Environment-friendly building material production equipment based on phosphogypsum solid waste

Abstract

The invention discloses ardealite solid waste-based environment-friendly building material production equipment, which is provided with an earlier stage treatment mechanism, a cooling mechanism and a mixing and stirring mechanism, and is characterized in that the earlier stage treatment mechanism is used for treating solid waste ardealite to generate ardealite powder; the cooling mechanism comprises a cooling box body and a cooling fan assembly, a feeding port and a discharging port which are in butt joint with the earlier stage processing mechanism are formed in the cooling box body, and a pipeline with the two ends communicating with the feeding port and the discharging port is formed in the cooling box body; the cooling fan assembly is used for blowing ardealite powder in the pipeline to the discharging port, and the mixing and stirring mechanism is in butt joint with the discharging port and used for mixing and stirring the ardealite powder and other materials; and during cooling, the ardealite powder is stirred by a fan, so that on one hand, the ardealite powder is cooled, and on the other hand, the evaporation of water vapor is accelerated, and the ardealite powder is prevented from caking.

Description

Technical Field

[0001] The invention relates to the technical field of recycling phosphogypsum solid waste, and in particular to environmentally friendly building material production equipment based on phosphogypsum solid waste. Background Art

[0002] Phosphogypsum is an industrial byproduct of phosphoric acid produced by wet process in phosphorus chemical enterprises. Its main component is CaSO4·2H2O, which is the largest solid waste discharged by phosphorus chemical enterprises. According to incomplete statistics, about 5 tons of phosphogypsum waste will be directly generated for every ton of phosphoric acid produced in my country. At present, the disposal of a large amount of phosphogypsum waste has caused serious ecological harm, so the resource utilization and disposal of this phosphogypsum is imminent.

[0003] Patent CN113021636A provides a production device for preparing environmentally friendly building materials using solid waste of phosphogypsum, the device body includes a mixing box, one end of the mixing box is connected to a stirring box, the top of the stirring box is provided with a first feed inlet, and the top of the first feed inlet is movably installed with a feed inlet cover. The present invention is provided with a first motor, a protective cover, a belt, a first transmission shaft, a stirring blade and a fixed plate, the first motor is started to rotate, the first transmission shaft is driven to rotate by the belt, and the first transmission shaft drives the stirring blade to rotate, so that the phosphogypsum can be fully stirred and fused during processing, so that the phosphogypsum can be fully fused with other catalyst materials, thereby becoming a new type of green, environmentally friendly and energy-saving building material.

[0004] However, the above-mentioned prior art has the following problems: it uses a cooling method similar to that of a refrigerator to cool the crushed phosphogypsum powder, and during the temperature reduction process, the accumulated phosphogypsum powder may re-agglomerate under the action of water vapor. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies, propose an environmentally friendly building material production equipment based on phosphogypsum solid waste, and solve the problem of agglomeration of phosphogypsum powder during cooling in the prior art.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides an environmentally friendly building material production equipment based on phosphogypsum solid waste, comprising: A pre-processing mechanism for processing solid waste phosphogypsum and generating phosphogypsum powder; The cooling mechanism comprises a cooling box and a cooling fan assembly, wherein the cooling box is provided with a feed port and a discharge port connected to the pre-processing mechanism, a pipe with two ends connected to the feed port and the discharge port is formed in the cooling box, and the cooling fan assembly is used to blow the phosphogypsum powder in the pipe toward the discharge port, and The mixing and stirring mechanism is connected to the discharge port and is used to mix and stir the phosphogypsum powder with other materials.

[0007] In some embodiments, the preliminary processing mechanism includes a crushing component and a calcining component, the calcining component is connected to the crushing component, the crushing component is used to crush the phosphogypsum solid waste, and the calcining component is used to calcine the crushed phosphogypsum solid waste to form the phosphogypsum powder, and the discharge end of the calcining component is connected to the feed port.

[0008] In some embodiments, the crushing assembly includes a crushing box, the crushing box is fixed on the top of the calcining assembly, a solid waste inlet is provided at the top of the crushing box, a crushing wheel is movably installed inside the crushing box, the crushing wheels are twisted with each other, a guide plate is fixedly installed inside the crushing box, the guide plate is located below the crushing wheel, a plurality of the guide plates are staggered, and a powder outlet is provided at the bottom of the crushing box for docking with the calcining assembly.

[0009] In some embodiments, the calcination assembly includes a calcination box, a stirring motor, a stirring shaft, stirring blades, a first heating element and a second heating element. The calcination box is fixed to the lower part of the crushing box, and a powder inlet connected to the crushing box is opened on the top of the calcination box. The stirring motor is fixed on the outer surface of the calcination box, and the power output end of the stirring motor extends into the interior of the calcination box and is fixed to one end of the stirring shaft. The stirring blades are staggered and fixed on the stirring shaft. The first heating element is fixed on the inner wall of the calcination box, and the second heating element is fixed on the stirring blades.

[0010] In some embodiments, the cooling box body includes a cooling inlet on one side, a light material outlet and a heavy material outlet on the other side, and a feed channel along the feeding direction. The cooling box is provided with a light material rising channel, a light material discharge channel, and a heavy material discharge channel arranged in a vertical direction. The bottom end of the light material rising channel is connected to the feed channel, and the light material discharge channel is inclined, with the higher end connected to the top of the light material rising channel and the lower end connected to the light material outlet. One end of the heavy material discharge channel is connected to the feed channel, and the other end is connected to the heavy material outlet.

[0011] In some embodiments, the cooling fan assembly includes a first fan and a second fan. The first fan is fixed at the connection point between the light material rising channel and the feed channel, and is used to generate wind force toward the light material rising channel. The second fan is fixed at the connection point between the light material rising channel and the light material discharge channel, and is used to generate wind force toward the light material discharge channel.

[0012] In some embodiments, the cooling mechanism also includes a transport component, which is arranged in the feed channel, one end of the transport component is connected to the cooling inlet, and the other end is connected to the heavy material discharge channel, and the transport component transports from the cooling inlet to the heavy material discharge channel.

[0013] In some embodiments, the transport assembly includes a driving motor, a rotating drum and a stainless steel mesh belt, the stainless steel mesh belt is sleeved on the rotating drum, the rotating drum is coaxially fixed with the driving motor, the driving motor drives the rotating drum to rotate, and the first fan is placed below the stainless steel mesh belt and corresponds to the entrance of the light material rising channel.

[0014] In some embodiments, a secondary crushing and transfer pipeline is provided, one end of which is connected to the heavy material outlet and the other end of which is connected to the solid waste inlet, for recycling and transporting the heavy material to the crushing assembly for secondary crushing.

[0015] In some embodiments, the mixing and stirring mechanism includes a stirring box, a mixing motor, a stirring rod and a plurality of stirring blades. The stirring box is vertically arranged, and a first feed port and a second feed port are opened on the top of the stirring box. The first feed port is connected to the light material outlet, and the second feed port is used for other materials to enter the stirring box. The mixing motor is fixed on the stirring box, and its rotating end extends into the interior of the stirring box. One end of the stirring rod is coaxially fixed with the rotating end of the mixing motor, and the stirring blades are staggered and fixed on the stirring rod.

[0016] Compared with the prior art, the environmentally friendly building material production equipment based on phosphogypsum solid waste provided by the present invention is provided with a preliminary treatment mechanism, a cooling mechanism and a mixing and stirring mechanism. The preliminary treatment mechanism is used to treat the solid waste phosphogypsum and generate phosphogypsum powder; the cooling mechanism includes a cooling box and a cooling fan assembly. The cooling box is provided with a feed port and a discharge port connected to the preliminary treatment mechanism. A pipeline with two ends connected to the feed port and the discharge port is formed in the cooling box. The cooling fan assembly is used to blow the phosphogypsum powder in the pipeline toward the discharge port. The mixing and stirring mechanism is connected to the discharge port and is used to mix and stir the phosphogypsum powder with other materials. During cooling, the fan is agitated to cool the phosphogypsum powder on the one hand and accelerate the evaporation of water vapor on the other hand to avoid agglomeration of the phosphogypsum powder.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail as follows with reference to the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an environmentally friendly building material production device based on phosphogypsum solid waste provided by the present invention; Description of reference numerals: 1-preliminary treatment mechanism, 11-crushing assembly, 111-crushing box, 111a-solid waste inlet, 112-crushing wheel, 113-guide plate, 12-calcining assembly, 121-calcining box, 122-stirring motor, 123-stirring shaft, 124-stirring blade, 2-cooling mechanism, 21-box, 211-feeding port, 212-discharging port, 213-feeding channel, 214-light material rising channel, 215-light material discharge channel, 216-heavy material discharge channel, 22-cooling fan assembly, 221-first fan, 222-second fan, 23-transportation assembly, 3-mixing and stirring mechanism, 31-stirring box, 32-mixing motor, 33-stirring rod, 34-stirring blade. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] See also Figure 1 , Figure 1 This is a schematic structural diagram of an environmentally friendly building material production device based on phosphogypsum solid waste in one embodiment of the present invention.

[0021] The present invention provides an environmentally friendly building material production equipment based on phosphogypsum solid waste, comprising: a preliminary treatment mechanism 1, a cooling mechanism 2 and a mixing and stirring mechanism 3, wherein the preliminary treatment mechanism 1 is used to treat the solid waste phosphogypsum and generate phosphogypsum powder; the cooling mechanism 2 comprises a cooling box 21 and a cooling fan assembly 22, the cooling box 21 is provided with a feed port 211 and a discharge port 212 connected to the preliminary treatment mechanism 1, a pipe 213 whose two ends are connected to the feed port 211 and the discharge port 212 is formed in the cooling box 21, the cooling fan assembly 22 is used to blow the phosphogypsum powder in the pipe 213 toward the discharge port 212, and the mixing and stirring mechanism 3 is connected to the discharge port 212 to mix and stir the phosphogypsum powder with other materials.

[0022] In the present invention, a preliminary treatment mechanism 1, a cooling mechanism 2 and a mixing and stirring mechanism 3 are provided. The preliminary treatment mechanism 1 is used to treat solid waste phosphogypsum and generate phosphogypsum powder; the cooling mechanism 2 includes a cooling box 21 and a cooling fan assembly 22. The cooling box 21 is provided with a feed port 211 and a discharge port 212 connected to the preliminary treatment mechanism 1. A pipe 213 is formed in the cooling box 21 with both ends connected to the feed port 211 and the discharge port 212. The cooling fan assembly 22 is used to blow the phosphogypsum powder in the pipe 213 toward the discharge port 212. The mixing and stirring mechanism 3 is connected to the discharge port 212 to mix and stir the phosphogypsum powder with other materials. During cooling, the fan is used to cool the phosphogypsum powder on the one hand, and on the other hand, the evaporation of water vapor is accelerated to avoid agglomeration of the phosphogypsum powder.

[0023] Specifically, the preliminary processing mechanism 1 includes a crushing component 11 and a calcining component 12. The calcining component 12 is connected to the crushing component 11. The crushing component 11 is used to crush the phosphogypsum solid waste, and the calcining component 12 is used to calcine the crushed phosphogypsum solid waste to form the phosphogypsum powder.

[0024] Furthermore, the crushing assembly 11 includes a crushing box 111, which is fixed on the top of the calcining assembly 12. A solid waste inlet 111a is provided at the top of the crushing box 111. A crushing wheel 112 is movably installed inside the crushing box 111. There are two crushing wheels 112, and the two crushing wheels 112 are intertwined with each other. A guide plate 113 is fixedly installed inside the crushing box 111. The guide plate 113 is located below the crushing wheel 112. There are at least two guide plates 113, and a plurality of guide plates 113 are staggered. The crushing assembly 11 uses the crushing wheel 112 to crush the phosphogypsum solid waste into powder, which is convenient for fusion processing. At the same time, the guide plate 113 guides the flow, reduces the impact force of the falling material, and makes it slowly fall into the calcining assembly 12, which protects the components in the calcining assembly 12 and improves the practicality of the device.

[0025] Furthermore, the calcination assembly 12 includes a calcination box 121, a stirring motor 122, a stirring shaft 123, a stirring blade 124, a first heating element 125 and a second heating element 126. The calcination box 121 is fixed to the lower part of the crushing box 111. A powder inlet 121a is provided on the top of the calcination box 121. The stirring motor 122 is fixed on the outer surface of the calcination box 121. The power output end of the stirring motor 122 extends into the calcination box 121 and is fixed to one end of the stirring shaft 123. The stirring blade 124 is staggered and fixed on the stirring shaft 123. The first heating element 125 is fixed on the inner wall of the calcination box 121. The second heating element 126 is fixed on the stirring blade 124. The first heating element 125 and the second heating element 126 are used to heat and calcine the phosphogypsum powder in the calcination box 121. The stirring motor 122 drives the stirring shaft 123 and the stirring blade 124 to rotate, thereby heating and calcining the phosphogypsum powder.

[0026] Specifically, the cooling box 21 includes a cooling inlet on one side, a light material outlet and a heavy material outlet on the other side, and a feed channel 213 along the feed direction. A light material rising channel 214, a light material discharge channel 215, and a heavy material discharge channel 216 arranged in the vertical direction are provided in the cooling box 21. The bottom end of the light material rising channel 214 is connected to the feed channel 213, and the light material discharge channel 215 is inclined, with the higher end connected to the top of the light material rising channel 214 and the lower end connected to the light material outlet. One end of the heavy material discharge channel 216 is connected to the feed channel 213, and the other end is connected to the heavy material outlet. The cooling fan assembly 22 includes a first fan 221 and a second fan 222. The first fan 221 is fixed at the connection between the light material rising channel 214 and the feed channel 213, and is used to generate wind force to the light material rising channel 214. The second fan 222 is fixed at the connection between the light material rising channel 214 and the light material discharge channel 215, and is used to generate wind force to the light material discharge channel 215. When the phosphogypsum powder enters the cooling box 21, it first passes through the feed channel 213 to the first fan 221. The first fan 221 blows the material (light material) that can be blown up to the light material ascending channel 214, and rises along the light material ascending channel 214 to the second fan 222. The second fan 222 blows the light material to the light material discharge channel 215, and discharges it through the light material outlet; while the material (heavy material) that is not blown up by the first fan 221 moves along the feed channel 213 and is discharged from the heavy material outlet. The purpose of setting the first fan 221 and the second fan 222 is: 1. Use the first fan 221 to transport the phosphogypsum powder; 2. Use the air cooling mode to cool the phosphogypsum to avoid water absorption during the cooling process; 3. Use the fan to achieve the purpose of air selection, select larger phosphogypsum particles and crush them again to ensure the subsequent material mixing effect.

[0027] Furthermore, the cooling mechanism 2 also includes a transport component 23, which is arranged in the feed channel 213, one end of the transport component 23 is connected to the cooling inlet, and the other end is connected to the heavy material discharge channel 216, and the transport component 23 transports from the cooling inlet to the heavy material discharge channel 216.

[0028] Furthermore, the transport component 23 includes a driving motor, a rotating drum and a stainless steel mesh belt, the stainless steel mesh belt is sleeved on the rotating drum, the rotating drum is coaxially fixed with the driving motor, the driving motor drives the rotating drum to rotate, and then drives the stainless steel mesh belt to make a rotational motion, the first fan 221 is placed under the stainless steel mesh belt and corresponds to the entrance of the light material rising channel 214, blowing air into the light material rising channel 214.

[0029] Furthermore, the present invention also includes a secondary crushing and transfer pipeline, one end of which is connected to the heavy material outlet and the other end is connected to the solid waste inlet 111a, and is used to recycle and transport the heavy material to the crushing assembly 11 for secondary crushing, so that it can be fully crushed to form light material that can be blown up by the first fan 221.

[0030] Specifically, the mixing and stirring mechanism 3 includes a mixing box 31, a mixing motor 32, a mixing rod 33 and a plurality of mixing blades 34. The mixing box 31 is vertically arranged, and a first feed port 311 and a second feed port 312 are provided on the top of the mixing box 31. The first feed port 311 is connected to the light material outlet, and the second feed port 312 is used for other materials to enter the mixing box 31. The mixing motor 32 is fixed on the mixing box 31, and its rotating end extends into the mixing box 31. One end of the mixing rod 33 is coaxially fixed with the rotating end of the mixing motor 32, and the mixing blades 34 are staggeredly fixed on the mixing rod 33. The mixing motor 32 drives the mixing rod 33 to rotate, so that the mixing blades 34 stir the phosphogypsum powder and other raw materials to mix.

[0031] Beneficial effects of the present invention: In the present invention, a preliminary treatment mechanism, a cooling mechanism and a mixing and stirring mechanism are provided, the preliminary treatment mechanism is used to treat the solid waste phosphogypsum and generate phosphogypsum powder; the cooling mechanism includes a cooling box and a cooling fan assembly, the cooling box is provided with a feed port and a discharge port connected to the preliminary treatment mechanism, a pipe with two ends connected to the feed port and the discharge port is formed in the cooling box, the cooling fan assembly is used to blow the phosphogypsum powder in the pipe toward the discharge port, the mixing and stirring mechanism is connected to the discharge port, and is used to mix and stir the phosphogypsum powder with other materials; during cooling, the fan is agitated to cool the phosphogypsum powder on the one hand, and on the other hand, to accelerate the evaporation of water vapor to avoid agglomeration of the phosphogypsum powder.

[0032] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An environmentally friendly building material production equipment based on phosphogypsum solid waste, characterized in that: It includes: A pre-processing mechanism for processing solid waste phosphogypsum and generating phosphogypsum powder; The cooling mechanism comprises a cooling box and a cooling fan assembly, wherein the cooling box is provided with a feed port and a discharge port connected to the pre-processing mechanism, a pipeline with two ends connected to the feed port and the discharge port is formed in the cooling box, and the cooling fan assembly is used to blow the phosphogypsum powder in the pipeline toward the discharge port; as well as The mixing and stirring mechanism is connected to the discharge port and is used to mix and stir the phosphogypsum powder with other materials.

2. The environmentally friendly building material production equipment based on phosphogypsum solid waste according to claim 1 is characterized in that: The preliminary processing mechanism includes a crushing component and a calcining component. The calcining component is connected to the crushing component. The crushing component is used to crush the phosphogypsum solid waste. The calcining component is used to calcine the crushed phosphogypsum solid waste to form the phosphogypsum powder. The discharge end of the calcining component is connected to the feed port.

3. The environmentally friendly building material production equipment based on phosphogypsum solid waste according to claim 2 is characterized in that: The crushing assembly includes a crushing box, which is fixed on the top of the calcining assembly. A solid waste inlet is provided at the top of the crushing box. A crushing wheel is movably installed inside the crushing box. The crushing wheels are twisted with each other. A guide plate is fixedly installed inside the crushing box. The guide plate is located below the crushing wheel. Multiple guide plates are staggered. A powder outlet is provided at the bottom of the crushing box to connect with the calcining assembly.

4. The environmentally friendly building material production equipment based on phosphogypsum solid waste according to claim 3 is characterized in that: The calcining assembly includes a calcining box, a stirring motor, a stirring shaft, stirring blades, a first heating element and a second heating element. The calcining box is fixed to the lower part of the crushing box. The top of the calcining box is provided with a powder inlet connected to the crushing box. The stirring motor is fixed to the outer surface of the calcining box. The power output end of the stirring motor extends into the interior of the calcining box and is fixed to one end of the stirring shaft. The stirring blades are staggered and fixed on the stirring shaft. The first heating element is fixed to the inner wall of the calcining box, and the second heating element is fixed to the stirring blades.

5. The environmentally friendly building material production equipment based on phosphogypsum solid waste according to claim 4, characterized in that: A cooling inlet is provided on one side of the cooling box body, a light material outlet and a heavy material outlet are provided on the other side, and a feed channel is provided along the feed direction. A light material rising channel, a light material discharge channel, and a heavy material discharge channel arranged in the vertical direction are provided in the cooling box. The bottom end of the light material rising channel is connected to the feed channel, and the light material discharge channel is inclined, with a higher end connected to the top end of the light material rising channel and a lower end connected to the light material outlet. One end of the heavy material discharge channel is connected to the feed channel, and the other end is connected to the heavy material outlet.

6. The environmentally friendly building material production equipment based on phosphogypsum solid waste according to claim 5, characterized in that: The cooling fan assembly includes a first fan and a second fan. The first fan is fixed at the connection point between the light material rising channel and the feed channel, and is used to generate wind force toward the light material rising channel. The second fan is fixed at the connection point between the light material rising channel and the light material discharge channel, and is used to generate wind force toward the light material discharge channel.

7. The environmentally friendly building material production equipment based on phosphogypsum solid waste according to claim 6, characterized in that: The cooling mechanism also includes a transport component, which is arranged in the feed channel, one end of the transport component is connected to the cooling inlet, and the other end is connected to the heavy material discharge channel, and the transport component transports from the cooling inlet to the heavy material discharge channel.

8. The environmentally friendly building material production equipment based on phosphogypsum solid waste according to claim 7, characterized in that: The transport assembly includes a driving motor, a rotating drum and a stainless steel mesh belt. The stainless steel mesh belt is sleeved on the rotating drum. The rotating drum is coaxially fixed with the driving motor. The driving motor drives the rotating drum to rotate. The first fan is placed below the stainless steel mesh belt and corresponds to the entrance of the light material rising channel.

9. The environmentally friendly building material production equipment based on phosphogypsum solid waste according to claim 5, characterized in that: It also includes a secondary crushing and transfer pipeline, one end of which is connected to the heavy material outlet and the other end is connected to the solid waste inlet, so as to recycle and transport the heavy material to the crushing assembly for secondary crushing.

10. The environmentally friendly building material production equipment based on phosphogypsum solid waste according to claim 5, characterized in that: The mixing and stirring mechanism includes a mixing box, a mixing motor, a mixing rod and a plurality of mixing blades. The mixing box is vertically arranged, and a first feed port and a second feed port are opened on the top of the mixing box. The first feed port is connected to the light material outlet, and the second feed port is used for other materials to enter the mixing box. The mixing motor is fixed on the mixing box, and its rotating end extends into the interior of the mixing box. One end of the mixing rod is coaxially fixed with the rotating end of the mixing motor, and the mixing blades are staggered and fixed on the mixing rod.

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