CN213514740U

CN213514740U - Low-temperature rotary tube type dryer for upgrading coal

Info

Publication number: CN213514740U
Application number: CN202120416411.4U
Authority: CN
Inventors: 李海建; 杨波涛; 张旭东; 陈林; 杨杰
Original assignee: Xinjiang Chemical Design & Research Institute Co ltd
Current assignee: Xinjiang Chemical Design & Research Institute Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-06-22
Anticipated expiration: 2031-02-25

Abstract

The utility model discloses a quality-improving coal low-temperature rotary tube dryer, which comprises a dryer body, a bag-type dust remover is arranged in the dryer body, a draught fan is arranged in the bag-type dust remover of the dryer body, a steam dryer is arranged in the dryer body, a material cooler is arranged in the dryer body, a double-mixing dust suppressor is arranged in the material cooler of the dryer body, a gate valve is arranged on the upper surface of the dryer body, a tail gas outlet body is arranged on the upper surface of the dryer body, a feed inlet is fixedly connected on the left surface of the dryer body, a discharge outlet is fixedly connected on the right surface of the dryer body, a movable block is fixedly connected on the lower surface of the dryer body, a discharge outlet is fixedly connected on the lower surface of the movable block, a base is fixedly connected on the lower surface of a spring, a condensate outlet is fixedly, the heating is more uniform, the material crushing rate is reduced, and dust carried in tail gas is greatly reduced.

Description

Low-temperature rotary tube type dryer for upgrading coal

Technical Field

The utility model relates to a system coal technical field specifically is a matter coal low temperature rotary tube formula desicator is upgraded.

Background

The coal is dehydrated in a rotary tube type dryer by taking low-pressure steam as a heating medium and adopting an indirect heat exchange mode. Steam and coal can respectively go through the tube side or the shell side.

The prior common low-temperature rotary tube type dryer has the disadvantages that the heat source moves away from the tube side, the dried material moves away from the shell side, and the heating is uneven; the rotary space is large, the material rolling amplitude is large, the crushing rate is high, and dust carried in tail gas is excessive, so that the upgraded coal low-temperature rotary tube type dryer is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improve quality coal low temperature rotary tube formula desicator to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a quality-improving coal low-temperature rotary tube dryer comprises a dryer body, wherein a bag-type dust collector is arranged in the dryer body, a draught fan is arranged in the bag-type dust collector of the dryer body, a steam dryer is arranged in the dryer body, a material cooler is arranged in the dryer body, a double-mixing dust suppressor is arranged in the material cooler of the dryer body, a gate valve is arranged on the upper surface of the dryer body, a tail gas outlet body is arranged on the upper surface of the dryer body, a feeding port is fixedly connected on the left surface of the dryer body, a discharge port is fixedly connected on the right surface of the dryer body, supporting legs are fixedly connected on the lower surface of the dryer body, a movable block is fixedly connected on the lower surface of the dryer body, a discharge port is fixedly connected on the lower surface of the movable block, and a spring is arranged on, the dryer comprises a dryer body and is characterized in that a base is fixedly connected to the lower surface of the spring, a condensate outlet is fixedly connected to the lower surface of the dryer body, and a steam inlet is fixedly connected to the left surface of the dryer body.

Preferably, the circumferential surface of the gate valve penetrates through the lower surface of the dryer body in a movable mode, and the feeding port corresponds to the discharge port in position.

Preferably, the lower surfaces of the supporting legs and the base are fixedly connected with a layer of rubber pad, and the steam inlet is located right below the feed inlet.

Preferably, the steam inlet corresponds to the condensate outlet.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the upgraded coal low-temperature rotary tube type dryer is characterized in that upgraded coal is conveyed to a upgraded coal buffer bin through a conveyor belt, the upgraded coal falls into a feed port through the buffer bin, then wet materials are in indirect full contact with a saturated steam pipe in countercurrent operation through a dryer body and are subjected to heat exchange, the wet materials move from the feed port to a discharge port, the upgraded coal is reduced to qualified moisture when the materials reach the discharge port, qualified dry materials are discharged to a discharge conveying belt through the discharge port and are conveyed to a material cooler of the dryer body to be cooled, then the materials enter a double-mixing dust suppressor of the dryer body, a certain proportion of dust suppressant is added to be mixed, finally the mixed materials are conveyed to the outside of the conveying belt for sale, water vapor at a condensate outlet is conveyed to a bag-type dust remover through a water vapor induced draft fan to remove dust in the bag-type dust remover and then are discharged to the atmosphere, and a heat source of a drying system is, steam directly enters the dryer body, condensed water generated after heat exchange is discharged and sent to a boiler room for reuse, the heat source of the conventional common low-temperature rotary tube type dryer leaves a tube pass, the dried material leaves a shell pass, and the dried material is heated unevenly; the gyration space is big, and the material amplitude of rolling is big, leads to the percentage of damage high, leads to smuggleing secretly the dust in the tail gas too much, through above-mentioned design for the heating is more even and reduced the material percentage of damage, great reduction smuggleing secretly the dust in the tail gas.

(2) According to the quality-improved coal low-temperature rotary tube type dryer, in the using process of the dryer body, the dryer body is buffered by the base, the spring and the movable block, the shaking amplitude of the dryer body is reduced, the drying efficiency of the dryer body is further improved, and the service life is prolonged.

Drawings

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

FIG. 2 is a schematic view of the steam inlet structure of the present invention;

fig. 3 is a schematic view of the structure of the condensate outlet of the present invention.

In the figure: 1. a dryer body; 11. a gate valve; 12. a tail gas outlet body; 13. a feeding port; 14. a discharge port; 15. supporting legs; 16. a base; 17. a spring; 18. a steam inlet; 19. a condensate outlet; 2. a movable block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a quality-improved coal low-temperature rotary tube type dryer comprises a dryer body 1, a bag-type dust collector is arranged in the dryer body 1, a draught fan is arranged in the bag-type dust collector of the dryer body 1, a steam dryer is arranged in the dryer body 1, a material cooler is arranged in the dryer body 1, a double-mixing dust suppressor is arranged in the material cooler of the dryer body 1, a gate valve 11 is arranged on the upper surface of the dryer body 1, a tail gas outlet body 12 is arranged on the upper surface of the dryer body 1, a feeding port 13 is fixedly connected to the left surface of the dryer body 1, a discharge port 14 is fixedly connected to the right surface of the dryer body 1, a support leg 15 is fixedly connected to the lower surface of the dryer body 1, a movable block 2 is fixedly connected to the lower surface of the dryer body 1, the discharge port 14 is fixedly connected to the lower surface of the movable block 2, a spring 17 is, the lower surface of the dryer body 1 is fixedly connected with a condensate outlet 19, the left surface of the dryer body 1 is fixedly connected with a steam inlet 18, the circumferential surface of a gate valve 11 is movably connected to the lower surface of the dryer body 1 in a penetrating manner, a feed port 13 corresponds to a discharge port 14 in position, the lower surfaces of a support leg 15 and a base 16 are fixedly connected with a layer of rubber pad, the steam inlet 18 is positioned under the feed port 13, the steam inlet 18 corresponds to the condensate outlet 19 in position, upgraded coal is conveyed to an upgraded coal buffer bin through a conveyor belt, the upgraded coal falls into the feed port 13 through the buffer bin, then wet materials are operated through the dryer body 1 to be in indirect full contact with a saturated steam pipe in countercurrent operation and perform heat exchange, the wet materials move from the feed port 13 to the discharge port 14, the upgraded coal is reduced to qualified moisture when the materials reach the discharge port 14, and qualified dry materials are discharged to a discharge conveying, the material is sent into a material cooler of a dryer body 1 to be cooled, then enters a double-mixing dust suppressor of the dryer body 1, is added with a certain proportion of dust suppression agent to be mixed, and finally is sent to a fast-assembly conveying belt to be transported and sold, water vapor at a condensate outlet 19 is conveyed to a bag-type dust remover by an induced draft fan to remove dust in the water vapor and then is discharged into the atmosphere, a heat source of a drying system is mainly supplied by saturated steam, the steam directly enters the dryer body 1, condensate water generated after heat exchange is discharged to a boiler room to be reused, the drying adopts a non-contact low-temperature drying technology, low-pressure steam is used as a drying medium, the material moves in a dryer tube pass at a required speed, the steam is introduced in the drying pass to carry out heat exchange, so that moisture adsorbed on the surface of coal is heated and evaporated, the evaporated moisture is taken away by air sucked from a charging port, thereby achieving the purpose of drying, and the technical core is, the dried material goes through the tube pass. The heat source wraps the tube pass, so that the materials in the tube pass are uniformly heated, and the drying quality is stabilized; the internal space of the tube side is small, after the materials are uniformly distributed, the material rolling range is small during rotation, the breakage rate can be greatly reduced, meanwhile, the phenomenon that dust is discharged out of the heat source tube side of the conventional common low-temperature rotary tube type dryer along with tail gas, the dried material passes through the shell side, and the heated material is not uniform during heating is reduced; gyration space is big, the material amplitude of rolling is big, lead to the percentage of damage high, lead to smuggleing the dust secretly in the tail gas too much, through the design, make the heating more even and reduced the material percentage of damage, great reduction the dust smugglied secretly in the tail gas, in the use of desicator body 1, by base 16, spring 17, movable block 2 cushions desicator body 1, reduce the shake range of desicator body 1, further improvement the drying efficiency of desicator body 1, and service life is prolonged.

Specifically, the utility model discloses during the use:

the first step is as follows: the upgraded coal is conveyed to an upgraded coal buffer bin through a conveyor belt, the upgraded coal is dropped into a feeding port 13 through the buffer bin, then the wet material is in indirect full contact with a saturated steam pipe which runs in a countercurrent mode through a dryer body 1, heat exchange is carried out, the wet material moves towards a discharge port 14 from the feeding port 13, the upgraded coal is reduced to qualified moisture when the material reaches the discharge port 14, qualified dry material is discharged to a discharge conveying belt through the discharge port 14 and is conveyed to a material cooler of the dryer body 1 to be cooled, then the material enters a double-mixing dust suppression device of the dryer body 1, a certain proportion of dust suppression agent is added to be mixed, finally the mixed material is conveyed to the outside of the discharge conveying belt for sale, water gas at a condensate outlet 19 is conveyed to a bag-type dust remover through a draught fan to remove dust in the bag-type dust remover and then is discharged to the atmosphere, a heat source of a drying system is mainly supplied by saturated steam, and the, condensed water generated after heat exchange is discharged and sent to a boiler room for reuse, the heat source of the conventional common low-temperature rotary tube type dryer leaves a tube side, the dried material leaves a shell side, and the heated material is not uniformly heated; the gyration space is big, and the material amplitude of rolling is big, leads to the percentage of damage high, leads to smuggleing secretly the dust in the tail gas too much, through above-mentioned design for the heating is more even and reduced the material percentage of damage, great reduction smuggleing secretly the dust in the tail gas.

The second step is that: in the use of the dryer body 1, the dryer body 1 is buffered by the base 16, the spring 17 and the movable block 2, so that the shaking amplitude of the dryer body 1 is reduced, the drying efficiency of the dryer body 1 is further improved, and the service life is prolonged.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an improve quality coal low temperature rotary tube dryer, includes desicator body (1), desicator body (1) embeds there is the sack cleaner, the sack cleaner of desicator body (1) embeds there is the draught fan, desicator body (1) embeds there is steam drying-machine, desicator body (1) embeds there is material cooler, the material cooler of desicator body (1) embeds there is two dust suppression wares that mix, its characterized in that: the upper surface of the dryer body (1) is provided with a gate valve (11), the upper surface of the dryer body (1) is provided with a tail gas outlet body (12), a feeding port (13) is fixedly connected to the left surface of the dryer body (1), a discharging port (14) is fixedly connected to the right surface of the dryer body (1), the lower surface of the dryer body (1) is fixedly connected with supporting legs (15), the lower surface of the dryer body (1) is fixedly connected with a movable block (2), the lower surface of the movable block (2) is fixedly connected with a discharge hole (14), the lower surface of the dryer body (1) is provided with a spring (17), the lower surface of the spring (17) is fixedly connected with a base (16), the lower surface of the dryer body (1) is fixedly connected with a condensate outlet (19), the dryer is characterized in that a steam inlet (18) is fixedly connected to the left surface of the dryer body (1).

2. The upgraded coal low temperature rotary pipe dryer of claim 1, wherein: the circumferential surface of the gate valve (11) is movably connected to the lower surface of the dryer body (1) in a penetrating mode.

3. The upgraded coal low temperature rotary pipe dryer of claim 1, wherein: the feeding port (13) corresponds to the discharge port (14).

4. The upgraded coal low temperature rotary pipe dryer of claim 1, wherein: the lower surfaces of the supporting legs (15) and the base (16) are fixedly connected with a layer of rubber pad.

5. The upgraded coal low temperature rotary pipe dryer of claim 1, wherein: the steam inlet (18) is positioned right below the feeding port (13).

6. The upgraded coal low temperature rotary pipe dryer of claim 1, wherein: the steam inlet (18) corresponds to the condensate outlet (19).