Supercritical carbon dioxide foaming device for foam concrete preparation

Abstract

The utility model relates to a supercritical carbon dioxide foaming device for foam concrete preparation, and belongs to the technical field of foam concrete preparation, the supercritical carbon dioxide foaming device comprises a protection tank, a supporting frame is fixed to the outer surface of the protection tank, a cover plate is fixed to the top of the protection tank, and a mixing assembly penetrating into the protection tank is fixed to the top of the cover plate; a pressure relief opening is fixed to the top of the cover plate, and a feeding opening is fixed to the right side of the protection tank. According to the supercritical carbon dioxide foaming device for foam concrete preparation, when sampling is needed, a sampling block in the sampling assembly can be moved by rotating the sampling assembly, so that a raw material can be moved into the sampling block, and after the sampling assembly is separated from a cover plate, the sampling assembly can be pulled upwards, so that the raw material can be taken out; the sampling assembly is used for taking out the raw materials, so that sampling can be conveniently carried out, re-pressurization and re-heating are not needed, and the whole device is more practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to foamed concrete preparation technical field, specifically for the supercritical carbon dioxide foaming device for foamed concrete preparation. BACKGROUND

[0002] Foamed concrete is a kind of porous material composed of cementitious material, water, aggregate and prefabricated foam, because of its light weight, fireproof and waterproof, heat insulation and mechanical property, it is used in wall engineering, insulation and lining engineering, and foaming technology is the key to determine the stability of foamed concrete performance.

[0003] For example, the announcement number CN113733352B Chinese invention patent, the invention discloses a kind of method and device for preparing foamed concrete using supercritical carbon dioxide, method includes the following steps: (1) placing concrete and water in high-temperature high-pressure mixer, after mixing evenly, obtain concrete slurry;(2) preheating high-temperature high-pressure mixer;(3) CO2 gas is introduced into high-temperature high-pressure mixer, gaseous CO2 is converted into supercritical state;(4) foamed concrete foaming agent is mixed with water, and is injected into foamed concrete foaming agent bottle;(5) in high-temperature high-pressure mixer, concrete slurry, supercritical CO2 and the mixture obtained in step (4) are mixed and stirred, to form foamed concrete masterbatch;(6) foaming foamed concrete masterbatch;(7) after curing, obtain foamed concrete material, the foaming condition of the invention is mild, the preparation process is simple, the foam structure and engineering performance of foamed concrete are improved, and carbon dioxide is fixed.

[0004] In the foamed concrete preparation process, high-temperature high-pressure mixer is usually used to mix raw materials, so that foamed concrete masterbatch can be foamed, but before sampling, pressure and temperature need to be released and reduced, the pressure and temperature in the reaction kettle are reduced to normal temperature and pressure, then the head is opened for sampling, and the reaction is carried out again after sampling, which not only stops the reaction, but also adjusts the pressure and temperature before and after each sampling, which is time-consuming and laborious, therefore, the supercritical carbon dioxide foaming device for foamed concrete preparation is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a supercritical carbon dioxide foaming device for foamed concrete preparation, which has the advantages of convenient sampling, solves the problem of time-consuming and laborious adjustment of pressure and temperature before and after each sampling.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a supercritical carbon dioxide foaming device for preparing foamed concrete, comprising a protective tank, a support frame fixed to the outer surface of the protective tank, a cover plate fixed to the top of the protective tank, a mixing assembly fixed on the top of the cover plate that penetrates into the interior of the protective tank, the mixing assembly being used to mix raw materials, and a pressure relief port fixed to the top of the cover plate;

[0007] A feed port is fixed on the right side of the protective tank, an air inlet is fixed on the left side of the protective tank, a discharge port is fixed on the bottom of the protective tank, heating plates are fixed on the left and right side walls of the inner cavity of the protective tank, an insulation pad is fixed on the outer surface of the protective tank, and a sampling assembly is provided on the top of the cover plate that penetrates into the interior of the protective tank, and the sampling assembly is used to sample the raw materials;

[0008] The sampling assembly includes a positioning block, a sliding block, a rotating rod and a sampling block. The top of the cover plate is fixed to the positioning block, the bottom of the positioning block is fixed to the sliding block that passes through the interior of the protective tank, the interior of the positioning block is threadedly connected to the rotating rod that passes through the interior of the sliding block, and the bottom of the rotating rod is rotatably connected to the sampling block that is slidably connected to the sliding block.

[0009] By adopting this technical solution, the sampling block can be moved by rotating the rotating rod, and the rotating rod is rotationally connected to the sampling block, and the sampling block cannot rotate, so the rotating rod cannot drive the sampling block to rotate, thereby ensuring the overall stability.

[0010] Furthermore, the rotating rod is an externally threaded rod, and a threaded hole adapted to the rotating rod is provided inside the positioning block.

[0011] By adopting this technical solution, the connection is performed through the thread, so that when the rotating rod is pushed to rotate, the rotating rod will move simultaneously due to the squeezing of the thread.

[0012] Furthermore, a sampling groove is provided on the right side of the sampling block, and a through hole is provided on the right side of the sliding block.

[0013] By adopting this technical solution, the sampling grooves and through holes are provided so that the raw materials can flow into the interior of the sampling block.

[0014] Furthermore, the sampling block and the sliding block are both rectangular blocks, and the sampling block fits the inner wall of the sliding block.

[0015] By adopting this technical solution, the sampling block is set as a rectangular block so that the sampling block cannot rotate inside the sliding block and fits tightly, which can effectively prevent the raw material from flowing into the interior of the sliding block.

[0016] Furthermore, a control block is fixed on the top of the rotating rod, and a friction strip is fixed on the outer surface of the control block.

[0017] By adopting the technical scheme, the rotation of the rotating rod can be conveniently pushed through the control block, and the whole is more practical.

[0018] Further, the bottom of the cover plate is fixed with a sealing ring, and the top of the protective tank is provided with a sealing groove matched with the sealing ring.

[0019] By adopting the technical scheme, the sealing property of the connection between the cover plate and the protective tank can be effectively improved through the sealing ring and the sealing groove.

[0020] Further, the mixing assembly comprises a driving motor, a driving rod and a stirring rod, the top of the cover plate is fixed with the driving motor, the output shaft of the driving motor is fixed with the driving rod penetrating into the inside of the protective tank, and the outer surface of the driving rod is fixed with the stirring rod.

[0021] By adopting the technical scheme, the driving motor can drive the driving rod to rotate, and the stirring rod rotates to mix the raw materials.

[0022] Further, the inside of the cover plate is provided with a mounting hole, the sealing bearing is fixed in the hole, and the inside of the sealing bearing is fixed with the driving rod.

[0023] By adopting the technical scheme, the sealing property of the whole can be effectively improved through the sealing bearing, so that the gas is not easy to leak.

[0024] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0025] 1. The supercritical carbon dioxide foaming device for preparing foam concrete, when sampling is needed, the sampling block in the sampling assembly can be moved by rotating the sampling assembly, so that the raw materials can be moved into the inside of the sampling block, and then the sampling assembly is separated from the cover plate, the sampling assembly is pulled upward to take out the raw materials, so that sampling can be conveniently performed without the need of re-pressurizing and heating, and the whole is more practical.

[0026] 2. The supercritical carbon dioxide foaming device for preparing foam concrete, different height samples can be sampled through the plurality of sampling grooves, the sampling efficiency can be improved, the heat loss can be effectively prevented through the heat preservation pad, the stability of the whole can be effectively improved, the whole structure is simple, and the whole is more practical. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The present utility model structural schematic diagram is shown in the figure.

[0028] Figure 2 This is a schematic diagram of the structure of the sampling component of the utility model;

[0029] Figure 3 This is a three-dimensional diagram of the connection structure between the sliding block and the sampling block of the utility model.

[0030] In the figure: 1. Protective tank; 2. Support frame; 3. Cover plate; 4. Drive motor; 5. Drive rod; 6. Stirring rod; 7. Pressure relief port; 8. Feed port; 9. Air inlet; 10. Discharge port; 11. Heating plate; 12. Insulation pad; 13. Sampling assembly; 1301. Positioning block; 1302. Sliding block; 1303. Rotating rod; 1304. Sampling block; 1305. Sampling slot; 1306. Through hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1 In this embodiment, the supercritical carbon dioxide foaming device for preparing foam concrete includes a protective tank 1, a support frame 2 is fixed to the outer surface of the protective tank 1, a cover plate 3 is fixed to the top of the protective tank 1, a sealing ring is fixed to the bottom of the cover plate 3, and a sealing groove adapted to the sealing ring is opened on the top of the protective tank 1. The provision of the sealing ring and the sealing groove can effectively improve the sealing performance of the connection between the cover plate 3 and the protective tank 1.

[0033] In addition, a mixing assembly that passes through the interior of the protective tank 1 is fixed to the top of the cover plate 3. The mixing assembly is used to mix the raw materials. The mixing assembly includes a drive motor 4, a drive rod 5 and a stirring rod 6. The top of the cover plate 3 is fixed to the drive motor 4. The output shaft of the drive motor 4 is fixed to the drive rod 5 that passes through the interior of the protective tank 1. A mounting hole is opened inside the cover plate 3. A sealed bearing is fixed in the mounting hole. The interior of the sealed bearing is fixed to the drive rod 5. The provision of the sealed bearing can effectively improve the overall sealing performance, thereby preventing gas from leaking. The outer surface of the drive rod 5 is fixed to the stirring rod 6. The provision of the drive motor 4 can push the drive rod 5 to rotate, thereby causing the stirring rod 6 to rotate to mix the raw materials. A pressure relief port 7 is fixed to the top of the cover plate 3.

[0034] Furthermore, the right side of the protective tank 1 is fixed with the feeding port 8, the left side of the protective tank 1 is fixed with the air inlet 9, the bottom of the protective tank 1 is fixed with the discharge port 10, and the left and right side walls of the inner cavity of the protective tank 1 are both fixed with the heating plate 11. The outer surface of the protective tank 1 is fixed with the heat preservation pad 12, the top of the cover plate 3 is provided with the sampling assembly 13 penetrating into the inside of the protective tank 1, and the sampling assembly 13 is used for sampling the raw materials.

[0035] In general, the raw materials can be added into the inside of the protective tank 1 through the feeding port 8 and the air inlet 9, the mixed raw materials can be discharged through the discharge port 10, and the raw materials can be mixed by starting the driving motor 4.

[0036] Please refer to Figures 2 to 3 The sampling assembly 13 in the embodiment includes a positioning block 1301, a sliding block 1302, a rotating rod 1303 and a sampling block 1304. The top of the cover plate 3 is fixed with the positioning block 1301, the bottom of the positioning block 1301 is fixed with the sliding block 1302 penetrating into the inside of the protective tank 1, the inside of the positioning block 1301 is threadedly connected with the rotating rod 1303 penetrating into the inside of the sliding block 1302, the top of the rotating rod 1303 is fixed with a control block, the outer surface of the control block is fixed with a friction strip, the control block is arranged to facilitate the rotation of the rotating rod 1303, thereby making the whole more practical, the rotating rod 1303 is an external thread rod, the inside of the positioning block 1301 is provided with a threaded hole matched with the rotating rod 1303, and the rotating rod 1303 is connected with the threaded hole through the thread, so that when the rotating rod 1303 is rotated, the rotating rod 1303 will move due to the extrusion of the thread.

[0037] In addition, the bottom of the rotating rod 1303 is rotationally connected with the sampling block 1304 slidingly connected with the sliding block 1302, the right side of the sampling block 1304 is provided with a sampling groove 1305, and the right side of the sliding block 1302 is provided with a through hole 1306. The sampling groove 1305 and the through hole 1306 are arranged to make the raw materials flow into the inside of the sampling block 1304, the sampling block 1304 and the sliding block 1302 are both rectangular blocks, the inner walls of the sampling block 1304 and the sliding block 1302 are tightly fitted, and the sampling block 1304 is arranged as a rectangular block to prevent the raw materials from flowing into the inside of the sliding block 1302.

[0038] In general, the rotating rod 1303 is rotated to move the sampling block 1304, the rotating rod 1303 is rotationally connected with the sampling block 1304, and the sampling block 1304 cannot be rotated, so that the rotating rod 1303 cannot rotate the sampling block 1304, thereby ensuring the stability of the whole.

[0039] The electric elements appearing in the text are electrically connected with the controller and the power supply, the control mode of the utility model is controlled through the controller, the control circuit of the controller can be realized through simple programming of the person skilled in the art, the power supply also belongs to the common knowledge in the art, and the utility model is mainly used for protecting the mechanical device, therefore, the control mode and the circuit connection of the utility model will not be explained in detail.

[0040] The working principle of the above embodiment is as follows:

[0041] The required raw materials can be added to the inside of the protective tank 1 through the feeding port 8 and the air inlet 9, and the driving rod 5 can be rotated by starting the driving motor 4, driving the stirring rod 6 to rotate, so that the stirring rod 6 can mix the raw materials. When sampling is needed, the rotating rod 1303 is rotated to drive the sampling block 1304 to move due to the extrusion of the thread, so that the sampling groove 1305 and the through hole 1306 overlap, and then the raw materials can flow into the inside of the sampling groove 1305. At this time, the rotating rod 1303 is reversely rotated, so that the sampling groove 1305 and the through hole 1306 are misaligned, and then the raw materials are stored in the inside of the sampling block 1304. At this time, the bolts between the cover plate 3 and the positioning block 1301 are disassembled, the positioning block 1301 is pulled upwards, the sampling assembly 13 is moved upwards, the sampling block 1304 is taken out, and then sampling can be conveniently carried out. Finally, the rotating rod 1303 is rotated to make the sampling groove 1305 and the through hole 1306 overlap again, and the sliding block 1302 is always in sliding connection with the cover plate 3, so that the leakage of gas can be effectively prevented, and the whole is more practical.

Claims

1. A supercritical carbon dioxide foaming device for preparing foamed concrete, comprising a protective tank (1), characterized in that: A support frame (2) is fixed to the outer surface of the protective tank (1), a cover plate (3) is fixed to the top of the protective tank (1), a mixing assembly penetrating into the interior of the protective tank (1) is fixed to the top of the cover plate (3), the mixing assembly is used to mix raw materials, and a pressure relief port (7) is fixed to the top of the cover plate (3); A feed port (8) is fixed on the right side of the protective tank (1), an air inlet (9) is fixed on the left side of the protective tank (1), a discharge port (10) is fixed on the bottom of the protective tank (1), heating plates (11) are fixed on the left and right side walls of the inner cavity of the protective tank (1), a heat insulation pad (12) is fixed on the outer surface of the protective tank (1), and a sampling assembly (13) is provided on the top of the cover plate (3) and penetrates into the interior of the protective tank (1), and the sampling assembly (13) is used to sample the raw materials; The sampling assembly (13) includes a positioning block (1301), a sliding block (1302), a rotating rod (1303) and a sampling block (1304), the top of the cover plate (3) is fixed to the positioning block (1301), the bottom of the positioning block (1301) is fixed to the sliding block (1302) penetrating into the interior of the protective tank (1), the interior of the positioning block (1301) is threadedly connected to the rotating rod (1303) penetrating into the interior of the sliding block (1302), and the bottom of the rotating rod (1303) is rotationally connected to the sampling block (1304) that is slidably connected to the sliding block (1302).

2. The supercritical carbon dioxide foaming device for preparing foamed concrete according to claim 1, characterized in that: The rotating rod (1303) is an externally threaded rod, and a threaded hole adapted to the rotating rod (1303) is provided inside the positioning block (1301).

3. The supercritical carbon dioxide foaming device for preparing foamed concrete according to claim 1, characterized in that: A sampling slot (1305) is provided on the right side of the sampling block (1304), and a through hole (1306) is provided on the right side of the sliding block (1302).

4. The supercritical carbon dioxide foaming device for preparing foamed concrete according to claim 1, characterized in that: The sampling block (1304) and the sliding block (1302) are both rectangular blocks, and the sampling block (1304) fits in the inner wall of the sliding block (1302).

5. The supercritical carbon dioxide foaming device for preparing foamed concrete according to claim 1, characterized in that: A control block is fixed on the top of the rotating rod (1303), and a friction strip is fixed on the outer surface of the control block.

6. The supercritical carbon dioxide foaming device for preparing foamed concrete according to claim 1, characterized in that: A sealing ring is fixed to the bottom of the cover plate (3), and a sealing groove adapted to the sealing ring is provided on the top of the protective tank (1).

7. The supercritical carbon dioxide foaming device for preparing foamed concrete according to claim 1, characterized in that: The mixing assembly comprises a driving motor (4), a driving rod (5) and a stirring rod (6); the top of the cover plate (3) is fixed to the driving motor (4); the output shaft of the driving motor (4) is fixed to the driving rod (5) extending into the interior of the protective tank (1); and the outer surface of the driving rod (5) is fixed to the stirring rod (6).

8. The supercritical carbon dioxide foaming device for preparing foamed concrete according to claim 7, characterized in that: A mounting hole is provided inside the cover plate (3), a sealed bearing is fixed inside the mounting hole, and the interior of the sealed bearing is fixed to the driving rod (5).

Images