CN2483677Y

CN2483677Y - Drying tower

Info

Publication number: CN2483677Y
Application number: CN 01239508
Authority: CN
Inventors: 徐瑞鹤
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-05-22
Filing date: 2001-05-22
Publication date: 2002-03-27
Anticipated expiration: 2011-05-22

Abstract

The utility model discloses a drying tower. The upper end is provided with a hot air inlet and a spray gun, the lower end is provided with a discharging port. The device is characterized in that a tower body is composed by an inner wall and an outer wall, and the inner wall and the outer wall are provided with gap there between. An air membrane duct is formed on the inner wall. The outer wall corresponding to each air membrane duct us provided with a heater and a blower which are connected with the air membrane duct. The outer wall is provided with induced air open averagely, the induced air open is connected with an induced draft fan through an induced tube. The outer wall is provided with a cold air inlet, and the inner and the outer wall between the cold air inlet and the induced air open is provided a vertical separator there between. Using the drying tower to dry liquid material has the advantages of high product quality, low workforce and high manufacture efficiency, which is suitable for the industries such as food, medicine, etc.

Description

Drying tower

The utility model relates to a kind of spray drying device.Specifically, be a kind of drying tower that is used for feed liquid is processed into powdered object.Be applicable to industries such as food, medicine.

In industries such as food, medicine,, often need liquid material is processed into powdery product for ease of transportation or storage.Its method is in drying tower liquid material to be atomized, its with add that hot-air is instantaneous and contact after, moisture is wherein evaporated rapidly, thereby obtains dry powdery product.Wherein, the tower wall of drying tower has inside and outside two-layer, is filled with insulation material between two-layer tower wall, to be used for insulation.In the production process, stick in the material on the tower wall owing to be subjected to burnt paste of long high-temperature baking meeting, product quality is not high.For addressing this problem, the method that adopts is regularly the tower body inwall to be carried out hand sweeping or scrub at present.The method that adopts hand sweeping or scrub is stuck with paste though also can prevent Jiao of material, and labour intensity is big.And cleaning or scrubbing needs to carry out under stopped status, and production efficiency is not high.

The purpose of this utility model is to provide a kind of drying tower.Use this drying tower, can improve the quality of products, reduce labour intensity, enhance productivity.

Above-mentioned purpose of the present utility model is realized by following technical solution:

Drying tower of the present utility model comprises tower body, and there is the hot blast import upper end of tower body, and this hot blast inlet ambient has spray gun.There is discharging opening the tower body lower end.Its design feature is that said tower body is made of inner and outer wall, and is gapped between this inside and outside wall.Inwall wherein is to be formed by plurality of sections cylinder overlap joint, it is big that the diameter of this plurality of sections cylinder becomes from top to bottom gradually, in every adjacent pair of cylinders, the one section sleeve in the bottom of last cylindrical section is in the top of following cylindrical section in one section, so that behind the upper end and the soldering and sealing of epimere cylinder outer surface of following cylindrical section, can between the overlay segment of this two cylindrical section, form the air film air channel.The air channel tube connector is arranged on the outer wall corresponding to each air film air channel, the inner of this air channel tube connector communicate with the air film air channel and and the tower wall between be tangential setting, its outer end is connected to heater and pressure fan successively.In the air channel tube connector wherein damper is housed also.

Corresponding to an air-vent is all arranged on the outer wall at every cylindrical section place, this air-vent is connected with total induced duct by induced duct.One end of total induced duct is useful on the valve of regulating air quantity, and the other end and air-introduced machine join.Also have the cold wind import on the outer wall of tower body, between the inside and outside wall between this cold wind import and the air-vent longitudinal baffle is arranged.

Circumferential air film exit, lower edge, air film air channel is evenly equipped with some wind deflectors, between the vertical line of this wind deflector and tower wall angle is arranged.

Adopt such scheme, have the following advantages:

Because the tower body inwall of drying tower of the present utility model is to be formed by plurality of sections cylinder overlap joint, and is formed with the air film air channel between the overlay segment of per two cylindrical sections.During work, send into air in the air film air channel, can flow along the inner wall surface of tower body and form one deck air film by pressure fan, heater and air channel tube connector.This layer air film can play barrier effect to the material that sprays to inwall, can constantly wash away the tower wall surface, material dry powder is blowed to the discharging direction, makes material be difficult to be bonded on the tower body inwall.Even there is a small amount of material to be bonded on the tower body inwall, because the protective effect of air film, can zoom yet.

Constitute by inside and outside wall owing to tower body of the present utility model again, and gapped between inside and outside wall, inwall wherein is to be formed by plurality of sections cylinder overlap joint.Corresponding to an air port is all arranged on the outer wall at every cylindrical section place, this air port is connected with total induced duct by induced duct.By means of induced duct and total induced duct, can constantly take the hot-air between the inside and outside wall of tower body away.Owing on the tower body outer wall cold wind import is arranged, when taking hot-air away, replenished cold air again, the tower body inner wall temperature is controlled at below the aleuron point consistently, can prevent to stick to burnt paste of material on the tower wall.

In a word, need not carry out hand sweeping or scrub, just can avoid that material is burnt to be stuck with paste the tower body inwall.Not only improved product quality, also reduced labour intensity, improved production efficiency.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is a drying tower cross-sectional schematic of the present utility model;

Fig. 2 is that the K of Fig. 1 is to partial schematic sectional view;

Fig. 3 is the I point enlarged drawing of Fig. 1.

As shown in Figure 1, drying tower of the present utility model comprises a tower body, and there is conical section the upper end of this tower body.Hot blast import 8 is arranged at the top of conical section, and it circumferentially is processed with a plurality of spouts the Qi Bi upper edge, and spray gun 7 all is installed in each spout.The lower end of tower body is welded with the back taper section, and the cone-apex angle place of this back taper section is processed with discharging opening 1.

See Fig. 3, said tower body is made of inwall 2 and outer wall 3, leaves the gap between this inside and outside wall.Inwall 2 wherein is to be formed by multistage cylinder overlap joint, it is big that the diameter of each cylinder becomes from top to bottom gradually, promptly Shang Mian a end can overlap in below one section, following cylindrical section upper end is by a ring segment 16 and a top cylindrical section outer surface soldering and sealing mutually, make to keep certain clearance between the overlay segment of per two cylindrical sections, so that form air film air channel 17.

See Fig. 1, Fig. 2, all be welded with an air channel tube connector 13 on the outer wall 3 corresponding to each 17 place, air film air channel.Be tangential setting between this air channel tube connector and tower wall, its inner communicates with air film air channel 17, and its outer end is connected to heater 6 and pressure fan 5 from inside to outside successively.Also be provided with damper 4 in the air channel tube connector 13 wherein, this damper is an adjustable plate.All have an air-vent on the outer wall 3 corresponding to every cylindrical section place, each air-vent place all is welded with an induced duct 11.It vertically has a plurality of holes one side pipe wall upper edge of total induced duct 10, the quantity in this hole equates with the quantity of induced duct 11, and the outer end of each induced duct 11 is welded on the place, vertical hole of total induced duct 10 correspondingly, so that inside and

outside wall

2 and 3 communicate with total induced duct 10.The valve 12 that is used to regulate air quantity is equipped with in the lower end of total induced duct 10, and its other end is connected to an air-introduced machine 9.Have cold wind import 14 on the outer wall 3 of tower body, be between the inside and

outside wall

2 and 3 between this cold wind import and air-vent and be welded with longitudinal baffle 15, make cold wind enter, after rounding along inside and outside wall 2 and 3 s' gap, be drawn out of from air-vent from cold wind import 14.

In addition, export 18 places at the circumferential air film in 17 lower edges, air film air channel and be welded with a plurality of wind deflectors 19 equably, the angle of 45 degree of having an appointment between the vertical line of this wind deflector and tower wall.

For dust protection enters, in the cold wind import 14 of tower body, filter screen is installed also.

During work, the liquid material sprays into tower body and atomizing by spray gun 7, and the moisture that enters in the liquid material after hot blast import 8 interior hot blasts in tower body top can make atomizing evaporates rapidly, powders.Simultaneously, constantly wash away inwall 2 by the air-flow of air film air channel 17 formed air films, and material is blowed to discharging opening 1, stoped the adhesion of material effectively.Meanwhile, under the effect of the air-introduced machine 9 of total induced duct 10 upper and lower ends and valve 12, cold wind enters from the cold wind import 14 on the tower body outer wall 3, after rounding along inside and outside wall 2 and 3 s' gap, is extracted out by air-introduced machine 9, to carry out heat exchange.Because heat conducting effect, the heat on the tower wall is pulled away, and the tower wall temperature is reduced, thereby it is remained under the stationary temperature value.Even there is material to be bonded at Ta Bishang, can burntly not stick with paste yet.

Claims

1. drying tower comprises tower body, and there is hot blast import (8) upper end of tower body, and spray gun (7) is arranged around this hot blast import; There is discharging opening (1) the tower body lower end, it is characterized in that said tower body is made of inwall (2) and outer wall (3), and is gapped between this inside and outside wall; Inwall wherein (2) is to be formed by plurality of sections cylinder overlap joint, it is big that the diameter of this plurality of sections cylinder becomes from top to bottom gradually, in every adjacent pair of cylinders, the one section sleeve in the bottom of last cylindrical section is in the top of following cylindrical section in one section, so that behind the upper end and the soldering and sealing of epimere cylinder outer surface of following cylindrical section, can between the overlay segment of this two cylindrical section, form air film air channel (17); On the outer wall (3) corresponding to each air film air channel (17) air channel tube connector (13) is arranged, the inner of this air channel tube connector communicate with air film air channel (17) and and the tower wall between be tangential setting, its outer end is connected to heater (6) and pressure fan (5) successively; In the air channel tube connector (13) wherein damper (4) is housed also;

On the outer wall (3) corresponding to every cylindrical section place an air-vent is arranged all, this air-vent is connected with total induced duct (10) by induced duct (11); One end of total induced duct (10) is useful on the valve (12) of regulating air quantity, and the other end is connected to air-introduced machine (9); The outer wall of tower body (3) is gone up also has cold wind import (14), and the inside and outside wall between this cold wind import and the air-vent has longitudinal baffle (15) between (2 and 3).

2. drying tower according to claim 1 is characterized in that the circumferential air film air outlet (18) in lower edge, air film air channel (17) locates to be evenly equipped with some wind deflectors (19), between the vertical line of this wind deflector and tower wall angle is arranged.

3. drying tower according to claim 1 and 2 is characterized in that in the cold wind import (15) filter screen being arranged.