CN216898358U

CN216898358U - A high-efficient feeding subassembly for zinc calcine fluidized bed furnace

Info

Publication number: CN216898358U
Application number: CN202220696923.5U
Authority: CN
Inventors: 张静冰; 覃庶宏; 王盛强; 韦武更
Original assignee: Wuxuan Huifeng Industrial Co ltd
Current assignee: Wuxuan Huifeng Industrial Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-05
Anticipated expiration: 2032-03-29

Abstract

The utility model relates to the technical field of zinc calcine preparation, and particularly discloses a high-efficiency feeding assembly for a zinc calcine fluidized bed furnace, which comprises a blowing feeder; the front lower part of the blowing feeder is provided with a plurality of air injection holes, and the front upper part of the blowing feeder is provided with a material outlet; an air chamber is arranged at the rear side of the air injection hole, the rear side of the air chamber is communicated with an air inlet pipe, and the rear end of the air inlet pipe is detachably connected with an air pump or an air blower; an inclined feeding channel is arranged on the rear side of the material outlet; the rear end of the inclined feeding channel is provided with a material homogenizing groove, and material homogenizing devices are distributed in the material homogenizing groove. The utility model has simple structure, can effectively improve the uniformity of material feeding, obviously improves the combustion reactivity of the material, obtains combustion products with better fineness and without caking, and improves the quality of zinc calcine products.

Description

A high-efficient feeding subassembly for zinc calcine fluidized bed furnace

Technical Field

The utility model relates to the technical field of zinc calcine preparation, in particular to a high-efficiency feeding assembly for a zinc calcine fluidized bed furnace.

Background

One of the preparation methods of zinc calcine is solid particles generated by burning zinc concentrate serving as a raw material in a fluidized bed furnace, the conventional method is that the original zinc concentrate is directly conveyed to the upper part of the fluidized bed furnace by a conveyor belt and drops into the fluidized bed furnace for burning, and then a burning product, namely zinc calcine, is directly discharged from a discharge hole at the lower part of the fluidized bed furnace, so that the phenomenon that the stacking burning reaction of the zinc concentrate is insufficient or the obtained burning product is agglomerated into blocks is easy to occur sometimes, and the high-grade zinc calcine has small particles, uniform fineness and sufficient burning reaction. This is mainly due to the fact that there is currently no suitable efficient means in the art for efficiently dispersing the zinc concentrate feed to the fluidized bed furnace.

Disclosure of Invention

Aiming at the technical problems, the utility model provides the efficient feeding assembly for the zinc calcine fluidized bed furnace, which has a good using effect.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a high-efficiency feeding assembly for a zinc calcine fluidized bed furnace comprises a blowing feeder; the front lower part of the blowing feeder is provided with a plurality of air injection holes, and the front upper part of the blowing feeder is provided with a material outlet; an air chamber is arranged at the rear side of the air injection hole, the rear side of the air chamber is communicated with an air inlet pipe, and the rear end of the air inlet pipe is detachably connected with an air pump or an air blower; an inclined feeding channel is arranged on the rear side of the material outlet; the rear end of the inclined feeding channel is provided with a material homogenizing groove, and material homogenizing devices are distributed in the material homogenizing groove.

Further, the side view of the front lower part of the blowing feeder is arc-shaped, and the front view is rectangular.

Further, the front view of the material outlet is rectangular; the cross section of the feeding channel is also designed into a rectangle corresponding to the material outlet.

Furthermore, the plurality of air injection holes are arranged in a plurality of rows, and the upper and lower adjacent rows are distributed in a staggered manner.

Furthermore, the opening direction of the gas injection holes is obliquely and downwards formed.

Further, the refining device comprises a rotatable drum screen; the rotary screen is obliquely distributed, the upper end and the lower end of the rotary screen are of circular tube structures, the middle of the rotary screen is a cylindrical filter screen, the lower end of the rotary screen is closed, and the upper end of the rotary screen is provided with a feed inlet; the upper end of the drum screen is connected with the material homogenizing groove through a first rolling bearing; the upper part of the drum screen is also provided with a belt pulley; the lower part of the drum screen is connected with the material homogenizing groove through a second rolling bearing; and the upper end of the drum screen is correspondingly distributed with a feeding pipe.

The device further comprises a collecting hopper and a conveying belt, wherein the lower end of the collecting hopper is communicated with the feeding pipe; one end of the conveying belt is distributed above the collecting hopper.

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

1. the material homogenizing device is arranged, so that materials can be uniformly dispersed and flattened, and support is provided for uniformly feeding the materials into the feeding channel and improving the application effect of the blowing feeder.

2. Through being equipped with the blowing feeder, realize that the material from the material export slowly, evenly fall to the lower part before the blowing feeder of arc face structure, then jet-blast through the fumarole, blow the blowing to the material of evenly falling, realize showing improvement combustion reaction degree to even, the dispersion feeding of fluidized bed furnace, obtain the better, the combustion product of no caking of fineness, improve product quality.

Drawings

FIG. 1 is a side view of the blow feeder of the present invention;

fig. 2 is a front side partial cross-sectional view of the present invention.

Detailed Description

The utility model is described in detail below with reference to the following figures and embodiments:

in the following embodiments, "left, right", "front, and" rear "are merely directions for convenience of the descriptor, and do not limit the structure of the present invention.

As shown in fig. 1-2, a high-efficiency feeding assembly for a zinc calcine fluidized bed furnace comprises a blowing feeder 1; the front lower part of the blowing feeder 1 is provided with a plurality of air injection holes 7, and the front upper part of the blowing feeder is provided with a material outlet 8; the side view of the lower front portion of the blowing feeder 1 of this embodiment is an arc shape, and the front view is a rectangle, i.e. it is an arc plate structure. Then, a plurality of the air injection holes 7 are arranged in a plurality of rows, and the upper and lower adjacent rows are distributed in a staggered manner. For effectively preventing the adhesion of material particles or falling into the fumarole, the opening direction of the fumarole 7 is obliquely and downwards arranged. During preparation, the arc-shaped plate at the front lower part of the blowing feeder 1 is made of a smooth metal plate, and a plurality of air injection holes 7 are formed in the smooth metal plate; zinc concentrate material particles fall from the material outlet 8 along the arc-shaped plate surface, and are blown to the front side under the action of air flow ejected by the air jet holes 7 in a plurality of rows, so that the zinc concentrate material particles are efficiently dispersed and highly uniformly blown into the fluidized bed furnace, the combustion reaction degree is remarkably improved, combustion products with better fineness and without agglomeration are obtained, and the product quality is improved.

The rear side of the fumarole 7 of the embodiment is provided with an air chamber 6, the air chamber 6 of the embodiment is in a rectangular horn-shaped structure, the rear side of the air chamber 6 of the embodiment is communicated with an air inlet pipe 5, the rear end 2 of the air inlet pipe 5 is detachably connected with an air pump or a blower, and certainly, the air inlet pipe can also be directly connected with some high-pressure air pipelines; an inclined feeding channel 9 is arranged on the rear side of the material outlet 8; of course, the front view of the material outlet 8 is rectangular to correspond to the arc-shaped plate; the cross section of the feed channel 9 is also rectangular corresponding to the material outlet 8. During preparation, the lower bottom surface of the feeding channel 9 is smooth and obliquely designed, so that gliding feeding of zinc concentrate material particles is facilitated. The rear end of the feed channel 9 is provided with a material homogenizing groove 10, and material homogenizing devices are distributed in the material homogenizing groove 10.

The material homogenizing device is arranged mainly for dispersing zinc concentrate materials conveyed by the conveyor belt and ensuring uniform distribution of the materials on the whole surface of the feeding channel 9 with a rectangular cross section, and non-uniformity that a certain amount is large, a certain thick position is too thin or no material exists can not occur, so that the materials can continuously flow forwards uniformly. Thus, the refining apparatus of this embodiment comprises a rotatable trommel; the drum screen is distributed in an inclined manner, the upper end 13 and the lower end 13 of the drum screen are circular tube structures, the middle part of the drum screen is a cylindrical filter screen 11, when the drum screen is prepared, the cylindrical filter screen 11 can be prepared by preferentially using a sieve plate material, the sliding resistance of materials in the inner cavity of the cylindrical filter screen can be effectively reduced by using the sieve plate material, the materials can effectively slide downwards from the upper part of the inner cavity of the cylindrical filter screen 11 to the lower end edge of the inner cavity of the cylindrical filter screen while being sieved, and when the materials fall to the lower end, the materials are basically completely sieved; of course, the lower end of the cylindrical screen 11 is preferably closed to prevent the lower end from being fed linearly without passing through the screen, so that the material on the end side of the feeding channel 9 corresponding to the lower end is too thick and uneven, and when in use, the rotating speed of the drum screen is adjusted according to the feeding speed or the feeding amount at the upper end of the cylindrical screen 11; certainly, the lower end of the cylindrical filter screen 11 can also be non-closed, a small part is not uniform, the influence degree on the effect is limited, and the rotating speed of the drum screen can be increased to prevent the materials from being greatly dropped from the lower end of the drum screen; of course, the upper end of the drum screen is a feeding hole; the upper end of the drum screen is connected with the material homogenizing groove 10 through a first rolling bearing 15, and during preparation, the first rolling bearing 15 is fixedly connected with the material homogenizing groove 10 through a plurality of supporting arms 16; the upper part of the drum screen is also provided with a belt pulley 14, and then the belt obtains the driving rotating force of the motor; the lower part of the drum screen is connected with the material homogenizing groove 10 through a second rolling bearing 12 to play a supporting role; and the upper end of the drum screen is correspondingly distributed with a feeding pipe 17. The feeding pipe 17 is aligned with an inner cavity at the upper end of the drum screen to realize feeding; when the rotary screen is used, the rotary screen is driven to rotate by the motor through the belt, and the related rotating speed is matched and adjusted according to the material feeding speed and the unit feeding amount; however, the materials conveyed by the conveyor belt are generally uniform, so that the rotating speed of the rotary screen is generally not changed after being adjusted; then, in order to receive the blanking of the conveyor belt, the device further comprises a collecting hopper 19, wherein the collecting hopper 19 is reinforced and supported by a support frame 18; the lower end of the collecting funnel 19 is communicated with the feeding pipe 17; one end of the conveyor belt 20 is distributed above the collecting hopper 19. The discharge holes of the collecting hopper 19 of this embodiment are distributed on one side thereof, so that the bottom plate thereof is designed to be inclined to one side, and during the preparation, the bottom plate thereof is made of a relatively smooth material.

When in use, the lower rear part of the blowing feeder 1 is fixed on a floor slab through a fixing seat 4 and a fixing hole 3 on the fixing seat 4 so as to prevent the blowing feeder 1 from moving. The treated zinc concentrate material is conveyed through the conveyor belt 20, the conveyor belt 20 pours the conveyed zinc concentrate material into the collection hopper 19 from the upper part of the collection hopper, then the collection hopper 19 discharges from the feeding pipe 17 at the lower part of the collection hopper and directly conveys the zinc concentrate material to the inner cavity at the upper end of the cylindrical filter screen 11, then the cylindrical filter screen 11 is driven by a belt to rotate, the granular zinc concentrate material rotates in the inner cavity of the cylindrical filter screen 11, and because the cylindrical filter screen 11 is obliquely distributed, the zinc concentrate material can slide downwards from the upper end of the cylindrical filter screen 11 and simultaneously fall and become sieved, and thus the smooth and uniform blanking of the whole bottom surface of the feeding channel 9 can be realized; then the flat and uniform material falling to the bottom surface of the feeding channel 9 continuously moves downwards under the action of gravity, is discharged from the material outlet 8, then uniformly slides to the arc-shaped plate and is blown away by the air injection of the air injection holes 7, so that the highly uniform and highly dispersed material is fed into the fluidized bed furnace, the combustion reaction degree is obviously improved, a combustion product with better fineness and without agglomeration is obtained, and the product quality is improved.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that there are no specific structures but a few objective structures due to the limited character expressions, and that those skilled in the art may make various improvements, decorations or changes without departing from the principle of the utility model or may combine the above technical features in a suitable manner; such modifications, variations, combinations, or adaptations of the utility model using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the utility model.

Claims

1. A high-efficient feeding subassembly for zinc calcine fluidized bed furnace which characterized in that: comprises a blowing feeder; the front lower part of the blowing feeder is provided with a plurality of air injection holes, and the front upper part of the blowing feeder is provided with a material outlet; an air chamber is arranged at the rear side of the air injection hole, the rear side of the air chamber is communicated with an air inlet pipe, and the rear end of the air inlet pipe is detachably connected with an air pump or an air blower; an inclined feeding channel is arranged on the rear side of the material outlet; the rear end of the inclined feeding channel is provided with a material homogenizing groove, and material homogenizing devices are distributed in the material homogenizing groove.

2. A high efficiency feed assembly for a zinc calcine boiling furnace as claimed in claim 1, wherein: the side view of the front lower part of the blowing feeder is arc-shaped, and the front view of the blowing feeder is rectangular.

3. A high efficiency feed assembly for a zinc calcine boiling furnace as claimed in claim 2, wherein: the front view of the material outlet is rectangular; the cross section of the feeding channel is also designed into a rectangle corresponding to the material outlet.

4. A high efficiency feed assembly for a zinc calcine fluidized bed furnace according to claim 1, characterized in that: the plurality of air injection holes are arranged in multiple rows, and the upper and lower adjacent rows are distributed in a staggered manner.

5. A high efficiency feed assembly for a zinc calcine fluidized bed furnace according to claim 1, characterized in that: the opening direction of the gas injection hole is obliquely arranged downwards.

6. A high efficiency feed assembly for a zinc calcine fluidized bed furnace according to claim 1, characterized in that: the refining device comprises a rotatable drum screen; the rotary screen is obliquely distributed, the upper end and the lower end of the rotary screen are of circular tube structures, the middle of the rotary screen is a cylindrical filter screen, the lower end of the rotary screen is closed, and the upper end of the rotary screen is provided with a feed inlet; the upper end of the drum screen is connected with the material homogenizing groove through a first rolling bearing; the upper part of the drum screen is also provided with a belt pulley; the lower part of the drum screen is connected with the material homogenizing groove through a second rolling bearing; and the upper end of the drum screen is correspondingly distributed with a feeding pipe.

7. A high efficiency feed assembly for a zinc calcine boiling furnace as claimed in claim 6, wherein: the device also comprises an aggregate funnel and a conveyor belt, wherein the lower end of the aggregate funnel is communicated with the feeding pipe; one end of the conveying belt is distributed above the aggregate funnel.