A drying drum device

Abstract

A drying drum device relating to the field of alkali extraction and drying technology includes a rotating drum driven by a power source. The rotating drum has a wet material inlet and a dry material outlet at its two ends. The rotating drum is inclined so that the wet material inlet is higher than the dry material outlet. An annular baffle fixed to the inner wall of the rotating drum is provided inside the drum. Multiple small material balls are arranged in the inner cavity of the rotating drum between the annular baffle and the dry material outlet. A heating element is provided on the outer wall of the rotating drum between the annular baffle and the wet material inlet. This drying drum device enables low-cost and high-efficiency industrial-scale environmentally friendly alkali extraction and drying.

Description

Technical Field

[0001] This utility model relates to the field of alkali extraction and drying technology, and in particular to a drying drum device. Background Technology

[0002] As is generally known, the alkali extraction and drying process usually refers to a step in the production of alkaline substances, especially sodium carbonate, where drying is used to improve product purity and reduce moisture content. In the production of sodium carbonate through chemical reactions, because sodium carbonate is very pure, the drying methods used are also quite refined, such as spray drying and fluidized bed drying, and the equipment is also quite expensive. However, some environmentally friendly alkali extraction methods often involve alkaline extraction from waste materials to prevent environmental harm. For example, red mud alkali extraction involves the harmless treatment of red mud waste discharged during alumina production. Molding sand alkali extraction involves the removal and extraction of alkaline substances from the binders or additives in broken sand molds during refurbishment and reuse. Due to the large volume of industrial processing and the presence of many impurities and low purity, traditional refined drying methods are not suitable in terms of either cost or processing efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art and solve the existing technical problems, this utility model discloses a drying drum device that can carry out industrial-scale environmentally friendly alkali extraction and drying treatment at low cost and high efficiency.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0005] A drying drum device includes a rotating drum driven by a power source. The rotating drum has a wet material inlet and a dry material outlet at its two ends. The rotating drum is inclined so that the wet material inlet is higher than the dry material outlet. The rotating drum has an annular baffle whose outer edge is fixed to the inner wall of the rotating drum. The inner cavity of the rotating drum between the annular baffle and the dry material outlet has a plurality of crushed material balls. The outer wall of the rotating drum between the annular baffle and the wet material inlet has a heating component.

[0006] Furthermore, both ends of the rolling drum are provided with support rollers. Each support roller includes a support frame and two side-by-side support rollers rotatably mounted on the support frame. The support rollers are coaxial with the rolling drum. The outer wall of the rolling drum corresponding to the support roller is fixed with a positioning ring. The wheel surface of the support roller is provided with a groove for fitting and engaging the outer edge of the corresponding positioning ring.

[0007] Furthermore, the heating component is configured as a combustion chamber located below the rolling drum, and the top surface of the combustion chamber wall is in sealed frictional contact with the outer wall surface of the rolling drum.

[0008] Furthermore, the heating component is configured as an electrically heated ring pad that surrounds the outer wall of the rolling drum, and the positive and negative poles of the electrically heated ring pad are electrically connected to an external power source through conductive brushes.

[0009] Furthermore, the electric heating ring pad is covered with an insulation layer.

[0010] Furthermore, the power source includes a gear carrier, a drive gear rotatably mounted on the gear carrier, and a drive motor that drives the drive gear to rotate. The outer wall of the rolling cylinder is fitted with a driven gear ring that meshes with the drive gear.

[0011] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0012] The drying drum device disclosed in this utility model can put the wet material to be dried into the drum and heat it through the heating component. It can prevent the material from sticking by continuous rolling and stirring, and can also ensure uniform drying and improve drying efficiency. In addition, the inclined drum can allow the material to continuously enter from the wet material inlet and exit from the dry material outlet, realizing continuous and large-scale industrial drying operations. Before the material moves to the dry material outlet, it can be further crushed and granulated by crushing balls. The whole device is ingeniously designed, low in cost, and more suitable for drying in the environmentally friendly alkali extraction process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of one embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the annular partition;

[0015] Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0016] In the diagram: 01, Rolling drum; 02, Dry material outlet; 03, Wet material inlet; 04, Annular baffle; 05, Crushed material ball; 06, Heating assembly; 061, Conductive brush; 07, Power source component; 08, Support roller component; 081, Positioning ring; 082, Support roller; 083, Support frame; 09, Insulation layer. Detailed Implementation

[0017] The technical solution of this utility model will now be described with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicating directions or positional relationships, are only used to correspond to the accompanying drawings of this utility model for ease of description, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0018] Combined with appendix Figure 1-3 The drying drum device includes a rotating drum 01 driven by a power source 07. Depending on the requirements, the power source 07 includes a gear frame, a driving gear rotatably mounted on the gear frame, and a drive motor that drives the driving gear. A driven gear ring is fixedly fitted onto the outer wall of the rotating drum 01 and meshes with the driving gear. The drive motor drives the driving gear to rotate, thereby driving the rotating drum 01 to rotate and stir through the gear ring transmission. The rotating drum 01 has a wet material inlet 03 and a dry material outlet 02 at its two ends. The rotating drum 01 is inclined so that the wet material inlet 03 is higher than the dry material outlet 02. The inclined rotating drum 01 allows material to continuously enter from the wet material inlet 03 and exit from the dry material outlet 02. Dry material is discharged from outlet 02, enabling continuous and large-scale industrial drying operations. As needed, both ends of the rotating drum 01 are equipped with support rollers 08. Each support roller 08 includes a support frame 083 and two parallel support rollers 082 rotatably mounted on the support frame 083. The support rollers 082 are coaxial with the rotating drum 01. A positioning ring 081 is fixed to the outer wall of the rotating drum 01 corresponding to the support roller 08. The wheel surface of the support roller 082 is provided with a groove that is adapted to fit and engage the outer edge of the corresponding positioning ring 081. The support rollers 082 provide rolling support for the rotating drum 01, and at the same time, the support rollers 082 are always rolling and engaging the positioning rings 081, which can prevent the rotating drum 01 from falling off the support.

[0019] The rolling drum 01 is equipped with an annular baffle 04 whose outer edge is fixed to the inner wall of the rolling drum 01. Multiple crushing balls 05 are located inside the rolling drum 01 between the annular baffle 04 and the dry material outlet 02. These crushing balls 05 further crush and granulate the material moving to the dry material outlet 02. A heating assembly 06 is located on the outer wall of the rolling drum 01 between the annular baffle 04 and the wet material inlet 03. Heating the rolling drum 01 transfers heat to the material inside, drying it. As needed, see attached... Figure 3 As shown, the heating component 06 is configured as a combustion chamber located below the rotating drum 01. The top surface of the combustion chamber wall is in sealed frictional contact with the outer wall of the rotating drum 01. The combustion chamber can be directly heated by introducing hydrogen and oxygen through pipelines, or it can be heated by circulating high-temperature flue gas. Of course, the top surface of the combustion chamber wall can be sealed or open, but the open type has better heat transfer effect; or as shown in the attached figure... Figure 1 As shown, the heating component 06 is configured as an electric heating ring pad fixed to the outer wall of the rolling drum 01. The positive and negative poles of the electric heating ring pad are electrically connected to the external power source through the conductive brush 061. Specifically, the conductive brush 061 is configured as a ring fixed to the outer wall of the electric heating ring pad. The receiver of the external power source is located below the rolling drum 01 and is in contact with the conductive brush 061 to conduct electricity. The electric heating ring pad is covered with a heat insulation layer 09, which can reduce heat loss.

[0020] To implement the drying drum device described in this utility model, simply start the power source 07, control the drum 01, start the heating component 06, and then continuously add wet material to the wet material inlet 03. The wet material is stirred, heated and dried, then crushed by the crushing ball 05 and discharged from the dry material outlet 02.

[0021] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A drying drum device, characterized in that: The device includes a rolling drum (01) driven by a power source (07). The two ends of the rolling drum (01) are respectively provided with a wet material inlet (03) and a dry material outlet (02). The rolling drum (01) is inclined so that the wet material inlet (03) is higher than the dry material outlet (02). The rolling drum (01) is provided with an annular partition (04) whose outer edge is fixed to the inner wall of the rolling drum (01). The inner cavity of the rolling drum (01) between the annular partition (04) and the dry material outlet (02) is provided with a plurality of crushed material balls (05). The outer wall of the rolling drum (01) between the annular partition (04) and the wet material inlet (03) is provided with a heating component (06).

2. The drying drum device according to claim 1, characterized in that: Both ends of the rolling drum (01) are provided with support rollers (08). The support rollers (08) include a support frame (083) and two support rollers (082) arranged side by side and rotatably mounted on the support frame (083). The support rollers (082) are coaxial with the rolling drum (01). The outer wall of the rolling drum (01) is fixed with a positioning ring (081). The wheel surface of the support rollers (082) is provided with a groove for fitting and mounting the outer edge of the corresponding positioning ring (081).

3. The drying drum device according to claim 1, characterized in that: The heating component (06) is configured as a combustion chamber located below the rolling drum (01), and the top surface of the combustion chamber wall is in sealed frictional contact with the outer wall surface of the rolling drum (01).

4. The drying drum device according to claim 1, characterized in that: The heating component (06) is configured as an electric heating ring pad that is wrapped around the outer wall of the rolling drum (01). The positive and negative poles of the electric heating ring pad are electrically connected to an external power source through a conductive brush (061).

5. The drying drum device according to claim 4, characterized in that: The electric heating ring pad is covered with an insulation layer (09).

6. The drying drum device according to claim 1, characterized in that: The power source component (07) includes a gear carrier, a drive gear rotatably mounted on the gear carrier, and a drive motor that drives the drive gear to rotate. The outer wall of the rolling cylinder (01) is fitted with a driven gear ring that meshes with the drive gear.

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