High-pressure atomization powder spraying granulation drying tower

Abstract

The utility model relates to a high-pressure atomization powder spraying granulation drying tower, which aims to solve the technical problem that the current high-pressure atomization powder spraying granulation drying tower is not energy-saving and environment-friendly enough, and comprises a base, a drying tower main body is arranged on the base, and an air distributor and a centrifugal spray head are arranged at the top of the drying tower main body. The top of the base is provided with a feeding structure connected with the centrifugal spray head, an electric heating air blowing structure connected with the air distributor and a dust remover connected with the drying tower body, the bottom of the drying tower body is provided with a discharging structure, and a heat exchange pipe body is arranged at an exhaust port of the dust remover. An air inlet cavity and an air outlet cavity are formed in the heat exchange pipe body, the bottom of the air inlet cavity is open, the top of the air outlet cavity is open, and the top of the air inlet cavity is connected with an electric heating blast structure through a guide pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of drying towers, in particular to a high-pressure atomization powder spraying and granulation drying tower. Background Art

[0002] High-pressure atomization powder spray granulation drying tower is a device that can complete drying and granulation at the same time. According to the process requirements, the pressure, flow rate and size of the spray hole of the liquid pump can be adjusted to obtain the required spherical particles of a certain size ratio. High-pressure atomization powder spray granulation drying is a kind of continuous atmospheric pressure dryer. Special equipment is used to spray the liquid into mist so that it can be dried by contact with hot air. It is used to dry some heat-sensitive liquids, suspensions and viscous liquids, and is also used to dry fuels, intermediates, soap powder and inorganic salts.

[0003] After the existing high-pressure atomization powder spray granulation drying tower dries and granulates the high-pressure atomized materials, the exhaust gas will be directly discharged through the dust collector. However, these exhaust gases carry a large amount of heat, which will be discharged together, causing energy waste and not energy-saving and environmentally friendly. In view of this, we propose a high-pressure atomization powder spray granulation drying tower. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide a high-pressure atomization powder spraying granulation drying tower to solve the technical problem that the current high-pressure atomization powder spraying granulation drying tower is not energy-saving and environmentally friendly.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a high-pressure atomization powder spraying granulation drying tower, including a base, a drying tower body is arranged on the base, and an air distributor and a centrifugal nozzle are arranged on the top of the drying tower body, a feeding structure connected to the centrifugal nozzle is arranged on the top of the base, an electric heating blast structure connected to the air distributor is arranged on the top of the base, a dust collector connected to the drying tower body is arranged on the top of the base, and a discharge structure is arranged at the bottom of the drying tower body;

[0006] The exhaust port of the dust collector is arranged with a heat exchange tube body, and an air inlet cavity and an air outlet cavity are arranged inside the heat exchange tube body. The bottom of the air inlet cavity is open, and the top of the air outlet cavity is open. The top of the air inlet cavity is connected to the electric heating blast structure through a conduit, and a connecting pipe is arranged at the bottom of the air outlet cavity, and the connecting pipe is connected to the exhaust port of the dust collector;

[0007] A first spiral blade is arranged inside the air inlet cavity, pillars are centrally and symmetrically arranged inside the air outlet cavity, and a second spiral blade is arranged between the inner wall of the air outlet cavity and the outer wall of the pillar.

[0008] Preferably, two groups of symmetrical fixing seats are arranged on the outside of the heat exchange tube body, and the fixing seats are fixedly connected to the dust collector.

[0009] Preferably, a filter screen is arranged at the bottom of the air inlet chamber.

[0010] Preferably, mounting rods are arranged equidistantly around the top of the heat exchange tube body, and top seats are arranged on the tops of the mounting rods.

[0011] Preferably, the feeding structure comprises a material barrel and a material pump, the material barrel and the material pump are arranged on a base, the output end of the bottom of the material barrel is connected to the input end of the material pump through a conduit, and the output end of the material pump is connected to the centrifugal nozzle through a conduit.

[0012] Preferably, the electric heating blowing structure includes an electric heating box, a blower and a filter. The electric heating box is arranged on a base, the blower is arranged on the electric heating box, the filter is arranged at the input end of the blower, the filter input end is connected to the output end of the air inlet chamber through a conduit, the output end of the blower is connected to the input end of the electric heating box through a conduit, and the output end of the electric heating box is connected to the air distributor through a conduit.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a heat exchange pipe body, and the exhaust gas discharged after the dust collector removes the dust enters the air outlet cavity of the heat exchange pipe body and then is discharged. When the electric heating air blowing structure is working, the external air absorbed by it will pass through the air inlet cavity of the heat exchange pipe body. In this process, the exhaust gas discharged through the air outlet cavity and the external air passing through the air inlet cavity will exchange heat, thereby preheating the external air. The preheated air enters the electric heating air blowing structure for reheating and transportation. Therefore, the heat in the exhaust gas can be effectively utilized to avoid heat waste. Therefore, the utility model has the advantages of energy saving and environmental protection.

[0015] 2. In the utility model, a spiral cavity is formed in the air outlet cavity by the cooperation of the pillar and the second spiral blade, and a spiral cavity is formed in the air inlet cavity by the first spiral blade. Therefore, the stroke of the exhaust gas can be increased when it is discharged through the spiral cavity in the air outlet cavity, and the stroke of the external air passing through the spiral cavity in the air inlet cavity can also be increased. Therefore, the exhaust gas and the external air passing through the air inlet cavity can have a more sufficient heat exchange, and the preheating effect of the external air passing through the air inlet cavity is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a first overall structural schematic diagram of the utility model;

[0017] Figure 2 It is a second overall schematic diagram of the utility model;

[0018] Figure 3This is a schematic diagram of the heat exchange tube structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the heat exchange tube body of the utility model;

[0020] Figure 5 For the utility model Figure 4 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1. base; 2. drying tower body; 201. air distributor; 202. centrifugal nozzle; 203. discharge structure; 3. feeding structure; 301. material barrel; 302. material pump; 4. electric heating blast structure; 401. electric heating box; 402. blower; 403. filter; 5. dust collector; 6. heat exchange tube body; 601. fixed seat; 7. filter screen; 8. air inlet chamber; 801. first spiral blade; 9. air outlet chamber; 901. pillar; 902. second spiral blade; 903. connecting pipe; 10. top seat; 1001. mounting rod. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] In the embodiment: high pressure atomization powder spraying granulation drying tower, see Figures 1 to 5 , comprising a base 1, a drying tower body 2 is arranged on the base 1, an air distributor 201 and a centrifugal nozzle 202 are arranged on the top of the drying tower body 2, a feeding structure 3 connected to the centrifugal nozzle 202 is arranged on the top of the base 1, an electric heating blast structure 4 connected to the air distributor 201 is arranged on the top of the base 1, a dust collector 5 connected to the drying tower body 2 is arranged on the top of the base 1, and a discharge structure 203 is arranged at the bottom of the drying tower body 2. When powdering and granulating liquids, suspensions, viscous liquids and other materials, the materials are first transported to the centrifugal nozzle 202 through the feeding structure 3, and the centrifugal nozzle 202 removes the materials from the top of the drying tower body 2. The atomized liquid is in contact with the hot air and is dried by the hot air, thereby forming powder particles, which fall into the bottom of the drying tower body 2. The tail gas after drying the atomized liquid enters the dust collector 5, and the dust collector 5 removes the dust and discharges the tail gas. Then, the personnel can discharge the powder particles stored in the drying tower body 2 through the discharge structure 203, thereby completing the high-pressure atomization powder spraying and granulation operation of the material. It should be noted here that the above structures are mature technical means in this field.

[0024] Specifically, the feeding structure 3 includes a material barrel 301 and a material pump 302, and the material barrel 301 and the material pump 302 are arranged on the base 1. The bottom output end of the material barrel 301 is connected to the input end of the material pump 302 through a conduit, and the output end of the material pump 302 is connected to the centrifugal nozzle 202 through a conduit. The material pump 302 extracts the material inside the material barrel 301 and transports it to the centrifugal nozzle 202.

[0025] Furthermore, the electric heating blowing structure 4 includes an electric heating box 401, a blower 402 and a filter 403. The electric heating box 401 is arranged on the base 1, the blower 402 is arranged on the electric heating box 401, and the filter 403 is arranged at the input end of the blower 402. The input end of the filter 403 is connected to the output end of the air inlet chamber 8 through a conduit, the output end of the blower 402 is connected to the input end of the electric heating box 401 through a conduit, and the output end of the electric heating box 401 is connected to the air distributor 201 through a conduit. When the blower 402 works, external air is sucked in, and the filter 403 filters the external air. The filtered air enters the electric heating box 401 to be heated to form high-temperature air, and the high-temperature air enters the air distributor 201.

[0026] In a specific embodiment, a heat exchange tube body 6 is arranged at the exhaust port of the dust collector 5, and an air inlet chamber 8 and an air outlet chamber 9 are arranged inside the heat exchange tube body 6. The bottom of the air inlet chamber 8 is open, and the top of the air outlet chamber 9 is open. The top of the air inlet chamber 8 is connected to the electric heating blast structure 4 through a conduit. A connecting pipe 903 is arranged at the bottom of the air outlet chamber 9, and the connecting pipe 903 is connected to the exhaust port of the dust collector 5. The exhaust gas discharged after dust removal by the dust collector 5 enters the air outlet chamber 9 of the heat exchange tube body 6, and then is discharged from its top. When the electric heating blast structure 4 is working, the external air it absorbs will pass through the air inlet chamber 8 of the heat exchange tube body 6. In this process, the exhaust gas discharged through the air outlet chamber 9 and the external air passing through the air inlet chamber 8 will exchange heat, thereby preheating the external air. The preheated air enters the electric heating blast structure 4 for reheating and transportation, so that the heat in the exhaust gas can be effectively utilized to avoid heat waste. Therefore, the utility model has the advantages of energy saving and environmental protection.

[0027] Specifically, two groups of symmetrical fixing seats 601 are arranged on the outside of the heat exchange tube body 6 , and the fixing seats 601 are fixedly connected to the dust collector 5 . The fixing seats 601 are used to fix the heat exchange tube body 6 to the dust collector 5 .

[0028] Furthermore, a filter screen 7 is arranged at the bottom of the air inlet chamber 8, and the filter screen 7 is used to pre-filter the inhaled external air.

[0029] Furthermore, mounting rods 1001 are evenly spaced around the top of the heat exchange tube body 6 , and a top seat 10 is arranged on the top of the mounting rods 1001 . The mounting rods 1001 cooperate with the top seat 10 to shield and protect the top opening of the air outlet cavity 9 .

[0030] In the utility model, a first spiral blade 801 is arranged inside the air inlet chamber 8, a pillar 901 is symmetrically arranged inside the air outlet chamber 9, and a second spiral blade 902 is arranged between the inner wall of the air outlet chamber 9 and the outer wall of the pillar 901. The air outlet chamber 9 is formed with the support 901 and the second spiral blade 902, and the air inlet chamber 8 is formed with the first spiral blade 801. Therefore, the stroke of the exhaust gas can be increased when it is discharged through the spiral cavity in the air outlet chamber 9, and the stroke of the external air can also be increased when it passes through the spiral cavity in the air inlet chamber 8. Therefore, the exhaust gas and the external air passing through the air inlet chamber 8 can have a more sufficient heat exchange, and the preheating effect of the external air passing through the air inlet chamber 8 is better. The utility model solves the technical problem that the current high-pressure atomizing powder spraying granulation drying tower is not energy-saving and environmentally friendly through the heat exchange tube body 6.

[0031] Working principle: When powdering and granulating materials such as liquids, suspensions and viscous liquids, first, the material is transported to the centrifugal nozzle 202 through the feeding structure 3, and the centrifugal nozzle 202 sprays the material from the top of the drying tower body 2 by centrifugal atomization. At this time, the electric heating blast structure 4 is controlled to transport the heated air to the air distributor 201, and the air distributor 201 sprays the hot air from the top of the drying tower body 2 by centrifugal spiral. At this time, the hot air is fully in contact with the atomized liquid, and the atomized liquid is dried by contact with the hot air, thereby forming powder particles, which fall into the bottom of the drying tower body 2. The tail gas after the atomized liquid is dried enters the dust collector 5, and the dust collector 5 removes the dust and discharges the tail gas. Then, the personnel can discharge the powder particles stored in the drying tower body 2 through the discharge structure 203, thereby completing the high-pressure atomization powdering and granulation operation of the material;

[0032] Secondly, the exhaust gas discharged after dust removal by the dust collector 5 enters the air outlet cavity 9 of the heat exchange tube body 6, and then is discharged from the top thereof. When the electric heating air blowing structure 4 is working, the external air absorbed by it will pass through the air inlet cavity 8 of the heat exchange tube body 6. In this process, the exhaust gas discharged through the air outlet cavity 9 and the external air passing through the air inlet cavity 8 will exchange heat, thereby preheating the external air. The preheated air enters the electric heating air blowing structure 4 for reheating and transportation, thereby effectively utilizing the heat in the exhaust gas and avoiding heat waste.

[0033] Finally, a spiral cavity is formed in the air outlet cavity 9 through the cooperation of the support 901 and the second spiral blade 902, and a spiral cavity is formed in the air inlet cavity 8 through the first spiral blade 801. Therefore, the travel of the exhaust gas can be increased when it is discharged through the spiral cavity in the air outlet cavity 9, and the travel of the external air through the spiral cavity in the air inlet cavity 8 can also be increased. Therefore, the exhaust gas and the external air passing through the air inlet cavity 8 can have a more sufficient heat exchange, and the preheating effect of the external air passing through the air inlet cavity 8 is better.

[0034] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. High-pressure atomization powder spraying granulation drying tower, characterized in that: The invention comprises a base (1), a drying tower body (2) is arranged on the base (1), an air distributor (201) and a centrifugal nozzle (202) are arranged on the top of the drying tower body (2), a feeding structure (3) connected to the centrifugal nozzle (202) is arranged on the top of the base (1), an electric heating blast structure (4) connected to the air distributor (201) is arranged on the top of the base (1), a dust collector (5) connected to the drying tower body (2) is arranged on the top of the base (1), and a discharge structure (203) is arranged on the bottom of the drying tower body (2); The exhaust port of the dust collector (5) is provided with a heat exchange tube body (6), an air inlet chamber (8) and an air outlet chamber (9) are arranged inside the heat exchange tube body (6), the bottom of the air inlet chamber (8) is open, the top of the air outlet chamber (9) is open, the top of the air inlet chamber (8) is connected to the electric heating air blowing structure (4) through a conduit, the bottom of the air outlet chamber (9) is provided with a connecting pipe (903), and the connecting pipe (903) is connected to the exhaust port of the dust collector (5); A first spiral blade (801) is arranged inside the air inlet cavity (8), a support column (901) is centrally symmetrically arranged inside the air outlet cavity (9), and a second spiral blade (902) is arranged between the inner wall of the air outlet cavity (9) and the outer wall of the support column (901).

2. The high pressure atomization powder spraying granulation drying tower according to claim 1, characterized in that: Two groups of symmetrical fixing seats (601) are arranged on the outside of the heat exchange tube body (6), and the fixing seats (601) are fixedly connected to the dust collector (5).

3. The high pressure atomization powder spraying granulation drying tower according to claim 1, characterized in that: A filter screen plate (7) is arranged at the bottom of the air inlet chamber (8).

4. The high pressure atomization powder spraying granulation drying tower according to claim 1, characterized in that: Mounting rods (1001) are arranged at equal intervals around the top of the heat exchange tube body (6), and a top seat (10) is arranged on the top of the mounting rods (1001).

5. The high pressure atomization powder spraying granulation drying tower according to claim 1, characterized in that: The feeding structure (3) comprises a material barrel (301) and a material pump (302), wherein the material barrel (301) and the material pump (302) are arranged on a base (1), wherein the bottom output end of the material barrel (301) is connected to the input end of the material pump (302) via a conduit, and the output end of the material pump (302) is connected to the centrifugal nozzle (202) via a conduit.

6. The high pressure atomization powder spraying granulation drying tower according to claim 1, characterized in that: The electric heating air blowing structure (4) comprises an electric heating box (401), a blower (402) and a filter (403); the electric heating box (401) is arranged on a base (1); the blower (402) is arranged on the electric heating box (401); the filter (403) is arranged at the input end of the blower (402); the input end of the filter (403) is connected to the output end of the air inlet chamber (8) via a conduit; the output end of the blower (402) is connected to the input end of the electric heating box (401) via a conduit; and the output end of the electric heating box (401) is connected to the air distributor (201) via a conduit.

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