustion chamber (5), an air supplementing opening (11) is formed in the bottom of the front end of the drying box (1), a moisture discharging pipe group (12) is communicated with the top end of the drying box (1), and an exhaust fan (13) is arranged at the output end of the moisture discharging pipe group (12).

2. The novel soilless seedling raising tray drying device as claimed in claim 1, wherein the output end of the exhaust fan (13) is communicated with a waste heat recovery device, the waste heat recovery device comprises a heat exchanger (14), a bottom air inlet of the heat exchanger (14) is communicated with the output end of the exhaust fan (13), an air exhaust pipe (15) is arranged at a top air outlet of the heat exchanger (14), and a heat exchange coil (16) is arranged inside the heat exchanger (14).

3. The novel soilless seedling raising tray drying device is characterized in that a filter screen (17) is arranged at the position of the circulating air inlet (10).

4. A novel soilless seedling raising tray drying device according to claim 1, characterized in that a plurality of sets of supporting rollers (18) for conveying the steel wire conveying mesh belt (2) are arranged in the drying cavity.

5. The novel soilless seedling raising tray drying device as claimed in claim 1, wherein the radial direction of the output ends of the input ports of the upper drying pipeline (6) and the lower drying pipeline (7) is gradually reduced.

6. A novel soilless seedling raising tray drying device as claimed in claim 1, wherein the drying boxes (1) are provided with a plurality of groups, and the inlet and outlet of the drying boxes (1) are communicated end to end.