CN212133223U

CN212133223U - Biomass fuel drying device

Info

Publication number: CN212133223U
Application number: CN202020384231.8U
Authority: CN
Inventors: 王子龙
Original assignee: Hunan Zhongding Biomass Fuel Co ltd
Current assignee: Hunan Zhongding Biomass Fuel Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-12-11
Anticipated expiration: 2030-03-24

Abstract

The utility model provides a biomass fuel drying device, which comprises a frame and a cylinder body arranged on the frame; the wall of the barrel body adopts a double-layer structure, a heating cavity is arranged between the inner layer and the outer layer of the barrel wall, and a central heating pipe communicated with the heating cavity of the barrel wall is arranged at the axial center of one end of the barrel body; a driving motor is installed at one end of the base, the output end of the driving motor is connected with a rotating shaft, the rotating shaft is coaxially and rotatably connected with the barrel, and one end of the rotating shaft is of a hollow structure and extends into the barrel to be inserted into the central heating pipe; an air inlet and an air outlet which are communicated with the cylinder wall heating cavity are respectively arranged at two ends of the cylinder body, and a heat insulation layer is further arranged on the outer surface of the cylinder body; the central heating pipe structure is arranged in the cylinder body, so that the defect of long material drying time in the prior art is overcome, the heating time can be greatly shortened, the energy consumption is saved, the operation cost is reduced, and meanwhile, the drying effect is good and the production efficiency is high; it is widely suitable for matching use in material drying operation.

Description

Biomass fuel drying device

Technical Field

The utility model relates to a stoving firing equipment especially relates to a biomass fuel drying device.

Background

The biomass fuel is a biological energy source which is processed by mainly using sorghum straws, corn straws, cotton straws, wheat or rice straw straws, branches, reeds, wood and the like as raw materials, is an ideal fuel for replacing coal or oil, can save energy and reduce emission, and has good economic benefit and social benefit.

The biomass fuel is generally prepared into various shapes including block, strip or granular clean fuel which can be directly combusted through the working procedures of crushing, screening, mixing, extruding, drying and the like; however, the biomass fuel contains more moisture after being processed, cannot be directly combusted, and can be used after being dried; the existing drying machinery generally adopts a rotary structure, namely a circular cylinder body which is horizontally and obliquely arranged runs by adopting gear transmission, a plurality of groups of supporting wheels are arranged at the bottom of the cylinder body for supporting, when materials enter from the high end of the cylinder body, a heating device is arranged on the cylinder wall for heating the materials in the cylinder body, and the materials are dried along with the rotation of the circular cylinder body and run to the lower end under the action of gravity to be discharged; although it has advantages such as drying effect is good, this kind of structural design is complicated, and spare part precision requirements such as gear are high, and the preparation period is long, and the central point in the barrel simultaneously can not in time be heated, therefore the required drying time of material is longer to influence production efficiency, cause the running cost height.

Disclosure of Invention

In view of the above situation, an object of the utility model is to provide a biomass fuel drying device, thereby it adopts and establishes the long defect of central heating tube structure in the barrel and overcome prior art material drying time, can shorten heat time by a wide margin, and the energy saving reduces the running cost, and it is effectual to dry simultaneously, and production efficiency is high, overall structure scientific and reasonable, simple compactness, installation and convenient to use, market prospect is wide, convenient to popularize and use.

In order to achieve the aim, the biomass fuel drying device comprises a machine base and a cylinder body arranged on the machine base; the cylinder wall of the cylinder body adopts a double-layer structure, a heating cavity is arranged between the inner layer and the outer layer of the cylinder wall, a central heating pipe with an inner cavity is arranged at the axial center of one end of the cylinder body, and the inner cavity of the central heating pipe is communicated with the cylinder wall heating cavity; a driving motor is installed at one end of the base, the output end of the driving motor is connected with a rotating shaft, the rotating shaft is coaxially and rotatably connected with the barrel, and one end of the rotating shaft is of a hollow structure and extends into the barrel to be inserted into the central heating pipe; and the two ends of the barrel body are respectively provided with an air inlet and an air outlet which are communicated with the barrel wall heating cavity, and the outer surface of the barrel body is also provided with a heat insulation layer.

In order to realize the optimization of the structure and the effect, the further measures are as follows: one end of the rotating shaft is connected with the output end of the driving motor, the other end of the rotating shaft extends into the cylinder, and the outer circular surface of the rotating shaft is provided with a helical blade.

The top of one end of the cylinder body close to the driving motor is provided with a feed hopper, and the bottom of the other end of the cylinder body is provided with a discharge hole.

The cylinder body is axially and horizontally arranged.

The barrel is axially and obliquely arranged.

The inclined included angle between the axial central line of the cylinder and the horizontal plane is 5-8 degrees.

The utility model discloses compare the produced beneficial effect of prior art:

the utility model (I) adopts the heating cavity arranged in the cylinder wall and the central heating pipe arranged in the cylinder body, so as to realize the simultaneous heating and drying of the materials by the cylinder wall and the cylinder body center, compared with the prior art which adopts the single cylinder wall heating mode, the heating time can be greatly shortened, the production efficiency can be effectively improved, the utilization rate of heat energy can be improved, and meanwhile, the cylinder body does not need to rotate, compared with the prior art, the gear rotating structure is simpler and more reliable, and the manufacturing cost is low;

the utility model adopts the heat preservation layer arranged on the outer surface of the cylinder body, which can effectively prevent the cylinder body from transferring heat outwards, thereby saving energy loss and greatly reducing the drying operation cost;

(III) the utility model adopts the structure that the heating cavity in the cylinder wall is communicated with the central heating pipe in the cylinder body, so that the cylinder wall and the central heating pipe can share one set of high-temperature gas conveying system, the whole structure is simple, the installation and the use are convenient, meanwhile, the structure that the central heating pipe in the cylinder body is inserted into the hollow rotating shaft can not interfere the conveying of the high-temperature gas in the central heating pipe when the rotating shaft runs, the installation is simple, the running is reliable, the high-temperature gas can be prevented from leaking, and the running and the maintenance cost are low;

(IV) the utility model discloses an thereby establish central heating tube structure in the barrel and overcome the long defect of prior art material drying time, can shorten heat time by a wide margin, the energy saving loss reduces the running cost, and it is effectual to dry simultaneously, and production efficiency is high, overall structure scientific and reasonable, simple compactness, installation and convenient to use have apparent economic benefits and social.

The utility model discloses extensively be applicable to the supporting use of material stoving operation.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1-machine base, 2-cylinder, 21-air inlet, 22-central heating pipe, 23-insulating layer, 24-air outlet, 25-discharge outlet, 3-driving motor, 4-feed hopper and 5-rotating shaft.

Detailed Description

Referring to fig. 1, the present invention is implemented as follows: a biomass fuel drying device comprises a machine base 1 and a cylinder body 2 arranged on the machine base 1; the cylinder wall of the cylinder body 2 adopts a double-layer structure, a heating cavity is arranged between the inner layer and the outer layer of the cylinder wall, a central heating pipe 22 with an inner cavity is arranged at the axial center of one end of the cylinder body 2, and the inner cavity of the central heating pipe 22 is communicated with the cylinder wall heating cavity; a driving motor 3 is installed at one end of the base 1, a rotating shaft 5 is connected to the output end of the driving motor 3, the rotating shaft 5 is coaxially and rotatably connected with the barrel 2, and one end of the rotating shaft 5 is of a hollow structure and extends into the barrel 2 to be inserted into the central heating pipe 22; an air inlet 21 and an air outlet 24 which are communicated with the cylinder wall heating cavity are respectively arranged at two ends of the cylinder body 2, and a heat insulation layer 23 is further arranged on the outer surface of the cylinder body 2; the heat preservation 23 generally adopts the cotton parcel of aluminium silicate to paste and forms in the surface of barrel 2, sets up heat preservation 23 and can keep apart barrel 2 and external heat exchange, avoids the loss of heat energy to be favorable to the energy saving loss, reduce the running cost of material heating stoving, the aluminium silicate is novel green thermal insulation material, has nontoxic harmless, high temperature resistant, safe and reliable, is fit for the thermal-insulated use of barrel outward appearance heat preservation.

Referring to fig. 1, in the present invention, a feed hopper 4 is provided at the top of one end of the cylinder 2 close to the driving motor 3, and a discharge port 25 is provided at the bottom of the other end of the cylinder 2; one end of the rotating shaft 5 is connected with the output end of the driving motor 3, the other end of the rotating shaft 5 extends into the barrel 2, and the outer circular surface of the rotating shaft 5 is provided with a helical blade; the structure that the rotating shaft 5 in the barrel body 2 is provided with the helical blades is adopted, materials in the barrel body can be overturned and dried through the helical blades, the drying quality is favorably ensured, the drying production efficiency is improved, and the materials can move towards the discharge hole 25 of the barrel body 2 under the thrust action of the helical blades, so that the continuous drying operation is realized.

As shown in fig. 1, the cylinder 2 of the present invention is axially horizontally disposed or axially inclined, when the cylinder 2 is axially inclined, the inclined angle between the axial center line of the cylinder 2 and the horizontal plane is 5-8 °, so that the material in the cylinder 2 can be smoothly discharged due to the inclined structure, and meanwhile, if the inclined angle is too small, the material is not discharged easily, and if the inclined angle is too large, the material is easily conveyed and discharged from the discharge hole 25 at the bottom end of the cylinder 2, thereby affecting the drying effect; the barrel 2 is generally made of stainless steel materials, and the stainless steel materials are not easy to rust and have good heat conductivity, so that the drying operation of materials in the barrel 2 is facilitated.

As shown in the figure 1, the working principle of the utility model is as follows: firstly, conveying biomass fuel to be dried into a barrel through a feed hopper, inputting high-temperature gas from a gas inlet on the barrel, enabling the high-temperature gas to pass through a central heating pipe and a barrel wall heating cavity and be output from a gas outlet on the barrel, and enabling the high-temperature gas to exchange heat with the interior of the barrel through the central heating pipe and the barrel wall heating cavity to heat and dry the biomass fuel in the barrel; and then, the driving motor is started to drive the rotating shaft and the helical blade to rotate, so that the biomass fuel in the barrel can be turned, the drying operation efficiency is further improved, and meanwhile, under the thrust of the helical blade, the dried biomass fuel is discharged from the discharge hole, and the drying operation process of the biomass fuel is completed.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can be within the technical scope of the present invention, and the technical solution and the concept of the present invention should be replaced or changed equivalently, and all should be included in the scope of the present invention.

Claims

1. A biomass fuel drying device is characterized by comprising a machine base (1) and a cylinder body (2) arranged on the machine base (1); the wall of the barrel body (2) is of a double-layer structure, a heating cavity is arranged between the inner layer and the outer layer of the barrel wall, a central heating pipe (22) with an inner cavity is arranged at the axial center of one end of the barrel body (2), and the inner cavity of the central heating pipe (22) is communicated with the barrel wall heating cavity; a driving motor (3) is installed at one end of the base (1), the output end of the driving motor (3) is connected with a rotating shaft (5), the rotating shaft (5) is coaxially and rotatably connected with the barrel body (2), and one end of the rotating shaft (5) is of a hollow structure and extends into the barrel body (2) to be inserted into the central heating pipe (22); and an air inlet (21) and an air outlet (24) which are communicated with the cylinder wall heating cavity are respectively arranged at two ends of the cylinder body (2), and a heat insulation layer (23) is further arranged on the outer surface of the cylinder body (2).

2. The biomass fuel drying device according to claim 1, wherein one end of the rotating shaft (5) is connected with the output end of the driving motor (3), the other end of the rotating shaft (5) extends into the cylinder (2) and the outer circular surface of the rotating shaft is provided with a helical blade.

3. The biomass fuel drying device according to claim 1, wherein a feed hopper (4) is arranged at the top of one end of the cylinder (2) close to the driving motor (3), and a discharge hole (25) is arranged at the bottom of the other end of the cylinder (2).

4. The biomass fuel drying device according to claim 1, characterized in that the cylinder (2) is arranged horizontally in the axial direction.

5. The biomass fuel drying device according to claim 1, characterized in that the cylinder (2) is axially inclined.

6. The biomass fuel drying device according to claim 5, wherein the inclined angle between the axial center line of the cylinder (2) and the horizontal plane is 5-8 °.