CN219150404U

CN219150404U - Magnetic separation type desulfurization device for lignite

Info

Publication number: CN219150404U
Application number: CN202320074540.9U
Authority: CN
Inventors: 杨亚方; 廖爱军; 郭煜
Original assignee: Maitreya Antelope Energy Co ltd; Antelope Environmental Protection Technology Co ltd
Current assignee: Maitreya Antelope Energy Co ltd; Antelope Environmental Protection Technology Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-09
Anticipated expiration: 2033-01-10

Abstract

The utility model discloses a magnetic separation type desulfurization device for brown coal, which comprises a shell, a cylinder body, a driving motor and a magnetic separation mechanism, wherein the shell is of a rectangular cavity structure with an opening at the upper part, a rotating shaft is arranged in the shell, and one side of the rotating shaft is connected with the driving motor; the upper part of the rotating shaft is provided with a cylinder, and a magnetic separation mechanism is arranged in the cylinder; the magnetic separation mechanism comprises a strong magnet, a first discharge hole and a second discharge hole, wherein the strong magnet is arranged on the rotating shaft through a fixing frame, and the strong magnet is arranged on the inner side of the cylinder; the barrel forms the area of selecting with the casing inboard, and the lower part of casing is provided with first discharge gate and second discharge gate. The method is used for solving the problem of low separation efficiency of the existing iron ore.

Description

Magnetic separation type desulfurization device for lignite

Technical Field

The utility model belongs to the technical field of clean production, and particularly relates to a magnetic separation type desulfurization device for lignite.

Background

China is the largest coal production and consumption country in the world, coal is the most main primary energy source in China, and the proportion of coal in an energy structure is reduced along with the development of new energy sources and clean energy sources in recent years, but the proportion is still more than 60% at present. The environmental pollution caused by the massive combustion of coal is quite serious, and the existing atmospheric pollutants are mainly soot type pollution, wherein 90% of the sulfur dioxide which is the most main atmospheric pollutant comes from the emission of coal, so that the desulfurization of coal is crucial for improving the atmospheric pollution condition. Coal desulfurization can be classified into three technologies, pre-combustion desulfurization, in-combustion desulfurization and post-combustion desulfurization. The patent relates to a desulfurization technology before combustion, namely, purifying coal before combustion to remove sulfur-containing components in raw coal.

Lignite is mineral coal with the lowest coalification degree, belongs to inferior coal, has abundant reserves in China, and has lower utilization rate. In recent years, under the background of shortage of coal resources and continuous rising of high-quality power coal prices, comprehensive development and utilization of low-quality lignite are a trend. In recent years, the company is devoted to development of technologies related to lignite upgrading processing and grinding, and the technical scheme relates to a desulfurization technology used in a lignite grinding production line.

Pre-combustion desulfurization of coal is classified into physical desulfurization, chemical desulfurization and microbial desulfurization. Sulfur in coal can be divided into two major categories, inorganic sulfur and organic sulfur. The main component of inorganic sulfur is sulfide such as pyrite, and a small amount of sulfate minerals such as calcium, iron and magnesium, wherein the main component is pyrite. These sulfur-containing inorganic minerals may be physically separated from coal according to differences in density, magnetism, and conductivity, or may be chemically removed. The organic sulfur exists in the organic molecule in a chemical bond form, is difficult to remove by a physical or chemical method, and needs to be converted into soluble sulfate by a microbial degradation method for further removal. Physical desulfurization methods are classified into wet methods and dry methods, and include gravity methods, flotation methods, magnetic separation methods, oil agglomeration methods, microwave enhancement methods, and the like.

The desulfurization before the combustion of coal is mainly carried out in coal preparation plants. For the dynamic coals such as bituminous coal, anthracite and the like, various mature coal preparation processes and equipment are provided for selection, and a plurality of large-scale coal preparation plants are built, so that desulfurized clean coal products can be provided. However, for lignite, there is no large-scale utilization at present, and due to the fact that lignite has large differences in quality, composition, properties and the like from those of bituminous coal, anthracite and the like, some existing desulfurization methods are not suitable for lignite desulfurization, and some improvements on desulfurization processes and equipment are required.

Aiming at the actual situation of the existing lignite drying and grinding production line of the company, a magnetic separation type desulfurization method is adopted in the production flow. In brown coal in southwest, sulfur-containing ore is mainly pyrite. Pyrite has weak magnetism and can be adsorbed by strong magnet. Most of pyrite can be separated from coal by using a strong magnetic separator.

Disclosure of Invention

The utility model aims to provide a magnetic separation type desulfurization device for lignite, which solves the problem of low separation efficiency of the existing iron ore.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the magnetic separation type desulfurization device for lignite comprises a shell, a cylinder body, a driving motor and a magnetic separation mechanism, wherein the shell is of a rectangular cavity structure with an opening at the upper part, a rotating shaft is arranged in the shell, and one side of the rotating shaft is connected with the driving motor; the upper part of the rotating shaft is provided with a cylinder, and a magnetic separation mechanism is arranged in the cylinder; the magnetic separation mechanism comprises a strong magnet, a first discharge hole and a second discharge hole, wherein the strong magnet is arranged on the rotating shaft through a fixing frame, and the strong magnet is arranged on the inner side of the cylinder; the barrel forms the area of selecting with the casing inboard, and the lower part of casing is provided with first discharge gate and second discharge gate.

Further, the rotating shaft is connected with the connecting hole on the shell through the bearing seat, one end of the rotating shaft is provided with a large chain wheel, and the large chain wheel is connected with a small chain wheel on the output shaft of the driving motor through a chain.

Further, a first observation door, a second observation door and a third observation door are arranged outside the shell.

Further, a plurality of clapboards are circumferentially arranged on the outer wall of the cylinder body.

Further, the upper portion of casing is provided with the feed inlet, and the lower part of feed inlet is provided with the slope stock guide.

Further, the strong magnet is of a semi-arc structure, and one end of the strong magnet is close to the first discharge hole.

Compared with the prior art, the utility model has at least one of the following beneficial effects:

1. the inside at the casing is provided with the pivot, and is provided with the barrel on pivot upper portion, and the barrel is inside to be provided with strong magnet, and the material gets into the back and contacts the barrel surface, and the inside pyrite of material adsorbs, and other materials derive from the second discharge gate, and the material of taking pyrite follows the barrel and rotates, drops to derive in the first discharge gate when removing to not having strong magnet region, realizes the magnetic separation.

2. The whole equipment is simple in structure, and magnetic separation is carried out by adopting the mode, so that the magnetic separation efficiency can be greatly improved.

Drawings

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

Fig. 2 is a schematic diagram of a part of the structure of the driving motor of the present utility model.

In the figure: 1-shell, 2-cylinder, 3-baffle, 4-driving motor, 5-chain, 6-first observation door, 7-strong magnet, 8-third observation door, 9-second observation door, 11-first discharge gate, 12-second discharge gate, 13-pivot, 14-little sprocket, 15-big sprocket, 16-bearing frame, 17-slope stock guide.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the following description is taken in conjunction with the accompanying drawings

And examples, the present utility model will be described in further detail. It should be understood that the specific embodiments described herein

The examples are only for explaining the present utility model and are not intended to limit the present utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by "front, rear, upper, lower, left, right", "inner, outer", "bottom, top", etc. are generally based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and these directional terms do not indicate or imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present utility model.

Example 1

Referring to fig. 1 and 2, a magnetic separation type desulfurization device for lignite comprises a shell 1, a cylinder 2, a driving motor 4 and a magnetic separation mechanism, wherein the shell 1 is of a rectangular cavity structure with an opening at the upper part, a rotating shaft 13 is arranged in the shell 1, and one side of the rotating shaft 13 is connected with the driving motor 4; the upper part of the rotating shaft 13 is provided with a cylinder body 2, and a magnetic separation mechanism is arranged in the cylinder body 2; the magnetic separation mechanism comprises a strong magnet 7, a first discharge hole 11 and a second discharge hole 12, wherein the strong magnet 7 is arranged on a rotating shaft 13 through a fixing frame, and the strong magnet 7 is arranged on the inner side of the cylinder 2; the cylinder body 2 and the inner side of the shell 1 form a drop zone, and a first discharge hole 11 and a second discharge hole 12 are arranged at the lower part of the shell 1; in the above-mentioned scheme, be provided with the pivot inside casing 1, can drive through driving motor, and be provided with the barrel in pivot upper portion, rotate following the pivot, be provided with strong magnet on the inner wall of barrel, for the permanent magnet, set up in the pivot through the bearing frame, the material can adsorb on the outer wall of barrel from the feed inlet entering back iron ore, rotates the in-process when the barrel rotates strong magnet end, and iron ore drops, collects from the discharge gate.

Example 2:

in this embodiment, the rotating shaft 13 is further described on the basis of the existing embodiment 1, the rotating shaft 13 is connected with a connecting hole on the housing 1 through a bearing seat 16, one end of the rotating shaft 13 is provided with a large sprocket 15, and the large sprocket 15 is connected with a small sprocket 14 on the output shaft of the driving motor 4 through a chain 5; the first observation door 6, the second observation door 9 and the third observation door 8 are arranged outside the shell 1; a plurality of baffle plates 3 are circumferentially arranged on the outer wall of the cylinder body 2; the upper part of the shell 1 is provided with a feed inlet, and the lower part of the feed inlet is provided with an inclined guide plate 17; the strong magnet 7 is of a semi-arc structure, and one end of the strong magnet 7 is close to the first discharge hole 11; the shell can adsorb through the barrel after the feed inlet feeding, just leads the material through first discharge gate of rear end and second discharge gate, and after the material was followed the feed inlet feeding, quick through the barrel outer wall realized selecting separately, improved separation efficiency.

The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the utility model as well as other embodiments.

Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various variations and modifications may be made to the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, drawings and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will be apparent to those skilled in the art.

Claims

1. A magnetic separation formula desulphurization unit for brown coal, includes casing (1), barrel (2), driving motor (4) and magnetic separation mechanism, its characterized in that: the shell (1) is of a rectangular cavity structure with an opening at the upper part, a rotating shaft (13) is arranged in the shell (1), and one side of the rotating shaft (13) is connected with the driving motor (4); the upper part of the rotating shaft (13) is provided with a cylinder (2), and a magnetic separation mechanism is arranged inside the cylinder (2); the magnetic separation mechanism comprises a strong magnet (7), a first discharge hole (11) and a second discharge hole (12), wherein the strong magnet (7) is arranged on a rotating shaft (13) through a fixing frame, and the strong magnet (7) is arranged on the inner side of the cylinder body (2);

a falling selection area is formed between the cylinder body (2) and the inner side of the shell (1), and a first discharge hole (11) and a second discharge hole (12) are formed in the lower portion of the shell (1).

2. The magnetic separation type desulfurization device for lignite according to claim 1, wherein: the rotating shaft (13) is connected with a connecting hole on the shell (1) through a bearing seat (16), one end of the rotating shaft (13) is provided with a large chain wheel (15), and the large chain wheel (15) is connected with a small chain wheel (14) on the output shaft of the driving motor (4) through a chain (5).

3. The magnetic separation type desulfurization device for lignite according to claim 1, wherein: the outside of casing (1) is provided with first observation door (6), second observation door (9) and third observation door (8).

4. The magnetic separation type desulfurization device for lignite according to claim 1, wherein: a plurality of clapboards (3) are circumferentially arranged on the outer wall of the cylinder body (2).

5. The magnetic separation type desulfurization device for lignite according to claim 1, wherein: the upper portion of casing (1) is provided with the feed inlet, and the lower part of feed inlet is provided with slope stock guide (17).

6. The magnetic separation type desulfurization device for lignite according to claim 1, wherein: the strong magnet (7) is of a semi-arc structure, and one end of the strong magnet (7) is close to the first discharge hole (11).