CN219023253U

CN219023253U - Yeast dehydration drying device

Info

Publication number: CN219023253U
Application number: CN202223321522.0U
Authority: CN
Inventors: 李坤; 张明收; 刘彪; 高祥; 孙春阳; 杨雪刚
Original assignee: Angel Yeast Jining Co ltd
Current assignee: Angel Yeast Jining Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-16
Anticipated expiration: 2032-12-12

Abstract

The utility model relates to the field of drying equipment, in particular to a yeast dehydration drying device. The utility model provides a yeast dehydration drying device, includes spray drying tower, cyclone and the draught fan that connects gradually through the pipeline, is connected with charge-in pipeline and hot-blast pipeline on spray drying tower's the atomizer, its characterized in that still includes preheating tank and beat the material pump, be equipped with pneumatic stirring device in the preheating tank, pneumatic stirring device is connected with the air outlet of draught fan, and the preheating tank is connected to charge-in pipeline through beating the material pump. The pneumatic stirring device comprises a rotary joint and a blade, and the blade is provided with a vent hole. The utility model provides an energy-saving yeast dehydration drying device.

Description

Yeast dehydration drying device

Technical Field

The utility model relates to the field of drying equipment, in particular to a yeast dehydration drying device.

Background

In order to maintain the activity of the yeast, the drying temperature of the yeast should not be too high, and the spray drying mode is very suitable for this property of the yeast. The spray drying is to disperse the material to be dried into fine particles like fog through mechanical action, and to contact with hot air to remove most of water instantaneously, so that the solid matters in the material are dried into powder, and the damage of the activity or structure of the yeast in the drying process can be avoided.

The discharge port of the spray drying tower is connected with a cyclone separator, the cyclone separator separates out materials and discharges waste gas, and the waste gas is finally discharged to the outside. However, the exhaust gas still has a certain temperature, and the exhaust gas causes waste of heat energy.

Disclosure of Invention

The utility model aims to solve the technical problem that waste heat energy of waste gas generated by a spray drying system in the prior art is wasted, and provides an energy-saving yeast dehydration drying device.

The technical scheme for solving the technical problems is as follows:

the utility model provides a yeast dehydration drying device, includes spray drying tower, cyclone and the draught fan that connects gradually through the pipeline, is connected with charge-in pipeline and hot-blast pipeline on spray drying tower's the atomizer, its characterized in that still includes preheating tank and beat the material pump, be equipped with pneumatic stirring device in the preheating tank, pneumatic stirring device is connected with the air outlet of draught fan, and the preheating tank is connected to charge-in pipeline through beating the material pump.

Preferably, the pneumatic stirring device comprises a fixed pipeline connected with the induced draft fan, a rotary joint connected at the lower end of the fixed pipeline and paddles fixedly connected on the rotary joint and communicated with the rotary joint, wherein the paddles are of a hollow structure, a plurality of paddles are arranged in a circumferential array mode at a preset inclination angle, and a plurality of ventilation holes are formed in the walls of the paddles facing the inclined lower side.

Preferably, a check valve is arranged in the fixed pipeline.

Preferably, the number of the paddles is two.

Preferably, the air filter, the blower and the heating device are sequentially connected, and the heating device is connected to the hot air pipeline.

Preferably, an insulating layer is arranged on the outer wall of the preheating tank.

Preferably, a temperature probe is inserted into the preheating tank.

The beneficial effects of the utility model are as follows:

according to the utility model, the pneumatic stirring device is arranged, waste gas generated by spray drying is introduced into the preheating tank to preheat yeast liquid in the preheating tank, so that the temperature of hot air used by spray drying can be reduced to achieve the same drying effect, and energy conservation and consumption reduction are realized; the waste gas is used for pushing the blade to rotate, so that the stirring of the yeast feed liquid is realized, and the feed liquid which is injected into the spray drying tower is kept uniform. The device omits the stirring device of the preheating tank while recycling waste heat of waste gas, has a simple and ingenious structure, reduces equipment cost of enterprises, and achieves the purposes of energy conservation and consumption reduction.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the pneumatic stirring device of the present utility model;

in the figure: 1. air filter, 2, blower, 3, heating device, 4, spray drying tower, 40, atomizer, 41, hot air duct, 42, feed duct, 5, cyclone, 6, induced draft fan, 7, preheating tank, 70, heat insulating layer, 8, pneumatic stirring device, 80, fixed duct, 81, rotary joint, 82, blade, 820, vent hole, 9, check valve, 10, temperature probe, 11, material pump.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the illustrated embodiments are provided for illustration only and are not intended to limit the scope of the present utility model.

As shown in fig. 1 and 2, a yeast dewatering and drying apparatus of this embodiment includes a spray drying tower 4, a cyclone 5 and a draught fan 6 connected in sequence by pipes, and a feeding pipe 42 and a hot air pipe 41 are connected to an atomizer 40 of the spray drying tower 4. The present embodiment further comprises an air filter 1, a blower 2 and a heating device 3 connected in sequence, said heating device 3 being connected to said hot air duct 41.

The device also comprises a preheating tank 7 and a material beating pump 11, wherein a pneumatic stirring device 8 is arranged in the preheating tank 7, the pneumatic stirring device 8 is connected with an air outlet of the induced draft fan 6, and the preheating tank 7 is connected to a feeding pipeline 42 through the material beating pump 11. It will be appreciated that the preheating tank 7 is provided with an exhaust duct which can be connected to the exhaust system of the plant and eventually discharged to the outside from an exhaust stack. Preferably, an insulating layer 70 is arranged on the outer wall of the preheating tank 7, and a temperature probe 10 can be inserted into the preheating tank 7 for detecting the temperature of the feed liquid in the preheating tank 7, and the temperature of hot air fed into the spray drying tower 4 can be correspondingly adjusted according to the temperature, so that the drying process is controlled more stably.

Specifically, the pneumatic stirring device 8 comprises a fixed pipeline 80 connected with the induced draft fan 6, a rotary joint 81 connected to the lower end of the fixed pipeline 80, and a paddle 82 which is communicated with the rotary joint 81 and fixedly connected to the rotary joint 81, wherein the paddle 82 is arranged on the lower side of the preheating tank 7. The blades 82 are hollow, the blades 82 are arranged in a circumferential array at a preset inclination angle, and a plurality of ventilation holes 820 are formed in the wall of the blades 82 facing obliquely downwards. The number of the paddles 82 in this embodiment is two. In order to prevent the feed liquid in the preheating tank 7 from flowing backward, a check valve 9 may be provided in the fixed pipe 80.

When the utility model is used, the yeast feed liquid in the preheating tank 7 is pumped into the atomizer 40 by the feed pump 11, hot air is simultaneously introduced into the atomizer 40 from the hot air pipeline 41, and the feed liquid is sprayed into the tower body of the spray drying tower 4 in a mist form to be dried. The dried material enters a cyclone separator 5 under the action of an induced draft fan 6. The yeast finished product flows out from the lower end of the cyclone separator 5, and the waste gas flows into the induced draft fan 6 from the upper end pipeline of the cyclone separator 5 and then is introduced into the pneumatic stirring device 8. The exhaust gas is sprayed downwards from the vent hole 820 in an inclined way to push the paddle 82 to rotate, and heat in the exhaust gas can preheat the yeast feed liquid and the paddle 82 rotates to uniformly drive the feed liquid into the spray drying tower 4.

Waste gas generated by spray drying is introduced into the preheating tank 7 to preheat yeast feed liquid in the preheating tank 7, so that the temperature of hot air used by the spray drying tower 4 can be reduced to achieve the same drying effect, and the energy conservation and consumption reduction are realized; the paddle 82 is pushed to rotate by utilizing the waste gas, so that the yeast liquid is stirred, the stirring device of the preheating tank 7 is omitted when waste gas waste heat is recycled, the structure is simple and ingenious, the equipment cost of enterprises is reduced, and the purposes of energy conservation and consumption reduction are achieved.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above description will be apparent to those of skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. The utility model provides a yeast dehydration drying device, includes spray drying tower (4), cyclone (5) and draught fan (6) that connect gradually through the pipeline, is connected with feed pipeline (42) and hot air line (41) on atomizer (40) of spray drying tower (4), its characterized in that still includes preheating tank (7) and beat material pump (11), be equipped with pneumatic agitating unit (8) in preheating tank (7), pneumatic agitating unit (8) are connected with the air outlet of draught fan (6), and preheating tank (7) are connected to feed pipeline (42) through beat material pump (11).

2. The yeast dewatering and drying device according to claim 1, wherein the pneumatic stirring device (8) comprises a fixed pipeline (80) connected with the induced draft fan (6), a rotary joint (81) connected at the lower end of the fixed pipeline (80) and paddles (82) communicated with the rotary joint (81) and fixedly connected to the rotary joint (81), the paddles (82) are of hollow structures, a plurality of paddles (82) are distributed in a circumferential array mode at a preset inclination angle, and a plurality of ventilation holes (820) are formed in the walls of the paddles (82) facing obliquely downwards.

3. A yeast dewatering and drying apparatus according to claim 2, characterized in that a check valve (9) is provided in the stationary pipe (80).

4. A yeast dewatering and drying apparatus according to claim 2 or 3, characterized in that the number of paddles (82) is two.

5. A yeast dewatering and drying apparatus according to claim 1, further comprising an air filter (1), a blower (2) and a heating device (3) connected in sequence, the heating device (3) being connected to the hot air duct (41).

6. The yeast dewatering and drying device according to claim 1, wherein an insulating layer (70) is arranged on the outer wall of the preheating tank (7).

7. A yeast dewatering and drying apparatus according to claim 1, characterized in that a temperature probe (10) is inserted into the preheating tank (7).