CN216366638U

CN216366638U - Energy-saving spray drying equipment

Info

Publication number: CN216366638U
Application number: CN202122571435.XU
Authority: CN
Inventors: 秦伟建; 张琪; 石国能; 冯志巍
Original assignee: Changzhou Tejet Lightning Protection Technology Co ltd
Current assignee: Changzhou Tejet Lightning Protection Technology Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-04-26
Anticipated expiration: 2031-10-25

Abstract

The application relates to an energy-conserving formula spray drying equipment belongs to spray dryer's technical field, and it includes the drying tower, one side intercommunication of drying tower has the heating cabinet, and the opposite side intercommunication has the air exhauster, be equipped with heating element in the heating cabinet, the heating cabinet intercommunication has the air-blower. The application has the effect of reducing energy consumption.

Description

Energy-saving spray drying equipment

Technical Field

The application relates to the field of spray dryers, in particular to energy-saving spray drying equipment.

Background

Spray drying is widely applied to liquid material drying at present, and the working principle is as follows: the material is sprayed into fog drops and dispersed in hot air by a spraying method, and the material and the hot air are contacted with each other in a cocurrent flow, a countercurrent flow or a mixed flow manner, so that the moisture is quickly evaporated, and the aim of drying is fulfilled. By adopting the drying method, unit operations such as concentration, filtration, crushing and the like can be omitted, the drying time is short, and the damage to the active ingredients of the dried materials is less.

In the related technology, the material is spray-dried in a drying tower, one side of which is connected with a heating box and the other side is communicated with an exhaust fan. By starting the exhaust fan, outside air is pumped to the heating box for heating, and the heated air is introduced into the drying tower. The problems in the above scheme are: when the exhaust fan performs air exhaust, because the air exhaust stroke is large, heated air cannot be introduced into the drying tower in time and only can be continuously remained in the heating box for heating, so that the heat of the air introduced into the drying tower is excessive, and the energy consumption is large.

SUMMERY OF THE UTILITY MODEL

In order to reduce energy consumption, the application provides an energy-saving spray drying equipment.

The application provides an energy-conserving formula spray drying equipment adopts following technical scheme:

the utility model provides an energy-conserving formula spray drying equipment, includes the drying tower, one side intercommunication of drying tower has the heating cabinet, and opposite side intercommunication has the air exhauster, be equipped with heating element in the heating cabinet, the heating cabinet intercommunication has the air-blower.

Through adopting above-mentioned technical scheme, when using this spray drying equipment, start air exhauster and air-blower, transfer the air and heat to the heating cabinet in, the air after the completion heating is transferred to the drying tower in, carries out the drying to the material. Through setting up the air-blower, improved the promptness that hot-blast let in the drying tower in the heating cabinet, reduced the condition emergence that the air heat is surplus in the drying tower to reduce the energy consumption. In addition, an air inlet link is added, so that the burden of the exhaust fan is reduced, and the phenomenon of damage caused by overload of the exhaust fan is reduced; the exhaust fan exhausts air to enable the environment in the drying tower to be in a negative pressure state, an air supply link is added, the pressure in the drying tower is balanced relatively, and the influence of the negative pressure environment on material drying is reduced.

Optionally, a filtering device is connected between the blower and the heating box.

Through adopting above-mentioned technical scheme, filter equipment can filter the air, improves the cleanliness factor that lets in the interior air of drying tower to improve the purity of the material after accomplishing spray drying.

Optionally, the filter equipment is including filtering water tank, filtering water tank passes through the air-supply line and is connected with the air-blower, the mouth of pipe position that air-blower one end was kept away from to the air-supply line is less than filtering water tank's liquid level, filtering water tank is connected with the heating cabinet through going out the tuber pipe, it is higher than filtering water tank's liquid level to go out the mouth of pipe position that heating cabinet one end was kept away from to the tuber pipe.

Through adopting above-mentioned technical scheme, the air-blower blows the filter tank to the air from the intraductal drum of air-intake, and filter tank filters the air, filters out the dirt particle in the air, and the air that accomplishes after the filtration lets in the heating cabinet through going out the tuber pipe again. The filtering device has simple structure, low cost and easy realization.

Optionally, be equipped with even wind box between the tuber pipe both ends, be equipped with first even aerofoil in the even wind box, evenly gather on the first even aerofoil has first even wind hole, the drill way direction in first even wind hole is the same with the length direction who goes out the tuber pipe.

Through adopting above-mentioned technical scheme, improve stability and the even degree in the air current gets into the heating cabinet to make the air current that lets in the heating cabinet by the even heating, reduce the energy loss because of the uneven energy that causes of air heating.

Optionally, the heating box is communicated with the drying tower through a hot air pipeline, and a heat insulation layer is sleeved on the outer side of the hot air pipeline.

Through adopting above-mentioned technical scheme, the heat transfer of hot-blast and external environment has been reduced to the heat preservation, has reduced the calorific loss who lets in hot-blast pipeline in to reduce the energy consumption.

Optionally, one end of the hot air pipeline far away from the heating box is provided with a second air homogenizing plate, second air homogenizing holes are uniformly and densely distributed on the second air homogenizing plate, and the direction of the hole opening of each second air homogenizing hole is the same as the length direction of the hot air pipeline.

Through adopting above-mentioned technical scheme, improve the stability and the even degree that hot-blast air current got into in the drying tower, improved drying efficiency, reduced the material waste and the energy waste that the drying is uneven to cause.

Optionally, even wind hole of first even wind hole and second all is the loudspeaker form just the big head end in even wind hole of first even wind hole and second is towards the air-blower, and little head end is towards the air exhauster.

Through adopting above-mentioned technical scheme, the even wind hole of first even wind hole of loudspeaker form and the even wind hole of second are convenient for the air current and carry out unidirectional flow, reduce the possibility of steam backward flow to further improve the drying efficiency of drying tower, reduce calorific loss.

Optionally, a dust removal device is connected between the drying tower and the exhaust fan.

By adopting the technical scheme, the material can generate large powder in the process of spray drying, and the dust removal device can reduce air pollution caused by the powder in the drying process.

Optionally, the dust removing device comprises a cyclone separator and a pulse bag dust remover, wherein the input end of the cyclone separator is communicated with the drying tower, and the output end of the cyclone separator is communicated with the input end of the pulse bag dust remover.

By adopting the technical scheme, the cyclone separator and the pulse bag dust collector sequentially remove dust from the waste hot gas discharged from the drying tower, so that the dust removal effect is improved.

Optionally, the output end of the pulse bag-type dust collector is connected with the filter water tank through a waste heat recovery pipeline, and the position of the pipe orifice of one end of the waste heat recovery pipeline, which is far away from the pulse bag-type dust collector, is lower than the liquid level of the filter water tank.

Through adopting above-mentioned technical scheme, carry out waste heat utilization to the exhaust waste heat gas of drying tower, have energy saving and consumption reduction's effect.

In summary, the present application includes at least one of the following beneficial technical effects:

through the setting of air-blower, improved the promptness that hot-blast in the heating cabinet lets in the drying tower, reduced the condition emergence that the air heat is surplus in the drying tower to reduce the energy consumption. In addition, an air inlet link is added, so that the burden of the exhaust fan is reduced, and the phenomenon of damage caused by overload of the exhaust fan is reduced; the exhaust fan exhausts air to enable the environment in the drying tower to be in a negative pressure state, an air supply link is added, the pressure in the drying tower is relatively balanced, and the influence of the negative pressure environment on material drying is reduced;

through the arrangement of the second air-homogenizing holes, the stability and uniformity of hot air flow entering the drying tower are improved, the drying efficiency is improved, and material waste and energy waste caused by uneven drying are reduced;

through the setting of waste heat recovery pipeline, carry out waste heat utilization to the exhaust waste heat gas of drying tower, have energy saving and consumption reduction's effect.

Drawings

Fig. 1 is a schematic overall structure diagram embodying an embodiment of the present application.

Fig. 2 is a schematic diagram of an internal structure embodying an embodiment of the present application.

Fig. 3 is a partially enlarged schematic view at a in fig. 2.

Fig. 4 is a partially enlarged schematic view at B in fig. 2.

Description of reference numerals: 1. a drying tower; 2. a heating box; 21. a heating assembly; 3. an exhaust fan; 4. a blower; 5. a filtration device; 51. a filtering water tank; 511. a water inlet pipe; 512. a drain pipe; 513. a blow-off pipe; 52. an air inlet pipe; 53. an air outlet pipe; 6. a wind homogenizing box; 61. a first air distribution plate; 611. a first air equalizing hole; 7. a hot air duct; 71. a heat-insulating layer; 72. a second air distribution plate; 721. a second air equalizing hole; 8. a dust removal device; 81. a cyclone separator; 82. a pulse bag dust collector; 83. a mounting frame; 9. and a waste heat recovery pipeline.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses energy-saving spray drying equipment. Referring to fig. 1 and 2, an energy-saving spray drying apparatus includes a drying tower 1, one side of the drying tower 1 is communicated with a heating box 2, the other side is communicated with an exhaust fan 3, the heating box 2 is communicated with an air blower 4, and a heating assembly 21 is arranged in the heating box 2, in this embodiment, the heating assembly 21 may be a plurality of heating pipes.

When the spray drying equipment is used, the exhaust fan 3 and the air blower 4 are started, air is transferred into the heating box 2 to be heated, and the heated air is transferred into the drying tower 1 to dry materials. Through setting up air-blower 4, improved the promptness that hot-blast in the heating cabinet 2 lets in drying tower 1, reduced the condition emergence that the air heat is surplus in drying tower 1 to reduce the energy consumption. In addition, an air supply link is added, so that the burden of the exhaust fan 3 is reduced, and the phenomenon that the exhaust fan 3 is damaged due to overload is reduced; the exhaust fan 3 exhausts air to enable the environment in the drying tower 1 to be in a negative pressure state, an air supply link is added, the pressure in the drying tower 1 is balanced relatively, and the influence of the negative pressure environment on material drying is reduced.

Referring to fig. 1 and 2, a filtering device 5 is connected between the blower 4 and the heating box 2, the filtering device 5 includes a filtering water tank 51, the filtering water tank 51 is connected with the blower 4 through an air inlet pipe 52, the top of the filtering water tank 51 is communicated with a water inlet pipe 511, the side wall of the filtering water tank 51 is communicated with a water outlet pipe 512, and the bottom of the filtering water tank 51 is communicated with a sewage discharge pipe 513. The water inlet pipe 511 is opened to fill the filtered water tank 51 with water from the water inlet pipe 511, the water discharge pipe 512 is opened to discharge the water in the filtered water tank 51, and the drain pipe 513 is opened to discharge the impurities settled in the filtered water tank 51. The position of the pipe orifice of the air inlet pipe 52, which is far away from one end of the air blower 4, is lower than the liquid level of the filter water tank 51, the filter water tank 51 is connected with the heating box 2 through the air outlet pipe 53, and the position of the pipe orifice of the air outlet pipe 53, which is far away from one end of the heating box 2, is higher than the liquid level of the filter water tank 51. So, air-blower 4 blows the air to filtering water tank 51 from the interior drum of air-supply line 52 in, filtering water tank 51 filters the air, filters out the dust particle in the air, and the air after accomplishing the filtration lets in heating cabinet 2 through going out tuber pipe 53 again in, improves the cleanliness factor that lets in the interior air of drying tower 1 to improve the purity of the material after accomplishing spray drying.

Referring to fig. 2 and 3, an air homogenizing box 6 is installed between two ends of the air outlet pipe 53, a first air homogenizing plate 61 is installed in the air homogenizing box 6, first air homogenizing holes 611 are uniformly and densely distributed on the first air homogenizing plate 61, the first air homogenizing holes 611 are trumpet-shaped, the large end of the first air homogenizing holes 611 faces the air blower 4, and the small end faces the air exhauster 3. So, can improve stability and the even degree in the air current gets into heating cabinet 2 to make the air current that lets in heating cabinet 2 by the even heating, reduce the energy loss because of the uneven energy loss that causes of air heating. Meanwhile, the trumpet-shaped first air uniform holes 611 facilitate the air flow to flow from the filtering water tank 51 to the heating box 2, and improve the air flow efficiency.

Referring to fig. 2, heating cabinet 2 passes through hot-blast main 7 and drying tower 1 intercommunication, and the cover is equipped with heat preservation 71 in the hot-blast main 7 outside, and in this embodiment, heat preservation 71 can be the rubber and plastic sponge, so, heat preservation 71 can reduce hot-blast and external environment's heat transfer, reduces to let in hot-blast calorific loss in hot-blast main 7 to reduce the energy consumption.

Referring to fig. 2 and 4, a second air homogenizing plate 72 is installed at one end of the hot air duct 7 far from the heating box 2, a side wall of the second air homogenizing plate 72 is attached to an inner wall of the hot air duct 7, second air homogenizing holes 721 are uniformly and densely distributed on the second air homogenizing plate 72, the second air homogenizing holes 721 are horn-shaped, a big end of the second air homogenizing holes 721 faces the blower 4, and a small end faces the exhaust fan 3. Thus, the trumpet-shaped second air distribution holes 721 facilitate the flow of hot air in the hot air heating box 2 to the drying tower 1, reduce the possibility of hot air backflow, further improve the drying efficiency of the drying tower 1 and reduce heat loss.

Referring to fig. 1, a dust removing device 8 is connected between the drying tower 1 and the exhaust fan 3. Dust collector 8 includes cyclone 81 and pulse bag dust collector 82, and cyclone 81 passes through mounting bracket 83 and drying tower 1 fixed connection, and cyclone 81's input and drying tower 1 intercommunication, output and pulse bag dust collector 82's input intercommunication. The material can produce large powder in the process of spray drying, and the cyclone separator 81 and the pulse bag dust collector 82 can remove dust from the waste hot gas discharged from the drying tower 1 in sequence, so that the air pollution caused by the powder in the drying process is reduced.

Referring to fig. 1 and 2, the output end of the pulse bag dust collector 82 is connected with the filtering water tank 51 through a waste heat recovery pipeline 9, and the position of a pipe orifice of one end of the waste heat recovery pipeline 9, which is far away from the pulse bag dust collector 82, is lower than the liquid level of the filtering water tank 51. Therefore, the waste heat gas discharged by the drying tower 1 can be subjected to waste heat utilization, and the effects of energy conservation and consumption reduction are achieved.

The implementation principle of the energy-saving spray drying equipment in the embodiment of the application is as follows: when the spray drying equipment is used, the exhaust fan 3 and the air blower 4 are started, air is transferred into the heating box 2 to be heated, and the heated air is transferred into the drying tower 1 to dry materials. Through setting up air-blower 4, improved the promptness that hot-blast in the heating cabinet 2 lets in drying tower 1, reduced the condition emergence that the air heat is surplus in drying tower 1 to reduce the energy consumption.

When the drying tower 1 is used for drying, the discharged waste hot gas is dedusted by the cyclone separator 81 and the pulse bag dust collector 82, then is introduced into the filter water tank 51 through the waste heat recovery pipeline 9, and is filtered by the filter water tank 51 and then is introduced into the heating tank 2 for heating, so that the waste heat utilization of the waste hot gas is realized, and the effects of energy conservation and consumption reduction are achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an energy-conserving formula spray drying equipment, includes drying tower (1), one side intercommunication of drying tower (1) has heating cabinet (2), and the opposite side intercommunication has air exhauster (3), be equipped with heating element (21), its characterized in that in heating cabinet (2): heating cabinet (2) intercommunication has air-blower (4), be connected with filter equipment (5) between air-blower (4) and heating cabinet (2), filter equipment (5) are including filtering water tank (51), filtering water tank (51) are connected with air-blower (4) through air-supply line (52), the mouth of pipe position that air-blower (4) one end was kept away from in air-supply line (52) is less than the liquid level of filtering water tank (51), filtering water tank (51) are connected with heating cabinet (2) through going out tuber pipe (53), it is higher than the liquid level of filtering water tank (51) to go out the mouth of pipe position that heating cabinet (2) one end was kept away from in tuber pipe (53).

2. An energy efficient spray drying apparatus according to claim 1, wherein: be equipped with even wind box (6) between air-out pipe (53) both ends, be equipped with first even aerofoil (61) in even wind box (6), evenly dense has first even wind hole (611) on first even aerofoil (61), the drill way direction in first even wind hole (611) is the same with the length direction who goes out air pipe (53).

3. An energy efficient spray drying apparatus according to claim 2, wherein: the heating box (2) is communicated with the drying tower (1) through a hot air pipeline (7), and a heat preservation layer (71) is sleeved on the outer side of the hot air pipeline (7).

4. An energy efficient spray drying apparatus according to claim 3, wherein: one end of the hot air pipeline (7) far away from the heating box (2) is provided with a second air homogenizing plate (72), second air homogenizing holes (721) are uniformly and densely distributed on the second air homogenizing plate (72), and the orifice direction of the second air homogenizing holes (721) is the same as the length direction of the hot air pipeline (7).

5. An energy efficient spray drying apparatus according to claim 4, wherein: first even wind hole (611) and second even wind hole (721) all are the loudspeaker form just the major part end of first even wind hole (611) and second even wind hole (721) is towards air-blower (4), and little head end is towards air exhauster (3).

6. An energy efficient spray drying apparatus according to claim 1, wherein: and a dust removal device (8) is connected between the drying tower (1) and the exhaust fan (3).

7. An energy efficient spray drying apparatus according to claim 6, wherein: the dust removal device (8) comprises a cyclone separator (81) and a pulse bag-type dust remover (82), the input end of the cyclone separator (81) is communicated with the drying tower (1), and the output end of the cyclone separator is communicated with the input end of the pulse bag-type dust remover (82).

8. An energy efficient spray drying apparatus according to claim 7, wherein: the output end of the pulse bag-type dust collector (82) is connected with the filter water tank (51) through a waste heat recovery pipeline (9), and the position of the pipe orifice of one end, far away from the pulse bag-type dust collector (82), of the waste heat recovery pipeline (9) is lower than the liquid level of the filter water tank (51).