CN221036661U

CN221036661U - Pellet drying bin

Info

Publication number: CN221036661U
Application number: CN202322772082.9U
Authority: CN
Inventors: 严礼祥; 严升
Original assignee: Chongqing Zhenyan Energy Saving Environmental Protection Technology Co ltd
Current assignee: Chongqing Zhenyan Energy Saving Environmental Protection Technology Co ltd
Priority date: 2023-02-06
Filing date: 2023-10-16
Publication date: 2024-05-28
Anticipated expiration: 2033-10-16

Abstract

The utility model discloses a pellet drying bin, which comprises a bin body and an air inlet pipe network, wherein the bin body is in a cuboid shape, at least two partitions are arranged in the bin body, all the partitions are arranged in parallel and are horizontally distributed along the length direction of the bin body so as to divide the bin body into a group of drying units; the section of the drying unit is in a shape of being wide at the upper part and narrow at the lower part so as to form a narrowed bottom, the bottom of the drying unit is provided with a discharge hole, a valve is arranged at the discharge hole, and the top opening of the drying unit forms a feed inlet; the air inlet pipe network comprises a main air inlet pipe and air distribution pipes, wherein one air distribution pipe is arranged at the top of each partition, the air distribution pipes extend along the partition, and air inlets of all the air distribution pipes are connected to the main air inlet pipe. The beneficial effects of the utility model are as follows: the drying bin has large capacity; the drying bin integrates the drying and storage functions; the vertical stacking height of the pellets is low, so that compared with the temperature of hot air introduced by a traditional shaft furnace, the pellets are low in drying energy consumption per unit weight.

Description

Pellet drying bin

Technical Field

The utility model relates to the technical field of metal smelting equipment, relates to a drying device, and in particular relates to a pellet drying bin.

Background

The pellet is one of important methods for agglomeration of powder ore, and plays an important role in recovery and recycling of metallurgical dust. After the powder ore is made into raw pellets, the pellets are obtained through drying, preheating, roasting and the like. Currently, the drying of green pellets is generally carried out in a shaft furnace. The main problems of shaft furnace drying are: the pellets in the shaft furnace are vertically stacked layer by layer, the requirement on the air inlet temperature is higher, the temperature is often more than 180 ℃, and the requirement on the air quantity is high, so that the energy consumption is higher; the shaft furnace with large treatment scale has great construction difficulty, and the shaft furnace cost and the system complexity are rapidly increased along with the increase of the treatment scale. As the pellet technology is increasingly used in the iron and steel smelting industry, large-scale drying equipment with large-scale processing capacity is required.

Disclosure of utility model

In view of this, the present utility model provides a pellet drying bin.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

The pellet drying bin comprises a bin body and an air inlet pipe network, and is characterized in that the bin body is cuboid, at least two partitions are arranged in the bin body, all the partitions are arranged in parallel and are horizontally distributed along the length direction of the bin body so as to divide the bin body into a group of drying units;

The section of the drying unit is in a shape of being wide at the upper part and narrow at the lower part so as to form a narrowed bottom, the bottom of the drying unit is provided with a discharge hole, a valve is arranged at the discharge hole, and a feed inlet is formed at the top opening of the drying unit;

The air inlet pipe network comprises a main air inlet pipe and air distribution pipes, wherein one air distribution pipe is arranged at the top of each partition, the air distribution pipes extend along the partition, and air inlets of all the air distribution pipes are connected to the main air inlet pipe.

In one embodiment, the partition includes a supporting wall with two inclined sides, the supporting walls are arranged in a herringbone shape, the upper edges of the supporting walls are connected, the lower edges are separated from each other, and the area between the two opposite supporting walls of the adjacent two partitions is enclosed into the drying unit.

In one embodiment, the bin body is in an open state, the top of the partition is lower than the upper edge of the bin body, and the upper area of the bin body is communicated with all the feed inlets of the drying units.

In one embodiment, the main air inlet pipe is arranged along the length direction of the bin body, the main air inlet pipe is positioned outside the side wall of the bin body, and an air inlet branch pipe is connected between the main air inlet pipe and an air inlet of each air distribution pipe.

In one embodiment, the bin body is supported by a group of door-shaped brackets in a suspended manner, all the door-shaped brackets are distributed along the length direction of the bin body, and the door-shaped brackets are arranged below the partition.

The beneficial effects of the utility model are as follows: the drying bin has large capacity; the drying bin integrates the drying and storage functions; the vertical stacking height of the pellets is low, so that compared with the temperature of hot air introduced by a traditional shaft furnace, the pellets are low in drying energy consumption per unit weight.

Drawings

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

FIG. 2 is a schematic view of the cartridge body separated by a partition;

FIG. 3 is a schematic cross-sectional view of a compartment partition;

Fig. 4 is a schematic structural view of the distributing system above the bin body.

Detailed Description

The utility model is further described below with reference to examples and figures.

The utility model provides a dry storehouse of pellet, includes the storehouse body 100 and air inlet pipe network, the storehouse body 100 is the cuboid form, be equipped with two at least cuts off 110 in the storehouse body 100, all cut off 110 parallel arrangement, and along the horizontal distribution of storehouse body 100 length direction, in order to with the storehouse body 100 separates into a set of drying unit 120. The cross section of the drying unit 120 is in a shape with a wide upper part and a narrow lower part so as to form a narrowed bottom, a discharge hole is formed in the bottom of the drying unit 120, a valve is arranged at the discharge hole, and a feed inlet is formed in the top opening of the drying unit 120. The air inlet pipe network comprises a main air inlet pipe 131 and air distribution pipes 133, wherein one air distribution pipe 133 is arranged at the top of each partition 110, the air distribution pipes 133 extend along the partition 110, and air inlets of all the air distribution pipes 133 are connected to the main air inlet pipe 131.

The plurality of drying units 120 divide the space of the bin body 100 to a certain extent, so that wet pellet distribution is facilitated. The drying unit 120 has a closed shape, and is convenient to discharge and control.

The partition 110 includes two inclined support walls 111, the two support walls 111 are arranged in a herringbone manner, the upper edges of the two support walls 111 are connected, the lower edges are separated from each other, and the areas between the two opposite support walls 111 of two adjacent partition 110 enclose the drying unit 120.

In this embodiment, the bin body 100 is in an open state, the top of the partition 110 is lower than the upper edge of the bin body 100, and the upper area of the bin body 100 is communicated with all the feed inlets of the drying units 120. In this way, the partition 110 occupies less space in the bin 100, and can hold more pellets, while the upper pellets automatically fall into the drying unit 120 during discharge.

The main air inlet pipes 131 are arranged along the length direction of the bin body 100, the main air inlet pipes 131 are positioned outside the side wall of the bin body 100, and an air inlet branch pipe 132 is connected between each main air inlet pipe 131 and an air inlet of each air distribution pipe 133.

The bin body 100 is supported by a group of door-shaped brackets 140 and is suspended, all the door-shaped brackets 140 are distributed along the length direction of the bin body 100, and the door-shaped brackets 140 are arranged below the partition 110. The door-shaped bracket 140 includes two bearing posts positioned at both sides of the bin body 100, and a bearing beam is connected between the upper ends of the two bearing posts. Because the bin body 100 is suspended, the dry ball conveying device receives the dry pellets flowing out from the discharge port below the drying unit 120.

In order to facilitate uniform placement of the wet pellets into the drying bin, a distribution system 200 is provided above the bin body 100. The partitions 110 extend in the Y direction and are arranged in the X direction.

As shown in fig. 4, the distribution system 200 includes a ball feeding belt 250 disposed above the bin 100 in the X direction. An upper travelling mechanism 210 is further arranged above the bin body 100, the upper travelling mechanism 210 supports a cloth belt 220 and a movable cloth device 230, and the upper travelling mechanism 210 is used for driving the cloth belt 220 and the movable cloth device 230 to move along the X direction. The material distribution belt 220 is arranged along the Y direction, the feeding end of the material distribution belt 220 is close to the ball feeding belt 250, a material guiding device 240 is further arranged close to the feeding end of the material distribution belt 220, the material guiding device 240 is relatively fixed with the material distribution belt 220, and the material guiding device 240 is arranged on the upper travelling mechanism 210 and used for guiding pellet materials from the ball feeding belt 250 to the feeding end of the material distribution belt 220. The distributing belt 220 conveys the pellet to the movable distributing device 230, and the movable distributing device 230 can move and position on the upper traveling mechanism 210 along the Y direction to feed the pellet into the bin 100.

The drying bin of this embodiment is big in capacity, and the vertical stack height of pellet is low, and the horizontal direction spreads and widens, according to the volume of the pellet of waiting to handle, uses the drying bin of certain volume in a flexible way, simultaneously because the vertical stack layer number of pellet is few, consequently the hot-blast temperature that lets in than traditional shaft furnace is low. The pellets after drying can still be stored in the drying bin without being discharged, so that the drying bin integrates the drying and storage functions.

Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a dry storehouse of pellet, includes the storehouse body (100) and air inlet pipe network, its characterized in that: the bin body (100) is in a cuboid shape, at least two partitions (110) are arranged in the bin body (100), all the partitions (110) are arranged in parallel and are horizontally distributed along the length direction of the bin body (100) so as to divide the bin body (100) into a group of drying units (120);

The section of the drying unit (120) is in a shape with a wide upper part and a narrow lower part so as to form a narrowed bottom, a discharge hole is formed in the bottom of the drying unit (120), a valve is arranged at the discharge hole, and a feed inlet is formed in the top opening of the drying unit (120);

The air inlet pipe network comprises a main air inlet pipe (131) and air distribution pipes (133), wherein one air distribution pipe (133) is arranged at the top of each partition (110), the air distribution pipes (133) extend along the partition (110), and air inlets of all the air distribution pipes (133) are connected to the main air inlet pipe (131).

2. The pellet drying bin of claim 1, wherein: the partition (110) comprises supporting walls (111) which are obliquely arranged on two sides, the supporting walls (111) on two sides are arranged in a herringbone mode, the upper edges of the supporting walls (111) on two sides are connected, the lower edges of the supporting walls are mutually separated, and the areas between the two opposite supporting walls (111) of the adjacent two partition (110) are surrounded to form the drying unit (120).

3. A pellet drying bin according to claim 2, wherein: the bin body (100) is in an open state, the top of the partition (110) is lower than the upper edge of the bin body (100), and the upper area of the bin body (100) is communicated with all the feed inlets of the drying units (120).

4. A pellet drying bin according to claim 2, wherein: the air inlet device is characterized in that the main air inlet pipe (131) is arranged along the length direction of the bin body (100), the main air inlet pipe (131) is positioned outside the side wall of the bin body (100), and an air inlet branch pipe (132) is connected between the main air inlet pipe (131) and an air inlet of each air distribution pipe (133).

5. A pellet drying bin according to any one of claims 1 to 4, wherein: the bin body (100) is supported by a group of door-shaped brackets (140) and is arranged in a suspended mode, all the door-shaped brackets (140) are distributed along the length direction of the bin body (100), and the door-shaped brackets (140) are arranged below the partition (110).