Carbon dioxide mineralization building block equipment based on industrial solid waste

Abstract

The invention belongs to the technical field of mineralized building blocks, and particularly relates to carbon dioxide mineralized building block equipment based on industrial solid waste, which comprises a building block mold for forming a building block blank, the building block mold comprises a lower mold and an upper mold for extruding and forming the building block blank, and the carbon dioxide mineralized building block equipment further comprises an unpowered pressure maintaining assembly line for applying pressure maintaining pressure to the building block mold; the unpowered pressure maintaining assembly line comprises a spiral outer pressure maintaining track, a spiral inner pressure maintaining track and a connecting track connecting the outer pressure maintaining track and the inner pressure maintaining track, the spiral direction of the outer pressure maintaining track is opposite to that of the inner pressure maintaining track, and the outer pressure maintaining track, the inner pressure maintaining track and the connecting track are all composed of steel rails arranged in an up-down mirror image mode. According to the unpowered pressure maintaining assembly line, the mode of combining pressure maintaining and storage is adopted, the problem of tedious operation of pressure maintaining is directly solved through the storage mode, the track of the unpowered pressure maintaining assembly line is designed into a spiral shape, the mode that multiple spiral shapes are arranged in a sleeved mode exists, and space can be saved as much as possible.

Description

Technical Field

[0001] This invention belongs to the field of mineralized block technology, specifically relating to a carbon dioxide mineralized block equipment based on industrial solid waste. Background Technology

[0002] Carbon dioxide mineralized blocks are an energy-saving building material and a special type of concrete building material. They are made by uniformly mixing industrial solid waste, primarily steel slag (50-70%), calcium carbide slag (5-15%), and fly ash (5-15%), with a particle size ≤75μm, along with a small amount of cement (10-20%) and fiber reinforcement, and then pressing them into blocks with a near-stone texture. The pressed blocks are then dried at 30-60℃, controlling the moisture content to 10-25%, and then carbonized. During carbonization, the blocks are fed into carbonization equipment, and industrial exhaust gas containing CO2 is introduced. Carbonization is carried out at 20-40℃ for 6-24 hours, allowing the blocks to absorb CO2 and increase their structural strength. The active components such as calcium and magnesium in the solid waste react with the carbon dioxide in the blocks. CO2 reacts to form carbonates, achieving carbon fixation. The flexural strength of uncarbonized blocks is only about 4.5-7 MPa, while that of carbonized blocks can reach 17-20 MPa, an increase of 3-4 times. Moreover, the water absorption rate of carbonized blocks is reduced from 20% to below 9%, and the waterproof performance is improved by more than 50%. Each ton of blocks can solidify about 200 kg of CO2. The amount of CO2 captured and fixed is greater than the amount of CO2 generated by the total energy consumption of the production process, achieving net negative carbon. However, in the process of pressing and forming blocks, it is necessary to maintain the block under mechanical extrusion of 5-20 MPa for 2-3 hours. Traditional production methods that continuously extrude for 2-3 hours will seriously delay the production schedule. Therefore, there is a need for an energy-saving special equipment for building material production that solves the cumbersome operation. Summary of the Invention

[0003] To address the problems mentioned in the background section, this invention provides a carbon dioxide mineralization block production equipment based on industrial solid waste. This equipment is a dedicated device for producing energy-saving building materials, combining pressure holding and storage methods to directly solve the cumbersome operation of pressure holding through storage.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a carbon dioxide mineralization block equipment based on industrial solid waste, comprising a block mold for forming block blanks, the block mold comprising a lower mold and an upper mold for extruding and forming the block blanks, and further comprising a non-powered pressure holding production line for applying pressure holding pressure to the block mold; The non-powered pressure-holding production line includes a spiral-shaped outer pressure-holding track and an inner pressure-holding track, as well as a connecting track connecting the outer pressure-holding track and the inner pressure-holding track. The spiral directions of the outer pressure-holding track and the inner pressure-holding track are opposite. The outer pressure-holding track, the inner pressure-holding track and the connecting track are all made of steel rails arranged in a mirror image.

[0005] As a preferred embodiment of the carbon dioxide mineralization block equipment based on industrial solid waste of the present invention, the non-powered pressure-holding production line further includes an inlet track connected to the bottom of the outer pressure-holding track and an outlet track connected to the bottom of the inner pressure-holding track. Both the inlet track and the outlet track are straight tracks, and both the inlet track and the outlet track are composed of steel rails arranged in a mirror image.

[0006] As a preferred embodiment of the carbon dioxide mineralization block equipment based on industrial solid waste of the present invention, the pressure applied to the block mold at the opening and connection of the inlet and outlet tracks gradually increases from zero to the holding pressure.

[0007] As a preferred embodiment of the carbon dioxide mineralization block equipment based on industrial solid waste of the present invention, both the lower mold and the upper mold are fixedly connected to the side of the steel rail, and the roller brackets are rotatably connected to spherical rollers through a rod shaft. The outer pressure-holding rail, inner pressure-holding rail, connecting rail, entrance rail, and exit rail have wheel grooves on their rail treads that are adapted to the shape of the spherical rollers.

[0008] As a preferred embodiment of the carbon dioxide mineralization block equipment based on industrial solid waste of the present invention, a rubber pad is fixedly connected to one side of the lower mold to prevent direct collision between two adjacent lower molds.

[0009] As a preferred embodiment of the carbon dioxide mineralization block equipment based on industrial solid waste of the present invention, a push hydraulic rod is fixedly connected to the inlet track via a hydraulic rod bracket, and a push head is fixedly connected to the end of the telescopic main shaft of the push hydraulic rod. One-way locking block is rotatably connected to the inner side of the end where the outer pressure-maintaining rail connects to the entrance rail. A limiting edge is provided on the side of the one-way locking block away from the rotating end to restrict its rotation range. The limiting edge is used to contact the bottom surface of the rail of the outer pressure-maintaining rail.

[0010] As a preferred embodiment of the carbon dioxide mineralization block equipment based on industrial solid waste of the present invention, the steel rail at the end of the outlet track is smoothly connected tangentially to one end of the arc track A, and the other end of the arc track A is smoothly connected tangentially to one end of the lower mold opening track. The other end of the lower mold opening track is fixedly connected to the demolding track through the arc track B, and the two ends of the arc track B are smoothly connected tangentially to the lower mold opening track and the demolding track, respectively. An upper mold opening track is provided above the lower mold opening track. From the arc track A to the arc track B, the end of the upper mold opening track is inclined downward, and the distance between the lower mold opening track and the upper mold opening track gradually increases. The distance between the end of track B is not less than twice the distance between the beginning of track A.

[0011] As a preferred embodiment of the carbon dioxide mineralization block equipment based on industrial solid waste of the present invention, the rod shaft is rotatably connected to the roller support. Along the forward direction of the block mold, a small hanging wheel is fixed at the forward end of the upper mold through the end of the rod shaft, and a large hanging wheel is fixed at the rear end of the upper mold through the end of the rod shaft. Both the large and small hanging wheels are in rolling contact with the upper mold opening track, and the connecting line of the rotating shafts of the large and small hanging wheels is parallel to the lower mold opening track.

[0012] As a preferred embodiment of the carbon dioxide mineralization block equipment based on industrial solid waste of the present invention, a lower limit wheel is fixedly connected to the end of the rod shaft of the lower mold, and an inverted limit track is fixedly connected to the lower mold opening track. The tread of the inverted limit track is located above the lower limit wheel, and the inverted limit track and the lower limit wheel are in rolling contact.

[0013] As a preferred embodiment of the carbon dioxide mineralization block equipment based on industrial solid waste of the present invention, a strip-shaped rubber air groove is fixedly connected at the top center of the demolding track, one end of the air inlet pipe is connected to the inner side of the rubber air groove, and the other end of the air inlet pipe is connected to the air compressor. The bottom of the lower mold has an air inlet hole that runs through it, and a movable template is slidably connected to the inner side of the lower mold.

[0014] Compared with the prior art, the beneficial effects of this invention are as follows: The entire block mold is placed into a non-powered pressure-holding production line. Because the pressure-holding duration is relatively long, to save costs and simplify the pressure-holding process and cumbersome operation steps, mechanical pressure holding is achieved by directly placing the entire block mold into the non-powered pressure-holding production line. The gap between the outer pressure-holding track, inner pressure-holding track, and connecting track in the non-powered pressure-holding production line will compress the lower and upper molds. After the block mold enters from the entrance of the outer pressure-holding track, it moves inside the outer pressure-holding track, enters the connecting track, then enters the inner pressure-holding track, and finally exits from the inner pressure-holding track. The entire process is relatively quick. The time should be 2-3 hours. The movement of the block mold in the non-powered pressure holding production line and the length of the non-powered pressure holding production line need to be determined according to the time interval of the block mold placement and the length of the block mold. The time interval of the block mold placement is the time used in the extrusion molding stage. The design of this energy-saving building material production equipment can reduce the operation in the block mold pressure holding process. The combination of pressure holding and storage directly solves the cumbersome operation problem of pressure holding through storage. The track of the non-powered pressure holding production line is designed as a spiral with multiple spirals interlocking, which can save space as much as possible. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 In this invention Figure 1 An enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the structure of the non-powered pressure-holding production line in this invention; Figure 4 This is a schematic diagram of the separation structure of the unidirectional card block in this invention; Figure 5 This is a side view of the overall structure of the present invention; Figure 6 In this invention Figure 5 A magnified structural diagram at point B; Figure 7 This is a schematic diagram of the connection structure between the lower mold opening track and the upper mold opening track in this invention; Figure 8 This is a simplified diagram of the mating structure of the lower mold opening track and the upper mold opening track in this invention; Figure 9 This is a three-dimensional diagram of the connection structure between the lower mold opening track and the upper mold opening track in this invention; Figure 10 In this invention Figure 9 A magnified structural diagram at point C; Figure 11 This is a schematic diagram of the separation structure of the lower mold and the upper mold in this invention; Figure 12 This is a partial sectional view of the block blank and the lower mold in this invention; Figure 13 This is a schematic diagram of the combined structure of the external pressure-holding track, the block mold, and the demolding track in this invention; Figure 14 In this invention Figure 13 A magnified structural diagram at point D; In the picture: 1. Block blank; 2. Block mold; 3. Non-powered pressure holding production line; 4. Fixed frame; 5. Pushing hydraulic rod; 6. Hydraulic rod support; 7. Pushing head; 201. Lower mold; 202. Upper mold; 203. Air inlet; 204. Movable template; 205. Roller bracket; 206. Spherical roller; 207. Lower limit wheel; 208. Large hanging wheel; 209. Small hanging wheel; 2010. Rubber pad; 301. External pressure-holding rail; 302. Internal pressure-holding rail; 303. Connecting rail; 304. Inlet rail; 305. Outlet rail; 306. Arc-shaped rail A; 307. Lower mold opening rail; 308. Upper mold opening rail; 309. Arc-shaped rail B; 3010. Demolding rail; 3011. One-way locking block; 3012. Limiting edge; 3013. Upper shock absorber head; 3014. Lower shock absorber head; 3015. Rubber air groove; 3016. Air inlet pipe; 3017. Inverted limit rail; 3018. Wheel groove; 401. Through the window. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figures 1-14 As shown: A carbon dioxide mineralization block equipment based on industrial solid waste includes a block mold 2 for forming a block blank 1. The block mold 2 includes a lower mold 201 and an upper mold 202 for extruding and forming the block blank 1. It also includes a non-powered pressure holding production line 3 for applying pressure holding pressure to the block mold 2. The non-powered pressure-holding production line 3 includes a spiral-shaped outer pressure-holding track 301 and an inner pressure-holding track 302, as well as a connecting track 303 connecting the outer pressure-holding track 301 and the inner pressure-holding track 302. The spiral directions of the outer pressure-holding track 301 and the inner pressure-holding track 302 are opposite. The outer pressure-holding track 301, the inner pressure-holding track 302 and the connecting track 303 are all composed of steel rails arranged in a mirror image.

[0018] Carbon dioxide mineralized blocks are made by uniformly mixing industrial solid waste, primarily steel slag (50-70%), calcium carbide slag (5-15%), and fly ash (5-15%), with a particle size ≤75μm, along with a small amount of cement (10-20%) and fiber reinforcement, and pressing them into blocks with a near-stone texture. The pressed block blanks are then dried at 30-60℃, controlling the moisture content to 10-25%, and then carbonized. During carbonization, the block blanks are fed into a carbonization device, and industrial exhaust gas containing CO2 is introduced. Carbonization is carried out at 20-40℃ for 6-24 hours, allowing the block blanks to absorb CO2, increasing their structural strength. The active components such as calcium and magnesium in the solid waste are also utilized. The carbon dioxide reacts with CO2 to form carbonates, thus achieving carbon fixation. The flexural strength of the uncarbonized block blank 1 is only about 4.5-7 MPa, while that of the carbonized block blank 1 can reach 17-20 MPa, an increase of 3-4 times. Moreover, the water absorption rate of the carbonized block blank 1 is reduced from 20% to below 9%, and the waterproof performance is improved by more than 50%. Each ton of block blank 1 can solidify about 200 kg of CO2. The amount of CO2 captured and fixed is greater than the amount of CO2 generated by the total energy consumption of the production process, achieving net negative carbon. However, in the process of pressing and molding the block blank 1, it needs to be held under the mechanical extrusion of the mold at 5-20 MPa for 2-3 hours. Traditional production methods that continuously extrude for 2-3 hours will seriously delay the production progress. A fixed amount of mixed powder for making carbon dioxide mineralized blocks is placed into the lower mold 201, and then the upper mold 202 is installed. If significant resistance is encountered during the installation of the upper mold 202, the block mold 2 can be shaken or tilted. After the upper mold 202 and the lower mold 201 form a sealed space, the lower mold 201 needs to be flipped. Then, the lower mold 201 and the upper mold 202 are pressed together by an extruder, causing the mixed powder to be extruded. The extrusion pressure is 15-30 MPa and the extrusion is continued for 30-60 seconds, causing the mixed powder to be extruded into shape. In this process, the flat surfaces of the lower mold 201 and the upper mold 202 need to be compressed. Then, without disassembling the block mold 2, the entire block mold 2 is placed directly into the non-powered pressure holding production line 3. Due to the long duration of pressure holding, in order to save costs and simplify the pressure holding process and cumbersome operation steps, mechanical pressure holding is achieved by directly placing the entire block mold 2 into the non-powered pressure holding production line 3. The gap between the outer pressure holding track 301, the inner pressure holding track 302, and the connecting track 303 in the non-powered pressure holding production line 3 will compress the lower mold 201 and the upper mold 202. The pressure exerted on the lower mold 201 and upper mold 202 is between 5-20 MPa. After the block mold 2 enters from the entrance of the outer pressure-holding track 301, it moves inside the outer pressure-holding track 301, enters the connecting track 303, then enters the inner pressure-holding track 302, and finally exits from the inner pressure-holding track 302. The entire process should take 2-3 hours. The movement of the block mold 2 in the non-powered pressure-holding production line 3 is achieved by the continuous entry of the block mold 2, which compresses and pushes several block molds 2 located in the non-powered pressure-holding production line 3, enabling them to move. This is similar to the principle of a train. In other words, the length of the non-powered pressure holding production line 3 needs to be determined based on the time interval between the insertion of the block mold 2 and the length of the block mold 2. The time interval between the insertion of the block mold 2 is the time used in the extrusion molding stage. This design can reduce the operation during the pressure holding process of the block mold 2. By combining pressure holding with storage, the cumbersome operation problem of pressure holding can be directly solved through storage. The track of the non-powered pressure holding production line 3 is designed as a spiral with multiple spirals nested together, which can save space as much as possible.

[0019] In an optional embodiment, the non-powered pressure-holding production line 3 further includes an inlet rail 304 connected to the bottom of the outer pressure-holding rail 301 and an outlet rail 305 connected to the bottom of the inner pressure-holding rail 302. Both the inlet rail 304 and the outlet rail 305 are straight rails, and both the inlet rail 304 and the outlet rail 305 are composed of steel rails arranged in a mirror image.

[0020] In this embodiment, the process of feeding the block mold 2 into and out of the non-powered pressure-holding production line 3 can be achieved through the inlet track 304 and the outlet track 305. When both the inlet track 304 and the outlet track 305 are straight tracks, it is more conducive to feeding the block mold 2 into the production line and makes the operation easier.

[0021] In an optional embodiment, the pressure applied to the block mold 2 at the openings and connection points of the inlet track 304 and the outlet track 305 gradually increases from zero to the holding pressure.

[0022] In this embodiment, the pressure applied to the block mold 2 from the opening to the connection of the inlet track 304 and the outlet track 305 gradually increases from zero to the holding pressure. This facilitates the feeding of the block mold 2. When the block mold 2 is fed into the opening of the inlet track 304, there is no resistance from the track squeezing the block mold 2, making it easy to put the block mold 2 into the inlet track 304. Then, during the process of pushing the block mold 2 through the inlet track 304 into the outer holding pressure track 301, the block mold 2 is gradually squeezed by the inlet track 304. When it reaches the end of the inlet track 304, the squeezing pressure of the inlet track 304 on the block mold 2 reaches the holding pressure. This is a technical effect brought about by the fact that the distance at the entrance of the inlet track 304 is greater than the distance at the end. Similarly, the outlet track 305 can gradually release the squeezing pressure on the block mold 2, avoiding the block mold 2 from violently vibrating or moving due to sudden pressure release when it is moved out.

[0023] In an optional embodiment, roller brackets 205 are fixedly connected to the side of the lower mold 201 and the upper mold 202 near the rail, and spherical rollers 206 are rotatably connected to the roller brackets 205 via a rod shaft. The outer pressure-maintaining rail 301, the inner pressure-maintaining rail 302, the connecting rail 303, the entrance rail 304, and the exit rail 305 are provided with wheel grooves 3018 that are adapted to the shape of the spherical roller 206 at the rail treads.

[0024] In this embodiment, the non-powered pressure-holding production line 3 has a curved track, and the spherical roller 206 helps to move in the curved track.

[0025] In an optional embodiment, a rubber pad 2010 is fixedly connected to one side of the lower mold 201 to prevent direct collision between two adjacent lower molds 201.

[0026] In this embodiment, the non-powered pressure holding production line 3 has a curved track. The block molds 2 are squeezed against each other in the curved track, which can easily lead to direct squeezing at the corners of the block molds 2. In order to avoid squeezing damage caused by mutual squeezing, the rubber pad 2010 can be set to avoid this problem.

[0027] In an optional embodiment, a push hydraulic rod 5 is fixedly connected to the inlet track 304 via a hydraulic rod bracket 6, and a push head 7 is fixedly connected to the end of the telescopic main shaft of the push hydraulic rod 5. One-way locking block 3011 is rotatably connected to the inner side of the end where the outer pressure-maintaining rail 301 is connected to the inlet rail 304. A limiting edge 3012 is provided on the side of the one-way locking block 3011 away from the rotating end to limit its rotation range. The limiting edge 3012 is used to contact the bottom surface of the rail of the outer pressure-maintaining rail 301.

[0028] In this embodiment, after the block mold 2 is placed in the inlet track 304, the extension of the hydraulic rod 5 pushes the block mold 2 into the outer pressure-holding track 301. To prevent the block mold 2 from sliding out of the outer pressure-holding track 301, a one-way locking block 3011 is provided. After the block mold 2 is pushed into the outer pressure-holding track 301, it will press against the inclined surface of the one-way locking block 3011, forcing the one-way locking block 3011 to rotate. The block mold 2 moves past the one-way locking block 3011. After the block mold 2 passes the one-way locking block 3011, the one-way locking block 3011 will return to its original position due to its own gravity. When it returns to its original position, it contacts the bottom surface of the rail of the outer pressure-holding track 301 through the limiting edge 3012, thereby limiting the rotation range of the one-way locking block 3011. The plane in the one-way locking block 3011 that is in contact with the inclined surface will fit with the surface of the block mold 2, thereby preventing the block mold 2 from moving in the opposite direction.

[0029] In an optional embodiment, the rail at the end of the exit track 305 is smoothly connected tangentially to one end of the arc track A306, and the other end of the arc track A306 is smoothly connected tangentially to one end of the lower mold opening track 307. The other end of the lower mold opening track 307 is fixedly connected to the demolding track 3010 via the arc track B309, and both ends of the arc track B309 are smoothly connected tangentially to the lower mold opening track 307 and the demolding track 3010, respectively. An upper mold opening track 308 is provided above the lower mold opening track 307. From the arc track A306 to the arc track B309, the end of the upper mold opening track 308 is inclined downward, and the distance between the lower mold opening track 307 and the upper mold opening track 308 gradually increases. The distance between the end points of track B is not less than twice the distance between the beginning points of track A.

[0030] In this embodiment, after the block mold 2 moves out of the inner pressure-holding track 302, it moves along the arc-shaped track A306 to above the lower mold opening track 307. The lower mold 201 moves in conjunction with the lower mold opening track 307, while the upper mold 202 moves in conjunction with the upper mold opening track 308. From the arc-shaped track A306 to the arc-shaped track B309, the distance between the lower mold opening track 307 and the upper mold opening track 308 gradually increases, enabling the upper mold 202 to be pulled out of the lower mold 201. Since the contact area between the block blank 1 and the upper mold 202 is smaller than the contact area between the block blank 1 and the lower mold 201, when the lower mold 201 separates from the upper mold 202, the block blank 1 remains in the lower mold 201. Furthermore, due to gravity, the block blank 1 tends to remain in the lower mold 201. The distance between the end points of track B is not less than twice the distance between the beginning points of track A, which allows the lower mold 201 and the upper mold 202 to completely separate when the block mold 2 moves to the end point. From the arc track A306 to the arc track B309, the end of the upper mold opening track 308 is inclined downwards, which allows the block mold 2 to move actively under the influence of gravity. The movement of the block mold 2 can achieve the separation of the lower mold 201 and the upper mold 202. When the block mold 2 cannot slide due to gravity (because sliding requires overcoming the resistance of the separation of the lower mold 201 and the upper mold 202), it can be manually pushed.

[0031] In an optional embodiment, the rod shaft is rotatably connected to the roller bracket 205. Along the forward direction of the block mold 2, a small hanging wheel 209 is fixed at the forward end of the upper mold 202 through the end of the rod shaft, and a large hanging wheel 208 is fixed at the rear end of the upper mold 202 through the end of the rod shaft. Both the large hanging wheel 208 and the small hanging wheel 209 are in rolling contact with the upper mold opening track 308, and the connecting line of the rotation axis of the large hanging wheel 208 and the small hanging wheel 209 is parallel to the lower mold opening track 307.

[0032] In this embodiment, as Figure 8 As shown in the figure, this diagram represents a simplified schematic of the rolling contact between the large hanging wheel 208 and the small hanging wheel 209 in the upper mold 202 and the upper mold opening track 308. The upper part of the diagram assumes the lower mold opening track 307 is horizontal, while the lower part shows the state after the overall assumed shape of the upper part is tilted. It can be seen from the diagram that when both the large hanging wheel 208 and the small hanging wheel 209 are in rolling contact with the upper mold opening track 308, the upper mold opening track 308 will necessarily be tilted relative to the lower mold opening track 307. The connecting line of the rotation axes of the large hanging wheel 208 and the small hanging wheel 209 (i.e.,...) Figure 8The dotted line in the diagram is always parallel to the lower mold opening track 307. However, as the upper mold 202 moves, the distance between the connecting line of the rotating shafts of the large hanging wheel 208 and the small hanging wheel 209 and the lower mold opening track 307 will change. This ensures that when the block mold 2 moves with the lower mold opening track 307 and the upper mold opening track 308, the lower mold 201 and the upper mold 202 remain parallel when separated. This prevents damage to the block mold 2 and the block blank 1 when they separate.

[0033] In an optional embodiment, a lower limit wheel 207 is fixedly connected to the end of the rod shaft of the lower mold 201, and an inverted limit track 3017 is fixedly connected to the lower mold opening track 307. The tread of the inverted limit track 3017 is located above the lower limit wheel 207, and the inverted limit track 3017 and the lower limit wheel 207 are in rolling contact.

[0034] In this embodiment, to avoid the separation resistance being greater than the weight of the lower mold 201 when the lower mold 201 and the upper mold 202 separate, a lower limit wheel 207 fixed to the end of the rod shaft is installed on the lower mold 201, and the lower mold 201 is prevented from moving upward by the rolling contact between the inverted limit track 3017 and the lower limit wheel 207.

[0035] In an optional embodiment, a strip-shaped rubber air groove 3015 is fixedly connected to the top center of the demolding track 3010, one end of the air inlet pipe 3016 is connected to the inner side of the rubber air groove 3015, and the other end of the air inlet pipe 3016 is connected to an air compressor. The bottom of the lower mold 201 has an air inlet 203 that extends through the bottom, and the inner side of the lower mold 201 is slidably connected to a movable template 204.

[0036] In this embodiment, after the lower mold 201 separates from the upper mold 202, the upper mold 202 moves to the end of the upper mold opening track 308 and stops after contacting the upper shock absorber 3013. The upper shock absorber 3013 can reduce vibration and prevent the upper mold 202 from being bumped. After the lower mold 201 separates from the lower mold opening track 307, it enters the demolding track 3010 through the arc track B309. The lower mold 201 will contact the lower shock absorber 3014 and stop moving. At this time, the bottom surface of the lower mold 201 will contact and seal with the rubber air groove 3015. The air groove in the rubber air groove 3015 will cover the air inlet 203. At this time, the worker can control the high-pressure gas in the air compressor to enter the rubber air groove 3015 through the air inlet pipe 3016. The gas in the rubber air groove 3015 will enter the lower mold 202 through the air inlet 203. In step 01, the high-pressure gas entering the lower mold 201 pushes the movable template 204 upward, thereby pushing the block blank 1 upward by a portion. Then, the block blank 1 is manually removed. In specific operation, the switch for controlling the air circuit of the air compressor can be a foot switch, which can free the hands to control the air circuit. When gas is introduced into the lower mold 201, the worker can press the lower mold 201 with their hands to prevent the lower mold 201 from being pushed up by the gas, which would cause the contact seal between the lower mold 201 and the rubber air groove 3015 to fail. After the block blank 1 is pushed out by the gas, the worker can judge from experience how much of the block blank 1 has been pushed out before stopping the supply of high-pressure gas. For example, when the block blank 1 is pushed out by 85%, the supply of high-pressure gas can be stopped. At this time, it is easy to remove the block blank 1 from the lower mold 201 manually.

[0037] It should also be noted that, as Figure 13 As shown, the outer pressure-holding rail 301, the inner pressure-holding rail 302, the connecting rail 303, the inlet rail 304, and the outlet rail 305 have space to accommodate the large hanging wheel 208, avoiding direct contact between the large hanging wheel 208 and the rail, and only allowing the large hanging wheel 208 to roll in contact with the upper mold opening rail 308; The sides of the outer pressure-holding track 301, the inner pressure-holding track 302 and the connecting track 303 can be fixed by a cylindrical fixing frame 4. The fixing frame 4 has a passage window 401 for the starting section of the outer pressure-holding track 301, the ending section of the inner pressure-holding track 302 and the connecting track 303 to pass through. The outer pressure-holding rail 301 (starting section), the inner pressure-holding rail 302 (end section), the inlet rail 304, the outlet rail 305, the arc-shaped rail A306, the lower mold-opening rail 307, the upper mold-opening rail 308, the arc-shaped rail B309, and the demolding rail 3010 can all be fixed by I-beam brackets.

[0038] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A carbon dioxide mineralization block equipment based on industrial solid waste, comprising a block mold (2) for forming block blanks (1), characterized in that: The block mold (2) includes a lower mold (201) and an upper mold (202) for extruding and forming the block blank (1), and also includes a non-powered pressure holding production line (3) for applying pressure holding pressure to the block mold (2). The non-powered pressure-holding production line (3) includes a spiral-shaped outer pressure-holding track (301) and an inner pressure-holding track (302), as well as a connecting track (303) connecting the outer pressure-holding track (301) and the inner pressure-holding track (302). The spiral directions of the outer pressure-holding track (301) and the inner pressure-holding track (302) are opposite. The outer pressure-holding track (301), the inner pressure-holding track (302) and the connecting track (303) are all composed of steel rails arranged in a mirror image.

2. The carbon dioxide mineralization block equipment based on industrial solid waste according to claim 1, characterized in that: The non-powered pressure holding production line (3) also includes an inlet rail (304) connected to the bottom of the outer pressure holding rail (301) and an outlet rail (305) connected to the bottom of the inner pressure holding rail (302). The inlet rail (304) and the outlet rail (305) are both straight rails, and both the inlet rail (304) and the outlet rail (305) are composed of steel rails set up in a mirror image.

3. The carbon dioxide mineralization block equipment based on industrial solid waste according to claim 2, characterized in that: The pressure applied to the block mold (2) from the opening to the connection of the inlet track (304) and the outlet track (305) gradually increases from zero to the holding pressure.

4. The carbon dioxide mineralization block equipment based on industrial solid waste according to any one of claims 1-3, characterized in that: Both the lower mold (201) and the upper mold (202) are fixedly connected to the side of the steel rail with roller brackets (205), and the roller brackets (205) are rotatably connected to spherical rollers (206) through a rod shaft. The outer pressure-holding rail (301), inner pressure-holding rail (302), connecting rail (303), entrance rail (304) and exit rail (305) have wheel grooves (3018) that are adapted to the shape of the spherical roller (206) on the rail tread.

5. The carbon dioxide mineralization block equipment based on industrial solid waste according to claim 1, characterized in that: A rubber pad (2010) is fixedly connected to one side of the lower mold (201) to prevent two adjacent lower molds (201) from colliding directly.

6. The carbon dioxide mineralization block equipment based on industrial solid waste according to claim 4, characterized in that: At the entrance track (304), a push hydraulic rod (5) is fixedly connected to the hydraulic rod bracket (6), and a push head (7) is fixedly connected to the end of the telescopic main shaft of the push hydraulic rod (5). One-way locking block (3011) is rotatably connected to the inner side of the end where the outer pressure-maintaining rail (301) is connected to the entrance rail (304). A limiting edge (3012) is provided on the side of the one-way locking block (3011) away from the rotating end to limit its rotation range. The limiting edge (3012) is used to contact the bottom surface of the rail of the outer pressure-maintaining rail (301).

7. The carbon dioxide mineralization block equipment based on industrial solid waste according to claim 4, characterized in that: The steel rail at the end of the exit track (305) is smoothly connected to one end of the arc track A (306) in a tangential direction. The other end of the arc track A (306) is smoothly connected to one end of the lower mold opening track (307) in a tangential direction. The other end of the lower mold opening track (307) is fixedly connected to the demolding track (3010) through the arc track B (309). The two ends of the arc track B (309) are smoothly connected to the lower mold opening track (307) and the demolding track (3010) in a tangential direction, respectively. An upper mold opening track (308) is provided above the lower mold opening track (307). From the arc track A (306) to the arc track B (309), the end of the upper mold opening track (308) is inclined downward. The distance between the lower mold opening track (307) and the upper mold opening track (308) gradually increases. The distance between the end of the track B side is not less than twice the distance between the beginning of the track A side.

8. The carbon dioxide mineralization block equipment based on industrial solid waste according to claim 7, characterized in that: The rod shaft is rotatably connected to the roller bracket (205). Along the forward direction of the block mold (2), a small hanging wheel (209) is fixed at the forward end of the upper mold (202) through the end of the rod shaft, and a large hanging wheel (208) is fixed at the rear end of the upper mold (202) through the end of the rod shaft. Both the large roller (208) and the small roller (209) are in rolling contact with the upper mold opening track (308), and the connecting line of the rotation axis of the large roller (208) and the small roller (209) is parallel to the lower mold opening track (307).

9. The carbon dioxide mineralization block equipment based on industrial solid waste according to claim 8, characterized in that: The lower mold (201) has a lower limit wheel (207) fixedly connected to the end of the rod shaft, and an inverted limit rail (3017) fixedly connected to the lower mold opening rail (307). The tread of the inverted limit rail (3017) is located above the lower limit wheel (207), and the inverted limit rail (3017) rolls in contact with the lower limit wheel (207).

10. The carbon dioxide mineralization block equipment based on industrial solid waste according to claim 7, characterized in that: A strip-shaped rubber air groove (3015) is fixedly connected to the top center of the demolding track (3010). One end of the air inlet pipe (3016) is connected to the inside of the rubber air groove (3015), and the other end of the air inlet pipe (3016) is connected to the air compressor. The bottom of the lower mold (201) is provided with an air inlet (203) that passes through the bottom, and the inner side of the lower mold (201) is slidably connected with a movable template (204).

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