CN216470922U - Powder pre-collection device for desulfurization gypsum calcination - Google Patents
Powder pre-collection device for desulfurization gypsum calcination Download PDFInfo
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- CN216470922U CN216470922U CN202122987074.7U CN202122987074U CN216470922U CN 216470922 U CN216470922 U CN 216470922U CN 202122987074 U CN202122987074 U CN 202122987074U CN 216470922 U CN216470922 U CN 216470922U
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Abstract
The utility model discloses a pre-collecting device for powder for desulfurized gypsum calcination, which comprises a dust collector, a pipe chain conveyor and a sedimentation elbow, wherein the sedimentation elbow is arranged between a conveying pipeline and the dust collector, and the sedimentation elbow extends downwards and is communicated with the pipe chain conveyor through a guide pipe; wherein: a choked flow collecting plate and a resistance-reducing collecting plate embedded in the flow guide pipe are arranged along the bending direction of the sedimentation turning pipe; the inclined angle from the top end to the bottom end of the choked flow collecting plate is gradually horizontal, and the horizontal tail end of the choked flow collecting plate is arranged on the flow guide pipe; the resistance-reducing collecting plates are transversely arranged inside the flow guide pipe, the end parts of the resistance-reducing collecting plates are horizontal to the end parts of the flow guide pipe, and the resistance-reducing collecting plates are arranged between the flow-resisting collecting plates and the pipe chain conveyor. The utility model discloses can accelerate the gypsum powder and improve the decurrent flow rate of powder, improve the rate of gathering dust of powder.
Description
Technical Field
The utility model relates to the technical field of gypsum board manufacturing, in particular to a powder pre-collecting device for calcining desulfurized gypsum.
Background
In the production process of gypsum boards, calcined gypsum powder needs to be collected, and in order to prevent the powder from flying during the collection, the conventional cloth bag dust collecting device can collect dust for the gypsum powder and enable the gypsum powder to enter the next production procedure, but the cloth bag dust collecting device has low dust collecting efficiency, and needs to be matched with a pre-collecting device for use, so that the dust collecting efficiency is improved.
The existing pre-collecting device is provided with a sedimentation elbow pipe between a feeding pipeline of powder and a dust collector, the powder can flow into a pipe chain conveying device for stirring and conveying the powder in an acceleration mode when entering from the sedimentation elbow pipe, the dust collecting effect of dust is improved, but the flow rate of the powder entering the sedimentation elbow pipe is reduced after flow blocking, and the powder is not beneficial to dust collection.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pre-collection device for powder for calcining desulfurized gypsum, which aims to solve the technical problem that the flow speed is reduced when the powder is pre-collected in the prior art.
In order to solve the technical problems, the utility model specifically provides the following technical scheme:
the utility model provides a powder pre-collecting device for desulfurized gypsum calcination, which comprises:
the dust collector is provided with a main fan and a conveying pipeline in a communication mode at two ends respectively, and the main fan performs negative pressure suction on the dust collector and the conveying pipeline so that powder entering the conveying pipeline enters the dust collector to be collected under the negative pressure suction;
the pipe chain conveyor is arranged below the dust collector and communicated with the dust collector;
the sedimentation turning pipe is arranged between the conveying pipeline and the dust collector, extends downwards and is communicated with the pipe chain conveyor through the guide pipe;
wherein:
a flow resisting collecting plate and a resistance reducing collecting plate embedded in the flow guide pipe are arranged along the bending direction of the sedimentation turning pipe;
the top end of the flow-resisting collecting plate is arranged at the joint of the conveying pipeline and the sedimentation elbow pipe, the tail end of the flow-resisting collecting plate is arranged at the joint of the sedimentation elbow pipe and the dust collector, the inclination angle from the top end to the bottom end of the flow-resisting collecting plate is gradually horizontal, and the horizontal tail end of the flow-resisting collecting plate is arranged on the flow guide pipe;
the drag reduction collecting plate is transversely installed inside the flow guide pipe, the end part of the drag reduction collecting plate is horizontal to the end part of the flow guide pipe, and the drag reduction collecting plate is arranged between the flow blocking collecting plate and the pipe chain conveyor.
As a preferable aspect of the present invention, the choked flow collecting plate comprises a plurality of steel plates installed laterally inside the settling turn pipe, a flow gap is provided between each two of the steel plates, and the steel plates are obliquely disposed inside the settling turn pipe.
As a preferable scheme of the present invention, the steel plate includes an upper-layer baffle plate and a lower-layer baffle plate, the flow gap includes an upper-layer pore space and a lower-layer pore space, the upper-layer pore space is disposed between every two upper-layer baffle plates, and the lower-layer pore space is disposed between every two lower-layer baffle plates;
the upper-layer baffle plate is arranged in a suspended mode in the horizontal direction of the lower-layer hole, and the lower-layer baffle plate is arranged in a suspended mode in the vertical direction of the upper-layer hole.
As a preferable scheme of the utility model, the drag reduction collecting plate comprises a first vertical plate, a second vertical plate and a third vertical plate, wherein the first vertical plate and the second vertical plate are vertically arranged below the lower layer baffle plate, the third vertical plate is arranged at a discharge outlet of the settling elbow pipe, the first vertical plate and the second vertical plate are connected through a first transverse plate, a second transverse plate is arranged between the third vertical plate and the settling elbow pipe, and a flow passage is formed between the second vertical plate and the second vertical plate.
In a preferred embodiment of the present invention, the lengths of the second riser, the first riser, and the third riser are sequentially increased.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the choked flow collecting plate is arranged in the sedimentation turning pipe, the resistance-reducing collecting plate is arranged at the lower end of the choked flow collecting plate, the choked flow collecting plate chokes flow of the gypsum powder in the horizontal direction so as to enable the gypsum powder to flow downwards into the conveyor, and the resistance-reducing collecting plate can accelerate the gypsum powder to improve the downward flow rate of the powder and improve the dust collection rate of the powder.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic structural diagram of a powder pre-collection device for desulfurization gypsum calcination provided by the utility model;
FIG. 2 is a partial structural view of a powder pre-collection device for desulfurization gypsum calcination according to the present invention;
fig. 3 is a schematic structural diagram of the pipe chain conveyor provided by the utility model.
The reference numerals in the drawings denote the following, respectively:
1-a dust collector; 2-a main fan; 3-a conveying pipeline; 4-a pipe chain conveyor; 5-settling and bending the pipe; 6-a pre-collection device; 7-a flow guide pipe; 8-steel plate; 9-a flow gap; 10-a stirring chamber; 11-stirring plate; 12-folding the material corner;
401-an outer shell; 402-a skeleton wheel; 403-bone chain conveyor belt; 404-powder outlet;
601-a choked flow collector plate; 602-a drag reducing collector plate;
6021-a first riser; 6022-second riser; 6023-third riser; 6024-a first cross plate; 6025-a second transverse plate; 6026-flow channel;
801-upper baffle plate; 802-lower baffle;
901-upper pore; 902 — lower layer pore.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1 to 3, the utility model provides a pre-collection device for powder of desulfurized gypsum calcination, comprising
The dust collector comprises a dust collector 1, wherein a main fan 2 and a conveying pipeline 3 are respectively communicated with two ends of the dust collector 1, the main fan 2 performs negative pressure suction on the dust collector 1 and the conveying pipeline 3, so that powder entering the conveying pipeline 3 enters the dust collector 1 to collect dust under the negative pressure suction;
the pipe chain conveyor 4 is arranged below the dust collector 1 and communicated with the dust collector 1;
the sedimentation transfer elbow 5 is arranged between the conveying pipeline 3 and the dust collector 1, and the sedimentation transfer elbow 5 extends downwards and is communicated with the pipe chain conveyor 4 through a guide pipe 7;
the pre-collecting device 6 is embedded and installed on the inner wall of the sedimentation elbow 5 and is arranged in a bending mode along the bending direction of the sedimentation elbow 5, and the pre-collecting device 6 conducts flow choking on powder transversely passing through the sedimentation elbow 5 and enables the powder to vertically flow downwards into the flow guide pipe 7.
Specifically, the conveying pipeline 3 is obliquely arranged on the side edge of the dust collector 1, the highest point of the conveying pipeline is higher than the highest point of the dust collector 1, the lowest point of the conveying pipeline is higher than the lowest point of the dust collector 1, the conveying pipeline 3 is directly connected with a discharge hole of the last powder process, and dust obliquely falls into the dust collector 1 from the highest point of the conveying pipeline 3. The main fan 2 is used for sucking air in the dust collector 1 and a circulation cavity connected with the dust collector 1 to enable the interior of the dust collector to form a cavity with certain negative pressure, powder falling from the conveying pipeline 3 is easy to accumulate, when the main fan 2 is introduced, the powder enters the dust collector 1 from the conveying pipeline 3 under the negative pressure suction, then is collected by a cloth bag in the dust collector 1 and enters the next process, and because the flow direction of dust when the main fan 2 sucks air is the suction direction of the fan, in order to prevent the dust from being sucked to the outside by the main fan 2, the wind direction of the main fan 2 and the falling direction of the dust are vertically and horizontally arranged.
The dust collector 1 in the present invention is a common cloth bag dust collector in the market, and the specific structure and the dust removal principle thereof are not described herein, and the rectangular dotted line part in fig. 1 is a cloth bag cylinder structure of the cloth bag dust collector.
The pipe chain conveyor 4 is a conveyor belt composed of a bone chain structure, a stirring rod for stirring powder is arranged in the pipe chain conveyor 4, a shell for preventing the powder from overflowing is sleeved outside the pipe chain conveyor 4, the shell is arranged at the lower end of the dust collector 1 and is hermetically connected with a cavity of the dust collector 1, the powder falling from the dust collector 1 is shaken off into the pipe chain conveyor 4, and the powder enters the next process under the stirring of the pipe chain conveyor 4.
In order to improve the dust removal efficiency of the dust collector 1, a downward-bent sedimentation elbow pipe 5 is arranged between the conveying pipeline 3 and the dust collector 1, the lower end of the sedimentation elbow pipe 5 is directly connected with the pipe chain conveyor 4 through a guide pipe 7, powder entering the sedimentation elbow pipe 5 from the conveying pipeline directly falls into the pipe chain conveyor 4 for pipe chain conveying, when the main fan 2 performs negative pressure suction on the dust collector 1 in the horizontal direction, the sedimentation elbow pipe 5 is subjected to negative pressure suction at the same time, certain negative pressure prevents the powder from being accumulated in the sedimentation elbow pipe 5, and the discharging speed of the dust is improved.
In order to prevent more powder from directly and transversely entering the dust collector 1 under the drive of negative pressure, a pre-collecting device 6 is arranged in the sedimentation elbow 5, and the pre-collecting device 6 chokes flow of transversely flowing powder in the sedimentation elbow 5, so that most of the powder falls into a flow guide pipe 7 and is conveyed to a pipe chain conveyor 4 through the flow guide pipe 7.
The utility model is used for conveying any fine powder in any texture, improves the collection speed of the powder on the basis of ensuring the circulation speed, saves the powder collection time, and has simple structure and low production cost.
Preferably, the upper end of the settling elbow 5 is connected with the conveying pipeline 3, the inclination angle of the upper end of the settling elbow 5 is the same as that of the conveying pipeline 3, and the bending angle of the lower end of the settling elbow 5 is gradually horizontal and is connected with the dust collector 1.
The front half part of the sedimentation elbow pipe 5 is connected to the conveying pipeline 3, the inclination angle of the front half part is large, the inclination angle of the rear half part of the sedimentation elbow pipe 5 is small, and when powder falling into the sedimentation elbow pipe 5 enters from the front half part with the large inclination angle, the obtained acceleration is large, the falling speed is high, and more powder can fall into the guide pipe 7; when a part of powder enters the rear half section of the settling elbow pipe 5, the falling inclined impact speed is reduced, a part of powder is inclined impacted into the flow guide pipe 7, a part of powder is inclined impacted to the bottom of the dust collector 1 and directly falls into the pipe chain conveyor 4, a very small part of powder horizontally enters the dust collector 1 under negative pressure suction to collect dust again under the action of a cloth bag, and finally the powder is shaken off into the pipe chain conveyor 4.
The bending angle of the sedimentation elbow pipe 5 is firstly sharp and then gentle, so that the pre-dust collection effect of the powder is favorably improved, the falling speed of the powder is improved, and the dust collection efficiency is improved.
Preferably, the guide pipe 7 is arranged at the horizontal bending part of the sedimentation elbow pipe 5, the guide pipe 7 is of a bucket-shaped structure which gradually shrinks downwards, the upper end of the guide pipe 7 is connected with the bottom of a feed inlet of the dust collector 1, and the lower end of the guide pipe 7 is communicated with the pipe chain conveyor 4.
The radius of the upper end of the flow guide pipe 7 is large, the peripheral side of the radius of the upper end of the flow guide pipe is directly connected with the turning part of the sedimentation turning elbow pipe 5, powder flowing from the front half part of the sedimentation turning elbow pipe 5 directly enters the pipe chain conveyor 4 from the front end part of the flow guide pipe 7, the powder falling from the horizontal part of the sedimentation turning elbow pipe 5 falls into the flow guide pipe 7 through the speed reduction of the pre-collecting device 6 and then falls into the pipe chain conveyor 4, and the bucket-shaped structure of the flow guide pipe 7 is favorable for collecting the powder and quickening the falling speed of the powder.
In the present embodiment, the pre-collecting device 6 comprises a flow-resisting collecting plate 601 installed along the bending direction of the settling elbow 5 and a drag-reducing collecting plate 602 embedded in the draft tube 7;
the top end of the choked flow collecting plate 601 is arranged at the joint of the conveying pipeline 3 and the settling elbow 5, the tail end of the choked flow collecting plate 601 is arranged at the joint of the settling elbow 5 and the dust collector 1, the inclination angle from the top end to the bottom end of the choked flow collecting plate 601 is gradually horizontal, and the horizontal tail end of the choked flow collecting plate 601 is arranged on the flow guide pipe 7;
the drag reduction collecting plate 602 is transversely installed inside the draft tube 7, the end of the drag reduction collecting plate 602 is horizontal to the end of the draft tube 7, and the drag reduction collecting plate 602 is arranged between the flow resisting collecting plate 601 and the tube chain conveyor 4.
The choked flow collecting plate 601 is two layers of carbon steel plates which are embedded and arranged on the inner side of the settling elbow pipe 5 and has an elevation angle of 4 degrees, when a large amount of dust falls in the settling elbow pipe 5, the choked flow collecting plate 601 chokes the flow of the dust in the dust collector 1, the dust which is subjected to choked flow is prevented from completely flowing into a gap of the carbon steel plates under the inertia effect, and the dust which is subjected to choked flow falls into the flow guide pipe 7 downwards under the blocking of the carbon steel plates.
Because the tail end of the flow-resisting collecting plate 601 is gradually horizontal, dust entering the tail end of the flow-resisting collecting pipe easily enters the dust collector 1 under the inertia effect, in order to improve the dust collecting efficiency of the flow-resisting collecting pipe, a resistance-reducing collecting plate 602 is arranged between the tail end of the flow-resisting collecting pipe and the flow guiding pipe 7, and the resistance-reducing collecting plate 602 is used for reducing the resistance of dust flowing between the flow guiding pipe 7 and the dust collector 1, so that more dust falls into the flow guiding pipe 7 downwards.
Preferably, the choked flow collecting plate 601 comprises a plurality of steel plates 8 transversely installed inside the settling elbow 5, a flow gap 9 is arranged between every two steel plates 8, and the steel plates 8 are obliquely arranged inside the settling elbow 5. The steel sheet 8 is used for choked flow to the dust, and is provided with between it and flows the gap 9, when main fan 2 carries out the negative pressure suction to subsiding elbow 5, flows the gap 9 and does not influence the flow of wind, does not influence the suction effect of wind to the dust yet.
Preferably, in order to improve the flow-resisting effect of the flow-resisting collecting plate 601, the steel plate 8 includes an upper-layer baffle plate 801 and a lower-layer baffle plate 802, the flow gap 9 includes an upper-layer pore 901 and a lower-layer pore 902, the upper-layer pore 901 is disposed between every two upper-layer baffle plates 801, and the lower-layer pore 902 is disposed between every two lower-layer baffle plates 802; the upper baffle 801 is suspended in the horizontal direction of the lower hole 902, and the lower baffle 802 is suspended in the vertical direction of the upper hole 901.
The upper layer resistance plate 801 and the lower layer resistance plate 802 divide the space in the pipe of the settling elbow pipe 5 into three equal parts, the three equal parts are arranged in a bending mode, and the three equal parts are communicated with the upper layer gap through the lower layer gap 902. The dust that flows into subside return bend 5 enters into these three equal parts space at random, because the space is crooked and narrow and small, and a large amount of dust receives the choked flow in the horizontal direction, so be difficult to flow out from the horizontal direction, and the steel sheet only carries out the choked flow to the dust with the mode of setting up in gap, does not influence main fan 2's negative pressure and attracts.
In this embodiment, the drag reduction collecting plate 602 includes a first riser 6021 and a second riser 6022 vertically disposed below the lower baffle 802, and a third riser 6023 disposed at the discharge outlet of the settling elbow pipe 5, the first riser 6021 and the second riser 6022 are connected by a first transverse plate 6024, a second transverse plate 6025 is disposed between the third riser 6023 and the settling elbow pipe 5, and a flow passage 6026 is formed between the second riser 6022 and the second riser 6022.
A first flow channel is formed between the first transverse plate 6024 and the flow guide pipe 7, the width of the flow channel is widest, the flow channel is used for collecting dust which directly falls from the front half end of the settling elbow pipe 5, and the steel plate 8 on the flow channel is used for preventing the dust from rising; the flow channel 6026 arranged between the second transverse plate 6025 and the third transverse plate has a narrow width, and is mainly used for reducing drag and guiding dust entering the rear half section of the settling elbow pipe 5.
Preferably, the second riser 6022, first riser 6021 and third riser 6023 increase in length in this order. Because the second riser 6022 and the third riser 6023 have different lengths, the opening at the bottom of the flow passage 6026 is a tilted opening, which is beneficial to enlarging the flow outlet of the flow passage 6026 and increasing the flow-out speed of the dust.
In this embodiment, the pipe chain conveyor 4 includes an outer casing 401, two framework wheels 402 respectively rotating at two ends inside the outer casing 401, and a framework conveyor belt 403 wrapped on the framework wheels 402;
the upper end of the outer shell 401 is respectively communicated with the flow guide pipe 7 and the dust collector 1, the lower end of the outer shell 401 is provided with a powder outlet 404, the bone chain conveying belt 403 is a hollow conveying belt, and powder entering from the upper end of the outer shell 401 passes through the bone chain conveying belt 403 and finally flows out from the powder outlet 404.
The outer case 401 collects dust flowing out of the draft tube 7 and the dust collector 1, and allows the dust to enter the powder outlet 404 by being conveyed by the bone chain conveyor belt 403, and finally the powder enters the next process. The bone chain conveyor belt 403 is a hollow conveyor belt, does not affect the blanking of powder therein, has a certain stirring effect, can stir and transport the powder therein, and prevents the accumulation of the powder.
Preferably, the inside parcel of bone chain conveyer belt 403 is provided with stirring chamber 10, drive at skeleton runner 402 rotates around stirring chamber 10 at bone chain conveyer belt 403, be provided with a plurality of stirring boards 11 of installing in stirring chamber 10 on bone chain conveyer belt 403, stir board 11 pierces skeleton runner 402 and make skeleton runner 402 drive bone chain conveyer belt 403 and rotate, stir board 11 and stir the powder that gets into stirring chamber 10 when rotating, make the powder flow into to the other end that is provided with powder outlet 404 from shell body 401 one end.
Preferably, in order to prevent a large amount of dust from flowing into the settling elbow 5 and causing blockage of the pre-collecting device 6, a dog-ear 12 is provided between the settling elbow 5 and the conveying pipe 3.
Preferably, in order to prevent powder from directly entering the dust collector 1 under the action of suction force, a discharge port of the settling elbow 5 is arranged close to the lower end of the dust collector 1, and an air suction port of the main fan 2 is arranged close to the upper end of the dust collector 1. A bevel is arranged between the wind direction of the main fan 2 and the powder, so that the powder can be prevented from directly entering the dust collector 1 under the suction of the main fan 2.
Through the powder pre-collection device of desulfurization gypsum calcination of this embodiment, can realize the dustless transportation to the powder, and adopt the fan to carry out negative pressure suction to the powder of whereabouts, prevent that the powder from blockking up the pipeline when the transportation, and adopt turn pipe and pre-collection device to carry out the pre-collection to the powder that gets into in the dust collector, a large amount of dusts are directly followed turn pipe department by the pre-collection device choked flow and fall to the pipe chain conveyer in, improve the speed of gathering dust, reduce the operating time of dust collector, and energy saving, and use the pipe chain conveyer to collect and transport whole powders of unloading, improve the effect of gathering dust, improve rate of transportation.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (5)
1. The utility model provides a powder pre-collection device that desulfurization gypsum was calcined which characterized in that includes:
the dust collector comprises a dust collector (1), wherein a main fan (2) and a conveying pipeline (3) are respectively communicated with two ends of the dust collector (1), the main fan (2) is used for carrying out negative pressure suction on the dust collector (1) and the conveying pipeline (3), so that powder entering the conveying pipeline (3) enters the dust collector (1) for dust collection under the negative pressure suction;
the pipe chain conveyor (4) is arranged below the dust collector (1) and communicated with the dust collector (1);
the sedimentation transfer elbow (5) is arranged between the conveying pipeline (3) and the dust collector (1), and the sedimentation transfer elbow (5) extends downwards and is communicated with the pipe chain conveyor (4) through a guide pipe (7);
wherein:
a flow resisting collecting plate (601) and a drag reduction collecting plate (602) embedded in the draft tube (7) are arranged along the bending direction of the settlement elbow pipe (5);
the top end of the flow-resisting collecting plate (601) is arranged at the joint of the conveying pipeline (3) and the settling elbow (5), the tail end of the flow-resisting collecting plate (601) is arranged at the joint of the settling elbow (5) and the dust collector (1), the inclination angle from the top end to the bottom end of the flow-resisting collecting plate (601) is gradually horizontal, and the horizontal tail end of the flow-resisting collecting plate (601) is arranged on the flow guide pipe (7);
the drag reduction collecting plate (602) is transversely installed inside the draft tube (7), the end part of the drag reduction collecting plate (602) is horizontal to the end part of the draft tube (7), and the drag reduction collecting plate (602) is arranged between the flow blocking collecting plate (601) and the pipe chain conveyor (4).
2. The device for pre-collecting the powder for calcination of desulfurized gypsum according to claim 1, wherein said flow-resisting collecting plate (601) comprises a plurality of steel plates (8) transversely installed inside said settling elbow (5), a flow gap (9) is provided between every two steel plates (8), and said steel plates (8) are obliquely installed inside said settling elbow (5).
3. The device for pre-collecting the powder for calcination of desulfurized gypsum according to claim 2, wherein said steel plate (8) comprises an upper baffle plate (801) and a lower baffle plate (802), said flow gap (9) comprises an upper pore space (901) and a lower pore space (902), said upper pore space (901) is disposed between every two upper baffle plates (801), said lower pore space (902) is disposed between every two lower baffle plates (802);
the upper-layer baffle plate (801) is arranged in a suspended mode in the horizontal direction of the lower-layer pore space (902), and the lower-layer baffle plate (802) is arranged in a suspended mode in the vertical direction of the upper-layer pore space (901).
4. The device for pre-collecting the powder for calcining the desulfurized gypsum according to claim 3, wherein the resistance-reducing collecting plate (602) comprises a first vertical plate (6021) vertically arranged below the lower baffle plate (802), a second vertical plate (6022) and a third vertical plate (6023) arranged at the discharge port of the settling elbow (5), the first vertical plate (6021) and the second vertical plate (6022) are connected through a first transverse plate 6024), a second transverse plate (6025) is arranged between the third vertical plate (6023) and the settling elbow (5), and a flow passage 6026 is formed between the second vertical plate (6022) and the second vertical plate (6022).
5. The desulfurized gypsum calcined powder pre-collection apparatus of claim 4, wherein the lengths of said second riser (6022), said first riser (6021), and said third riser (6023) are sequentially increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122987074.7U CN216470922U (en) | 2021-12-01 | 2021-12-01 | Powder pre-collection device for desulfurization gypsum calcination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122987074.7U CN216470922U (en) | 2021-12-01 | 2021-12-01 | Powder pre-collection device for desulfurization gypsum calcination |
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| CN216470922U true CN216470922U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122987074.7U Active CN216470922U (en) | 2021-12-01 | 2021-12-01 | Powder pre-collection device for desulfurization gypsum calcination |
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