A phosphogypsum road base paving device and its application

Abstract

A phosphogypsum road base paving device and application thereof of the present invention enables the phosphogypsum prefabricated component to be clamped on the base paving unit, and a plurality of base paving units are quickly connected by mutually clamping and grounding by means of clamping columns and clamping buckles. Finally, the phosphogypsum prefabricated component is clamped on the base paving unit through a water hole. The base paving unit includes an active drainage base, which can actively discharge the ground water in the phosphogypsum prefabricated component, thereby ensuring the service life and strength of the phosphogypsum prefabricated component. At the same time, when a certain phosphogypsum prefabricated component is damaged, it is only necessary to pull out the phosphogypsum prefabricated component and then replace it with a new one, which is very convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of building materials, and in particular relates to a phosphogypsum road base paving device and application thereof. Background Art

[0002] Phosphogypsum is an industrial solid waste discharged during the production of wet phosphoric acid. Its main component is calcium sulfate dihydrate (CaSO4·2H2O), which has a high water content and strong viscosity. In order to solve the environmental problems caused by the storage and treatment of phosphogypsum, many technologies for the development and application of phosphogypsum resource recovery have emerged in the existing technology. For example, Patent Document 1 discloses a method and equipment for preparing road bricks containing phosphogypsum blocks, wherein the phosphogypsum is pressed into an impermeable cement concrete shell, so that when the phosphogypsum is used as a road brick, the phosphogypsum can be prevented from contacting water again to reduce its compressive strength. Although the use of impermeable cement concrete as a sealed shell to seal the phosphogypsum in a sealed space can prevent water penetration to a certain extent, as time goes by or when the road brick is subjected to external force and the shell breaks or cracks, the water entering the shell from the upper part of the shell will continue to soak the phosphogypsum. At this time, the sealed shell will prevent the entered water from being discharged, further worsening the environment in which the phosphogypsum is located. At the same time, before pressing the phosphogypsum into the concrete shell, it does not consider whether there is residual water in the concrete shell, nor does it consider that the phosphogypsum will release a certain amount of water after the phosphogypsum is pressed into it. If the brick manufacturing process of Patent Document 2 is followed, some water will inevitably remain in the shell, which will inevitably cause the strength of the phosphogypsum to decrease. Patent Document 1 only considers how to prevent water penetration, but if there is water penetration, it will not Further, patent document 2 discloses a water-retaining, cooling and water-cutting brick and a manufacturing method thereof. In order to alleviate the urban heat island effect, the top surface of the brick is used as a permeable surface layer 1, and the bottom of the brick is set as a hard protective layer 3, and an overflow port 4 is set on the arc-shaped top surface of the hard protective layer 3. The overflow port is set so that the water in the hard protective layer 3 will not accumulate too much, which can ensure that there is enough water in the brick and achieve the purpose of transparency. Although the overflow port is set at the bottom of the brick, which can make the water in the brick seep out, it is only a simple There is only one opening, and the purpose of setting the opening is only to ensure that there is enough water in the brick; for example, Patent Document 3 discloses a production process for high-doped phosphogypsum unfired bricks, which is carried out by transferring the brick blanks to a dryer for drying and dehydration at 125°C-180°C to obtain dehydrated brick blanks, and then hydrating and recrystallizing them to obtain high-strength phosphogypsum unfired bricks. Although high-strength phosphogypsum bricks can be obtained, it only provides a process and does not mention the specific device structure used, and it also does not take into account the problem of lower strength when exposed to water during subsequent use.

[0003] [Patent document 1] CN113354379A;

[0004] [Patent document 2] CN109972472A;

[0005] [Patent document 3]CN102172968A.

[0006] In the prior art, phosphogypsum has been used in road bricks. However, as to how to avoid the deterioration of the performance of phosphogypsum when it comes into contact with water, only a consideration is given to setting up an impermeable cement concrete shell that passively prevents phosphogypsum from coming into contact with water. Although the problem of phosphogypsum coming into contact with water can be improved to a certain extent, it cannot actively discharge the moisture in the phosphogypsum. When there is water inside the brick, it cannot drain the water inside. The accumulated moisture will soak the phosphogypsum, causing the performance of the brick to deteriorate. For road bricks, they are only laid on the ground without considering the coordination problem between brick bodies. Based on this, the present application provides a phosphogypsum road base paving device and its application, which uses phosphogypsum to make bricks and can actively discharge the water in the brick body, and each brick body can be flexibly coordinated. Summary of the invention

[0007] In order to overcome the shortcomings of the existing phosphogypsum road base paving, the present invention provides a technical solution, a phosphogypsum road base paving device, which includes a plurality of base paving units, the base paving units include an active drainage base, a snap-fit ​​column and a snap-fit ​​buckle fixedly arranged on the side wall of the active drainage base, the side wall of the active drainage base is provided with two snap-fit ​​columns and two snap-fit ​​buckles, and the two snap-fit ​​columns are respectively arranged on the adjacent side walls of the active drainage base, and the snap-fit ​​buckles are respectively arranged on the opposite side walls of the snap-fit ​​columns, a plurality of base paving units are snapped together through the cooperation of the snap-fit ​​columns and the snap-fit ​​buckles to form a phosphogypsum road base, and the phosphogypsum prefabricated parts are placed on the base paving units to complete the paving of the road surface.

[0008] Preferably, a water hole is provided on one side of the phosphogypsum prefabricated component, and the active drainage base is inserted into the water hole to actively drain water when there is water in the phosphogypsum prefabricated component, while preventing water from entering the phosphogypsum prefabricated component, thereby ensuring the service life and usage strength of the phosphogypsum prefabricated component, and the phosphogypsum prefabricated component is a brick body.

[0009] Preferably, the active drainage base includes a base shell, a water collecting bag and an elastic support plate. The water collecting bag passes through the water inlet and is fixed to the upper end of the base shell, passes through the water outlet and is fixed to the outer side of the base shell. The water collecting bag is supported on the base shell through the elastic support plate. An inlet opening control structure is provided between the water inlet and the water collecting bag, and an outlet opening control structure is provided between the water outlet and the water collecting bag. The inlet opening control structure and the outlet opening control structure are connected by an opening connecting rod. When the amount of water in the water collecting bag is sufficient, the elastic support plate that moves downward can drive the action of the opening opening control structure and the inlet opening control structure, thereby controlling the opening size of the water inlet and the water outlet, sucking water from the water inlet, and then discharging it from the water outlet. After a certain amount of water in the water collecting bag is discharged, the elastic support plate can recover, thereby automatically draining water to ensure the dryness of the brick body.

[0010] Preferably, the outlet opening control structure includes a lower left clamp rod, a lower right clamp rod and a return spring, the lower left clamp rod and the lower right clamp rod are both arranged in the elastic support plate and can slide left and right relative to the elastic support plate, and guide rails are arranged on the left and right side walls of the base shell, the return spring is fixedly arranged between the lower left clamp rod and the elastic support plate, and between the lower right clamp rod and the elastic support plate, the left end of the lower left clamp rod is driven by the return spring to always contact the guide rail, and the right end of the lower right clamp rod is driven by the return spring to always contact the guide rail, the right end of the lower left clamp rod and the left end of the lower right clamp rod adjust the opening size or closing of the water collecting bag at the water outlet.

[0011] Preferably, the inlet opening control structure includes an upper support plate, an upper left clamp rod, an upper right clamp rod and a return spring, the upper end of the water collecting bag passes through the upper support plate, the upper left clamp rod and the upper right clamp rod are both arranged in the upper support plate, and can slide left and right relative to the upper support plate, the return spring is fixedly arranged between the upper left clamp rod and the upper support plate, and between the upper right clamp rod and the upper support plate, the left end of the upper left clamp rod is driven by the return spring to always contact the guide plate slide rail, and the right end of the upper right clamp rod is driven by the return spring to always contact the guide plate slide rail, the right end of the upper left clamp rod and the left end of the upper right clamp rod adjust the opening size or closing of the water collecting bag at the water inlet.

[0012] Preferably, the lower left clamp rod, the lower right clamp rod, the upper left clamp rod and the upper right clamp rod each include a clamp rod body, a guide wheel and an arc-shaped clamp sleeve, the guide wheel is located at one end of the clamp rod body, and the arc-shaped clamp sleeve is located at the other end of the clamp rod body.

[0013] Preferably, the two guide plate slide rails are mirror-symmetrical to each other along the axis of the base shell, and the guide plate slide rails include, from top to bottom, an AB straight line segment, a BD arc segment, a DF straight line segment, an FH arc segment and a HI straight line segment. When the guide wheel slides in the AB straight line segment, the water inlet is in a fully open state. When the guide wheel is located in the BD arc segment, the water inlet is in a gradually decreasing state. When it is located at point D, the water inlet is in a fully closed state. When the guide wheel is located in the DF straight line segment, both the water inlet and the water outlet are in a fully closed state. When the guide wheel is located in the FH arc segment, the water outlet is in a gradually increasing state. When the guide wheel is located in the HI straight line segment, the water outlet is in a fully open state.

[0014] Preferably, the BD arc segment includes a BC arc segment and a CD arc segment, the radius of the BC arc segment is r1, the radius of the CD arc segment is r2, the FH arc segment includes a FG arc segment and a GH arc segment, the radius of the FG arc segment is r3, the radius of the GH arc segment is r4, the centers of the BC arc segment and the CD arc segment are respectively located at the two ends of the BD arc segment, and the centers of the FG arc segment and the GH arc segment are respectively located at the two ends of the FH arc segment.

[0015] Preferably, the active drainage base also includes an active adjustment part, which includes a sliding sleeve and an active driving cylinder. The sliding sleeve is mounted on the upper right clamping rod, the upper end of the active driving cylinder is fixed to the upper end of the base shell, and the lower end of the active driving cylinder is fixedly connected to the sliding sleeve. The active driving cylinder can drive the upper right clamping rod to rise and fall, and the opening connecting rod is also a controllable telescopic driving cylinder structure. The active driving cylinder cooperates with the opening connecting rod to assist in the discharge of water in the water collecting bag.

[0016] The invention discloses an application of a phosphogypsum road base paving device, wherein the base paving device is used for paving road bricks.

[0017] The beneficial effects of the present invention are:

[0018] 1) The phosphogypsum road base paving device of the present invention clamps the phosphogypsum prefabricated component on the active drainage base, and uses the active drainage base as the base for paving. The side of the active drainage base is provided with a clamping column and a clamping buckle, so that each active drainage base can be detachably connected to each other. The arrangement of the clamping column and the clamping buckle can make it possible to flexibly arrange the specific number and position of bricks when paving the road surface, and because it is a clamping arrangement method, it can be convenient to replace. After the bricks as the phosphogypsum prefabricated component are clamped on the active drainage base, since the bases are clamped with each other, it is also possible that when paving the bricks, there is no need to set up an additional adhesive structure such as concrete between the bricks, so that the paving of the road base can be faster and more convenient.

[0019] 2) In the phosphogypsum road base paving device of the present invention, phosphogypsum is used to manufacture road bricks. First, a closed shell composed of impermeable cement concrete is made, and then the phosphogypsum is poured into the closed shell and pressed into a phosphogypsum block, so that the phosphogypsum block and the closed shell are arranged in a close relationship, thereby improving the overall structural strength of the brick body. After the phosphogypsum block solidifies for a period of time, the closed shell is rotated 180°, so that the moisture in the phosphogypsum block and the closed shell can be completely poured out, thereby avoiding the influence of residual moisture on the formed brick body;

[0020] 3) The phosphogypsum road base paving device of the present invention takes into account that the closed shell needs to be rotated 180°. In order to prevent the phosphogypsum from falling out, when the closed shell is formed, the inner wall of the formed shell is a ladder-shaped structure with a small opening and a large bottom, and the pressure head for compression molding can form the ladder-shaped structure at one time, and no additional operations are required, and only compression molding is required;

[0021] 4) After the moisture of the phosphogypsum is drained, it is turned 180 degrees so that the opening of the closed shell faces upward, and finally the top cover of the closed shell is cast. The top cover includes a water hole, and the water hole is used to guide the water out of the closed shell when there is water in the closed shell. The bottom of the closed shell is also provided with an active drainage base, and the active drainage base can guide the water in the closed shell into it, and after the water accumulates to a certain amount, it can automatically spray the water. Since the water has a certain spray force when it is discharged, it will not allow the water to be absorbed from there. Compared with the existing passive water blocking, it can ensure the environment of the phosphogypsum and ensure the strength of the phosphogypsum;

[0022] 5) Further, the active drainage base is used in conjunction with a brick body with a closed shell, and the active drainage base can be used repeatedly. After the brick body is damaged, it can be used in conjunction with a new brick body. A water collection bag is arranged in the active drainage base, and the water collection bag includes a water inlet and a water outlet distributed up and down. The water inlet is connected to the water hole of the top cover, and the water outlet is used to spray the water in the water collection bag out of the base. When the water in the water collection bag exceeds a certain amount, the water inlet and the water outlet can be automatically opened or closed, thereby automatically realizing the release of water in the water collection bag;

[0023] 6) Further, the water collecting bag of the active drainage base is placed on an elastic support plate supported by an elastic member, and an outlet opening control structure capable of controlling the opening and closing of the water outlet is arranged on the elastic support plate, and the elastic support plate slides up and down according to the amount of water in the water collecting bag, and the elastic support plate slides on the guide plate slide rail, and a pre-set protrusion structure is arranged on the guide plate slide rail, and the pre-set protrusion structure can control the size of the outlet opening control structure, thereby being able to adjust the opening and closing of the water outlet;

[0024] 7) Further, the water inlet and the water outlet are respectively provided with an inlet opening control structure and an outlet opening control structure, and both control structures realize the opening and closing and size adjustment of the opening through a sliding rod structure, and a guide wheel is provided at the end of the sliding rod structure, and the guide wheel slides along the guide rail, and the action sequence and action mode of the inlet opening control structure and the outlet opening control structure can be controlled by setting the form of the guide rail surface, and the intelligent control of the water collection bag can be realized through the form of the guide rail surface;

[0025] 8) Furthermore, the mutual distance between the inlet opening control structure and the outlet opening control structure will increase at the beginning, and then the inlet opening control structure will slide synchronously with the outlet opening control structure. With such an arrangement, the inlet of the water collecting bag can generate a suction force at the beginning to suck the water in the closed shell into the water collecting bag, and then the outlet is opened and the inlet is closed, so that the water in the water collecting bag is sprayed out from the outlet, so that the water cannot be sucked in from the outlet again, ensuring that the water will not flow back from the water collecting bag into the closed shell. After the water in the water collecting bag is released, the water collecting bag becomes lighter, and the elastic member makes the elastic support plate slide upward, so that the water collecting bag is reset, and the inlet opening control structure and the outlet opening control structure are also reset. When the water collecting bag collects enough water again, the next cycle action is performed;

[0026] 9) Furthermore, in order to be able to more intelligently control the drainage of the active drainage device, the active drainage base also includes an active adjustment component that can actively drive the inlet opening control structure and the outlet opening control structure. The active adjustment component can cooperate with the opening connecting rod to make the drainage in the water collecting bag more intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the phosphogypsum road base paving device of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the active drainage base of the present invention;

[0029] Figure 3 Schematic diagram of the structure for installing active drainage base into prefabricated phosphogypsum components;

[0030] Figure 4 Schematic diagram of each clamping rod structure;

[0031] Figure 5 Schematic diagram of the guide rail structure;

[0032] Figure 6 A schematic structural diagram of an active drainage base according to another embodiment;

[0033] Figure 7 The present invention provides a process flow for manufacturing the phosphogypsum prefabricated components;

[0034] Figure 8 Schematic diagram of the pressure head structure used for prefabricated components.

[0035] Description of symbols

[0036] 1. Mould; 2. Top side plate; 3. Impermeable concrete; 4. Concrete shell 1; 5. High-strength phosphogypsum; 6. Concrete top cover; 7. Water hole; 8. Sliding pressure head; 9. Left triangular block; 10. Right triangular block; 11. Triangular block retracting and releasing mechanism; 12. Driving motor; 13. Rotating screw; 14. Sliding nut; 15. Left connecting rod; 16. Right connecting rod; 17. Brick body; 18. Active drainage base; 19. Base shell; 20. Water inlet; 21. Water outlet; 22. Water collecting bag; 23. Elastic support plate; 24. Elastic support member; 25. Inlet opening control Control structure; 26. Outlet opening control structure; 27. Opening connecting rod; 28. Upper support plate; 29. ​​Upper left clamping rod; 30. Upper right clamping rod; 31. Lower left clamping rod; 32. Lower right clamping rod; 33. Upper opening; 34. Lower opening; 35. Clamping rod body; 36. Arc-shaped clamping sleeve; 37. Guide wheel; 38. Return spring; 39. Guide plate slide rail; 40. Triangular groove; 41. Sliding groove; 42. Connecting rod through groove; 43. Engaging column; 44. Engaging buckle; 45. Connecting frame; 46. Active adjustment part; 47. Sliding sleeve; 48. Active driving cylinder; 49. Base paving unit. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the embodiments, but the present invention is not limited in any way. Any changes or substitutions made based on the teachings of the present invention belong to the protection scope of the present invention.

[0038] A phosphogypsum road base paving device, such as Figure 1 As shown, it includes a plurality of base paving units 49, and the base paving units 49 include an active drainage base 18, a snap-fit ​​column 43 and a snap-fit ​​buckle 44 fixedly arranged on the side wall of the active drainage base 18, and the side wall of the active drainage base 18 is provided with two snap-fit ​​columns 43 and two snap-fit ​​buckles 44, and the two snap-fit ​​columns 43 are respectively arranged on the adjacent side walls of the active drainage base 18, and the snap-fit ​​buckles 44 are respectively arranged on the opposite side walls of the snap-fit ​​columns 43. A plurality of base paving units 49 are snapped together through the cooperation of the snap-fit ​​columns 43 and the snap-fit ​​buckles 44 to form a phosphogypsum road base, and the phosphogypsum prefabricated parts are placed on the base paving units 49 to complete the paving of the road surface.

[0039] Preferably, if Figure 2-3As shown, a water hole 7 is provided on one side of the phosphogypsum prefabricated component, and the active drainage base 18 is inserted into the water hole 7 to actively drain water when there is water in the phosphogypsum prefabricated component, while preventing water from entering the phosphogypsum prefabricated component, thereby ensuring the service life and use strength of the phosphogypsum prefabricated component.

[0040] Preferably, the phosphogypsum prefabricated component is a brick body 17;

[0041] Preferably, if Figure 2-3 As shown, the active drainage base 18 includes a base shell 19, a water collecting bag 22 and an elastic support plate 23. The water collecting bag 22 passes through the water inlet 20 and is fixed to the upper end of the base shell 19, passes through the water outlet 21 and is fixed to the outer side of the base shell 19. The water collecting bag 22 is supported on the base shell 19 through the elastic support plate 23. An inlet opening control structure 25 is provided between the water inlet 20 and the water collecting bag 22, and an outlet opening control structure 26 is provided between the water outlet 21 and the water collecting bag 22. The inlet opening control structure 25 is provided between the water inlet 20 and the water collecting bag 22. 5 and the outlet opening control structure 26 are connected by an opening connecting rod 27. When the water volume of the water collecting bag 22 is large enough, the elastic support plate 23 can drive the opening control structure 26 and the inlet opening control structure 25 to move downward, thereby controlling the opening size of the water inlet 20 and the water outlet 21, sucking water from the water inlet 20, and then discharging it from the water outlet 21. After a certain amount of water in the water collecting bag 22 is discharged, the elastic support plate 23 can be restored, thereby automatically draining water to ensure the dryness of the brick body 17.

[0042] Preferably, in order to ensure the strength of the brick body when stepped on, the base shell 19 is a steel structure or a concrete shell.

[0043] Preferably, the outlet opening control structure 26 includes a lower left clamp rod 31, a lower right clamp rod 32 and a return spring 38, the lower left clamp rod 31 and the lower right clamp rod 32 are both arranged in the elastic support plate 23, and can slide left and right relative to the elastic support plate 23, and the left and right side walls of the base shell 19 are provided with guide rails 39, the return spring 38 is fixedly arranged between the lower left clamp rod 31 and the elastic support plate 23, and between the lower right clamp rod 32 and the elastic support plate 23, the left end of the lower left clamp rod 31 is driven by the return spring 38 to always contact the guide rail 39, and the right end of the lower right clamp rod 32 is driven by the return spring 38 to always contact the guide rail 39, the right end of the lower left clamp rod 31 and the left end of the lower right clamp rod 32 adjust the opening size or closing of the water collecting bag 22 at the water outlet 21.

[0044] Preferably, the inlet opening control structure 25 includes an upper support plate 28, an upper left clamping rod 29, an upper right clamping rod 30 and a return spring 38. The upper end of the water collecting bag 22 passes through the upper support plate 28. The upper left clamping rod 29 and the upper right clamping rod 30 are both arranged in the upper support plate 28 and can slide left and right relative to the upper support plate 28. The return spring 38 is fixedly arranged between the upper left clamping rod 29 and the spring-loaded upper support plate 28, and between the upper right clamping rod 30 and the upper support plate 28. The left end of the upper left clamping rod 29 is driven by the return spring 38 to always contact the guide plate slide rail 39, and the right end of the upper right clamping rod 30 is driven by the return spring 38 to always contact the guide plate slide rail 39. The right end of the upper left clamping rod 29 and the left end of the upper right clamping rod 30 adjust the opening size or closing of the water collecting bag 22 at the water inlet 20.

[0045] Preferably, if Figure 4 As shown, the lower left clamp rod 31, the lower right clamp rod 32, the upper left clamp rod 29 and the upper right clamp rod 30 all include a clamp rod body 35, a guide wheel 37 and an arc-shaped clamp sleeve 36, wherein the guide wheel 37 is located at one end of the clamp rod body 35, and the arc-shaped clamp sleeve 36 is located at the other end of the clamp rod body 35.

[0046] Preferably, the arc-shaped jacket 36 is a semicircular structure. Preferably, in order to be able to adaptively adjust the opening size of the water collecting bag 22 at the water inlet 20 and the water outlet 21, the two arc-shaped jackets 36 can cover the water collecting bag 22, and in order to be able to close the water inlet 20 or the water outlet 21, the arc-shaped jacket 36 can be deformed when being squeezed by each other, so as to be able to close the water inlet 20 or the water outlet 21. Preferably, the arc-shaped jacket 36 can also be a rigid structure, so that the two arc-shaped jackets 36 that cooperate with each other are arranged in a staggered manner, so that the opening size of the water collecting bag 22 can be adjusted while also adjusting its closure.

[0047] Preferably, the opening link 27 is arranged between the upper right clamping rod 30 and the lower right clamping rod 32, the lower end of the opening link 27 is fixedly arranged on the lower right clamping rod 32, and the upper end of the opening link 27 is sleeved on the upper right clamping rod 30 through a sliding sleeve. Preferably, the opening link 27 is an electric, pneumatic or hydraulic telescopic rod structure that can be remotely or intelligently controlled. Preferably, the opening link 27 can also be arranged between the upper left clamping rod and the lower left clamping rod or between the upper support plate 28 and the elastic support plate 23.

[0048] Preferably, if Figure 5As shown, the two guide plate slide rails 39 are mirror-symmetrical to each other along the axis of the base shell 19, and the guide plate slide rails 39 include an AB straight line segment, a BD arc segment, a DF straight line segment, an FH arc segment and a HI straight line segment from top to bottom. When the guide wheel 37 slides in the AB straight line segment, the water inlet 20 is in a fully open state. When the guide wheel 37 is located in the BD arc segment, the water inlet 20 is in a gradually decreasing state. When it is located at point D, the water inlet 20 is in a fully closed state. When the guide wheel 37 is located in the DF straight line segment, the water inlet 20 and the water outlet are both in a fully closed state. When the guide wheel 37 is located in the FH arc segment, the water outlet 21 is in a gradually increasing state. When the guide wheel 37 is located in the HI straight line segment, the water outlet 21 is in a fully open state.

[0049] Preferably, the BD arc segment includes a BC arc segment and a CD arc segment, the radius of the BC arc segment is r1, the radius of the CD arc segment is r2, the FH arc segment includes a FG arc segment and a GH arc segment, the radius of the FG arc segment is r3, the radius of the GH arc segment is r4, the centers of the BC arc segment and the CD arc segment are respectively located at the two ends of the BD arc segment, and the centers of the FG arc segment and the GH arc segment are respectively located at the two ends of the FH arc segment. Through the setting of the above-mentioned arc segments, the water inlet 20 can be gradually changed from open to closed, which adapts to the process of water in the brick body flowing into the water collecting bag from more to less and from fast to slow; the water outlet 21 can be opened slowly in the process of changing from closed to open, to ensure that the water collecting bag has sufficient pressure to spray water, to prevent the surrounding water from being sucked into the water collecting bag again, and then quickly open the water outlet 21 after all the water is flushed away to achieve the purpose of sufficient drainage.

[0050] Preferably, the elastic support plate 23 is supported by an elastic support member 24; preferably, the elastic support member 24 is a spring or a compression spring.

[0051] Preferably, the water outlet 21 is disposed at the bottom or side wall of the base shell 19 .

[0052] Preferably, the upper support plate 28 is provided with an upper opening 33 , through which the water collecting bag 22 passes, and the elastic support plate 23 is provided with a lower opening 34 , through which the water collecting bag 22 passes.

[0053] Preferably, the water collecting bag 22 is a sealed membrane structure with a certain elasticity, and its material may be polyurethane material or rubber material.

[0054] The working method of the active drainage base 18 is as follows: after the brick body 17 is clamped on the water inlet 20, the active drainage base 18 starts to work. In the initial state, the elastic support member 24 supports the elastic support plate 23, so that the guide wheel 37 on the lower left clamp rod 31 and the lower right clamp rod 32 is located at the E point of the guide plate slide rail 39, and the opening link 27 supports the guide wheel 37 on the upper left clamp rod 29 and the upper right clamp rod 28 is located at the A point of the guide plate slide rail 39. At this time, the water inlet 20 is in the state of maximum opening, and the water outlet 21 is in the state of minimum opening. Water flows from the brick body 17 into the water collecting bag 22. When there is water in the brick body 17, the water can be introduced into the water collecting bag 22 outside the brick body 17, thereby fundamentally avoiding the problem that the strength of the gypsum is reduced due to the water in the brick body 17. When water continues to flow into the water collecting bag 22, the weight of the water collecting bag 22 continues to increase, which will compress the elastic support member 24, thereby causing the elastic support plate 23 to move downward. At this time, the descending elastic support plate 23 brings the upper support plate 28 down together through the opening connecting rod 27. At this time, the guide wheels 37 on the lower left clamping rod 31 and the lower right clamping rod 32 slide downward on the EF section of the guide plate slide rail 39, and the upper left clamping rod 29 and the upper right clamping rod 28 are moved downward. The guide wheel 37 on the rod 28 slides downward synchronously on the AD section of the guide rail 39. As the water in the water collecting bag 22 continues to increase, when the guide wheels on the lower left clamping rod 31 and the lower right clamping rod 32 slide downward in the FH section, the guide wheels 37 on the upper left clamping rod 29 and the upper right clamping rod 28 slide on the DE section of the guide rail 39. At this time, the water outlet 21 is in a gradually opening state, and the water inlet 20 changes from being gradually closed to being completely closed, and water is sprayed out from the water outlet 21. If the weight of the water in the water collecting bag 22 still exceeds the elastic support 24, the water collecting bag 22 continues to move downward, the guide wheel is in the HI section, and the outlet The water inlet 21 is fully opened, and water continues to flow out from the water outlet 21. When a certain amount of water in the water collecting bag is released, the elastic support 24 recovers and drives the water collecting bag to slide upward, so that the guide wheels 37 on the upper left clamp rod 29 and the upper right clamp rod 28 and the guide wheels on the lower left clamp rod 31 and the lower right clamp rod 32 move synchronously upward along the guide plate slide rail 39 and finally return to their original positions. The opening link 27 can adjust the distance between the upper support plate 28 and the elastic support plate 23 according to the season or the water content in the brick body, so as to adapt to drainage in different seasons and increase the intelligence and adaptability of the equipment.

[0055] Preferably, if Figure 6As shown, another embodiment of the active drainage base, based on the active drainage base of the first real-time example, also includes an active adjustment member 46, the active adjustment member 46 includes a sliding sleeve 47 and an active drive cylinder 48, the sliding sleeve 47 is sleeved on the upper right clamping rod 30, the upper end of the active drive cylinder 48 is fixed to the upper end of the base shell 19, the lower end of the active drive cylinder 48 is fixedly connected to the sliding sleeve 44, the active drive cylinder 48 can drive the upper right clamping rod 30 to rise and fall, the opening link 27 is also a controllable telescopic drive cylinder structure, the active drive cylinder 48 cooperates with the opening link 27 to complete the discharge of water in the water collecting bag 22.

[0056] Preferably, on the basis of automatic drainage of the active drainage base, the active drive cylinder 48 and the opening link 27 can intervene to ensure that more water in the water collecting bag 22 can be drained. For example, after the guide wheel 37 runs between the DE and HI sections respectively, since the weight in the water collecting bag 22 is not very heavy, even if there is still water in the water collecting bag 22 that has not been drained, the elastic support member 24 will drive the elastic support plate 23 to recover, thereby ending the drainage of the water collecting bag 22. At this time, the active adjustment member 46 and the opening link 27 can be extended at the same time, but the extension amplitude and speed of the active adjustment member 46 are greater than the opening link 27, so that a mutual compression trend can be formed between the upper support plate and the elastic support plate 23, and the water in the water collecting bag 22 continues to be squeezed out; of course, the active adjustment member 46 can also be extended and the opening link 27 can be shortened, and finally the elastic support plate 23 is made stationary relative to the base shell 19, and the upper support plate 28 moves downward relative to the base shell 19, and the water in the water collecting bag 22 continues to be squeezed out. It can also drive other actions of the active drive cylinder 48 or the opening link 27 to speed up the discharge of water from the water outlet buckle 21 and the intake of water from the water inlet 20. By setting it in this way, the singleness of full-automatic operation can be avoided and manual access can be increased.

[0057] At the same time, the active drive cylinder 48 and the opening link 27 can act simultaneously to help the elastic support plate 23 and the upper support plate 28 to return quickly, thereby accelerating the cyclic action of the water collection bag 22 to drain water.

[0058] Preferably, the actions of the active drive cylinder 48 and the opening link 27 can be realized by remote control, PLC programming, etc., which are well-known means in the art and are not the focus of the present invention, so they will not be described in detail.

[0059] Furthermore, if Figure 7 As shown, the phosphogypsum preform is made by the following steps:

[0060] a. Fix the top side plate 2 on the upper side of the mold 1, and add the anti-seepage concrete 3 into the mold 1;

[0061] b. Drive the variable cross-section pressure head structure to press the anti-seepage concrete 3 downward to form a concrete shell 4, wherein the inner side of the concrete shell 4 forms a trapezoidal structure that is short at the top and long at the bottom, and the length of the upper end of the concrete shell 4 is the same as the length of the top side plate 2;

[0062] c. forming high-strength phosphogypsum 5 inside the concrete shell 4;

[0063] d. driving the mold 1 to rotate 180° so that all the water in the high-strength phosphogypsum 5 flows out;

[0064] e. Remove the top side plate 2, pour a concrete top cover b on the high-strength phosphogypsum 5 and the concrete shell 4, and press it with a pressure head. A water hole 7 is left on the concrete top cover 6 to finally form a phosphogypsum prefabricated part.

[0065] Preferably, the impermeable concrete comprises silicate cement, fly ash, river sand, rock particles with a particle size greater than 5 mm, and a water reducing agent.

[0066] Preferably, a rotating shaft is provided on the side of the mold 1, and the rotating shaft is driven by a motor to rotate around the rotating shaft, and the rotation can be achieved through a gear structure. This is not the focus of the present invention, as long as the rotation of the mold 1 can be achieved, it will not be repeated.

[0067] The variable cross-section pressure head structure, such as Figure 8 As shown, the pressure head structure includes a sliding pressure head 8, a left triangular block 9 and a right triangular block 10 hinged to the inner side of the sliding pressure head 8, and a triangular block retracting mechanism 11 that can drive the left triangular block 9 and the right triangular block 10 to hide or extend the sliding pressure block 8. Two triangular grooves 40 are arranged in the sliding pressure head 8, and the left triangular block 9 and the right triangular block 10 are respectively located in a triangular groove 40.

[0068] The triangular block retracting and releasing mechanism 11 includes a driving motor 12, a rotating screw 13, a sliding nut 14, a left connecting rod 15 and a right connecting rod 16. The driving motor 12 is fixedly arranged in the sliding pressure head 8. The output end of the driving motor 12 is connected to the rotating screw 13. The driving motor 12 can drive the rotating screw 13 to rotate. The sliding nut 14 is sleeved on the outside of the rotating screw 13. The two ends of the left connecting rod 15 are respectively hinged to the left triangular block 9 and the sliding nut 14. The two ends of the right connecting rod 16 are respectively hinged to the right triangular block 10 and the sliding nut 14. The upper end of the left triangular block 9 is hinged to the sliding pressure head 8, and the upper end of the right triangular block 10 is hinged to the sliding pressure head 8. The driving motor 12 can drive the left triangular block 9 and the right triangular block 10 to synchronously extend the sliding pressure head 8 or retract the sliding pressure head 8.

[0069] Preferably, a sliding groove 41 for the sliding nut 14 to slide is provided in the sliding pressure head 8, and a connecting rod through groove 42 for the left connecting rod 15 and the right connecting rod 16 to slide is also provided in the sliding pressure head 18.

[0070] Preferably, the sliding pressure head 8 can be driven by a hydraulic cylinder to achieve pressing of the material.

[0071] The steps for forming the high-strength phosphogypsum 5 are as follows:

[0072] a. Add phosphogypsum, cement, kaolinite, yellow sand and water into the concrete shell 4, then stir, start the pressure head structure to compact, and press to form bricks;

[0073] b. Then carry out proper curing, spray water on the top surface of the brick, and then rotate the brick 180° to pour out the water and air dry it, then rotate it 180° again and continue to spray water, and repeat this process to air dry it under natural conditions for 1-2 days to obtain air-dried bricks;

[0074] c. Drying and dehydrating the air-dried bricks at 120°C-180°C to obtain dehydrated bricks;

[0075] d. After the dehydrated bricks are naturally cooled to room temperature, the opening of the concrete shell 4 is facing upward, and water is sprayed into the opening to make the concrete shell 4 full of water. The concrete shell 4 is soaked for 0.5h-2h to obtain hydrated barite bricks;

[0076] e. The concrete shell 4 is rotated continuously to perform natural curing and drying. The high-strength phosphogypsum 5 is obtained by curing and drying under natural conditions for 1-2 days.

[0077] Compared with the prior art, during the curing and drying, the concrete shell 4 can continuously rotate to drive the phosphogypsum to fully contact the air. At the same time, since the internal moisture can flow out through the upper opening of the concrete shell 4, the natural curing and drying time can be reduced, ensuring that the phosphogypsum can be fully dried.

[0078] Preferably, in order to further strengthen the bricks to form a certain early strength, in step a, Yunnan oak sap is also added to the concrete shell 4 to achieve the purpose of enhancing the strength and performance of the components.

[0079] Furthermore, it also includes an application of a phosphogypsum road base paving device, which uses the base paving device for paving a road surface.

[0080] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A phosphogypsum road base paving device, characterized in that: The utility model comprises a plurality of base paving units (49), wherein the base paving units (49) comprise an active drainage base (18), a snap-fitting column (43) and a snap-fitting buckle (44) fixedly arranged on the side wall of the active drainage base (18), the side wall of the active drainage base (18) is provided with two snap-fitting columns (43) and two snap-fitting buckles (44), and the two snap-fitting columns (43) are respectively arranged on the adjacent side walls of the active drainage base (18), and the snap-fitting buckles (44) are respectively arranged on the opposite side walls of the snap-fitting columns (43), and the plurality of base paving units (49) are connected by the snap-fitting columns (43) and the snap-fitting buckles (44). ) are fitted together to form a phosphogypsum road base, and the phosphogypsum prefabricated component is placed on the base paving unit (49) to complete the paving of the road surface; a water hole (7) is provided on one side of the phosphogypsum prefabricated component, and the active drainage base (18) is inserted into the water hole (7) to actively drain water when there is water in the phosphogypsum prefabricated component, while preventing water from entering the phosphogypsum prefabricated component, thereby ensuring the service life and use strength of the phosphogypsum prefabricated component, and the phosphogypsum prefabricated component is a brick body (17); the active drainage base (18) includes a base shell (19), a water collecting bag (22) and The elastic support plate (23) is provided. The water collecting bag (22) passes through the water inlet (20) and is fixed to the upper end of the base shell (19), passes through the water outlet (21) and is fixed to the outer side of the base shell (19). The water collecting bag (22) is supported on the base shell (19) through the elastic support plate (23). An inlet opening control structure (25) is provided between the water inlet (20) and the water collecting bag (22), and an outlet opening control structure (26) is provided between the water outlet (21) and the water collecting bag (22). The inlet opening control structure (25) and the outlet opening control structure (26) are provided between the water outlet (21) and the water collecting bag (22). 6) are connected by an opening connecting rod (27). When the amount of water in the water collecting bag (22) is sufficient, the elastic supporting plate (23) can drive the downward movement of the opening control structure (26) and the inlet opening control structure (25), thereby controlling the opening size of the water inlet (20) and the water outlet (21), sucking water from the water inlet (20) and then discharging it from the water outlet (21). After a certain amount of water in the water collecting bag (22) is discharged, the elastic supporting plate (23) can be restored, thereby automatically draining water and ensuring the dryness of the brick body (17).

2. A phosphogypsum road base paving device as claimed in claim 1, characterized in that: The outlet opening control structure (26) includes a lower left clamping rod (31), a lower right clamping rod (32) and a return spring (38). The lower left clamping rod (31) and the lower right clamping rod (32) are both arranged in the elastic support plate (23) and can slide left and right relative to the elastic support plate (23). The left and right side walls of the base shell (19) are both provided with guide rails (39). The return spring (38) is fixedly arranged on the lower left clamping rod (31) and the elastic support plate. (23), and between the lower right clamp rod (32) and the elastic support plate (23), the left end of the lower left clamp rod (31) is driven by a return spring (38) to always contact the guide plate slide rail (39), and the right end of the lower right clamp rod (32) is driven by a return spring (38) to always contact the guide plate slide rail (39), and the right end of the lower left clamp rod (31) and the left end of the lower right clamp rod (32) adjust the opening size or closing of the water collecting bag (22) at the water outlet (21).

3. A phosphogypsum road base paving device as claimed in claim 2, characterized in that: The inlet opening control structure (25) comprises an upper support plate (28), an upper left clamping rod (29), an upper right clamping rod (30) and a return spring (38); the upper end of the water collecting bag (22) passes through the upper support plate (28); the upper left clamping rod (29) and the upper right clamping rod (30) are both arranged in the upper support plate (28) and can slide left and right relative to the upper support plate (28); the return spring (38) is fixedly arranged on the upper left clamping rod (29) and the upper support plate (28), and between the upper right clamp rod (30) and the upper support plate (28), the left end of the upper left clamp rod (29) is driven by a reset spring (38) to always contact the guide plate slide rail (39), and the right end of the upper right clamp rod (30) is driven by a reset spring (38) to always contact the guide plate slide rail (39), and the right end of the upper left clamp rod (29) and the left end of the upper right clamp rod (30) adjust the opening size or closing of the water collecting bag (22) at the water inlet (20).

4. A phosphogypsum road base paving device as claimed in claim 3, characterized in that: The lower left clamping rod (31), the lower right clamping rod (32), the upper left clamping rod (29) and the upper right clamping rod (30) all include a clamping rod body (35), a guide wheel (37) and an arc-shaped clamping sleeve (36), wherein the guide wheel (37) is located at one end of the clamping rod body (35), and the arc-shaped clamping sleeve (36) is located at the other end of the clamping rod body (35).

5. A phosphogypsum road base paving device as claimed in claim 4, characterized in that: The two guide rails (39) are mirror-symmetrical to each other along the axis of the base shell (19); the guide rails (39) include, from top to bottom, an AB straight line segment, a BD arc segment, a DF straight line segment, an FH arc segment and an HI straight line segment; when the guide wheel (37) slides in the AB straight line segment, the water inlet (20) is in a fully open state; when the guide wheel (37) is located in the BD arc segment, the water inlet (20) is in a gradually decreasing state; when the guide wheel (37) is located at point D, the water inlet (20) is in a fully closed state; when the guide wheel (37) is located in the DF straight line segment, the water inlet (20) and the water outlet are both in a fully closed state; when the guide wheel (37) is located in the FH arc segment, the water outlet (21) is in a gradually increasing state; when the guide wheel (37) is located in the HI straight line segment, the water outlet (21) is in a fully open state.

6. A phosphogypsum road base paving device as claimed in claim 5, characterized in that: The BD arc segment includes a BC arc segment and a CD arc segment, the radius of the BC arc segment is r1, the radius of the CD arc segment is r2, the FH arc segment includes a FG arc segment and a GH arc segment, the radius of the FG arc segment is r3, the radius of the GH arc segment is r4, the centers of the BC arc segment and the CD arc segment are respectively located at the two ends of the BD arc segment, and the centers of the FG arc segment and the GH arc segment are respectively located at the two ends of the FH arc segment.

7. A phosphogypsum road base paving device as claimed in claim 3 or 4, characterized in that: The active drainage base (18) further comprises an active adjustment member (46), wherein the active adjustment member (46) comprises a sliding sleeve (47) and an active drive cylinder (48), wherein the sliding sleeve (47) is sleeved on the upper right clamping rod (30), wherein the upper end of the active drive cylinder (48) is fixed to the upper end of the base shell (19), and the lower end of the active drive cylinder (48) is fixedly connected to the sliding sleeve (47), wherein the active drive cylinder (48) can drive the upper right clamping rod (30) to rise and fall, and the opening connecting rod (27) is also a controllable telescopic drive cylinder structure, wherein the active drive cylinder (48) cooperates with the opening connecting rod (27) to assist in completing the discharge of water in the water collecting bag (22).

8. An application of the phosphogypsum road base paving device according to any one of claims 1 to 7, characterized in that: The phosphogypsum road base paving device is used for laying road brick bodies.

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