CN217764231U - Ferrous sulfate monohydrate apparatus for producing - Google Patents

Abstract

The utility model provides a ferrous sulfate monohydrate production device, which comprises a feeder, a throwing machine, a rotary kiln, a bag-type dust remover, an exhaust draught fan, an exhaust chimney, a crusher, a hoister and a finished product storage hopper; the rotary kiln material lifting device also comprises a hot gas inlet, a scraper support, a scraper and a plurality of rings of material lifting pieces on the rotary kiln. The production device enables the materials and hot air to enter the rotary kiln in the same direction, so that the materials and the hot air are directly contacted and heated, the materials are uniformly heated, and the heat utilization rate and the drying efficiency are improved; the scraper which does not rotate along with the kiln body is arranged in the kiln body, so that materials adhered to the inside of the kiln body are scraped and then directly contacted with hot air for drying, the phenomenon of material wall hanging is effectively avoided, continuous feeding production is ensured, and the production efficiency is high; in addition, this internal material that still sets up the lifting blade and will tentatively dry of kiln is raised, again with hot-blast abundant contact drying, guarantees that the product level is up to standard, the particle diameter is even, product quality is high.

Description

Ferrous sulfate monohydrate apparatus for producing

Technical Field

The utility model relates to a chemical production equipment, concretely relates to ferrous sulfate monohydrate apparatus for producing.

Background

The ferrous sulfate monohydrate is mainly prepared from ferrous sulfate heptahydrate, which is also called as iron vitriol and copperas, and the refined product is light green sand-shaped crystal. After production and centrifugation, the ferrous sulfate is relatively wet, and the moisture content is about 40%. Thus, the production flow of ferrous sulfate monohydrate is generally: heating and drying ferrous sulfate heptahydrate with the water content of about 40 percent → removing impurities → crushing → packaging.

At present, ferrous sulfate monohydrate apparatus for producing, the structure is as shown in fig. 5, including the batcher, be equipped with the hopper on the batcher, the thrower is connected to the batcher, the thrower is connected with the rotary kiln, the rotary kiln includes the kiln body, be connected with the actuating mechanism who makes its rotation on the kiln body, the one end of kiln body is equipped with the feeder hopper, be equipped with on the feeder hopper run through its slope and extend into this internal inlet pipe of kiln, the inlet pipe is connected with the thrower, the other end of kiln body is equipped with out the hopper, the outside cladding of kiln body has the cover heating chamber that presss from both sides, the air intake that presss from both sides the cover is connected with the natural gas burner, the upper end that goes out the hopper is connected through blast pipe and sack cleaner, bottom and conveyer are connected, the sack cleaner passes through the waste gas draught fan and is connected with the exhaust chimney, the conveyer is connected with the breaker, the breaker passes through the lifting machine and is connected with the finished product storage bucket. Because the rotary kiln of the production device adopts the jacketed rotary kiln, the materials are indirectly heated with hot air, so that the heating is uneven, the moisture content of the ferrous sulfate heptahydrate is large, the heat utilization rate is low, the drying efficiency is low, a large amount of materials are adhered to the inner wall of the rotary kiln, the materials are frequently stopped, the continuous automatic production cannot be realized, the production efficiency is high, the moisture of the products does not reach the standard, and the particle size is uneven.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a ferrous sulfate monohydrate production device, the rotary kiln is provided with a hot air inlet and a feed hopper at the feed end, so that the materials are directly contacted and heated with hot air, the structure of the existing jacket type indirect heating is changed, the materials are uniformly heated, and the heat utilization rate and the drying efficiency are improved; the scraper which does not rotate along with the kiln body is arranged in the kiln body, so that materials adhered to the inside of the kiln body are scraped and then are directly contacted with hot air for drying, the phenomenon of wall hanging of the materials is effectively avoided, the rotary kiln does not need to be stopped, continuous feeding production is ensured, and the production efficiency is high; in addition, this internal material that still sets up the lifting blade and will tentatively dry of kiln is raised, again with hot-blast abundant contact drying, guarantees that the product level is up to standard, the particle diameter is even, product quality is high.

In order to achieve the purpose, the utility model discloses the technical scheme who takes:

ferrous sulfate monohydrate apparatus for producing, with present structure is: the rotary kiln comprises a feeding machine, wherein a feeding hopper is arranged on the feeding machine, the feeding machine is connected with a throwing machine, the throwing machine is connected with a rotary kiln, the rotary kiln comprises a kiln body, a driving mechanism for rotating the kiln body is connected onto the kiln body, a feeding hopper is arranged at one end of the kiln body, a feeding pipe which obliquely penetrates through the feeding hopper and extends into the kiln body is arranged on the feeding hopper, the feeding pipe is connected with the throwing machine, a discharging hopper is arranged at the other end of the kiln body, the upper end of the discharging hopper is connected with a bag-type dust collector through an exhaust pipe, the bottom end of the discharging hopper is connected with a conveyor, the bag-type dust collector is connected with an exhaust chimney through a waste gas induced draft fan, the conveyor is connected with a crusher, and the crusher is connected with a finished product storage hopper through a hoister; the difference is that: the upper end of feeder hopper is equipped with the steam import, the steam import is connected with the air outlet of natural gas burner, the air exit and the exhaust chimney of natural gas burner are connected, be fixed with a horizontal scraper support that is located this internal kiln between feeder hopper and the play hopper, the scraper of scraping off the wall built-up material is established to the top of scraper support, the scraper includes vertical scraper blade and slope scraper blade, the side that vertical scraper blade and slope scraper blade are constituteed is three horn shapes, the tip of vertical scraper blade and slope scraper blade is all connected on the enhancement connecting plate that is three horn shapes, strengthen connecting plate and scraper support fixed connection, be equipped with a plurality of rings in the kiln body exit end and raise the material spare, every circle raises the material spare and evenly is equipped with a plurality of square form flitches along kiln body circumference, the raising board is all fixed on the inner wall of kiln body.

As an optimal technical scheme, in order to ensure that the materials are fully contacted with hot air at the front end and can be lifted to be further contacted and dried with the hot air, the utilization rate of heat is improved, the moisture of the product reaches the standard, the particle size of the particles is uniform, and the quality of the product is improved, 3 rings of material lifting pieces are arranged in 4-5 m of the outlet end of the kiln body.

Compared with the prior art, the utility model discloses beneficial effect who has:

1. aiming at the technical problems of the structure of the existing production device, the ferrous sulfate monohydrate production device is provided with a hot air inlet on a feed hopper of a rotary kiln, so that the structure of the existing jacketed rotary kiln is changed, materials and hot air enter the rotary kiln in the same direction, the materials and the hot air are directly contacted and heated, the materials are uniformly heated, and the utilization rate of heat and the drying efficiency are improved; the scraper which does not rotate along with the kiln body is arranged in the kiln body, so that materials adhered to the inside of the kiln body are scraped and then directly contacted with hot air for drying, the phenomenon of material wall hanging is effectively avoided, the shutdown treatment of the rotary kiln is not needed, the continuous feeding production is ensured, and the production efficiency is high; in addition, this internal material that still sets up the lifting blade and will tentatively dry of kiln is raised, again with hot-blast abundant contact drying, guarantees that the product level is up to standard, the particle diameter is even, product quality is high.

2. The width and the number of turns of raising the material piece set up scientific and reasonable, guarantee that the material fully contacts with hot-blast in the front end, ensure simultaneously that the material all can raise further with hot-blast contact drying, improve thermal rate of utilization, also ensure that product moisture is up to standard, the granule particle diameter is even, improve the quality of product.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

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

FIG. 2 is a schematic view of the rotary kiln;

FIG. 3 is a schematic view of the construction of the doctor blade;

FIG. 4 is a schematic side view of the material raising member;

FIG. 5 is a schematic structural diagram of a conventional ferrous sulfate monohydrate production apparatus;

FIG. 6 is a flow chart of the production process of the present production apparatus;

reference numbers: 1. the device comprises a feeder, 2 parts of a feeding hopper, 3 parts of a throwing machine, 4 parts of a rotary kiln, 4 parts of 1 part of a kiln body, 4 parts of 2 parts of a driving mechanism, 4 parts of 3 parts of a feeding hopper, 4 parts of a feeding pipe, 4 parts of 5 parts of a discharging hopper, 4 parts of 6 parts of a hot gas inlet, 4 parts of 7 parts of a scraper bracket, 4 parts of 8 parts of a scraper, 4 parts of 9 parts of a lifting plate, 4 parts of 10 parts of a heat insulation layer, 4 parts of 11 parts of a sealing fish scale, 5 parts of a bag-type dust collector, 6 parts of a conveyor, 7 parts of a waste gas induced draft fan, 8 parts of an exhaust chimney, 9 parts of a crusher, 10 parts of a lifter, 11 parts of a finished product storage hopper, 12 parts of a natural gas combustor.

Detailed Description

As shown in fig. 1, the utility model relates to a concrete embodiment, ferrous sulfate monohydrate apparatus for producing, the same with current structure is: comprises a feeder 1, a feeding hopper 2 is arranged on the feeder 1, the feeder 2 is connected with a thrower 3, the thrower 3 is connected with a rotary kiln 4, the rotary kiln 4 comprises a kiln body 4-1, the kiln body 4-1 is connected with a driving mechanism 4-2 for rotating the kiln body, one end of the kiln body 4-1 is provided with the feeding hopper 4-3, the feeding hopper 4-3 is provided with a feeding pipe 4-4 for obliquely penetrating the feeding hopper 4-3 and extending into the kiln body 4-1, in order to ensure that materials can smoothly enter the kiln body 4-1 under the action of free falling bodies and facilitate the installation of the feeding pipe 4-4, the feeding pipe 4-4 is horizontally inclined by 60 degrees and penetrates through the feeding hopper 4-3, the feeding pipe 4-4 and the horizontal plane form a 60 degree angle, the downward sliding force of a free falling body born by the material is the largest at the time, the feeding pipe 4-4 is connected with a thrower, the other end of the kiln body 4-1 is provided with a discharging hopper 4-5, the upper end of the discharging hopper 4-5 is connected with a bag-type dust remover 5 through an exhaust pipe, the bottom end of the discharging hopper 4-5 is connected with a conveyor 6, the bag-type dust remover 6 is connected with an exhaust chimney 8 through an exhaust draught fan 7, the exhaust gas generated by the rotary kiln is discharged through the exhaust chimney 8 under the action of the exhaust draught fan after being dedusted by the bag-type dust remover 5, the conveyor 6 is connected with a crusher 9, the crusher 9 is connected with a finished product storage hopper 11 through a lifter 10, and the product storage hopper 11 is connected with a packing machine; the difference is that: the upper end of the feed hopper 4-3 is provided with a hot air inlet 4-6, the hot air inlet 4-6 is connected with an air outlet of a natural gas burner 12, the temperature of hot air generated by the natural gas burner 12 is set to be 410-430 ℃ in the embodiment, an air outlet of the natural gas burner 12 is connected with an exhaust chimney 8, waste gas generated by the natural gas burner 12 is exhausted through the exhaust chimney 8, a scraper support 4-7 transversely positioned in the kiln body 4-1 is fixed between the feed hopper 4-3 and the discharge hopper 4-5, as shown in fig. 2, the scraper support 4-7 is transversely fixed in the kiln body 4-1 and cannot rotate along with the rotation of the kiln body 4-1, a cylindrical support rod of the scraper support 4-7 is arranged in the embodiment, a scraper 4-8 for scraping wall-hanging materials is arranged above the scraper support 4-7, the scrapers 4-8 comprise vertical scrapers and inclined scrapers, the side surfaces formed by the vertical scrapers and the inclined scrapers are triangular, as shown in fig. 3, the end parts of the vertical scrapers and the inclined scrapers are connected to triangular reinforcing connecting plates, the reinforcing connecting plates are fixedly connected with the scraper supports 4-7, considering that the scraper supports 4-7 are long in length and poor in stability, the structure of the scrapers 4-8 is set by adopting a triangular fixing principle, the scraper supports 4-7 and the scrapers 4-8 are both made of steel plate materials and are fixed by welding, the scrapers 4-8 can be firmly fixed on the scraper supports 4-7 with long length, and the scrapers 4-8 are effectively prevented from falling off the scraper supports 4-7, the normal work of the scraper 4-8 is ensured, a plurality of circles of lifting parts are arranged in the outlet end of the kiln body 4-1, a plurality of square lifting plates 4-9 are uniformly arranged on each circle of lifting parts along the circumference of the kiln body 4-1, the lifting plates 4-9 are all fixed on the inner wall of the kiln body 4-1, as shown in figure 4, in order to prevent the heat in the kiln body 4-1 from dissipating from the kiln wall, the inner wall of the kiln body 4-11 is provided with a heat insulation layer 4-10, in addition, in order to prevent the material from leaking from the two ends of the kiln body 4-1, sealing fish scales 4-11 are arranged between the kiln body 4-1 and the discharge hopper 4-5 and between the kiln body 4-1 and the feed hopper 4-3.

3 rings of material lifting pieces are arranged in 4-5 m of the outlet end of the kiln body 4-1, the material lifting pieces are 4-5 m long and 3 rings, so that the materials are fully contacted with hot air at the front end, the materials can be lifted and further contacted and dried with the hot air, the heat utilization rate is improved, the moisture of the product is up to standard, the particle size is uniform, and the product quality is improved.

The utility model discloses during the use: setting upper and lower limits of a feeding level, controlling the level within the upper and lower limits in a conveying process, setting the rotation frequency of the rotary kiln 4 to be 50 Hz, setting the temperature of hot gas of the natural gas combustor 12 to be 410-430 ℃, sampling and measuring the temperature at intervals of 5min, reducing the opening degree of a waste gas valve by 2% when the temperature of the hot gas is less than 410 ℃, increasing the opening degree of the waste gas valve by 2% when the temperature of the hot gas is higher than 430 ℃, starting the production device, feeding ferrous sulfate heptahydrate materials into a feeder 1 through a feeding hopper, feeding the ferrous sulfate heptahydrate materials into the rotary kiln 4 from a feeding pipe 4-4 through a thrower 3, introducing the hot gas into the rotary kiln through a hot gas inlet by the natural gas combustor 12, discharging tail gas generated by the natural gas combustor 12 through an exhaust chimney 8, setting the temperature of the tail gas combustor to be 185-195 ℃, sampling and measuring the temperature and adjusting the temperature every hour; the materials and hot gas entering the rotary kiln 4 simultaneously directly contact for heat exchange, synchronously rotate along with the rotary kiln 4 and are pushed to the discharge end from the feed end, heating and dehydration of ferrous sulfate heptahydrate are realized, the materials with larger moisture can be adhered to the inner wall of the rotary kiln 4, the adhered materials are contacted with the transversely fixed scrapers 4-8 along with the synchronous rotation of the rotary kiln 4, the adhered materials are scraped, the scraped materials and the hot gas directly contact for heat exchange, drying and dehydration, and when the discharge end is reached, the material primarily dried is overturned and lifted by the lifting blades 4-9, and then the materials are fully contacted with the hot gas for heat exchange, drying and dehydration to form a ferrous sulfate monohydrate product; the dried and dehydrated product enters a crusher 9 from a discharge hopper 4-5 of a rotary kiln 4 through a conveyor 6 to be crushed, the crushed product enters a finished product storage hopper 11 through a lifter 10 to be stored, and finally, the product is packaged by a packaging machine; tail gas generated in the drying process of the rotary kiln 4 enters the bag-type dust remover 5 from the upper end of the discharge hopper 4-5 for dust removal, and the clean tail gas after dust removal is discharged from the exhaust chimney 8 under the action of the exhaust gas induced draft fan 7, as shown in fig. 6; the tail gas temperature of the natural gas burner 12 is sampled and measured, when the tail gas temperature is lower than 185 ℃,the natural gas burner 12 is increased by 1m ³ The gas amount is reduced by 1m when the tail gas temperature is higher than 195 DEG C ³ The amount of gas is increased by 10m per 5 minutes of the natural gas burner 12 when the temperature of the tail gas is lowered to 175 DEG C ³ The gas amount is increased by 10m of the natural gas burner 12 when the tail gas temperature is less than 175 DEG C ³ The gas quantity is reduced by 10m when the tail gas temperature is higher than 185 ℃ and the tail gas is increased by 5 ℃ every time ³ Until the tail gas temperature of the natural gas burner 12 is 185-195 ℃.

Of course, the above detailed description is only made for the preferred embodiments of the present invention with reference to the accompanying drawings, and the scope of the present invention is not limited thereto, and all the equivalent changes made by the principle, structure and structure according to the present invention should be covered by the protection scope of the present invention.

Claims (2)

1. The ferrous sulfate monohydrate production device comprises a feeder (1), wherein a feeding hopper (2) is arranged on the feeder (1), the feeder (1) is connected with a thrower (3), the thrower (3) is connected with a rotary kiln (4), the rotary kiln (4) comprises a kiln body (4-1), the kiln body (4-1) is connected with a driving mechanism (4-2) for rotating the kiln body, one end of the kiln body (4-1) is provided with the feeding hopper (4-3), the feeding hopper (4-3) is provided with a feeding pipe (4-4) which obliquely penetrates through the feeding hopper and extends into the kiln body, the feeding pipe (4-4) is connected with the thrower (3), the other end of the kiln body (4-1) is provided with a discharging hopper (4-5), the upper end of the discharging hopper (4-5) is connected with a bag-type dust collector (5) through an exhaust pipe, the bottom end of the discharging hopper (4-5) is connected with a conveyor (6), the bag-type dust collector (5) is connected with an exhaust chimney (8) through a waste gas draught fan (7), the conveyor (6) is connected with a crusher (9), and the finished product is connected with a lifting machine (11); the method is characterized in that: the upper end of feeder hopper (4-3) is equipped with steam inlet (4-6), steam inlet (4-6) is connected with the air outlet of natural gas burner (12), the air exit and the exhaust chimney (8) of natural gas burner (12) are connected, be fixed with one between feeder hopper (4-3) and the play hopper (4-5) and transversely be located kiln body (4-1) scraper support (4-7), the top of scraper support (4-7) is equipped with scraper (4-8) of striking off the wall built-up material, scraper (4-8) include vertical scraper blade and slope scraper blade, the side that vertical scraper blade and slope scraper blade are constituteed is triangle-shaped, the tip of vertical scraper blade and slope scraper blade all is connected on the reinforcing connection board that is triangle-shaped, reinforcing connection board and scraper support (4-7) fixed connection, be equipped with a plurality of rings in kiln body (4-1) the exit end and raise the material spare, every circle material spare evenly is equipped with a plurality of blocks along kiln body (4-1) circumference and is the square flitch (4-9), the inner wall is all fixed on kiln body (4-1).

2. The ferrous sulfate monohydrate production plant according to claim 1, characterized in that: 3 rings of material raising pieces are arranged in the outlet end 4-5 m of the kiln body (4-1).

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