CN214192577U

CN214192577U - Material reaction system for phosphoric acid production

Info

Publication number: CN214192577U
Application number: CN202022264634.1U
Authority: CN
Inventors: 丁天鹏; 朱月; 郑春来; 邹爽; 席军利; 张元堂; 刘银旭; 徐国涛; 闫锋; 熊虎; 黎国华; 吴洋泽; 刘忠磊
Original assignee: Hubei Yihua Fertilizer Co ltd
Current assignee: Hubei Yihua Fertilizer Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-09-14
Anticipated expiration: 2030-10-13

Abstract

The utility model relates to a phosphoric acid production technical field especially relates to a material reaction system for phosphoric acid production. The utility model provides a material reaction system for phosphoric acid production, includes material crushing mechanism, material mixing mechanism and tail gas washing mechanism, material mixing mechanism includes first casing, (mixing) shaft, a plurality of stirring leaf, first drive unit and a plurality of scraper, first casing is the cylinder structure of vertical setting, and its inside cavity, and the lower extreme is equipped with a plurality of stabilizer blades, be equipped with on the first casing rather than first feed inlet, first discharge gate and the first gas outlet of inside intercommunication, material crushing mechanism's second discharge gate with the first feed inlet intercommunication of first casing, tail gas washing mechanism's third feed inlet with the first gas outlet intercommunication of first casing, material crushing mechanism is used for smashing the phosphorus ore, tail gas washing mechanism is used for collecting reaction tail gas.

Description

Material reaction system for phosphoric acid production

Technical Field

The utility model relates to a phosphoric acid production technical field especially relates to a material reaction system for phosphoric acid production.

Background

Phosphate ore and sulfuric acid are main reaction raw materials for producing phosphoric acid, but in the reaction process of the two materials, the phosphate ore is not fully crushed, so that the reaction rate of the materials is slowed down. And the materials can generate tail gas in the reaction process, and if the tail gas is not processed in time, the environment can be seriously influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a material reaction system for phosphoric acid production.

The utility model provides a material reaction system for phosphoric acid production, including material crushing mechanism, material mixing mechanism and tail gas washing mechanism, material mixing mechanism includes first casing, (mixing) shaft, a plurality of stirring leaf, first drive unit and a plurality of scraper, first casing is the cylinder structure of vertical setting, and its inside is hollow, and the lower extreme is equipped with a plurality of stabilizer blades, be equipped with the first feed inlet, first discharge gate and the first gas outlet that communicate with its inside on the first casing, the second discharge gate of material crushing mechanism and the first feed inlet of first casing communicate, the first air inlet of tail gas washing mechanism and the first gas outlet of first casing communicate, material crushing mechanism is used for smashing the phosphorus ore, tail gas washing mechanism is used for collecting the reaction tail gas, the (mixing) shaft coaxial setting is in the first casing, its upper end with the roof of first casing rotates to be connected, and its lower extreme extends to the diapire top of first casing is a plurality of the stirring leaf is all followed the radial setting of first casing, and follow respectively the even interval distribution of circumference of (mixing) shaft, its be close to the one end of (mixing) shaft all with (mixing) shaft fixed connection, it is a plurality of the equal vertical setting of scraper is in the first casing, and follow respectively the even interval distribution of circumference of first casing, its back of a knife blade pass through the linking arm with (mixing) shaft fixed connection, its knife face all with the lateral wall laminating of first casing, a drive unit sets up the upper end of first casing, its first drive end with the upper end of (mixing) shaft rotates to be connected, and it is used for the drive the (mixing) shaft drives the stirring leaf with the scraper rotates.

Further, rubbing crusher constructs including second casing and first crushing unit, the vertical setting of second casing is equipped with second feed inlet and second discharge gate rather than inside intercommunication on it, first crushing unit sets up in the second casing, it is used for carrying out shredding to the phosphorus ore, the second discharge gate with first feed inlet intercommunication.

Further, first crushing unit includes second drive unit, pivot and a plurality of cutter, the vertical setting of pivot is in the second casing, its upper end with the middle part of second casing roof is rotated and is connected, and its lower extreme downwardly extending is a plurality of the equal level setting of cutter is followed respectively the even interval distribution in circumference of pivot, its one end with pivot fixed connection, its other end extend to and are close to the inside wall of second casing, second drive unit sets up the upper end of second casing, its second drive end with the upper end transmission of pivot is connected, and can drive the pivot drives a plurality ofly the cutter rotates.

Further, still include the second and smash the unit, be equipped with two second stock guides in the casing, two the equal level setting of stock guide to control spaced distribution and be in the below of pivot, its one side that is close to each other has the unloading passageway, other three side respectively with the lateral wall fixed connection of the corresponding side of casing, the second is smashed the unit and is set up the below of unloading passageway, its feed end with unloading passageway intercommunication, it is used for grinding the phosphorite after smashing.

Furthermore, the second crushing unit comprises two grinding rollers, the two grinding rollers are arranged below the second material guide plates along the front-back direction, the front end and the rear end of each grinding roller extend to the side wall, corresponding to the second casing, of the corresponding side of the second casing to be rotatably connected, and the peripheries of the two grinding rollers extend to the lower ends, close to the corresponding second material guide plates.

Furthermore, a first material guide plate is arranged in the second machine shell, the first material guide plate is arranged obliquely downwards, the lower end of the first material guide plate is positioned below the second discharge port, and four side walls of the first material guide plate are fixedly connected with the side walls of the corresponding side of the second machine shell.

Further, washing mechanism includes third casing and washing pipe, be equipped with on the third casing rather than the first air inlet and the third discharge gate of inside intercommunication, first air inlet with first gas outlet intercommunication to be equipped with the aspiration pump on the communication path, the upper end of third casing is equipped with a plurality of third feed inlets, and every the equal vertical connecting pipe that is equipped with of feed inlet department, washing pipe is the loop configuration, and it sets up many the lower extreme of connecting pipe, and with the lower extreme intercommunication of connecting pipe, washing pipe is located the top of first air inlet, be equipped with a plurality of second through-holes on the washing pipe, and every all be equipped with the shower nozzle in the second through-hole, the nozzle of shower nozzle sets up down.

The utility model provides a beneficial effect that technical scheme brought is: a material reaction system for phosphoric acid production, it can realize fully smashing and grinding the phosphorus ore to reach the purpose that improves mixing efficiency and reaction efficiency. In addition, the tail gas can be fully absorbed, and the method has the advantages of good absorption effect, low implementation cost and the like.

Drawings

FIG. 1 is a schematic structural diagram of a material reaction system for phosphoric acid production according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the present invention provides a material reaction system for producing phosphoric acid, including a material crushing mechanism, a material mixing mechanism and a tail gas washing mechanism, wherein the material mixing mechanism includes a first housing 10, a stirring shaft 11, a plurality of stirring blades 12, a first driving unit 13 and a plurality of scrapers 14, the first housing 10 is a vertically arranged cylindrical structure, the interior of the first housing is hollow, the lower end of the first housing is provided with a plurality of support legs 15, the first housing 10 is provided with a first feed port 16, a first liquid inlet 17, a first discharge port 18 and a first gas outlet 19 which are communicated with the interior of the first housing, a second discharge port 22 of the material crushing mechanism is communicated with the first feed port 16 of the first housing 10, a third feed port 34 of the tail gas washing mechanism is communicated with the first gas outlet 19 of the first housing 10, the material crushing mechanism is used for crushing phosphate ores, the tail gas washing mechanism is used for collecting reaction tail gas, the stirring shaft 11 is coaxially arranged in the first machine shell 10, the upper end of the stirring shaft is rotatably connected with the top wall of the first machine shell 10, the lower end of the stirring shaft extends to the upper part of the bottom wall of the first machine shell 10, the stirring blades 12 are all arranged along the radial direction of the first machine shell 10 and are uniformly distributed at intervals along the circumferential direction of the stirring shaft 11 respectively, one end of the stirring shaft close to the stirring shaft 11 is fixedly connected with the stirring shaft 11, the scrapers 14 are all vertically arranged in the first machine shell 10 and are uniformly distributed at intervals along the circumferential direction of the first machine shell 10 respectively, the back of each scraper is fixedly connected with the stirring shaft 11 through a connecting arm, the knife face of each scraper is attached to the side wall of the first machine shell 10, the first driving unit 13 is arranged at the upper end of the first machine shell 10, and the first driving end of each scraper is rotatably connected with the upper end of the stirring shaft 11, the stirring shaft 11 is used for driving the stirring blade 12 and the scraper 14 to rotate.

In the above embodiment, the first inlet 16 and the first outlet 19 are both disposed at the upper portion of the first housing 10, the first inlet 17 is disposed in plurality and uniformly distributed at the top of the first housing 10, and the first outlet 18 is disposed at the bottom of the first housing 10 and provided with a first plug for closing or opening the first outlet. Wherein, first feed inlet 16 is used for the phosphate rock after the feeding is smashed, first inlet 17 is used for the feeding sulphuric acid, first discharge gate 18 is used for the phosphoric acid that obtains after the ejection of compact reaction, and first air inlet 32 is arranged in carrying the fluorine-containing tail gas that produces in the reaction to tail gas washing mechanism. And a plurality of first inlet 17 equipartitions are at the top of first casing 10, improve the area of contact of sulphuric acid and phosphorus ore powder, improve the mixing rate with phosphorus ore powder. First drive unit 13 is first motor, and when it started, drives a plurality of stirring leaves 12 and a plurality of scraper 14 and rotates, and wherein, the stirring is used for strengthening the mixing efficiency of material, and then reaches the purpose that improves material reaction rate, and scraper 14 then can prevent that the material from gluing on the inner wall of first casing 10, improves the utilization ratio of material, avoids causing the waste of material. Specifically, each of the stirring blades 12 and the scraper 14 is provided with 2.

In the above embodiment, the crushing mechanism includes the second housing 20 and the first crushing unit, the second housing 20 is vertically disposed and has the second feeding hole 21 and the second discharging hole 22 communicated with the inside thereof, the first crushing unit is disposed in the second housing 20 and is used for crushing the phosphate ore, and the second discharging hole 22 is communicated with the first feeding hole 16.

The utility model discloses in, in the phosphorus ore got into second casing 20 through second feed inlet 21, smash the back under the effect of first crushing unit, export from second feed inlet 21. The second inlet 21 is disposed at the top end of the second casing 20, and the second outlet 22 is disposed at the lower portion of the sidewall of the second casing 20. The utility model discloses do not prescribe a limit to the shape of second casing 20, it is specific, and it is the rectangle structure. In order to facilitate automatic discharging of the crushed phosphate ores, a first material guide plate 23 is arranged in the second casing 20, the first material guide plate 23 is arranged obliquely downwards, the lower end of the first material guide plate 23 is located below the second discharge hole 22, and four side walls of the first material guide plate are fixedly connected with side walls of the corresponding side of the second casing 20. The first material guiding plate 23 can automatically discharge the crushed phosphate ore to the second discharge hole 22, and input the phosphate ore into the first housing 10.

In the above embodiment, the first crushing unit includes a second driving unit 24, a rotating shaft 25 and a plurality of cutters 26, the rotating shaft 25 is vertically disposed in the second housing 20, an upper end of the rotating shaft 25 is rotatably connected to a middle portion of a top wall of the second housing 20, a lower end of the rotating shaft extends downward, the plurality of cutters 26 are all horizontally disposed and are respectively uniformly spaced along a circumferential direction of the rotating shaft 25, one end of the plurality of cutters 26 is fixedly connected to the rotating shaft 25, and the other end of the plurality of cutters 26 extends to a position close to an inner side wall of the second housing 20, the second driving unit 24 is disposed at an upper end of the second housing 20, a second driving end of the second driving unit is in transmission connection with an upper end of the rotating shaft 25, and the rotating shaft 25 can be driven to drive the plurality of cutters 26 to rotate.

The utility model discloses in, second drive unit 24 is the second motor, and when it started, can drive pivot 25 and drive cutter 26 and rotate to carry out shredding to the phosphorus ore. Specifically, the number of the cutters 26 is 4. The utility model discloses a first crushing unit has crushing effectual and implementation cost low grade advantage.

In the above embodiment, the grinding machine further includes a second grinding unit, two second material guiding plates 27 are arranged in the casing, the two material guiding plates are horizontally arranged and distributed below the rotating shaft 25 at intervals left and right, a discharging channel 28 is arranged on one side close to the rotating shaft, the other three side faces are fixedly connected with the side wall of the corresponding side of the casing, the second grinding unit is arranged below the discharging channel 28, and the feeding end of the second grinding unit is communicated with the discharging channel 28 and is used for grinding ground phosphate ores.

The utility model discloses in, have the unloading passageway 28 that can supply to smash back phosphorus ore to pass through between two second stock guides 27, the phosphorus ore after smashing drops to the feed end that the unit was smashed to the second in through unloading passageway 28, smashes the unit by the second and grinds phosphorus ore into likepowder thing. The utility model provides a second crushing unit can carry out secondary treatment to the phosphorus ore after smashing, improves the crushing effect to the phosphorus ore, and then reaches the purpose that improves material reaction rate.

In the above embodiment, the second crushing unit includes two grinding rollers 29, the two grinding rollers 29 are disposed below the two second material guiding plates 27 along the front-back direction, the front end and the back end of each grinding roller 29 extend to be rotatably connected with the corresponding side wall of the second casing 20, and the peripheries of the two grinding rollers 29 extend to be close to the lower ends of the corresponding second material guiding plates 27.

The utility model discloses in, grinding roller 29 is driven by drive arrangement and is rotated, and then realizes grinding the function, and this is prior art, no longer gives unnecessary details here. The feeding channel 28 feeds the material between the two grinding rollers 29, and after the two grinding rollers 29 grind and perform secondary grinding, the ground material falls onto the first material guide plate 23. The utility model provides a second crushing unit has crushing effectual and implementation cost low grade advantage.

In the above embodiment, the washing mechanism includes a third casing 30 and a washing pipe 31, the third casing 30 is provided with a first air inlet 32 and a third discharge outlet 33 which are communicated with the inside of the third casing 30, the first air inlet 32 is communicated with the first air outlet 19, and an air suction pump is arranged on the communication path, the upper end of the third casing 30 is provided with a plurality of third feed inlets 34, and each of the feed inlets is vertically provided with a connecting pipe 35, the washing pipe 31 is of an annular structure and is arranged at a plurality of lower ends of the connecting pipe 35 and communicated with the lower end of the connecting pipe 35, the washing pipe 31 is located above the first air inlet 32, the washing pipe 31 is provided with a plurality of second through holes, each of the second through holes is provided with a spray head 36, and a nozzle of the spray head 36 is arranged downwards.

The utility model discloses in, washing liquid passes through in connecting pipe 35 gets into washing pipe 31 to spray out by shower nozzle 36, washing pipe 31 is located first air inlet 32's top, and tail gas gets into third casing 30 back from first air inlet 32, is absorbed it by the washing liquid that sprays from its top, absorbs the bottom of third casing 30 in the washing liquid after the tail gas drops, and can follow third discharge gate 33 and locate the unloading to collect and recycle. In order to improve the absorption effect of the exhaust gas, the plurality of spray heads 36 are uniformly distributed along the circumferential direction of the washing pipe 31. Washing mechanism, can realize fully absorbing and recycle to tail gas, still have absorption efficiency fast and implementation cost low grade advantage.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A material reaction system for phosphoric acid production comprises a material crushing mechanism, a material mixing mechanism and a tail gas washing mechanism, and is characterized in that the material mixing mechanism comprises a first machine shell (10), a stirring shaft (11), a plurality of stirring blades (12), a first driving unit (13) and a plurality of scrapers (14), the first machine shell (10) is of a vertically arranged cylindrical structure, the interior of the first machine shell is hollow, a first feeding hole (16), a first liquid inlet (17), a first discharging hole (18) and a first gas outlet (19) which are communicated with the interior of the first machine shell (10) are arranged on the first machine shell (10), a second discharging hole (22) of the material crushing mechanism is communicated with the first feeding hole (16) of the first machine shell (10), a first gas inlet (32) of the tail gas washing mechanism is communicated with the first gas outlet (19) of the first machine shell (10), the material crushing mechanism is used for crushing phosphate ores, the tail gas washing mechanism is used for collecting reaction tail gas, the stirring shaft (11) is coaxially arranged in the first casing (10), the upper end of the stirring shaft is rotationally connected with the top wall of the first casing (10), the lower end of the stirring shaft extends to the upper part of the bottom wall of the first casing (10), the stirring blades (12) are arranged along the radial direction of the first casing (10) and are distributed along the circumferential uniform interval of the stirring shaft (11) respectively, one end of the stirring shaft, which is close to the stirring shaft (11), is fixedly connected with the stirring shaft (11), the scrapers (14) are vertically arranged in the first casing (10) and are distributed along the circumferential uniform interval of the first casing (10) respectively, the knife back of the scraper is fixedly connected with the stirring shaft (11) through a connecting arm, and the knife faces of the scraper are attached to the side wall of the first casing (10), the first driving unit (13) is arranged at the upper end of the first machine shell (10), a first driving end of the first driving unit is rotatably connected with the upper end of the stirring shaft (11), and the first driving unit is used for driving the stirring shaft (11) to drive the stirring blade (12) and the scraper (14) to rotate.

2. The material reaction system for producing phosphoric acid according to claim 1, wherein the crushing mechanism comprises a second casing (20) and a first crushing unit, the second casing (20) is vertically arranged and is provided with a second feeding hole (21) and a second discharging hole (22) communicated with the inside of the second casing, the first crushing unit is arranged in the second casing (20) and is used for crushing the phosphate ore, and the second discharging hole (22) is communicated with the first feeding hole (16).

3. The material reaction system for phosphoric acid production according to claim 2, the first crushing unit comprises a second driving unit (24), a rotating shaft (25) and a plurality of cutters (26), the rotating shaft (25) is vertically arranged in the second machine shell (20), the upper end of the cutter is rotationally connected with the middle part of the top wall of the second shell (20), the lower end of the cutter extends downwards, a plurality of cutters (26) are horizontally arranged and are uniformly distributed at intervals along the circumferential direction of the rotating shaft (25), one end of the first driving unit is fixedly connected with the rotating shaft (25), the other end of the first driving unit extends to the inner side wall close to the second machine shell (20), the second driving unit (24) is arranged at the upper end of the second machine shell (20), the second driving end of the cutter is in transmission connection with the upper end of the rotating shaft (25) and can drive the rotating shaft (25) to drive the plurality of cutters (26) to rotate.

4. The material reaction system for producing phosphoric acid according to claim 3, further comprising a second crushing unit, wherein two second material guiding plates (27) are arranged in the housing, the two material guiding plates are horizontally arranged and distributed below the rotating shaft (25) at intervals from left to right, a discharging channel (28) is arranged on one side close to each other, the other three sides are fixedly connected with the side wall of the corresponding side of the housing, respectively, the second crushing unit is arranged below the discharging channel (28), the feeding end of the second crushing unit is communicated with the discharging channel (28), and the second crushing unit is used for grinding crushed phosphate ore.

5. The material reaction system for producing phosphoric acid according to claim 4, wherein the second crushing unit comprises two grinding rollers (29), the two grinding rollers (29) are disposed under the two second material guide plates (27) along the front-back direction, the front end and the rear end of each grinding roller (29) extend to be rotatably connected with the corresponding side wall of the second housing (20), and the peripheries of the two grinding rollers (29) extend to be close to the lower ends of the corresponding second material guide plates (27).

6. The material reaction system for producing phosphoric acid according to claim 2, wherein a first material guiding plate (23) is disposed in the second casing (20), the first material guiding plate (23) is disposed obliquely downward, a lower end of the first material guiding plate is disposed below the second material outlet (22), and four side walls of the first material guiding plate are fixedly connected to corresponding side walls of the second casing (20).

7. The material reaction system for producing phosphoric acid according to claim 1, wherein the washing mechanism comprises a third housing (30) and a washing pipe (31), the third housing (30) is provided with a first air inlet (32) and a third discharge outlet (33) which are communicated with the inside of the third housing, the first air inlet (32) is communicated with the first air outlet (19), the communication path is provided with an air suction pump, the upper end of the third housing (30) is provided with a plurality of third feed inlets (34), each feed inlet is vertically provided with a connecting pipe (35), the washing pipe (31) is of an annular structure and is arranged at the lower ends of the plurality of connecting pipes (35) and communicated with the lower ends of the connecting pipes (35), the washing pipe (31) is positioned above the first air inlet (32), the washing pipe (31) is provided with a plurality of second through holes, and each second through hole is internally provided with a spray head (36), and a nozzle of the spray head (36) is arranged downwards.