WO2022143847A1

WO2022143847A1 - Device for preparing energy-saving material by combining dehydrated phosphogypsum and industrial slag, and use method

Info

Publication number: WO2022143847A1
Application number: PCT/CN2021/142763
Authority: WO
Inventors: 刘志浩
Original assignee: 湖北聚海环境科技有限公司
Priority date: 2020-12-31
Filing date: 2021-12-30
Publication date: 2022-07-07
Also published as: CN112844577A

Abstract

Disclosed in the present invention are a device for preparing an energy-saving material by combining dehydrated phosphogypsum and industrial slag, and a use method, comprising a crushing box, a first mixing hopper and a second mixing hopper. An insertion slot is provided in the top of the crushing box, and two first bearings are fixedly mounted on one side of an inner cavity of the crushing box. Crushing rollers are fixedly mounted on inner sides of both first bearings, and gears are fixedly mounted on the ends of the crushing rollers away from the first bearings. A protection box is fixedly mounted on one side of the crushing box; and a crushing motor is fixedly mounted on the inner side of the protection box. By means of mixing and crushing dehydrated phosphogypsum and industrial slag to prepare a novel energy-saving material, waste utilization of dehydrated phosphogypsum and industrial slag can be effectively performed, and preparation is convenient. Phosphogypsum can thus be effectively utilized, the utilization rate of phosphogypsum is improved, phosphogypsum surrounding a phosphating plant is effectively utilized, and thus the huge quantity of solid waste residues occupying land is reduced, encroachment on arable fields is reduced, and pollution of the surrounding environment is reduced.

Description

Equipment and use method for preparing energy-saving materials by combining dehydrated phosphogypsum with industrial slag

technical field

The invention belongs to the technical field of phosphogypsum treatment, and in particular relates to a device for preparing energy-saving materials by combining dehydrated phosphogypsum with industrial slag and a use method thereof.

Background technique

Dehydrated phosphogypsum is the product of dehydration of phosphogypsum. Phosphogypsum is a by-product of the production of phosphoric acid in a phosphate chemical plant. The main component is calcium sulfate dihydrate, which is acidic and contains impurities such as phosphoric acid and fluorine. The pH requirement of gypsum is generally greater than 4. Phosphogypsum usually contains acidic substances such as water-soluble P2O5 (0.3-3.0%) and water-soluble F- (0.1-0.7%). The pH value is mostly below 2.0. Generally, every 1t of phosphoric acid produced will produce 5t phosphogypsum, my country's annual emission of phosphogypsum is 60 million tons.

At present, the treatment of phosphogypsum includes aging, neutralization reaction of lime water and gypsum slurry, etc., but these treatment methods lead to extremely low utilization rate of phosphogypsum and extremely difficult utilization. In addition to a very small amount being used to produce building materials, a huge amount of solid waste occupies a large area of land. The harmful heavy metal chemicals such as arsenic, cadmium, and mercury contained in phosphogypsum have had an impact on the environment for hundreds of years, not only encroaching on fertile fields , and seriously pollute the environment.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a kind of equipment and use method for preparing energy-saving material with dehydrated phosphogypsum combined with industrial slag, so as to solve the problem that the existing phosphogypsum treatment method proposed in the above-mentioned background technology causes phosphogypsum due to the treatment method during the use process. The utilization rate of gypsum is extremely low and the utilization difficulty is extremely high, which leads to the problem that the accumulated phosphogypsum not only encroaches on fertile fields, but also seriously pollutes the environment.

In order to achieve the above purpose, the present invention provides the following technical solutions: a device for preparing energy-saving materials with dehydrated phosphogypsum combined with industrial slag, comprising a crushing box, a first mixing bucket and a second mixing bucket, and a slot is provided on the top of the crushing box , two first bearings are fixedly installed on one side of the inner cavity of the pulverizing box, and pulverizing rollers are fixedly installed on the inner sides of the two first bearings, and gears are fixedly installed at the end of the pulverizing rollers away from the first bearings, A protective box is fixedly installed on one side of the pulverizing box, a pulverizing motor is fixedly installed on the inner side of the protective box, a mounting plate is fixedly installed on the back of the pulverizing box, and the twin motors are fixedly installed on the inner side of the mounting plate, so the The bottom of the inner cavity of the crushing box is fixedly installed with a corner plate, the bottom of the crushing box is provided with two rectangular leak holes, the top of the first mixing hopper is connected with a first feeding pipe, and the first feeding pipe The end away from the first mixing hopper is connected with a first drying hopper, the top of the first drying hopper is connected with a first feeding hopper, the top of the first mixing hopper is connected with a second feeding pipe, and the second feeding hopper is connected with the top of the first drying hopper. The end of the feeding pipe away from the first mixing bucket is connected with a second drying bucket, the top of the second drying bucket is connected with a second feeding bucket, and the first drying bucket and the second drying bucket are opposite to each other. A support plate is fixedly installed on the side, a hot air blower is fixedly installed on the top of the support plate, and a connecting rod is fixedly installed on both sides of the top of the inner cavity of the second mixing bucket, and the connecting rod is away from the end of the inner wall of the second mixing bucket. A conical plate is fixedly installed, and a valve is fixedly installed on the outer side of the discharge port of the second mixing hopper.

Preferably, the first mixing hopper is fixedly installed on the top of the crushing box, and the discharge end of the first mixing hopper is inserted into the inside of the slot.

Preferably, the second mixing hopper is fixedly installed at the bottom of the pulverizing box, and the feeding end of the second mixing hopper communicates with two rectangular leak holes at the bottom of the pulverizing box.

Preferably, a first rotating shaft is fixedly connected to the top driving end of the twin motors, a first driving wheel is fixedly installed at one end of the first rotating shaft away from the twin motors, and a second rotating shaft is fixedly connected to the bottom driving end of the twin motors and a second driving wheel is fixedly installed at one end of the second rotating shaft away from the twin motors.

Preferably, a second bearing is fixedly installed inside the top wall of the first mixing bucket, a first stirring rod is fixedly installed on the inner side of the second bearing, and a first driven wheel is fixedly installed on the top of the first stirring rod , the first driven wheel is connected with the first driving wheel through a transmission belt, and a first stirring blade is fixedly installed on the outer side of the first stirring rod.

Preferably, a third bearing is fixedly installed on the bottom of the conical plate, a second driven wheel is fixedly installed on the inner side of the third bearing, and the second driven wheel is connected with the second driving wheel through a transmission belt, so A second stirring rod is fixedly installed on the bottom of the second driven wheel, a second stirring blade is fixedly installed on the outer side of the second stirring rod, and a fixing rod is fixedly installed on the outer side of the second stirring rod, and the fixing rod is far away from the One end of the second stirring rod is fixedly installed with a scraper, and one side of the second mixing bucket is provided with a rectangular groove.

Preferably, the air outlet of the hot air blower is communicated with the first drying bucket and the second drying bucket respectively through pipes.

Preferably, the driving end of the pulverizing motor is connected to one of the two gears, and the two gears are meshed, the top of the protective box is provided with an inspection port, and the top of the protective box is provided with an inspection door.

Preferably, four supporting legs are fixedly installed at the bottom of the crushing box, and the four supporting legs are symmetrically distributed in the four corners of the bottom of the crushing box in a rectangular shape.

The present invention also provides a method of using dehydrated phosphogypsum combined with industrial slag to prepare equipment for energy-saving materials as follows:

S1: First connect the external power supply to the equipment, and then turn on the hot air blower, the twin motor and the pulverizing motor in turn. The hot air blower enters the drying hot air into the first drying bucket and the second drying bucket through the pipeline. The top and bottom of the twin motors The driving end drives the first rotating shaft and the second rotating shaft to rotate, respectively, drives the first driving wheel and the second driving wheel to rotate, thereby driving the first driven wheel and the second driven wheel to rotate, and finally makes the first stirring rod and the second driving wheel rotate. The second stirring rod rotates, and after the crushing motor is started, the two crushing rollers will be driven to rotate through the gear.

S2: then add dehydrated phosphogypsum and industrial slag to the inside of the first drying hopper and the second drying hopper from the first feeding hopper and the second feeding hopper, respectively, and dry the dehydrated phosphogypsum after drying. and industrial slag enter the first mixing hopper from the first feeding pipe and the second feeding pipe respectively, and carry out mixing and stirring. The mixed material enters the interior of the crushing box through the discharge port of the first mixing hopper. Two pulverizing rollers are used for pulverizing, and the pulverized material first falls on the top of the corner plate, and then falls from the two rectangular leak holes inside the second mixing hopper for secondary mixing.

S3: Open the valve, and then discharge the mixed materials in the second mixing bucket.

Compared with the prior art, the beneficial effects of the present invention are:

1. By mixing and pulverizing dehydrated phosphogypsum and industrial slag to prepare new energy-saving materials, the dehydrated phosphogypsum and industrial slag can be effectively used for waste utilization, the preparation is convenient, the phosphogypsum can be effectively utilized, and the utilization rate of phosphogypsum can be improved. Effectively utilize the phosphogypsum around the phosphate chemical plant, reduce the land occupation of a huge amount of solid waste, reduce the occupation of fertile fields, and reduce the pollution to the surrounding environment.

2. By setting the first mixing hopper, the initial mixing can be performed before the raw materials are pulverized to improve the effect of pulverization. In addition, the second mixing hopper can be used for secondary mixing after the raw materials are pulverized, which can make the dehydrated phosphogypsum and industrial slag. Fully mixed to ensure the preparation quality of new energy-saving materials.

3. By setting the hot air blower, the first drying bucket and the second drying bucket, the added dehydrated phosphogypsum and industrial slag can be dried to ensure the dryness of the added dehydrated phosphogypsum and industrial slag, and to prevent the dehydrated phosphogypsum and industrial slag. The water contact reacts and produces harmful substances, thereby ensuring the preparation quality of new energy-saving materials.

Description of drawings

Fig. 1 is the rear view three-dimensional appearance structure schematic diagram of the present invention;

Fig. 2 is the front view three-dimensional appearance structure schematic diagram of the present invention;

3 is a schematic diagram of the internal structure of the crushing box of the present invention;

4 is a schematic diagram of the internal structure of the first mixing bucket of the present invention;

5 is a schematic diagram of the internal structure of the second mixing bucket of the present invention;

FIG. 6 is a schematic diagram of the three-dimensional appearance structure of the gusset of the present invention.

In the figure: 1. Crushing box; 2. First mixing bucket; 3. Second mixing bucket; 4. Twin motors; 5. Mounting plate; 6. Second rotating shaft; 7. Second driving wheel; 8. Rectangular groove; 9. Supporting legs; 10. Valves; 11. The first shaft; 12. The first driving wheel; 13. The first feeding pipe; 14. The first drying hopper; 15. The supporting plate; 16. The first feeding hopper ; 17, hot air blower; 18, the second feeding hopper; 19, the second drying hopper; 20, the second feeding pipe; 21, the inspection door; 22, the protection box; 23, the first driven wheel; 24, the first a stirring rod; 25, the second bearing; 26, the first stirring blade; 27, the crushing motor; 28, the gear; 29, the crushing roller; 30, the first bearing; 31, the angle plate; 32, the rectangular leak hole; 33, Access port; 34, slot; 35, fixed rod; 36, scraper; 37, second stirring rod; 38, second driven wheel; 39, third bearing; 40, connecting rod; 41, conical plate; 42 , the second stirring blade.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-6, the present invention provides a technical solution: a device for preparing energy-saving materials with dehydrated phosphogypsum combined with industrial slag, comprising a crushing box 1, a first mixing bucket 2 and a second mixing bucket 3. A slot 34 is opened on the top, two first bearings 30 are fixedly installed on one side of the inner cavity of the crushing box 1 , and crushing rollers 29 are fixedly installed on the inner sides of the two first bearings 30 , and the crushing rollers 29 are far away from the first bearing 30 . A gear 28 is fixedly installed at one end, a protection box 22 is fixedly installed on one side of the crushing box 1, a crushing motor 27 is fixedly installed on the inner side of the protection box 22, a mounting plate 5 is fixedly installed on the back of the crushing box 1, and the inner side of the mounting plate 5 is fixed The twin motors 4 are installed, the bottom of the inner cavity of the crushing box 1 is fixedly installed with a corner plate 31, the bottom of the crushing box 1 is provided with two rectangular leak holes 32, and the top of the first mixing hopper 2 is connected with the first feeding pipe 13, One end of the first feeding pipe 13 away from the first mixing hopper 2 is communicated with a first drying hopper 14 , the top of the first drying hopper 14 is communicated with a first feeding hopper 16 , and the top of the first mixing hopper 2 is communicated with a first feeding hopper 16 . Two unloading pipes 20, one end of the second unloading pipe 20 away from the first mixing hopper 2 is connected with the second drying hopper 19, and the top of the second drying hopper 19 is connected with the second feeding hopper 18, the first drying A support plate 15 is fixedly installed on the opposite side of the bucket 14 and the second drying bucket 19, a hot air blower 17 is fixedly installed on the top of the support plate 15, and connecting rods 40 are fixedly installed on both sides of the top of the inner cavity of the second mixing bucket 3. A conical plate 41 is fixedly installed at one end of the connecting rod 40 away from the inner wall of the second mixing bucket 3 , and a valve 10 is fixedly installed at the outer side of the discharge port of the second mixing bucket 3 .

In this embodiment, the equipment is first connected to an external power supply, and then the hot air blower 17, the twin motors 4 and the pulverizing motor 27 are turned on in sequence, wherein the hot air blower 17 enters the first drying bucket 14 and the second drying bucket 19 through pipes. With dry hot air, the top and bottom driving ends of the twin motors 4 drive the first rotating shaft 11 and the second rotating shaft 6 to rotate, respectively, and drive the first driving wheel 12 and the second driving wheel 7 to rotate, thereby driving the first driven wheel 23 and the second driving wheel 7 to rotate. The second driven wheel 38 rotates, and finally the first stirring rod 24 and the second stirring rod 37 are rotated. After the pulverizing motor 27 is started, the two pulverizing rollers 29 are driven to rotate through the gear 28, and then the dehydrated phosphogypsum and industrial slag are separated. The first feeding hopper 16 and the second feeding hopper 18 are respectively added to the interior of the first drying hopper 14 and the second drying hopper 19 for drying, and the dried dehydrated phosphogypsum and industrial slag are respectively removed from the first drying hopper 14 and the second drying hopper 19. The unloading pipe 13 and the second unloading pipe 20 enter into the interior of the first mixing hopper 2 for mixing and stirring. The mixed materials enter the interior of the crushing box 1 through the discharge port of the first mixing hopper 2, crushing rollers 29 for crushing, the crushed material first falls on the top of the corner plate 31, and then falls from the two rectangular leak holes 32 to the inside of the second mixing bucket 3 for secondary mixing, opening the valve 10, and then Discharge the material after the mixing in the second mixing bucket 3 is completed.

Specifically, the first mixing bucket 2 is fixedly installed on the top of the crushing box 1 , and the discharge end of the first mixing bucket 2 is inserted into the interior of the slot 34 .

In this embodiment, the material after being stirred and mixed by the first mixing hopper 2 will fall into the interior of the crushing box 1 , and the crushing box 1 can provide support for the first mixing hopper 2 .

Specifically, the second mixing hopper 3 is fixedly installed at the bottom of the pulverizing box 1 , and the feeding end of the second mixing hopper 3 communicates with the two rectangular leak holes 32 at the bottom of the pulverizing box 1 .

In this embodiment, the materials crushed by the crushing rollers 29 inside the crushing box 1 will fall inside the second mixing bucket 3 , and the crushing box 1 can provide a fixing function for the second mixing bucket 3 .

Specifically, the top driving end of the twin motor 4 is fixedly connected with the first rotating shaft 11 , the end of the first rotating shaft 11 away from the twin motor 4 is fixedly installed with the first driving wheel 12 , and the bottom driving end of the twin motor 4 is fixedly connected with the second rotating shaft 6. A second driving wheel 7 is fixedly installed at one end of the second rotating shaft 6 away from the twin motors 4 .

In this embodiment, the top driving end of the twin motor 4 can drive the first rotating shaft 11 to rotate, thereby driving the first driving wheel 12 to rotate, and the bottom driving end of the twin motor 4 can drive the second rotating shaft 6 to rotate, thereby driving the first driving wheel 12 to rotate. The two driving wheels 7 rotate.

Specifically, a second bearing 25 is fixedly mounted inside the top wall of the first mixing bucket 2 , a first stirring rod 24 is fixedly mounted on the inner side of the second bearing 25 , and a first driven wheel 23 is fixedly mounted on the top of the first stirring rod 24 , the first driven wheel 23 is connected with the first driving wheel 12 through a transmission belt, and a first stirring blade 26 is fixedly installed on the outer side of the first stirring rod 24 .

In this embodiment, the first driving wheel 12 can drive the first driven wheel 23 to rotate through the transmission belt, thereby driving the first stirring rod 24 to rotate, and stir and mix the contents of the first mixing bucket 2 .

Specifically, a third bearing 39 is fixedly mounted on the bottom of the conical plate 41, and a second driven wheel 38 is fixedly mounted on the inner side of the third bearing 39. The second driven wheel 38 is connected to the second driving wheel 7 through a transmission belt. A second stirring rod 37 is fixedly installed on the bottom of the second driven wheel 38 , a second stirring blade 42 is fixedly installed on the outer side of the second stirring rod 37 , and a fixing rod 35 is fixedly installed on the outer side of the second stirring rod 37 , and the fixing rod 35 is far away from the first stirring rod 37 . One end of the second stirring rod 37 is fixedly installed with a scraper 36 , and one side of the second mixing bucket 3 is provided with a rectangular groove 8 .

In this embodiment, the second driving wheel 7 can drive the second driven wheel 38 to rotate through the transmission belt, thereby driving the second stirring rod 37 to rotate, and stirring and mixing the contents of the second mixing bucket 3. 37 When stirring, the scraper 36 can be driven to clean the inner wall of the second mixing bucket 3 .

Specifically, the air outlet of the hot air blower 17 is communicated with the first drying bucket 14 and the second drying bucket 19 respectively through pipes.

In this embodiment, the hot air blower 17 can input drying hot air into the first drying bucket 14 and the second drying bucket 19 through pipes.

Specifically, the driving end of the pulverizing motor 27 is connected to one of the two gears 28, and the two gears 28 are meshed. The top of the protection box 22 is provided with an inspection port 33, and the top of the protection box 22 is installed with an inspection door 21. .

In this embodiment, the functions of the access door 21 and the access port 33 are to facilitate the maintenance of the equipment inside the protection box 22 .

Specifically, four supporting legs 9 are fixedly installed at the bottom of the crushing box 1 , and the four supporting legs 9 are symmetrically distributed in the four corners of the bottom of the crushing box 1 in a rectangular shape.

In this embodiment, the function of the support legs 9 is to support the whole device.

S1: first connect the external power supply to the equipment, and then turn on the hot air blower 17, the twin motor 4 and the pulverizing motor 27 in turn, wherein the hot air blower 17 inputs drying hot air into the first drying bucket 14 and the second drying bucket 19 through pipes, The top and bottom driving ends of the twin motors 4 drive the first rotating shaft 11 and the second rotating shaft 6 to rotate, respectively, and drive the first driving wheel 12 and the second driving wheel 7 to rotate, thereby driving the first driven wheel 23 and the second driven wheel 23 and the second driven wheel to rotate. The moving wheel 38 rotates, and finally the first stirring rod 24 and the second stirring rod 37 rotate. After the crushing motor 27 is started, the two crushing rollers 29 are driven to rotate through the gear 28 .

S2: then add dehydrated phosphogypsum and industrial slag from the first feeding hopper 16 and the second feeding hopper 18 to the inside of the first drying hopper 14 and the second drying hopper 19 respectively, and dry them. The dehydrated phosphogypsum and industrial slag enter the interior of the first mixing hopper 2 from the first feeding pipe 13 and the second feeding pipe 20 respectively for mixing and stirring, and the mixed materials pass through the discharge port of the first mixing hopper 2 Entering the interior of the crushing box 1, it is crushed by the two crushing rollers 29. The crushed material first falls on the top of the corner plate 31, and then falls into the second mixing bucket 3 from the two rectangular leak holes 32. Perform secondary mixing.

S3: Open the valve 10, and then discharge the mixed materials in the second mixing bucket 3.

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

Claims

A device for preparing energy-saving materials by combining dehydrated phosphogypsum with industrial slag, comprising a crushing box (1), a first mixing bucket (2) and a second mixing bucket (3), characterized in that: the top of the crushing box (1) A slot (34) is provided, two first bearings (30) are fixedly installed on one side of the inner cavity of the pulverizing box (1), and pulverizing rollers are fixedly installed on the inner side of the two first bearings (30). (29), a gear (28) is fixedly installed at one end of the crushing roller (29) away from the first bearing (30), and a protection box (22) is fixedly installed at one side of the crushing box (1). A crushing motor (27) is fixedly mounted on the inner side of the box (22), a mounting plate (5) is fixedly mounted on the back of the crushing box (1), and a twin motor (4) is fixedly mounted on the inner side of the mounting plate (5). , a corner plate (31) is fixedly installed at the bottom of the inner cavity of the crushing box (1), two rectangular leak holes (32) are opened at the bottom of the crushing box (1), and the first mixing hopper (2) A first feeding pipe (13) is communicated with the top of the first feeding pipe (13), and the end of the first feeding pipe (13) away from the first mixing hopper (2) is communicated with a first drying hopper (14), and the first drying hopper ( 14) a first feeding hopper (16) is communicated with the top of the first mixing hopper (2), a second feeding pipe (20) is communicated with the top of the first mixing hopper (2), and the second feeding pipe (20) is far away from the first feeding pipe (20). One end of the mixing hopper (2) is communicated with a second drying hopper (19), the top of the second drying hopper (19) is communicated with a second feeding hopper (18), and the first drying hopper (14) ) and the opposite side of the second drying bucket (19) are fixedly installed with a support plate (15), the top of the support plate (15) is fixedly installed with a hot air blower (17), and inside the second mixing bucket (3) Connecting rods (40) are fixedly installed on both sides of the top of the cavity, and a conical plate (41) is fixedly installed at one end of the connecting rod (40) away from the inner wall of the second mixing bucket (3). 3) A valve (10) is fixedly installed on the outside of the discharge port.
A device for preparing energy-saving materials by combining dehydrated phosphogypsum and industrial slag according to claim 1, wherein the first mixing bucket (2) is fixedly installed on the top of the crushing box (1), and the first mixing bucket (2) is fixedly installed on the top of the crushing box (1). The discharge end of the bucket (2) is inserted into the inside of the slot (34).
A device for preparing energy-saving materials by combining dehydrated phosphogypsum with industrial slag according to claim 1, wherein the second mixing bucket (3) is fixedly installed at the bottom of the crushing box (1), and the second mixing hopper (3) is fixedly installed at the bottom of the crushing box (1). The feeding end of the hopper (3) communicates with the two rectangular leak holes (32) at the bottom of the crushing box (1).
A device for preparing energy-saving materials with dehydrated phosphogypsum combined with industrial slag according to claim 1, characterized in that: a first rotating shaft (11) is fixedly connected to the top driving end of the twin motor (4), and the first A first driving wheel (12) is fixedly installed at one end of the rotating shaft (11) away from the twin motors (4), and a second rotating shaft (6) is fixedly connected to the bottom driving end of the twin motors (4). 6) A second driving wheel (7) is fixedly installed at one end away from the twin motors (4).
A device for preparing energy-saving materials with dehydrated phosphogypsum combined with industrial slag according to claim 4, characterized in that: a second bearing (25) is fixedly installed inside the top wall of the first mixing bucket (2), and the A first stirring rod (24) is fixedly mounted on the inner side of the second bearing (25), a first driven wheel (23) is fixedly mounted on the top of the first stirring rod (24), and the first driven wheel (23) Connected with the first driving wheel (12) through a transmission belt, and a first stirring blade (26) is fixedly installed on the outer side of the first stirring rod (24).
A device for preparing energy-saving materials by combining dehydrated phosphogypsum with industrial slag according to claim 4, characterized in that a third bearing (39) is fixedly installed at the bottom of the conical plate (41), and the third bearing A second driven wheel (38) is fixedly installed on the inner side of (39), the second driven wheel (38) is connected with the second driving wheel (7) through a transmission belt, and the bottom of the second driven wheel (38) A second stirring rod (37) is fixedly installed, a second stirring blade (42) is fixedly installed on the outside of the second stirring rod (37), and a fixing rod (42) is fixedly installed on the outside of the second stirring rod (37). 35), a scraper (36) is fixedly installed at one end of the fixing rod (35) away from the second stirring rod (37), and a rectangular groove (8) is opened on one side of the second mixing bucket (3).
A device for preparing energy-saving materials by combining dehydrated phosphogypsum with industrial slag according to claim 1, characterized in that: the air outlet of the hot air blower (17) is connected to the first drying bucket (14) and the second drying bucket (14) and the second drying bucket respectively through pipes. The drying bucket (19) is connected.
A device for preparing energy-saving materials by combining dehydrated phosphogypsum with industrial slag according to claim 1, wherein the driving end of the pulverizing motor (27) is connected to one of the two gears (28), and The two gears (28) are engaged with each other, an inspection port (33) is opened on the top of the protection box (22), and an inspection door (21) is installed on the top of the protection box (22).
A device for preparing energy-saving materials by combining dehydrated phosphogypsum with industrial slag according to claim 1, characterized in that: the bottom of the crushing box (1) is fixedly installed with four supporting legs (9), and the four supporting legs (9) are The legs (9) are symmetrically distributed in the four corners of the bottom of the crushing box (1).
A method for using the equipment for dehydrating phosphogypsum combined with industrial slag to prepare energy-saving materials according to any one of claims 1-9 is as follows:

S1: First connect the external power supply to the equipment, then turn on the hot air blower (17), the twin motors (4) and the pulverizing motor (27) in turn, wherein the hot air blower (17) sends the first drying bucket (14) and the second drying bucket (14) to the second drying bucket (14) through the pipeline. Drying hot air is input into the drying bucket (19), and the top and bottom driving ends of the twin motors (4) drive the first rotating shaft (11) and the second rotating shaft (6) to rotate respectively, and drive the first driving wheel (12) Rotate with the second driving wheel (7), thereby driving the first driven wheel (23) and the second driven wheel (38) to rotate, and finally make the first stirring rod (24) and the second stirring rod (37) rotate , the crushing motor (27) will drive the two crushing rollers (29) to rotate through the gear (28) after starting;

S2: then add dehydrated phosphogypsum and industrial slag from the first feeding hopper (16) and the second feeding hopper (18) to the inside of the first drying hopper (14) and the second drying hopper (19), respectively , drying, and the dehydrated phosphogypsum and industrial slag after drying enter the first mixing hopper (2) from the first feeding pipe (13) and the second feeding pipe (20) respectively, and carry out mixing and stirring, The mixed material enters the inside of the crushing box (1) through the discharge port of the first mixing bucket (2), and is crushed by two crushing rollers (29). The crushed material first falls on the corner plate (31) The top of the second mixing hopper (3) is then dropped from the two rectangular leak holes (32) for secondary mixing;

S3: Open the valve (10), and then discharge the mixed materials in the second mixing bucket (3).